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lib: Add tracing capabilities to command matcher

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Compile with -DTRACE_MATCHER to enable matcher
debugging to stdout.

Signed-off-by: Quentin Young <qlyoung@cumulusnetworks.com>
This commit is contained in:
Quentin Young 2016-10-05 23:56:17 +00:00
parent 3871154b72
commit b4f56274fa
1 changed files with 43 additions and 0 deletions
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43
lib/command_match.c
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@ -116,6 +116,13 @@ command_match (struct graph *cmdgraph,
assert (*el); assert (*el);
} }
#ifdef TRACE_MATCHER
if (!*el)
fprintf (stdout, "No match\n");
else
fprintf (stdout, "Matched command\n->string %s\n->desc %s\n", (*el)->string, (*el)->doc);
#endif
// free the leader token we alloc'd // free the leader token we alloc'd
XFREE (MTYPE_TMP, vector_slot (vvline, 0)); XFREE (MTYPE_TMP, vector_slot (vvline, 0));
// free vector // free vector
@ -184,6 +191,26 @@ command_match_r (struct graph_node *start, vector vline, unsigned int n)
// get the current operating input token // get the current operating input token
char *input_token = vector_slot (vline, n); char *input_token = vector_slot (vline, n);
#ifdef TRACE_MATCHER
fprintf (stdout, "\"%s\" matches \"%s\" (%d) ? ", input_token, token->text, token->type);
switch (match_token (token, input_token))
{
case trivial_match:
fprintf (stdout, "trivial_match ");
break;
case no_match:
fprintf (stdout, "no_match ");
break;
case partly_match:
fprintf (stdout, "partly_match ");
break;
case exact_match:
fprintf (stdout, "exact_match ");
break;
}
fprintf (stdout, "(minimum: %d)\n", minmatch);
#endif
// if we don't match this node, die // if we don't match this node, die
if (match_token (token, input_token) < minmatch) if (match_token (token, input_token) < minmatch)
return NULL; return NULL;
@ -301,19 +328,35 @@ command_complete (struct graph *graph,
for (ALL_LIST_ELEMENTS_RO (current,node,gn)) for (ALL_LIST_ELEMENTS_RO (current,node,gn))
{ {
struct cmd_token *token = gn->data; struct cmd_token *token = gn->data;
#ifdef TRACE_MATCHER
fprintf (stdout, "\"%s\" matches \"%s\" (%d) ? ", input_token, token->text, token->type);
#endif
switch (match_token (token, input_token)) switch (match_token (token, input_token))
{ {
case trivial_match: case trivial_match:
#ifdef TRACE_MATCHER
fprintf (stdout, "trivial_match\n");
#endif
case partly_match: case partly_match:
#ifdef TRACE_MATCHER
fprintf (stdout, "partly_match\n");
#endif
if (idx == vector_active (vline) - 1) if (idx == vector_active (vline) - 1)
{ {
listnode_add (next, gn); listnode_add (next, gn);
break; break;
} }
case exact_match: case exact_match:
#ifdef TRACE_MATCHER
fprintf (stdout, "exact_match\n");
#endif
add_nexthops (next, gn); add_nexthops (next, gn);
break; break;
default: default:
#ifdef TRACE_MATCHER
fprintf (stdout, "no_match\n");
#endif
break; break;
} }
} }