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* string.c (rb_str_count): optimized for 1byte string count by
avoiding tr_setup_table(). git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@23523 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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2 changed files with 23 additions and 6 deletions
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@ -53,6 +53,11 @@ Wed May 20 18:34:30 2009 Nobuyoshi Nakada <nobu@ruby-lang.org>
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* enumerator.c (inspect_enumerator): should use long.
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Wed May 20 09:18:44 2009 Yukihiro Matsumoto <matz@ruby-lang.org>
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* string.c (rb_str_count): optimized for 1byte string count by
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avoiding tr_setup_table().
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Wed May 20 06:25:29 2009 Yukihiro Matsumoto <matz@ruby-lang.org>
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* encoding.c (rb_enc_fast_mbclen): faster mbclen for strings known
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24
string.c
24
string.c
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@ -5380,19 +5380,31 @@ rb_str_count(int argc, VALUE *argv, VALUE str)
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rb_raise(rb_eArgError, "wrong number of arguments");
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}
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for (i=0; i<argc; i++) {
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VALUE s = argv[i];
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VALUE tstr = argv[i];
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unsigned char c;
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StringValue(s);
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enc = rb_enc_check(str, s);
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tr_setup_table(s, table, i==0, &del, &nodel, enc);
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StringValue(tstr);
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enc = rb_enc_check(str, tstr);
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if (argc == 1 && RSTRING_LEN(tstr) == 1 && rb_enc_asciicompat(enc) &&
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(c = RSTRING_PTR(tstr)[0]) < 0x80 && !is_broken_string(str)) {
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int n = 0;
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s = RSTRING_PTR(str);
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if (!s || RSTRING_LEN(str) == 0) return INT2FIX(0);
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send = RSTRING_END(str);
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while (s < send) {
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if (*(unsigned char*)s++ == c) n++;
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}
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return INT2NUM(n);
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}
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tr_setup_table(tstr, table, i==0, &del, &nodel, enc);
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}
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s = RSTRING_PTR(str);
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if (!s || RSTRING_LEN(str) == 0) return INT2FIX(0);
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send = RSTRING_END(str);
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i = 0;
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ascompat = rb_enc_asciicompat(enc);
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i = 0;
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while (s < send) {
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unsigned int c;
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int clen;
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