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* transcode_data.h (rb_transcoding): add fields for restartable

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transcoding.
  (rb_transcoder): add max_input field.
  from_unit_length field is renamed to input_unit_length.

* tool/transcode-tblgen.rb: generate max_input field.

* enc/trans/iso2022.erb.c: follow rb_transcoder change.

* enc/trans/utf_16_32.erb.c: ditto.

* transcode.c (PARTIAL_INPUT): new constant.
  (transcode_char_start): new function.
  (transcode_result_t): new type.
  (transcode_restartable): new function.
  (more_output_buffer): new function.
  (transcode_loop): use transcode_restartable.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@18452 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
akr 2008-08-09 06:02:01 +00:00
parent 750cb61e65
commit 139234e1a0
6 changed files with 439 additions and 82 deletions
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15
transcode_data.h
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@ -64,15 +64,28 @@ typedef struct rb_transcoding {
or NULL if something else is being converted */
unsigned char *(*flush_func)(struct rb_transcoding*, int, int);
int resume_position;
const BYTE_LOOKUP *next_table;
int readlen;
union {
unsigned char ary[8]; /* max_input <= sizeof(ary) */
unsigned char *ptr; /* length is max_input */
} readbuf;
unsigned char stateful[256]; /* opaque data for stateful encoding */
} rb_transcoding;
#define TRANSCODING_READBUF(tc) \
((tc)->transcoder->max_input <= sizeof((tc)->readbuf.ary) ? \
(tc)->readbuf.ary : \
(tc)->readbuf.ptr)
/* static structure, one per supported encoding pair */
typedef struct rb_transcoder {
const char *from_encoding;
const char *to_encoding;
const BYTE_LOOKUP *conv_tree_start;
int from_unit_length;
int input_unit_length;
int max_input;
int max_output;
VALUE (*func_ii)(rb_transcoding*, VALUE); /* info -> info */
VALUE (*func_si)(rb_transcoding*, const unsigned char*, size_t); /* start -> info */