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-rw-r--r--third_party/git/line-range.c295
1 files changed, 0 insertions, 295 deletions
diff --git a/third_party/git/line-range.c b/third_party/git/line-range.c
deleted file mode 100644
index 9b50583dc0..0000000000
--- a/third_party/git/line-range.c
+++ /dev/null
@@ -1,295 +0,0 @@
-#include "git-compat-util.h"
-#include "line-range.h"
-#include "xdiff-interface.h"
-#include "strbuf.h"
-#include "userdiff.h"
-
-/*
- * Parse one item in the -L option
- *
- * 'begin' is applicable only to relative range anchors. Absolute anchors
- * ignore this value.
- *
- * When parsing "-L A,B", parse_loc() is called once for A and once for B.
- *
- * When parsing A, 'begin' must be a negative number, the absolute value of
- * which is the line at which relative start-of-range anchors should be
- * based. Beginning of file is represented by -1.
- *
- * When parsing B, 'begin' must be the positive line number immediately
- * following the line computed for 'A'.
- */
-static const char *parse_loc(const char *spec, nth_line_fn_t nth_line,
-			     void *data, long lines, long begin, long *ret)
-{
-	char *term;
-	const char *line;
-	long num;
-	int reg_error;
-	regex_t regexp;
-	regmatch_t match[1];
-
-	/* Allow "-L <something>,+20" to mean starting at <something>
-	 * for 20 lines, or "-L <something>,-5" for 5 lines ending at
-	 * <something>.
-	 */
-	if (1 <= begin && (spec[0] == '+' || spec[0] == '-')) {
-		num = strtol(spec + 1, &term, 10);
-		if (term != spec + 1) {
-			if (!ret)
-				return term;
-			if (num == 0)
-				die("-L invalid empty range");
-			if (spec[0] == '-')
-				num = 0 - num;
-			if (0 < num)
-				*ret = begin + num - 2;
-			else if (!num)
-				*ret = begin;
-			else
-				*ret = begin + num > 0 ? begin + num : 1;
-			return term;
-		}
-		return spec;
-	}
-	num = strtol(spec, &term, 10);
-	if (term != spec) {
-		if (ret) {
-			if (num <= 0)
-				die("-L invalid line number: %ld", num);
-			*ret = num;
-		}
-		return term;
-	}
-
-	if (begin < 0) {
-		if (spec[0] != '^')
-			begin = -begin;
-		else {
-			begin = 1;
-			spec++;
-		}
-	}
-
-	if (spec[0] != '/')
-		return spec;
-
-	/* it could be a regexp of form /.../ */
-	for (term = (char *) spec + 1; *term && *term != '/'; term++) {
-		if (*term == '\\')
-			term++;
-	}
-	if (*term != '/')
-		return spec;
-
-	/* in the scan-only case we are not interested in the regex */
-	if (!ret)
-		return term+1;
-
-	/* try [spec+1 .. term-1] as regexp */
-	*term = 0;
-	begin--; /* input is in human terms */
-	line = nth_line(data, begin);
-
-	if (!(reg_error = regcomp(&regexp, spec + 1, REG_NEWLINE)) &&
-	    !(reg_error = regexec(&regexp, line, 1, match, 0))) {
-		const char *cp = line + match[0].rm_so;
-		const char *nline;
-
-		while (begin++ < lines) {
-			nline = nth_line(data, begin);
-			if (line <= cp && cp < nline)
-				break;
-			line = nline;
-		}
-		*ret = begin;
-		regfree(&regexp);
-		*term++ = '/';
-		return term;
-	}
-	else {
-		char errbuf[1024];
-		regerror(reg_error, &regexp, errbuf, 1024);
-		die("-L parameter '%s' starting at line %ld: %s",
-		    spec + 1, begin + 1, errbuf);
-	}
-}
-
-static int match_funcname(xdemitconf_t *xecfg, const char *bol, const char *eol)
-{
-	if (xecfg) {
-		char buf[1];
-		return xecfg->find_func(bol, eol - bol, buf, 1,
-					xecfg->find_func_priv) >= 0;
-	}
-
-	if (bol == eol)
-		return 0;
-	if (isalpha(*bol) || *bol == '_' || *bol == '$')
-		return 1;
-	return 0;
-}
-
-static const char *find_funcname_matching_regexp(xdemitconf_t *xecfg, const char *start,
-						 regex_t *regexp)
-{
-	int reg_error;
-	regmatch_t match[1];
-	while (1) {
-		const char *bol, *eol;
-		reg_error = regexec(regexp, start, 1, match, 0);
