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/**
* @file
* @brief main rendering program for various layouts of graphs and output formats
*/
/*************************************************************************
* 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
*************************************************************************/
/*
* Written by Stephen North and Eleftherios Koutsofios.
*/
#include "config.h"
#include <cgraph/cgraph.h>
#include <gvc/gvc.h>
#include <gvc/gvio.h>
#include <util/exit.h>
#include <common/globals.h>
#include <stdbool.h>
#include <stdlib.h>
#include <time.h>
static GVC_t *Gvc;
static graph_t * G;
#ifndef _WIN32
#ifndef NO_FPERR
static void fperr(int s)
{
fprintf(stderr, "caught SIGFPE %d\n", s);
/* signal (s, SIG_DFL); raise (s); */
graphviz_exit(1);
}
#endif
#endif
int main(int argc, char **argv)
{
graph_t *prev = NULL;
int r, rc = 0;
Gvc = gvContextPlugins(lt_preloaded_symbols, DEMAND_LOADING);
GvExitOnUsage = 1;
gvParseArgs(Gvc, argc, argv);
#ifndef _WIN32
signal(SIGUSR1, gvToggle);
#ifndef NO_FPERR
signal(SIGFPE, fperr);
#endif
#endif
if ((G = gvPluginsGraph(Gvc))) {
gvLayoutJobs(Gvc, G); /* take layout engine from command line */
gvRenderJobs(Gvc, G);
}
else {
while ((G = gvNextInputGraph(Gvc))) {
if (prev) {
gvFreeLayout(Gvc, prev);
agclose(prev);
}
gvLayoutJobs(Gvc, G); /* take layout engine from command line */
gvRenderJobs(Gvc, G);
r = agreseterrors();
rc = MAX(rc,r);
prev = G;
}
}
gvFinalize(Gvc);
r = gvFreeContext(Gvc);
graphviz_exit(MAX(rc,r));
}
/**
* @dir .
* @brief main rendering program for various layouts of graphs and output formats
*/
/**
* @mainpage
*
* %Hierarchy:\n
* -# Applications
* - @ref cmd/dot – main rendering application for various layouts of graphs and output formats
* - @ref cmd – directory of applications
* - @ref dot.demo "dot.demo" – demo programs
* -# @ref plugin – Plugins of graph layout engines and output formats
* -# Core libraries
* -# @ref engines
* -# @ref common_render – rendering for layout engines
* -# @ref common_utils – low level utilities for layout engines
* -# @ref lib – miscellaneous libraries
* -# @ref cgraph – abstract graph C library
* -# @ref cgraph_app – uncoupled application specific functions
* -# @ref cgraph_core – highly cohesive core
* -# Low level utility libraries
* - @ref cgraph_utils – low level cgraph utilities
* - @ref lib/cdt – Container Data Types library
*/
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