X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavutil%2Fbprint.c;h=e12fb263fe791090f013d50b9b9f53a5ca59d054;hb=1c7f252783aec37e4ff8049476386f63afe91756;hp=2f059c5ba6bfd66e6d9fd98d02394fa226b92776;hpb=92219ef4ac01b00e630b39cb19e8fbd17fdb63d0;p=ffmpeg

diff --git a/libavutil/bprint.c b/libavutil/bprint.c
index 2f059c5ba6b..e12fb263fe7 100644
--- a/libavutil/bprint.c
+++ b/libavutil/bprint.c
@@ -283,6 +283,35 @@ void av_bprint_escape(AVBPrint *dstbuf, const char *src, const char *special_cha
         av_bprint_chars(dstbuf, '\'', 1);
         break;
 
+    case AV_ESCAPE_MODE_XML:
+        /* escape XML non-markup character data as per 2.4 by default: */
+        /*  [^<&]* - ([^<&]* ']]>' [^<&]*) */
+
+        /* additionally, given one of the AV_ESCAPE_FLAG_XML_* flags, */
+        /* escape those specific characters as required. */
+        for (; *src; src++) {
+            switch (*src) {
+            case '&' : av_bprintf(dstbuf, "%s", "&amp;");  break;
+            case '<' : av_bprintf(dstbuf, "%s", "&lt;");   break;
+            case '>' : av_bprintf(dstbuf, "%s", "&gt;");   break;
+            case '\'':
+                if (!(flags & AV_ESCAPE_FLAG_XML_SINGLE_QUOTES))
+                    goto XML_DEFAULT_HANDLING;
+
+                av_bprintf(dstbuf, "%s", "&apos;");
+                break;
+            case '"' :
+                if (!(flags & AV_ESCAPE_FLAG_XML_DOUBLE_QUOTES))
+                    goto XML_DEFAULT_HANDLING;
+
+                av_bprintf(dstbuf, "%s", "&quot;");
+                break;
+XML_DEFAULT_HANDLING:
+            default: av_bprint_chars(dstbuf, *src, 1);
+            }
+        }
+        break;
+
     /* case AV_ESCAPE_MODE_BACKSLASH or unknown mode */
     default:
         /* \-escape characters */