-		if (reg_error == REG_NOMATCH)
-			return NULL;
-		else if (reg_error) {
-			char errbuf[1024];
-			regerror(reg_error, regexp, errbuf, 1024);
-			die("-L parameter: regexec() failed: %s", errbuf);
-		}
-		/* determine extent of line matched */
-		bol = start+match[0].rm_so;
-		eol = start+match[0].rm_eo;
-		while (bol > start && *bol != '\n')
-			bol--;
-		if (*bol == '\n')
-			bol++;
-		while (*eol && *eol != '\n')
-			eol++;
-		if (*eol == '\n')
-			eol++;
-		/* is it a funcname line? */
-		if (match_funcname(xecfg, (char*) bol, (char*) eol))
-			return bol;
-		start = eol;
-	}
-}
-
-static const char *parse_range_funcname(
-	const char *arg, nth_line_fn_t nth_line_cb,
-	void *cb_data, long lines, long anchor, long *begin, long *end,
-	const char *path, struct index_state *istate)
-{
-	char *pattern;
-	const char *term;
-	struct userdiff_driver *drv;
-	xdemitconf_t *xecfg = NULL;
-	const char *start;
-	const char *p;
-	int reg_error;
-	regex_t regexp;
-
-	if (*arg == '^') {
-		anchor = 1;
-		arg++;
-	}
-
-	assert(*arg == ':');
-	term = arg+1;
-	while (*term && *term != ':') {
-		if (*term == '\\' && *(term+1))
-			term++;
-		term++;
-	}
-	if (term == arg+1)
-		return NULL;
-	if (!begin) /* skip_range_arg case */
-		return term;
-
-	pattern = xstrndup(arg+1, term-(arg+1));
-
-	anchor--; /* input is in human terms */
-	start = nth_line_cb(cb_data, anchor);
-
-	drv = userdiff_find_by_path(istate, path);
-	if (drv && drv->funcname.pattern) {
-		const struct userdiff_funcname *pe = &drv->funcname;
-		xecfg = xcalloc(1, sizeof(*xecfg));
-		xdiff_set_find_func(xecfg, pe->pattern, pe->cflags);
-	}
-
-	reg_error = regcomp(&regexp, pattern, REG_NEWLINE);
-	if (reg_error) {
-		char errbuf[1024];
-		regerror(reg_error, &regexp, errbuf, 1024);
-		die("-L parameter '%s': %s", pattern, errbuf);
-	}
-
-	p = find_funcname_matching_regexp(xecfg, (char*) start, &regexp);
-	if (!p)
-		die("-L parameter '%s' starting at line %ld: no match",
-		    pattern, anchor + 1);
-	*begin = 0;
-	while (p > nth_line_cb(cb_data, *begin))
-		(*begin)++;
-
-	if (*begin >= lines)
-		die("-L parameter '%s' matches at EOF", pattern);
-
-	*end = *begin+1;
-	while (*end < lines) {
-		const char *bol = nth_line_cb(cb_data, *end);
-		const char *eol = nth_line_cb(cb_data, *end+1);
-		if (match_funcname(xecfg, bol, eol))
-			break;
-		(*end)++;
-	}
-
-	regfree(&regexp);
-	free(xecfg);
-	free(pattern);
-
-	/* compensate for 1-based numbering */
-	(*begin)++;
-
-	return term;
-}
-
-int parse_range_arg(const char *arg, nth_line_fn_t nth_line_cb,
-		    void *cb_data, long lines, long anchor,
-		    long *begin, long *end,
-		    const char *path, struct index_state *istate)
-{
-	*begin = *end = 0;
-
-	if (anchor < 1)
-		anchor = 1;
-	if (anchor > lines)
-		anchor = lines + 1;
-
-	if (*arg == ':' || (*arg == '^' && *(arg + 1) == ':')) {
-		arg = parse_range_funcname(arg, nth_line_cb, cb_data,
-					   lines, anchor, begin, end,
-					   path, istate);
-		if (!arg || *arg)
-			return -1;
-		return 0;
-	}
-
-	arg = parse_loc(arg, nth_line_cb, cb_data, lines, -anchor, begin);
-
-	if (*arg == ',')
-		arg = parse_loc(arg + 1, nth_line_cb, cb_data, lines, *begin + 1, end);
-
-	if (*arg)
-		return -1;
-
-	if (*begin && *end && *end < *begin) {
-		SWAP(*end, *begin);
-	}
-
-	return 0;
-}
-
-const char *skip_range_arg(const char *arg, struct index_state *istate)
-{
-	if (*arg == ':' || (*arg == '^' && *(arg + 1) == ':'))
-		return parse_range_funcname(arg, NULL, NULL,
-					    0, 0, NULL, NULL,
-					    NULL, istate);
-
-	arg = parse_loc(arg, NULL, NULL, 0, -1, NULL);
-
-	if (*arg == ',')
-		arg = parse_loc(arg+1, NULL, NULL, 0, 0, NULL);
-
-	return arg;
-}
generated by cgit-pink 1.4.1 (git 2.44.0) at 2024-05-09T19ยท04+0000