diff options
Diffstat (limited to 'src/gb18030.c')
| -rw-r--r-- | src/gb18030.c | 38 |
1 files changed, 36 insertions, 2 deletions
diff --git a/src/gb18030.c b/src/gb18030.c index 36fc3de..c8b5865 100644 --- a/src/gb18030.c +++ b/src/gb18030.c @@ -76,9 +76,43 @@ gb18030_mbc_enc_len(const UChar* p) } static int -is_valid_mbc_string(const UChar* s, const UChar* end) +is_valid_mbc_string(const UChar* p, const UChar* end) { - return onigenc_length_check_is_valid_mbc_string(ONIG_ENCODING_GB18030, s, end); + while (p < end) { + if (*p < 0x80) { + p++; + } + else if (*p == 0x80 || *p == 0xff) { + return FALSE; + } + else { + p++; + if (p >= end) return FALSE; + if (*p < 0x40) { + if (*p < 0x30 || *p > 0x39) + return FALSE; + + p++; + if (p >= end) return FALSE; + if (*p < 0x81 || *p == 0xff) return FALSE; + + p++; + if (p >= end) return FALSE; + if (*p < 0x30 || *p > 0x39) + return FALSE; + + p++; + } + else if (*p == 0x7f || *p == 0xff) { + return FALSE; + } + else { + p++; + } + } + } + + return TRUE; } static OnigCodePoint |