Update CHANGELOG.md

Also fix a typo from the previous release

CHANGELOG.md

@@ -1,3 +1,22 @@
+# unreleased
+
+## Features
+
+## Bugfixes
+
+- Fix negative values of N not being parsed in <N:M> line ranges without `=` flag value separator, see #3442 (@lmmx)
+
+## Other
+- Improve README documentation on pager options passed to less, see #3443 (@injust)
+
+- Use more robust approach to escaping in Bash completions, see #3448 (@akinomyoga)
+
+## Syntaxes
+
+## Themes
+
+## `bat` as a library
+
 # v0.26.0
 
 ## Features
@@ -29,7 +48,7 @@
 - Update base16 README links to community driven base16 work #2871 (@JamyGolden)
 - Work around build failures when building `bat` from vendored sources #3179 (@dtolnay)
 - CICD: Stop building for x86_64-pc-windows-gnu which fails #3261 (Enselic)
-- CICD:  CICD: replace windows-2019 runners with windows-2025 #3339 (@cyqsimon)
+- CICD: replace windows-2019 runners with windows-2025 #3339 (@cyqsimon)
 - Build script: replace string-based codegen with quote-based codegen #3340 (@cyqsimon)
 - Improve code coverage of `--list-languages` parameter #2942 (@sblondon)
 - Only start offload worker thread when there's more than 1 core #2956 (@cyqsimon)

README.md

@@ -670,22 +670,22 @@ to improve the experience. Specifically, `-R`/`--RAW-CONTROL-CHARS`, `-F`/`--qui
 > - The `--paging=always` argument is used.
 > - The `BAT_PAGING` environment is set to `always`.
 
-The `-R` option is needed to interpret ANSI colors correctly.
+The `-R`/`--RAW-CONTROL-CHARS` option is needed to interpret ANSI colors correctly.
 
-The `-F` option instructs `less` to exit immediately if the output size is smaller than
+The `-F`/`--quit-if-one-screen` option instructs `less` to exit immediately if the output size is smaller than
 the vertical size of the terminal. This is convenient for small files because you do not
 have to press `q` to quit the pager.
 
-The `-K` option instructs `less` to exit immediately when an interrupt signal is received.
+The `-K`/`--quit-on-intr` option instructs `less` to exit immediately when an interrupt signal is received.
 This is useful to ensure that `less` quits together with `bat` on SIGINT.
 
-The `-X` option is needed to fix a bug with the `--quit-if-one-screen` feature in versions
-of `less` older than version 530. Unfortunately, it also breaks mouse-wheel support in `less`.
+The `-X`/`--no-init` option is added to versions of `less` older than version 530 (older than 558 on Windows) to
+fix a bug with the `-F`/`--quit-if-one-screen` feature. Unfortunately, it also breaks mouse-wheel support in `less`.
 If you want to enable mouse-wheel scrolling on older versions of `less` and do not mind losing
 the quit-if-one-screen feature, you can set the pager (via `--pager` or `BAT_PAGER`) to `less -R`.
 For `less` 530 or newer, it should work out of the box.
 
-The `-S` option is added when `bat`'s `-S`/`--chop-long-lines` option is used. This tells `less`
+The `-S`/`--chop-long-lines` option is added when `bat`'s `-S`/`--chop-long-lines` option is used. This tells `less`
 to truncate any lines larger than the terminal width.
 
