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[PATCH] Avoid false positives in label detection in cpp diff hunk header regex.

From
VZVadim Zeitlin <vz-git@zeitlins.org>
Date
Mar 22, 2013, 13:43 UTC
Message-ID
<loom.20130322T144107-601@post.gmane.org>
A C++ method start such as
        void
        foo::bar()

wasn't recognized by cpp diff driver as it mistakenly included "foo::bar" as a label. However the colon in a label can't be followed by another colon, so recognize this case specially to correctly detect C++ methods using this style.

Signed-off-by: Vadim Zeitlin <vz-git@zeitlins.org>
---
 userdiff.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/userdiff.c b/userdiff.c
index ea43a03..9415586 100644
--- a/userdiff.c
+++ b/userdiff.c
@@ -125,7 +125,7 @@ PATTERNS("tex",
"^(\\\\((sub)*section|chapter|part)\\*{0,1}\\{.*)$",
         "\\\\[a-zA-Z@]+|\\\\.|[a-zA-Z0-9\x80-\xff]+"),
 PATTERNS("cpp",
         /* Jump targets or access declarations */
-        "!^[ \t]*[A-Za-z_][A-Za-z_0-9]*:.*$\n"
+        "!^[ \t]*[A-Za-z_][A-Za-z_0-9]*:([^:].*$|$)\n"
         /* C/++ functions/methods at top level */
         "^([A-Za-z_][A-Za-z_0-9]*([ \t*]+[A-Za-z_][A-Za-z_0-9]*([ \t]*::[
\t]*[^[:space:]]+)?){1,}[ \t]*\\([^;]*)$\n"
         /* compound type at top level */
--
1.8.2.135.g7b592fa
Next: Junio C Hamano
Message 1 of 9 in “Avoid false positives in label detection in cpp diff hunk header regex.”
  1. Avoid false positives in label detection in cpp diff hunk header regex.Vadim Zeitlin, Mar 22, 2013
  2. Junio C HamanoMar 22, 2013
  3. Vadim ZeitlinMar 22, 2013
  4. Johannes SixtMar 22, 2013
  5. Junio C HamanoMar 22, 2013
  6. Johannes SixtMar 22, 2013
  7. Vadim ZeitlinMar 23, 2013
  8. Andreas SchwabMar 23, 2013
  9. Vadim ZeitlinMar 23, 2013

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