Improve regexes in docs

Remove unneeded capturing group parenthesis as there's no significance
to the groups, misc strictness fixes, make do the right thing with both
match and search style regex matching.

docs/configuration/gitlint_file.md

@@ -83,7 +83,7 @@ regex=My-Commit-Tag: foo$ # (10)
 
 [author-valid-email]
 # E.g.: Only allow email addresses from foo.com
-regex=[^@]+@foo.com # (11)
+regex=[^@]+@foo\.com$ # (11)
 
 
 ### NAMED RULES ### (20)
@@ -104,20 +104,20 @@ max-line-count = 5
 ### IGNORE RULES CONFIGURATION ### (13)
 [ignore-by-title]
 # Ignore rules for commits of which the title matches a regex
-regex=^Release(.*) # (14)
+regex=^Release.* # (14)
 ignore=T1,body-min-length # (15)
 
 [ignore-by-body]
 # Ignore rules for commits of which the body has a line that matches a regex
-regex=(.*)release(.*) # (16)
+regex=.*release.* # (16)
 ignore=T1,body-min-length
 
 [ignore-body-lines]
 # Ignore all lines that start with 'Co-Authored-By'
-regex=^Co-Authored-By # (17)
+regex=^Co-Authored-By.* # (17)
 
 [ignore-by-author-name]
-regex=(.*)dependabot(.*) # (18)
+regex=.*dependabot.* # (18)
 ignore=T1,body-min-length
 ```
 
@@ -168,7 +168,7 @@ ignore=T1,body-min-length
     for commits made by `dependabot`. You can also ignore the the commit all-together by setting `ignore=all`:
     ```ini
     [ignore-by-author-name]
-    regex=(.*)dependabot(.*) # (18)
+    regex=.*dependabot.* # (18)
     ignore=all
     ```
 

docs/ignoring_commits.md

@@ -13,12 +13,12 @@ Here's a few examples:
     ```ini
     [ignore-by-title]
     # Match commit titles starting with "Release"
-    regex=^Release(.*)
+    regex=^Release.*
     ignore=title-max-length,body-min-length # (1)
 
     [ignore-by-body]
     # Match commits message bodies that have a line that contains 'release'
-    regex=(.*)release(.*)
+    regex=.*release.*
     ignore=all
 
     [ignore-by-author-name]
@@ -30,7 +30,7 @@ Here's a few examples:
     1. Ignore all rules by setting `ignore` to 'all'. 
     ```ini
     [ignore-by-title]
-    regex=^Release(.*)
+    regex=^Release.*
     ignore=all
     ```
 
@@ -43,7 +43,7 @@ ones,  you can do that using the
     ```ini
     # Ignore all lines that start with 'Co-Authored-By'
     [ignore-body-lines]
-    regex=^Co-Authored-By
+    regex=^Co-Authored-By.*
     ```
 
 !!! warning

docs/rules/builtin_rules.md

@@ -223,11 +223,11 @@ Body must match a given regex.
     ```ini
     # Ensure the body ends with Reviewed-By: <some value>
     [body-match-regex]
-    regex=Reviewed-By:(.*)$
+    regex=Reviewed-By: .+
 
     # Ensure body contains the word "Foo" somewhere
     [body-match-regex]
-    regex=(*.)Foo(.*)
+    regex=.*\bFoo\b.*
     ```
 
 ## M1: author-valid-email
@@ -252,7 +252,7 @@ Author email address must be a valid email address.
     ```ini
     # Only allow email addresses from a foo.com domain
     [author-valid-email]
-    regex=[^@]+@foo.com
+    regex=[^@]+@foo\.com$
     ```
 
 ## I1: ignore-by-title
@@ -273,12 +273,12 @@ Ignore a commit based on matching its title.
     # Match commit titles starting with Release
     # For those commits, ignore title-max-length and body-min-length rules
     [ignore-by-title]
-    regex=^Release(.*)
+    regex=^Release.*
