diff: funcname and word patterns for perl
The default function name discovery already works quite well for Perl
code... with the exception of here-documents (or rather their ending).
sub foo {
print <<END
here-document
END
return 1;
}
The default funcname pattern treats the unindented END line as a
function declaration and puts it in the @@ line of diff and "grep
--show-function" output.
With a little knowledge of perl syntax, we can do better. You can
try it out by adding "*.perl diff=perl" to the gitattributes file.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/userdiff.c b/userdiff.c
index 2d54536..fc2afe3 100644
--- a/userdiff.c
+++ b/userdiff.c
@@ -61,6 +61,21 @@
"|[-+0-9.e]+|0[xXbB]?[0-9a-fA-F]+"
"|<>|<=|>=|:=|\\.\\."
"|[^[:space:]]|[\x80-\xff]+"),
+PATTERNS("perl",
+ "^[ \t]*package .*;\n"
+ "^[ \t]*sub .* \\{",
+ /* -- */
+ "[[:alpha:]_'][[:alnum:]_']*"
+ "|0[xb]?[0-9a-fA-F_]*"
+ /* taking care not to interpret 3..5 as (3.)(.5) */
+ "|[0-9a-fA-F_]+(\\.[0-9a-fA-F_]+)?([eE][-+]?[0-9_]+)?"
+ "|=>|-[rwxoRWXOezsfdlpSugkbctTBMAC>]|~~|::"
+ "|&&=|\\|\\|=|//=|\\*\\*="
+ "|&&|\\|\\||//|\\+\\+|--|\\*\\*|\\.\\.\\.?"
+ "|[-+*/%.^&<>=!|]="
+ "|=~|!~"
+ "|<<|<>|<=>|>>"
+ "|[^[:space:]]"),
PATTERNS("php",
"^[\t ]*(((public|protected|private|static)[\t ]+)*function.*)$\n"
"^[\t ]*(class.*)$",
