Add bat panic regression test when LiveScript is missing

Make grep-cli optional dependency
update snapshot tests
2025-09-01 10:52:24 +01:00 · 2021-10-23 10:40:27 +02:00 · 2021-10-17 21:22:57 +02:00 · 2021-10-17 21:21:23 +02:00 · 2021-10-17 21:21:23 +02:00 · 2021-10-17 21:21:23 +02:00
98 changed files with 2235 additions and 1247 deletions
--- a/.github/workflows/CICD.yml
+++ b/.github/workflows/CICD.yml
@@ -1,7 +1,7 @@
 name: CICD

 env:
-  MIN_SUPPORTED_RUST_VERSION: "1.45.0"
+  MIN_SUPPORTED_RUST_VERSION: "1.46.0"
  CICD_INTERMEDIATES_DIR: "_cicd-intermediates"

 on:
@@ -14,6 +14,19 @@ on:
      - '*'

 jobs:
+  ensure_cargo_fmt:
+    name: Ensure 'cargo fmt' has been run
+    runs-on: ubuntu-20.04
+    steps:
+    - uses: actions-rs/toolchain@v1
+      with:
+        toolchain: stable
+        default: true
+        profile: minimal
+        components: rustfmt
+    - uses: actions/checkout@v2
+    - run: cargo fmt -- --check
+
  min_version:
    name: Minimum supported rust version
    runs-on: ubuntu-20.04
@@ -27,17 +40,12 @@ jobs:
        toolchain: ${{ env.MIN_SUPPORTED_RUST_VERSION }}
        default: true
        profile: minimal # minimal component installation (ie, no documentation)
-        components: clippy, rustfmt
-    - name: Ensure `cargo fmt` has been run
-      uses: actions-rs/cargo@v1
-      with:
-        command: fmt
-        args: -- --check
+        components: clippy
    - name: Run clippy (on minimum supported rust version to prevent warnings we can't fix)
      uses: actions-rs/cargo@v1
      with:
        command: clippy
-        args: --locked --all-targets --all-features
+        args: --locked --all-targets --all-features -- --allow clippy::unknown_clippy_lints
    - name: Run tests
      uses: actions-rs/cargo@v1
      with:
@@ -86,6 +94,21 @@ jobs:
      run: bat --list-languages
    - name: List of themes
      run: bat --list-themes
+    - name: Test custom assets
+      run: tests/syntax-tests/test_custom_assets.sh
+
+  documentation:
+    name: Documentation
+    runs-on: ubuntu-20.04
+    steps:
+    - name: Git checkout
+      uses: actions/checkout@v2
+    - name: Install Rust toolchain
+      uses: actions-rs/toolchain@v1
+      with:
+        toolchain: stable
+        default: true
+        profile: minimal
    - name: Check documentation
      env:
        RUSTDOCFLAGS: -D warnings
@@ -95,24 +118,23 @@ jobs:
        args: --locked --no-deps --document-private-items --all-features

  build:
-    name: ${{ matrix.job.os }} (${{ matrix.job.target }})
+    name: ${{ matrix.job.target }} (${{ matrix.job.os }})
    runs-on: ${{ matrix.job.os }}
    strategy:
      fail-fast: false
      matrix:
        job:
-          - { os: ubuntu-20.04, target: arm-unknown-linux-gnueabihf , use-cross: true }
-          - { os: ubuntu-20.04, target: arm-unknown-linux-musleabihf, use-cross: true }
-          - { os: ubuntu-20.04, target: aarch64-unknown-linux-gnu   , use-cross: true }
-          - { os: ubuntu-20.04, target: i686-unknown-linux-gnu      , use-cross: true }
-          - { os: ubuntu-20.04, target: i686-unknown-linux-musl     , use-cross: true }
-          - { os: ubuntu-20.04, target: x86_64-unknown-linux-gnu    }
-          - { os: ubuntu-20.04, target: x86_64-unknown-linux-musl   , use-cross: true }
-          - { os: macos-10.15 , target: x86_64-apple-darwin         }
-          # - { os: windows-2019, target: i686-pc-windows-gnu         }  ## disabled; error: linker `i686-w64-mingw32-gcc` not found
-          - { os: windows-2019, target: i686-pc-windows-msvc        }
-          - { os: windows-2019, target: x86_64-pc-windows-gnu       }
-          - { os: windows-2019, target: x86_64-pc-windows-msvc      }
+          - { target: aarch64-unknown-linux-gnu   , os: ubuntu-20.04, use-cross: true }
+          - { target: arm-unknown-linux-gnueabihf , os: ubuntu-20.04, use-cross: true }
+          - { target: arm-unknown-linux-musleabihf, os: ubuntu-20.04, use-cross: true }
+          - { target: i686-pc-windows-msvc        , os: windows-2019                  }
+          - { target: i686-unknown-linux-gnu      , os: ubuntu-20.04, use-cross: true }
+          - { target: i686-unknown-linux-musl     , os: ubuntu-20.04, use-cross: true }
+          - { target: x86_64-apple-darwin         , os: macos-10.15                   }
+          - { target: x86_64-pc-windows-gnu       , os: windows-2019                  }
+          - { target: x86_64-pc-windows-msvc      , os: windows-2019                  }
+          - { target: x86_64-unknown-linux-gnu    , os: ubuntu-20.04                  }
+          - { target: x86_64-unknown-linux-musl   , os: ubuntu-20.04, use-cross: true }
    steps:
    - name: Checkout source code
      uses: actions/checkout@v2
@@ -194,12 +216,21 @@ jobs:
        echo ::set-output name=BIN_PATH::${BIN_PATH}
        echo ::set-output name=BIN_NAME::${BIN_NAME}

+    - name: Set testing options
+      id: test-options
+      shell: bash
+      run: |
+        # test only library unit tests and binary for arm-type targets
+        unset CARGO_TEST_OPTIONS
+        unset CARGO_TEST_OPTIONS ; case ${{ matrix.job.target }} in arm-* | aarch64-*) CARGO_TEST_OPTIONS="--lib --bin ${PROJECT_NAME}" ;; esac;
+        echo ::set-output name=CARGO_TEST_OPTIONS::${CARGO_TEST_OPTIONS}
+
    - name: Run tests
      uses: actions-rs/cargo@v1
      with:
        use-cross: ${{ matrix.job.use-cross }}
        command: test
-        args: --locked --target=${{ matrix.job.target }}
+        args: --locked --target=${{ matrix.job.target }} ${{ steps.test-options.outputs.CARGO_TEST_OPTIONS}}

    - name: Run bat
      uses: actions-rs/cargo@v1
@@ -276,6 +307,7 @@ jobs:
        # Autocompletion files
        cp 'target/${{ matrix.job.target }}/release/build/${{ env.PROJECT_NAME }}'-*/out/assets/completions/bat.bash "$ARCHIVE_DIR/autocomplete/${{ env.PROJECT_NAME }}.bash"
        cp 'target/${{ matrix.job.target }}/release/build/${{ env.PROJECT_NAME }}'-*/out/assets/completions/bat.fish "$ARCHIVE_DIR/autocomplete/${{ env.PROJECT_NAME }}.fish"
+        cp 'target/${{ matrix.job.target }}/release/build/${{ env.PROJECT_NAME }}'-*/out/assets/completions/_bat.ps1 "$ARCHIVE_DIR/autocomplete/_${{ env.PROJECT_NAME }}.ps1"
        cp 'target/${{ matrix.job.target }}/release/build/${{ env.PROJECT_NAME }}'-*/out/assets/completions/bat.zsh "$ARCHIVE_DIR/autocomplete/${{ env.PROJECT_NAME }}.zsh"

        # base compressed package
@@ -324,6 +356,7 @@ jobs:
        gzip -n --best "${DPKG_DIR}/usr/share/man/man1/${{ env.PROJECT_NAME }}.1"

        # Autocompletion files
+        install -Dm644 'target/${{ matrix.job.target }}/release/build/${{ env.PROJECT_NAME }}'-*/out/assets/completions/bat.bash "${DPKG_DIR}/usr/share/bash-completion/completions/${{ env.PROJECT_NAME }}"
        install -Dm644 'target/${{ matrix.job.target }}/release/build/${{ env.PROJECT_NAME }}'-*/out/assets/completions/bat.fish "${DPKG_DIR}/usr/share/fish/vendor_completions.d/${{ env.PROJECT_NAME }}.fish"
        install -Dm644 'target/${{ matrix.job.target }}/release/build/${{ env.PROJECT_NAME }}'-*/out/assets/completions/bat.zsh "${DPKG_DIR}/usr/share/zsh/vendor-completions/_${{ env.PROJECT_NAME }}"

--- a/.gitmodules
+++ b/.gitmodules
@@ -230,3 +230,6 @@
 [submodule "assets/syntaxes/02_Extra/Slim"]
 	path = assets/syntaxes/02_Extra/Slim
 	url = https://github.com/slim-template/ruby-slim.tmbundle.git
+[submodule "assets/syntaxes/02_Extra/Racket"]
+	path = assets/syntaxes/02_Extra/Racket
+	url = https://github.com/follesoe/sublime-racket.git
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,16 +3,23 @@
 ## Features

 - `$BAT_CONFIG_DIR` is now a recognized environment variable. It has precedence over `$XDG_CONFIG_HOME`, see #1727 (@billrisher)
+- Support for `x:+delta` syntax in line ranges (e.g. `20:+10`). See  #1810 (@bojan88)

 ## Bugfixes

 - Python syntax highlighting no longer suffers from abysmal performance in specific scenarios. See #1688 (@keith-hall)
+- First line not shown in diff context. See #1891 (@divagant-martian)

-## Other
+## Performance

 - Load cached assets as fast as integrated assets, see #1753 (@Enselic)
 - Greatly reduce startup time in loop-through mode, e.g. when redirecting output. Instead of *50 ms* - *100 ms*, startup takes *5 ms* - *10 ms*. See #1747 (@Enselic)
+- Reduce startup time by approximately 80% for 91 out of 168 syntaxes when using `--language`. See #1787 (@Enselic)

+## Other
+
+- Add PowerShell completion, see #1826 (@rashil2000)
+- Minimum supported Rust version (MSRV) bumped to 1.46

 ## Syntaxes

@@ -22,16 +29,26 @@
 - Highlight for `vimrc` and `gvimrc` files, see #1763 (@SuperSandro2000)
 - Syslog highlighting improvements, see #1793 (@scop)
 - Added support for `slim` syntax, see #1693 (@mfinelli)
+- Racket, see #1884 (@jubnzv)

 ## New themes


 ## `bat` as a library

- Deprecate `HighlightingAssets::syntaxes()` and `HighlightingAssets::syntax_for_file_name()`. Use `HighlightingAssets::get_syntaxes()` and `HighlightingAssets::get_syntax_for_file_name()` instead. They return a `Result` which is needed for upcoming lazy-loading work to improve startup performance. They also return what `SyntaxSet` the returned `SyntaxReference` belongs to. See #1747, #1755 and #1776 (@Enselic)
+- Deprecate `HighlightingAssets::syntaxes()` and `HighlightingAssets::syntax_for_file_name()`. Use `HighlightingAssets::get_syntaxes()` and `HighlightingAssets::get_syntax_for_path()` instead. They return a `Result` which is needed for upcoming lazy-loading work to improve startup performance. They also return which `SyntaxSet` the returned `SyntaxReference` belongs to. See #1747, #1755, #1776, #1862 (@Enselic)
+- Remove `HighlightingAssets::from_files` and `HighlightingAssets::save_to_cache`. Instead of calling the former and then the latter you now make a single call to `bat::assets::build`. See #1802 (@Enselic)
+- Replace  the `error::Error(error::ErrorKind, _)` struct and enum with an `error::Error` enum. `Error(ErrorKind::UnknownSyntax, _)` becomes `Error::UnknownSyntax`, etc. Also remove the `error::ResultExt` trait. These changes stem from replacing `error-chain` with `thiserror`. See #1820 (@Enselic)



+# v0.18.3
+
+## Bugfixes
+
+- Bump `git2` dependency to fix build with Rust 1.54, see #1761
+
+
 # v0.18.2

 ## Features
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -46,9 +46,9 @@ dependencies = [

 [[package]]
 name = "assert_cmd"
-version = "1.0.8"
+version = "2.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c98233c6673d8601ab23e77eb38f999c51100d46c5703b17288c57fddf3a1ffe"
+checksum = "b800c4403e8105d959595e1f88119e78bc12bc874c4336973658b648a746ba93"
 dependencies = [
 "bstr",
 "doc-comment",
@@ -83,12 +83,13 @@ checksum = "904dfeac50f3cdaba28fc6f57fdcddb75f49ed61346676a78c4ffe55877802fd"

 [[package]]
 name = "bat"
-version = "0.18.2"
+version = "0.18.3"
 dependencies = [
 "ansi_colours",
 "ansi_term 0.12.1",
 "assert_cmd",
 "atty",
+ "bincode",
 "bugreport",
 "clap",
 "clircle",
@@ -96,7 +97,7 @@ dependencies = [
 "content_inspector",
 "dirs-next",
 "encoding",
- "error-chain",
+ "flate2",
 "git2",
 "globset",
 "grep-cli",
@@ -112,6 +113,7 @@ dependencies = [
 "shell-words",
 "syntect",
 "tempfile",
+ "thiserror",
 "unicode-width",
 "wait-timeout",
 "wild",
@@ -143,9 +145,9 @@ checksum = "349f9b6a179ed607305526ca489b34ad0a41aed5f7980fa90eb03160b69598fb"

 [[package]]
 name = "bitflags"
-version = "1.2.1"
+version = "1.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cf1de2fe8c75bc145a2f577add951f8134889b4795d47466a54a5c846d691693"
+checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"

 [[package]]
 name = "bstr"
@@ -376,15 +378,6 @@ version = "0.1.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a246d82be1c9d791c5dfde9a2bd045fc3cbba3fa2b11ad558f27d01712f00569"

-[[package]]
-name = "error-chain"
-version = "0.12.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2d2f06b9cac1506ece98fe3231e3cc9c4410ec3d5b1f24ae1c8946f0742cdefc"
-dependencies = [
- "version_check",
-]
-
 [[package]]
 name = "fancy-regex"
 version = "0.7.1"
@@ -397,9 +390,9 @@ dependencies = [

 [[package]]
 name = "flate2"
-version = "1.0.20"
+version = "1.0.22"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cd3aec53de10fe96d7d8c565eb17f2c687bb5518a2ec453b5b1252964526abe0"
+checksum = "1e6988e897c1c9c485f43b47a529cef42fde0547f9d8d41a7062518f1d8fc53f"
 dependencies = [
 "cfg-if",
 "crc32fast",
@@ -597,9 +590,9 @@ checksum = "830d08ce1d1d941e6b30645f1a0eb5643013d835ce3779a5fc208261dbe10f55"

 [[package]]
 name = "libc"
-version = "0.2.98"
+version = "0.2.103"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "320cfe77175da3a483efed4bc0adc1968ca050b098ce4f2f1c13a56626128790"
+checksum = "dd8f7255a17a627354f321ef0055d63b898c6fb27eff628af4d1b66b7331edf6"

 [[package]]
 name = "libgit2-sys"
@@ -691,9 +684,9 @@ dependencies = [

 [[package]]
 name = "nix"
-version = "0.22.0"
+version = "0.23.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cf1e25ee6b412c2a1e3fcb6a4499a5c1bfe7f43e014bdce9a6b6666e5aa2d187"
+checksum = "f305c2c2e4c39a82f7bf0bf65fb557f9070ce06781d4f2454295cc34b1c43188"
 dependencies = [
 "bitflags",
 "cc",
@@ -817,9 +810,9 @@ checksum = "ac74c624d6b2d21f425f752262f42188365d7b8ff1aff74c82e45136510a4857"

 [[package]]
 name = "predicates"
-version = "2.0.1"
+version = "2.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bc3d91237f5de3bcd9d927e24d03b495adb6135097b001cea7403e2d573d00a9"
+checksum = "c143348f141cc87aab5b950021bac6145d0e5ae754b0591de23244cee42c9308"
 dependencies = [
 "difflib",
 "float-cmp",
@@ -998,18 +991,18 @@ checksum = "568a8e6258aa33c13358f81fd834adb854c6f7c9468520910a9b1e8fac068012"

 [[package]]
 name = "serde"
-version = "1.0.127"
+version = "1.0.130"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f03b9878abf6d14e6779d3f24f07b2cfa90352cfec4acc5aab8f1ac7f146fae8"
+checksum = "f12d06de37cf59146fbdecab66aa99f9fe4f78722e3607577a5375d66bd0c913"
 dependencies = [
 "serde_derive",
 ]

 [[package]]
 name = "serde_derive"
-version = "1.0.127"
+version = "1.0.130"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a024926d3432516606328597e0f224a51355a493b49fdd67e9209187cbe55ecc"
+checksum = "d7bc1a1ab1961464eae040d96713baa5a724a8152c1222492465b54322ec508b"
 dependencies = [
 "proc-macro2",
 "quote",
@@ -1029,12 +1022,12 @@ dependencies = [

 [[package]]
 name = "serde_yaml"
-version = "0.8.17"
+version = "0.8.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "15654ed4ab61726bf918a39cb8d98a2e2995b002387807fa6ba58fdf7f59bb23"
+checksum = "d8c608a35705a5d3cdc9fbe403147647ff34b921f8e833e49306df898f9b20af"
 dependencies = [
 "dtoa",
- "linked-hash-map",
+ "indexmap",
 "serde",
 "yaml-rust",
 ]
@@ -1188,6 +1181,26 @@ dependencies = [
 "unicode-width",
 ]

+[[package]]
+name = "thiserror"
+version = "1.0.29"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "602eca064b2d83369e2b2f34b09c70b605402801927c65c11071ac911d299b88"
+dependencies = [
+ "thiserror-impl",
+]
+
+[[package]]
+name = "thiserror-impl"
+version = "1.0.29"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bad553cc2c78e8de258400763a647e80e6d1b31ee237275d756f6836d204494c"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "tinyvec"
 version = "1.2.0"
@@ -1229,9 +1242,9 @@ dependencies = [

 [[package]]
 name = "unicode-width"
-version = "0.1.8"
+version = "0.1.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9337591893a19b88d8d87f2cec1e73fad5cdfd10e5a6f349f498ad6ea2ffb1e3"
+checksum = "3ed742d4ea2bd1176e236172c8429aaf54486e7ac098db29ffe6529e0ce50973"

 [[package]]
 name = "unicode-xid"
@@ -1263,12 +1276,6 @@ version = "0.8.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f1bddf1187be692e79c5ffeab891132dfb0f236ed36a43c7ed39f1165ee20191"

-[[package]]
-name = "version_check"
-version = "0.9.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5fecdca9a5291cc2b8dcf7dc02453fee791a280f3743cb0905f8822ae463b3fe"
-
 [[package]]
 name = "wait-timeout"
 version = "0.2.0"
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -6,7 +6,7 @@ homepage = "https://github.com/sharkdp/bat"
 license = "MIT/Apache-2.0"
 name = "bat"
 repository = "https://github.com/sharkdp/bat"
-version = "0.18.2"
+version = "0.18.3"
 exclude = ["assets/syntaxes/*", "assets/themes/*"]
 build = "build.rs"
 edition = '2018'
@@ -33,7 +33,7 @@ minimal-application = [
    "wild",
 ]
 git = ["git2"] # Support indicating git modifications
-paging = ["shell-words"] # Support applying a pager on the output
+paging = ["shell-words", "grep-cli"] # Support applying a pager on the output
 # Add "syntect/plist-load" when https://github.com/trishume/syntect/pull/345 reaches us
 build-assets = ["syntect/yaml-load", "syntect/dump-create"]

@@ -45,14 +45,17 @@ regex-fancy = ["syntect/regex-fancy"] # Use the rust-only "fancy-regex" engine
 atty = { version = "0.2.14", optional = true }
 ansi_term = "^0.12.1"
 ansi_colours = "^1.0"
+bincode = "1.0"
 console = "0.14.1"
+flate2 = "1.0"
 lazy_static = { version = "1.4", optional = true }
 lazycell = "1.0"
+thiserror = "1.0"
 wild = { version = "2.0", optional = true }
 content_inspector = "0.2.4"
 encoding = "0.2"
 shell-words = { version = "1.0.0", optional = true }
-unicode-width = "0.1.8"
+unicode-width = "0.1.9"
 globset = "0.4"
 serde = { version = "1.0", features = ["derive"] }
 serde_yaml = "0.8"
@@ -61,7 +64,7 @@ path_abs = { version = "0.5", default-features = false }
 clircle = "0.3"
 bugreport = { version = "0.4", optional = true }
 dirs-next = { version = "2.0.0", optional = true }
-grep-cli = "0.1.6"
+grep-cli = { version = "0.1.6", optional = true }

 [dependencies.git2]
 version = "0.13"
@@ -71,7 +74,7 @@ default-features = false
 [dependencies.syntect]
 version = "4.6.0"
 default-features = false
-features = ["parsing", "dump-load"]
+features = ["parsing"]

 [dependencies.clap]
 version = "2.33"
@@ -79,19 +82,15 @@ optional = true
 default-features = false
 features = ["suggestions", "color", "wrap_help"]

-[dependencies.error-chain]
-version = "0.12"
-default-features = false
-
 [dev-dependencies]
-assert_cmd = "1.0.8"
+assert_cmd = "2.0.1"
 serial_test = "0.5.1"
-predicates = "2.0.1"
+predicates = "2.0.2"
 wait-timeout = "0.2.0"
 tempfile = "3.2.0"

 [target.'cfg(unix)'.dev-dependencies]
-nix = "0.22.0"
+nix = "0.23.0"

 [build-dependencies]
 clap = { version = "2.33", optional = true }
--- a/README.md
+++ b/README.md
@@ -12,7 +12,11 @@
  <a href="#installation">Installation</a> •
  <a href="#customization">Customization</a> •
  <a href="#project-goals-and-alternatives">Project goals, alternatives</a><br>
-  [<a href="https://github.com/chinanf-boy/bat-zh">中文</a>] [<a href="doc/README-ja.md">日本語</a>] [<a href="doc/README-ko.md">한국어</a>] [<a href="doc/README-ru.md">Русский</a>]
+  [English]
+  [<a href="https://github.com/chinanf-boy/bat-zh">中文</a>]
+  [<a href="doc/README-ja.md">日本語</a>]
+  [<a href="doc/README-ko.md">한국어</a>]
+  [<a href="doc/README-ru.md">Русский</a>]
 </p>

 ### Syntax highlighting
@@ -196,10 +200,7 @@ The [`prettybat`](https://github.com/eth-p/bat-extras/blob/master/doc/prettybat.
 ### On Ubuntu (using `apt`)
 *... and other Debian-based Linux distributions.*

-`bat` is making its way through the [Ubuntu](https://packages.ubuntu.com/eoan/bat) and
-[Debian](https://packages.debian.org/testing/bat) package release process, and is available
-for Ubuntu as of Eoan 19.10. On Debian `bat` is currently available on the unstable
-"Sid" branch and on the testing branch.
+`bat` is available on [Ubuntu since 20.04 ("Focal")](https://packages.ubuntu.com/search?keywords=bat&exact=1) and [Debian since August 2021 (Debian 11 - "Bullseye")](https://packages.debian.org/bullseye/bat).

 If your Ubuntu/Debian installation is new enough you can simply run:

@@ -222,7 +223,7 @@ the most recent release of `bat`, download the latest `.deb` package from the
 [release page](https://github.com/sharkdp/bat/releases) and install it via:

 ```bash
-sudo dpkg -i bat_0.18.2_amd64.deb  # adapt version number and architecture
+sudo dpkg -i bat_0.18.3_amd64.deb  # adapt version number and architecture
 ```

 ### On Alpine Linux
@@ -251,6 +252,14 @@ You can install [the `bat` package](https://koji.fedoraproject.org/koji/packagei
 dnf install bat
 ```

+### On Funtoo Linux
+
+You can install [the `bat` package](https://github.com/funtoo/dev-kit/tree/1.4-release/sys-apps/bat) from dev-kit.
+
+```bash
+emerge sys-apps/bat
+```
+
 ### On Gentoo Linux

 You can install [the `bat` package](https://packages.gentoo.org/packages/sys-apps/bat)
@@ -289,6 +298,14 @@ cd /usr/ports/textproc/bat
 make install
 ```

+### On OpenBSD
+
+You can install `bat` package using [`pkg_add(1)`](https://man.openbsd.org/pkg_add.1):
+
+```bash
+pkg_add bat
+```
+
 ### Via nix

 You can install `bat` using the [nix package manager](https://nixos.org/nix):
@@ -363,7 +380,7 @@ binaries are also available: look for archives with `musl` in the file name.

