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case-folding.rb: perfect hash for case unfolding1

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* enc/unicode/case-folding.rb (lookup_hash): make perfect hash to
  lookup case unfolding table 1.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@46270 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2014-05-30 23:58:01 +00:00
parent c39e659263
commit 35348a0806
4 changed files with 1321 additions and 27 deletions
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20
enc/unicode.c
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@ -240,7 +240,6 @@ static const struct st_hash_type type_code3_hash = {
};
static st_table* Unfold1Table;
static st_table* Unfold2Table;
static st_table* Unfold3Table;
static int CaseFoldInited = 0;
@ -251,14 +250,6 @@ static int init_case_fold_table(void)
THREAD_ATOMIC_START;
Unfold1Table = st_init_numtable_with_size(UNFOLD1_TABLE_SIZE);
if (ONIG_IS_NULL(Unfold1Table)) return ONIGERR_MEMORY;
for (i = 0; i < numberof(CaseUnfold_11_Table); i++) {
const CaseUnfold_11_Type *p1 = &CaseUnfold_11_Table[i];
st_add_direct(Unfold1Table, (st_data_t )p1->from, (st_data_t )&(p1->to));
}
Unfold2Table = st_init_table_with_size(&type_code2_hash, UNFOLD2_TABLE_SIZE);
if (ONIG_IS_NULL(Unfold2Table)) return ONIGERR_MEMORY;
@ -281,16 +272,7 @@ static int init_case_fold_table(void)
}
#define onigenc_unicode_fold_lookup onigenc_unicode_CaseFold_11_lookup
static inline const CodePointList3 *
onigenc_unicode_unfold1_lookup(OnigCodePoint code)
{
st_data_t to;
if (onig_st_lookup(Unfold1Table, (st_data_t )code, &to) != 0) {
return (const CodePointList3 *)to;
}
return 0;
}
#define onigenc_unicode_unfold1_lookup onigenc_unicode_CaseUnfold_11_lookup
static inline const CodePointList2 *
onigenc_unicode_unfold2_lookup(const OnigCodePoint *code)