 ### Indentation

assets/completions/bat.bash.in

@@ -14,18 +14,36 @@ __bat_escape_completions()
 {
 	# Do not escape if completing a quoted value.
 	[[ $cur == [\"\']* ]] && return 0
-	# printf -v to an array index is available in bash >= 4.1.
-	# Use it if available, as -o filenames is semantically incorrect if
-	# we are not actually completing filenames, and it has side effects
-	# (e.g. adds trailing slash to candidates matching present dirs).
 	if ((
+		BASH_VERSINFO[0] > 5 || \
+		BASH_VERSINFO[0] == 5 && BASH_VERSINFO[1] >= 3
+	)); then
+		# bash >= 5.3 has "compopt -o fullquote", which exactly does
+		# what this function tries to do.
+		compopt -o fullquote
+	elif ((
 		BASH_VERSINFO[0] > 4 || \
 		BASH_VERSINFO[0] == 4 && BASH_VERSINFO[1] > 0
 	)); then
+		# printf -v to an array index is available in bash >= 4.1.
+		# Use it if available, as -o filenames is semantically
+		# incorrect if we are not actually completing filenames, and it
+		# has side effects (e.g. adds trailing slash to candidates
+		# matching present dirs).
 		local i
 		for i in ${!COMPREPLY[*]}; do
 			printf -v "COMPREPLY[i]" %q "${COMPREPLY[i]}"
 		done
+
+		# We can use "compopt -o noquote" available in bash >= 4.3 to
+		# prevent further quoting by the shell, which would be
+		# unexpectedly applied when a quoted result matches a filename.
+		if ((
+			BASH_VERSINFO[0] > 4 || \
+			BASH_VERSINFO[0] == 4 && BASH_VERSINFO[1] >= 3
+		)); then
+			compopt -o noquote
+		fi
 	else
 		compopt -o filenames
 	fi
@@ -66,7 +84,7 @@ _bat() {
 				printf "%s\n" "$lang"
 			done
 		)" -- "$cur"))
-                __bat_escape_completions
+		__bat_escape_completions
 		return 0
 		;;
 	-H | --highlight-line | \
@@ -130,16 +148,16 @@ _bat() {
 		return 0
 		;;
 	--theme)
-    	local IFS=$'\n'
-    	COMPREPLY=($(compgen -W "auto${IFS}auto:always${IFS}auto:system${IFS}dark${IFS}light${IFS}$("$1" --list-themes)" -- "$cur"))
-                    __bat_escape_completions
-    	return 0
-    	;;
+		local IFS=$'\n'
+		COMPREPLY=($(compgen -W "auto${IFS}auto:always${IFS}auto:system${IFS}dark${IFS}light${IFS}$("$1" --list-themes)" -- "$cur"))
+		__bat_escape_completions
+		return 0
+		;;
 	--theme-dark | \
 	--theme-light)
 		local IFS=$'\n'
 		COMPREPLY=($(compgen -W "$("$1" --list-themes)" -- "$cur"))
-                __bat_escape_completions
+		__bat_escape_completions
 		return 0
 		;;
 	--style)
@@ -158,7 +176,7 @@ _bat() {
 			numbers
 			snip
 		)
-                # shellcheck disable=SC2016
+		# shellcheck disable=SC2016
 		if declare -F _comp_delimited >/dev/null 2>&1; then
 			# bash-completion > 2.11
 			_comp_delimited , -W '"${styles[@]}"'

doc/long-help.txt

@@ -194,6 +194,7 @@ Options:
             '--line-range :40' prints lines 1 to 40
             '--line-range 40:' prints lines 40 to the end of the file
             '--line-range 40' only prints line 40
+            '--line-range -10:' prints the last 10 lines
             '--line-range 30:+10' prints lines 30 to 40
             '--line-range 35::5' prints lines 30 to 40 (line 35 with 5 lines of context)
             '--line-range 30:40:2' prints lines 28 to 42 (range 30-40 with 2 lines of context)

src/bin/bat/clap_app.rs

@@ -519,6 +519,7 @@ pub fn build_app(interactive_output: bool) -> Command {
                 .short('r')
                 .action(ArgAction::Append)
                 .value_name("N:M")
+                .allow_hyphen_values(true)
                 .help("Only print the lines from N to M.")
                 .long_help(
                     "Only print the specified range of lines for each file. \
@@ -527,6 +528,7 @@ pub fn build_app(interactive_output: bool) -> Command {
                      '--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\n  \
+                     '--line-range -10:' prints the last 10 lines\n  \
                      '--line-range 30:+10' prints lines 30 to 40\n  \
                      '--line-range 35::5' prints lines 30 to 40 (line 35 with 5 lines of context)\n  \
                      '--line-range 30:40:2' prints lines 28 to 42 (range 30-40 with 2 lines of context)",

tests/integration_tests.rs

@@ -207,7 +207,7 @@ fn line_range_from_back_last_two() {
 }
 
 #[test]
-fn line_range_from_back_last_two_single_line() {
+fn line_range_from_back_last_two_single_line_eq_sep() {
     bat()
         .arg("single-line.txt")
         .arg("--line-range=-2:")
@@ -216,6 +216,17 @@ fn line_range_from_back_last_two_single_line() {
         .stdout("Single Line");
 }
 
+#[test]
+fn line_range_from_back_last_two_single_line_no_sep() {
+    bat()
+        .arg("single-line.txt")
+        .arg("--line-range")
+        .arg("-2:")
+        .assert()
+        .success()
+        .stdout("Single Line");
+}
+
 #[test]
 fn line_range_first_two() {
     bat()