diff options
Diffstat (limited to 'regenc.c')
| -rw-r--r-- | regenc.c | 29 |
1 files changed, 26 insertions, 3 deletions
@@ -578,10 +578,33 @@ onigenc_not_support_get_ctype_code_range(OnigCtype ctype ARG_UNUSED, #ifdef ONIG_CASE_MAPPING extern int -onigenc_not_support_case_map (OnigCaseFoldType* flagP, const OnigUChar** pp, const OnigUChar* end, OnigUChar* to, OnigUChar* to_end, const struct OnigEncodingTypeST* enc) +onigenc_not_support_case_map (OnigCaseFoldType* flagP, const OnigUChar** pp, const OnigUChar* end, + OnigUChar* to, OnigUChar* to_end, const struct OnigEncodingTypeST* enc) { - fprintf(stderr, "Unimplemented case mapping functionality: onigenc_not_support_case_map\n"); - return ONIG_NO_SUPPORT_CONFIG; + OnigCodePoint code; + OnigUChar *to_start = to; + OnigCaseFoldType flags = *flagP; + int codepoint_length; + + to_end -= 4; /* longest possible length of a single character */ + + while (*pp<end && to<=to_end) { + codepoint_length = ONIGENC_PRECISE_MBC_ENC_LEN(enc, *pp, end); + if (codepoint_length < 0) + return codepoint_length; /* encoding invalid */ + code = ONIGENC_MBC_TO_CODE(enc, *pp, end); + *pp += codepoint_length; + + if (code>='a' && code<='z' && (flags&ONIGENC_CASE_UPCASE)) + flags |= ONIGENC_CASE_MODIFIED, code += 'A'-'a'; + else if (code>='A' && code<='Z' && (flags&(ONIGENC_CASE_DOWNCASE|ONIGENC_CASE_FOLD))) + flags |= ONIGENC_CASE_MODIFIED, code += 'a'-'A'; + to += ONIGENC_CODE_TO_MBC(enc, code, to); + if (flags & ONIGENC_CASE_TITLECASE) /* switch from titlecase to lowercase for capitalize */ + flags ^= (ONIGENC_CASE_UPCASE|ONIGENC_CASE_DOWNCASE|ONIGENC_CASE_TITLECASE); + } + *flagP = flags; + return (int)(to-to_start); } #endif /* ONIG_CASE_MAPPING */ |