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authorduerst <duerst@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2016-06-11 00:46:21 +0000
committerduerst <duerst@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2016-06-11 00:46:21 +0000
commit02f7ad6237466d552c21f1cc78acd33febaa5ee6 (patch)
treec32a0bd7e9732f3f387ece638559ef79149c2b44 /enc/iso_8859_1.c
parente8700ab03d78a619fadd13cee67b0c7fd135d834 (diff)
* enc/iso_8859_1.c: Implement non-ASCII case mapping.
* test/ruby/enc/test_case_comprehensive.rb: Tests for above. * string.c: Add iso-8859-1 to supported encodings. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55373 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'enc/iso_8859_1.c')
-rw-r--r--enc/iso_8859_1.c45
1 files changed, 44 insertions, 1 deletions
diff --git a/enc/iso_8859_1.c b/enc/iso_8859_1.c
index 10f63cc..5f0d3f9 100644
--- a/enc/iso_8859_1.c
+++ b/enc/iso_8859_1.c
@@ -254,6 +254,49 @@ is_code_ctype(OnigCodePoint code, unsigned int ctype, OnigEncoding enc ARG_UNUSE
return FALSE;
}
+#ifdef ONIG_CASE_MAPPING
+static int
+case_map (OnigCaseFoldType* flagP, const OnigUChar** pp,
+ const OnigUChar* end, OnigUChar* to, OnigUChar* to_end,
+ const struct OnigEncodingTypeST* enc)
+{
+ OnigCodePoint code, lower;
+ OnigUChar *to_start = to;
+ OnigCaseFoldType flags = *flagP;
+
+ while (*pp<end && to<to_end) {
+ code = *(*pp)++;
+ if (code==0xdf) { /* 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 ((lower=ONIGENC_ISO_8859_1_TO_LOWER_CASE(code)) != code)
+ && (flags&ONIGENC_CASE_UPCASE)) {
+ flags |= ONIGENC_CASE_MODIFIED;
+ code = lower;
+ }
+ else if ((EncISO_8859_1_CtypeTable[code]&BIT_CTYPE_LOWER)
+ && (flags&ONIGENC_CASE_UPCASE)) {
+ flags |= ONIGENC_CASE_MODIFIED;
+ 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);
+}
+#endif /* ONIG_CASE_MAPPING */
+
OnigEncodingDefine(iso_8859_1, ISO_8859_1) = {
onigenc_single_byte_mbc_enc_len,
"ISO-8859-1", /* name */
@@ -274,7 +317,7 @@ OnigEncodingDefine(iso_8859_1, ISO_8859_1) = {
0,
ONIGENC_FLAG_NONE,
#ifdef ONIG_CASE_MAPPING
- onigenc_single_byte_ascii_only_case_map,
+ case_map,
#endif /* ONIG_CASE_MAPPING */
};
ENC_ALIAS("ISO8859-1", "ISO-8859-1")