From 1f48d5e12a4e103dfea7ce33b82ef3b25565346d Mon Sep 17 00:00:00 2001
From: mcarton <cartonmartin+git@gmail.com>
Date: Wed, 20 May 2015 17:55:48 +0200
Subject: [PATCH] Add a rule to change man section

---
 README.md               |  1 +
 tests/rules/test_man.py | 26 ++++++++++++++++++++++++++
 thefuck/rules/man.py    | 13 +++++++++++++
 3 files changed, 40 insertions(+)
 create mode 100644 tests/rules/test_man.py
 create mode 100644 thefuck/rules/man.py

diff --git a/README.md b/README.md
index a1a176ce..7b89f107 100644
--- a/README.md
+++ b/README.md
@@ -163,6 +163,7 @@ using the matched rule and runs it. Rules enabled by default are as follows:
 * `has_exists_script` &ndash; prepends `./` when script/binary exists;
 * `lein_not_task` &ndash; fixes wrong `lein` tasks like `lein rpl`;
 * `ls_lah` &ndash; adds -lah to ls;
+* `man` &ndash; change manual section;
 * `man_no_space` &ndash; fixes man commands without spaces, for example `mandiff`;
 * `mkdir_p` &ndash; adds `-p` when you trying to create directory without parent;
 * `no_command` &ndash; fixes wrong console commands, for example `vom/vim`;
diff --git a/tests/rules/test_man.py b/tests/rules/test_man.py
new file mode 100644
index 00000000..b2e7f281
--- /dev/null
+++ b/tests/rules/test_man.py
@@ -0,0 +1,26 @@
+import pytest
+from thefuck.rules.man import match, get_new_command
+from tests.utils import Command
+
+@pytest.mark.parametrize('command', [
+    Command('man read'),
+    Command('man 2 read'),
+    Command('man 3 read'),
+    Command('man -s2 read'),
+    Command('man -s3 read'),
+    Command('man -s 2 read'),
+    Command('man -s 3 read')])
+def test_match(command):
+    assert match(command, None)
+
+
+@pytest.mark.parametrize('command, new_command', [
+    (Command('man read'), 'man 3 read'),
+    (Command('man 2 read'), 'man 3 read'),
+    (Command('man 3 read'), 'man 2 read'),
+    (Command('man -s2 read'), 'man -s3 read'),
+    (Command('man -s3 read'), 'man -s2 read'),
+    (Command('man -s 2 read'), 'man -s 3 read'),
+    (Command('man -s 3 read'), 'man -s 2 read')])
+def test_get_new_command(command, new_command):
+    assert get_new_command(command, None) == new_command
diff --git a/thefuck/rules/man.py b/thefuck/rules/man.py
new file mode 100644
index 00000000..13ff0c6a
--- /dev/null
+++ b/thefuck/rules/man.py
@@ -0,0 +1,13 @@
+def match(command, settings):
+    return command.script.startswith('man')
+
+
+def get_new_command(command, settings):
+    if '3' in command.script:
+        return command.script.replace("3", "2")
+    if '2' in command.script:
+        return command.script.replace("2", "3")
+
+    split_cmd = command.script.split()
+    split_cmd.insert(1, ' 3 ')
+    return "".join(split_cmd)