str_talloc: delete.

All the cool kids are using tal/str now...
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

Makefile-ccan

@@ -84,7 +84,6 @@ MODS_WITH_SRC := antithread \
 	stringmap \
 	strmap \
 	strset \
-	str_talloc \
 	take \
 	tal \
 	tal/grab_file \

ccan/str_talloc/LICENSE

-../../licenses/LGPL-2.1
\ No newline at end of file

ccan/str_talloc/_info

-#include <stdio.h>
-#include <string.h>
-#include "config.h"
-
-/**
- * str_talloc - string helper routines which use talloc
- *
- * This is a grab bag of fnctions for string operations, designed to enhance
- * the standard string.h; these are separated from the non-talloc-needing
- * string utilities in "str.h".
- *
- * Example:
- *	#include <ccan/str_talloc/str_talloc.h>
- *	#include <ccan/talloc/talloc.h>
- *	#include <ccan/grab_file/grab_file.h>
- *	#include <err.h>
- *	
- *	// Dumb demo program to double-linespace a file.
- *	int main(int argc, char *argv[])
- *	{
- *		char *textfile;
- *		char **lines;
- *	
- *		// Grab lines in file.
- *		textfile = grab_file(NULL, argv[1], NULL);
- *		if (!textfile)
- *			err(1, "Failed reading %s", argv[1]);
- *		lines = strsplit(textfile, textfile, "\n");
- *	
- *		// Join them back together with two linefeeds.
- *		printf("%s", strjoin(textfile, lines, "\n\n"));
- *
- *		// Free everything, just because we can.
- *		talloc_free(textfile);
- *		return 0;
- *	}
- *
- * License: LGPL (v2.1 or any later version)
- * Author: Rusty Russell <rusty@rustcorp.com.au>
- */
-int main(int argc, char *argv[])
-{
-	if (argc != 2)
-		return 1;
-
-	if (strcmp(argv[1], "depends") == 0) {
-		printf("ccan/str\n");
-		printf("ccan/talloc\n");
-		return 0;
-	}
-
-	return 1;
-}

ccan/str_talloc/str_talloc.c

-/* Licensed under LGPLv2.1+ - see LICENSE file for details */
-#include <unistd.h>
-#include <stdint.h>
-#include <string.h>
-#include <limits.h>
-#include <stdlib.h>
-#include "str_talloc.h"
-#include <sys/types.h>
-#include <regex.h>
-#include <stdarg.h>
-#include <unistd.h>
-#include <ccan/talloc/talloc.h>
-#include <ccan/str/str.h>
-
-char **strsplit(const void *ctx, const char *string, const char *delims)
-{
-	char **lines = NULL;
-	unsigned int max = 64, num = 0;
-
-	lines = talloc_array(ctx, char *, max+1);
-
-	while (*string != '\0') {
-		unsigned int len = strcspn(string, delims);
-		lines[num] = talloc_array(lines, char, len + 1);
-		memcpy(lines[num], string, len);
-		lines[num][len] = '\0';
-		string += len;
-		string += strspn(string, delims) ? 1 : 0;
-		if (++num == max)
-			lines = talloc_realloc(ctx, lines, char *, max*=2 + 1);
-	}
-	lines[num] = NULL;
-
-	/* Shrink, so talloc_get_size works */
-	return talloc_realloc(ctx, lines, char *, num+1);
-}
-
-char *strjoin(const void *ctx, char *strings[], const char *delim)
-{
-	unsigned int i;
-	char *ret = talloc_strdup(ctx, "");
-	size_t totlen = 0, dlen = strlen(delim);
-
-	for (i = 0; strings[i]; i++) {
-		size_t len = strlen(strings[i]);
-		ret = talloc_realloc(ctx, ret, char, totlen + len + dlen + 1);
-		memcpy(ret + totlen, strings[i], len);
-		totlen += len;
-		memcpy(ret + totlen, delim, dlen);
-		totlen += dlen;
-	}
-	ret[totlen] = '\0';
-	return ret;
-}
-
-bool strreg(const void *ctx, const char *string, const char *regex, ...)
-{
-	size_t nmatch = 1 + strcount(regex, "(");
-	regmatch_t *matches = talloc_array(ctx, regmatch_t, nmatch);
-	regex_t r;
-	bool ret;
-
-	if (!matches || regcomp(&r, regex, REG_EXTENDED) != 0)
-		return false;
-
-	if (regexec(&r, string, nmatch, matches, 0) == 0) {
-		unsigned int i;
-		va_list ap;
-
-		ret = true;
-		va_start(ap, regex);
-		for (i = 1; i < nmatch; i++) {
-			char **arg;
-			arg = va_arg(ap, char **);
-			if (arg) {
-				/* eg. ([a-z])? can give "no match". */
-				if (matches[i].rm_so == -1)
-					*arg = NULL;
-				else {
-					*arg = talloc_strndup(ctx,
-						      string + matches[i].rm_so,
-						      matches[i].rm_eo
-						      - matches[i].rm_so);
-					if (!*arg) {
-						ret = false;
-						break;
-					}
-				}
-			}
-		}
-		va_end(ap);
-	} else
-		ret = false;
-	talloc_free(matches);
-	regfree(&r);
-	return ret;
-}

