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icu4c/source/tools/tzcode/scheck.c
64 строки
1 KB
Yoshito Umaoka
ICU-10827 Updated ICU modified version of tzcode to 2014b level.
03 май 2014, 03:24
03 май 2014, 03:24
114c7ab
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/* ** This file is in the public domain, so clarified as of ** 2006-07-17 by Arthur David Olson. */ /*LINTLIBRARY*/ #include "private.h" const char * scheck(const char *const string, const char *const format) { register char * fbuf; register const char * fp; register char * tp; register int c; register const char * result; char dummy; result = ""; if (string == NULL || format == NULL) return result; fbuf = malloc(2 * strlen(format) + 4); if (fbuf == NULL) return result; fp = format; tp = fbuf; /* ** Copy directives, suppressing each conversion that is not ** already suppressed. Scansets containing '%' are not ** supported; e.g., the conversion specification "%[%]" is not ** supported. Also, multibyte characters containing a ** non-leading '%' byte are not supported. */ while ((*tp++ = c = *fp++) != '\0') { if (c != '%') continue; if (is_digit(*fp)) { char const *f = fp; char *t = tp; do { *t++ = c = *f++; } while (is_digit(c)); if (c == '$') { fp = f; tp = t; } } *tp++ = '*'; if (*fp == '*') ++fp; if ((*tp++ = *fp++) == '\0') break; } *(tp - 1) = '%'; *tp++ = 'c'; *tp = '\0'; if (sscanf(string, fbuf, &dummy) != 1) result = format; free(fbuf); return result; }