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-rw-r--r--third_party/git/userdiff.c322
1 files changed, 0 insertions, 322 deletions
diff --git a/third_party/git/userdiff.c b/third_party/git/userdiff.c
deleted file mode 100644
index e74a6d4022..0000000000
--- a/third_party/git/userdiff.c
+++ /dev/null
@@ -1,322 +0,0 @@
-#include "cache.h"
-#include "config.h"
-#include "userdiff.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 "|[^[:space:]]|[\xc0-\xff][\x80-\xbf]+" }
-#define IPATTERN(name, pattern, word_regex)			\
-	{ name, NULL, -1, { pattern, REG_EXTENDED | REG_ICASE }, \
-	  word_regex "|[^[:space:]]|[\xc0-\xff][\x80-\xbf]+" }
-static struct userdiff_driver builtin_drivers[] = {
-IPATTERN("ada",
-	 "!^(.*[ \t])?(is[ \t]+new|renames|is[ \t]+separate)([ \t].*)?$\n"
-	 "!^[ \t]*with[ \t].*$\n"
-	 "^[ \t]*((procedure|function)[ \t]+.*)$\n"
-	 "^[ \t]*((package|protected|task)[ \t]+.*)$",
-	 /* -- */
-	 "[a-zA-Z][a-zA-Z0-9_]*"
-	 "|[-+]?[0-9][0-9#_.aAbBcCdDeEfF]*([eE][+-]?[0-9_]+)?"
-	 "|=>|\\.\\.|\\*\\*|:=|/=|>=|<=|<<|>>|<>"),
-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].*)$",
-	 /* -- */
-	 "[a-zA-Z][a-zA-Z0-9_]*"
-	 "|\\.([Ee][Qq]|[Nn][Ee]|[Gg][TtEe]|[Ll][TtEe]|[Tt][Rr][Uu][Ee]|[Ff][Aa][Ll][Ss][Ee]|[Aa][Nn][Dd]|[Oo][Rr]|[Nn]?[Ee][Qq][Vv]|[Nn][Oo][Tt])\\."
-	 /* numbers and format statements like 2E14.4, or ES12.6, 9X.
-	  * Don't worry about format statements without leading digits since
-	  * they would have been matched above as a variable anyway. */
-	 "|[-+]?[0-9.]+([AaIiDdEeFfLlTtXx][Ss]?[-+]?[0-9.]*)?(_[a-zA-Z0-9][a-zA-Z0-9_]*)?"
-	 "|//|\\*\\*|::|[/<>=]="),
-IPATTERN("fountain", "^((\\.[^.]|(int|ext|est|int\\.?/ext|i/e)[. ]).*)$",
-	 "[^ \t-]+"),
-PATTERNS("golang",
-	 /* Functions */
-	 "^[ \t]*(func[ \t]*.*(\\{[ \t]*)?)\n"
-	 /* Structs and interfaces */
-	 "^[ \t]*(type[ \t].*(struct|interface)[ \t]*(\\{[ \t]*)?)",
-	 /* -- */
-	 "[a-zA-Z_][a-zA-Z0-9_]*"
-	 "|[-+0-9.eE]+i?|0[xX]?[0-9a-fA-F]+i?"
-	 "|[-+*/<>%&^|=!:]=|--|\\+\\+|<<=?|>>=?|&\\^=?|&&|\\|\\||<-|\\.{3}"),
-PATTERNS("html", "^[ \t]*(<[Hh][1-6]([ \t].*)?>.*)$",
-	 "[^<>= \t]+"),
-PATTERNS("java",
-	 "!^[ \t]*(catch|do|for|if|instanceof|new|return|switch|throw|while)\n"
-	 "^[ \t]*(([A-Za-z_][A-Za-z_0-9]*[ \t]+)+[A-Za-z_][A-Za-z_0-9]*[ \t]*\\([^;]*)$",
-	 /* -- */
-	 "[a-zA-Z_][a-zA-Z0-9_]*"
-	 "|[-+0-9.e]+[fFlL]?|0[xXbB]?[0-9a-fA-F]+[lL]?"
-	 "|[-+*/<>%&^|=!]="
-	 "|--|\\+\\+|<<=?|>>>?=?|&&|\\|\\|"),
-PATTERNS("matlab",
-	 /*
-	  * Octave pattern is mostly the same as matlab, except that '%%%' and
-	  * '##' can also be used to begin code sections, in addition to '%%'
-	  * that is understood by both.
-	  */
-	 "^[[:space:]]*((classdef|function)[[:space:]].*)$|^(%%%?|##)[[:space:]].*$",
-	 "[a-zA-Z_][a-zA-Z0-9_]*|[-+0-9.e]+|[=~<>]=|\\.[*/\\^']|\\|\\||&&"),
-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_].*)$\n"
-	 /* C functions */
-	 "^[ \t]*(([A-Za-z_][A-Za-z_0-9]*[ \t]+)+[A-Za-z_][A-Za-z_0-9]*[ \t]*\\([^;]*)$\n"
-	 /* Objective-C class/protocol definitions */
-	 "^(@(implementation|interface|protocol)[ \t].*)$",
-	 /* -- */
-	 "[a-zA-Z_][a-zA-Z0-9_]*"
-	 "|[-+0-9.e]+[fFlL]?|0[xXbB]?[0-9a-fA-F]+[lL]?"