ccan/str_talloc/str_talloc.h

-/* Licensed under LGPLv2.1+ - see LICENSE file for details */
-#ifndef CCAN_STR_TALLOC_H
-#define CCAN_STR_TALLOC_H
-#include <string.h>
-#include <stdbool.h>
-
-/**
- * strsplit - Split string into an array of substrings
- * @ctx: the context to tallocate from (often NULL)
- * @string: the string to split
- * @delims: delimiters where lines should be split.
- *
- * This function splits a single string into multiple strings.  The
- * original string is untouched: an array is allocated (using talloc)
- * pointing to copies of each substring.  Multiple delimiters result
- * in empty substrings.  By definition, no delimiters will appear in
- * the substrings.
- *
- * The final char * in the array will be NULL, talloc_array_length() of the
- * returned value is 1 greater than the number of valid elements in
- * the array.
- *
- * Example:
- *	#include <ccan/talloc/talloc.h>
- *	#include <ccan/str_talloc/str_talloc.h>
- *	...
- *	static unsigned int count_long_lines(const char *string)
- *	{
- *		char **lines;
- *		unsigned int i, long_lines = 0;
- *
- *		// Can only fail on out-of-memory.
- *		lines = strsplit(NULL, string, "\n");
- *		for (i = 0; lines[i] != NULL; i++)
- *			if (strlen(lines[i]) > 80)
- *				long_lines++;
- *		talloc_free(lines);
- *		return long_lines;
- *	}
- */
-char **strsplit(const void *ctx, const char *string, const char *delims);
-
-/**
- * strjoin - Join an array of substrings into one long string
- * @ctx: the context to tallocate from (often NULL)
- * @strings: the NULL-terminated array of strings to join
- * @delim: the delimiter to insert between the strings
- *
- * This function joins an array of strings into a single string.  The
- * return value is allocated using talloc.  Each string in @strings is
- * followed by a copy of @delim.
- *
- * Example:
- *	// Append the string "--EOL" to each line.
- *	static char *append_to_all_lines(const char *string)
- *	{
- *		char **lines, *ret;
- *
- *		lines = strsplit(NULL, string, "\n");
- *		ret = strjoin(NULL, lines, "-- EOL\n");
- *		talloc_free(lines);
- *		return ret;
- *	}
- */
-char *strjoin(const void *ctx, char *strings[], const char *delim);
-
-/**
- * strreg - match and extract from a string via (extended) regular expressions.
- * @ctx: the context to tallocate from (often NULL)
- * @string: the string to try to match.
- * @regex: the regular expression to match.
- * ...: pointers to strings to allocate for subexpressions.
- *
- * Returns true if we matched, in which case any parenthesized
- * expressions in @regex are allocated and placed in the char **
- * arguments following @regex.  NULL arguments mean the match is not
- * saved.  The order of the strings is the order
- * of opening braces in the expression: in the case of repeated
- * expressions (eg "([a-z])*") the last one is saved, in the case of
- * non-existent matches (eg "([a-z]*)?") the pointer is set to NULL.
- *
- * Allocation failures or malformed regular expressions return false.
- *
- * See Also:
- *	regcomp(3), regex(3).
- *
- * Example:
- *	// Given 'My name is Rusty' outputs 'Hello Rusty!'
- *	// Given 'my first name is Rusty Russell' outputs 'Hello Rusty Russell!'
- *	// Given 'My name isnt Rusty Russell' outputs 'Hello there!'
- *	int main(int argc, char *argv[])
- *	{
- *		char *person, *input;
- *
- *		// Join args and trim trailing space.
- *		input = strjoin(NULL, argv+1, " ");
- *		if (strlen(input) != 0)
- *			input[strlen(input)-1] = '\0';
- *
- *		if (strreg(NULL, input, "[Mm]y (first )?name is ([A-Za-z ]+)",
- *			   NULL, &person))
- *			printf("Hello %s!\n", person);
- *		else
- *			printf("Hello there!\n");
- *		return 0;
- *	}
- */
-bool strreg(const void *ctx, const char *string, const char *regex, ...);
-#endif /* CCAN_STR_TALLOC_H */