 ### From source

-If you want to build `bat` from source, you need Rust 1.45 or
+If you want to build `bat` from source, you need Rust 1.46 or
 higher. You can then use `cargo` to build everything:

 ```bash
@@ -598,7 +615,7 @@ Example configuration file:
 # Use italic text on the terminal (not supported on all terminals)
 --italic-text=always

-# Use C++ syntax for .ino files
+# Use C++ syntax for Arduino .ino files
 --map-syntax "*.ino:C++"
 ```

--- a/assets/completions/_bat.ps1.in
+++ b/assets/completions/_bat.ps1.in
@@ -0,0 +1,92 @@
+
+using namespace System.Management.Automation
+using namespace System.Management.Automation.Language
+
+Register-ArgumentCompleter -Native -CommandName '{{PROJECT_EXECUTABLE}}' -ScriptBlock {
+    param($wordToComplete, $commandAst, $cursorPosition)
+
+    $commandElements = $commandAst.CommandElements
+    $command = @(
+        '{{PROJECT_EXECUTABLE}}'
+        for ($i = 1; $i -lt $commandElements.Count; $i++) {
+            $element = $commandElements[$i]
+            if ($element -isnot [StringConstantExpressionAst] -or
+                $element.StringConstantType -ne [StringConstantType]::BareWord -or
+                $element.Value.StartsWith('-')) {
+                break
+        }
+        $element.Value
+    }) -join ';'
+
+    $completions = @(switch ($command) {
+        '{{PROJECT_EXECUTABLE}}' {
+            [CompletionResult]::new('-l', 'l', [CompletionResultType]::ParameterName, 'Set the language for syntax highlighting.')
+            [CompletionResult]::new('--language', 'language', [CompletionResultType]::ParameterName, 'Set the language for syntax highlighting.')
+            [CompletionResult]::new('-H', 'H', [CompletionResultType]::ParameterName, 'Highlight lines N through M.')
+            [CompletionResult]::new('--highlight-line', 'highlight-line', [CompletionResultType]::ParameterName, 'Highlight lines N through M.')
+            [CompletionResult]::new('--file-name', 'file-name', [CompletionResultType]::ParameterName, 'Specify the name to display for a file.')
+            [CompletionResult]::new('--diff-context', 'diff-context', [CompletionResultType]::ParameterName, 'diff-context')
+            [CompletionResult]::new('--tabs', 'tabs', [CompletionResultType]::ParameterName, 'Set the tab width to T spaces.')
+            [CompletionResult]::new('--wrap', 'wrap', [CompletionResultType]::ParameterName, 'Specify the text-wrapping mode (*auto*, never, character).')
+            [CompletionResult]::new('--terminal-width', 'terminal-width', [CompletionResultType]::ParameterName, 'Explicitly set the width of the terminal instead of determining it automatically. If prefixed with ''+'' or ''-'', the value will be treated as an offset to the actual terminal width. See also: ''--wrap''.')
+            [CompletionResult]::new('--color', 'color', [CompletionResultType]::ParameterName, 'When to use colors (*auto*, never, always).')
+            [CompletionResult]::new('--italic-text', 'italic-text', [CompletionResultType]::ParameterName, 'Use italics in output (always, *never*)')
+            [CompletionResult]::new('--decorations', 'decorations', [CompletionResultType]::ParameterName, 'When to show the decorations (*auto*, never, always).')
+            [CompletionResult]::new('--paging', 'paging', [CompletionResultType]::ParameterName, 'Specify when to use the pager, or use `-P` to disable (*auto*, never, always).')
+            [CompletionResult]::new('--pager', 'pager', [CompletionResultType]::ParameterName, 'Determine which pager to use.')
+            [CompletionResult]::new('-m', 'm', [CompletionResultType]::ParameterName, 'Use the specified syntax for files matching the glob pattern (''*.cpp:C++'').')
+            [CompletionResult]::new('--map-syntax', 'map-syntax', [CompletionResultType]::ParameterName, 'Use the specified syntax for files matching the glob pattern (''*.cpp:C++'').')
+            [CompletionResult]::new('--theme', 'theme', [CompletionResultType]::ParameterName, 'Set the color theme for syntax highlighting.')
+            [CompletionResult]::new('--style', 'style', [CompletionResultType]::ParameterName, 'Comma-separated list of style elements to display (*auto*, full, plain, changes, header, grid, rule, numbers, snip).')
+            [CompletionResult]::new('-r', 'r', [CompletionResultType]::ParameterName, 'Only print the lines from N to M.')
+            [CompletionResult]::new('--line-range', 'line-range', [CompletionResultType]::ParameterName, 'Only print the lines from N to M.')
+            [CompletionResult]::new('-A', 'A', [CompletionResultType]::ParameterName, 'Show non-printable characters (space, tab, newline, ..).')
+            [CompletionResult]::new('--show-all', 'show-all', [CompletionResultType]::ParameterName, 'Show non-printable characters (space, tab, newline, ..).')
+            [CompletionResult]::new('-p', 'p', [CompletionResultType]::ParameterName, 'Show plain style (alias for ''--style=plain'').')
+            [CompletionResult]::new('--plain', 'plain', [CompletionResultType]::ParameterName, 'Show plain style (alias for ''--style=plain'').')
+            [CompletionResult]::new('-d', 'd', [CompletionResultType]::ParameterName, 'Only show lines that have been added/removed/modified.')
+            [CompletionResult]::new('--diff', 'diff', [CompletionResultType]::ParameterName, 'Only show lines that have been added/removed/modified.')
+            [CompletionResult]::new('-n', 'n', [CompletionResultType]::ParameterName, 'Show line numbers (alias for ''--style=numbers'').')
+            [CompletionResult]::new('--number', 'number', [CompletionResultType]::ParameterName, 'Show line numbers (alias for ''--style=numbers'').')
+            [CompletionResult]::new('-f', 'f', [CompletionResultType]::ParameterName, 'f')
+            [CompletionResult]::new('--force-colorization', 'force-colorization', [CompletionResultType]::ParameterName, 'force-colorization')
+            [CompletionResult]::new('-P', 'P', [CompletionResultType]::ParameterName, 'Alias for ''--paging=never''')
+            [CompletionResult]::new('--no-paging', 'no-paging', [CompletionResultType]::ParameterName, 'Alias for ''--paging=never''')
+            [CompletionResult]::new('--list-themes', 'list-themes', [CompletionResultType]::ParameterName, 'Display all supported highlighting themes.')
+            [CompletionResult]::new('-L', 'L', [CompletionResultType]::ParameterName, 'Display all supported languages.')
+            [CompletionResult]::new('--list-languages', 'list-languages', [CompletionResultType]::ParameterName, 'Display all supported languages.')
+            [CompletionResult]::new('-u', 'u', [CompletionResultType]::ParameterName, 'u')
+            [CompletionResult]::new('--unbuffered', 'unbuffered', [CompletionResultType]::ParameterName, 'unbuffered')
+            [CompletionResult]::new('--no-config', 'no-config', [CompletionResultType]::ParameterName, 'Do not use the configuration file')
+            [CompletionResult]::new('--no-custom-assets', 'no-custom-assets', [CompletionResultType]::ParameterName, 'Do not load custom assets')
+            [CompletionResult]::new('--config-file', 'config-file', [CompletionResultType]::ParameterName, 'Show path to the configuration file.')
+            [CompletionResult]::new('--generate-config-file', 'generate-config-file', [CompletionResultType]::ParameterName, 'Generates a default configuration file.')
+            [CompletionResult]::new('--config-dir', 'config-dir', [CompletionResultType]::ParameterName, 'Show bat''s configuration directory.')
+            [CompletionResult]::new('--cache-dir', 'cache-dir', [CompletionResultType]::ParameterName, 'Show bat''s cache directory.')
+            [CompletionResult]::new('--diagnostic', 'diagnostic', [CompletionResultType]::ParameterName, 'Show diagnostic information for bug reports.')
+            [CompletionResult]::new('-h', 'h', [CompletionResultType]::ParameterName, 'Print this help message.')
+            [CompletionResult]::new('--help', 'help', [CompletionResultType]::ParameterName, 'Print this help message.')
+            [CompletionResult]::new('-V', 'V', [CompletionResultType]::ParameterName, 'Show version information.')
+            [CompletionResult]::new('--version', 'version', [CompletionResultType]::ParameterName, 'Show version information.')
+            [CompletionResult]::new('cache', 'cache', [CompletionResultType]::ParameterValue, 'Modify the syntax-definition and theme cache')
+            break
+        }
+        '{{PROJECT_EXECUTABLE}};cache' {
+            [CompletionResult]::new('--source', 'source', [CompletionResultType]::ParameterName, 'Use a different directory to load syntaxes and themes from.')
+            [CompletionResult]::new('--target', 'target', [CompletionResultType]::ParameterName, 'Use a different directory to store the cached syntax and theme set.')
+            [CompletionResult]::new('-b', 'b', [CompletionResultType]::ParameterName, 'Initialize (or update) the syntax/theme cache.')
+            [CompletionResult]::new('--build', 'build', [CompletionResultType]::ParameterName, 'Initialize (or update) the syntax/theme cache.')
+            [CompletionResult]::new('-c', 'c', [CompletionResultType]::ParameterName, 'Remove the cached syntax definitions and themes.')
+            [CompletionResult]::new('--clear', 'clear', [CompletionResultType]::ParameterName, 'Remove the cached syntax definitions and themes.')
+            [CompletionResult]::new('--blank', 'blank', [CompletionResultType]::ParameterName, 'Create completely new syntax and theme sets (instead of appending to the default sets).')
+            [CompletionResult]::new('-h', 'h', [CompletionResultType]::ParameterName, 'Prints help information')
+            [CompletionResult]::new('--help', 'help', [CompletionResultType]::ParameterName, 'Prints help information')
+            [CompletionResult]::new('-V', 'V', [CompletionResultType]::ParameterName, 'Prints version information')
+            [CompletionResult]::new('--version', 'version', [CompletionResultType]::ParameterName, 'Prints version information')
+            break
+        }
+    })
+
+    $completions.Where{ $_.CompletionText -like "$wordToComplete*" } |
+        Sort-Object -Property ListItemText
+}
--- a/assets/completions/bat.fish.in
+++ b/assets/completions/bat.fish.in
@@ -56,7 +56,7 @@ complete -c {{PROJECT_EXECUTABLE}} -s P -d "Disable paging. Alias for '--paging=

 complete -c {{PROJECT_EXECUTABLE}} -s A -l show-all -d "Show non-printable characters like space/tab/newline" -n "not __fish_seen_subcommand_from cache"

-complete -c {{PROJECT_EXECUTABLE}} -l style -xka "auto full plain changes header grid numbers" -d "Comma-separated list of style elements or presets to display with file contents" -n "not __fish_seen_subcommand_from cache"
+complete -c {{PROJECT_EXECUTABLE}} -l style -xka "auto full plain changes header grid rule numbers snip" -d "Comma-separated list of style elements or presets to display with file contents" -n "not __fish_seen_subcommand_from cache"

 complete -c {{PROJECT_EXECUTABLE}} -l tabs -x -d "<T> Set the tab width to T spaces (width of 0 passes tabs through directly)" -n "not __fish_seen_subcommand_from cache"

--- a/assets/completions/bat.zsh.in
+++ b/assets/completions/bat.zsh.in
@@ -75,7 +75,7 @@ _{{PROJECT_EXECUTABLE}}_main() {
        ;;

        style)
-            _values -s , 'style' auto full plain changes header grid numbers snip
+            _values -s , 'style' auto full plain changes header grid rule numbers snip
        ;;
    esac
 }
--- a/assets/manual/bat.1.in
+++ b/assets/manual/bat.1.in
@@ -50,6 +50,8 @@ highlights lines 30 to 40
 highlights lines 1 to 40
 .IP "\-\-highlight\-line 40:"
 highlights lines 40 to the end of the file
+.IP "\-\-highlight\-line 30:+10"
+highlights lines 30 to 40
 .RE
 .HP
 \fB\-\-file\-name\fR <name>...
@@ -154,6 +156,8 @@ prints lines 30 to 40
 prints lines 1 to 40
 .IP "\-\-line\-range 40:"
 prints lines 40 to the end of the file
+.IP "\-\-line\-range 30:+10"
+prints lines 30 to 40
 .RE
 .HP
 \fB\-L\fR, \fB\-\-list\-languages\fR
--- a/assets/minimal_syntaxes.bin
+++ b/assets/minimal_syntaxes.bin
--- a/assets/syntaxes/02_Extra/Julia
+++ b/assets/syntaxes/02_Extra/Julia
--- a/assets/syntaxes/02_Extra/Racket
+++ b/assets/syntaxes/02_Extra/Racket
--- a/assets/syntaxes/02_Extra/Racket.sublime-syntax
+++ b/assets/syntaxes/02_Extra/Racket.sublime-syntax
@@ -0,0 +1,52 @@
+%YAML 1.2
+---
+# http://www.sublimetext.com/docs/3/syntax.html
+name: Racket
+file_extensions:
+  - rkt
+scope: source.racket
+contexts:
+  main:
+    - match: '[^\\](\"[^\"]*\")'
+      captures:
+        1: string.quoted.double.source.racket
+    - match: '\((define)\s+([a-zA-Z0-9_\-?\+^]+)\s*'
+      scope: meta.variable.source.racket
+      captures:
+        1: keyword.source.racket
+        2: entity.name.variable.source.racket
+    - match: '\((define)\s+\(([a-zA-Z0-9_\-?\+^]+)\s*'
+      scope: meta.function.source.racket
+      captures:
+        1: keyword.source.racket
+        2: entity.name.function
+    - match: '\((struct)\s+([a-zA-Z0-9_\-?\+^]+)\s+'
+      scope: meta.struct.source.racket
+      captures:
+        1: keyword.source.racket
+        2: entity.name.type
+    - match: '[\s\(](if|lambda|cond|define|type-case|let|letrec|let!|\#lang|require|test|else|first|rest|define-type|define-type-alias|define-struct|not|local|error|lang)[\s\)]'
+      scope: meta.keywords.source.racket
+      captures:
+        1: keyword.source.racket
+    - match: '[\s\(](true|false|empty|null)[\s\)]'
+      captures:
+        1: constant.language.source.racket
+    - match: '[\s\(\[\{](#t|#true|#f|#false)[\s\)\]\}]'
+      captures:
+        1: constant.language.source.racket
+    - match: '(#\\[a-zA-Z0-9_\-?\+\.\!\"]+)'
+      captures:
+        1: constant.language.source.racket
+    - match: '\b(0|([1-9][0-9_]*))\b'
+      scope: constant.numeric.integer.source.racket
+    - match: ;
+      push:
+        - meta_scope: comment.line.documentation.source.racket
+        - match: $\n
+          pop: true
+    - match: '#\|'
+      push:
+        - meta_scope: comment.block.source.racket
+        - match: '\|#'
+          pop: true
--- a/build.rs
+++ b/build.rs
@@ -64,6 +64,11 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
        "assets/completions/bat.fish.in",
        out_dir.join("assets/completions/bat.fish"),
    )?;
+    template(
+        &variables,
+        "assets/completions/_bat.ps1.in",
+        out_dir.join("assets/completions/_bat.ps1"),
+    )?;
    template(
        &variables,
        "assets/completions/bat.zsh.in",
--- a/doc/README-ja.md
+++ b/doc/README-ja.md
@@ -1,7 +1,6 @@
 <p align="center">
  <img src="logo-header.svg" alt="bat - a cat clone with wings"><br>
-  <a href="https://travis-ci.org/sharkdp/bat"><img src="https://travis-ci.org/sharkdp/bat.svg?branch=master" alt="Build Status"></a>
-  <a href="https://ci.appveyor.com/project/sharkdp/bat"><img src="https://ci.appveyor.com/api/projects/status/cptsmtbiwbnr2vhf?svg=true"></a>
+  <a href="https://github.com/sharkdp/bat/actions?query=workflow%3ACICD"><img src="https://github.com/sharkdp/bat/workflows/CICD/badge.svg" alt="Build Status"></a>
  <img src="https://img.shields.io/crates/l/bat.svg" alt="license">
  <a href="https://crates.io/crates/bat"><img src="https://img.shields.io/crates/v/bat.svg?colorB=319e8c" alt="Version info"></a><br>
  シンタックスハイライトとGitとの連携機能付きの <i>cat(1)</i> クローン。
@@ -12,8 +11,12 @@
  <a href="#使い方">使い方</a> •
  <a href="#インストール">インストール</a> •
  <a href="#カスタマイズ">カスタマイズ</a> •
-  <a href="#プロジェクトの目標と既存の類似したOSS">プロジェクトの目標と既存の類似したOSS</a> •
-  翻訳 [<a href="https://github.com/chinanf-boy/bat-zh">中文</a>][<a href="README-ja.md">日本語</a>][<a href="README-ko.md">한국어</a>]
+  <a href="#プロジェクトの目標と既存の類似したOSS">プロジェクトの目標と既存の類似したOSS</a><br>
+  [<a href="../README.md">English</a>]
+  [<a href="https://github.com/chinanf-boy/bat-zh">中文</a>]
+  [日本語]
+  [<a href="README-ko.md">한국어</a>]
+  [<a href="README-ru.md">Русский</a>]
 </p>

 ### シンタックスハイライト
@@ -202,7 +205,7 @@ ln -s /usr/bin/batcat ~/.local/bin/bat
 batの最新リリースを実行する場合、または Ubuntu/Debian の古いバージョンを使用している場合は、[release page](https://github.com/sharkdp/bat/releases) から最新の `.deb` パッケージをダウンロードし、
 次の方法でインストールします:
 ```bash
-sudo dpkg -i bat_0.18.2_amd64.deb  # adapt version number and architecture
+sudo dpkg -i bat_0.18.3_amd64.deb  # adapt version number and architecture
 ```

 ### On Alpine Linux
@@ -522,7 +525,7 @@ export BAT_CONFIG_PATH="/path/to/bat.conf"
 # Use italic text on the terminal (not supported on all terminals)
 --italic-text=always

-# Use C++ syntax for .ino files
+# Use C++ syntax for Arduino .ino files
 --map-syntax "*.ino:C++"

 # Use ".gitignore"-style highlighting for ".ignore" files
--- a/doc/README-ko.md
+++ b/doc/README-ko.md
@@ -1,5 +1,5 @@
 <p align="center">
-  <img src="../doc/logo-header.svg" alt="bat - a cat clone with wings"><br>
+  <img src="logo-header.svg" alt="bat - a cat clone with wings"><br>
  <a href="https://github.com/sharkdp/bat/actions?query=workflow%3ACICD"><img src="https://github.com/sharkdp/bat/workflows/CICD/badge.svg" alt="Build Status"></a>
  <img src="https://img.shields.io/crates/l/bat.svg" alt="license">
  <a href="https://crates.io/crates/bat"><img src="https://img.shields.io/crates/v/bat.svg?colorB=319e8c" alt="Version info"></a><br>
@@ -11,8 +11,12 @@
  <a href="#사용법">사용법</a> •
  <a href="#설치">설치</a> •
  <a href="#사용자화">사용자화</a> •
-  <a href="#프로젝트-목표와-대안들">프로젝트 목표와 대안들</a> •
-  [<a href="https://github.com/chinanf-boy/bat-zh">中文</a>] [<a href="../doc/README-ja.md">日本語</a>] [<a href="../doc/README-ko.md">한국어</a>] [<a href="../doc/README-ru.md">Русский</a>]
+  <a href="#프로젝트-목표와-대안들">프로젝트 목표와 대안들</a><br>
+  [<a href="../README.md">English</a>]
+  [<a href="https://github.com/chinanf-boy/bat-zh">中文</a>]
+  [<a href="README-ja.md">日本語</a>]
+  [한국어]
+  [<a href="README-ru.md">Русский</a>]
 </p>

 ### 문법 강조
@@ -244,7 +248,7 @@ ln -s /usr/bin/batcat ~/.local/bin/bat
 다음과 같이 `.deb` 패키지를 받아 설치하세요:

 ```bash
-sudo dpkg -i bat_0.18.2_amd64.deb  # adapt version number and architecture
+sudo dpkg -i bat_0.18.3_amd64.deb  # adapt version number and architecture
 ```

 ### Alpine Linux에서
@@ -279,6 +283,14 @@ pacman -S bat
 dnf install bat
 ```

+### Funtoo Linux에서
+
+dev-kit을 통해 [`bat` 패키지](https://github.com/funtoo/dev-kit/tree/1.4-release/sys-apps/bat)를 설치할 수 있습니다: 
+
+```bash
+emerge sys-apps/bat
+```
+
 ### Gentoo Linux에서

 공식 소스를 통해
@@ -404,7 +416,7 @@ scoop install bat

 ### 소스에서

-`bat`의 소스를 빌드하기 위해서는, Rust 1.45 이상이 필요합니다.
+`bat`의 소스를 빌드하기 위해서는, Rust 1.46 이상이 필요합니다.
 `cargo`를 이용해 전부 빌드할 수 있습니다:

 ```bash
@@ -663,7 +675,7 @@ bat --generate-config-file
 # 터미널에서 이탤릭체 쓰기 (일부 터미널에서 미지원)
 --italic-text=always

-# .ino 파일에 C++ 문법 쓰기
+# Arduino .ino 파일에 C++ 문법 쓰기
 --map-syntax "*.ino:C++"
 ```

@@ -797,6 +809,10 @@ cargo install --locked --force
 - [keith-hall](https://github.com/keith-hall)
 - [Enselic](https://github.com/Enselic)

+## 보안 취약점
+
+만약 `bat`의 취약점을 발견하였다면, [David Peter](https://david-peter.de/)에게 메일로 연락주시기 바랍니다. 
+
 ## 프로젝트 목표와 대안들

 `bat`은 다음과 같은 목표를 달성하려고 합니다:
--- a/doc/README-ru.md
+++ b/doc/README-ru.md
@@ -1,7 +1,6 @@
 <p align="center">
-  <img src="doc/logo-header.svg" alt="bat - a cat clone with wings"><br>
-  <a href="https://travis-ci.org/sharkdp/bat"><img src="https://travis-ci.org/sharkdp/bat.svg?branch=master" alt="Build Status"></a>
-  <a href="https://ci.appveyor.com/project/sharkdp/bat"><img src="https://ci.appveyor.com/api/projects/status/cptsmtbiwbnr2vhf/branch/master?svg=true"></a>
+  <img src="logo-header.svg" alt="bat - a cat clone with wings"><br>
+  <a href="https://github.com/sharkdp/bat/actions?query=workflow%3ACICD"><img src="https://github.com/sharkdp/bat/workflows/CICD/badge.svg" alt="Build Status"></a>
  <img src="https://img.shields.io/crates/l/bat.svg" alt="license">
  <a href="https://crates.io/crates/bat"><img src="https://img.shields.io/crates/v/bat.svg?colorB=319e8c" alt="Version info"></a><br>
  Клон утилиты <i>cat(1)</i> с поддержкой выделения синтаксиса и Git
@@ -12,8 +11,12 @@
  <a href="#как-использовать">Использование</a> •
  <a href="#установка">Установка</a> •
  <a href="#кастомизация">Кастомизация</a> •
-  <a href="#цели-и-альтернативы">Цели и альтернативы </a> •
-  Перевод [<a href="https://github.com/chinanf-boy/bat-zh">中文</a>][<a href="doc/README-ja.md">日本語</a>][<a href="doc/README-ko.md">한국어</a>][<a href="doc/README-ru.md">Русский</a>]
+  <a href="#цели-и-альтернативы">Цели и альтернативы </a><br>
+  [<a href="../README.md">English]
+  [<a href="https://github.com/chinanf-boy/bat-zh">中文</a>]
+  [<a href="README-ja.md">日本語</a>]
+  [<a href="README-ko.md">한국어</a>]
+  [Русский]
 </p>

 ### Выделение синтаксиса
@@ -185,7 +188,7 @@ ln -s /usr/bin/batcat ~/.local/bin/bat
 [release page](https://github.com/sharkdp/bat/releases) и установить так:

 ```bash
-sudo dpkg -i bat_0.18.2_amd64.deb  # измените архитектуру и версию
+sudo dpkg -i bat_0.18.3_amd64.deb  # измените архитектуру и версию
 ```

 ### Alpine Linux
@@ -341,7 +344,7 @@ ansible-galaxy install aeimer.install_bat

 ### Из исходников

-Если вы желаете установить `bat` из исходников, вам понадобится Rust 1.45 или выше. После этого используйте `cargo`, чтобы все скомпилировать:
+Если вы желаете установить `bat` из исходников, вам понадобится Rust 1.46 или выше. После этого используйте `cargo`, чтобы все скомпилировать:

 ```bash
 cargo install --locked bat
@@ -481,7 +484,7 @@ bat --generate-config-file
 # Использовать курсив (поддерживается не всеми терминалами)
 --italic-text=always

-# Использовать синтаксис C++ для всех .ino файлов
+# Использовать синтаксис C++ для всех Arduino .ino файлов
 --map-syntax "*.ino:C++"

 # Использовать синтаксик Git Ignore для всех файлов .ignore
--- a/doc/release-checklist.md
+++ b/doc/release-checklist.md
@@ -45,7 +45,7 @@ See this page for a good overview: https://deps.rs/repo/github/sharkdp/bat

 ## Release

- [ ] Create a tag and push it to the remote `git tag vX.Y.Z; git push --tags`.
+- [ ] Create a tag and push it: `git tag vX.Y.Z; git push origin tag vX.Y.Z`.
      This will trigger the deployment via GitHub Actions.
 - [ ] Go to https://github.com/sharkdp/bat/releases/new to create the new
      release. Select the new tag and also use it as the release title. For the
--- a/src/assets.rs
+++ b/src/assets.rs
@@ -1,10 +1,9 @@
 use std::ffi::OsStr;
 use std::fs;
-use std::path::{Path, PathBuf};
+use std::path::Path;

 use lazycell::LazyCell;

-use syntect::dumps::{from_binary, from_reader};
 use syntect::highlighting::{Theme, ThemeSet};
 use syntect::parsing::{SyntaxReference, SyntaxSet};

@@ -12,13 +11,30 @@ use path_abs::PathAbs;

 use crate::bat_warning;
 use crate::error::*;
-use crate::input::{InputReader, OpenedInput, OpenedInputKind};
+use crate::input::{InputReader, OpenedInput};
 use crate::syntax_mapping::{MappingTarget, SyntaxMapping};

+use ignored_suffixes::*;
+use minimal_assets::*;
+use serialized_syntax_set::*;
+
+#[cfg(feature = "build-assets")]
+pub use crate::assets::build_assets::*;
+
+pub(crate) mod assets_metadata;
+#[cfg(feature = "build-assets")]
+mod build_assets;
+mod ignored_suffixes;
+mod minimal_assets;
+mod serialized_syntax_set;
+
 #[derive(Debug)]
 pub struct HighlightingAssets {
    syntax_set_cell: LazyCell<SyntaxSet>,
-    serialized_syntax_set: Option<SerializedSyntaxSet>,
+    serialized_syntax_set: SerializedSyntaxSet,
+
+    minimal_assets: MinimalAssets,
+
    theme_set: ThemeSet,
    fallback_theme: Option<&'static str>,
 }
@@ -29,39 +45,33 @@ pub struct SyntaxReferenceInSet<'a> {
    pub syntax_set: &'a SyntaxSet,
 }

-const IGNORED_SUFFIXES: [&str; 10] = [
-    // Editor etc backups
-    "~",
-    ".bak",
-    ".old",
-    ".orig",
-    // Debian and derivatives apt/dpkg backups
-    ".dpkg-dist",
-    ".dpkg-old",
-    // Red Hat and derivatives rpm backups
-    ".rpmnew",
-    ".rpmorig",
-    ".rpmsave",
-    // Build system input/template files
-    ".in",
-];
+/// Compress for size of ~700 kB instead of ~4600 kB at the cost of ~30% longer deserialization time
+pub(crate) const COMPRESS_SYNTAXES: bool = true;
+
+/// Compress for size of ~20 kB instead of ~200 kB at the cost of ~30% longer deserialization time
+pub(crate) const COMPRESS_THEMES: bool = true;
+
+/// Compress for size of ~400 kB instead of ~2100 kB at the cost of ~30% longer deserialization time
+pub(crate) const COMPRESS_SERIALIZED_MINIMAL_SYNTAXES: bool = true;
+
+/// Whether or not to compress the serialized form of [MinimalSyntaxes]. Shall
+/// always be `false`, because the data in
+/// [MinimalSyntaxes.serialized_syntax_sets] has already been compressed
+/// (assuming [COMPRESS_SERIALIZED_MINIMAL_SYNTAXES] is `true`). The "outer" data
+/// structures like `by_name` are tiny. If we compress, deserialization can't do
+/// efficient byte-by-byte copy of `serialized_syntax_sets`.
+pub(crate) const COMPRESS_MINIMAL_SYNTAXES: bool = false;

 impl HighlightingAssets {
    fn new(
-        syntax_set: Option<SyntaxSet>,
-        serialized_syntax_set: Option<SerializedSyntaxSet>,
+        serialized_syntax_set: SerializedSyntaxSet,
+        minimal_syntaxes: MinimalSyntaxes,
        theme_set: ThemeSet,
    ) -> Self {
-        assert!(syntax_set.is_some() || serialized_syntax_set.is_some());
-
-        let syntax_set_cell = LazyCell::new();
-        if let Some(syntax_set) = syntax_set {
-            syntax_set_cell.fill(syntax_set).expect("can never fail");
-        }
-
        HighlightingAssets {
-            syntax_set_cell,
+            syntax_set_cell: LazyCell::new(),
            serialized_syntax_set,
+            minimal_assets: MinimalAssets::new(minimal_syntaxes),
            theme_set,
            fallback_theme: None,
        }
@@ -71,127 +81,33 @@ impl HighlightingAssets {
        "Monokai Extended"
    }