-	 "|[-+*/<>%&^|=!]=|--|\\+\\+|<<=?|>>=?|&&|\\|\\||::|->"),
-PATTERNS("pascal",
-	 "^(((class[ \t]+)?(procedure|function)|constructor|destructor|interface|"
-		"implementation|initialization|finalization)[ \t]*.*)$"
-	 "\n"
-	 "^(.*=[ \t]*(class|record).*)$",
-	 /* -- */
-	 "[a-zA-Z_][a-zA-Z0-9_]*"
-	 "|[-+0-9.e]+|0[xXbB]?[0-9a-fA-F]+"
-	 "|<>|<=|>=|:=|\\.\\."),
-PATTERNS("perl",
-	 "^package .*\n"
-	 "^sub [[:alnum:]_':]+[ \t]*"
-		"(\\([^)]*\\)[ \t]*)?" /* prototype */
-		/*
-		 * Attributes.  A regex can't count nested parentheses,
-		 * so just slurp up whatever we see, taking care not
-		 * to accept lines like "sub foo; # defined elsewhere".
-		 *
-		 * An attribute could contain a semicolon, but at that
-		 * point it seems reasonable enough to give up.
-		 */
-		"(:[^;#]*)?"
-		"(\\{[ \t]*)?" /* brace can come here or on the next line */
-		"(#.*)?$\n" /* comment */
-	 "^(BEGIN|END|INIT|CHECK|UNITCHECK|AUTOLOAD|DESTROY)[ \t]*"
-		"(\\{[ \t]*)?" /* brace can come here or on the next line */
-		"(#.*)?$\n"
-	 "^=head[0-9] .*",	/* POD */
-	 /* -- */
-	 "[[:alpha:]_'][[:alnum:]_']*"
-	 "|0[xb]?[0-9a-fA-F_]*"
-	 /* taking care not to interpret 3..5 as (3.)(.5) */
-	 "|[0-9a-fA-F_]+(\\.[0-9a-fA-F_]+)?([eE][-+]?[0-9_]+)?"
-	 "|=>|-[rwxoRWXOezsfdlpSugkbctTBMAC>]|~~|::"
-	 "|&&=|\\|\\|=|//=|\\*\\*="
-	 "|&&|\\|\\||//|\\+\\+|--|\\*\\*|\\.\\.\\.?"
-	 "|[-+*/%.^&<>=!|]="
-	 "|=~|!~"
-	 "|<<|<>|<=>|>>"),
-PATTERNS("php",
-	 "^[\t ]*(((public|protected|private|static)[\t ]+)*function.*)$\n"
-	 "^[\t ]*((((final|abstract)[\t ]+)?class|interface|trait).*)$",
-	 /* -- */
-	 "[a-zA-Z_][a-zA-Z0-9_]*"
-	 "|[-+0-9.e]+|0[xXbB]?[0-9a-fA-F]+"
-	 "|[-+*/<>%&^|=!.]=|--|\\+\\+|<<=?|>>=?|===|&&|\\|\\||::|->"),
-PATTERNS("python", "^[ \t]*((class|def)[ \t].*)$",
-	 /* -- */
-	 "[a-zA-Z_][a-zA-Z0-9_]*"
-	 "|[-+0-9.e]+[jJlL]?|0[xX]?[0-9a-fA-F]+[lL]?"
-	 "|[-+*/<>%&^|=!]=|//=?|<<=?|>>=?|\\*\\*=?"),
-	 /* -- */
-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}|::|[!=]~"),
-PATTERNS("rust",
-	 "^[\t ]*((pub(\\([^\\)]+\\))?[\t ]+)?((async|const|unsafe|extern([\t ]+\"[^\"]+\"))[\t ]+)?(struct|enum|union|mod|trait|fn|impl)[< \t]+[^;]*)$",
-	 /* -- */
-	 "[a-zA-Z_][a-zA-Z0-9_]*"
-	 "|[0-9][0-9_a-fA-Fiosuxz]*(\\.([0-9]*[eE][+-]?)?[0-9_fF]*)?"
