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Set encoding and strip bom when modeenc string is "r:foo-bom" [ruby-dev:37236]

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* include/ruby/io.h (FMODE_STRIP_BOM): new constant.

* io.c (io_encname_bom_p): judge whether the encoding name
  is *-bom or not.
  (parse_mode_enc): drop "-bom".
  (rb_io_modestr_fmode): set FMODE_STRIP_BOM if needed.
  (rb_io_extract_modeenc): ditto.
  (io_strip_bom): strip bom if exists.
  (io_set_encoding_by_bom): set encoding if there is bom.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@24001 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
naruse 2009-07-09 14:47:48 +00:00
parent a113d4f843
commit 634cfdc6e6
3 changed files with 127 additions and 2 deletions
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include/ruby/io.h
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@ -94,6 +94,7 @@ typedef struct rb_io_t {
#define FMODE_TEXTMODE 0x00001000
#define FMODE_EOF 0x00002000
/* #define FMODE_PREP 0x00010000 */
#define FMODE_STRIP_BOM 0x00100000
#define GetOpenFile(obj,fp) rb_io_check_closed((fp) = RFILE(rb_io_taint_check(obj))->fptr)