-    #[cfg(feature = "build-assets")]
-    pub fn from_files(source_dir: &Path, include_integrated_assets: bool) -> Result<Self> {
-        let mut theme_set = if include_integrated_assets {
-            get_integrated_themeset()
-        } else {
-            ThemeSet::new()
-        };
-
-        let theme_dir = source_dir.join("themes");
-        if theme_dir.exists() {
-            let res = theme_set.add_from_folder(&theme_dir);
-            if let Err(err) = res {
-                println!(
-                    "Failed to load one or more themes from '{}' (reason: '{}')",
-                    theme_dir.to_string_lossy(),
-                    err,
-                );
-            }
-        } else {
-            println!(
-                "No themes were found in '{}', using the default set",
-                theme_dir.to_string_lossy()
-            );
-        }
-
-        let mut syntax_set_builder = if !include_integrated_assets {
-            let mut builder = syntect::parsing::SyntaxSetBuilder::new();
-            builder.add_plain_text_syntax();
-            builder
-        } else {
-            from_binary::<SyntaxSet>(get_serialized_integrated_syntaxset()).into_builder()
-        };
-
-        let syntax_dir = source_dir.join("syntaxes");
-        if syntax_dir.exists() {
-            syntax_set_builder.add_from_folder(syntax_dir, true)?;
-        } else {
-            println!(
-                "No syntaxes were found in '{}', using the default set.",
-                syntax_dir.to_string_lossy()
-            );
-        }
-
-        if std::env::var("BAT_PRINT_SYNTAX_DEPENDENCIES").is_ok() {
-            // To trigger this code, run:
-            // BAT_PRINT_SYNTAX_DEPENDENCIES=1 cargo run -- cache --build --source assets --blank --target /tmp
-            crate::syntax_dependencies::print_syntax_dependencies(&syntax_set_builder);
-        }
-
-        let syntax_set = syntax_set_builder.build();
-        let missing_contexts = syntax_set.find_unlinked_contexts();
-        if !missing_contexts.is_empty() {
-            println!("Some referenced contexts could not be found!");
-            for context in missing_contexts {
-                println!("- {}", context);
-            }
-        }
-
-        Ok(HighlightingAssets::new(Some(syntax_set), None, theme_set))
-    }
-
    pub fn from_cache(cache_path: &Path) -> Result<Self> {
        Ok(HighlightingAssets::new(
-            None,
-            Some(SerializedSyntaxSet::FromFile(
-                cache_path.join("syntaxes.bin"),
-            )),
-            asset_from_cache(&cache_path.join("themes.bin"), "theme set")?,
+            SerializedSyntaxSet::FromFile(cache_path.join("syntaxes.bin")),
+            asset_from_cache(
+                &cache_path.join("minimal_syntaxes.bin"),
+                "minimal syntax sets",
+                COMPRESS_MINIMAL_SYNTAXES,
+            )?,
+            asset_from_cache(&cache_path.join("themes.bin"), "theme set", COMPRESS_THEMES)?,
        ))
    }

    pub fn from_binary() -> Self {
        HighlightingAssets::new(
-            None,
-            Some(SerializedSyntaxSet::FromBinary(
-                get_serialized_integrated_syntaxset(),
-            )),
+            SerializedSyntaxSet::FromBinary(get_serialized_integrated_syntaxset()),
+            get_integrated_minimal_syntaxes(),
            get_integrated_themeset(),
        )
    }

-    #[cfg(feature = "build-assets")]
-    pub fn save_to_cache(&self, target_dir: &Path, current_version: &str) -> Result<()> {
-        let _ = fs::create_dir_all(target_dir);
-        asset_to_cache(
-            self.get_theme_set(),
-            &target_dir.join("themes.bin"),
-            "theme set",
-        )?;
-        asset_to_cache(
-            self.get_syntax_set()?,
-            &target_dir.join("syntaxes.bin"),
-            "syntax set",
-        )?;
-
-        print!(
-            "Writing metadata to folder {} ... ",
-            target_dir.to_string_lossy()
-        );
-        crate::assets_metadata::AssetsMetadata::new(current_version).save_to_folder(target_dir)?;
-        println!("okay");
-
-        Ok(())
-    }
-
    pub fn set_fallback_theme(&mut self, theme: &'static str) {
        self.fallback_theme = Some(theme);
    }

    pub(crate) fn get_syntax_set(&self) -> Result<&SyntaxSet> {
-        if !self.syntax_set_cell.filled() {
-            self.syntax_set_cell.fill(
-                self.serialized_syntax_set
-                .as_ref()
-                .expect("a dev forgot to setup serialized_syntax_set, please report to https://github.com/sharkdp/bat/issues")
-                .deserialize()?
-             ).unwrap();
-        }
-
-        // It is safe to .unwrap() because we just made sure it was .filled()
-        Ok(self.syntax_set_cell.borrow().unwrap())
+        self.syntax_set_cell
+            .try_borrow_with(|| self.serialized_syntax_set.deserialize())
    }

    /// Use [Self::get_syntaxes] instead
@@ -214,36 +130,68 @@ impl HighlightingAssets {
        self.get_theme_set().themes.keys().map(|s| s.as_ref())
    }

-    /// Use [Self::get_syntax_for_file_name] instead
+    /// Finds a [SyntaxSet] that contains a [SyntaxReference] by its name. First
+    /// tries to find a minimal [SyntaxSet]. If none is found, returns the
+    /// [SyntaxSet] that contains all syntaxes.
+    fn get_syntax_set_by_name(&self, name: &str) -> Result<&SyntaxSet> {
+        match self.minimal_assets.get_syntax_set_by_name(name) {
+            Some(syntax_set) => Ok(syntax_set),
+            None => self.get_syntax_set(),
+        }
+    }
+
+    /// Use [Self::get_syntax_for_path] instead
    #[deprecated]
    pub fn syntax_for_file_name(
        &self,
        file_name: impl AsRef<Path>,
        mapping: &SyntaxMapping,
    ) -> Option<&SyntaxReference> {
-        self.get_syntax_for_file_name(file_name, mapping)
-            .expect(
-                ".syntax_for_file_name() is deprecated, use .get_syntax_for_file_name() instead",
-            )
+        self.get_syntax_for_path(file_name, mapping)
+            .ok()
            .map(|syntax_in_set| syntax_in_set.syntax)
    }

-    pub fn get_syntax_for_file_name(
+    /// Detect the syntax based on, in order:
+    ///  1. Syntax mappings (e.g. `/etc/profile` -> `Bourne Again Shell (bash)`)
+    ///  2. The file name (e.g. `Dockerfile`)
+    ///  3. The file name extension (e.g. `.rs`)
+    ///
+    /// When detecting syntax based on syntax mappings, the full path is taken
+    /// into account. When detecting syntax based on file name, no regard is
+    /// taken to the path of the file. Only the file name itself matters. When
+    /// detecting syntax based on file name extension, only the file name
+    /// extension itself matters.
+    ///
+    /// Returns [Error::UndetectedSyntax] if it was not possible detect syntax
+    /// based on path/file name/extension (or if the path was mapped to
+    /// [MappingTarget::MapToUnknown]). In this case it is appropriate to fall
+    /// back to other methods to detect syntax. Such as using the contents of
+    /// the first line of the file.
+    ///
+    /// Returns [Error::UnknownSyntax] if a syntax mapping exist, but the mapped
+    /// syntax does not exist.
+    pub fn get_syntax_for_path(
        &self,
-        file_name: impl AsRef<Path>,
+        path: impl AsRef<Path>,
        mapping: &SyntaxMapping,
-    ) -> Result<Option<SyntaxReferenceInSet>> {
-        let file_name = file_name.as_ref();
-        Ok(match mapping.get_syntax_for(file_name) {
-            Some(MappingTarget::MapToUnknown) => None,
-            Some(MappingTarget::MapTo(syntax_name)) => {
-                let syntax_set = self.get_syntax_set()?;
-                syntax_set
-                    .find_syntax_by_name(syntax_name)
-                    .map(|syntax| SyntaxReferenceInSet { syntax, syntax_set })
+    ) -> Result<SyntaxReferenceInSet> {
+        let path = path.as_ref();
+        match mapping.get_syntax_for(path) {
+            Some(MappingTarget::MapToUnknown) => {
+                Err(Error::UndetectedSyntax(path.to_string_lossy().into()))
            }
-            None => self.get_extension_syntax(file_name.as_os_str())?,
-        })
+
+            Some(MappingTarget::MapTo(syntax_name)) => self
+                .find_syntax_by_name(syntax_name)?
+                .ok_or_else(|| Error::UnknownSyntax(syntax_name.to_owned())),
+
+            None => {
+                let file_name = path.file_name().unwrap_or_default();
+                self.get_extension_syntax(file_name)?
+                    .ok_or_else(|| Error::UndetectedSyntax(path.to_string_lossy().into()))
+            }
+        }
    }

    pub(crate) fn get_theme(&self, theme: &str) -> &Theme {
@@ -270,113 +218,60 @@ impl HighlightingAssets {
        mapping: &SyntaxMapping,
    ) -> Result<SyntaxReferenceInSet> {
        if let Some(language) = language {
-            let syntax_set = self.get_syntax_set()?;
-            syntax_set
+            let syntax_set = self.get_syntax_set_by_name(language)?;
+            return syntax_set
                .find_syntax_by_token(language)
                .map(|syntax| SyntaxReferenceInSet { syntax, syntax_set })
-                .ok_or_else(|| ErrorKind::UnknownSyntax(language.to_owned()).into())
-        } else {
-            let line_syntax = self.get_first_line_syntax(&mut input.reader)?;
-
-            // Get the path of the file:
-            // If this was set by the metadata, that will take priority.
-            // If it wasn't, it will use the real file path (if available).
-            let path_str =
-                input
-                    .metadata
-                    .user_provided_name
-                    .as_ref()
-                    .or_else(|| match input.kind {
-                        OpenedInputKind::OrdinaryFile(ref path) => Some(path),
-                        _ => None,
-                    });
-
-            if let Some(path_str) = path_str {
-                // If a path was provided, we try and detect the syntax based on extension mappings.
-                let path = Path::new(path_str);
-                let absolute_path = PathAbs::new(path)
-                    .ok()
-                    .map(|p| p.as_path().to_path_buf())
-                    .unwrap_or_else(|| path.to_owned());
-
-                match mapping.get_syntax_for(absolute_path) {
-                    Some(MappingTarget::MapToUnknown) => line_syntax.ok_or_else(|| {
-                        ErrorKind::UndetectedSyntax(path.to_string_lossy().into()).into()
-                    }),
-
-                    Some(MappingTarget::MapTo(syntax_name)) => {
-                        let syntax_set = self.get_syntax_set()?;
-                        syntax_set
-                            .find_syntax_by_name(syntax_name)
-                            .map(|syntax| SyntaxReferenceInSet { syntax, syntax_set })
-                            .ok_or_else(|| ErrorKind::UnknownSyntax(syntax_name.to_owned()).into())
-                    }
-
-                    None => {
-                        let file_name = path.file_name().unwrap_or_default();
-                        self.get_extension_syntax(file_name)?
-                            .or(line_syntax)
-                            .ok_or_else(|| {
-                                ErrorKind::UndetectedSyntax(path.to_string_lossy().into()).into()
-                            })
-                    }
-                }
-            } else {
-                // If a path wasn't provided, we fall back to the detect first-line syntax.
-                line_syntax.ok_or_else(|| ErrorKind::UndetectedSyntax("[unknown]".into()).into())
-            }
+                .ok_or_else(|| Error::UnknownSyntax(language.to_owned()));
        }
+
+        let path = input.path();
+        let path_syntax = if let Some(path) = path {
+            self.get_syntax_for_path(
+                PathAbs::new(path).map_or_else(|_| path.to_owned(), |p| p.as_path().to_path_buf()),
+                mapping,
+            )
+        } else {
+            Err(Error::UndetectedSyntax("[unknown]".into()))
+        };
+
+        match path_syntax {
+            // If a path wasn't provided, or if path based syntax detection
+            // above failed, we fall back to first-line syntax detection.
+            Err(Error::UndetectedSyntax(path)) => self
+                .get_first_line_syntax(&mut input.reader)?
+                .ok_or(Error::UndetectedSyntax(path)),
+            _ => path_syntax,
+        }
+    }
+
+    pub(crate) fn find_syntax_by_name(
+        &self,
+        syntax_name: &str,
+    ) -> Result<Option<SyntaxReferenceInSet>> {
+        let syntax_set = self.get_syntax_set()?;
+        Ok(syntax_set
+            .find_syntax_by_name(syntax_name)
+            .map(|syntax| SyntaxReferenceInSet { syntax, syntax_set }))
+    }
+
+    fn find_syntax_by_extension(&self, e: Option<&OsStr>) -> Result<Option<SyntaxReferenceInSet>> {
+        let syntax_set = self.get_syntax_set()?;
+        let extension = e.and_then(|x| x.to_str()).unwrap_or_default();
+        Ok(syntax_set
+            .find_syntax_by_extension(extension)
+            .map(|syntax| SyntaxReferenceInSet { syntax, syntax_set }))
    }

    fn get_extension_syntax(&self, file_name: &OsStr) -> Result<Option<SyntaxReferenceInSet>> {
-        let mut syntax = self.find_syntax_by_file_name(file_name)?;
+        let mut syntax = self.find_syntax_by_extension(Some(file_name))?;
        if syntax.is_none() {
-            syntax = self.find_syntax_by_file_name_extension(file_name)?;
+            syntax = self.find_syntax_by_extension(Path::new(file_name).extension())?;
        }
        if syntax.is_none() {
-            syntax = self.get_extension_syntax_with_stripped_suffix(file_name)?;
-        }
-        Ok(syntax)
-    }
-
-    fn find_syntax_by_file_name(&self, file_name: &OsStr) -> Result<Option<SyntaxReferenceInSet>> {
-        let syntax_set = self.get_syntax_set()?;
-        Ok(syntax_set
-            .find_syntax_by_extension(file_name.to_str().unwrap_or_default())
-            .map(|syntax| SyntaxReferenceInSet { syntax, syntax_set }))
-    }
-
-    fn find_syntax_by_file_name_extension(
-        &self,
-        file_name: &OsStr,
-    ) -> Result<Option<SyntaxReferenceInSet>> {
-        let file_path = Path::new(file_name);
-        let syntax_set = self.get_syntax_set()?;
-        Ok(syntax_set
-            .find_syntax_by_extension(
-                file_path
-                    .extension()
-                    .and_then(|x| x.to_str())
-                    .unwrap_or_default(),
-            )
-            .map(|syntax| SyntaxReferenceInSet { syntax, syntax_set }))
-    }
-
-    /// If we find an ignored suffix on the file name, e.g. '~', we strip it and
-    /// then try again to find a syntax without it. Note that we do this recursively.
-    fn get_extension_syntax_with_stripped_suffix(
-        &self,
-        file_name: &OsStr,
-    ) -> Result<Option<SyntaxReferenceInSet>> {
-        let file_path = Path::new(file_name);
-        let mut syntax = None;
-        if let Some(file_str) = file_path.to_str() {
-            for suffix in IGNORED_SUFFIXES.iter() {
-                if let Some(stripped_filename) = file_str.strip_suffix(suffix) {
-                    syntax = self.get_extension_syntax(OsStr::new(stripped_filename))?;
-                    break;
-                }
-            }
+            syntax = try_with_stripped_suffix(file_name, |stripped_file_name| {
+                self.get_extension_syntax(stripped_file_name) // Note: recursion
+            })?;
        }
        Ok(syntax)
    }
@@ -393,57 +288,53 @@ impl HighlightingAssets {
    }
 }

-/// A SyntaxSet in serialized form, i.e. bincoded and flate2 compressed.
-/// We keep it in this format since we want to load it lazily.
-#[derive(Debug)]
-enum SerializedSyntaxSet {
-    /// The data comes from a user-generated cache file.
-    FromFile(PathBuf),
-
-    /// The data to use is embedded into the bat binary.
-    FromBinary(&'static [u8]),
-}
-
-impl SerializedSyntaxSet {
-    fn deserialize(&self) -> Result<SyntaxSet> {
-        match self {
-            SerializedSyntaxSet::FromBinary(data) => Ok(from_binary(data)),
-            SerializedSyntaxSet::FromFile(ref path) => asset_from_cache(path, "syntax set"),
-        }
-    }
-}
-
-fn get_serialized_integrated_syntaxset() -> &'static [u8] {
+pub(crate) fn get_serialized_integrated_syntaxset() -> &'static [u8] {
    include_bytes!("../assets/syntaxes.bin")
 }

-fn get_integrated_themeset() -> ThemeSet {
-    from_binary(include_bytes!("../assets/themes.bin"))
+pub(crate) fn get_integrated_themeset() -> ThemeSet {
+    from_binary(include_bytes!("../assets/themes.bin"), COMPRESS_THEMES)
 }

-#[cfg(feature = "build-assets")]
-fn asset_to_cache<T: serde::Serialize>(asset: &T, path: &Path, description: &str) -> Result<()> {
-    print!("Writing {} to {} ... ", description, path.to_string_lossy());
-    syntect::dumps::dump_to_file(asset, &path).chain_err(|| {
-        format!(
-            "Could not save {} to {}",
-            description,
-            path.to_string_lossy()
-        )
-    })?;
-    println!("okay");
-    Ok(())
+fn get_integrated_minimal_syntaxes() -> MinimalSyntaxes {
+    from_binary(
+        include_bytes!("../assets/minimal_syntaxes.bin"),
+        COMPRESS_MINIMAL_SYNTAXES,
+    )
 }

-fn asset_from_cache<T: serde::de::DeserializeOwned>(path: &Path, description: &str) -> Result<T> {
-    let contents = fs::read(path).chain_err(|| {
+pub(crate) fn from_binary<T: serde::de::DeserializeOwned>(v: &[u8], compressed: bool) -> T {
+    asset_from_contents(v, "n/a", compressed)
+        .expect("data integrated in binary is never faulty, but make sure `compressed` is in sync!")
+}
+
+fn asset_from_contents<T: serde::de::DeserializeOwned>(
+    contents: &[u8],
+    description: &str,
+    compressed: bool,
+) -> Result<T> {
+    if compressed {
+        bincode::deserialize_from(flate2::read::ZlibDecoder::new(contents))
+    } else {
+        bincode::deserialize_from(contents)
+    }
+    .map_err(|_| format!("Could not parse {}", description).into())
+}
+
+fn asset_from_cache<T: serde::de::DeserializeOwned>(
+    path: &Path,
+    description: &str,
+    compressed: bool,
+) -> Result<T> {
+    let contents = fs::read(path).map_err(|_| {
        format!(
            "Could not load cached {} '{}'",
            description,
            path.to_string_lossy()
        )
    })?;
-    from_reader(&contents[..]).chain_err(|| format!("Could not parse cached {}", description))
+    asset_from_contents(&contents[..], description, compressed)
+        .map_err(|_| format!("Could not parse cached {}", description).into())
 }

 #[cfg(test)]
--- a/src/assets/assets_metadata.rs
+++ b/src/assets/assets_metadata.rs
@@ -52,16 +52,15 @@ impl AssetsMetadata {
    pub fn load_from_folder(path: &Path) -> Result<Option<Self>> {
        match Self::try_load_from_folder(path) {
            Ok(metadata) => Ok(Some(metadata)),
-            Err(e) => match e.kind() {
-                ErrorKind::SerdeYamlError(_) => Err(e),
-                _ => {
-                    if path.join("syntaxes.bin").exists() || path.join("themes.bin").exists() {
-                        Ok(Some(Self::default()))
-                    } else {
-                        Ok(None)
-                    }
+            Err(e) => {
+                if let Error::SerdeYamlError(_) = e {
+                    Err(e)
+                } else if path.join("syntaxes.bin").exists() || path.join("themes.bin").exists() {
+                    Ok(Some(Self::default()))
+                } else {
+                    Ok(None)
                }
-            },
+            }
        }
    }

