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[Gsoc] adding built-in driver for javascript




I'm working on "Add more builtin pattern for userdiff" as my microproject for Gsoc17.As I noticed javascript's builtin driver was not present in userdiff of git/git tree. Hopefully this pattern will cover all cases. I'm really eager to know about my work and wiiling to add more pattern for well known lanaguage.

thanks & regards,
sourav   

Signed-off-by: sourav mondal <souravcristiano502@xxxxxxxxx>
---
 userdiff.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/userdiff.c b/userdiff.c
index 8b732e4..2f8e078 100644
--- a/userdiff.c
+++ b/userdiff.c
@@ -160,6 +160,16 @@ IPATTERN("css",
 	 "-?[_a-zA-Z][-_a-zA-Z0-9]*" /* identifiers */
 	 "|-?[0-9]+|\\#[0-9a-fA-F]+" /* numbers */
 ),
+PATTERNS("javascript",
+	 /* keywords/patterns*/
+	 "^[ \t]*(var|if|else|for|do|while|switch|case|function|break|continue|new|return|class|super|instanceof)"
+	 "^[ \t]*(([a-zA-Z_][a-zA-Z0-9])*[ \t]*\\.?[a-zA-Z_]*\\(\\)[ \t]*);$",
+	 /* word_regex */
+	 "[a-zA-Z_][a-zA-Z0-9]*"
+	 "|[-+0-9.eE]+|0[bB]?|[xX]?|o?[0-9a-fA-F]+"
+	 "|[==-+*/%<>&|!**=^]="
+	 "|--|\\+\\+|<<=?|>>>?=?|&&|\|\|"
+),
 { "default", NULL, -1, { NULL, 0 } },
 };
 #undef PATTERNS
-- 
2.9.3