-	 "|[-+*\\/<>%&^|=!:]=|<<=?|>>=?|&&|\\|\\||->|=>|\\.{2}=|\\.{3}|::"),
-PATTERNS("bibtex", "(@[a-zA-Z]{1,}[ \t]*\\{{0,1}[ \t]*[^ \t\"@',\\#}{~%]*).*$",
-	 "[={}\"]|[^={}\" \t]+"),
-PATTERNS("tex", "^(\\\\((sub)*section|chapter|part)\\*{0,1}\\{.*)$",
-	 "\\\\[a-zA-Z@]+|\\\\.|[a-zA-Z0-9\x80-\xff]+"),
-PATTERNS("cpp",
-	 /* Jump targets or access declarations */
-	 "!^[ \t]*[A-Za-z_][A-Za-z_0-9]*:[[:space:]]*($|/[/*])\n"
-	 /* functions/methods, variables, and compounds at top level */
-	 "^((::[[:space:]]*)?[A-Za-z_].*)$",
-	 /* -- */
-	 "[a-zA-Z_][a-zA-Z0-9_]*"
-	 "|[-+0-9.e]+[fFlL]?|0[xXbB]?[0-9a-fA-F]+[lLuU]*"
-	 "|[-+*/<>%&^|=!]=|--|\\+\\+|<<=?|>>=?|&&|\\|\\||::|->\\*?|\\.\\*"),
-PATTERNS("csharp",
-	 /* Keywords */
-	 "!^[ \t]*(do|while|for|if|else|instanceof|new|return|switch|case|throw|catch|using)\n"
-	 /* Methods and constructors */
-	 "^[ \t]*(((static|public|internal|private|protected|new|virtual|sealed|override|unsafe|async)[ \t]+)*[][<>@.~_[:alnum:]]+[ \t]+[<>@._[:alnum:]]+[ \t]*\\(.*\\))[ \t]*$\n"
-	 /* Properties */
-	 "^[ \t]*(((static|public|internal|private|protected|new|virtual|sealed|override|unsafe)[ \t]+)*[][<>@.~_[:alnum:]]+[ \t]+[@._[:alnum:]]+)[ \t]*$\n"
-	 /* Type definitions */
-	 "^[ \t]*(((static|public|internal|private|protected|new|unsafe|sealed|abstract|partial)[ \t]+)*(class|enum|interface|struct)[ \t]+.*)$\n"
-	 /* Namespace */
-	 "^[ \t]*(namespace[ \t]+.*)$",
-	 /* -- */
-	 "[a-zA-Z_][a-zA-Z0-9_]*"
-	 "|[-+0-9.e]+[fFlL]?|0[xXbB]?[0-9a-fA-F]+[lL]?"
-	 "|[-+*/<>%&^|=!]=|--|\\+\\+|<<=?|>>=?|&&|\\|\\||::|->"),
-IPATTERN("css",
-	 "![:;][[:space:]]*$\n"
-	 "^[_a-z0-9].*$",
-	 /* -- */
-	 /*
-	  * This regex comes from W3C CSS specs. Should theoretically also
-	  * allow ISO 10646 characters U+00A0 and higher,
-	  * but they are not handled in this regex.
-	  */
-	 "-?[_a-zA-Z][-_a-zA-Z0-9]*" /* identifiers */
-	 "|-?[0-9]+|\\#[0-9a-fA-F]+" /* numbers */
-),
-{ "default", NULL, -1, { NULL, 0 } },
-};
-#undef PATTERNS
-#undef IPATTERN
-
-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 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 0;
-}
-
-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 0;
-}
-
-static int parse_bool(int *b, const char *k, const char *v)
-{
-	*b = git_config_bool(k, v);
-	return 0;
-}
-
-int userdiff_config(const char *k, const char *v)
-{
-	struct userdiff_driver *drv;
-	const char *name, *type;
-	int namelen;
-
-	if (parse_config_key(k, "diff", &name, &namelen, &type) || !name)
-		return 0;
-
-	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;
-	}
-
-	if (!strcmp(type, "funcname"))
-		return parse_funcname(&drv->funcname, k, v, 0);
-	if (!strcmp(type, "xfuncname"))
-		return parse_funcname(&drv->funcname, k, v, REG_EXTENDED);
-	if (!strcmp(type, "binary"))
-		return parse_tristate(&drv->binary, k, v);
-	if (!strcmp(type, "command"))
-		return git_config_string(&drv->external, k, v);
-	if (!strcmp(type, "textconv"))
-		return git_config_string(&drv->textconv, k, v);
-	if (!strcmp(type, "cachetextconv"))
-		return parse_bool(&drv->textconv_want_cache, k, v);
-	if (!strcmp(type, "wordregex"))
-		return git_config_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(struct index_state *istate,
-					      const char *path)
-{
-	static struct attr_check *check;
-
-	if (!check)
-		check = attr_check_initl("diff", NULL);
-	if (!path)
-		return NULL;
-	git_check_attr(istate, path, check);
-
-	if (ATTR_TRUE(check->items[0].value))
-		return &driver_true;
-	if (ATTR_FALSE(check->items[0].value))
-		return &driver_false;
-	if (ATTR_UNSET(check->items[0].value))
-		return NULL;
-	return userdiff_find_by_name(check->items[0].value);
-}
-
-struct userdiff_driver *userdiff_get_textconv(struct repository *r,
-					      struct userdiff_driver *driver)
-{
-	if (!driver->textconv)
-		return NULL;
-
-	if (driver->textconv_want_cache && !driver->textconv_cache) {
-		struct notes_cache *c = xmalloc(sizeof(*c));
-		struct strbuf name = STRBUF_INIT;
-
-		strbuf_addf(&name, "textconv/%s", driver->name);
-		notes_cache_init(r, c, name.buf, driver->textconv);
-		driver->textconv_cache = c;
-		strbuf_release(&name);
-	}
-
-	return driver;
-}