--- a/src/assets/build_assets.rs
+++ b/src/assets/build_assets.rs
@@ -0,0 +1,500 @@
+use std::collections::HashMap;
+use std::path::Path;
+use syntect::highlighting::ThemeSet;
+use syntect::parsing::syntax_definition::{
+    ContextReference, MatchOperation, MatchPattern, Pattern, SyntaxDefinition,
+};
+use syntect::parsing::{Scope, SyntaxSet, SyntaxSetBuilder};
+
+use crate::assets::*;
+
+mod graphviz_utils;
+
+type SyntaxName = String;
+
+/// Used to look up which [SyntaxDefinition] corresponds to a given [OtherSyntax]
+type OtherSyntaxLookup<'a> = HashMap<OtherSyntax, &'a SyntaxDefinition>;
+
+/// Used to look up what dependencies a given [SyntaxDefinition] has
+type SyntaxToDependencies = HashMap<SyntaxName, Vec<OtherSyntax>>;
+
+/// Used to look up what other [SyntaxDefinition]s depend on a given [SyntaxDefinition]
+type SyntaxToDependents<'a> = HashMap<SyntaxName, Vec<OtherSyntax>>;
+
+/// Represents some other `*.sublime-syntax` file, i.e. another [SyntaxDefinition].
+#[derive(Debug, Eq, PartialEq, PartialOrd, Ord, Clone, Hash)]
+pub(crate) enum OtherSyntax {
+    /// By name. Example YAML: `include: C.sublime-syntax` (name is `"C"`)
+    ByName(String),
+
+    /// By scope. Example YAML: `embed: scope:source.c` (scope is `"source.c"`)
+    ByScope(Scope),
+}
+
+pub fn build(
+    source_dir: &Path,
+    include_integrated_assets: bool,
+    target_dir: &Path,
+    current_version: &str,
+) -> Result<()> {
+    let theme_set = build_theme_set(source_dir, include_integrated_assets);
+
+    let syntax_set_builder = build_syntax_set_builder(source_dir, include_integrated_assets)?;
+
+    let minimal_syntaxes = build_minimal_syntaxes(&syntax_set_builder, include_integrated_assets)?;
+
+    let syntax_set = syntax_set_builder.build();
+
+    print_unlinked_contexts(&syntax_set);
+
+    write_assets(
+        &theme_set,
+        &syntax_set,
+        &minimal_syntaxes,
+        target_dir,
+        current_version,
+    )
+}
+
+fn build_theme_set(source_dir: &Path, include_integrated_assets: bool) -> ThemeSet {
+    let mut theme_set = if include_integrated_assets {
+        crate::assets::get_integrated_themeset()
+    } else {
+        ThemeSet::new()
+    };
+
+    let theme_dir = source_dir.join("themes");
+    if theme_dir.exists() {
+        let res = theme_set.add_from_folder(&theme_dir);
+        if let Err(err) = res {
+            println!(
+                "Failed to load one or more themes from '{}' (reason: '{}')",
+                theme_dir.to_string_lossy(),
+                err,
+            );
+        }
+    } else {
+        println!(
+            "No themes were found in '{}', using the default set",
+            theme_dir.to_string_lossy()
+        );
+    }
+
+    theme_set
+}
+
+fn build_syntax_set_builder(
+    source_dir: &Path,
+    include_integrated_assets: bool,
+) -> Result<SyntaxSetBuilder> {
+    let mut syntax_set_builder = if !include_integrated_assets {
+        let mut builder = syntect::parsing::SyntaxSetBuilder::new();
+        builder.add_plain_text_syntax();
+        builder
+    } else {
+        from_binary::<SyntaxSet>(get_serialized_integrated_syntaxset(), COMPRESS_SYNTAXES)
+            .into_builder()
+    };
+
+    let syntax_dir = source_dir.join("syntaxes");
+    if syntax_dir.exists() {
+        syntax_set_builder.add_from_folder(syntax_dir, true)?;
+    } else {
+        println!(
+            "No syntaxes were found in '{}', using the default set.",
+            syntax_dir.to_string_lossy()
+        );
+    }
+
+    Ok(syntax_set_builder)
+}
+
+fn print_unlinked_contexts(syntax_set: &SyntaxSet) {
+    let missing_contexts = syntax_set.find_unlinked_contexts();
+    if !missing_contexts.is_empty() {
+        println!("Some referenced contexts could not be found!");
+        for context in missing_contexts {
+            println!("- {}", context);
+        }
+    }
+}
+
+fn write_assets(
+    theme_set: &ThemeSet,
+    syntax_set: &SyntaxSet,
+    minimal_syntaxes: &MinimalSyntaxes,
+    target_dir: &Path,
+    current_version: &str,
+) -> Result<()> {
+    let _ = std::fs::create_dir_all(target_dir);
+    asset_to_cache(
+        theme_set,
+        &target_dir.join("themes.bin"),
+        "theme set",
+        COMPRESS_THEMES,
+    )?;
+    asset_to_cache(
+        syntax_set,
+        &target_dir.join("syntaxes.bin"),
+        "syntax set",
+        COMPRESS_SYNTAXES,
+    )?;
+    asset_to_cache(
+        minimal_syntaxes,
+        &target_dir.join("minimal_syntaxes.bin"),
+        "minimal syntax sets",
+        COMPRESS_MINIMAL_SYNTAXES,
+    )?;
+
+    print!(
+        "Writing metadata to folder {} ... ",
+        target_dir.to_string_lossy()
+    );
+    crate::assets_metadata::AssetsMetadata::new(current_version).save_to_folder(target_dir)?;
+    println!("okay");
+
+    Ok(())
+}
+
+fn print_syntax_set_names(syntax_set: &SyntaxSet) {
+    let names = syntax_set
+        .syntaxes()
+        .iter()
+        .map(|syntax| &syntax.name)
+        .collect::<Vec<_>>();
+    println!("{:?}", names);
+}
+
+fn build_minimal_syntaxes(
+    syntax_set_builder: &'_ SyntaxSetBuilder,
+    include_integrated_assets: bool,
+) -> Result<MinimalSyntaxes> {
+    let mut minimal_syntaxes = MinimalSyntaxes {
+        by_name: HashMap::new(),
+        serialized_syntax_sets: vec![],
+    };
+
+    if include_integrated_assets {
+        // Dependency info is not present in integrated assets, so we can't
+        // calculate minimal syntax sets. Return early without any data filled
+        // in. This means that no minimal syntax sets will be available to use, and
+        // the full, slow-to-deserialize, fallback syntax set will be used instead.
+        return Ok(minimal_syntaxes);
+    }
+
+    let minimal_syntax_sets_to_serialize = build_minimal_syntax_sets(syntax_set_builder)
+        // For now, only store syntax sets with one syntax, otherwise
+        // the binary grows by several megs
+        .filter(|syntax_set| syntax_set.syntaxes().len() == 1);
+
+    for minimal_syntax_set in minimal_syntax_sets_to_serialize {
+        // Remember what index it is found at
+        let current_index = minimal_syntaxes.serialized_syntax_sets.len();
+
+        for syntax in minimal_syntax_set.syntaxes() {
+            minimal_syntaxes
+                .by_name
+                .insert(syntax.name.to_ascii_lowercase().clone(), current_index);
+        }
+
+        let serialized_syntax_set = asset_to_contents(
+            &minimal_syntax_set,
+            &format!("failed to serialize minimal syntax set {}", current_index),
+            COMPRESS_SERIALIZED_MINIMAL_SYNTAXES,
+        )?;
+
+        // Add last so that it ends up at `current_index`
+        minimal_syntaxes
+            .serialized_syntax_sets
+            .push(serialized_syntax_set);
+    }
+
+    Ok(minimal_syntaxes)
+}
+
+/// Analyzes dependencies between syntaxes in a [SyntaxSetBuilder].
+/// From that, it builds minimal [SyntaxSet]s.
+fn build_minimal_syntax_sets(
+    syntax_set_builder: &'_ SyntaxSetBuilder,
+) -> impl Iterator<Item = SyntaxSet> + '_ {
+    let syntaxes = syntax_set_builder.syntaxes();
+
+    // Build the data structures we need for dependency resolution
+    let (other_syntax_lookup, syntax_to_dependencies, syntax_to_dependents) =
+        generate_maps(syntaxes);
+
+    maybe_write_syntax_dependencies_to_graphviz_dot_file(
+        &other_syntax_lookup,
+        &syntax_to_dependencies,
+    );
+
+    // Create one minimal SyntaxSet from each (non-hidden) SyntaxDefinition
+    syntaxes.iter().filter_map(move |syntax| {
+        if syntax.hidden {
+            return None;
+        }
+
+        let mut builder = SyntaxSetDependencyBuilder::new();
+        builder.add_with_dependencies(
+            syntax,
+            &other_syntax_lookup,
+            &syntax_to_dependencies,
+            &syntax_to_dependents,
+        );
+        let syntax_set = builder.build();
+
+        if std::env::var("BAT_PRINT_SYNTAX_DEPENDENCIES").is_ok() {
+            // To trigger this code, run:
+            // BAT_PRINT_SYNTAX_DEPENDENCIES=1 cargo run -- cache --build --source assets --blank --target /tmp
+            print_syntax_set_names(&syntax_set);
+        }
+
+        Some(syntax_set)
+    })
+}
+
+/// In order to analyze dependencies, we need three key pieces of data.
+///
+///  * When we have a [OtherSyntax], we need to know what [SyntaxDefinition]
+///    that corresponds to
+///  * When we have a [SyntaxDefinition], we need to know what dependencies it
+///    has
+///  * When we have a [SyntaxDefinition], we need to know what other syntaxes
+///    depend on it
+///
+/// This functions generates that data for each syntax.
+fn generate_maps(
+    syntaxes: &[SyntaxDefinition],
+) -> (OtherSyntaxLookup, SyntaxToDependencies, SyntaxToDependents) {
+    let mut other_syntax_lookup = HashMap::new();
+    let mut syntax_to_dependencies = HashMap::new();
+    let mut syntax_to_dependents = HashMap::new();
+
+    for syntax in syntaxes {
+        other_syntax_lookup.insert(OtherSyntax::ByName(syntax.name.clone()), syntax);
+        other_syntax_lookup.insert(OtherSyntax::ByScope(syntax.scope), syntax);
+    }
+
+    for syntax in syntaxes {
+        let dependencies = dependencies_for_syntax(syntax);
+
+        for dependency in &dependencies {
+            if let Some(dependency) = other_syntax_lookup.get(dependency) {
+                syntax_to_dependents
+                    .entry(dependency.name.clone())
+                    .or_insert_with(Vec::new)
+                    .push(OtherSyntax::ByName(syntax.name.clone()));
+            }
+        }
+
+        syntax_to_dependencies.insert(syntax.name.clone(), dependencies);
+    }
+
+    (
+        other_syntax_lookup,
+        syntax_to_dependencies,
+        syntax_to_dependents,
+    )
+}
+
+/// Gets what external dependencies a given [SyntaxDefinition] has.
+/// An external dependency is another `.sublime-syntax` file.
+/// It does that by looking for variants of the following YAML patterns:
+/// - `include: C.sublime-syntax`
+/// - `embed: scope:source.c`
+fn dependencies_for_syntax(syntax: &SyntaxDefinition) -> Vec<OtherSyntax> {
+    let mut dependencies: Vec<OtherSyntax> = syntax
+        .contexts
+        .values()
+        .flat_map(|context| &context.patterns)
+        .flat_map(dependencies_from_pattern)
+        .collect();
+
+    // No need to track a dependency more than once
+    dependencies.sort();
+    dependencies.dedup();
+
+    dependencies
+}
+
+fn dependencies_from_pattern(pattern: &Pattern) -> Vec<OtherSyntax> {
+    match *pattern {
+        Pattern::Match(MatchPattern {
+            operation: MatchOperation::Push(ref context_references),
+            ..
+        }) => context_references
+            .iter()
+            .map(dependency_from_context_reference)
+            .collect(),
+        Pattern::Include(ref context_reference) => {
+            vec![dependency_from_context_reference(context_reference)]
+        }
+        _ => vec![],
+    }
+    .into_iter()
+    .flatten()
+    .collect()
+}
+
+/// To generate a Graphviz dot file of syntax dependencies, do this:
+/// ```bash
+/// sudo apt install graphviz
+/// BAT_SYNTAX_DEPENDENCIES_TO_GRAPHVIZ_DOT_FILE=/tmp/bat-syntax-dependencies.dot cargo run -- cache  --build --source assets --blank --target /tmp
+/// dot /tmp/bat-syntax-dependencies.dot -Tpng -o /tmp/bat-syntax-dependencies.png
+/// open /tmp/bat-syntax-dependencies.png
+/// ```
+fn maybe_write_syntax_dependencies_to_graphviz_dot_file(
+    other_syntax_lookup: &OtherSyntaxLookup,
+    syntax_to_dependencies: &SyntaxToDependencies,
+) {
+    if let Ok(dot_file_path) = std::env::var("BAT_SYNTAX_DEPENDENCIES_TO_GRAPHVIZ_DOT_FILE") {
+        graphviz_utils::try_syntax_dependencies_to_graphviz_dot_file(
+            other_syntax_lookup,
+            syntax_to_dependencies,
+            &dot_file_path,
+        );
+    }
+}
+
+/// Removes any context name from the syntax reference.
+///
+/// When we track dependencies between syntaxes, we are not interested in
+/// dependencies on specific contexts inside other syntaxes. We only care about
+/// the dependency on the syntax itself.
+///
+/// For example, if a syntax includes another syntax like this:
+/// ```yaml
+///   - include: scope:source.c++#unique-variables
+/// ```
+/// we only want to track the dependency on `source.c++`.
+fn remove_explicit_context(scope: Scope) -> Scope {
+    if let Some(without_context) = scope.build_string().split('#').next() {
+        Scope::new(without_context).expect("removing context reference must never fail")
+    } else {
+        scope
+    }
+}
+
+fn dependency_from_context_reference(context_reference: &ContextReference) -> Option<OtherSyntax> {
+    match &context_reference {
+        ContextReference::File { ref name, .. } => Some(OtherSyntax::ByName(name.clone())),
+        ContextReference::ByScope { ref scope, .. } => {
+            Some(OtherSyntax::ByScope(remove_explicit_context(*scope)))
+        }
+        _ => None,
+    }
+}
+
+/// Helper to construct a [SyntaxSetBuilder] that contains only [SyntaxDefinition]s
+/// that have dependencies among them.
+struct SyntaxSetDependencyBuilder {
+    syntax_set_builder: SyntaxSetBuilder,
+}
+
+impl SyntaxSetDependencyBuilder {
+    fn new() -> Self {
+        SyntaxSetDependencyBuilder {
+            syntax_set_builder: SyntaxSetBuilder::new(),
+        }
+    }
+
+    /// Add a [SyntaxDefinition] to the underlying [SyntaxSetBuilder].
+    /// Also resolve any dependencies it has and add those [SyntaxDefinition]s too.
+    /// This is a recursive process.
+    fn add_with_dependencies(
+        &mut self,
+        syntax: &SyntaxDefinition,
+        other_syntax_lookup: &OtherSyntaxLookup,
+        syntax_to_dependencies: &SyntaxToDependencies,
+        syntax_to_dependents: &SyntaxToDependents,
+    ) {
+        let name = &syntax.name;
+        if self.is_syntax_already_added(name) {
+            return;
+        }
+
+        self.syntax_set_builder.add(syntax.clone());
+
+        let mut syntaxes_to_add = vec![];
+        if let Some(dependencies) = syntax_to_dependencies.get(name) {
+            syntaxes_to_add.extend(dependencies);
+        }
+        if let Some(dependents) = syntax_to_dependents.get(name) {
+            // This will later be enabled intelligently
+            if std::env::var("BAT_INCLUDE_SYNTAX_DEPENDENTS").is_ok() {
+                syntaxes_to_add.extend(dependents);
+            }
+        }
+        for syntax_to_add in syntaxes_to_add {
+            if let Some(syntax_to_add) = other_syntax_lookup.get(syntax_to_add) {
+                self.add_with_dependencies(
+                    syntax_to_add,
+                    other_syntax_lookup,
+                    syntax_to_dependencies,
+                    syntax_to_dependents,
+                )
+            }
+        }
+    }
+
+    fn is_syntax_already_added(&self, name: &str) -> bool {
+        self.syntax_set_builder
+            .syntaxes()
+            .iter()
+            .any(|syntax| syntax.name == name)
+    }
+
+    fn build(self) -> SyntaxSet {
+        self.syntax_set_builder.build()
+    }
+}
+
+fn asset_to_contents<T: serde::Serialize>(
+    asset: &T,
+    description: &str,
+    compressed: bool,
+) -> Result<Vec<u8>> {
+    let mut contents = vec![];
+    if compressed {
+        bincode::serialize_into(
+            flate2::write::ZlibEncoder::new(&mut contents, flate2::Compression::best()),
+            asset,
+        )
+    } else {
+        bincode::serialize_into(&mut contents, asset)
+    }
+    .map_err(|_| format!("Could not serialize {}", description))?;
+    Ok(contents)
+}
+
+fn asset_to_cache<T: serde::Serialize>(
+    asset: &T,
+    path: &Path,
+    description: &str,
+    compressed: bool,
+) -> Result<()> {
+    print!("Writing {} to {} ... ", description, path.to_string_lossy());
+    let contents = asset_to_contents(asset, description, compressed)?;
+    std::fs::write(path, &contents[..]).map_err(|_| {
+        format!(
+            "Could not save {} to {}",
+            description,
+            path.to_string_lossy()
+        )
+    })?;
+    println!("okay");
+    Ok(())
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn remove_explicit_context_sanity() {
+        // Example from Objective-C++.sublime-syntax
+        let scope = Scope::new("source.c++#unique-variables").unwrap();
+        let expected = Scope::new("source.c++").unwrap();
+        assert_eq!(remove_explicit_context(scope), expected);
+    }
+}
--- a/src/assets/build_assets/graphviz_utils.rs
+++ b/src/assets/build_assets/graphviz_utils.rs
@@ -0,0 +1,41 @@
+use super::*;
+
+pub(crate) fn try_syntax_dependencies_to_graphviz_dot_file(
+    other_syntax_lookup: &OtherSyntaxLookup,
+    syntax_to_dependencies: &SyntaxToDependencies,
+    dot_file_path: &str,
+) {
+    match syntax_dependencies_to_graphviz_dot_file(
+        other_syntax_lookup,
+        syntax_to_dependencies,
+        dot_file_path,
+    ) {
+        Ok(_) => println!("Wrote graphviz dot file to {}", dot_file_path),
+        Err(e) => eprintln!(
+            "Failed to write graphviz dot file to {}: {}",
+            dot_file_path, e
+        ),
+    };
+}
+
+fn syntax_dependencies_to_graphviz_dot_file(
+    other_syntax_lookup: &OtherSyntaxLookup,
+    syntax_to_dependencies: &SyntaxToDependencies,
+    dot_file_path: &str,
+) -> Result<()> {
+    use std::io::Write;
+
+    let mut dot_file = std::fs::File::create(dot_file_path)?;
+
+    writeln!(dot_file, "digraph BatSyntaxDependencies {{")?;
+    for (key, dependencies) in syntax_to_dependencies {
+        for dependency in dependencies {
+            if let Some(dep) = other_syntax_lookup.get(dependency) {
+                writeln!(dot_file, "    \"{}\" -> \"{}\"", key, dep.name)?;
+            }
+        }
+    }
+    writeln!(dot_file, "}}")?;
+
+    Ok(())
+}
--- a/src/assets/ignored_suffixes.rs
+++ b/src/assets/ignored_suffixes.rs
@@ -0,0 +1,42 @@
+use std::ffi::OsStr;
+use std::path::Path;
+
+use crate::error::*;
+
+const IGNORED_SUFFIXES: [&str; 13] = [
+    // Editor etc backups
+    "~",
+    ".bak",
+    ".old",
+    ".orig",
+    // Debian and derivatives apt/dpkg/ucf backups
+    ".dpkg-dist",
+    ".dpkg-old",
+    ".ucf-dist",
+    ".ucf-new",
+    ".ucf-old",
+    // Red Hat and derivatives rpm backups
+    ".rpmnew",
+    ".rpmorig",
+    ".rpmsave",
+    // Build system input/template files
+    ".in",
+];
+
+/// If we find an ignored suffix on the file name, e.g. '~', we strip it and
+/// then try again without it.
+pub fn try_with_stripped_suffix<T, F>(file_name: &OsStr, func: F) -> Result<Option<T>>
+where
+    F: Fn(&OsStr) -> Result<Option<T>>,
+{
+    let mut from_stripped = None;
+    if let Some(file_str) = Path::new(file_name).to_str() {
+        for suffix in &IGNORED_SUFFIXES {
+            if let Some(stripped_filename) = file_str.strip_suffix(suffix) {
+                from_stripped = func(OsStr::new(stripped_filename))?;
+                break;
+            }
+        }
+    }
+    Ok(from_stripped)
+}
--- a/src/assets/minimal_assets.rs
+++ b/src/assets/minimal_assets.rs
@@ -0,0 +1,72 @@
+use std::collections::HashMap;
+
+use lazycell::LazyCell;
+
+use syntect::parsing::SyntaxSet;
+
+use super::*;
+
+#[derive(Debug)]
+pub(crate) struct MinimalAssets {
+    minimal_syntaxes: MinimalSyntaxes,
+
+    /// Lazily load serialized [SyntaxSet]s from [Self.minimal_syntaxes]. The
+    /// index in this vec matches the index in
+    /// [Self.minimal_syntaxes.serialized_syntax_sets]
+    deserialized_minimal_syntaxes: Vec<LazyCell<SyntaxSet>>,
+}
+
+/// Stores and allows lookup of minimal [SyntaxSet]s. The [SyntaxSet]s are
+/// stored in serialized form, and are deserialized on-demand. This gives good
+/// startup performance since only the necessary [SyntaxReference]s needs to be
+/// deserialized.
+#[derive(Debug, Clone, serde::Deserialize, serde::Serialize)]
+pub(crate) struct MinimalSyntaxes {
+    /// Lookup the index into `serialized_syntax_sets` of a [SyntaxSet] by the
+    /// name of any [SyntaxReference] inside the [SyntaxSet]
+    /// (We will later add `by_extension`, `by_first_line`, etc.)
+    pub(crate) by_name: HashMap<String, usize>,
+
+    /// Serialized [SyntaxSet]s. Whether or not this data is compressed is
+    /// decided by [COMPRESS_SERIALIZED_MINIMAL_SYNTAXES]
+    pub(crate) serialized_syntax_sets: Vec<Vec<u8>>,
+}
+
+impl MinimalAssets {
+    pub(crate) fn new(minimal_syntaxes: MinimalSyntaxes) -> Self {
+        // Prepare so we can lazily load minimal syntaxes without a mut reference
+        let deserialized_minimal_syntaxes =
+            vec![LazyCell::new(); minimal_syntaxes.serialized_syntax_sets.len()];
+
+        Self {
+            minimal_syntaxes,
+            deserialized_minimal_syntaxes,
+        }
+    }
+
+    pub fn get_syntax_set_by_name(&self, name: &str) -> Option<&SyntaxSet> {
+        self.minimal_syntaxes
+            .by_name
+            .get(&name.to_ascii_lowercase())
+            .and_then(|index| self.get_minimal_syntax_set_with_index(*index))
+    }
+
+    fn load_minimal_syntax_set_with_index(&self, index: usize) -> Result<SyntaxSet> {
+        let serialized_syntax_set = &self.minimal_syntaxes.serialized_syntax_sets[index];
+        asset_from_contents(
+            &serialized_syntax_set[..],
+            &format!("minimal syntax set {}", index),
+            COMPRESS_SERIALIZED_MINIMAL_SYNTAXES,
+        )
+        .map_err(|_| format!("Could not parse minimal syntax set {}", index).into())
+    }
+
+    fn get_minimal_syntax_set_with_index(&self, index: usize) -> Option<&SyntaxSet> {
+        self.deserialized_minimal_syntaxes
+            .get(index)
+            .and_then(|cell| {
+                cell.try_borrow_with(|| self.load_minimal_syntax_set_with_index(index))
+                    .ok()
+            })
+    }
+}
--- a/src/assets/serialized_syntax_set.rs
+++ b/src/assets/serialized_syntax_set.rs
@@ -0,0 +1,27 @@
+use std::path::PathBuf;
+
+use syntect::parsing::SyntaxSet;
+
+use super::*;
+
+/// A SyntaxSet in serialized form, i.e. bincoded and flate2 compressed.
+/// We keep it in this format since we want to load it lazily.
+#[derive(Debug)]
+pub enum SerializedSyntaxSet {
+    /// The data comes from a user-generated cache file.
+    FromFile(PathBuf),
+
+    /// The data to use is embedded into the bat binary.
+    FromBinary(&'static [u8]),
+}
+
+impl SerializedSyntaxSet {
+    pub fn deserialize(&self) -> Result<SyntaxSet> {
+        match self {
+            SerializedSyntaxSet::FromBinary(data) => Ok(from_binary(data, COMPRESS_SYNTAXES)),
+            SerializedSyntaxSet::FromFile(ref path) => {
+                asset_from_cache(path, "syntax set", COMPRESS_SYNTAXES)
+            }
+        }
+    }
+}
--- a/src/bin/bat/app.rs
+++ b/src/bin/bat/app.rs
@@ -62,7 +62,7 @@ impl App {
            // Read arguments from bats config file
            let mut args = get_args_from_env_var()
                .unwrap_or_else(get_args_from_config_file)
-                .chain_err(|| "Could not parse configuration file")?;
+                .map_err(|_| "Could not parse configuration file")?;

            // Put the zero-th CLI argument (program name) first
            args.insert(0, cli_args.next().unwrap());
--- a/src/bin/bat/assets.rs
+++ b/src/bin/bat/assets.rs
@@ -20,6 +20,7 @@ pub fn cache_dir() -> Cow<'static, str> {
 pub fn clear_assets() {
    clear_asset("themes.bin", "theme set cache");
    clear_asset("syntaxes.bin", "syntax set cache");
+    clear_asset("minimal_syntaxes.bin", "minimal syntax sets cache");
    clear_asset("metadata.yaml", "metadata file");
 }

--- a/src/bin/bat/clap_app.rs
+++ b/src/bin/bat/clap_app.rs
@@ -95,7 +95,8 @@ pub fn build_app(interactive_output: bool) -> ClapApp<'static, 'static> {
                     '--highlight-line 40' highlights line 40\n  \
                     '--highlight-line 30:40' highlights lines 30 to 40\n  \
                     '--highlight-line :40' highlights lines 1 to 40\n  \
-                     '--highlight-line 40:' highlights lines 40 to the end of the file",
+                     '--highlight-line 40:' highlights lines 40 to the end of the file\n  \
+                     '--highlight-line 30:+10' highlights lines 30 to 40",
                ),
        )
        .arg(
@@ -423,7 +424,8 @@ pub fn build_app(interactive_output: bool) -> ClapApp<'static, 'static> {
                     '--line-range 30:40' prints lines 30 to 40\n  \
                     '--line-range :40' prints lines 1 to 40\n  \
                     '--line-range 40:' prints lines 40 to the end of the file\n  \
-                     '--line-range 40' only prints line 40",
+                     '--line-range 40' only prints line 40\n  \
+                     '--line-range 30:+10' prints lines 30 to 40",
                ),
        )
        .arg(
--- a/src/bin/bat/config.rs
+++ b/src/bin/bat/config.rs
@@ -64,7 +64,7 @@ pub fn generate_config_file() -> bat::error::Result<()> {
 #--pager="less --RAW-CONTROL-CHARS --quit-if-one-screen --mouse"

 # Syntax mappings: map a certain filename pattern to a language.
-#   Example 1: use the C++ syntax for .ino files
+#   Example 1: use the C++ syntax for Arduino .ino files
 #   Example 2: Use ".gitignore"-style highlighting for ".ignore" files
 #--map-syntax "*.ino:C++"
 #--map-syntax ".ignore:Git Ignore"
--- a/src/bin/bat/main.rs
+++ b/src/bin/bat/main.rs
@@ -1,5 +1,4 @@
-// `error_chain!` can recurse deeply
-#![recursion_limit = "1024"]
+#![deny(unsafe_code)]

 mod app;
 mod assets;
@@ -50,8 +49,7 @@ fn build_assets(matches: &clap::ArgMatches) -> Result<()> {

    let blank = matches.is_present("blank");

-    let assets = bat::assets::HighlightingAssets::from_files(source_dir, !blank)?;
-    assets.save_to_cache(target_dir, clap::crate_version!())
+    bat::assets::build(source_dir, !blank, target_dir, clap::crate_version!())
 }

 fn run_cache_subcommand(matches: &clap::ArgMatches) -> Result<()> {
@@ -95,7 +93,7 @@ pub fn get_languages(config: &Config) -> Result<String> {
        .collect::<Vec<_>>();

    // Handling of file-extension conflicts, see issue #1076
-    for lang in languages.iter_mut() {
+    for lang in &mut languages {
        let lang_name = lang.name.clone();
        lang.file_extensions.retain(|extension| {
            // The 'extension' variable is not certainly a real extension.
@@ -104,17 +102,12 @@ pub fn get_languages(config: &Config) -> Result<String> {
            // Also skip if the 'extension' contains another real extension, likely
            // that is a full match file name like 'CMakeLists.txt' and 'Cargo.lock'
            if extension.starts_with('.') || Path::new(extension).extension().is_some() {
-                true
-            } else {
-                let test_file = Path::new("test").with_extension(extension);
-                let syntax_in_set = assets
-                    .get_syntax_for_file_name(test_file, &config.syntax_mapping)
-                    .unwrap(); // safe since .get_syntaxes() above worked
-                match syntax_in_set {
-                    Some(syntax_in_set) => syntax_in_set.syntax.name == lang_name,
-                    None => false,
-                }
+                return true;
            }
+
+            let test_file = Path::new("test").with_extension(extension);
+            let syntax_in_set = assets.get_syntax_for_path(test_file, &config.syntax_mapping);
+            matches!(syntax_in_set, Ok(syntax_in_set) if syntax_in_set.syntax.name == lang_name)
        });
    }

@@ -122,7 +115,7 @@ pub fn get_languages(config: &Config) -> Result<String> {

    let configured_languages = get_syntax_mapping_to_paths(config.syntax_mapping.mappings());

-    for lang in languages.iter_mut() {
+    for lang in &mut languages {
        if let Some(additional_paths) = configured_languages.get(lang.name.as_str()) {
            lang.file_extensions
                .extend(additional_paths.iter().cloned());
@@ -236,7 +229,7 @@ fn invoke_bugreport(app: &App) {
    let pager = bat::config::get_pager_executable(app.matches.value_of("pager"))
        .unwrap_or_else(|| "less".to_owned()); // FIXME: Avoid non-canonical path to "less".