ccan/str_talloc/test/run-strreg.c

-#include <ccan/str_talloc/str_talloc.h>
-#include <ccan/str_talloc/str_talloc.c>
-#include <ccan/tap/tap.h>
-
-int main(int argc, char *argv[])
-{
-	void *ctx = talloc_init("toplevel");
-	unsigned int top_blocks = talloc_total_blocks(ctx);
-	char *a, *b;
-	/* If it accesses this, it will crash. */
-	char **invalid = (char **)1L;
-
-	plan_tests(25);
-	/* Simple matching. */
-	ok1(strreg(ctx, "hello world!", "hello") == true);
-	ok1(strreg(ctx, "hello world!", "hi") == false);
-
-	/* No parentheses means we don't use any extra args. */
-	ok1(strreg(ctx, "hello world!", "hello", invalid) == true);
-	ok1(strreg(ctx, "hello world!", "hi", invalid) == false);
-
-	ok1(strreg(ctx, "hello world!", "[a-z]+", invalid) == true);
-	ok1(strreg(ctx, "hello world!", "([a-z]+)", &a, invalid) == true);
-	/* Found string */
-	ok1(streq(a, "hello"));
-	/* Allocated off ctx */
-	ok1(talloc_find_parent_byname(a, "toplevel") == ctx);
-	talloc_free(a);
-
-	ok1(strreg(ctx, "hello world!", "([a-z]*) ([a-z]+)",
-		   &a, &b, invalid) == true);
-	ok1(streq(a, "hello"));
-	ok1(streq(b, "world"));
-	ok1(talloc_find_parent_byname(a, "toplevel") == ctx);
-	ok1(talloc_find_parent_byname(b, "toplevel") == ctx);
-	talloc_free(a);
-	talloc_free(b);
-
-	/* * after parentheses returns last match. */
-	ok1(strreg(ctx, "hello world!", "([a-z])* ([a-z]+)",
-		   &a, &b, invalid) == true);
-	ok1(streq(a, "o"));
-	ok1(streq(b, "world"));
-	talloc_free(a);
-	talloc_free(b);
-
-	/* Nested parentheses are ordered by open brace. */
-	ok1(strreg(ctx, "hello world!", "(([a-z]*) world)",
-		   &a, &b, invalid) == true);
-	ok1(streq(a, "hello world"));
-	ok1(streq(b, "hello"));
-	talloc_free(a);
-	talloc_free(b);
-
-	/* Nested parentheses are ordered by open brace. */
-	ok1(strreg(ctx, "hello world!", "(([a-z]*) world)",
-		   &a, &b, invalid) == true);
-	ok1(streq(a, "hello world"));
-	ok1(streq(b, "hello"));
-	talloc_free(a);
-	talloc_free(b);
-
-	/* NULL means we're not interested. */
-	ok1(strreg(ctx, "hello world!", "((hello|goodbye) world)",
-		   &a, NULL, invalid) == true);
-	ok1(streq(a, "hello world"));
-	talloc_free(a);
-
-	/* No leaks! */
-	ok1(talloc_total_blocks(ctx) == top_blocks);
-	talloc_free(ctx);
-	talloc_disable_null_tracking();
-
-	return exit_status();
-}				

ccan/str_talloc/test/run.c

-#include <ccan/str_talloc/str_talloc.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <ccan/str_talloc/str_talloc.c>
-#include <ccan/tap/tap.h>
-
-#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof(arr[0]))
-
-static const char *substrings[]
-= { "far", "bar", "baz", "b", "ba", "z", "ar", NULL };
-
-int main(int argc, char *argv[])
-{
-	char **split, *str;
-	void *ctx;
-
-	plan_tests(16);
-	split = strsplit(NULL, "hello  world", " ");
-	ok1(talloc_array_length(split) == 4);
-	ok1(!strcmp(split[0], "hello"));
-	ok1(!strcmp(split[1], ""));
-	ok1(!strcmp(split[2], "world"));
-	ok1(split[3] == NULL);
-	talloc_free(split);
-
-	split = strsplit(NULL, "hello  world", "o ");
-	ok1(talloc_array_length(split) == 6);
-	ok1(!strcmp(split[0], "hell"));
-	ok1(!strcmp(split[1], ""));
-	ok1(!strcmp(split[2], ""));
-	ok1(!strcmp(split[3], "w"));
-	ok1(!strcmp(split[4], "rld"));
-	ok1(split[5] == NULL);
-
-	ctx = split;
-	split = strsplit(ctx, "hello  world", "o ");
-	ok1(talloc_parent(split) == ctx);
-	talloc_free(ctx);
-
-	str = strjoin(NULL, (char **)substrings, ", ");
-	ok1(!strcmp(str, "far, bar, baz, b, ba, z, ar, "));
-	ctx = str;
-	str = strjoin(ctx, (char **)substrings, "");
-	ok1(!strcmp(str, "farbarbazbbazar"));
-	ok1(talloc_parent(str) == ctx);
-	talloc_free(ctx);
-
-	return exit_status();
-}