constify CaseMappingSpecials

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56951 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

enc/unicode.c

@@ -725,7 +725,7 @@ onigenc_unicode_case_map(OnigCaseFoldType* flagP,
 
 		    MODIFIED;
 		    if (flags&OnigCaseFoldFlags(folded->n)&ONIGENC_CASE_SPECIALS) { /* special */
-			OnigCodePoint *SpecialsStart = CaseMappingSpecials + OnigSpecialIndexDecode(folded->n);
+			const OnigCodePoint *SpecialsStart = CaseMappingSpecials + OnigSpecialIndexDecode(folded->n);
 
 			if (OnigCaseFoldFlags(folded->n)&ONIGENC_CASE_IS_TITLECASE) { /* swapCASE available */
 			    if ((flags&(ONIGENC_CASE_UPCASE|ONIGENC_CASE_DOWNCASE))

enc/unicode/9.0.0/casefold.h

@@ -6931,7 +6931,7 @@ onigenc_unicode_CaseUnfold_13_lookup(const OnigCodePoint *codes)
   return 0;
 }
 
-OnigCodePoint CaseMappingSpecials[] = {
+static const OnigCodePoint CaseMappingSpecials[] = {
     L(1)|0x039C,
     L(2)|0x0053, 0x0073, L(2)|0x0053, 0x0053,
     L(2)|0x02BC, 0x004E,

enc/unicode/case-folding.rb

@@ -326,7 +326,7 @@ class CaseMapping
   end
 
   def specials_output
-    "OnigCodePoint CaseMappingSpecials[] = {\n" +
+    "static const OnigCodePoint CaseMappingSpecials[] = {\n" +
     @specials.map do |sps|
       '   ' + sps.map do |sp|
         chars = sp.split(/ /)