-    let report = bugreport!()
+    let mut report = bugreport!()
        .info(SoftwareVersion::default())
        .info(OperatingSystem::default())
        .info(CommandLine::default())
@@ -244,6 +237,8 @@ fn invoke_bugreport(app: &App) {
            "SHELL",
            "PAGER",
            "LESS",
+            "LANG",
+            "LC_ALL",
            "BAT_PAGER",
            "BAT_CACHE_PATH",
            "BAT_CONFIG_PATH",
@@ -260,14 +255,13 @@ fn invoke_bugreport(app: &App) {
        .info(FileContent::new("Config file", config_file()))
        .info(CompileTimeInformation::default());

-    let mut report = if let Ok(resolved_path) = grep_cli::resolve_binary(pager) {
-        report.info(CommandOutput::new(
+    #[cfg(feature = "paging")]
+    if let Ok(resolved_path) = grep_cli::resolve_binary(pager) {
+        report = report.info(CommandOutput::new(
            "Less version",
            resolved_path,
            &["--version"],
        ))
-    } else {
-        report
    };

    report.print::<Markdown>();
--- a/src/config.rs
+++ b/src/config.rs
@@ -90,11 +90,10 @@ pub struct Config<'a> {

 #[cfg(all(feature = "minimal-application", feature = "paging"))]
 pub fn get_pager_executable(config_pager: Option<&str>) -> Option<String> {
-    if let Ok(Some(pager)) = crate::pager::get_pager(config_pager) {
-        Some(pager.bin)
-    } else {
-        None
-    }
+    crate::pager::get_pager(config_pager)
+        .ok()
+        .flatten()
+        .map(|pager| pager.bin)
 }

 #[test]
--- a/src/controller.rs
+++ b/src/controller.rs
@@ -175,9 +175,10 @@ impl<'b> Controller<'b> {
                    let mut line_ranges: Vec<LineRange> = vec![];

                    if let Some(line_changes) = line_changes {
-                        for line in line_changes.keys() {
-                            let line = *line as usize;
-                            line_ranges.push(LineRange::new(line - context, line + context));
+                        for &line in line_changes.keys() {
+                            let line = line as usize;
+                            line_ranges
+                                .push(LineRange::new(line.saturating_sub(context), line + context));
                        }
                    }

--- a/src/error.rs
+++ b/src/error.rs
@@ -1,42 +1,52 @@
-use error_chain::error_chain;
 use std::io::Write;
+use thiserror::Error;

-error_chain! {
-    foreign_links {
-        Clap(::clap::Error) #[cfg(feature = "minimal-application")];
-        Io(::std::io::Error);
-        SyntectError(::syntect::LoadingError);
-        ParseIntError(::std::num::ParseIntError);
-        GlobParsingError(::globset::Error);
-        SerdeYamlError(::serde_yaml::Error);
-    }
+#[derive(Error, Debug)]
+pub enum Error {
+    #[error(transparent)]
+    Io(#[from] ::std::io::Error),
+    #[error(transparent)]
+    SyntectError(#[from] ::syntect::LoadingError),
+    #[error(transparent)]
+    ParseIntError(#[from] ::std::num::ParseIntError),
+    #[error(transparent)]
+    GlobParsingError(#[from] ::globset::Error),
+    #[error(transparent)]
+    SerdeYamlError(#[from] ::serde_yaml::Error),
+    #[error("unable to detect syntax for {0}")]
+    UndetectedSyntax(String),
+    #[error("unknown syntax: '{0}'")]
+    UnknownSyntax(String),
+    #[error("Unknown style '{0}'")]
+    UnknownStyle(String),
+    #[error("Use of bat as a pager is disallowed in order to avoid infinite recursion problems")]
+    InvalidPagerValueBat,
+    #[error("{0}")]
+    Msg(String),
+}

-    errors {
-        UndetectedSyntax(input: String) {
-            description("unable to detect syntax"),
-            display("unable to detect syntax for {}", input)
-        }
-        UnknownSyntax(name: String) {
-            description("unknown syntax"),
-            display("unknown syntax: '{}'", name)
-        }
-        InvalidPagerValueBat {
-            description("invalid value `bat` for pager property"),
-            display("Use of bat as a pager is disallowed in order to avoid infinite recursion problems")
-        }
+impl From<&'static str> for Error {
+    fn from(s: &'static str) -> Self {
+        Error::Msg(s.to_owned())
    }
 }

+impl From<String> for Error {
+    fn from(s: String) -> Self {
+        Error::Msg(s)
+    }
+}
+
+pub type Result<T> = std::result::Result<T, Error>;
+
 pub fn default_error_handler(error: &Error, output: &mut dyn Write) {
    use ansi_term::Colour::Red;

    match error {
-        Error(ErrorKind::Io(ref io_error), _)
-            if io_error.kind() == ::std::io::ErrorKind::BrokenPipe =>
-        {
+        Error::Io(ref io_error) if io_error.kind() == ::std::io::ErrorKind::BrokenPipe => {
            ::std::process::exit(0);
        }
-        Error(ErrorKind::SerdeYamlError(_), _) => {
+        Error::SerdeYamlError(_) => {
            writeln!(
                output,
                "{}: Error while parsing metadata.yaml file: {}",
--- a/src/input.rs
+++ b/src/input.rs
@@ -50,7 +50,7 @@ impl InputDescription {
    }

    pub fn title(&self) -> &String {
-        match self.title.as_ref() {
+        match &self.title {
            Some(title) => title,
            None => &self.name,
        }
@@ -108,6 +108,21 @@ pub(crate) struct OpenedInput<'a> {
    pub(crate) description: InputDescription,
 }

+impl OpenedInput<'_> {
+    /// Get the path of the file:
+    /// If this was set by the metadata, that will take priority.
+    /// If it wasn't, it will use the real file path (if available).
+    pub(crate) fn path(&self) -> Option<&PathBuf> {
+        self.metadata
+            .user_provided_name
+            .as_ref()
+            .or_else(|| match self.kind {
+                OpenedInputKind::OrdinaryFile(ref path) => Some(path),
+                _ => None,
+            })
+    }
+}
+
 impl<'a> Input<'a> {
    pub fn ordinary_file(path: impl AsRef<Path>) -> Self {
        Self::_ordinary_file(path.as_ref())
@@ -256,18 +271,18 @@ impl<'a> InputReader<'a> {
    }

    pub(crate) fn read_line(&mut self, buf: &mut Vec<u8>) -> io::Result<bool> {
-        if self.first_line.is_empty() {
-            let res = self.inner.read_until(b'\n', buf).map(|size| size > 0)?;
-
-            if self.content_type == Some(ContentType::UTF_16LE) {
-                self.inner.read_until(0x00, buf).ok();
-            }
-
-            Ok(res)
-        } else {
+        if !self.first_line.is_empty() {
            buf.append(&mut self.first_line);
-            Ok(true)
+            return Ok(true);
        }
+
+        let res = self.inner.read_until(b'\n', buf).map(|size| size > 0)?;
+
+        if self.content_type == Some(ContentType::UTF_16LE) {
+            let _ = self.inner.read_until(0x00, buf);
+        }
+
+        Ok(res)
    }
 }

--- a/src/less.rs
+++ b/src/less.rs
@@ -11,13 +11,13 @@ pub fn retrieve_less_version(less_path: &dyn AsRef<OsStr>) -> Option<usize> {
 }

 fn parse_less_version(output: &[u8]) -> Option<usize> {
-    if output.starts_with(b"less ") {
-        let version = std::str::from_utf8(&output[5..]).ok()?;
-        let end = version.find(|c: char| !c.is_ascii_digit())?;
-        version[..end].parse::<usize>().ok()
-    } else {
-        None
+    if !output.starts_with(b"less ") {
+        return None;
    }
+
+    let version = std::str::from_utf8(&output[5..]).ok()?;
+    let end = version.find(|c: char| !c.is_ascii_digit())?;
+    version[..end].parse::<usize>().ok()
 }

 #[test]
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -19,10 +19,14 @@
 //!     .unwrap();
 //! ```

+#![deny(unsafe_code)]
+
 mod macros;

 pub mod assets;
-pub mod assets_metadata;
+pub mod assets_metadata {
+    pub use super::assets::assets_metadata::*;
+}
 pub mod config;
 pub mod controller;
 mod decorations;
@@ -40,8 +44,6 @@ mod preprocessor;
 mod pretty_printer;
 pub(crate) mod printer;
 pub mod style;
-#[cfg(feature = "build-assets")]
-mod syntax_dependencies;
 pub(crate) mod syntax_mapping;
 mod terminal;
 pub(crate) mod wrapping;
--- a/src/line_range.rs
+++ b/src/line_range.rs
@@ -47,7 +47,16 @@ impl LineRange {
            }
            2 => {
                new_range.lower = line_numbers[0].parse()?;
-                new_range.upper = line_numbers[1].parse()?;
+
+                new_range.upper = if line_numbers[1].bytes().next() == Some(b'+') {
+                    let more_lines = &line_numbers[1][1..]
+                        .parse()
+                        .map_err(|_| "Invalid character after +")?;
+                    new_range.lower + more_lines
+                } else {
+                    line_numbers[1].parse()?
+                };
+
                Ok(new_range)
            }
            _ => Err(
@@ -100,6 +109,23 @@ fn test_parse_fail() {
    assert!(range.is_err());
 }

+#[test]
+fn test_parse_plus() {
+    let range = LineRange::from("40:+10").expect("Shouldn't fail on test!");
+    assert_eq!(40, range.lower);
+    assert_eq!(50, range.upper);
+}
+
+#[test]
+fn test_parse_plus_fail() {
+    let range = LineRange::from("40:+z");
+    assert!(range.is_err());
+    let range = LineRange::from("40:+-10");
+    assert!(range.is_err());
+    let range = LineRange::from("40:+");
+    assert!(range.is_err());
+}
+
 #[derive(Copy, Clone, Debug, PartialEq)]
 pub enum RangeCheckResult {
    // Within one of the given ranges
--- a/src/output.rs
+++ b/src/output.rs
@@ -52,7 +52,7 @@ impl OutputType {
        use std::process::{Command, Stdio};

        let pager_opt =
-            pager::get_pager(pager_from_config).chain_err(|| "Could not parse pager command.")?;
+            pager::get_pager(pager_from_config).map_err(|_| "Could not parse pager command.")?;

        let pager = match pager_opt {
            Some(pager) => pager,
@@ -60,7 +60,7 @@ impl OutputType {
        };

        if pager.kind == PagerKind::Bat {
-            return Err(ErrorKind::InvalidPagerValueBat.into());
+            return Err(Error::InvalidPagerValueBat);
        }

        let resolved_path = match grep_cli::resolve_binary(&pager.bin) {
@@ -142,7 +142,7 @@ impl OutputType {
            OutputType::Pager(ref mut command) => command
                .stdin
                .as_mut()
-                .chain_err(|| "Could not open stdin for pager")?,
+                .ok_or("Could not open stdin for pager")?,
            OutputType::Stdout(ref mut handle) => handle,
        })
    }
--- a/src/printer.rs
+++ b/src/printer.rs
@@ -99,6 +99,20 @@ impl<'a> Printer for SimplePrinter<'a> {
    }
 }

+struct HighlighterFromSet<'a> {
+    highlighter: HighlightLines<'a>,
+    syntax_set: &'a SyntaxSet,
+}
+
+impl<'a> HighlighterFromSet<'a> {
+    fn new(syntax_in_set: SyntaxReferenceInSet<'a>, theme: &'a Theme) -> Self {
+        Self {
+            highlighter: HighlightLines::new(syntax_in_set.syntax, theme),
+            syntax_set: syntax_in_set.syntax_set,
+        }
+    }
+}
+
 pub(crate) struct InteractivePrinter<'a> {
    colors: Colors,
    config: &'a Config<'a>,
@@ -108,8 +122,7 @@ pub(crate) struct InteractivePrinter<'a> {
    content_type: Option<ContentType>,
    #[cfg(feature = "git")]
    pub line_changes: &'a Option<LineChanges>,
-    highlighter: Option<HighlightLines<'a>>,
-    syntax_set: &'a SyntaxSet,
+    highlighter_from_set: Option<HighlighterFromSet<'a>>,
    background_color_highlight: Option<Color>,
 }

@@ -163,29 +176,24 @@ impl<'a> InteractivePrinter<'a> {
            panel_width = 0;
        }

-        let (highlighter, syntax_set) = if input
+        let highlighter_from_set = if input
            .reader
            .content_type
            .map_or(false, |c| c.is_binary() && !config.show_nonprintable)
        {
-            (None, assets.get_syntax_set()?)
+            None
        } else {
            // Determine the type of syntax for highlighting
            let syntax_in_set =
                match assets.get_syntax(config.language, input, &config.syntax_mapping) {
                    Ok(syntax_in_set) => syntax_in_set,
-                    Err(Error(ErrorKind::UndetectedSyntax(_), _)) => {
-                        let syntax_set = assets.get_syntax_set()?;
-                        let syntax = syntax_set.find_syntax_plain_text();
-                        SyntaxReferenceInSet { syntax, syntax_set }
-                    }
+                    Err(Error::UndetectedSyntax(_)) => assets
+                        .find_syntax_by_name("Plain Text")?
+                        .expect("A plain text syntax is available"),
                    Err(e) => return Err(e),
                };

-            (
-                Some(HighlightLines::new(syntax_in_set.syntax, theme)),
-                syntax_in_set.syntax_set,
-            )
+            Some(HighlighterFromSet::new(syntax_in_set, theme))
        };

        Ok(InteractivePrinter {
@@ -197,8 +205,7 @@ impl<'a> InteractivePrinter<'a> {
            ansi_prefix_sgr: String::new(),
            #[cfg(feature = "git")]
            line_changes,
-            highlighter,
-            syntax_set,
+            highlighter_from_set,
            background_color_highlight,
        })
    }
@@ -226,29 +233,29 @@ impl<'a> InteractivePrinter<'a> {

    fn create_fake_panel(&self, text: &str) -> String {
        if self.panel_width == 0 {
-            "".to_string()
+            return "".to_string();
+        }
+
+        let text_truncated: String = text.chars().take(self.panel_width - 1).collect();
+        let text_filled: String = format!(
+            "{}{}",
+            text_truncated,
+            " ".repeat(self.panel_width - 1 - text_truncated.len())
+        );
+        if self.config.style_components.grid() {
+            format!("{} │ ", text_filled)
        } else {
-            let text_truncated: String = text.chars().take(self.panel_width - 1).collect();
-            let text_filled: String = format!(
-                "{}{}",
-                text_truncated,
-                " ".repeat(self.panel_width - 1 - text_truncated.len())
-            );
-            if self.config.style_components.grid() {
-                format!("{} │ ", text_filled)
-            } else {
-                text_filled
-            }
+            text_filled
        }
    }

    fn preprocess(&self, text: &str, cursor: &mut usize) -> String {
        if self.config.tab_width > 0 {
-            expand_tabs(text, self.config.tab_width, cursor)
-        } else {
-            *cursor += text.len();
-            text.to_string()
+            return expand_tabs(text, self.config.tab_width, cursor);
        }
+
+        *cursor += text.len();
+        text.to_string()
    }
 }

@@ -389,13 +396,15 @@ impl<'a> Printer for InteractivePrinter<'a> {
        };

        let regions = {
-            let highlighter = match self.highlighter {
-                Some(ref mut highlighter) => highlighter,
+            let highlighter_from_set = match self.highlighter_from_set {
+                Some(ref mut highlighter_from_set) => highlighter_from_set,
                _ => {
                    return Ok(());
                }
            };
-            highlighter.highlight(line.as_ref(), self.syntax_set)
+            highlighter_from_set
+                .highlighter
+                .highlight(&line, highlighter_from_set.syntax_set)
        };

        if out_of_range {
@@ -420,8 +429,7 @@ impl<'a> Printer for InteractivePrinter<'a> {
            let decorations = self
                .decorations
                .iter()
-                .map(|d| d.generate(line_number, false, self))
-                .collect::<Vec<_>>();
+                .map(|d| d.generate(line_number, false, self));

            for deco in decorations {
                write!(handle, "{} ", deco.text)?;
@@ -435,7 +443,7 @@ impl<'a> Printer for InteractivePrinter<'a> {
            let colored_output = self.config.colored_output;
            let italics = self.config.use_italic_text;

-            for &(style, region) in regions.iter() {
+            for &(style, region) in &regions {
                let text = &*self.preprocess(region, &mut cursor_total);
                let text_trimmed = text.trim_end_matches(|c| c == '\r' || c == '\n');
                write!(
@@ -472,7 +480,7 @@ impl<'a> Printer for InteractivePrinter<'a> {
                writeln!(handle)?;
            }
        } else {
-            for &(style, region) in regions.iter() {
+            for &(style, region) in &regions {
                let ansi_iterator = AnsiCodeIterator::new(region);
                let mut ansi_prefix: String = String::new();
                for chunk in ansi_iterator {
--- a/src/syntax_dependencies.rs
+++ b/src/syntax_dependencies.rs
@@ -1,184 +0,0 @@
-use std::collections::HashMap;
-use syntect::parsing::syntax_definition::{
-    ContextReference, MatchOperation, MatchPattern, Pattern, SyntaxDefinition,
-};
-use syntect::parsing::{Scope, SyntaxSet, SyntaxSetBuilder};
-
-type SyntaxName = String;
-
-/// Used to look up what dependencies a given [SyntaxDefinition] has
-type SyntaxToDependencies = HashMap<SyntaxName, Vec<Dependency>>;
-
-/// Used to look up which [SyntaxDefinition] corresponds to a given [Dependency]
-type DependencyToSyntax<'a> = HashMap<Dependency, &'a SyntaxDefinition>;
-
-/// Represents a dependency on an external `.sublime-syntax` file.
-#[derive(Debug, Eq, PartialEq, Clone, Hash)]
-enum Dependency {
-    /// By name. Example YAML: `include: C.sublime-syntax`
-    ByName(String),
-
-    /// By scope. Example YAML: `embed: scope:source.c`
-    ByScope(Scope),
-}
-
-/// Generates independent [SyntaxSet]s after analyzing dependencies between syntaxes
-/// in a [SyntaxSetBuilder], and then prints the reults.
-pub(crate) fn print_syntax_dependencies(syntax_set_builder: &SyntaxSetBuilder) {
-    println!("Constructing independent SyntaxSets...");
-    let independent_syntax_sets = build_independent_syntax_sets(syntax_set_builder);
-
-    println!("Independent SyntaxSets:");
-    for syntax_set in independent_syntax_sets {
-        let names = syntax_set
-            .syntaxes()
-            .iter()
-            .map(|syntax| &syntax.name)
-            .collect::<Vec<_>>();
-        println!("{:?}", names);
-    }
-}
-
-/// Analyzes dependencies between syntaxes in a [SyntaxSetBuilder].
-/// From that, it builds independent [SyntaxSet]s.
-fn build_independent_syntax_sets(
-    syntax_set_builder: &'_ SyntaxSetBuilder,
-) -> impl Iterator<Item = SyntaxSet> + '_ {
-    let syntaxes = syntax_set_builder.syntaxes();
-
-    // Build the data structures we need for dependency resolution
-    let (syntax_to_dependencies, dependency_to_syntax) = generate_maps(syntaxes);
-
-    // Create one independent SyntaxSet from each (non-hidden) SyntaxDefinition
-    syntaxes.iter().filter_map(move |syntax| {
-        if syntax.hidden {
-            return None;
-        }
-
-        let mut builder = SyntaxSetDependencyBuilder::new();
-        builder.add_with_dependencies(syntax, &syntax_to_dependencies, &dependency_to_syntax);
-        Some(builder.build())
-    })
-}
-
-/// In order to analyze dependencies, we need two key pieces of data.
-/// First, when we have a [Dependency], we need to know what [SyntaxDefinition] that
-/// corresponds to. Second, when we have a [SyntaxDefinition], we need to know
-/// what dependencies it has. This functions generates that data for each syntax.
-fn generate_maps(syntaxes: &[SyntaxDefinition]) -> (SyntaxToDependencies, DependencyToSyntax) {
-    let mut syntax_to_dependencies = HashMap::new();
-    let mut dependency_to_syntax = HashMap::new();
-
-    for syntax in syntaxes {
-        syntax_to_dependencies.insert(syntax.name.clone(), dependencies_for_syntax(syntax));
-
-        dependency_to_syntax.insert(Dependency::ByName(syntax.name.clone()), syntax);
-        dependency_to_syntax.insert(Dependency::ByScope(syntax.scope), syntax);
-    }
-
-    (syntax_to_dependencies, dependency_to_syntax)
-}
-
-/// Gets what external dependencies a given [SyntaxDefinition] has.
-/// An external dependency is another `.sublime-syntax` file.
-/// It does that by looking for variants of the following YAML patterns:
-/// - `include: C.sublime-syntax`
-/// - `embed: scope:source.c`
-fn dependencies_for_syntax(syntax: &SyntaxDefinition) -> Vec<Dependency> {
-    let mut dependencies: Vec<Dependency> = syntax
-        .contexts
-        .values()
-        .flat_map(|context| &context.patterns)
-        .flat_map(dependencies_from_pattern)
-        .collect();
-
-    // No need to track a dependency more than once
-    dependencies.dedup();
-
-    dependencies
-}
-
-fn dependencies_from_pattern(pattern: &Pattern) -> Vec<Dependency> {
-    match *pattern {
-        Pattern::Match(MatchPattern {
-            operation: MatchOperation::Push(ref context_references),
-            ..
-        }) => context_references
-            .iter()
-            .map(dependency_from_context_reference)
-            .collect(),
-        Pattern::Include(ref context_reference) => {
-            vec![dependency_from_context_reference(context_reference)]
-        }
-        _ => vec![],
-    }
-    .into_iter()
-    .flatten()
-    .collect()
-}
-
-fn dependency_from_context_reference(context_reference: &ContextReference) -> Option<Dependency> {
-    match &context_reference {
-        ContextReference::File { ref name, .. } => Some(Dependency::ByName(name.clone())),
-        ContextReference::ByScope { ref scope, .. } => Some(Dependency::ByScope(*scope)),
-        _ => None,
-    }
-}
-
-/// Helper to construct a [SyntaxSetBuilder] that contains only [SyntaxDefinition]s
-/// that have dependencies among them.
-struct SyntaxSetDependencyBuilder {
-    syntax_set_builder: SyntaxSetBuilder,
-}
-
-impl SyntaxSetDependencyBuilder {
-    fn new() -> Self {
-        SyntaxSetDependencyBuilder {
-            syntax_set_builder: SyntaxSetBuilder::new(),
-        }
-    }
-
-    /// Add a [SyntaxDefinition] to the underlying [SyntaxSetBuilder].
-    /// Also resolve any dependencies it has and add those [SyntaxDefinition]s too.
-    /// This is a recursive process.
-    fn add_with_dependencies(
-        &mut self,
-        syntax: &SyntaxDefinition,
-        syntax_to_dependencies: &SyntaxToDependencies,
-        dependency_to_syntax: &DependencyToSyntax,
-    ) {
-        let name = &syntax.name;
-        if self.is_syntax_already_added(name) {
-            return;
-        }
-
-        self.syntax_set_builder.add(syntax.clone());
-
-        let dependencies = syntax_to_dependencies.get(name);
-        if dependencies.is_none() {
-            eprintln!("ERROR: Unknown dependencies for {}", name);
-            return;
-        }
-
-        for dependency in dependencies.unwrap() {
-            if let Some(syntax_definition_dependency) = dependency_to_syntax.get(dependency) {
-                self.add_with_dependencies(
-                    syntax_definition_dependency,
-                    syntax_to_dependencies,
-                    dependency_to_syntax,
-                )
-            }
-        }
-    }
-
-    fn is_syntax_already_added(&self, name: &str) -> bool {
-        self.syntax_set_builder
-            .syntaxes()
-            .iter()
-            .any(|syntax| syntax.name == name)
-    }
-
-    fn build(self) -> SyntaxSet {
-        self.syntax_set_builder.build()
-    }
-}
--- a/src/syntax_mapping.rs
+++ b/src/syntax_mapping.rs
@@ -81,7 +81,7 @@ impl<'a> SyntaxMapping<'a> {
                .unwrap();
        }

-        for glob in [
+        for glob in &[
            "**/systemd/**/*.conf",
            "**/systemd/**/*.example",
            "*.automount",
@@ -100,9 +100,7 @@ impl<'a> SyntaxMapping<'a> {
            "*.swap",
            "*.target",
            "*.timer",
-        ]
-        .iter()
-        {
+        ] {
            mapping.insert(glob, MappingTarget::MapTo("INI")).unwrap();
        }

@@ -153,7 +151,7 @@ impl<'a> SyntaxMapping<'a> {
    }

    pub(crate) fn get_syntax_for(&self, path: impl AsRef<Path>) -> Option<MappingTarget<'a>> {
-        let candidate = Candidate::new(path.as_ref());
+        let candidate = Candidate::new(&path);
        let candidate_filename = path.as_ref().file_name().map(Candidate::new);
        for (ref glob, ref syntax) in self.mappings.iter().rev() {
            if glob.is_match_candidate(&candidate)
--- a/tests/examples/regression_tests/first_line_fallback.invalid-syntax
+++ b/tests/examples/regression_tests/first_line_fallback.invalid-syntax
@@ -0,0 +1,2 @@
+#!/usr/bin/env bash
+echo "Hello"
--- a/tests/integration_tests.rs
+++ b/tests/integration_tests.rs
@@ -34,13 +34,17 @@ const EXAMPLES_DIR: &str = "tests/examples";
 fn bat_raw_command_with_config() -> Command {
    let mut cmd = Command::cargo_bin("bat").unwrap();
    cmd.current_dir("tests/examples");
-    cmd.env_remove("PAGER");
-    cmd.env_remove("BAT_PAGER");
-    cmd.env_remove("BAT_CONFIG_PATH");
-    cmd.env_remove("BAT_STYLE");
-    cmd.env_remove("BAT_THEME");
-    cmd.env_remove("BAT_TABS");
+    cmd.env_remove("BAT_CACHE_PATH");
    cmd.env_remove("BAT_CONFIG_DIR");
+    cmd.env_remove("BAT_CONFIG_PATH");
+    cmd.env_remove("BAT_OPTS");
+    cmd.env_remove("BAT_PAGER");
+    cmd.env_remove("BAT_STYLE");
+    cmd.env_remove("BAT_TABS");
+    cmd.env_remove("BAT_THEME");
+    cmd.env_remove("COLORTERM");
+    cmd.env_remove("NO_COLOR");
+    cmd.env_remove("PAGER");
    cmd
 }

@@ -1123,6 +1127,21 @@ fn do_not_detect_different_syntax_for_stdin_and_files() {
    );
 }

