* enc/iso_8859_15.c, test/ruby/enc/test_case_comprehensive.rb:

Implement non-ASCII case conversion for ISO-8859-15, by Maho Harada.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55591 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,8 @@
+Wed Jul  6 18:59:13 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
+
+	* enc/iso_8859_15.c, test/ruby/enc/test_case_comprehensive.rb:
+	  Implement non-ASCII case conversion for ISO-8859-15, by Maho Harada.
+
 Wed Jul  6 18:34:21 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
 	* enc/iso_8859_16.c, test/ruby/enc/test_case_comprehensive.rb:

enc/iso_8859_15.c

@@ -220,6 +220,69 @@ get_case_fold_codes_by_str(OnigCaseFoldType flag,
 	     flag, p, end, items);
 }
 
+#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;
+    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==0xAA || code==0xBA) ;
+	else if ((EncISO_8859_15_CtypeTable[code] & BIT_CTYPE_UPPER)
+		 && (flags & (ONIGENC_CASE_DOWNCASE|ONIGENC_CASE_FOLD))) {
+	    flags |= ONIGENC_CASE_MODIFIED;
+	    if (code==0xA6)
+		code += 2;
+	    else if (code==0xB4)
+		code += 4;
+	    else if (code==0xBC)
+		code += 1;
+	    else if (code==0xBE)
+		code += 0x41;
+	    else
+		code += 0x20;
+	}
+	else if ((EncISO_8859_15_CtypeTable[code]&BIT_CTYPE_LOWER)
+		 && (flags&ONIGENC_CASE_UPCASE)) {
+	    flags |= ONIGENC_CASE_MODIFIED;
+	    if (code==0xA8)
+		code -= 2;
+	    else if (code==0xB8)
+		code -= 4;
+	    else if (code==0xBD)
+		code -= 1;
+	    else if (code==0xFF)
+		code -= 0x41;
+	    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);
+}
+#endif   /* ONIG_CASE_MAPPING */
+
+
 OnigEncodingDefine(iso_8859_15, ISO_8859_15) = {
   onigenc_single_byte_mbc_enc_len,
   "ISO-8859-15",  /* name */
@@ -240,7 +303,7 @@ OnigEncodingDefine(iso_8859_15, ISO_8859_15) = {
   0,
   ONIGENC_FLAG_NONE,
 #ifdef ONIG_CASE_MAPPING
-  onigenc_single_byte_ascii_only_case_map,
+  case_map,
 #endif   /* ONIG_CASE_MAPPING */
 };
 ENC_ALIAS("ISO8859-15", "ISO-8859-15")

test/ruby/enc/test_case_comprehensive.rb

@@ -247,7 +247,7 @@ class TestComprehensiveCaseFold
   generate_ascii_only_case_mapping_tests 'ISO-8859-10'
   generate_ascii_only_case_mapping_tests 'ISO-8859-13'
   generate_ascii_only_case_mapping_tests 'ISO-8859-14'
-  generate_ascii_only_case_mapping_tests 'ISO-8859-15'
+  generate_case_mapping_tests 'ISO-8859-15'
   generate_case_mapping_tests 'ISO-8859-16'
   generate_ascii_only_case_mapping_tests 'KOI8-R'
   generate_ascii_only_case_mapping_tests 'KOI8-U'