Author: durner
Date: 2006-06-24 06:23:32 -0700 (Sat, 24 Jun 2006)
New Revision: 3030
Modified:
Extractor/src/plugins/mimeextractor.c
Log:
add SVG detection
Modified: Extractor/src/plugins/mimeextractor.c
===================================================================
--- Extractor/src/plugins/mimeextractor.c 2006-06-23 15:05:28 UTC (rev
3029)
+++ Extractor/src/plugins/mimeextractor.c 2006-06-24 13:23:32 UTC (rev
3030)
@@ -1,6 +1,6 @@
/*
This file is part of libextractor.
- (C) 2002, 2003 Vidyut Samanta and Christian Grothoff
+ (C) 2002, 2003, 2006 Vidyut Samanta and Christian Grothoff
libextractor is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published
@@ -126,6 +126,45 @@
}
/**
+ * Detect SVG
+ */
+static int svgMatcher(char *data,
+ size_t len,
+ ExtraPattern *arg) {
+ enum {XMLSTART, XMLCLOSE, SVGSTART, ABORT, OK} state;
+ size_t i;
+
+ i = 0;
+ state = XMLSTART;
+
+ while (i < len && state != ABORT) {
+ switch (state) {
+ case XMLSTART:
+ if (i + 6 >= len)
+ state = ABORT;
+ else if (memcmp(data + i, "<?xml", 5) == 0 && isspace(*(data + i + 5)))
+ state = XMLCLOSE;
+ break;
+ case XMLCLOSE:
+ if (i + 2 >= len)
+ state = ABORT;
+ else if (memcmp(data + i, "?>", 2) == 0)
+ state = SVGSTART;
+ break;
+ case SVGSTART:
+ if (i + 5 >= len)
+ state = ABORT;
+ else if (memcmp(data + i, "<svg", 4) == 0 && isspace(*(data + i + 4)))
+ state = OK;
+ }
+
+ i++;
+ }
+
+ return state == OK;
+}
+
+/**
* Use this detector, if the simple header-prefix matching is
* sufficient.
**/
@@ -236,6 +275,7 @@
{ "#!/bin/csh", 10, "application/x-shellscript", DEFAULT},
{ "#!/bin/tcsh", 11, "application/x-shellscript", DEFAULT},
{ "#!/bin/perl", 11, "application/x-perl", DEFAULT},
+ { "", 0, "image/svg+xml", svgMatcher, NULL},
{NULL, 0, NULL, DISABLED},
};
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