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* string.c (tr_trans): should not be affected by the encoding of
replacement unless actually modified. [ruby-talk:328967] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@22505 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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@ -1,3 +1,8 @@
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Sun Feb 22 14:33:06 2009 Nobuyoshi Nakada <nobu@ruby-lang.org>
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* string.c (tr_trans): should not be affected by the encoding of
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replacement unless actually modified. [ruby-talk:328967]
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Sun Feb 22 13:38:44 2009 Nobuyoshi Nakada <nobu@ruby-lang.org>
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* ext/socket/init.c (s_recvfrom_nonblock): handles EAGAIN too.
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25
string.c
25
string.c
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@ -4791,8 +4791,10 @@ tr_trans(VALUE str, VALUE src, VALUE repl, int sflag)
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char *buf = ALLOC_N(char, max), *t = buf;
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while (s < send) {
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c0 = c = rb_enc_codepoint(s, send, enc);
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tlen = clen = rb_enc_codelen(c, enc);
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int may_modify = 0;
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c0 = c = rb_enc_codepoint(s, send, e1);
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clen = rb_enc_codelen(c, e1);
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tlen = enc == e1 ? clen : rb_enc_codelen(c, enc);
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s += clen;
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if (c < 256) {
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@ -4819,6 +4821,7 @@ tr_trans(VALUE str, VALUE src, VALUE repl, int sflag)
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else {
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save = -1;
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c = c0;
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if (enc != e1) may_modify = 1;
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}
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while (t - buf + tlen >= max) {
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offset = t - buf;
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@ -4827,6 +4830,9 @@ tr_trans(VALUE str, VALUE src, VALUE repl, int sflag)
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t = buf + offset;
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}
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rb_enc_mbcput(c, t, enc);
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if (may_modify && memcmp(s, t, tlen) != 0) {
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modify = 1;
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}
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t += tlen;
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}
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*t = '\0';
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@ -4858,8 +4864,10 @@ tr_trans(VALUE str, VALUE src, VALUE repl, int sflag)
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char *buf = ALLOC_N(char, max), *t = buf;
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while (s < send) {
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c0 = c = rb_enc_codepoint(s, send, enc);
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tlen = clen = rb_enc_codelen(c, enc);
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int may_modify = 0;
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c0 = c = rb_enc_codepoint(s, send, e1);
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clen = rb_enc_codelen(c, e1);
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tlen = enc == e1 ? clen : rb_enc_codelen(c, enc);
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if (c < 256) {
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c = trans[c];
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@ -4881,8 +4889,8 @@ tr_trans(VALUE str, VALUE src, VALUE repl, int sflag)
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modify = 1;
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}
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else {
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modify = 1;
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c = c0;
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if (enc != e1) may_modify = 1;
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}
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while (t - buf + tlen >= max) {
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offset = t - buf;
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@ -4890,7 +4898,12 @@ tr_trans(VALUE str, VALUE src, VALUE repl, int sflag)
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REALLOC_N(buf, char, max);
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t = buf + offset;
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}
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if (s != t) rb_enc_mbcput(c, t, enc);
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if (s != t) {
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rb_enc_mbcput(c, t, enc);
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if (may_modify && memcmp(s, t, tlen) != 0) {
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modify = 1;
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}
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}
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s += clen;
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t += tlen;
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}
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@ -1395,6 +1395,9 @@ class TestString < Test::Unit::TestCase
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assert_equal(S("hippo"), S("hello").tr(S("el"), S("ip")))
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assert_equal(S("*e**o"), S("hello").tr(S("^aeiou"), S("*")))
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assert_equal(S("hal"), S("ibm").tr(S("b-z"), S("a-z")))
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a = "abc".force_encoding(Encoding::US_ASCII)
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assert_equal(Encoding::US_ASCII, a.tr(S("z"), S("\u0101")).encoding)
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end
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def test_tr!
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@ -1415,6 +1418,10 @@ class TestString < Test::Unit::TestCase
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a = S("ibm")
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assert_nil(a.tr!(S("B-Z"), S("A-Z")))
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assert_equal(S("ibm"), a)
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a = "abc".force_encoding(Encoding::US_ASCII)
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assert_nil(a.tr!(S("z"), S("\u0101")))
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assert_equal(Encoding::US_ASCII, a.encoding)
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end
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def test_tr_s
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