66 lines
1.6 KiB
Diff
66 lines
1.6 KiB
Diff
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--- a/cmd/tools/graphml2gv.c
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+++ b/cmd/tools/graphml2gv.c
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@@ -477,8 +468,10 @@
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if (pos > 0) {
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const char *attrname;
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attrname = atts[pos];
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-
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- bind_node(attrname);
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+ if (G == 0)
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+ fprintf(stderr,"node %s outside graph, ignored\n",attrname);
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+ else
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+ bind_node(attrname);
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pushString(&ud->elements, attrname);
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}
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@@ -504,21 +497,25 @@
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if (tname)
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head = tname;
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- bind_edge(tail, head);
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-
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- t = AGTAIL(E);
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- tname = agnameof(t);
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-
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- if (strcmp(tname, tail) == 0) {
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- ud->edgeinverted = FALSE;
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- } else if (strcmp(tname, head) == 0) {
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- ud->edgeinverted = TRUE;
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- }
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-
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- pos = get_xml_attr("id", atts);
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- if (pos > 0) {
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- setEdgeAttr(E, GRAPHML_ID, (char *) atts[pos], ud);
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- }
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+ if (G == 0)
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+ fprintf(stderr,"edge source %s target %s outside graph, ignored\n",(char*)tail,(char*)head);
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+ else {
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+ bind_edge(tail, head);
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+
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+ t = AGTAIL(E);
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+ tname = agnameof(t);
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+
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+ if (strcmp(tname, tail) == 0) {
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+ ud->edgeinverted = FALSE;
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+ } else if (strcmp(tname, head) == 0) {
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+ ud->edgeinverted = TRUE;
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+ }
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+
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+ pos = get_xml_attr("id", atts);
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+ if (pos > 0) {
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+ setEdgeAttr(E, GRAPHML_ID, (char *) atts[pos], ud);
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+ }
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+ }
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} else {
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/* must be some extension */
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fprintf(stderr,
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@@ -545,7 +536,7 @@
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char *ele_name = topString(ud->elements);
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if (ud->closedElementType == TAG_GRAPH) {
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Agnode_t *node = agnode(root, ele_name, 0);
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- agdelete(root, node);
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+ if (node) agdelete(root, node);
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}
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popString(&ud->elements);
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Current_class = TAG_GRAPH;
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