* transocode.c: register_functional_transcoder() added.

  (init_transcoder_table(: register ISO-2022-JP.
  (str_transcode): add preprocessor and postprocessor.

* transcode_data_japanese.c: add ISO-2022-JP support.

* transcode_data.h: moved transcoder and transcoding difinition from
  transcode.c.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@14607 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 39 insertions, 0 deletions

diff --git a/transcode_data.h b/transcode_data.h
index dc90c92a51..3131877a41 100644
--- a/transcode_data.h
+++ b/transcode_data.h
@@ -1,3 +1,20 @@
+/**********************************************************************
+
+  transcode_data.h -
+
+  $Author$
+  $Date$
+  created at: Mon 10 Dec 2007 14:01:47 JST 2007
+
+  Copyright (C) 2007 Martin Duerst
+
+**********************************************************************/
+
+#include "ruby/ruby.h"
+
+#ifndef RUBY_TRANSCODE_DATA_H
+#define RUBY_TRANSCODE_DATA_H 1
+
 typedef unsigned char base_element;
 
 typedef struct byte_lookup {
@@ -37,3 +54,25 @@ typedef struct byte_lookup {
 #define TWOTRAIL       /* legal but undefined if two more trailing UTF-8 */
 #define THREETRAIL     /* legal but undefined if three more trailing UTF-8 */
 
+/* dynamic structure, one per conversion (similar to iconv_t) */
+/* may carry conversion state (e.g. for iso-2022-jp) */
+typedef struct transcoding {
+    VALUE ruby_string_dest; /* the String used as the conversion destination,
+			       or NULL if something else is being converted */
+    char *(*flush_func)(struct transcoding*, int, int);
+} transcoding;
+
+/* static structure, one per supported encoding pair */
+typedef struct transcoder_st{
+    const char *from_encoding;
+    const char *to_encoding;
+    const BYTE_LOOKUP *conv_tree_start;
+    int max_output;
+    int from_utf8;
+    void (*preprocessor)(char**, char**, char*, char*,
+				struct transcoder_st *transcoder, struct transcoding*);
+    void (*postprocessor)(char**, char**, char*, char*,
+				 struct transcoder_st *transcoder, struct transcoding*);
+} transcoder;
+
+#endif /* RUBY_TRANSCODE_DATA_H */