| /* |
| * This file is in the public domain, so clarified as of |
| * 2006-07-17 by Arthur David Olson. |
| * |
| * IDENTIFICATION |
| * $PostgreSQL: pgsql/src/timezone/scheck.c,v 1.9 2008/02/16 21:16:04 tgl Exp $ |
| */ |
| |
| #include "postgres_fe.h" |
| |
| #include "private.h" |
| |
| |
| const char * |
| scheck(const char *string, const char *format) |
| { |
| char *fbuf; |
| const char *fp; |
| char *tp; |
| int c; |
| const char *result; |
| char dummy; |
| |
| result = ""; |
| if (string == NULL || format == NULL) |
| return result; |
| fbuf = imalloc((int) (2 * strlen(format) + 4)); |
| if (fbuf == NULL) |
| return result; |
| fp = format; |
| tp = fbuf; |
| while ((*tp++ = c = *fp++) != '\0') |
| { |
| if (c != '%') |
| continue; |
| if (*fp == '%') |
| { |
| *tp++ = *fp++; |
| continue; |
| } |
| *tp++ = '*'; |
| if (*fp == '*') |
| ++fp; |
| while (is_digit(*fp)) |
| *tp++ = *fp++; |
| if (*fp == 'l' || *fp == 'h') |
| *tp++ = *fp++; |
| else if (*fp == '[') |
| do |
| *tp++ = *fp++; |
| while (*fp != '\0' && *fp != ']'); |
| if ((*tp++ = *fp++) == '\0') |
| break; |
| } |
| *(tp - 1) = '%'; |
| *tp++ = 'c'; |
| *tp = '\0'; |
| if (sscanf(string, fbuf, &dummy) != 1) |
| result = (char *) format; |
| ifree(fbuf); |
| return result; |
| } |