main.c revision 698f87a48e2e945bfe5493ce168e0d0ae1cedd5c
/* $Id: main.c,v 1.167 2012/11/19 17:22:26 schwarze Exp $ */
/*
* Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
* Copyright (c) 2010, 2011, 2012 Ingo Schwarze <schwarze@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <assert.h>
#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "mandoc.h"
#include "main.h"
#include "mdoc.h"
#include "man.h"
#if !defined(__GNUC__) || (__GNUC__ < 2)
# if !defined(lint)
# define __attribute__(x)
# endif
#endif /* !defined(__GNUC__) || (__GNUC__ < 2) */
typedef void (*out_mdoc)(void *, const struct mdoc *);
typedef void (*out_man)(void *, const struct man *);
typedef void (*out_free)(void *);
enum outt {
OUTT_ASCII = 0, /* -Tascii */
OUTT_LOCALE, /* -Tlocale */
OUTT_UTF8, /* -Tutf8 */
OUTT_TREE, /* -Ttree */
OUTT_MAN, /* -Tman */
OUTT_HTML, /* -Thtml */
OUTT_XHTML, /* -Txhtml */
OUTT_LINT, /* -Tlint */
OUTT_PS, /* -Tps */
OUTT_PDF /* -Tpdf */
};
struct curparse {
struct mparse *mp;
enum mandoclevel wlevel; /* ignore messages below this */
int wstop; /* stop after a file with a warning */
enum outt outtype; /* which output to use */
out_mdoc outmdoc; /* mdoc output ptr */
out_man outman; /* man output ptr */
out_free outfree; /* free output ptr */
void *outdata; /* data for output */
char outopts[BUFSIZ]; /* buf of output opts */
};
static int moptions(enum mparset *, char *);
static void mmsg(enum mandocerr, enum mandoclevel,
const char *, int, int, const char *);
static void parse(struct curparse *, int,
const char *, enum mandoclevel *);
static int toptions(struct curparse *, char *);
static void usage(void) __attribute__((noreturn));
static void version(void) __attribute__((noreturn));
static int woptions(struct curparse *, char *);
static const char *progname;
int
main(int argc, char *argv[])
{
int c;
struct curparse curp;
enum mparset type;
enum mandoclevel rc;
char *defos;
progname = strrchr(argv[0], '/');
if (progname == NULL)
progname = argv[0];
else
++progname;
memset(&curp, 0, sizeof(struct curparse));
type = MPARSE_AUTO;
curp.outtype = OUTT_ASCII;
curp.wlevel = MANDOCLEVEL_FATAL;
defos = NULL;
/* LINTED */
while (-1 != (c = getopt(argc, argv, "I:m:O:T:VW:")))
switch (c) {
case ('I'):
if (strncmp(optarg, "os=", 3)) {
fprintf(stderr, "-I%s: Bad argument\n",
optarg);
return((int)MANDOCLEVEL_BADARG);
}
if (defos) {
fprintf(stderr, "-I%s: Duplicate argument\n",
optarg);
return((int)MANDOCLEVEL_BADARG);
}
defos = mandoc_strdup(optarg + 3);
break;
case ('m'):
if ( ! moptions(&type, optarg))
return((int)MANDOCLEVEL_BADARG);
break;
case ('O'):
(void)strlcat(curp.outopts, optarg, BUFSIZ);
(void)strlcat(curp.outopts, ",", BUFSIZ);
break;
case ('T'):
if ( ! toptions(&curp, optarg))
return((int)MANDOCLEVEL_BADARG);
break;
case ('W'):
if ( ! woptions(&curp, optarg))
return((int)MANDOCLEVEL_BADARG);
break;
case ('V'):
version();
/* NOTREACHED */
default:
usage();
/* NOTREACHED */
}
curp.mp = mparse_alloc(type, curp.wlevel, mmsg, &curp, defos);
/*
* Conditionally start up the lookaside buffer before parsing.
*/
if (OUTT_MAN == curp.outtype)
mparse_keep(curp.mp);
argc -= optind;
argv += optind;
rc = MANDOCLEVEL_OK;
if (NULL == *argv)
parse(&curp, STDIN_FILENO, "<stdin>", &rc);
while (*argv) {
parse(&curp, -1, *argv, &rc);
if (MANDOCLEVEL_OK != rc && curp.wstop)
break;
++argv;
}
if (curp.outfree)
(*curp.outfree)(curp.outdata);
if (curp.mp)
mparse_free(curp.mp);
free(defos);
return((int)rc);
}
static void
version(void)
{
printf("%s %s\n", progname, VERSION);
exit((int)MANDOCLEVEL_OK);
}
static void
usage(void)
{
fprintf(stderr, "usage: %s "
"[-V] "
"[-Ios=name] "
"[-mformat] "
"[-Ooption] "
"[-Toutput] "
"[-Wlevel]\n"
"\t [file ...]\n",
progname);
exit((int)MANDOCLEVEL_BADARG);
}
static void
parse(struct curparse *curp, int fd,
const char *file, enum mandoclevel *level)
{
enum mandoclevel rc;
struct mdoc *mdoc;
struct man *man;
/* Begin by parsing the file itself. */
assert(file);
assert(fd >= -1);
rc = mparse_readfd(curp->mp, fd, file);
/* Stop immediately if the parse has failed. */
if (MANDOCLEVEL_FATAL <= rc)
goto cleanup;
/*
* With -Wstop and warnings or errors of at least the requested
* level, do not produce output.
