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* encoding.c (rb_enc_compatible): check if two objects have compatible

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encodings.

* encoding.c (enc_compatible_p): added Encoding.compatible?.

* include/ruby/encoding.h (rb_enc_compatible): prototype.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@13750 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2007-10-22 01:57:08 +00:00
parent b2c81746ac
commit 00befb4b3f
4 changed files with 34 additions and 4 deletions
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22
encoding.c
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@ -338,6 +338,15 @@ rb_enc_get(VALUE obj)
rb_encoding*
rb_enc_check(VALUE str1, VALUE str2)
{
rb_encoding *enc = rb_enc_compatible(str1, str2);
if (!enc)
rb_raise(rb_eArgError, "character encodings differ");
return enc;
}
rb_encoding*
rb_enc_compatible(VALUE str1, VALUE str2)
{
int idx1, idx2;
rb_encoding *enc;
@ -371,7 +380,7 @@ rb_enc_check(VALUE str1, VALUE str2)
rb_enc_asciicompat(enc = rb_enc_from_index(idx2)))
return enc;
}
rb_raise(rb_eArgError, "character encodings differ");
return 0;
}
void
@ -510,6 +519,16 @@ enc_find(VALUE klass, VALUE enc)
return rb_enc_from_encoding(rb_enc_from_index(idx));
}
static VALUE
enc_compatible_p(VALUE klass, VALUE str1, VALUE str2)
{
rb_encoding *enc = rb_enc_compatible(str1, str2);
VALUE encoding = Qnil;
if (!enc || !(encoding = rb_enc_from_encoding(enc)))
encoding = Qnil;
return encoding;
}
/* :nodoc: */
static VALUE
enc_dump(int argc, VALUE *argv, VALUE self)
@ -621,6 +640,7 @@ Init_Encoding(void)
rb_define_method(rb_cEncoding, "name", enc_name, 0);
rb_define_singleton_method(rb_cEncoding, "list", enc_list, 0);
rb_define_singleton_method(rb_cEncoding, "find", enc_find, 1);
rb_define_singleton_method(rb_cEncoding, "compatible?", enc_compatible_p, 2);
rb_define_method(rb_cEncoding, "_dump", enc_dump, -1);
rb_define_singleton_method(rb_cEncoding, "_load", enc_load, 1);