+#[test]
+fn no_first_line_fallback_when_mapping_to_invalid_syntax() {
+    let file = "regression_tests/first_line_fallback.invalid-syntax";
+
+    bat()
+        .arg("--color=always")
+        .arg("--map-syntax=*.invalid-syntax:InvalidSyntax")
+        .arg(&format!("--file-name={}", file))
+        .arg("--style=plain")
+        .arg(file)
+        .assert()
+        .failure()
+        .stderr(predicate::str::contains("unknown syntax: 'InvalidSyntax'"));
+}
+
 #[test]
 fn show_all_mode() {
    bat()
--- a/tests/snapshots/output/changes.snapshot.txt
+++ b/tests/snapshots/output/changes.snapshot.txt
@@ -1,3 +1,4 @@
+ /// A rectangle. First line is changed to prevent a regression of #1869
  struct Rectangle {
      width: u32,
      height: u32,
--- a/tests/snapshots/output/changes_grid.snapshot.txt
+++ b/tests/snapshots/output/changes_grid.snapshot.txt
@@ -1,4 +1,5 @@
 ──┬─────────────────────────────────────────────────────────────────────────────
+ │ /// A rectangle. First line is changed to prevent a regression of #1869
  │ struct Rectangle {
  │     width: u32,
  │     height: u32,
--- a/tests/snapshots/output/changes_grid_header.snapshot.txt
+++ b/tests/snapshots/output/changes_grid_header.snapshot.txt
@@ -1,6 +1,7 @@
 ──┬─────────────────────────────────────────────────────────────────────────────
  │ File: sample.rs
 ──┼─────────────────────────────────────────────────────────────────────────────
+ │ /// A rectangle. First line is changed to prevent a regression of #1869
  │ struct Rectangle {
  │     width: u32,
  │     height: u32,
--- a/tests/snapshots/output/changes_grid_header_numbers.snapshot.txt
+++ b/tests/snapshots/output/changes_grid_header_numbers.snapshot.txt
@@ -1,26 +1,27 @@
 ───────┬────────────────────────────────────────────────────────────────────────
       │ File: sample.rs
 ───────┼────────────────────────────────────────────────────────────────────────
-   1   │ struct Rectangle {
-   2   │     width: u32,
-   3   │     height: u32,
-   4   │ }
-   5   │ 
-   6 _ │ fn main() {
-   7   │     let rect1 = Rectangle { width: 30, height: 50 };
-   8   │ 
-   9   │     println!(
-  10 ~ │         "The perimeter of the rectangle is {} pixels.",
-  11 ~ │         perimeter(&rect1)
-  12   │     );
-  13 + │     println!(r#"This line contains invalid utf8:  "<22><><EFBFBD><EFBFBD><EFBFBD>"#;
-  14   │ }
-  15   │ 
-  16   │ fn area(rectangle: &Rectangle) -> u32 {
-  17   │     rectangle.width * rectangle.height
-  18   │ }
-  19 + │ 
-  20 + │ fn perimeter(rectangle: &Rectangle) -> u32 {
-  21 + │     (rectangle.width + rectangle.height) * 2
-  22 + │ }
+   1 + │ /// A rectangle. First line is changed to prevent a regression of #1869
+   2   │ struct Rectangle {
+   3   │     width: u32,
+   4   │     height: u32,
+   5   │ }
+   6   │ 
+   7 _ │ fn main() {
+   8   │     let rect1 = Rectangle { width: 30, height: 50 };
+   9   │ 
+  10   │     println!(
+  11 ~ │         "The perimeter of the rectangle is {} pixels.",
+  12 ~ │         perimeter(&rect1)
+  13   │     );
+  14 + │     println!(r#"This line contains invalid utf8:  "<22><><EFBFBD><EFBFBD><EFBFBD>"#;
+  15   │ }
+  16   │ 
+  17   │ fn area(rectangle: &Rectangle) -> u32 {
+  18   │     rectangle.width * rectangle.height
+  19   │ }
+  20 + │ 
+  21 + │ fn perimeter(rectangle: &Rectangle) -> u32 {
+  22 + │     (rectangle.width + rectangle.height) * 2
+  23 + │ }
 ───────┴────────────────────────────────────────────────────────────────────────
--- a/tests/snapshots/output/changes_grid_header_numbers_rule.snapshot.txt
+++ b/tests/snapshots/output/changes_grid_header_numbers_rule.snapshot.txt
@@ -1,26 +1,27 @@
 ───────┬────────────────────────────────────────────────────────────────────────
       │ File: sample.rs
 ───────┼────────────────────────────────────────────────────────────────────────
-   1   │ struct Rectangle {
-   2   │     width: u32,
-   3   │     height: u32,
-   4   │ }
-   5   │ 
-   6 _ │ fn main() {
-   7   │     let rect1 = Rectangle { width: 30, height: 50 };
-   8   │ 
-   9   │     println!(
-  10 ~ │         "The perimeter of the rectangle is {} pixels.",
-  11 ~ │         perimeter(&rect1)
-  12   │     );
-  13 + │     println!(r#"This line contains invalid utf8:  "<22><><EFBFBD><EFBFBD><EFBFBD>"#;
-  14   │ }
-  15   │ 
-  16   │ fn area(rectangle: &Rectangle) -> u32 {
-  17   │     rectangle.width * rectangle.height
-  18   │ }
-  19 + │ 
-  20 + │ fn perimeter(rectangle: &Rectangle) -> u32 {
-  21 + │     (rectangle.width + rectangle.height) * 2
-  22 + │ }
+   1 + │ /// A rectangle. First line is changed to prevent a regression of #1869
+   2   │ struct Rectangle {
+   3   │     width: u32,
+   4   │     height: u32,
+   5   │ }
+   6   │ 
+   7 _ │ fn main() {
+   8   │     let rect1 = Rectangle { width: 30, height: 50 };
+   9   │ 
+  10   │     println!(
+  11 ~ │         "The perimeter of the rectangle is {} pixels.",
+  12 ~ │         perimeter(&rect1)
+  13   │     );
+  14 + │     println!(r#"This line contains invalid utf8:  "<22><><EFBFBD><EFBFBD><EFBFBD>"#;
+  15   │ }
+  16   │ 
+  17   │ fn area(rectangle: &Rectangle) -> u32 {
+  18   │     rectangle.width * rectangle.height
+  19   │ }
+  20 + │ 
+  21 + │ fn perimeter(rectangle: &Rectangle) -> u32 {
+  22 + │     (rectangle.width + rectangle.height) * 2
+  23 + │ }
 ───────┴────────────────────────────────────────────────────────────────────────
--- a/tests/snapshots/output/changes_grid_header_rule.snapshot.txt
+++ b/tests/snapshots/output/changes_grid_header_rule.snapshot.txt
@@ -1,6 +1,7 @@
 ──┬─────────────────────────────────────────────────────────────────────────────
  │ File: sample.rs
 ──┼─────────────────────────────────────────────────────────────────────────────
+ │ /// A rectangle. First line is changed to prevent a regression of #1869
  │ struct Rectangle {
  │     width: u32,
  │     height: u32,
--- a/tests/snapshots/output/changes_grid_numbers.snapshot.txt
+++ b/tests/snapshots/output/changes_grid_numbers.snapshot.txt
@@ -1,24 +1,25 @@
 ───────┬────────────────────────────────────────────────────────────────────────
-   1   │ struct Rectangle {
-   2   │     width: u32,
-   3   │     height: u32,
-   4   │ }
-   5   │ 
-   6 _ │ fn main() {
-   7   │     let rect1 = Rectangle { width: 30, height: 50 };
-   8   │ 
-   9   │     println!(
-  10 ~ │         "The perimeter of the rectangle is {} pixels.",
-  11 ~ │         perimeter(&rect1)
-  12   │     );
-  13 + │     println!(r#"This line contains invalid utf8:  "<22><><EFBFBD><EFBFBD><EFBFBD>"#;
-  14   │ }
-  15   │ 
-  16   │ fn area(rectangle: &Rectangle) -> u32 {
-  17   │     rectangle.width * rectangle.height
-  18   │ }
-  19 + │ 
-  20 + │ fn perimeter(rectangle: &Rectangle) -> u32 {
-  21 + │     (rectangle.width + rectangle.height) * 2
-  22 + │ }
+   1 + │ /// A rectangle. First line is changed to prevent a regression of #1869
+   2   │ struct Rectangle {
+   3   │     width: u32,
+   4   │     height: u32,
+   5   │ }
+   6   │ 
+   7 _ │ fn main() {
+   8   │     let rect1 = Rectangle { width: 30, height: 50 };
+   9   │ 
+  10   │     println!(
+  11 ~ │         "The perimeter of the rectangle is {} pixels.",
+  12 ~ │         perimeter(&rect1)
+  13   │     );
+  14 + │     println!(r#"This line contains invalid utf8:  "<22><><EFBFBD><EFBFBD><EFBFBD>"#;
+  15   │ }
+  16   │ 
+  17   │ fn area(rectangle: &Rectangle) -> u32 {
+  18   │     rectangle.width * rectangle.height
+  19   │ }
+  20 + │ 
+  21 + │ fn perimeter(rectangle: &Rectangle) -> u32 {
+  22 + │     (rectangle.width + rectangle.height) * 2
+  23 + │ }
 ───────┴────────────────────────────────────────────────────────────────────────
--- a/tests/snapshots/output/changes_grid_numbers_rule.snapshot.txt
+++ b/tests/snapshots/output/changes_grid_numbers_rule.snapshot.txt
@@ -1,24 +1,25 @@
 ───────┬────────────────────────────────────────────────────────────────────────
-   1   │ struct Rectangle {
-   2   │     width: u32,
-   3   │     height: u32,
-   4   │ }
-   5   │ 
-   6 _ │ fn main() {
-   7   │     let rect1 = Rectangle { width: 30, height: 50 };
-   8   │ 
-   9   │     println!(
-  10 ~ │         "The perimeter of the rectangle is {} pixels.",
-  11 ~ │         perimeter(&rect1)
-  12   │     );
-  13 + │     println!(r#"This line contains invalid utf8:  "<22><><EFBFBD><EFBFBD><EFBFBD>"#;
-  14   │ }
-  15   │ 
-  16   │ fn area(rectangle: &Rectangle) -> u32 {
-  17   │     rectangle.width * rectangle.height
-  18   │ }
-  19 + │ 
-  20 + │ fn perimeter(rectangle: &Rectangle) -> u32 {
-  21 + │     (rectangle.width + rectangle.height) * 2
-  22 + │ }
+   1 + │ /// A rectangle. First line is changed to prevent a regression of #1869
+   2   │ struct Rectangle {
+   3   │     width: u32,
+   4   │     height: u32,
+   5   │ }
+   6   │ 
+   7 _ │ fn main() {
+   8   │     let rect1 = Rectangle { width: 30, height: 50 };
+   9   │ 
+  10   │     println!(
+  11 ~ │         "The perimeter of the rectangle is {} pixels.",
+  12 ~ │         perimeter(&rect1)
+  13   │     );
+  14 + │     println!(r#"This line contains invalid utf8:  "<22><><EFBFBD><EFBFBD><EFBFBD>"#;
+  15   │ }
+  16   │ 
+  17   │ fn area(rectangle: &Rectangle) -> u32 {
+  18   │     rectangle.width * rectangle.height
+  19   │ }
+  20 + │ 
+  21 + │ fn perimeter(rectangle: &Rectangle) -> u32 {
+  22 + │     (rectangle.width + rectangle.height) * 2
+  23 + │ }
 ───────┴────────────────────────────────────────────────────────────────────────
--- a/tests/snapshots/output/changes_grid_rule.snapshot.txt
+++ b/tests/snapshots/output/changes_grid_rule.snapshot.txt
@@ -1,4 +1,5 @@
 ──┬─────────────────────────────────────────────────────────────────────────────
+ │ /// A rectangle. First line is changed to prevent a regression of #1869
  │ struct Rectangle {
  │     width: u32,
  │     height: u32,
--- a/tests/snapshots/output/changes_header.snapshot.txt
+++ b/tests/snapshots/output/changes_header.snapshot.txt
@@ -1,4 +1,5 @@
  File: sample.rs
+ /// A rectangle. First line is changed to prevent a regression of #1869
  struct Rectangle {
      width: u32,
      height: u32,
--- a/tests/snapshots/output/changes_header_numbers.snapshot.txt
+++ b/tests/snapshots/output/changes_header_numbers.snapshot.txt
@@ -1,23 +1,24 @@
       File: sample.rs
-   1   struct Rectangle {
-   2       width: u32,
-   3       height: u32,
-   4   }
-   5   
-   6 _ fn main() {
-   7       let rect1 = Rectangle { width: 30, height: 50 };
-   8   
-   9       println!(
-  10 ~         "The perimeter of the rectangle is {} pixels.",
-  11 ~         perimeter(&rect1)
-  12       );
-  13 +     println!(r#"This line contains invalid utf8:  "<22><><EFBFBD><EFBFBD><EFBFBD>"#;
-  14   }
-  15   
-  16   fn area(rectangle: &Rectangle) -> u32 {
-  17       rectangle.width * rectangle.height
-  18   }
-  19 + 
-  20 + fn perimeter(rectangle: &Rectangle) -> u32 {
-  21 +     (rectangle.width + rectangle.height) * 2
-  22 + }
+   1 + /// A rectangle. First line is changed to prevent a regression of #1869
+   2   struct Rectangle {
+   3       width: u32,
+   4       height: u32,
+   5   }
+   6   
+   7 _ fn main() {
+   8       let rect1 = Rectangle { width: 30, height: 50 };
+   9   
+  10       println!(
+  11 ~         "The perimeter of the rectangle is {} pixels.",
+  12 ~         perimeter(&rect1)
+  13       );
+  14 +     println!(r#"This line contains invalid utf8:  "<22><><EFBFBD><EFBFBD><EFBFBD>"#;
+  15   }
+  16   
+  17   fn area(rectangle: &Rectangle) -> u32 {
+  18       rectangle.width * rectangle.height
+  19   }
+  20 + 
+  21 + fn perimeter(rectangle: &Rectangle) -> u32 {
+  22 +     (rectangle.width + rectangle.height) * 2
+  23 + }
--- a/tests/snapshots/output/changes_header_numbers_rule.snapshot.txt
+++ b/tests/snapshots/output/changes_header_numbers_rule.snapshot.txt
@@ -1,23 +1,24 @@
       File: sample.rs
-   1   struct Rectangle {
-   2       width: u32,
-   3       height: u32,
-   4   }
-   5   
-   6 _ fn main() {
-   7       let rect1 = Rectangle { width: 30, height: 50 };
-   8   
-   9       println!(
-  10 ~         "The perimeter of the rectangle is {} pixels.",
-  11 ~         perimeter(&rect1)
-  12       );
-  13 +     println!(r#"This line contains invalid utf8:  "<22><><EFBFBD><EFBFBD><EFBFBD>"#;
-  14   }
-  15   
-  16   fn area(rectangle: &Rectangle) -> u32 {
-  17       rectangle.width * rectangle.height
-  18   }
-  19 + 
-  20 + fn perimeter(rectangle: &Rectangle) -> u32 {
-  21 +     (rectangle.width + rectangle.height) * 2
-  22 + }
+   1 + /// A rectangle. First line is changed to prevent a regression of #1869
+   2   struct Rectangle {
+   3       width: u32,
+   4       height: u32,
+   5   }
+   6   
+   7 _ fn main() {
+   8       let rect1 = Rectangle { width: 30, height: 50 };
+   9   
+  10       println!(
+  11 ~         "The perimeter of the rectangle is {} pixels.",
+  12 ~         perimeter(&rect1)
+  13       );
+  14 +     println!(r#"This line contains invalid utf8:  "<22><><EFBFBD><EFBFBD><EFBFBD>"#;
+  15   }
+  16   
+  17   fn area(rectangle: &Rectangle) -> u32 {
+  18       rectangle.width * rectangle.height
+  19   }
+  20 + 
+  21 + fn perimeter(rectangle: &Rectangle) -> u32 {
+  22 +     (rectangle.width + rectangle.height) * 2
+  23 + }
--- a/tests/snapshots/output/changes_header_rule.snapshot.txt
+++ b/tests/snapshots/output/changes_header_rule.snapshot.txt
@@ -1,4 +1,5 @@
  File: sample.rs
+ /// A rectangle. First line is changed to prevent a regression of #1869
  struct Rectangle {
      width: u32,
      height: u32,
--- a/tests/snapshots/output/changes_numbers.snapshot.txt
+++ b/tests/snapshots/output/changes_numbers.snapshot.txt
@@ -1,22 +1,23 @@
-   1   struct Rectangle {
-   2       width: u32,
-   3       height: u32,
-   4   }
-   5   
-   6 _ fn main() {
-   7       let rect1 = Rectangle { width: 30, height: 50 };
-   8   
-   9       println!(
-  10 ~         "The perimeter of the rectangle is {} pixels.",
-  11 ~         perimeter(&rect1)
-  12       );
-  13 +     println!(r#"This line contains invalid utf8:  "<22><><EFBFBD><EFBFBD><EFBFBD>"#;
-  14   }
-  15   
-  16   fn area(rectangle: &Rectangle) -> u32 {
-  17       rectangle.width * rectangle.height
-  18   }
-  19 + 
-  20 + fn perimeter(rectangle: &Rectangle) -> u32 {
-  21 +     (rectangle.width + rectangle.height) * 2
-  22 + }
+   1 + /// A rectangle. First line is changed to prevent a regression of #1869
+   2   struct Rectangle {
+   3       width: u32,
+   4       height: u32,
+   5   }
+   6   
+   7 _ fn main() {
+   8       let rect1 = Rectangle { width: 30, height: 50 };
+   9   
+  10       println!(
+  11 ~         "The perimeter of the rectangle is {} pixels.",
+  12 ~         perimeter(&rect1)
+  13       );
+  14 +     println!(r#"This line contains invalid utf8:  "<22><><EFBFBD><EFBFBD><EFBFBD>"#;
+  15   }
+  16   
+  17   fn area(rectangle: &Rectangle) -> u32 {
+  18       rectangle.width * rectangle.height
+  19   }
+  20 + 
+  21 + fn perimeter(rectangle: &Rectangle) -> u32 {
+  22 +     (rectangle.width + rectangle.height) * 2
+  23 + }
--- a/tests/snapshots/output/changes_numbers_rule.snapshot.txt
+++ b/tests/snapshots/output/changes_numbers_rule.snapshot.txt
@@ -1,22 +1,23 @@
-   1   struct Rectangle {
-   2       width: u32,
-   3       height: u32,
-   4   }
-   5   
-   6 _ fn main() {
-   7       let rect1 = Rectangle { width: 30, height: 50 };
-   8   
-   9       println!(
-  10 ~         "The perimeter of the rectangle is {} pixels.",
-  11 ~         perimeter(&rect1)
-  12       );
-  13 +     println!(r#"This line contains invalid utf8:  "<22><><EFBFBD><EFBFBD><EFBFBD>"#;
-  14   }
-  15   
-  16   fn area(rectangle: &Rectangle) -> u32 {
-  17       rectangle.width * rectangle.height
-  18   }
-  19 + 
-  20 + fn perimeter(rectangle: &Rectangle) -> u32 {
-  21 +     (rectangle.width + rectangle.height) * 2
-  22 + }
+   1 + /// A rectangle. First line is changed to prevent a regression of #1869
+   2   struct Rectangle {
+   3       width: u32,
+   4       height: u32,
+   5   }
+   6   
+   7 _ fn main() {
+   8       let rect1 = Rectangle { width: 30, height: 50 };
+   9   
+  10       println!(
+  11 ~         "The perimeter of the rectangle is {} pixels.",
+  12 ~         perimeter(&rect1)
+  13       );
+  14 +     println!(r#"This line contains invalid utf8:  "<22><><EFBFBD><EFBFBD><EFBFBD>"#;
+  15   }
+  16   
+  17   fn area(rectangle: &Rectangle) -> u32 {
+  18       rectangle.width * rectangle.height
+  19   }
+  20 + 
+  21 + fn perimeter(rectangle: &Rectangle) -> u32 {
+  22 +     (rectangle.width + rectangle.height) * 2
+  23 + }
--- a/tests/snapshots/output/changes_rule.snapshot.txt
+++ b/tests/snapshots/output/changes_rule.snapshot.txt
@@ -1,3 +1,4 @@
+ /// A rectangle. First line is changed to prevent a regression of #1869
  struct Rectangle {
      width: u32,
      height: u32,
--- a/tests/snapshots/output/full.snapshot.txt
+++ b/tests/snapshots/output/full.snapshot.txt
@@ -1,26 +1,27 @@
 ───────┬────────────────────────────────────────────────────────────────────────
       │ File: sample.rs
 ───────┼────────────────────────────────────────────────────────────────────────
-   1   │ struct Rectangle {
-   2   │     width: u32,
-   3   │     height: u32,
-   4   │ }
-   5   │ 
-   6 _ │ fn main() {
-   7   │     let rect1 = Rectangle { width: 30, height: 50 };
-   8   │ 
-   9   │     println!(
-  10 ~ │         "The perimeter of the rectangle is {} pixels.",
-  11 ~ │         perimeter(&rect1)
-  12   │     );
-  13 + │     println!(r#"This line contains invalid utf8:  "<22><><EFBFBD><EFBFBD><EFBFBD>"#;
-  14   │ }
-  15   │ 
-  16   │ fn area(rectangle: &Rectangle) -> u32 {
-  17   │     rectangle.width * rectangle.height
-  18   │ }
-  19 + │ 
-  20 + │ fn perimeter(rectangle: &Rectangle) -> u32 {
-  21 + │     (rectangle.width + rectangle.height) * 2
-  22 + │ }
+   1 + │ /// A rectangle. First line is changed to prevent a regression of #1869
+   2   │ struct Rectangle {
+   3   │     width: u32,
+   4   │     height: u32,
+   5   │ }
+   6   │ 
+   7 _ │ fn main() {
+   8   │     let rect1 = Rectangle { width: 30, height: 50 };
+   9   │ 
+  10   │     println!(
+  11 ~ │         "The perimeter of the rectangle is {} pixels.",
+  12 ~ │         perimeter(&rect1)
+  13   │     );
+  14 + │     println!(r#"This line contains invalid utf8:  "<22><><EFBFBD><EFBFBD><EFBFBD>"#;
+  15   │ }
+  16   │ 
+  17   │ fn area(rectangle: &Rectangle) -> u32 {
+  18   │     rectangle.width * rectangle.height
+  19   │ }
+  20 + │ 
+  21 + │ fn perimeter(rectangle: &Rectangle) -> u32 {
+  22 + │     (rectangle.width + rectangle.height) * 2
+  23 + │ }
 ───────┴────────────────────────────────────────────────────────────────────────
--- a/tests/snapshots/output/grid.snapshot.txt
+++ b/tests/snapshots/output/grid.snapshot.txt
@@ -1,4 +1,5 @@
 ────────────────────────────────────────────────────────────────────────────────
+/// A rectangle. First line is changed to prevent a regression of #1869
 struct Rectangle {
    width: u32,
    height: u32,
--- a/tests/snapshots/output/grid_header.snapshot.txt
+++ b/tests/snapshots/output/grid_header.snapshot.txt
@@ -1,6 +1,7 @@
 ────────────────────────────────────────────────────────────────────────────────
 File: sample.rs
 ────────────────────────────────────────────────────────────────────────────────
+/// A rectangle. First line is changed to prevent a regression of #1869
 struct Rectangle {
    width: u32,
    height: u32,
--- a/tests/snapshots/output/grid_header_numbers.snapshot.txt
+++ b/tests/snapshots/output/grid_header_numbers.snapshot.txt
@@ -1,26 +1,27 @@
 ─────┬──────────────────────────────────────────────────────────────────────────
     │ File: sample.rs
 ─────┼──────────────────────────────────────────────────────────────────────────
-   1 │ struct Rectangle {
-   2 │     width: u32,
-   3 │     height: u32,
-   4 │ }
-   5 │ 
-   6 │ fn main() {
-   7 │     let rect1 = Rectangle { width: 30, height: 50 };
-   8 │ 
-   9 │     println!(
-  10 │         "The perimeter of the rectangle is {} pixels.",
-  11 │         perimeter(&rect1)
-  12 │     );
-  13 │     println!(r#"This line contains invalid utf8:  "<22><><EFBFBD><EFBFBD><EFBFBD>"#;
-  14 │ }
-  15 │ 
-  16 │ fn area(rectangle: &Rectangle) -> u32 {
-  17 │     rectangle.width * rectangle.height
-  18 │ }
-  19 │ 
-  20 │ fn perimeter(rectangle: &Rectangle) -> u32 {
-  21 │     (rectangle.width + rectangle.height) * 2
-  22 │ }
+   1 │ /// A rectangle. First line is changed to prevent a regression of #1869
+   2 │ struct Rectangle {
+   3 │     width: u32,
+   4 │     height: u32,
+   5 │ }
+   6 │ 
+   7 │ fn main() {
+   8 │     let rect1 = Rectangle { width: 30, height: 50 };
+   9 │ 
+  10 │     println!(
+  11 │         "The perimeter of the rectangle is {} pixels.",
+  12 │         perimeter(&rect1)
+  13 │     );
+  14 │     println!(r#"This line contains invalid utf8:  "<22><><EFBFBD><EFBFBD><EFBFBD>"#;
+  15 │ }
+  16 │ 
+  17 │ fn area(rectangle: &Rectangle) -> u32 {
+  18 │     rectangle.width * rectangle.height
+  19 │ }
+  20 │ 
+  21 │ fn perimeter(rectangle: &Rectangle) -> u32 {
+  22 │     (rectangle.width + rectangle.height) * 2
+  23 │ }
 ─────┴──────────────────────────────────────────────────────────────────────────
--- a/tests/snapshots/output/grid_header_numbers_rule.snapshot.txt
+++ b/tests/snapshots/output/grid_header_numbers_rule.snapshot.txt
@@ -1,26 +1,27 @@
 ─────┬──────────────────────────────────────────────────────────────────────────
     │ File: sample.rs
 ─────┼──────────────────────────────────────────────────────────────────────────
-   1 │ struct Rectangle {
-   2 │     width: u32,
-   3 │     height: u32,
-   4 │ }
-   5 │ 
-   6 │ fn main() {
-   7 │     let rect1 = Rectangle { width: 30, height: 50 };
-   8 │ 
-   9 │     println!(
-  10 │         "The perimeter of the rectangle is {} pixels.",
-  11 │         perimeter(&rect1)
-  12 │     );
-  13 │     println!(r#"This line contains invalid utf8:  "<22><><EFBFBD><EFBFBD><EFBFBD>"#;
-  14 │ }
-  15 │ 
-  16 │ fn area(rectangle: &Rectangle) -> u32 {
-  17 │     rectangle.width * rectangle.height
-  18 │ }
-  19 │ 
-  20 │ fn perimeter(rectangle: &Rectangle) -> u32 {
-  21 │     (rectangle.width + rectangle.height) * 2
-  22 │ }
+   1 │ /// A rectangle. First line is changed to prevent a regression of #1869
+   2 │ struct Rectangle {
+   3 │     width: u32,
+   4 │     height: u32,
+   5 │ }
+   6 │ 
+   7 │ fn main() {
+   8 │     let rect1 = Rectangle { width: 30, height: 50 };
+   9 │ 
+  10 │     println!(
+  11 │         "The perimeter of the rectangle is {} pixels.",
+  12 │         perimeter(&rect1)
+  13 │     );
+  14 │     println!(r#"This line contains invalid utf8:  "<22><><EFBFBD><EFBFBD><EFBFBD>"#;
+  15 │ }
+  16 │ 
+  17 │ fn area(rectangle: &Rectangle) -> u32 {
+  18 │     rectangle.width * rectangle.height
+  19 │ }
+  20 │ 
+  21 │ fn perimeter(rectangle: &Rectangle) -> u32 {
+  22 │     (rectangle.width + rectangle.height) * 2
+  23 │ }
 ─────┴──────────────────────────────────────────────────────────────────────────
--- a/tests/snapshots/output/grid_header_rule.snapshot.txt
+++ b/tests/snapshots/output/grid_header_rule.snapshot.txt
@@ -1,6 +1,7 @@
 ────────────────────────────────────────────────────────────────────────────────
 File: sample.rs
 ────────────────────────────────────────────────────────────────────────────────
+/// A rectangle. First line is changed to prevent a regression of #1869
 struct Rectangle {
    width: u32,
    height: u32,
--- a/tests/snapshots/output/grid_numbers.snapshot.txt
+++ b/tests/snapshots/output/grid_numbers.snapshot.txt
@@ -1,24 +1,25 @@
 ─────┬──────────────────────────────────────────────────────────────────────────
-   1 │ struct Rectangle {
-   2 │     width: u32,
-   3 │     height: u32,
-   4 │ }
-   5 │ 
-   6 │ fn main() {
-   7 │     let rect1 = Rectangle { width: 30, height: 50 };
-   8 │ 
-   9 │     println!(
-  10 │         "The perimeter of the rectangle is {} pixels.",
-  11 │         perimeter(&rect1)
-  12 │     );
-  13 │     println!(r#"This line contains invalid utf8:  "<22><><EFBFBD><EFBFBD><EFBFBD>"#;
-  14 │ }
-  15 │ 
-  16 │ fn area(rectangle: &Rectangle) -> u32 {
-  17 │     rectangle.width * rectangle.height
-  18 │ }
-  19 │ 
-  20 │ fn perimeter(rectangle: &Rectangle) -> u32 {
-  21 │     (rectangle.width + rectangle.height) * 2
-  22 │ }
+   1 │ /// A rectangle. First line is changed to prevent a regression of #1869
+   2 │ struct Rectangle {
+   3 │     width: u32,
+   4 │     height: u32,
+   5 │ }
+   6 │ 
+   7 │ fn main() {
+   8 │     let rect1 = Rectangle { width: 30, height: 50 };
+   9 │ 
+  10 │     println!(
+  11 │         "The perimeter of the rectangle is {} pixels.",
+  12 │         perimeter(&rect1)
+  13 │     );
+  14 │     println!(r#"This line contains invalid utf8:  "<22><><EFBFBD><EFBFBD><EFBFBD>"#;
+  15 │ }
+  16 │ 
+  17 │ fn area(rectangle: &Rectangle) -> u32 {
+  18 │     rectangle.width * rectangle.height
+  19 │ }
+  20 │ 
+  21 │ fn perimeter(rectangle: &Rectangle) -> u32 {
+  22 │     (rectangle.width + rectangle.height) * 2
+  23 │ }
 ─────┴──────────────────────────────────────────────────────────────────────────
--- a/tests/snapshots/output/grid_numbers_rule.snapshot.txt
+++ b/tests/snapshots/output/grid_numbers_rule.snapshot.txt
@@ -1,24 +1,25 @@
 ─────┬──────────────────────────────────────────────────────────────────────────
-   1 │ struct Rectangle {
-   2 │     width: u32,
-   3 │     height: u32,
-   4 │ }
-   5 │ 
-   6 │ fn main() {
-   7 │     let rect1 = Rectangle { width: 30, height: 50 };
-   8 │ 
-   9 │     println!(
-  10 │         "The perimeter of the rectangle is {} pixels.",
-  11 │         perimeter(&rect1)
-  12 │     );
-  13 │     println!(r#"This line contains invalid utf8:  "<22><><EFBFBD><EFBFBD><EFBFBD>"#;
-  14 │ }
-  15 │ 
-  16 │ fn area(rectangle: &Rectangle) -> u32 {
-  17 │     rectangle.width * rectangle.height
-  18 │ }
-  19 │ 
-  20 │ fn perimeter(rectangle: &Rectangle) -> u32 {
-  21 │     (rectangle.width + rectangle.height) * 2
-  22 │ }
+   1 │ /// A rectangle. First line is changed to prevent a regression of #1869
+   2 │ struct Rectangle {
+   3 │     width: u32,
+   4 │     height: u32,
+   5 │ }
+   6 │ 
+   7 │ fn main() {
+   8 │     let rect1 = Rectangle { width: 30, height: 50 };
+   9 │ 
+  10 │     println!(
+  11 │         "The perimeter of the rectangle is {} pixels.",
+  12 │         perimeter(&rect1)
+  13 │     );
+  14 │     println!(r#"This line contains invalid utf8:  "<22><><EFBFBD><EFBFBD><EFBFBD>"#;
+  15 │ }
+  16 │ 
+  17 │ fn area(rectangle: &Rectangle) -> u32 {
+  18 │     rectangle.width * rectangle.height
+  19 │ }
+  20 │ 
+  21 │ fn perimeter(rectangle: &Rectangle) -> u32 {
+  22 │     (rectangle.width + rectangle.height) * 2
+  23 │ }
 ─────┴──────────────────────────────────────────────────────────────────────────
--- a/tests/snapshots/output/grid_rule.snapshot.txt
+++ b/tests/snapshots/output/grid_rule.snapshot.txt
@@ -1,4 +1,5 @@
 ────────────────────────────────────────────────────────────────────────────────
+/// A rectangle. First line is changed to prevent a regression of #1869
 struct Rectangle {
    width: u32,
    height: u32,
--- a/tests/snapshots/output/header.snapshot.txt
+++ b/tests/snapshots/output/header.snapshot.txt
@@ -1,4 +1,5 @@
 File: sample.rs
+/// A rectangle. First line is changed to prevent a regression of #1869
 struct Rectangle {
    width: u32,
    height: u32,
--- a/tests/snapshots/output/header_numbers.snapshot.txt
+++ b/tests/snapshots/output/header_numbers.snapshot.txt
@@ -1,23 +1,24 @@
     File: sample.rs
-   1 struct Rectangle {
-   2     width: u32,
-   3     height: u32,
-   4 }
-   5 
-   6 fn main() {
-   7     let rect1 = Rectangle { width: 30, height: 50 };
-   8 
-   9     println!(
-  10         "The perimeter of the rectangle is {} pixels.",
-  11         perimeter(&rect1)
-  12     );
-  13     println!(r#"This line contains invalid utf8:  "<22><><EFBFBD><EFBFBD><EFBFBD>"#;
-  14 }
-  15 
-  16 fn area(rectangle: &Rectangle) -> u32 {
-  17     rectangle.width * rectangle.height
-  18 }
-  19 
-  20 fn perimeter(rectangle: &Rectangle) -> u32 {
-  21     (rectangle.width + rectangle.height) * 2
-  22 }
+   1 /// A rectangle. First line is changed to prevent a regression of #1869
+   2 struct Rectangle {
+   3     width: u32,
+   4     height: u32,
+   5 }
+   6 
+   7 fn main() {
+   8     let rect1 = Rectangle { width: 30, height: 50 };
+   9 
+  10     println!(
+  11         "The perimeter of the rectangle is {} pixels.",
+  12         perimeter(&rect1)
+  13     );
+  14     println!(r#"This line contains invalid utf8:  "<22><><EFBFBD><EFBFBD><EFBFBD>"#;
+  15 }
+  16 
+  17 fn area(rectangle: &Rectangle) -> u32 {
+  18     rectangle.width * rectangle.height
+  19 }
+  20 
+  21 fn perimeter(rectangle: &Rectangle) -> u32 {
+  22     (rectangle.width + rectangle.height) * 2
+  23 }
--- a/tests/snapshots/output/header_numbers_rule.snapshot.txt
+++ b/tests/snapshots/output/header_numbers_rule.snapshot.txt
@@ -1,23 +1,24 @@
     File: sample.rs
-   1 struct Rectangle {
-   2     width: u32,
-   3     height: u32,
-   4 }
-   5 
-   6 fn main() {
-   7     let rect1 = Rectangle { width: 30, height: 50 };
-   8 
-   9     println!(
-  10         "The perimeter of the rectangle is {} pixels.",
-  11         perimeter(&rect1)
-  12     );
-  13     println!(r#"This line contains invalid utf8:  "<22><><EFBFBD><EFBFBD><EFBFBD>"#;
-  14 }
-  15 
-  16 fn area(rectangle: &Rectangle) -> u32 {
-  17     rectangle.width * rectangle.height
-  18 }
-  19 
-  20 fn perimeter(rectangle: &Rectangle) -> u32 {
-  21     (rectangle.width + rectangle.height) * 2
-  22 }
+   1 /// A rectangle. First line is changed to prevent a regression of #1869
+   2 struct Rectangle {
+   3     width: u32,
+   4     height: u32,
+   5 }
+   6 
+   7 fn main() {
+   8     let rect1 = Rectangle { width: 30, height: 50 };
+   9 
+  10     println!(
+  11         "The perimeter of the rectangle is {} pixels.",
+  12         perimeter(&rect1)
+  13     );
+  14     println!(r#"This line contains invalid utf8:  "<22><><EFBFBD><EFBFBD><EFBFBD>"#;
+  15 }
+  16 
+  17 fn area(rectangle: &Rectangle) -> u32 {
+  18     rectangle.width * rectangle.height
+  19 }
+  20 
+  21 fn perimeter(rectangle: &Rectangle) -> u32 {
+  22     (rectangle.width + rectangle.height) * 2
+  23 }
--- a/tests/snapshots/output/header_rule.snapshot.txt
+++ b/tests/snapshots/output/header_rule.snapshot.txt
@@ -1,4 +1,5 @@
 File: sample.rs
+/// A rectangle. First line is changed to prevent a regression of #1869
 struct Rectangle {
    width: u32,
    height: u32,
--- a/tests/snapshots/output/numbers.snapshot.txt
+++ b/tests/snapshots/output/numbers.snapshot.txt
@@ -1,22 +1,23 @@
-   1 struct Rectangle {
-   2     width: u32,
-   3     height: u32,
-   4 }
-   5 
-   6 fn main() {
-   7     let rect1 = Rectangle { width: 30, height: 50 };
-   8 
-   9     println!(
-  10         "The perimeter of the rectangle is {} pixels.",
-  11         perimeter(&rect1)
-  12     );
-  13     println!(r#"This line contains invalid utf8:  "<22><><EFBFBD><EFBFBD><EFBFBD>"#;
-  14 }
-  15 
-  16 fn area(rectangle: &Rectangle) -> u32 {
-  17     rectangle.width * rectangle.height
-  18 }
-  19 
-  20 fn perimeter(rectangle: &Rectangle) -> u32 {
-  21     (rectangle.width + rectangle.height) * 2
-  22 }
+   1 /// A rectangle. First line is changed to prevent a regression of #1869
+   2 struct Rectangle {
+   3     width: u32,
+   4     height: u32,
+   5 }
+   6 
+   7 fn main() {
+   8     let rect1 = Rectangle { width: 30, height: 50 };
+   9 
+  10     println!(
+  11         "The perimeter of the rectangle is {} pixels.",
+  12         perimeter(&rect1)
+  13     );
+  14     println!(r#"This line contains invalid utf8:  "<22><><EFBFBD><EFBFBD><EFBFBD>"#;
+  15 }
+  16 
+  17 fn area(rectangle: &Rectangle) -> u32 {
+  18     rectangle.width * rectangle.height
+  19 }
+  20 
+  21 fn perimeter(rectangle: &Rectangle) -> u32 {
+  22     (rectangle.width + rectangle.height) * 2
+  23 }
--- a/tests/snapshots/output/numbers_rule.snapshot.txt
+++ b/tests/snapshots/output/numbers_rule.snapshot.txt
@@ -1,22 +1,23 @@
-   1 struct Rectangle {
-   2     width: u32,
-   3     height: u32,
-   4 }
-   5 
-   6 fn main() {
-   7     let rect1 = Rectangle { width: 30, height: 50 };
-   8 
-   9     println!(
-  10         "The perimeter of the rectangle is {} pixels.",
-  11         perimeter(&rect1)
-  12     );
-  13     println!(r#"This line contains invalid utf8:  "<22><><EFBFBD><EFBFBD><EFBFBD>"#;
-  14 }
-  15 
-  16 fn area(rectangle: &Rectangle) -> u32 {
-  17     rectangle.width * rectangle.height
-  18 }
-  19 
-  20 fn perimeter(rectangle: &Rectangle) -> u32 {
-  21     (rectangle.width + rectangle.height) * 2
-  22 }
+   1 /// A rectangle. First line is changed to prevent a regression of #1869
+   2 struct Rectangle {
+   3     width: u32,
+   4     height: u32,
+   5 }
+   6 
+   7 fn main() {
+   8     let rect1 = Rectangle { width: 30, height: 50 };
+   9 
+  10     println!(
+  11         "The perimeter of the rectangle is {} pixels.",
+  12         perimeter(&rect1)
+  13     );
+  14     println!(r#"This line contains invalid utf8:  "<22><><EFBFBD><EFBFBD><EFBFBD>"#;
+  15 }
+  16 
+  17 fn area(rectangle: &Rectangle) -> u32 {
+  18     rectangle.width * rectangle.height
+  19 }
+  20 
+  21 fn perimeter(rectangle: &Rectangle) -> u32 {
+  22     (rectangle.width + rectangle.height) * 2
+  23 }
--- a/tests/snapshots/output/plain.snapshot.txt
+++ b/tests/snapshots/output/plain.snapshot.txt
@@ -1,3 +1,4 @@
+/// A rectangle. First line is changed to prevent a regression of #1869
 struct Rectangle {
    width: u32,
    height: u32,
--- a/tests/snapshots/output/rule.snapshot.txt
+++ b/tests/snapshots/output/rule.snapshot.txt
@@ -1,3 +1,4 @@
+/// A rectangle. First line is changed to prevent a regression of #1869
 struct Rectangle {
    width: u32,
    height: u32,
--- a/tests/snapshots/sample.modified.rs
+++ b/tests/snapshots/sample.modified.rs
@@ -1,3 +1,4 @@
+/// A rectangle. First line is changed to prevent a regression of #1869
 struct Rectangle {
    width: u32,
    height: u32,
--- a/tests/syntax-tests/BatTestCustomAssets.sublime-syntax
+++ b/tests/syntax-tests/BatTestCustomAssets.sublime-syntax
@@ -0,0 +1,21 @@
+%YAML 1.2
+---
+# http://www.sublimetext.com/docs/3/syntax.html
+name: BatTestCustomAssets
+file_extensions:
+  - battestcustomassets
+scope: source.battestcustomassets
+
+# This syntax is used to test if custom assets work with bat.
+# The way it works is that this syntax is only allowed to be included with
+# custom assets. That way it is easy to test if custom assets are used (and works)
+# or not.
+#
+# This syntax is based on CpuInfo.sublime-syntax.
+
+contexts:
+  main:
+    - match: '^([^:]+)\w*:\w*(.*)$'
+      captures:
+        1: keyword.other.battestcustomassets-key
+        2: string.other.battestcustomassets-value
--- a/tests/syntax-tests/create_highlighted_versions.py
+++ b/tests/syntax-tests/create_highlighted_versions.py
@@ -6,7 +6,7 @@ import sys
 import os.path as path
 import os
 import argparse
-
+from multiprocessing import Pool

