From dbe61389396a4fb8ee50f6a5bd5fe4219ed43290 Mon Sep 17 00:00:00 2001
From: Peter Verthez <Peter.Verthez@advalvas.be>
Date: Sun, 1 Dec 2002 09:11:40 +0000
Subject: [PATCH] Some changes in interface.

---
 utf8/utf8-locale.c | 14 ++++++++------
 utf8/utf8.h        | 17 +++++++++++++++--
 2 files changed, 23 insertions(+), 8 deletions(-)

diff --git a/utf8/utf8-locale.c b/utf8/utf8-locale.c
index 115c66e..9ede577 100644
--- a/utf8/utf8-locale.c
+++ b/utf8/utf8-locale.c
@@ -16,11 +16,6 @@
 
 static convert_t locale_conv = NULL;
 
-void convert_set_unknown(const char* unknown)
-{
-  conversion_set_unknown(locale_conv, unknown);
-}
-
 void close_conversion_contexts()
 {
   cleanup_utf8_conversion(locale_conv);
@@ -29,7 +24,7 @@ void close_conversion_contexts()
 int open_conversion_contexts()
 {
   assert (locale_conv == NULL);
-  locale_conv = initialize_utf8_conversion(locale_charset());
+  locale_conv = initialize_utf8_conversion(locale_charset(), 0);
 
   if (locale_conv) {
     atexit(close_conversion_contexts);
@@ -40,6 +35,13 @@ int open_conversion_contexts()
   }
 }
 
+void convert_set_unknown(const char* unknown)
+{
+  if (!locale_conv)
+    open_conversion_contexts();
+  conversion_set_unknown(locale_conv, unknown);
+}
+
 char* convert_utf8_to_locale(const char* input, int *conv_fails)
 {
   if (!locale_conv)
diff --git a/utf8/utf8.h b/utf8/utf8.h
index 425b7a4..e2a6f3b 100644
--- a/utf8/utf8.h
+++ b/utf8/utf8.h
@@ -21,11 +21,14 @@ extern "C" {
 struct conv_buffer {
   char*   buffer;
   size_t  size;
+  int     type;  /* For internal use */
 };
 
 struct convert {
   iconv_t from_utf8;
   iconv_t to_utf8;
+  struct conv_buffer* inbuf;
+  size_t  insize;
   struct conv_buffer* outbuf;
   char*   unknown;
 };
@@ -39,14 +42,24 @@ int   utf8_strlen(const char* input);
   /* Returns 1 if string is valid UTF-8 string, 0 otherwise */
 int   is_utf8_string(const char* input);
 
+  /* Functions for creating and freeing conversion buffers yourself */
+struct conv_buffer* create_conv_buffer(int size);
+void free_conv_buffer(struct conv_buffer* buf);
+  
   /* General conversion interface (is bidirectional) */
-convert_t initialize_utf8_conversion(const char* charset);
+  /* Pass 0 for external_outbuf unless you want to control the
+     output buffer yourself */
+convert_t initialize_utf8_conversion(const char* charset, int external_outbuf);
 int   conversion_set_unknown(convert_t conv, const char* unknown);
+int   conversion_set_output_buffer(convert_t conv, struct conv_buffer* buf);
 void  cleanup_utf8_conversion(convert_t conv);
 char* convert_from_utf8(convert_t conv, const char* input, int* conv_fails);
 char* convert_to_utf8(convert_t conv, const char* input);
+char* convert_to_utf8_incremental(convert_t conv,
+				  const char* input, size_t input_len);
 
-  /* Specific locale conversion interface */
+  /* Specific locale conversion interface (initializes a convert_t structure
+     implicitly */
 void  convert_set_unknown(const char* unknown);
 char* convert_utf8_to_locale(const char* input, int *conv_fails);
 char* convert_locale_to_utf8(const char* input);
-- 
2.30.2