Previously, newline: :lf was accepted but ignored.  Where it
should have been used was commented out code that didn't work,
but unlike all other invalid values, using newline: :lf did
not raise an error.

This adds support for newline: :lf and :lf_newline, for consistency
with newline: :cr and :cr_newline.  This is basically the same as
universal_newline, except that it only affects writing and not
reading due to RUBY_ECONV_NEWLINE_DECORATOR_WRITE_MASK.

Add tests for the File.open :newline option while here.

Fixes [Bug #12436]

Function pointers are not void*.  See also
ce4ea956d24eab5089a143bba38126f2b11b55b6
8427fca49bd85205f5a8766292dd893f003c0e48

  after \r\n detection instead of just after \r.
  [ruby-list:45988] [ruby-core:25881] [ruby-core:26788]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@25883 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

* transcode.c (transcode_restartable0): don't need to cast the result
  of output functions.

* enc/trans/newline.trans: follow the type change.

* enc/trans/escape.trans: ditto.

* enc/trans/utf_16_32.trans: ditto.

* enc/trans/iso2022.trans: ditto.

* enc/trans/japanese.trans: ditto.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@19351 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

* transcode.c: give output buffer size for output functions.

* enc/trans/newline.trans: follow the type change.

* enc/trans/escape.trans: ditto.

* enc/trans/utf_16_32.trans: ditto.

* enc/trans/iso2022.trans: ditto.

* enc/trans/japanese.trans: ditto.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@19350 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

  and dst_encoding.

* transcode.c (rb_econv_decorate_at): call get_transcoder_entry only
  once.
  (rb_econv_binmode): follow universal_newline change.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@19276 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

  from rb_econv_stateless_encoding to apply stateless ASCII
  incompatible encodings such as UTF-16BE.

* io.c (make_writeconv): use rb_econv_asciicompat_encoding.

* transcode_data.h (rb_transcoder_asciicompat_type_t): renamed from
  rb_transcoder_stateful_type_t.
  (rb_transcoder): use rb_transcoder_asciicompat_type_t.

* transcode.c: follow the type change.
  (asciicompat_encoding_i): renamed from stateless_encoding_i.
  (rb_econv_asciicompat_encoding): renamed from
  rb_econv_stateless_encoding.
  (econv_s_asciicompat_encoding): method renamed.

* tool/transcode-tblgen.rb: follow the type change.

* enc/trans/utf_16_32.trans: follow the type change.
  rb_from_UTF_16BE to UTF-8 is asciicompat_decoder.
  rb_from_UTF_16LE to UTF-8 is asciicompat_decoder.
  rb_from_UTF_32BE to UTF-8 is asciicompat_decoder.
  rb_from_UTF_32LE to UTF-8 is asciicompat_decoder.
  UTF-8 to rb_to_UTF_16BE is asciicompat_encoder.
  UTF-8 to rb_to_UTF_16LE is asciicompat_encoder.
  UTF-8 to rb_to_UTF_32BE is asciicompat_encoder.
  UTF-8 to rb_to_UTF_32LE is asciicompat_encoder.

* enc/trans/newline.trans: follow the type change.  universal newline
  decoder is asciicompat_converter.

* enc/trans/escape.trans: follow the type change.

* enc/trans/iso2022.trans: ditto.

* enc/trans/japanese.trans: ditto.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@19249 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@19152 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

  newline decoder.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@19136 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

  add state field.
  (TRANSCODING_STATE): defined.
  (rb_transcoder): add fields: state_size, state_init_func,
  state_fini_func.
  change rb_transcoding* argument to void*.

* transcode.c (transcode_restartable0): use TRANSCODING_STATE for
  first arguments of transcoder functions.
  (rb_transcoding_open_by_transcoder): initialize state field.
  (rb_transcoding_close): finalize state field.

* tool/transcode-tblgen.rb: provide state size/init/fini.

* enc/trans/newline.trans (universal_newline_init): defined.
  (fun_so_universal_newline): take void* as a state pointer.
  (rb_universal_newline): provide state size/init/fini.
  (rb_crlf_newline): ditto.
  (rb_cr_newline): ditto.

* enc/trans/iso2022.trans (iso2022jp_init): defined.
  (fun_si_iso2022jp_to_eucjp): take void* as a state pointer.
  (fun_so_iso2022jp_to_eucjp): ditto.
  (fun_so_eucjp_to_iso2022jp): ditto.
  (iso2022jp_reset_sequence_size): ditto.
  (finish_eucjp_to_iso2022jp): ditto.
  (rb_ISO_2022_JP_to_EUC_JP): provide state size/init/fini.
  (rb_EUC_JP_to_ISO_2022_JP): ditto.

* enc/trans/utf_16_32.trans (fun_so_from_utf_16be): take void* as a
  state pointer.
  (fun_so_to_utf_16be): ditto.
  (fun_so_from_utf_16le): ditto.
  (fun_so_to_utf_16le): ditto.
  (fun_so_from_utf_32be): ditto.
  (fun_so_to_utf_32be): ditto.
  (fun_so_from_utf_32le): ditto.
  (fun_so_to_utf_32le): ditto.
  (rb_from_UTF_16BE): provide state size/init/fini.
  (rb_to_UTF_16BE): ditto.
  (rb_from_UTF_16LE): ditto.
  (rb_to_UTF_16LE): ditto.
  (rb_from_UTF_32BE): ditto.
  (rb_to_UTF_32BE): ditto.
  (rb_from_UTF_32LE): ditto.
  (rb_to_UTF_32LE): ditto.

* enc/trans/japanese.trans (fun_so_eucjp2sjis): take void* as a state
  pointer.
  (fun_so_sjis2eucjp): ditto.
  (rb_eucjp2sjis): provide state size/init/fini.
  (rb_sjis2eucjp): provide state size/init/fini.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@19096 b2dd03c8-39d4-4d8f-98ff-823fe69b080e