 BAT_OPTIONS = [
    "--no-config",
@@ -38,64 +38,79 @@ def get_options(source):
    return options


+def create_highlighted_version(args):
+    output_basepath, source = args
+    env = os.environ.copy()
+    env.pop("BAT_CACHE_PATH", None)
+    env.pop("BAT_CONFIG_DIR", None)
+    env.pop("BAT_CONFIG_PATH", None)
+    env.pop("BAT_OPTS", None)
+    env.pop("BAT_PAGER", None)
+    env.pop("BAT_STYLE", None)
+    env.pop("BAT_TABS", None)
+    env.pop("BAT_THEME", None)
+    env.pop("NO_COLOR", None)
+    env.pop("PAGER", None)
+    env["COLORTERM"] = "truecolor"  # make sure to output 24bit colors
+
+    source_dirname = path.basename(path.dirname(source))
+    source_filename = path.basename(source)
+
+    if source_filename in SKIP_FILENAMES:
+        return
+
+    bat_output = subprocess.check_output(
+        ["bat"] + get_options(source) + [source],
+        stderr=subprocess.PIPE,
+        env=env,
+    )
+
+    output_dir = path.join(output_basepath, source_dirname)
+    output_path = path.join(output_dir, source_filename)
+
+    os.makedirs(output_dir, exist_ok=True)
+
+    with open(output_path, "wb") as output_file:
+        output_file.write(bat_output)
+
+    print("Created '{}'".format(output_path))
+
+
 def create_highlighted_versions(output_basepath):
    root = os.path.dirname(os.path.abspath(__file__))
-    sources = path.join(root, "source", "*")
+    source_paths = path.join(root, "source", "*")

-    for source in glob.glob(path.join(sources, "*")) + glob.glob(
-        path.join(sources, ".*")
+    sources = []
+    for source in glob.glob(path.join(source_paths, "*")) + glob.glob(
+        path.join(source_paths, ".*")
    ):
-        try:
-            env = os.environ.copy()
-            env.pop("PAGER", None)
-            env.pop("BAT_PAGER", None)
-            env.pop("BAT_CONFIG_PATH", None)
-            env.pop("BAT_STYLE", None)
-            env.pop("BAT_THEME", None)
-            env.pop("BAT_TABS", None)
-            env["COLORTERM"] = "truecolor"  # make sure to output 24bit colors
+        sources.append((output_basepath, source))

-            source_dirname = path.basename(path.dirname(source))
-            source_filename = path.basename(source)
+    try:
+        with Pool() as p:
+            p.map(create_highlighted_version, sources)
+    except subprocess.CalledProcessError as err:
+        print(
+            "=== Error: Could not highlight source file '{}".format(source),
+            file=sys.stderr,
+        )
+        print(
+            "=== bat stdout:\n{}".format(err.stdout.decode("utf-8")),
+            file=sys.stderr,
+        )
+        print(
+            "=== bat stderr:\n{}".format(err.stderr.decode("utf-8")),
+            file=sys.stderr,
+        )
+        return False
+    except FileNotFoundError:
+        print(
+            "Error: Could not execute 'bat'. Please make sure that the executable "
+            "is available on the PATH."
+        )
+        return False

-            if source_filename in SKIP_FILENAMES:
-                continue
-
-            bat_output = subprocess.check_output(
-                ["bat"] + get_options(source) + [source],
-                stderr=subprocess.PIPE,
-                env=env,
-            )
-
-            output_dir = path.join(output_basepath, source_dirname)
-            output_path = path.join(output_dir, source_filename)
-
-            os.makedirs(output_dir, exist_ok=True)
-
-            with open(output_path, "wb") as output_file:
-                output_file.write(bat_output)
-
-            print("Created '{}'".format(output_path))
-        except subprocess.CalledProcessError as err:
-            print(
-                "=== Error: Could not highlight source file '{}".format(source),
-                file=sys.stderr,
-            )
-            print(
-                "=== bat stdout:\n{}".format(err.stdout.decode("utf-8")),
-                file=sys.stderr,
-            )
-            print(
-                "=== bat stderr:\n{}".format(err.stderr.decode("utf-8")),
-                file=sys.stderr,
-            )
-            sys.exit(1)
-        except FileNotFoundError:
-            print(
-                "Error: Could not execute 'bat'. Please make sure that the executable "
-                "is available on the PATH."
-            )
-            sys.exit(1)
+    return True


 if __name__ == "__main__":
@@ -114,4 +129,5 @@ if __name__ == "__main__":

    args = parser.parse_args()

