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authorduerst <duerst@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2016-07-26 06:30:39 +0000
committerduerst <duerst@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2016-07-26 06:30:39 +0000
commitc8a1d8b33bc612e6c58e3fbeb3226375bc4f4184 (patch)
treed61734fc54466bb179cffb3763974102a7ca60e1 /enc
parent18440efa3af1719fee43b8a4184a3a0e5b09ffee (diff)
* enc/windows_1251.c, test/ruby/enc/test_case_comprehensive.rb:
Implement non-ASCII case conversion for Windows-1251, by Shunsuke Sato. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55749 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'enc')
-rw-r--r--enc/windows_1251.c43
1 files changed, 42 insertions, 1 deletions
diff --git a/enc/windows_1251.c b/enc/windows_1251.c
index b9675cf..0f9b7fa 100644
--- a/enc/windows_1251.c
+++ b/enc/windows_1251.c
@@ -180,6 +180,47 @@ cp1251_get_case_fold_codes_by_str(OnigCaseFoldType flag,
flag, p, end, items);
}
+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 ((EncCP1251_CtypeTable[code] & BIT_CTYPE_UPPER)
+ && (flags & (ONIGENC_CASE_DOWNCASE|ONIGENC_CASE_FOLD))) {
+ flags |= ONIGENC_CASE_MODIFIED;
+ code = ENC_CP1251_TO_LOWER_CASE(code);
+ }
+ else if (code==0xB5) ;
+ else if ((EncCP1251_CtypeTable[code]&BIT_CTYPE_LOWER)
+ && (flags&ONIGENC_CASE_UPCASE)) {
+ flags |= ONIGENC_CASE_MODIFIED;
+ if ((0x61<=code && code<=0x7A) || (0xE0<=code && code<=0xFF))
+ code -= 0x20;
+ else if (code==0xA2 || code==0xB3 || code==0xBE)
+ code -= 0x01;
+ else if (code==0x83)
+ code = 0x81;
+ else if (code==0xBC)
+ code = 0xA3;
+ else if (code==0xB4)
+ code = 0xA5;
+ else
+ code -= 0x10;
+ }
+ *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_1251, Windows_1251) = {
onigenc_single_byte_mbc_enc_len,
"Windows-1251", /* name */
@@ -199,7 +240,7 @@ OnigEncodingDefine(windows_1251, Windows_1251) = {
onigenc_always_true_is_allowed_reverse_match,
0,
ONIGENC_FLAG_NONE,
- onigenc_single_byte_ascii_only_case_map,
+ case_map,
};
/*
* Name: windows-1251