Encoding revision

1 files changed, 61 insertions, 0 deletions

diff --git a/common/strutils.c b/common/strutils.c
index 47494de..ffd95c3 100644
--- a/common/strutils.c
+++ b/common/strutils.c
@@ -193,3 +193,64 @@ char* resolve_relative(const char *source, const char *point_to)
 
   return canon;
 }
+
+
+
+//  Originally stolen from wine-0.9.19, utf8.c
+//  Copyright 2000 Alexandre Julliard
+char*
+wide_to_utf8 (const wchar_t *src)
+{
+#define CONV_BUFF_MAX 32768
+  int len;
+  char *buf, *dst, *ret;
+
+  buf = (char *) malloc (CONV_BUFF_MAX);
+  memset (&buf[0], 0, CONV_BUFF_MAX);
+  dst = buf;
+
+  if (src)
+  for (len = CONV_BUFF_MAX; *src; src++)
+  {
+      wchar_t ch = *src;
+
+      if (ch < 0x80)  /* 0x00-0x7f: 1 byte */
+      {
+          if (!len--) {
+            log ("wide_to_utf8: error converting input string, overflow.\n");
+            break;  /* overflow */
+          }
+          *dst++ = ch;
+          continue;
+      }
+
+      if (ch < 0x800)  /* 0x80-0x7ff: 2 bytes */
+      {
+          if ((len -= 2) < 0) {
+            log ("wide_to_utf8: error converting input string, overflow.\n");
+            break;  /* overflow */
+          }
+          dst[1] = 0x80 | (ch & 0x3f);
+          ch >>= 6;
+          dst[0] = 0xc0 | ch;
+          dst += 2;
+          continue;
+      }
+
+      /* 0x800-0xffff: 3 bytes */
+      if ((len -= 3) < 0) {
+        log ("wide_to_utf8: error converting input string, overflow.\n");
+        break;  /* overflow */
+      }
+      dst[2] = 0x80 | (ch & 0x3f);
+      ch >>= 6;
+      dst[1] = 0x80 | (ch & 0x3f);
+      ch >>= 6;
+      dst[0] = 0xe0 | ch;
+      dst += 3;
+  }
+
+  ret = g_strdup (buf);
+  free (buf);
+  return ret;
+}