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101 lines
2.9 KiB
C
101 lines
2.9 KiB
C
/* Collection of frog DNA
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*
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* Copyright (c) 2008-2016 Joachim Nilsson <troglobit@gmail.com>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#ifndef LITE_STRING_H_
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#define LITE_STRING_H_
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#include <string.h>
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#include "strdupa.h"
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#include "strndupa.h"
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#include "strnlen.h"
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#ifndef strlcpy
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size_t strlcpy (char *dst, const char *src, size_t siz);
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#endif
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#ifndef strlcat
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size_t strlcat (char *dst, const char *src, size_t siz);
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#endif
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#ifndef strtonum
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long long strtonum (const char *numstr, long long minval, long long maxval, const char **errstrp);
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#endif
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/* Convert string to natural number (0-2147483647), returns -1 on error. */
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static inline int atonum(const char *str)
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{
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int val = -1;
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const char *errstr;
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if (str) {
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val = strtonum(str, 0, INT32_MAX, &errstr);
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if (errstr)
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return -1;
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}
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return val;
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}
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/* Validate string, non NULL and not zero length */
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static inline int string_valid(const char *s)
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{
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return s && strlen(s);
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}
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/* Relaxed comparison, e.g., sys_string_match("small", "smaller") => TRUE */
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static inline int string_match(const char *a, const char *b)
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{
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size_t min = MIN(strlen(a), strlen(b));
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return !strncasecmp(a, b, min);
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}
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/* Strict comparison, e.g., sys_string_match("small", "smaller") => FALSE */
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static inline int string_compare(const char *a, const char *b)
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{
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return strlen(a) == strlen(b) && !strcmp(a, b);
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}
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/* Strict comparison, like sys_string_compare(), but case insensitive,
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* e.g., sys_string_match("small", "SmAlL") => TRUE
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*/
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static inline int string_case_compare(const char *a, const char *b)
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{
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return strlen (a) == strlen (b) && !strcasecmp (a, b);
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}
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#define min(a,b) \
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({ \
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__typeof__ (a) _a = (a); \
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__typeof__ (b) _b = (b); \
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_a < _b ? _a : _b; \
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})
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#define max(a,b) \
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({ \
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__typeof__ (a) _a = (a); \
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__typeof__ (b) _b = (b); \
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_a > _b ? _a : _b; \
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})
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#endif /* LITE_STRING_H_ */
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