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[PATCH v3] userdiff.c & doc/gitattributes.txt: add Octave




Octave pattern is almost the same as matlab. Besides,
octave also uses '%%%' or '##' to begin code sections.

Signed-off-by: Boxuan Li <liboxuan@xxxxxxxxxxxxxx>
---
Update from v2: fix indentation
---
 Documentation/gitattributes.txt | 2 ++
 userdiff.c                      | 5 +++++
 2 files changed, 7 insertions(+)

diff --git a/Documentation/gitattributes.txt b/Documentation/gitattributes.txt
index 4fb20cd0e9..45374c7dd3 100644
--- a/Documentation/gitattributes.txt
+++ b/Documentation/gitattributes.txt
@@ -821,6 +821,8 @@ patterns are available:
 
 - `matlab` suitable for source code in the MATLAB language.
 
+- `octave` suitable for source code in the Octave language.
+
 - `objc` suitable for source code in the Objective-C language.
 
 - `pascal` suitable for source code in the Pascal/Delphi language.
diff --git a/userdiff.c b/userdiff.c
index 3a78fbf504..7d07b82116 100644
--- a/userdiff.c
+++ b/userdiff.c
@@ -60,6 +60,11 @@ PATTERNS("java",
 PATTERNS("matlab",
 	 "^[[:space:]]*((classdef|function)[[:space:]].*)$|^%%[[:space:]].*$",
 	 "[a-zA-Z_][a-zA-Z0-9_]*|[-+0-9.e]+|[=~<>]=|\\.[*/\\^']|\\|\\||&&"),
+PATTERNS("octave",
+	 /* Mostly the same as matlab. In addition, Octave
+	  * supports '##' and '%%%' for code sections */
+	 "^[[:space:]]*((classdef|function)[[:space:]].*)$|^(%%%?|##)[[:space:]].*$",
+	 "[a-zA-Z_][a-zA-Z0-9_]*|[-+0-9.e]+|[=~<>]=|\\.[*/\\^']|\\|\\||&&"),
 PATTERNS("objc",
 	 /* Negate C statements that can look like functions */
 	 "!^[ \t]*(do|for|if|else|return|switch|while)\n"
-- 
2.21.0.777.g83232e3864