dmlib: src/dmstring.c annotate

annotate src/dmstring.c @ 2027:750a7e125546

Add in several string helper functions from th-libs.

author	Matti Hamalainen <ccr@tnsp.org>
date	Tue, 27 Nov 2018 11:31:10 +0200
parents	47fe47f01fea
children	eeddaf411083

rev	line source
0 32250b436bca Initial re-import. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	1 #include "dmlib.h"
32250b436bca Initial re-import. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	2 #include <stdarg.h>
32250b436bca Initial re-import. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	3
813 b0cd28b6c9f3 Add new utility functions. Matti Hamalainen <ccr@tnsp.org> parents: 812 diff changeset	4
b0cd28b6c9f3 Add new utility functions. Matti Hamalainen <ccr@tnsp.org> parents: 812 diff changeset	5 /* Returns the filename and path without the last filename extension,
b0cd28b6c9f3 Add new utility functions. Matti Hamalainen <ccr@tnsp.org> parents: 812 diff changeset	6 * E.g. everything before the last '.', if any.
b0cd28b6c9f3 Add new utility functions. Matti Hamalainen <ccr@tnsp.org> parents: 812 diff changeset	7 */
b0cd28b6c9f3 Add new utility functions. Matti Hamalainen <ccr@tnsp.org> parents: 812 diff changeset	8 char dm_basefilename(const char filename)
b0cd28b6c9f3 Add new utility functions. Matti Hamalainen <ccr@tnsp.org> parents: 812 diff changeset	9 {
b0cd28b6c9f3 Add new utility functions. Matti Hamalainen <ccr@tnsp.org> parents: 812 diff changeset	10 char tmp, fext;
b0cd28b6c9f3 Add new utility functions. Matti Hamalainen <ccr@tnsp.org> parents: 812 diff changeset	11
b0cd28b6c9f3 Add new utility functions. Matti Hamalainen <ccr@tnsp.org> parents: 812 diff changeset	12 if (filename == NULL \|\|
b0cd28b6c9f3 Add new utility functions. Matti Hamalainen <ccr@tnsp.org> parents: 812 diff changeset	13 (tmp = dm_strdup(filename)) == NULL)
b0cd28b6c9f3 Add new utility functions. Matti Hamalainen <ccr@tnsp.org> parents: 812 diff changeset	14 return NULL;
b0cd28b6c9f3 Add new utility functions. Matti Hamalainen <ccr@tnsp.org> parents: 812 diff changeset	15
b0cd28b6c9f3 Add new utility functions. Matti Hamalainen <ccr@tnsp.org> parents: 812 diff changeset	16 if ((fext = strrchr(tmp, '.')) != NULL)
b0cd28b6c9f3 Add new utility functions. Matti Hamalainen <ccr@tnsp.org> parents: 812 diff changeset	17 {
b0cd28b6c9f3 Add new utility functions. Matti Hamalainen <ccr@tnsp.org> parents: 812 diff changeset	18 char *fpath = strrchr(tmp, DM_DIR_SEPARATOR);
b0cd28b6c9f3 Add new utility functions. Matti Hamalainen <ccr@tnsp.org> parents: 812 diff changeset	19 if (fpath == NULL \|\| (fpath != NULL && fext > fpath))
b0cd28b6c9f3 Add new utility functions. Matti Hamalainen <ccr@tnsp.org> parents: 812 diff changeset	20 *fext = 0;
b0cd28b6c9f3 Add new utility functions. Matti Hamalainen <ccr@tnsp.org> parents: 812 diff changeset	21 }
b0cd28b6c9f3 Add new utility functions. Matti Hamalainen <ccr@tnsp.org> parents: 812 diff changeset	22
b0cd28b6c9f3 Add new utility functions. Matti Hamalainen <ccr@tnsp.org> parents: 812 diff changeset	23 return tmp;
b0cd28b6c9f3 Add new utility functions. Matti Hamalainen <ccr@tnsp.org> parents: 812 diff changeset	24 }
b0cd28b6c9f3 Add new utility functions. Matti Hamalainen <ccr@tnsp.org> parents: 812 diff changeset	25
b0cd28b6c9f3 Add new utility functions. Matti Hamalainen <ccr@tnsp.org> parents: 812 diff changeset	26
b0cd28b6c9f3 Add new utility functions. Matti Hamalainen <ccr@tnsp.org> parents: 812 diff changeset	27 /* Replace filename extension based on format pattern.
