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userdiff.c: add builtin fortran regex patterns 

This adds fortran xfuncname and wordRegex patterns to the list of builtin
patterns.  The intention is for the patterns to be appropriate for all
versions of fortran including 77, 90, 95.  The patterns can be enabled by
adding the diff=fortran attribute to the .gitattributes file for the
desired file glob.

This also adds a new macro named IPATTERN which is just like the PATTERNS
macro except it sets the REG_ICASE flag so that case will be ignored.

The test code in t4018 and the docs were updated as appropriate.

Signed-off-by: Brandon Casey <casey@nrlssc.navy.mil>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Brandon Casey 2010-09-10 11:18:14 -05:00 committed by Junio C Hamano
parent bff4206121
commit 909a5494f8
3 changed files with 20 additions and 1 deletions
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2
Documentation/gitattributes.txt
View File

@ -477,6 +477,8 @@ patterns are available:
- `csharp` suitable for source code in the C# language.
- `fortran` suitable for source code in the Fortran language.
- `html` suitable for HTML/XHTML documents.
- `java` suitable for source code in the Java language.

2
t/t4018-diff-funcname.sh
View File

@ -32,7 +32,7 @@ EOF
sed 's/beer\\/beer,\\/' < Beer.java > Beer-correct.java
builtin_patterns="bibtex cpp csharp html java objc pascal php python ruby tex"
builtin_patterns="bibtex cpp csharp fortran html java objc pascal php python ruby tex"
for p in $builtin_patterns
do
test_expect_success "builtin $p pattern compiles" '

17
userdiff.c
View File

@ -9,7 +9,23 @@ static int drivers_alloc;
#define PATTERNS(name, pattern, word_regex) \
{ name, NULL, -1, { pattern, REG_EXTENDED }, word_regex }
#define IPATTERN(name, pattern, word_regex) \
{ name, NULL, -1, { pattern, REG_EXTENDED | REG_ICASE }, word_regex }
static struct userdiff_driver builtin_drivers[] = {
IPATTERN("fortran",
"!^([C*]|[ \t]*!)\n"
"!^[ \t]*MODULE[ \t]+PROCEDURE[ \t]\n"
"^[ \t]*((END[ \t]+)?(PROGRAM|MODULE|BLOCK[ \t]+DATA"
"|([^'\" \t]+[ \t]+)*(SUBROUTINE|FUNCTION))[ \t]+[A-Z].*)$",
/* -- */
"[a-zA-Z][a-zA-Z0-9_]*"
"|\\.([Ee][Qq]|[Nn][Ee]|[Gg][TtEe]|[Ll][TtEe]|[Tt][Rr][Uu][Ee]|[Ff][Aa][Ll][Ss][Ee]|[Aa][Nn][Dd]|[Oo][Rr]|[Nn]?[Ee][Qq][Vv]|[Nn][Oo][Tt])\\."
/* numbers and format statements like 2E14.4, or ES12.6, 9X.
* Don't worry about format statements without leading digits since
* they would have been matched above as a variable anyway. */
"|[-+]?[0-9.]+([AaIiDdEeFfLlTtXx][Ss]?[-+]?[0-9.]*)?(_[a-zA-Z0-9][a-zA-Z0-9_]*)?"
"|//|\\*\\*|::|[/<>=]="
"|[^[:space:]]|[\x80-\xff]+"),
PATTERNS("html", "^[ \t]*(<[Hh][1-6][ \t].*>.*)$",
"[^<>= \t]+|[^[:space:]]|[\x80-\xff]+"),
PATTERNS("java",
@ -101,6 +117,7 @@ PATTERNS("csharp",
{ "default", NULL, -1, { NULL, 0 } },
};
#undef PATTERNS
#undef IPATTERN
static struct userdiff_driver driver_true = {
"diff=true",