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/// @file
/// @ingroup common_utils
/*************************************************************************
* Copyright (c) 2011 AT&T Intellectual Property
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-v10.html
*
* Contributors: Details at https://graphviz.org
*************************************************************************/
/* FIXME
* This is an ugly mess.
*
* Args should be made independent of layout engine and arg values
* should be stored in gvc or gvc->job. All globals should be eliminated.
*
* Needs to be fixed before layout engines can be plugins.
*/
#include <assert.h>
#include <common/render.h>
#include <fdpgen/tlayout.h>
#include <gvc/gvc.h>
#include <fdpgen/fdp.h>
#include <stdbool.h>
#include <util/gv_ctype.h>
/* Handle special neato arguments.
* Return number of unprocessed arguments; return < 0 on error.
*/
static int neato_extra_args(int argc, char** argv) {
char** p = argv+1;
int i;
char* arg;
int cnt = 1;
for (i = 1; i < argc; i++) {
arg = argv[i];
assert(arg != NULL);
if (arg[0] == '-') {
switch (arg[1]) {
case 'x' : Reduce = true; break;
case 'n':
if (arg[2]) {
Nop = atoi(arg+2);
if (Nop <= 0) {
agerrorf("Invalid parameter \"%s\" for -n flag\n", arg+2);
dotneato_usage(argv[0], 1);
return -1;
}
}
else Nop = 1;
break;
default :
cnt++;
if (*p != arg) *p = arg;
p++;
break;
}
}
else {
cnt++;
if (*p != arg) *p = arg;
p++;
}
}
*p = 0;
return cnt;
}
/* Handle special config arguments.
* Return number of unprocessed arguments; return < 0 on error.
*/
static int
config_extra_args(GVC_t *gvc, int argc, char** argv)
{
char** p = argv+1;
int i;
char* arg;
int cnt = 1;
for (i = 1; i < argc; i++) {
arg = argv[i];
assert(arg != NULL);
if (arg[0] == '-') {
switch (arg[1]) {
case 'v':
gvc->common.verbose = 1;
if (gv_isdigit(arg[2]))
gvc->common.verbose = atoi(&arg[2]);
break;
case 'O' :
gvc->common.auto_outfile_names = true;
break;
case 'c' :
gvc->common.config = true;
break;
default :
cnt++;
if (*p != arg) *p = arg;
p++;
break;
}
}
else {
cnt++;
if (*p != arg) *p = arg;
p++;
}
}
*p = 0;
return cnt;
}
/* If arg is an double, value is stored in v
* and functions returns 0; otherwise, returns 1.
*/
static int
setDouble (double* v, char* arg)
{
char* p;
double d;
d = strtod(arg,&p);
if (p == arg) {
agerrorf("bad value in flag -L%s - ignored\n", arg-1);
return 1;
}
*v = d;
return 0;
}
/* If arg is an integer, value is stored in v
* and functions returns 0; otherwise, returns 1.
*/
static int
setInt (int* v, char* arg)
{
char* p;
int i;
i = (int)strtol(arg,&p,10);
if (p == arg) {
agerrorf("bad value in flag -L%s - ignored\n", arg-1);
return 1;
}
*v = i;
return 0;
}
/// Actions for fdp specific flags
static int
setFDPAttr (char* arg)
{
switch (*arg++) {
case 'g' :
fdp_parms->useGrid = 0;
break;
case 'O' :
fdp_parms->useNew = 0;
break;
case 'n' :
if (setInt (&fdp_parms->numIters, arg)) return 1;
break;
case 'U' :
if (setInt (&fdp_parms->unscaled, arg)) return 1;
break;
case 'C' :
if (setDouble (&fdp_parms->C, arg)) return 1;
break;
case 'T' :
if (*arg == '*') {
if (setDouble (&fdp_parms->Tfact, arg+1)) return 1;
}
else {
if (setDouble (&fdp_parms->T0, arg)) return 1;
}
break;
default :
agwarningf("unknown flag -L%s - ignored\n", arg-1);
break;
}
return 0;
}
/* Handle fdp specific arguments.
* These have the form -L<name>=<value>.
* Return number of unprocessed arguments; return < 0 on error.
*/
static int fdp_extra_args(int argc, char** argv) {
char** p = argv+1;
int i;
char* arg;
int cnt = 1;
for (i = 1; i < argc; i++) {
arg = argv[i];
assert(arg != NULL);
if (arg[0] == '-' && arg[1] == 'L') {
if (setFDPAttr (arg+2)) {
dotneato_usage(argv[0], 1);
return -1;
}
}
else {
cnt++;
if (*p != arg) *p = arg;
p++;
}
}
*p = 0;
return cnt;
}
/* Return 0 on success.
* Return x if calling function should call exit(x-1).
*/
int gvParseArgs(GVC_t *gvc, int argc, char** argv)
{
int rv;
if ((argc = neato_extra_args(argc, argv)) < 0)
return (1-argc);
if ((argc = fdp_extra_args(argc, argv)) < 0)
return (1-argc);
if ((argc = config_extra_args(gvc, argc, argv)) < 0)
return (1-argc);
if ((rv = dotneato_args_initialize(gvc, argc, argv)))
return rv;
if (Verbose)
gvplugin_write_status(gvc);
return 0;
}
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