-    create_highlighted_versions(output_basepath=args.output)
+    if not create_highlighted_versions(output_basepath=args.output):
+        sys.exit(1)
--- a/tests/syntax-tests/highlighted/BatTestCustomAssets/NoColorsUnlessCustomAssetsAreUsed.battestcustomassets
+++ b/tests/syntax-tests/highlighted/BatTestCustomAssets/NoColorsUnlessCustomAssetsAreUsed.battestcustomassets
@@ -0,0 +1,2 @@
+[38;2;248;248;242mcustom assets : 0[0m
+[38;2;248;248;242mare           : the best[0m
--- a/tests/syntax-tests/highlighted/CpuInfo/test.CpuInfo
+++ b/tests/syntax-tests/highlighted/CpuInfo/test.CpuInfo
@@ -1,45 +0,0 @@
-[38;2;248;248;242mprocessor    : 0[0m
-[38;2;248;248;242mmodel name    : ARMv7 Processor rev 3 (v7l)[0m
-[38;2;248;248;242mBogoMIPS    : 270.00[0m
-[38;2;248;248;242mFeatures    : half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm crc32[0m
-[38;2;248;248;242mCPU implementer    : 0x41[0m
-[38;2;248;248;242mCPU architecture: 7[0m
-[38;2;248;248;242mCPU variant    : 0x0[0m
-[38;2;248;248;242mCPU part    : 0xd08[0m
-[38;2;248;248;242mCPU revision    : 3[0m
-
-[38;2;248;248;242mprocessor    : 1[0m
-[38;2;248;248;242mmodel name    : ARMv7 Processor rev 3 (v7l)[0m
-[38;2;248;248;242mBogoMIPS    : 270.00[0m
-[38;2;248;248;242mFeatures    : half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm crc32[0m
-[38;2;248;248;242mCPU implementer    : 0x41[0m
-[38;2;248;248;242mCPU architecture: 7[0m
-[38;2;248;248;242mCPU variant    : 0x0[0m
-[38;2;248;248;242mCPU part    : 0xd08[0m
-[38;2;248;248;242mCPU revision    : 3[0m
-
-[38;2;248;248;242mprocessor    : 2[0m
-[38;2;248;248;242mmodel name    : ARMv7 Processor rev 3 (v7l)[0m
-[38;2;248;248;242mBogoMIPS    : 270.00[0m
-[38;2;248;248;242mFeatures    : half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm crc32[0m
-[38;2;248;248;242mCPU implementer    : 0x41[0m
-[38;2;248;248;242mCPU architecture: 7[0m
-[38;2;248;248;242mCPU variant    : 0x0[0m
-[38;2;248;248;242mCPU part    : 0xd08[0m
-[38;2;248;248;242mCPU revision    : 3[0m
-
-[38;2;248;248;242mprocessor    : 3[0m
-[38;2;248;248;242mmodel name    : ARMv7 Processor rev 3 (v7l)[0m
-[38;2;248;248;242mBogoMIPS    : 270.00[0m
-[38;2;248;248;242mFeatures    : half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm crc32[0m
-[38;2;248;248;242mCPU implementer    : 0x41[0m
-[38;2;248;248;242mCPU architecture: 7[0m
-[38;2;248;248;242mCPU variant    : 0x0[0m
-[38;2;248;248;242mCPU part    : 0xd08[0m
-[38;2;248;248;242mCPU revision    : 3[0m
-
-[38;2;248;248;242mHardware    : BCM2711[0m
-[38;2;248;248;242mRevision    : b03111[0m
-[38;2;248;248;242mSerial        : 1000000095fd9fc5[0m
-[38;2;248;248;242mModel        : Raspberry Pi 4 Model B Rev 1.1[0m
-
--- a/tests/syntax-tests/highlighted/CpuInfo/test.cpuinfo
+++ b/tests/syntax-tests/highlighted/CpuInfo/test.cpuinfo
@@ -0,0 +1,45 @@
+[38;2;249;38;114mprocessor    [0m[38;2;248;248;242m:[0m[38;2;230;219;116m 0[0m
+[38;2;249;38;114mmodel name    [0m[38;2;248;248;242m:[0m[38;2;230;219;116m ARMv7 Processor rev 3 (v7l)[0m
+[38;2;249;38;114mBogoMIPS    [0m[38;2;248;248;242m:[0m[38;2;230;219;116m 270.00[0m
+[38;2;249;38;114mFeatures    [0m[38;2;248;248;242m:[0m[38;2;230;219;116m half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm crc32[0m
+[38;2;249;38;114mCPU implementer    [0m[38;2;248;248;242m:[0m[38;2;230;219;116m 0x41[0m
+[38;2;249;38;114mCPU architecture[0m[38;2;248;248;242m:[0m[38;2;230;219;116m 7[0m
+[38;2;249;38;114mCPU variant    [0m[38;2;248;248;242m:[0m[38;2;230;219;116m 0x0[0m
+[38;2;249;38;114mCPU part    [0m[38;2;248;248;242m:[0m[38;2;230;219;116m 0xd08[0m
+[38;2;249;38;114mCPU revision    [0m[38;2;248;248;242m:[0m[38;2;230;219;116m 3[0m
+
+[38;2;249;38;114mprocessor    [0m[38;2;248;248;242m:[0m[38;2;230;219;116m 1[0m
+[38;2;249;38;114mmodel name    [0m[38;2;248;248;242m:[0m[38;2;230;219;116m ARMv7 Processor rev 3 (v7l)[0m
+[38;2;249;38;114mBogoMIPS    [0m[38;2;248;248;242m:[0m[38;2;230;219;116m 270.00[0m
+[38;2;249;38;114mFeatures    [0m[38;2;248;248;242m:[0m[38;2;230;219;116m half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm crc32[0m
+[38;2;249;38;114mCPU implementer    [0m[38;2;248;248;242m:[0m[38;2;230;219;116m 0x41[0m
+[38;2;249;38;114mCPU architecture[0m[38;2;248;248;242m:[0m[38;2;230;219;116m 7[0m
+[38;2;249;38;114mCPU variant    [0m[38;2;248;248;242m:[0m[38;2;230;219;116m 0x0[0m
+[38;2;249;38;114mCPU part    [0m[38;2;248;248;242m:[0m[38;2;230;219;116m 0xd08[0m
+[38;2;249;38;114mCPU revision    [0m[38;2;248;248;242m:[0m[38;2;230;219;116m 3[0m
+
+[38;2;249;38;114mprocessor    [0m[38;2;248;248;242m:[0m[38;2;230;219;116m 2[0m
+[38;2;249;38;114mmodel name    [0m[38;2;248;248;242m:[0m[38;2;230;219;116m ARMv7 Processor rev 3 (v7l)[0m
+[38;2;249;38;114mBogoMIPS    [0m[38;2;248;248;242m:[0m[38;2;230;219;116m 270.00[0m
+[38;2;249;38;114mFeatures    [0m[38;2;248;248;242m:[0m[38;2;230;219;116m half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm crc32[0m
+[38;2;249;38;114mCPU implementer    [0m[38;2;248;248;242m:[0m[38;2;230;219;116m 0x41[0m
+[38;2;249;38;114mCPU architecture[0m[38;2;248;248;242m:[0m[38;2;230;219;116m 7[0m
+[38;2;249;38;114mCPU variant    [0m[38;2;248;248;242m:[0m[38;2;230;219;116m 0x0[0m
+[38;2;249;38;114mCPU part    [0m[38;2;248;248;242m:[0m[38;2;230;219;116m 0xd08[0m
+[38;2;249;38;114mCPU revision    [0m[38;2;248;248;242m:[0m[38;2;230;219;116m 3[0m
+
+[38;2;249;38;114mprocessor    [0m[38;2;248;248;242m:[0m[38;2;230;219;116m 3[0m
+[38;2;249;38;114mmodel name    [0m[38;2;248;248;242m:[0m[38;2;230;219;116m ARMv7 Processor rev 3 (v7l)[0m
+[38;2;249;38;114mBogoMIPS    [0m[38;2;248;248;242m:[0m[38;2;230;219;116m 270.00[0m
+[38;2;249;38;114mFeatures    [0m[38;2;248;248;242m:[0m[38;2;230;219;116m half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm crc32[0m
+[38;2;249;38;114mCPU implementer    [0m[38;2;248;248;242m:[0m[38;2;230;219;116m 0x41[0m
+[38;2;249;38;114mCPU architecture[0m[38;2;248;248;242m:[0m[38;2;230;219;116m 7[0m
+[38;2;249;38;114mCPU variant    [0m[38;2;248;248;242m:[0m[38;2;230;219;116m 0x0[0m
+[38;2;249;38;114mCPU part    [0m[38;2;248;248;242m:[0m[38;2;230;219;116m 0xd08[0m
+[38;2;249;38;114mCPU revision    [0m[38;2;248;248;242m:[0m[38;2;230;219;116m 3[0m
+
+[38;2;249;38;114mHardware    [0m[38;2;248;248;242m:[0m[38;2;230;219;116m BCM2711[0m
+[38;2;249;38;114mRevision    [0m[38;2;248;248;242m:[0m[38;2;230;219;116m b03111[0m
+[38;2;249;38;114mSerial        [0m[38;2;248;248;242m:[0m[38;2;230;219;116m 1000000095fd9fc5[0m
+[38;2;249;38;114mModel        [0m[38;2;248;248;242m:[0m[38;2;230;219;116m Raspberry Pi 4 Model B Rev 1.1[0m
+
--- a/tests/syntax-tests/highlighted/Ignored
+++ b/tests/syntax-tests/highlighted/Ignored
@@ -0,0 +1 @@
+[38;2;117;113;94m//[0m[38;2;117;113;94m foo.ucf-dist (Debian ucf backup) should highlight same as foo[0m
--- a/tests/syntax-tests/highlighted/Ignored
+++ b/tests/syntax-tests/highlighted/Ignored
@@ -0,0 +1 @@
+[38;2;117;113;94m//[0m[38;2;117;113;94m foo.ucf-new (Debian ucf backup) should highlight same as foo[0m
--- a/tests/syntax-tests/highlighted/Ignored
+++ b/tests/syntax-tests/highlighted/Ignored
@@ -0,0 +1 @@
+[38;2;117;113;94m//[0m[38;2;117;113;94m foo.ucf-old (Debian ucf backup) should highlight same as foo[0m
--- a/tests/syntax-tests/highlighted/MemInfo/test.MemInfo
+++ b/tests/syntax-tests/highlighted/MemInfo/test.MemInfo
@@ -1,53 +0,0 @@
-[38;2;248;248;242mMemTotal:        1004892 kB[0m
-[38;2;248;248;242mMemFree:          109424 kB[0m
-[38;2;248;248;242mMemAvailable:     498032 kB[0m
-[38;2;248;248;242mBuffers:           66360 kB[0m
-[38;2;248;248;242mCached:           448344 kB[0m
-[38;2;248;248;242mSwapCached:            0 kB[0m
-[38;2;248;248;242mActive:           547076 kB[0m
-[38;2;248;248;242mInactive:         196864 kB[0m
-[38;2;248;248;242mActive(anon):     249956 kB[0m
-[38;2;248;248;242mInactive(anon):     7328 kB[0m
-[38;2;248;248;242mActive(file):     297120 kB[0m
-[38;2;248;248;242mInactive(file):   189536 kB[0m
-[38;2;248;248;242mUnevictable:       18516 kB[0m
-[38;2;248;248;242mMlocked:           18516 kB[0m
-[38;2;248;248;242mSwapTotal:             0 kB[0m
-[38;2;248;248;242mSwapFree:              0 kB[0m
-[38;2;248;248;242mDirty:               276 kB[0m
-[38;2;248;248;242mWriteback:             0 kB[0m
-[38;2;248;248;242mAnonPages:        247780 kB[0m
-[38;2;248;248;242mMapped:           168472 kB[0m
-[38;2;248;248;242mShmem:             19860 kB[0m
-[38;2;248;248;242mKReclaimable:      59128 kB[0m
-[38;2;248;248;242mSlab:             108616 kB[0m
-[38;2;248;248;242mSReclaimable:      59128 kB[0m
-[38;2;248;248;242mSUnreclaim:        49488 kB[0m
-[38;2;248;248;242mKernelStack:        2060 kB[0m
-[38;2;248;248;242mPageTables:         4232 kB[0m
-[38;2;248;248;242mNFS_Unstable:          0 kB[0m
-[38;2;248;248;242mBounce:                0 kB[0m
-[38;2;248;248;242mWritebackTmp:          0 kB[0m
-[38;2;248;248;242mCommitLimit:      502444 kB[0m
-[38;2;248;248;242mCommitted_AS:     678300 kB[0m
-[38;2;248;248;242mVmallocTotal:   34359738367 kB[0m
-[38;2;248;248;242mVmallocUsed:       10756 kB[0m
-[38;2;248;248;242mVmallocChunk:          0 kB[0m
-[38;2;248;248;242mPercpu:              784 kB[0m
-[38;2;248;248;242mHardwareCorrupted:     0 kB[0m
-[38;2;248;248;242mAnonHugePages:         0 kB[0m
-[38;2;248;248;242mShmemHugePages:        0 kB[0m
-[38;2;248;248;242mShmemPmdMapped:        0 kB[0m
-[38;2;248;248;242mFileHugePages:         0 kB[0m
-[38;2;248;248;242mFilePmdMapped:         0 kB[0m
-[38;2;248;248;242mCmaTotal:              0 kB[0m
-[38;2;248;248;242mCmaFree:               0 kB[0m
-[38;2;248;248;242mHugePages_Total:       0[0m
-[38;2;248;248;242mHugePages_Free:        0[0m
-[38;2;248;248;242mHugePages_Rsvd:        0[0m
-[38;2;248;248;242mHugePages_Surp:        0[0m
-[38;2;248;248;242mHugepagesize:       2048 kB[0m
-[38;2;248;248;242mHugetlb:               0 kB[0m
-[38;2;248;248;242mDirectMap4k:      118764 kB[0m
-[38;2;248;248;242mDirectMap2M:      929792 kB[0m
-[38;2;248;248;242mDirectMap1G:           0 kB[0m
--- a/tests/syntax-tests/highlighted/MemInfo/test.meminfo
+++ b/tests/syntax-tests/highlighted/MemInfo/test.meminfo
@@ -0,0 +1,53 @@
+[38;2;249;38;114mMemTotal[0m[38;2;248;248;242m:[0m[38;2;230;219;116m        1004892 kB[0m
+[38;2;249;38;114mMemFree[0m[38;2;248;248;242m:[0m[38;2;230;219;116m          109424 kB[0m
+[38;2;249;38;114mMemAvailable[0m[38;2;248;248;242m:[0m[38;2;230;219;116m     498032 kB[0m
+[38;2;249;38;114mBuffers[0m[38;2;248;248;242m:[0m[38;2;230;219;116m           66360 kB[0m
+[38;2;249;38;114mCached[0m[38;2;248;248;242m:[0m[38;2;230;219;116m           448344 kB[0m
+[38;2;249;38;114mSwapCached[0m[38;2;248;248;242m:[0m[38;2;230;219;116m            0 kB[0m
+[38;2;249;38;114mActive[0m[38;2;248;248;242m:[0m[38;2;230;219;116m           547076 kB[0m
+[38;2;249;38;114mInactive[0m[38;2;248;248;242m:[0m[38;2;230;219;116m         196864 kB[0m
+[38;2;249;38;114mActive(anon)[0m[38;2;248;248;242m:[0m[38;2;230;219;116m     249956 kB[0m
+[38;2;249;38;114mInactive(anon)[0m[38;2;248;248;242m:[0m[38;2;230;219;116m     7328 kB[0m
+[38;2;249;38;114mActive(file)[0m[38;2;248;248;242m:[0m[38;2;230;219;116m     297120 kB[0m
+[38;2;249;38;114mInactive(file)[0m[38;2;248;248;242m:[0m[38;2;230;219;116m   189536 kB[0m
+[38;2;249;38;114mUnevictable[0m[38;2;248;248;242m:[0m[38;2;230;219;116m       18516 kB[0m
+[38;2;249;38;114mMlocked[0m[38;2;248;248;242m:[0m[38;2;230;219;116m           18516 kB[0m
+[38;2;249;38;114mSwapTotal[0m[38;2;248;248;242m:[0m[38;2;230;219;116m             0 kB[0m
+[38;2;249;38;114mSwapFree[0m[38;2;248;248;242m:[0m[38;2;230;219;116m              0 kB[0m
+[38;2;249;38;114mDirty[0m[38;2;248;248;242m:[0m[38;2;230;219;116m               276 kB[0m
+[38;2;249;38;114mWriteback[0m[38;2;248;248;242m:[0m[38;2;230;219;116m             0 kB[0m
+[38;2;249;38;114mAnonPages[0m[38;2;248;248;242m:[0m[38;2;230;219;116m        247780 kB[0m
+[38;2;249;38;114mMapped[0m[38;2;248;248;242m:[0m[38;2;230;219;116m           168472 kB[0m
+[38;2;249;38;114mShmem[0m[38;2;248;248;242m:[0m[38;2;230;219;116m             19860 kB[0m
+[38;2;249;38;114mKReclaimable[0m[38;2;248;248;242m:[0m[38;2;230;219;116m      59128 kB[0m
+[38;2;249;38;114mSlab[0m[38;2;248;248;242m:[0m[38;2;230;219;116m             108616 kB[0m
+[38;2;249;38;114mSReclaimable[0m[38;2;248;248;242m:[0m[38;2;230;219;116m      59128 kB[0m
+[38;2;249;38;114mSUnreclaim[0m[38;2;248;248;242m:[0m[38;2;230;219;116m        49488 kB[0m
+[38;2;249;38;114mKernelStack[0m[38;2;248;248;242m:[0m[38;2;230;219;116m        2060 kB[0m
+[38;2;249;38;114mPageTables[0m[38;2;248;248;242m:[0m[38;2;230;219;116m         4232 kB[0m
+[38;2;249;38;114mNFS_Unstable[0m[38;2;248;248;242m:[0m[38;2;230;219;116m          0 kB[0m
+[38;2;249;38;114mBounce[0m[38;2;248;248;242m:[0m[38;2;230;219;116m                0 kB[0m
+[38;2;249;38;114mWritebackTmp[0m[38;2;248;248;242m:[0m[38;2;230;219;116m          0 kB[0m
+[38;2;249;38;114mCommitLimit[0m[38;2;248;248;242m:[0m[38;2;230;219;116m      502444 kB[0m
+[38;2;249;38;114mCommitted_AS[0m[38;2;248;248;242m:[0m[38;2;230;219;116m     678300 kB[0m
+[38;2;249;38;114mVmallocTotal[0m[38;2;248;248;242m:[0m[38;2;230;219;116m   34359738367 kB[0m
+[38;2;249;38;114mVmallocUsed[0m[38;2;248;248;242m:[0m[38;2;230;219;116m       10756 kB[0m
+[38;2;249;38;114mVmallocChunk[0m[38;2;248;248;242m:[0m[38;2;230;219;116m          0 kB[0m
+[38;2;249;38;114mPercpu[0m[38;2;248;248;242m:[0m[38;2;230;219;116m              784 kB[0m
+[38;2;249;38;114mHardwareCorrupted[0m[38;2;248;248;242m:[0m[38;2;230;219;116m     0 kB[0m
+[38;2;249;38;114mAnonHugePages[0m[38;2;248;248;242m:[0m[38;2;230;219;116m         0 kB[0m
+[38;2;249;38;114mShmemHugePages[0m[38;2;248;248;242m:[0m[38;2;230;219;116m        0 kB[0m
+[38;2;249;38;114mShmemPmdMapped[0m[38;2;248;248;242m:[0m[38;2;230;219;116m        0 kB[0m
+[38;2;249;38;114mFileHugePages[0m[38;2;248;248;242m:[0m[38;2;230;219;116m         0 kB[0m
+[38;2;249;38;114mFilePmdMapped[0m[38;2;248;248;242m:[0m[38;2;230;219;116m         0 kB[0m
+[38;2;249;38;114mCmaTotal[0m[38;2;248;248;242m:[0m[38;2;230;219;116m              0 kB[0m
+[38;2;249;38;114mCmaFree[0m[38;2;248;248;242m:[0m[38;2;230;219;116m               0 kB[0m
+[38;2;249;38;114mHugePages_Total[0m[38;2;248;248;242m:[0m[38;2;230;219;116m       0[0m
+[38;2;249;38;114mHugePages_Free[0m[38;2;248;248;242m:[0m[38;2;230;219;116m        0[0m
+[38;2;249;38;114mHugePages_Rsvd[0m[38;2;248;248;242m:[0m[38;2;230;219;116m        0[0m
+[38;2;249;38;114mHugePages_Surp[0m[38;2;248;248;242m:[0m[38;2;230;219;116m        0[0m
+[38;2;249;38;114mHugepagesize[0m[38;2;248;248;242m:[0m[38;2;230;219;116m       2048 kB[0m
+[38;2;249;38;114mHugetlb[0m[38;2;248;248;242m:[0m[38;2;230;219;116m               0 kB[0m
+[38;2;249;38;114mDirectMap4k[0m[38;2;248;248;242m:[0m[38;2;230;219;116m      118764 kB[0m
+[38;2;249;38;114mDirectMap2M[0m[38;2;248;248;242m:[0m[38;2;230;219;116m      929792 kB[0m
+[38;2;249;38;114mDirectMap1G[0m[38;2;248;248;242m:[0m[38;2;230;219;116m           0 kB[0m
--- a/tests/syntax-tests/highlighted/Racket/test.rkt
+++ b/tests/syntax-tests/highlighted/Racket/test.rkt
@@ -0,0 +1,56 @@
+[38;2;248;248;242m#lang racket[0m
+
+[38;2;248;248;242m([0m[38;2;249;38;114mrequire[0m[38;2;248;248;242m [0m[38;2;248;248;242m"main.rkt" rackunit)[0m
+
+[38;2;117;113;94m;; Helper for test cases with multiple outputs[0m
+[38;2;117;113;94m;; See: https://stackoverflow.com/questions/41081395/unit-testing-in-racket-with-multiple-outputs[0m
+[38;2;248;248;242m(define-syntax check-values-equal?[0m
+[38;2;248;248;242m  (syntax-rules ()[0m
+[38;2;248;248;242m    [(_ a b) (check-equal? (call-with-values (thunk a) list) b)]))[0m
+
+
+[38;2;117;113;94m;; Named POSIX semaphores[0m
+[38;2;248;248;242m(test-begin[0m
+[38;2;248;248;242m  [0m[38;2;248;248;242m([0m[38;2;249;38;114mdefine[0m[38;2;248;248;242m [0m[38;2;166;226;46mtest-sem-name[0m[38;2;248;248;242m [0m[38;2;248;248;242m"/test-nix-[0m[38;2;190;132;255m1[0m[38;2;248;248;242m")[0m
+
+[38;2;248;248;242m  [0m[38;2;117;113;94m;; Unlink if already exists[0m
+[38;2;248;248;242m  (sem-unlink test-sem-name)[0m
+
+[38;2;248;248;242m  [0m[38;2;117;113;94m;; Open and unlink[0m
+[38;2;248;248;242m  [0m[38;2;248;248;242m([0m[38;2;249;38;114mdefine[0m[38;2;248;248;242m [0m[38;2;166;226;46mtest-sem-p[0m[38;2;248;248;242m [0m[38;2;248;248;242m(sem-open test-sem-name (+ O_CREAT O_EXCL)))[0m
+[38;2;248;248;242m  (check-not-false test-sem-p)[0m
+[38;2;248;248;242m  (check-not-equal? test-sem-p (void))[0m
+[38;2;248;248;242m  (check-exn exn:fail?[0m
+[38;2;248;248;242m             [0m[38;2;248;248;242m([0m[38;2;249;38;114mlambda[0m[38;2;248;248;242m [0m[38;2;248;248;242m() (sem-open test-sem-name (+ O_CREAT O_EXCL)))[0m
+[38;2;248;248;242m             [0m[38;2;230;219;116m"Permission denied"[0m[38;2;248;248;242m)[0m
+[38;2;248;248;242m  (check-exn exn:fail?[0m
+[38;2;248;248;242m             [0m[38;2;248;248;242m([0m[38;2;249;38;114mlambda[0m[38;2;248;248;242m [0m[38;2;248;248;242m() (sem-open test-sem-name (+ O_CREAT O_EXCL))))[0m
+
+[38;2;248;248;242m  [0m[38;2;117;113;94m;; Change values[0m
+[38;2;248;248;242m  (check-equal? (sem-getvalue test-sem-p) [0m[38;2;190;132;255m0[0m[38;2;248;248;242m)[0m
+[38;2;248;248;242m  (sem-post test-sem-p)[0m
+[38;2;248;248;242m  (check-equal? (sem-getvalue test-sem-p) [0m[38;2;190;132;255m1[0m[38;2;248;248;242m)[0m
+[38;2;248;248;242m  (sem-wait test-sem-p)[0m
+[38;2;248;248;242m  (check-equal? (sem-getvalue test-sem-p) [0m[38;2;190;132;255m0[0m[38;2;248;248;242m)[0m
+[38;2;248;248;242m  (sem-post test-sem-p)[0m
+[38;2;248;248;242m  (check-equal? (sem-getvalue test-sem-p) [0m[38;2;190;132;255m1[0m[38;2;248;248;242m)[0m
+[38;2;248;248;242m  (sem-post test-sem-p)[0m
+[38;2;248;248;242m  (check-equal? (sem-getvalue test-sem-p) [0m[38;2;190;132;255m2[0m[38;2;248;248;242m)[0m
+[38;2;248;248;242m  (sem-trywait test-sem-p)[0m
+[38;2;248;248;242m  (check-equal? (sem-getvalue test-sem-p) [0m[38;2;190;132;255m2[0m[38;2;248;248;242m)[0m
+
+[38;2;248;248;242m  [0m[38;2;117;113;94m;; Can't unlink twice[0m
+[38;2;248;248;242m  (check-not-false (sem-unlink test-sem-name))[0m
+[38;2;248;248;242m  (check-false (sem-unlink test-sem-name)))[0m
+
+
+[38;2;117;113;94m;; Named POSIX shared memory[0m
+[38;2;248;248;242m(test-begin[0m
+[38;2;248;248;242m  [0m[38;2;248;248;242m([0m[38;2;249;38;114mdefine[0m[38;2;248;248;242m [0m[38;2;166;226;46mtest-shm-name[0m[38;2;248;248;242m [0m[38;2;248;248;242m"test-nix-mem-[0m[38;2;190;132;255m1[0m[38;2;248;248;242m")[0m
+
+[38;2;248;248;242m  [0m[38;2;117;113;94m;; Open and unlink[0m
+[38;2;248;248;242m  (shm-unlink test-shm-name)[0m
+[38;2;248;248;242m  [0m[38;2;248;248;242m([0m[38;2;249;38;114mdefine[0m[38;2;248;248;242m [0m[38;2;166;226;46mtest-shm-fd[0m[38;2;248;248;242m [0m[38;2;248;248;242m(shm-open test-shm-name (+ O_EXCL O_CREAT O_RDWR) #o644))[0m
+[38;2;248;248;242m  (check > test-shm-fd [0m[38;2;190;132;255m0[0m[38;2;248;248;242m)[0m
+[38;2;248;248;242m  (check-not-false (shm-unlink test-shm-name))[0m
+[38;2;248;248;242m  (check-false (shm-unlink test-shm-name)))[0m
--- a/tests/syntax-tests/source/BatTestCustomAssets/NoColorsUnlessCustomAssetsAreUsed.battestcustomassets
+++ b/tests/syntax-tests/source/BatTestCustomAssets/NoColorsUnlessCustomAssetsAreUsed.battestcustomassets
@@ -0,0 +1,2 @@
+custom assets : 0
+are           : the best
--- a/tests/syntax-tests/source/CpuInfo/test.cpuinfo
+++ b/tests/syntax-tests/source/CpuInfo/test.cpuinfo
--- a/tests/syntax-tests/source/Ignored
+++ b/tests/syntax-tests/source/Ignored
@@ -0,0 +1 @@
+// foo.ucf-dist (Debian ucf backup) should highlight same as foo
--- a/tests/syntax-tests/source/Ignored
+++ b/tests/syntax-tests/source/Ignored
@@ -0,0 +1 @@
+// foo.ucf-new (Debian ucf backup) should highlight same as foo
--- a/tests/syntax-tests/source/Ignored
+++ b/tests/syntax-tests/source/Ignored
@@ -0,0 +1 @@
+// foo.ucf-old (Debian ucf backup) should highlight same as foo
--- a/tests/syntax-tests/source/MemInfo/test.meminfo
+++ b/tests/syntax-tests/source/MemInfo/test.meminfo
--- a/tests/syntax-tests/source/Racket/test.rkt
+++ b/tests/syntax-tests/source/Racket/test.rkt
@@ -0,0 +1,56 @@
+#lang racket
+
+(require "main.rkt" rackunit)
+
+;; Helper for test cases with multiple outputs
+;; See: https://stackoverflow.com/questions/41081395/unit-testing-in-racket-with-multiple-outputs
+(define-syntax check-values-equal?
+  (syntax-rules ()
+    [(_ a b) (check-equal? (call-with-values (thunk a) list) b)]))
+
+
+;; Named POSIX semaphores
+(test-begin
+  (define test-sem-name "/test-nix-1")
+
+  ;; Unlink if already exists
+  (sem-unlink test-sem-name)
+
+  ;; Open and unlink
+  (define test-sem-p (sem-open test-sem-name (+ O_CREAT O_EXCL)))
+  (check-not-false test-sem-p)
+  (check-not-equal? test-sem-p (void))
+  (check-exn exn:fail?
+             (lambda () (sem-open test-sem-name (+ O_CREAT O_EXCL)))
+             "Permission denied")
+  (check-exn exn:fail?
+             (lambda () (sem-open test-sem-name (+ O_CREAT O_EXCL))))
+
+  ;; Change values
+  (check-equal? (sem-getvalue test-sem-p) 0)
+  (sem-post test-sem-p)
+  (check-equal? (sem-getvalue test-sem-p) 1)
+  (sem-wait test-sem-p)
+  (check-equal? (sem-getvalue test-sem-p) 0)
+  (sem-post test-sem-p)
+  (check-equal? (sem-getvalue test-sem-p) 1)
+  (sem-post test-sem-p)
+  (check-equal? (sem-getvalue test-sem-p) 2)
+  (sem-trywait test-sem-p)
+  (check-equal? (sem-getvalue test-sem-p) 2)
+
+  ;; Can't unlink twice
+  (check-not-false (sem-unlink test-sem-name))
+  (check-false (sem-unlink test-sem-name)))
+
+
+;; Named POSIX shared memory
+(test-begin
+  (define test-shm-name "test-nix-mem-1")
+
+  ;; Open and unlink
+  (shm-unlink test-shm-name)
+  (define test-shm-fd (shm-open test-shm-name (+ O_EXCL O_CREAT O_RDWR) #o644))
+  (check > test-shm-fd 0)
+  (check-not-false (shm-unlink test-shm-name))
+  (check-false (shm-unlink test-shm-name)))
--- a/tests/syntax-tests/source/Svelte/App.svelte
+++ b/tests/syntax-tests/source/Svelte/App.svelte
@@ -26,6 +26,10 @@
 	onMount(hashchange);
 </script>

+<script type="text/livescript">
+    // This block is a regression test for a bat panic when a LiveScript syntax definition is missing
+</script>
+
 <style>
 	main {
 		position: relative;
--- a/tests/syntax-tests/test_custom_assets.sh
+++ b/tests/syntax-tests/test_custom_assets.sh
@@ -0,0 +1,74 @@
+#!/usr/bin/env bash
+set -o errexit -o nounset -o pipefail
+
+### ENVIRONMENT
+
+BAT_CONFIG_DIR=$(mktemp -d)
+export BAT_CONFIG_DIR
+
+BAT_CACHE_PATH=$(mktemp -d)
+export BAT_CACHE_PATH
+
+echo "
+BAT_CONFIG_DIR = ${BAT_CONFIG_DIR}
+BAT_CACHE_PATH = ${BAT_CACHE_PATH}
+"
+
+### HELPER VARS
+
+custom_syntax_args=(
+    "--language=BatTestCustomAssets"
+    "tests/syntax-tests/source/BatTestCustomAssets/NoColorsUnlessCustomAssetsAreUsed.battestcustomassets"
+)
+
+integrated_syntax_args=(
+    "--language=Rust"
+    "examples/simple.rs"
+)
+
+### HELPER FUNCTIONS
+
+echo_step() {
+    echo -e "\n== $1 =="
+}
+
+fail_test() {
+    echo -e "FAIL: $1"
+    exit 1
+}
+
+### TEST STEPS
+
+echo_step "TEST: Make sure 'BatTestCustomAssets' is not part of integrated syntaxes"
+bat -f "${custom_syntax_args[@]}" &&
+    fail_test "EXPECTED: 'unknown syntax' error ACTUAL: no error occured"
+
+echo_step "PREPARE: Install custom syntax 'BatTestCustomAssets'"
+custom_syntaxes_dir="$(bat --config-dir)/syntaxes"
+mkdir -p "${custom_syntaxes_dir}"
+cp -v "tests/syntax-tests/BatTestCustomAssets.sublime-syntax" \
+    "${custom_syntaxes_dir}/BatTestCustomAssets.sublime-syntax"
+
+echo_step "PREPARE: Build custom assets to enable 'BatTestCustomAssets' syntax"
+bat cache --build
+
+echo_step "TEST: 'BatTestCustomAssets' is a known syntax"
+bat -f "${custom_syntax_args[@]}" ||
+    fail_test "EXPECTED: syntax highlighting to work ACTUAL: there was an error"
+
+echo_step "TEST: The 'Rust' syntax is still available"
+bat -f "${integrated_syntax_args[@]}" ||
+    fail_test "EXPECTED: syntax highlighting still works with integrated assets ACTUAL: there was an error"
+
+echo_step "TEST: 'BatTestCustomAssets' is an unknown syntax with --no-custom-assets"
+bat -f --no-custom-assets "${custom_syntax_args[@]}" &&
+    fail_test "EXPECTED: 'unknown syntax' error because of --no-custom-assets ACTUAL: no error occured"
+
+echo_step "TEST: 'bat cache --clear' removes all files"
+bat cache --clear
+remaining_files=$(ls -A "${BAT_CACHE_PATH}")
+[ -z "${remaining_files}" ] ||
+    fail_test "EXPECTED: no files remain ACTUAL: some files remain:\n${remaining_files}"
+
+echo_step "CLEAN"
+rm -rv "${BAT_CONFIG_DIR}" "${BAT_CACHE_PATH}"
				`@@ -0,0 +1 @@`
				`[38;2;117;113;94m//[0m[38;2;117;113;94m foo.ucf-dist (Debian ucf backup) should highlight same as foo[0m`
				`@@ -0,0 +1 @@`
				`// foo.ucf-dist (Debian ucf backup) should highlight same as foo`
				`@@ -0,0 +1 @@`
				`// foo.ucf-new (Debian ucf backup) should highlight same as foo`
				`@@ -0,0 +1 @@`
				`// foo.ucf-old (Debian ucf backup) should highlight same as foo`