*/
if (MANDOCLEVEL_OK != rc && curp->wstop)
goto cleanup;
/* If unset, allocate output dev now (if applicable). */
if ( ! (curp->outman && curp->outmdoc)) {
switch (curp->outtype) {
case (OUTT_XHTML):
curp->outdata = xhtml_alloc(curp->outopts);
curp->outfree = html_free;
break;
case (OUTT_HTML):
curp->outdata = html_alloc(curp->outopts);
curp->outfree = html_free;
break;
case (OUTT_UTF8):
curp->outdata = utf8_alloc(curp->outopts);
curp->outfree = ascii_free;
break;
case (OUTT_LOCALE):
curp->outdata = locale_alloc(curp->outopts);
curp->outfree = ascii_free;
break;
case (OUTT_ASCII):
curp->outdata = ascii_alloc(curp->outopts);
curp->outfree = ascii_free;
break;
case (OUTT_PDF):
curp->outdata = pdf_alloc(curp->outopts);
curp->outfree = pspdf_free;
break;
case (OUTT_PS):
curp->outdata = ps_alloc(curp->outopts);
curp->outfree = pspdf_free;
break;
default:
break;
}
switch (curp->outtype) {
case (OUTT_HTML):
/* FALLTHROUGH */
case (OUTT_XHTML):
curp->outman = html_man;
curp->outmdoc = html_mdoc;
break;
case (OUTT_TREE):
curp->outman = tree_man;
curp->outmdoc = tree_mdoc;
break;
case (OUTT_MAN):
curp->outmdoc = man_mdoc;
curp->outman = man_man;
break;
case (OUTT_PDF):
/* FALLTHROUGH */
case (OUTT_ASCII):
/* FALLTHROUGH */
case (OUTT_UTF8):
/* FALLTHROUGH */
case (OUTT_LOCALE):
/* FALLTHROUGH */
case (OUTT_PS):
curp->outman = terminal_man;
curp->outmdoc = terminal_mdoc;
break;
default:
break;
}
}
mparse_result(curp->mp, &mdoc, &man);
/* Execute the out device, if it exists. */
if (man && curp->outman)
(*curp->outman)(curp->outdata, man);
if (mdoc && curp->outmdoc)
(*curp->outmdoc)(curp->outdata, mdoc);
cleanup:
mparse_reset(curp->mp);
if (*level < rc)
*level = rc;
}
static int
moptions(enum mparset *tflags, char *arg)
{
if (0 == strcmp(arg, "doc"))
*tflags = MPARSE_MDOC;
else if (0 == strcmp(arg, "andoc"))
*tflags = MPARSE_AUTO;
else if (0 == strcmp(arg, "an"))
*tflags = MPARSE_MAN;
else {
fprintf(stderr, "%s: Bad argument\n", arg);
return(0);
}
return(1);
}
static int
toptions(struct curparse *curp, char *arg)
{
if (0 == strcmp(arg, "ascii"))
curp->outtype = OUTT_ASCII;
else if (0 == strcmp(arg, "lint")) {
curp->outtype = OUTT_LINT;
curp->wlevel = MANDOCLEVEL_WARNING;
} else if (0 == strcmp(arg, "tree"))
curp->outtype = OUTT_TREE;
else if (0 == strcmp(arg, "man"))
curp->outtype = OUTT_MAN;
else if (0 == strcmp(arg, "html"))
curp->outtype = OUTT_HTML;
else if (0 == strcmp(arg, "utf8"))
curp->outtype = OUTT_UTF8;
else if (0 == strcmp(arg, "locale"))
curp->outtype = OUTT_LOCALE;
else if (0 == strcmp(arg, "xhtml"))
curp->outtype = OUTT_XHTML;
else if (0 == strcmp(arg, "ps"))
curp->outtype = OUTT_PS;
else if (0 == strcmp(arg, "pdf"))
curp->outtype = OUTT_PDF;
else {
fprintf(stderr, "%s: Bad argument\n", arg);
return(0);
}
return(1);
}
static int
woptions(struct curparse *curp, char *arg)
{
char *v, *o;
const char *toks[6];
toks[0] = "stop";
toks[1] = "all";
toks[2] = "warning";
toks[3] = "error";
toks[4] = "fatal";
toks[5] = NULL;
while (*arg) {
o = arg;
switch (getsubopt(&arg, UNCONST(toks), &v)) {
case (0):
curp->wstop = 1;
break;
case (1):
/* FALLTHROUGH */
case (2):
curp->wlevel = MANDOCLEVEL_WARNING;
break;
case (3):
curp->wlevel = MANDOCLEVEL_ERROR;
break;
case (4):
curp->wlevel = MANDOCLEVEL_FATAL;
break;
default:
fprintf(stderr, "-W%s: Bad argument\n", o);
return(0);
}
}
return(1);
}
static void
mmsg(enum mandocerr t, enum mandoclevel lvl,
const char *file, int line, int col, const char *msg)
{
fprintf(stderr, "%s:%d:%d: %s: %s",
file, line, col + 1,
mparse_strlevel(lvl),
mparse_strerror(t));
if (msg)
fprintf(stderr, ": %s", msg);
fputc('\n', stderr);
}