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* enc/windows_1257.c, test/ruby/enc/test_case_comprehensive.rb:

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Implement non-ASCII case conversion for Windows-1257, by Sho Koike.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55752 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
duerst 2016-07-26 07:33:18 +00:00
parent 14dd8a17e8
commit 7b2b2869c9
3 changed files with 61 additions and 2 deletions
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56
enc/windows_1257.c
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@ -225,6 +225,60 @@ get_case_fold_codes_by_str(OnigCaseFoldType flag,
flag, p, end, items);
}
#define DOTLESS_i (0xB9)
#define I_WITH_DOT_ABOVE (0xA9)
static int
case_map (OnigCaseFoldType* flagP, const OnigUChar** pp,
const OnigUChar* end, OnigUChar* to, OnigUChar* to_end,
const struct OnigEncodingTypeST* enc)
{
OnigCodePoint code;
OnigUChar *to_start = to;
OnigCaseFoldType flags = *flagP;
while (*pp<end && to<to_end) {
code = *(*pp)++;
if (code==SHARP_s) {
if (flags&ONIGENC_CASE_UPCASE) {
flags |= ONIGENC_CASE_MODIFIED;
*to++ = 'S';
code = (flags&ONIGENC_CASE_TITLECASE) ? 's' : 'S';
}
else if (flags&ONIGENC_CASE_FOLD) {
flags |= ONIGENC_CASE_MODIFIED;
*to++ = 's';
code = 's';
}
}
else if (code==0xB5) ;
else if ((EncCP1252_CtypeTable[code] & BIT_CTYPE_UPPER)
&& (flags & (ONIGENC_CASE_DOWNCASE|ONIGENC_CASE_FOLD))) {
flags |= ONIGENC_CASE_MODIFIED;
if (code=='I')
code = flags&ONIGENC_CASE_FOLD_TURKISH_AZERI ? DOTLESS_i : 'i';
else
code = ENC_CP1252_TO_LOWER_CASE(code);
}
else if ((EncCP1252_CtypeTable[code]&BIT_CTYPE_LOWER)
&& (flags&ONIGENC_CASE_UPCASE)) {
flags |= ONIGENC_CASE_MODIFIED;
if (code=='i')
code = flags&ONIGENC_CASE_FOLD_TURKISH_AZERI ? I_WITH_DOT_ABOVE : 'I';
else if (code==DOTLESS_i)
code = 'I';
else if (code>=0xB0 && code<=0xBF )
code -= 0x10;
else
code -= 0x20;
}
*to++ = code;
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);
}
OnigEncodingDefine(windows_1257, Windows_1257) = {
onigenc_single_byte_mbc_enc_len,
"Windows-1257", /* name */
@ -244,7 +298,7 @@ OnigEncodingDefine(windows_1257, Windows_1257) = {
onigenc_always_true_is_allowed_reverse_match,
0,
ONIGENC_FLAG_NONE,
onigenc_single_byte_ascii_only_case_map,
case_map,
};
ENC_ALIAS("CP1257", "Windows-1257")