gitweb: Incremental blame (using JavaScript)

diff --git a/userdiff.c b/userdiff.c
index d95257ab3bd4fafa59b3ed2aa58c480de274227d..57529ae63d49826952b29860b3d4106b60250c7b 100644 (file)
--- a/userdiff.c
+++ b/userdiff.c
@@ -6,35 +6,82 @@ static struct userdiff_driver *drivers;
 static int ndrivers;
 static int drivers_alloc;
 
-#define FUNCNAME(name, pattern) \
-       { name, NULL, -1, { pattern, REG_EXTENDED } }
+#define PATTERNS(name, pattern, word_regex)                    \
+       { name, NULL, -1, { pattern, REG_EXTENDED }, word_regex }
 static struct userdiff_driver builtin_drivers[] = {
-FUNCNAME("html", "^[ \t]*(<[Hh][1-6][ \t].*>.*)$"),
-FUNCNAME("java",
+PATTERNS("html", "^[ \t]*(<[Hh][1-6][ \t].*>.*)$",
+        "[^<>= \t]+|[^[:space:]]|[\x80-\xff]+"),
+PATTERNS("java",
         "!^[ \t]*(catch|do|for|if|instanceof|new|return|switch|throw|while)\n"
-        "^[ \t]*(([ \t]*[A-Za-z_][A-Za-z_0-9]*){2,}[ \t]*\\([^;]*)$"),
-FUNCNAME("objc",
+        "^[ \t]*(([A-Za-z_][A-Za-z_0-9]*[ \t]+)+[A-Za-z_][A-Za-z_0-9]*[ \t]*\\([^;]*)$",
+        /* -- */
+        "[a-zA-Z_][a-zA-Z0-9_]*"
+        "|[-+0-9.e]+[fFlL]?|0[xXbB]?[0-9a-fA-F]+[lL]?"
+        "|[-+*/<>%&^|=!]="
+        "|--|\\+\\+|<<=?|>>>?=?|&&|\\|\\|"
+        "|[^[:space:]]|[\x80-\xff]+"),
+PATTERNS("objc",
         /* Negate C statements that can look like functions */
         "!^[ \t]*(do|for|if|else|return|switch|while)\n"
         /* Objective-C methods */
         "^[ \t]*([-+][ \t]*\\([ \t]*[A-Za-z_][A-Za-z_0-9* \t]*\\)[ \t]*[A-Za-z_].*)$\n"
         /* C functions */
-        "^[ \t]*(([ \t]*[A-Za-z_][A-Za-z_0-9]*){2,}[ \t]*\\([^;]*)$\n"
+        "^[ \t]*(([A-Za-z_][A-Za-z_0-9]*[ \t]+)+[A-Za-z_][A-Za-z_0-9]*[ \t]*\\([^;]*)$\n"
         /* Objective-C class/protocol definitions */
-        "^(@(implementation|interface|protocol)[ \t].*)$"),
-FUNCNAME("pascal",
+        "^(@(implementation|interface|protocol)[ \t].*)$",
+        /* -- */
+        "[a-zA-Z_][a-zA-Z0-9_]*"
+        "|[-+0-9.e]+[fFlL]?|0[xXbB]?[0-9a-fA-F]+[lL]?"
+        "|[-+*/<>%&^|=!]=|--|\\+\\+|<<=?|>>=?|&&|\\|\\||::|->"
+        "|[^[:space:]]|[\x80-\xff]+"),
+PATTERNS("pascal",
         "^((procedure|function|constructor|destructor|interface|"
                "implementation|initialization|finalization)[ \t]*.*)$"
         "\n"
-        "^(.*=[ \t]*(class|record).*)$"),
-FUNCNAME("php", "^[\t ]*((function|class).*)"),
-FUNCNAME("python", "^[ \t]*((class|def)[ \t].*)$"),
-FUNCNAME("ruby", "^[ \t]*((class|module|def)[ \t].*)$"),
-FUNCNAME("bibtex", "(@[a-zA-Z]{1,}[ \t]*\\{{0,1}[ \t]*[^ \t\"@',\\#}{~%]*).*$"),
-FUNCNAME("tex", "^(\\\\((sub)*section|chapter|part)\\*{0,1}\\{.*)$"),
+        "^(.*=[ \t]*(class|record).*)$",
+        /* -- */