b0cd28b6c9f3 Add new utility functions. Matti Hamalainen <ccr@tnsp.org> parents: 812 diff changeset	28 * Usage: res = dm_strdup_fext(orig_filename, "foo_%s.cmp");
b0cd28b6c9f3 Add new utility functions. Matti Hamalainen <ccr@tnsp.org> parents: 812 diff changeset	29 */
b0cd28b6c9f3 Add new utility functions. Matti Hamalainen <ccr@tnsp.org> parents: 812 diff changeset	30 char dm_strdup_fext(const char filename, const char *fmt)
b0cd28b6c9f3 Add new utility functions. Matti Hamalainen <ccr@tnsp.org> parents: 812 diff changeset	31 {
b0cd28b6c9f3 Add new utility functions. Matti Hamalainen <ccr@tnsp.org> parents: 812 diff changeset	32 char result, tmp;
b0cd28b6c9f3 Add new utility functions. Matti Hamalainen <ccr@tnsp.org> parents: 812 diff changeset	33
b0cd28b6c9f3 Add new utility functions. Matti Hamalainen <ccr@tnsp.org> parents: 812 diff changeset	34 if ((tmp = dm_basefilename(filename)) == NULL)
b0cd28b6c9f3 Add new utility functions. Matti Hamalainen <ccr@tnsp.org> parents: 812 diff changeset	35 return NULL;
b0cd28b6c9f3 Add new utility functions. Matti Hamalainen <ccr@tnsp.org> parents: 812 diff changeset	36
b0cd28b6c9f3 Add new utility functions. Matti Hamalainen <ccr@tnsp.org> parents: 812 diff changeset	37 result = dm_strdup_printf(fmt, tmp);
b0cd28b6c9f3 Add new utility functions. Matti Hamalainen <ccr@tnsp.org> parents: 812 diff changeset	38
b0cd28b6c9f3 Add new utility functions. Matti Hamalainen <ccr@tnsp.org> parents: 812 diff changeset	39 dmFree(tmp);
b0cd28b6c9f3 Add new utility functions. Matti Hamalainen <ccr@tnsp.org> parents: 812 diff changeset	40
b0cd28b6c9f3 Add new utility functions. Matti Hamalainen <ccr@tnsp.org> parents: 812 diff changeset	41 return result;
b0cd28b6c9f3 Add new utility functions. Matti Hamalainen <ccr@tnsp.org> parents: 812 diff changeset	42 }
b0cd28b6c9f3 Add new utility functions. Matti Hamalainen <ccr@tnsp.org> parents: 812 diff changeset	43
b0cd28b6c9f3 Add new utility functions. Matti Hamalainen <ccr@tnsp.org> parents: 812 diff changeset	44
2027 750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	45 /* Compare two strings ignoring case [strcasecmp, strncasecmp]
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	46 */
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	47 int dm_strcasecmp(const char haystack, const char needle)
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	48 {
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	49 const char s1 = haystack, s2 = needle;
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	50 assert(haystack != NULL);
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	51 assert(needle != NULL);
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	52
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	53 if (haystack == needle)
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	54 return 0;
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	55
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	56 while (s1 && s2)
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	57 {
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	58 int k = tolower(s1) - tolower(s2);
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	59 if (k != 0)
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	60 return k;
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	61 s1++;
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	62 s2++;
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	63 }
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	64
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	65 return 0;
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	66 }
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	67
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	68
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	69 int dm_strncasecmp(const char haystack, const char needle, size_t n)
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	70 {
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	71 const char s1 = haystack, s2 = needle;
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	72 assert(haystack != NULL);
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	73 assert(needle != NULL);
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	74
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	75 if (haystack == needle)
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	76 return 0;
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	77
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	78 while (n > 0 && s1 && s2)
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	79 {
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	80 int k = tolower(s1) - tolower(s2);
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	81 if (k != 0)
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	82 return k;
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	83 s1++;
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	84 s2++;
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	85 n--;
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	86 }
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	87
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	88 return 0;
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	89 }
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	90
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	91
817 e574764ae065 Add comments. Matti Hamalainen <ccr@tnsp.org> parents: 816 diff changeset	92 /* Check if end of the given string str matches needle
e574764ae065 Add comments. Matti Hamalainen <ccr@tnsp.org> parents: 816 diff changeset	93 * case-insensitively, return pointer to start of the match,
e574764ae065 Add comments. Matti Hamalainen <ccr@tnsp.org> parents: 816 diff changeset	94 * if found, NULL otherwise.
