X-Git-Url: http://git.indexdata.com/?p=yaz-moved-to-github.git;a=blobdiff_plain;f=src%2Futf8.c;h=038b744a8b092fa8baf08f3da71c7394b8a7825b;hp=bf92cd32a2bff72e763bbb577620ae54ab42d1aa;hb=3e11596504862f376b7340848715d6f549864660;hpb=96c6e58f286787106e4a7b3bb3900a36051968d6

diff --git a/src/utf8.c b/src/utf8.c
index bf92cd3..038b744 100644
--- a/src/utf8.c
+++ b/src/utf8.c
@@ -1,5 +1,5 @@
 /* This file is part of the YAZ toolkit.
- * Copyright (C) 1995-2008 Index Data
+ * Copyright (C) 1995-2012 Index Data
  * See the file LICENSE for details.
  */
 /**
@@ -14,7 +14,6 @@
 #include <assert.h>
 #include <errno.h>
 #include <string.h>
-#include <ctype.h>
 
 #include "iconv-p.h"
 
@@ -22,7 +21,7 @@ static size_t init_utf8(yaz_iconv_t cd, yaz_iconv_decoder_t d,
                         unsigned char *inp,
                         size_t inbytesleft, size_t *no_read)
 {
-    if (inp[0] != 0xef)
+    if (!inp || inp[0] != 0xef)
     {
         *no_read = 0;
         return 0;
@@ -240,12 +239,32 @@ yaz_iconv_decoder_t yaz_utf8_decoder(const char *fromcode,
     }
     return 0;
 }
-   
+
+int yaz_utf8_check(const char *str)
+{
+    /* cast OK: yaz_read_UTF8_char is read-only */
+    unsigned char *inp = (unsigned char *) str;
+    size_t inbytesleft = strlen(str);
+
+    while (inbytesleft)
+    {
+        int error = 0;
+        size_t no_read;
+        yaz_read_UTF8_char(inp, inbytesleft, &no_read, &error);
+        if (error)
+            return 0;
+        inp += no_read;
+        inbytesleft -= no_read;
+    }
+    return 1;
+}   
 
 /*
  * Local variables:
  * c-basic-offset: 4
+ * c-file-style: "Stroustrup"
  * indent-tabs-mode: nil
  * End:
  * vim: shiftwidth=4 tabstop=8 expandtab
  */
+