+        "[a-zA-Z_][a-zA-Z0-9_]*"
+        "|[-+0-9.e]+|0[xXbB]?[0-9a-fA-F]+"
+        "|<>|<=|>=|:=|\\.\\."
+        "|[^[:space:]]|[\x80-\xff]+"),
+PATTERNS("php", "^[\t ]*((function|class).*)",
+        /* -- */
+        "[a-zA-Z_][a-zA-Z0-9_]*"
+        "|[-+0-9.e]+|0[xXbB]?[0-9a-fA-F]+"
+        "|[-+*/<>%&^|=!.]=|--|\\+\\+|<<=?|>>=?|===|&&|\\|\\||::|->"
+        "|[^[:space:]]|[\x80-\xff]+"),
+PATTERNS("python", "^[ \t]*((class|def)[ \t].*)$",
+        /* -- */
+        "[a-zA-Z_][a-zA-Z0-9_]*"
+        "|[-+0-9.e]+[jJlL]?|0[xX]?[0-9a-fA-F]+[lL]?"
+        "|[-+*/<>%&^|=!]=|//=?|<<=?|>>=?|\\*\\*=?"
+        "|[^[:space:]|[\x80-\xff]+"),
+        /* -- */
+PATTERNS("ruby", "^[ \t]*((class|module|def)[ \t].*)$",
+        /* -- */
+        "(@|@@|\\$)?[a-zA-Z_][a-zA-Z0-9_]*"
+        "|[-+0-9.e]+|0[xXbB]?[0-9a-fA-F]+|\\?(\\\\C-)?(\\\\M-)?."
+        "|//=?|[-+*/<>%&^|=!]=|<<=?|>>=?|===|\\.{1,3}|::|[!=]~"
+        "|[^[:space:]|[\x80-\xff]+"),
+PATTERNS("bibtex", "(@[a-zA-Z]{1,}[ \t]*\\{{0,1}[ \t]*[^ \t\"@',\\#}{~%]*).*$",
+        "[={}\"]|[^={}\" \t]+"),
+PATTERNS("tex", "^(\\\\((sub)*section|chapter|part)\\*{0,1}\\{.*)$",
+        "\\\\[a-zA-Z@]+|\\\\.|[a-zA-Z0-9\x80-\xff]+|[^[:space:]]"),
+PATTERNS("cpp",
+        /* Jump targets or access declarations */
+        "!^[ \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 */
+        "^((struct|class|enum)[^;]*)$",
+        /* -- */
+        "[a-zA-Z_][a-zA-Z0-9_]*"
+        "|[-+0-9.e]+[fFlL]?|0[xXbB]?[0-9a-fA-F]+[lL]?"
+        "|[-+*/<>%&^|=!]=|--|\\+\\+|<<=?|>>=?|&&|\\|\\||::|->"
+        "|[^[:space:]]|[\x80-\xff]+"),
 { "default", NULL, -1, { NULL, 0 } },
 };
-#undef FUNCNAME
+#undef PATTERNS
 
 static struct userdiff_driver driver_true = {
        "diff=true",
@@ -120,7 +167,7 @@ static int parse_tristate(int *b, const char *k, const char *v)
        return 1;
 }
 
-int userdiff_config_basic(const char *k, const char *v)
+int userdiff_config(const char *k, const char *v)
 {
        struct userdiff_driver *drv;
 
@@ -130,18 +177,12 @@ int userdiff_config_basic(const char *k, const char *v)
                return parse_funcname(&drv->funcname, k, v, REG_EXTENDED);
        if ((drv = parse_driver(k, v, "binary")))
                return parse_tristate(&drv->binary, k, v);
-
-       return 0;
-}
-
-int userdiff_config_porcelain(const char *k, const char *v)
-{
-       struct userdiff_driver *drv;
-
        if ((drv = parse_driver(k, v, "command")))
                return parse_string(&drv->external, k, v);
        if ((drv = parse_driver(k, v, "textconv")))
                return parse_string(&drv->textconv, k, v);
+       if ((drv = parse_driver(k, v, "wordregex")))
+               return parse_string(&drv->word_regex, k, v);
 
        return 0;
 }