e574764ae065 Add comments. Matti Hamalainen <ccr@tnsp.org> parents: 816 diff changeset	95 */
816 091461e0213f Add new utility function. Matti Hamalainen <ccr@tnsp.org> parents: 813 diff changeset	96 char dm_strrcasecmp(char str, const char *needle)
091461e0213f Add new utility function. Matti Hamalainen <ccr@tnsp.org> parents: 813 diff changeset	97 {
091461e0213f Add new utility function. Matti Hamalainen <ccr@tnsp.org> parents: 813 diff changeset	98 if (str == NULL \|\| needle == NULL)
091461e0213f Add new utility function. Matti Hamalainen <ccr@tnsp.org> parents: 813 diff changeset	99 return NULL;
091461e0213f Add new utility function. Matti Hamalainen <ccr@tnsp.org> parents: 813 diff changeset	100
091461e0213f Add new utility function. Matti Hamalainen <ccr@tnsp.org> parents: 813 diff changeset	101 const size_t
091461e0213f Add new utility function. Matti Hamalainen <ccr@tnsp.org> parents: 813 diff changeset	102 slen = strlen(str),
091461e0213f Add new utility function. Matti Hamalainen <ccr@tnsp.org> parents: 813 diff changeset	103 nlen = strlen(needle);
1102 e06abfde6c39 Cosmetics pass: Remove excess whitespace. Matti Hamalainen <ccr@tnsp.org> parents: 836 diff changeset	104
816 091461e0213f Add new utility function. Matti Hamalainen <ccr@tnsp.org> parents: 813 diff changeset	105 if (slen < nlen)
091461e0213f Add new utility function. Matti Hamalainen <ccr@tnsp.org> parents: 813 diff changeset	106 return NULL;
091461e0213f Add new utility function. Matti Hamalainen <ccr@tnsp.org> parents: 813 diff changeset	107
2027 750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	108 if (dm_strcasecmp(str - nlen - 1, needle) == 0)
816 091461e0213f Add new utility function. Matti Hamalainen <ccr@tnsp.org> parents: 813 diff changeset	109 return str - nlen - 1;
091461e0213f Add new utility function. Matti Hamalainen <ccr@tnsp.org> parents: 813 diff changeset	110 else
091461e0213f Add new utility function. Matti Hamalainen <ccr@tnsp.org> parents: 813 diff changeset	111 return NULL;
091461e0213f Add new utility function. Matti Hamalainen <ccr@tnsp.org> parents: 813 diff changeset	112 }
091461e0213f Add new utility function. Matti Hamalainen <ccr@tnsp.org> parents: 813 diff changeset	113
091461e0213f Add new utility function. Matti Hamalainen <ccr@tnsp.org> parents: 813 diff changeset	114
744 2726d91e3409 Add implementation of dm_strndup(). Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	115 /* Implementation of strdup() with a NULL check
0 32250b436bca Initial re-import. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	116 */
32250b436bca Initial re-import. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	117 char dm_strdup(const char s)
32250b436bca Initial re-import. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	118 {
32250b436bca Initial re-import. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	119 char *res;
32250b436bca Initial re-import. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	120 if (s == NULL)
32250b436bca Initial re-import. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	121 return NULL;
32250b436bca Initial re-import. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	122
32250b436bca Initial re-import. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	123 if ((res = dmMalloc(strlen(s) + 1)) == NULL)
32250b436bca Initial re-import. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	124 return NULL;
32250b436bca Initial re-import. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	125
32250b436bca Initial re-import. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	126 strcpy(res, s);
32250b436bca Initial re-import. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	127 return res;
32250b436bca Initial re-import. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	128 }
32250b436bca Initial re-import. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	129
32250b436bca Initial re-import. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	130
744 2726d91e3409 Add implementation of dm_strndup(). Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	131 /* Implementation of strndup() with NULL check
2726d91e3409 Add implementation of dm_strndup(). Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	132 */
2027 750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	133 char dm_strndup(const char str, const size_t n)
744 2726d91e3409 Add implementation of dm_strndup(). Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	134 {
2726d91e3409 Add implementation of dm_strndup(). Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	135 char *res;
2027 750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	136 if (str == NULL)
744 2726d91e3409 Add implementation of dm_strndup(). Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	137 return NULL;
2726d91e3409 Add implementation of dm_strndup(). Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	138
2027 750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	139 size_t len = strlen(str);
744 2726d91e3409 Add implementation of dm_strndup(). Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	140 if (len > n)
2726d91e3409 Add implementation of dm_strndup(). Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	141 len = n;
2726d91e3409 Add implementation of dm_strndup(). Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	142
2726d91e3409 Add implementation of dm_strndup(). Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	143 if ((res = dmMalloc(len + 1)) == NULL)
2726d91e3409 Add implementation of dm_strndup(). Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	144 return NULL;
2726d91e3409 Add implementation of dm_strndup(). Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	145
2027 750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	146 memcpy(res, str, len);
744 2726d91e3409 Add implementation of dm_strndup(). Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	147 res[len] = 0;
2726d91e3409 Add implementation of dm_strndup(). Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	148
2726d91e3409 Add implementation of dm_strndup(). Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	149 return res;
2726d91e3409 Add implementation of dm_strndup(). Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	150 }
2726d91e3409 Add implementation of dm_strndup(). Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	151
2726d91e3409 Add implementation of dm_strndup(). Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	152
2027 750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	153 /* Like strdup, but trims whitespace from the string according to specified flags.
