Index: trunk/src/libcschem/cnc_text_dyn.c
===================================================================
--- trunk/src/libcschem/cnc_text_dyn.c	(revision 2012)
+++ trunk/src/libcschem/cnc_text_dyn.c	(revision 2013)
@@ -47,11 +47,26 @@
 	return &hdr->attr;
 }
 
+static const char *get_filename(csch_sheet_t *sheet)
+{
+	const char *sep, *fn = sheet->hidlib.filename;
+
+	if (fn == NULL)
+		return "<not saved yet>";
+
+	sep = strrchr(fn, '/');
+	if (sep != NULL)
+		return sep+1; /* basename */
+
+	return fn;
+}
+
 static int csch_text_render_str_cb(void *ctx, gds_t *s, const char **input)
 {
 	const csch_text_t *text = ctx;
 	const csch_attribs_t *attrs;
 	char *end, key[128], *path;
+	const char *val = NULL;
 	size_t len;
 
 	end = strchr(*input, '%');
@@ -63,6 +78,11 @@
 	key[len] = '\0';
 	*input += len+1;
 
+	if (strcmp(key, "filename") == 0) {
+		val = get_filename(text->hdr.sheet);
+		goto append;
+	}
+
 	path = key;
 	attrs = get_attribs(&path, text);
 
@@ -69,12 +89,16 @@
 	if ((path[0] == 'A') && (path[1] == '.')) {
 		path+=2;
 		if (attrs != NULL) {
-			const char *val = csch_attrib_get_str(attrs, path);
-			if (val != NULL)
-				gds_append_str(s, val);
+			val = csch_attrib_get_str(attrs, path);
+			goto append;
 		}
 	}
 	return 0;
+
+	append:;
+	if (val != NULL)
+		gds_append_str(s, val);
+	return 0;
 }