transcode.c (rb_econv_t): new fields: replacement_str, replacement_len, replacement_enc and replacement_allocated. (get_replacement_character): make len as size_t. (rb_econv_open_by_transcoder_entries): initialize the new fields. (rb_econv_close): deallocate replacement_str if it allocated. (make_replacement): new function. (output_replacement_character): use make_replacement. (rb_econv_set_replacemenet): defined. (econv_get_replacement): new method. (econv_set_replacement): new method.
include/ruby/encoding.h (rb_econv_set_replacemenet): declared.
transcode.c (rb_econv_t): new fields: replacement_str,
replacement_len, replacement_enc and replacement_allocated.
(get_replacement_character): make len as size_t.
(rb_econv_open_by_transcoder_entries): initialize the new fields.
(rb_econv_close): deallocate replacement_str if it allocated.
(make_replacement): new function.
(output_replacement_character): use make_replacement.
(rb_econv_set_replacemenet): defined.
(econv_get_replacement): new method.
(econv_set_replacement): new method.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@19108 b2dd03c8-39d4-4d8f-98ff-823fe69b080e