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	154 * See DM_TRIM_* in dmlib.h. If the resulting string would be empty (length 0),
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	155 * NULL is returned.
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	156 */
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	157 static char * dm_strdup_trim_do(const char *src, size_t len, const int flags)
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	158 {
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	159 char *res;
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	160 size_t start, end;
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	161
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	162 if (len == 0)
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	163 return NULL;
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	164
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	165 // Trim start: find first non-whitespace character
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	166 if (flags & DM_TRIM_START)
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	167 for (start = 0; start < len && isspace(src[start]); start++);
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	168 else
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	169 start = 0;
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	170
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	171 // Trim end: find last non-whitespace character
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	172 if (flags & DM_TRIM_END)
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	173 for (end = len - 1; end > start && isspace(src[end]); end--);
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	174 else
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	175 end = len;
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	176
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	177 // Allocate memory for result
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	178 if (src[end] == 0 \|\| isspace(src[end]))
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	179 return NULL;
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	180
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	181 len = end - start + 1;
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	182 if ((res = dmMalloc(len + 1)) == NULL)
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	183 return NULL;
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	184
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	185 memcpy(res, src + start, len);
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	186 res[len] = 0;
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	187 return res;
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	188 }
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	189
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	190
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	191 char dm_strdup_trim(const char src, const int flags)
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	192 {
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	193 if (src == NULL)
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	194 return NULL;
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	195
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	196 return dm_strdup_trim_do(src, strlen(src), flags);
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	197 }
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	198
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	199
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	200 char dm_strndup_trim(const char src, const size_t n, const int flags)
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	201 {
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	202 size_t len;
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	203 if (src == NULL \|\| n == 0)
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	204 return NULL;
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	205
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	206 for (len = 0; len < n && src[len]; len++);
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	207
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	208 return dm_strdup_trim_do(src, len, flags);
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	209 }
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	210
750a7e125546 Add in several string helper functions from th-libs. Matti Hamalainen <ccr@tnsp.org> parents: 1884 diff changeset	211
0 32250b436bca Initial re-import. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	212 /* Simulate a sprintf() that allocates memory
32250b436bca Initial re-import. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	213 */
1884 47fe47f01fea Implement dm_strdup_vprintf_len(const char fmt, va_list args, int len), which Matti Hamalainen <ccr@tnsp.org> parents: 1102 diff changeset	214 char dm_strdup_vprintf_len(const char fmt, va_list args, int *len)
0 32250b436bca Initial re-import. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	215 {
32250b436bca Initial re-import. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	216 int size = 64;
836 85442780089f Fix reallocation. Matti Hamalainen <ccr@tnsp.org> parents: 817 diff changeset	217 char buf, tmp;
0 32250b436bca Initial re-import. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	218
32250b436bca Initial re-import. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	219 if ((buf = dmMalloc(size)) == NULL)
32250b436bca Initial re-import. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	220 return NULL;
