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authorJunio C Hamano <gitster@pobox.com>2011-11-10 09:05:31 -0800
committerJunio C Hamano <gitster@pobox.com>2011-11-10 09:05:31 -0800
commit77f143bf3e218857ec8e5244d7e862e8e0c1a041 (patch)
tree9f720e61941241b53a4f258d0dc62e5a9a360aa8 /userdiff.c
parentcd9519bd2c5c666cfb3ec219ee0b47c83f26f3fe (diff)
parent633e3556ccbcc7e443f5e9194c4a830181696ef0 (diff)
downloadgit-77f143bf3e218857ec8e5244d7e862e8e0c1a041.tar.gz
Merge 'build-in git-mktree'
* commit '633e3556ccbc': (5835 commits) build-in git-mktree allow -t abbreviation for --track in git branch gitweb: Remove function prototypes (cleanup) Documentation: cloning to empty directory is allowed Clarify kind of conflict in merge-one-file helper git config: clarify --add and --get-color archive-tar.c: squelch a type mismatch warning Start 1.6.4 development Start 1.6.3.1 maintenance series. GIT 1.6.3 t4029: use sh instead of bash t4200: convert sed expression which operates on non-text file to perl t4200: remove two unnecessary lines t/annotate-tests.sh: avoid passing a non-newline terminated file to sed t4118: avoid sed invocation on file without terminating newline t4118: add missing '&&' t8005: use egrep when extended regular expressions are required git-clean doc: the command only affects paths under $(cwd) improve error message in config.c t4018-diff-funcname: add cpp xfuncname pattern to syntax test ...
Diffstat (limited to 'userdiff.c')
-rw-r--r--userdiff.c215
1 files changed, 215 insertions, 0 deletions
diff --git a/userdiff.c b/userdiff.c
new file mode 100644
index 0000000000..d556da9751
--- /dev/null
+++ b/userdiff.c
@@ -0,0 +1,215 @@
+#include "userdiff.h"
+#include "cache.h"
+#include "attr.h"
+
+static struct userdiff_driver *drivers;
+static int ndrivers;
+static int drivers_alloc;
+
+#define PATTERNS(name, pattern, word_regex) \
+ { name, NULL, -1, { pattern, REG_EXTENDED }, word_regex }
+static struct userdiff_driver builtin_drivers[] = {
+PATTERNS("html", "^[ \t]*(<[Hh][1-6][ \t].*>.*)$",
+ "[^<>= \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]*\\([^;]*)$",
+ "[a-zA-Z_][a-zA-Z0-9_]*"
+ "|[-+0-9.e]+[fFlL]?|0[xXbB]?[0-9a-fA-F]+[lL]?"
+ "|[-+*/<>%&^|=!]="
+ "|--|\\+\\+|<<=?|>>>?=?|&&|\\|\\|"
+ "|[^[:space:]]|[\x80-\xff]+"),
+PATTERNS("objc",
+ /* Negate C statements that can look like functions */
+ "!^[ \t]*(do|for|if|else|return|switch|while)\n"
+ /* Objective-C methods */
+ "^[ \t]*([-+][ \t]*\\([ \t]*[A-Za-z_][A-Za-z_0-9* \t]*\\)[ \t]*[A-Za-z_].*)$\n"
+ /* C functions */
+ "^[ \t]*(([ \t]*[A-Za-z_][A-Za-z_0-9]*){2,}[ \t]*\\([^;]*)$\n"
+ /* Objective-C class/protocol definitions */
+ "^(@(implementation|interface|protocol)[ \t].*)$",
+ /* -- */
+ "[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]*.*)$"
+ "\n"
+ "^(.*=[ \t]*(class|record).*)$",
+ /* -- */
+ "[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 PATTERNS
+
+static struct userdiff_driver driver_true = {
+ "diff=true",
+ NULL,
+ 0,
+ { NULL, 0 }
+};
+
+static struct userdiff_driver driver_false = {
+ "!diff",
+ NULL,
+ 1,
+ { NULL, 0 }
+};
+
+static struct userdiff_driver *userdiff_find_by_namelen(const char *k, int len)
+{
+ int i;
+ for (i = 0; i < ndrivers; i++) {
+ struct userdiff_driver *drv = drivers + i;
+ if (!strncmp(drv->name, k, len) && !drv->name[len])
+ return drv;
+ }
+ for (i = 0; i < ARRAY_SIZE(builtin_drivers); i++) {
+ struct userdiff_driver *drv = builtin_drivers + i;
+ if (!strncmp(drv->name, k, len) && !drv->name[len])
+ return drv;
+ }
+ return NULL;
+}
+
+static struct userdiff_driver *parse_driver(const char *var,
+ const char *value, const char *type)
+{
+ struct userdiff_driver *drv;
+ const char *dot;
+ const char *name;
+ int namelen;
+
+ if (prefixcmp(var, "diff."))
+ return NULL;
+ dot = strrchr(var, '.');
+ if (dot == var + 4)
+ return NULL;
+ if (strcmp(type, dot+1))
+ return NULL;
+
+ name = var + 5;
+ namelen = dot - name;
+ drv = userdiff_find_by_namelen(name, namelen);
+ if (!drv) {
+ ALLOC_GROW(drivers, ndrivers+1, drivers_alloc);
+ drv = &drivers[ndrivers++];
+ memset(drv, 0, sizeof(*drv));
+ drv->name = xmemdupz(name, namelen);
+ drv->binary = -1;
+ }
+ return drv;
+}
+
+static int parse_funcname(struct userdiff_funcname *f, const char *k,
+ const char *v, int cflags)
+{
+ if (git_config_string(&f->pattern, k, v) < 0)
+ return -1;
+ f->cflags = cflags;
+ return 1;
+}
+
+static int parse_string(const char **d, const char *k, const char *v)
+{
+ if (git_config_string(d, k, v) < 0)
+ return -1;
+ return 1;
+}
+
+static int parse_tristate(int *b, const char *k, const char *v)
+{
+ if (v && !strcasecmp(v, "auto"))
+ *b = -1;
+ else
+ *b = git_config_bool(k, v);
+ return 1;
+}
+
+int userdiff_config(const char *k, const char *v)
+{
+ struct userdiff_driver *drv;
+
+ if ((drv = parse_driver(k, v, "funcname")))
+ return parse_funcname(&drv->funcname, k, v, 0);
+ if ((drv = parse_driver(k, v, "xfuncname")))
+ return parse_funcname(&drv->funcname, k, v, REG_EXTENDED);
+ if ((drv = parse_driver(k, v, "binary")))
+ return parse_tristate(&drv->binary, k, v);
+ 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;
+}
+
+struct userdiff_driver *userdiff_find_by_name(const char *name) {
+ int len = strlen(name);
+ return userdiff_find_by_namelen(name, len);
+}
+
+struct userdiff_driver *userdiff_find_by_path(const char *path)
+{
+ static struct git_attr *attr;
+ struct git_attr_check check;
+
+ if (!attr)
+ attr = git_attr("diff", 4);
+ check.attr = attr;
+
+ if (!path)
+ return NULL;
+ if (git_checkattr(path, 1, &check))
+ return NULL;
+
+ if (ATTR_TRUE(check.value))
+ return &driver_true;
+ if (ATTR_FALSE(check.value))
+ return &driver_false;
+ if (ATTR_UNSET(check.value))
+ return NULL;
+ return userdiff_find_by_name(check.value);
+}
generated by cgit 1.2.3-korg (git 2.43.0) at 2025-12-07 06:28:09 +0000