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-rw-r--r--userdiff.c40
1 files changed, 37 insertions, 3 deletions
diff --git a/userdiff.c b/userdiff.c
index e5522159b3..9ebf231ea5 100644
--- a/userdiff.c
+++ b/userdiff.c
@@ -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",
@@ -36,7 +52,7 @@ PATTERNS("objc",
"|[-+*/<>%&^|=!]=|--|\\+\\+|<<=?|>>=?|&&|\\|\\||::|->"
"|[^[:space:]]|[\x80-\xff]+"),
PATTERNS("pascal",
- "^((procedure|function|constructor|destructor|interface|"
+ "^(((class[ \t]+)?(procedure|function)|constructor|destructor|interface|"
"implementation|initialization|finalization)[ \t]*.*)$"
"\n"
"^(.*=[ \t]*(class|record).*)$",
@@ -45,6 +61,23 @@ PATTERNS("pascal",
"|[-+0-9.e]+|0[xXbB]?[0-9a-fA-F]+"
"|<>|<=|>=|:=|\\.\\."
"|[^[:space:]]|[\x80-\xff]+"),
+PATTERNS("perl",
+ "^[ \t]*package .*;\n"
+ "^[ \t]*sub .* \\{\n"
+ "^[A-Z]+ \\{\n" /* BEGIN, END, ... */
+ "^=head[0-9] ", /* POD */
+ /* -- */
+ "[[: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.*)$\n"
"^[\t ]*(class.*)$",
@@ -58,14 +91,14 @@ PATTERNS("python", "^[ \t]*((class|def)[ \t].*)$",
"[a-zA-Z_][a-zA-Z0-9_]*"
"|[-+0-9.e]+[jJlL]?|0[xX]?[0-9a-fA-F]+[lL]?"
"|[-+*/<>%&^|=!]=|//=?|<<=?|>>=?|\\*\\*=?"
- "|[^[:space:]|[\x80-\xff]+"),
+ "|[^[:space:]]|[\x80-\xff]+"),
/* -- */
PATTERNS("ruby", "^[ \t]*((class|module|def)[ \t].*)$",
/* -- */
"(@|@@|\\$)?[a-zA-Z_][a-zA-Z0-9_]*"
"|[-+0-9.e]+|0[xXbB]?[0-9a-fA-F]+|\\?(\\\\C-)?(\\\\M-)?."
"|//=?|[-+*/<>%&^|=!]=|<<=?|>>=?|===|\\.{1,3}|::|[!=]~"
- "|[^[:space:]|[\x80-\xff]+"),
+ "|[^[:space:]]|[\x80-\xff]+"),
PATTERNS("bibtex", "(@[a-zA-Z]{1,}[ \t]*\\{{0,1}[ \t]*[^ \t\"@',\\#}{~%]*).*$",
"[={}\"]|[^={}\" \t]+"),
PATTERNS("tex", "^(\\\\((sub)*section|chapter|part)\\*{0,1}\\{.*)$",
@@ -101,6 +134,7 @@ PATTERNS("csharp",
{ "default", NULL, -1, { NULL, 0 } },
};
#undef PATTERNS
+#undef IPATTERN
static struct userdiff_driver driver_true = {
"diff=true",