     ignore=title-max-length,body-min-length,B6 # (1)
 
     # Ignore all rules by setting ignore to 'all'
     [ignore-by-title]
-    regex=^Release(.*)
+    regex=^Release.*
     ignore=all
     ```
 
@@ -303,12 +303,12 @@ Ignore a commit based on matching its body.
     # Ignore all commits with a commit message body with a line that contains 'release'
     # For matching commits, only ignore rules T1, body-min-length, B6.
     [ignore-by-body]
-    regex=(.*)release(.*)
+    regex=.*release.*
     ignore=T1,body-min-length,B6 # (1)
 
     # Ignore all rules by setting ignore to 'all'
     [ignore-by-body]
-    regex=(.*)release(.*)
+    regex=.*release.*
     ignore=all
     ```
 
@@ -331,15 +331,15 @@ Ignore certain lines in a commit body that match a regex.
     ```ini
     # Ignore all lines that start with 'Co-Authored-By'
     [ignore-body-lines]
-    regex=^Co-Authored-By
+    regex=^Co-Authored-By.*
 
     # Ignore lines that start with 'Co-Authored-By' or with 'Signed-off-by'
     [ignore-body-lines]
-    regex=(^Co-Authored-By)|(^Signed-off-by)
+    regex=^(Co-Authored-By|Signed-off-by).*
 
     # Ignore lines that contain 'foobar'
     [ignore-body-lines]
-    regex=(.*)foobar(.*)
+    regex=.*foobar.*
     ```
 
 ## I4: ignore-by-author-name
@@ -365,7 +365,7 @@ Ignore a commit based on matching its author name.
 
     # For commits made by authors with "[bot]" in their name, ignore specific rules
     [ignore-by-author-name]
-    regex=(.*)\[bot\](.*)
+    regex=.*\[bot\].*
     ignore=T1,body-min-length,B6 # (1)
     ```
 

gitlint-core/gitlint/files/gitlint

@@ -99,12 +99,12 @@
 # [author-valid-email]
 # python-style regex that the commit author email address must match.
 # For example, use the following regex if you only want to allow email addresses from foo.com
-# regex=[^@]+@foo.com
+# regex=[^@]+@foo\.com$
 
 # [ignore-by-title]
 # Ignore certain rules for commits of which the title matches a regex
 # E.g. Match commit titles that start with "Release"
-# regex=^Release(.*)
+# regex=^Release.*
 
 # Ignore certain rules, you can reference them by their id or by their full name
 # Use 'all' to ignore all rules
@@ -113,7 +113,7 @@
 # [ignore-by-body]
 # Ignore certain rules for commits of which the body has a line that matches a regex
 # E.g. Match bodies that have a line that that contain "release"
-# regex=(.*)release(.*)
+# regex=.*release.*
 #
 # Ignore certain rules, you can reference them by their id or by their full name
 # Use 'all' to ignore all rules
@@ -122,12 +122,12 @@
 # [ignore-body-lines]
 # Ignore certain lines in a commit body that match a regex.
 # E.g. Ignore all lines that start with 'Co-Authored-By'
-# regex=^Co-Authored-By
+# regex=^Co-Authored-By.*
 
 # [ignore-by-author-name]
 # Ignore certain rules for commits of which the author name matches a regex
 # E.g. Match commits made by dependabot
-# regex=(.*)dependabot(.*)
+# regex=.*dependabot.*
 #
 # Ignore certain rules, you can reference them by their id or by their full name
 # Use 'all' to ignore all rules

qa/samples/config/ignore-release-commits

@@ -1,7 +1,7 @@
 [ignore-by-title]
-regex=^Release(.*)
+regex=^Release.*
 ignore=T5,T3
 
 [ignore-by-body]
-regex=(.*)relëase(.*)
+regex=.*relëase.*
 ignore=T3,B3