32250b436bca Initial re-import. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	221
32250b436bca Initial re-import. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	222 while (1)
32250b436bca Initial re-import. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	223 {
32250b436bca Initial re-import. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	224 va_list ap;
32250b436bca Initial re-import. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	225 va_copy(ap, args);
1884 47fe47f01fea Implement dm_strdup_vprintf_len(const char fmt, va_list args, int len), which Matti Hamalainen <ccr@tnsp.org> parents: 1102 diff changeset	226 *len = vsnprintf(buf, size, fmt, ap);
0 32250b436bca Initial re-import. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	227 va_end(ap);
32250b436bca Initial re-import. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	228
1884 47fe47f01fea Implement dm_strdup_vprintf_len(const char fmt, va_list args, int len), which Matti Hamalainen <ccr@tnsp.org> parents: 1102 diff changeset	229 if (len > -1 && len < size)
0 32250b436bca Initial re-import. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	230 return buf;
1884 47fe47f01fea Implement dm_strdup_vprintf_len(const char fmt, va_list args, int len), which Matti Hamalainen <ccr@tnsp.org> parents: 1102 diff changeset	231 if (*len > -1)
47fe47f01fea Implement dm_strdup_vprintf_len(const char fmt, va_list args, int len), which Matti Hamalainen <ccr@tnsp.org> parents: 1102 diff changeset	232 size = *len + 1;
0 32250b436bca Initial re-import. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	233 else
32250b436bca Initial re-import. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	234 size *= 2;
32250b436bca Initial re-import. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	235
836 85442780089f Fix reallocation. Matti Hamalainen <ccr@tnsp.org> parents: 817 diff changeset	236 if ((tmp = dmRealloc(buf, size)) == NULL)
85442780089f Fix reallocation. Matti Hamalainen <ccr@tnsp.org> parents: 817 diff changeset	237 {
85442780089f Fix reallocation. Matti Hamalainen <ccr@tnsp.org> parents: 817 diff changeset	238 dmFree(buf);
0 32250b436bca Initial re-import. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	239 return NULL;
836 85442780089f Fix reallocation. Matti Hamalainen <ccr@tnsp.org> parents: 817 diff changeset	240 }
85442780089f Fix reallocation. Matti Hamalainen <ccr@tnsp.org> parents: 817 diff changeset	241 else
85442780089f Fix reallocation. Matti Hamalainen <ccr@tnsp.org> parents: 817 diff changeset	242 buf = tmp;
0 32250b436bca Initial re-import. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	243 }
32250b436bca Initial re-import. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	244 }
32250b436bca Initial re-import. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	245
32250b436bca Initial re-import. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	246
1884 47fe47f01fea Implement dm_strdup_vprintf_len(const char fmt, va_list args, int len), which Matti Hamalainen <ccr@tnsp.org> parents: 1102 diff changeset	247 char dm_strdup_vprintf(const char fmt, va_list args)
47fe47f01fea Implement dm_strdup_vprintf_len(const char fmt, va_list args, int len), which Matti Hamalainen <ccr@tnsp.org> parents: 1102 diff changeset	248 {
47fe47f01fea Implement dm_strdup_vprintf_len(const char fmt, va_list args, int len), which Matti Hamalainen <ccr@tnsp.org> parents: 1102 diff changeset	249 int len;
47fe47f01fea Implement dm_strdup_vprintf_len(const char fmt, va_list args, int len), which Matti Hamalainen <ccr@tnsp.org> parents: 1102 diff changeset	250 return dm_strdup_vprintf_len(fmt, args, &len);
47fe47f01fea Implement dm_strdup_vprintf_len(const char fmt, va_list args, int len), which Matti Hamalainen <ccr@tnsp.org> parents: 1102 diff changeset	251 }
47fe47f01fea Implement dm_strdup_vprintf_len(const char fmt, va_list args, int len), which Matti Hamalainen <ccr@tnsp.org> parents: 1102 diff changeset	252
47fe47f01fea Implement dm_strdup_vprintf_len(const char fmt, va_list args, int len), which Matti Hamalainen <ccr@tnsp.org> parents: 1102 diff changeset	253
0 32250b436bca Initial re-import. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	254 char dm_strdup_printf(const char fmt, ...)
32250b436bca Initial re-import. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	255 {
1884 47fe47f01fea Implement dm_strdup_vprintf_len(const char fmt, va_list args, int len), which Matti Hamalainen <ccr@tnsp.org> parents: 1102 diff changeset	256 int len;
0 32250b436bca Initial re-import. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	257 char *res;
32250b436bca Initial re-import. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	258 va_list ap;
32250b436bca Initial re-import. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	259
32250b436bca Initial re-import. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	260 va_start(ap, fmt);
1884 47fe47f01fea Implement dm_strdup_vprintf_len(const char fmt, va_list args, int len), which Matti Hamalainen <ccr@tnsp.org> parents: 1102 diff changeset	261 res = dm_strdup_vprintf_len(fmt, ap, &len);
0 32250b436bca Initial re-import. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	262 va_end(ap);
32250b436bca Initial re-import. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	263
32250b436bca Initial re-import. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	264 return res;
32250b436bca Initial re-import. Matti Hamalainen <ccr@tnsp.org> parents: diff changeset	265 }

Mercurial > hg > dmlib

annotate src/dmstring.c @ 2027:750a7e125546