diff options
| -rw-r--r-- | mbbsd/read.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/mbbsd/read.c b/mbbsd/read.c index e30c60c2..eb58e360 100644 --- a/mbbsd/read.c +++ b/mbbsd/read.c @@ -408,9 +408,12 @@ mail_forward(const fileheader_t * fhdr, const char *direct, int mode) } #endif +// return: 1 - found, 0 - fail. inline static int dbcs_strcasestr(const char* pool, const char *ptr) { +#if 0 + // old method int len = strlen(ptr); while(*pool) @@ -428,6 +431,50 @@ dbcs_strcasestr(const char* pool, const char *ptr) pool ++; } return 0; + +#endif + + int i = 0, i2 = 0, found = 0, + szpool = strlen(pool), + szptr = strlen(ptr); + + for (i = 0; i <= szpool-szptr; i++) + { + found = 1; + + // compare szpool[i..szptr] with ptr + for (i2 = 0; i2 < szptr; i2++) + { + if (pool[i + i2] > 0) + { + // ascii + if (ptr[i2] < 0 || + tolower(ptr[i2]) != tolower(pool[i+i2])) + { + // printf("break on ascii (i=%d, i2=%d).\n", i, i2); + found = 0; + break; + } + } else { + // non-ascii + if (ptr[i2] != pool[i+i2] || + ptr[i2+1] != pool[i+i2+1]) + { + // printf("break on non-ascii (i=%d, i2=%d).\n", i, i2); + found = 0; + break; + } + i2 ++; + } + } + + if (found) break; + + // next iteration: if target is DBCS, skip one more byte. + if (pool[i] < 0) + i++; + } + return found; } static int |