From e3600eaca1b74ffc59ac4821a05b48055ec5d0b5 Mon Sep 17 00:00:00 2001
From: duerst <duerst@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Wed, 13 Jul 2016 05:40:12 +0000
Subject: * enc/iso_8859_5.c, test/ruby/enc/test_case_comprehensive.rb:  
 Implement non-ASCII case conversion for ISO-8859-5, by Masaru Onodera. *
 test/ruby/enc/test_case_comprehensive.rb: Fix order of encodings.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55658 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 enc/iso_8859_5.c | 36 +++++++++++++++++++++++++++++++++++-
 1 file changed, 35 insertions(+), 1 deletion(-)

(limited to 'enc')

diff --git a/enc/iso_8859_5.c b/enc/iso_8859_5.c
index c538d56e31..a4e860db14 100644
--- a/enc/iso_8859_5.c
+++ b/enc/iso_8859_5.c
@@ -209,6 +209,40 @@ 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 ((EncISO_8859_5_CtypeTable[code] & BIT_CTYPE_UPPER)
+	     && (flags & (ONIGENC_CASE_DOWNCASE|ONIGENC_CASE_FOLD))) {
+      flags |= ONIGENC_CASE_MODIFIED;
+      code = ENC_ISO_8859_5_TO_LOWER_CASE(code);
+    }
+    else if ((EncISO_8859_5_CtypeTable[code]&BIT_CTYPE_LOWER)
+	     && (flags&ONIGENC_CASE_UPCASE)) {
+      flags |= ONIGENC_CASE_MODIFIED;
+      if (0xF1<=code && code<=0xFF)
+	code -= 0x50;
+      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_5, ISO_8859_5) = {
   onigenc_single_byte_mbc_enc_len,
   "ISO-8859-5",  /* name */
@@ -229,7 +263,7 @@ OnigEncodingDefine(iso_8859_5, ISO_8859_5) = {
   0,
   ONIGENC_FLAG_NONE,
 #ifdef ONIG_CASE_MAPPING
-  onigenc_single_byte_ascii_only_case_map,
+  case_map,
 #endif   /* ONIG_CASE_MAPPING */
 };
 ENC_ALIAS("ISO8859-5", "ISO-8859-5")
-- 
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