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/* $OpenBSD: mdoc_state.c,v 1.10 2018/08/17 20:31:52 schwarze Exp $ */
/*
* Copyright (c) 2014, 2015, 2017 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.
*/
#include <sys/types.h>
#include <assert.h>
#include <stdlib.h>
#include <string.h>
#include "mandoc.h"
#include "roff.h"
#include "mdoc.h"
#include "libmandoc.h"
#include "libmdoc.h"
#define STATE_ARGS struct roff_man *mdoc, struct roff_node *n
typedef void (*state_handler)(STATE_ARGS);
static void state_bd(STATE_ARGS);
static void state_bl(STATE_ARGS);
static void state_dl(STATE_ARGS);
static void state_sh(STATE_ARGS);
static void state_sm(STATE_ARGS);
static const state_handler state_handlers[MDOC_MAX - MDOC_Dd] = {
NULL, /* Dd */
NULL, /* Dt */
NULL, /* Os */
state_sh, /* Sh */
NULL, /* Ss */
NULL, /* Pp */
NULL, /* D1 */
state_dl, /* Dl */
state_bd, /* Bd */
NULL, /* Ed */
state_bl, /* Bl */
NULL, /* El */
NULL, /* It */
NULL, /* Ad */
NULL, /* An */
NULL, /* Ap */
NULL, /* Ar */
NULL, /* Cd */
NULL, /* Cm */
NULL, /* Dv */
NULL, /* Er */
NULL, /* Ev */
NULL, /* Ex */
NULL, /* Fa */
NULL, /* Fd */
NULL, /* Fl */
NULL, /* Fn */
NULL, /* Ft */
NULL, /* Ic */
NULL, /* In */
NULL, /* Li */
NULL, /* Nd */
NULL, /* Nm */
NULL, /* Op */
NULL, /* Ot */
NULL, /* Pa */
NULL, /* Rv */
NULL, /* St */
NULL, /* Va */
NULL, /* Vt */
NULL, /* Xr */
NULL, /* %A */
NULL, /* %B */
NULL, /* %D */
NULL, /* %I */
NULL, /* %J */
NULL, /* %N */
NULL, /* %O */
NULL, /* %P */
NULL, /* %R */
NULL, /* %T */
NULL, /* %V */
NULL, /* Ac */
NULL, /* Ao */
NULL, /* Aq */
NULL, /* At */
NULL, /* Bc */
NULL, /* Bf */
NULL, /* Bo */
NULL, /* Bq */
NULL, /* Bsx */
NULL, /* Bx */
NULL, /* Db */
NULL, /* Dc */
NULL, /* Do */
NULL, /* Dq */
NULL, /* Ec */
NULL, /* Ef */
NULL, /* Em */
NULL, /* Eo */
NULL, /* Fx */
NULL, /* Ms */
NULL, /* No */
NULL, /* Ns */
NULL, /* Nx */
NULL, /* Ox */
NULL, /* Pc */
NULL, /* Pf */
NULL, /* Po */
NULL, /* Pq */
NULL, /* Qc */
NULL, /* Ql */
NULL, /* Qo */
NULL, /* Qq */
NULL, /* Re */
NULL, /* Rs */
NULL, /* Sc */
NULL, /* So */
NULL, /* Sq */
state_sm, /* Sm */
NULL, /* Sx */
NULL, /* Sy */
NULL, /* Tn */
NULL, /* Ux */
NULL, /* Xc */
NULL, /* Xo */
NULL, /* Fo */
NULL, /* Fc */
NULL, /* Oo */
NULL, /* Oc */
NULL, /* Bk */
NULL, /* Ek */
NULL, /* Bt */
NULL, /* Hf */
NULL, /* Fr */
NULL, /* Ud */
NULL, /* Lb */
NULL, /* Lp */
NULL, /* Lk */
NULL, /* Mt */
NULL, /* Brq */
NULL, /* Bro */
NULL, /* Brc */
NULL, /* %C */
NULL, /* Es */
NULL, /* En */
NULL, /* Dx */
NULL, /* %Q */
NULL, /* %U */
NULL, /* Ta */
};
void
mdoc_state(struct roff_man *mdoc, struct roff_node *n)
{
state_handler handler;
if (n->tok == TOKEN_NONE || n->tok < ROFF_MAX)
return;
assert(n->tok >= MDOC_Dd && n->tok < MDOC_MAX);
if ((mdoc_macro(n->tok)->flags & MDOC_PROLOGUE) == 0)
mdoc->flags |= MDOC_PBODY;
handler = state_handlers[n->tok - MDOC_Dd];
if (*handler)
(*handler)(mdoc, n);
}
void
mdoc_state_reset(struct roff_man *mdoc)
{
roff_setreg(mdoc->roff, "nS", 0, '=');
mdoc->flags = 0;
}
static void
state_bd(STATE_ARGS)
{
enum mdocargt arg;
if (n->type != ROFFT_HEAD &&
(n->type != ROFFT_BODY || n->end != ENDBODY_NOT))
return;
if (n->parent->args == NULL)
return;
arg = n->parent->args->argv[0].arg;
if (arg != MDOC_Literal && arg != MDOC_Unfilled)
return;
state_dl(mdoc, n);
}
static void
state_bl(STATE_ARGS)
{
struct mdoc_arg *args;
size_t i;
if (n->type != ROFFT_HEAD || n->parent->args == NULL)
return;
args = n->parent->args;
for (i = 0; i < args->argc; i++) {
switch(args->argv[i].arg) {
case MDOC_Diag:
n->norm->Bl.type = LIST_diag;
return;
case MDOC_Column:
n->norm->Bl.type = LIST_column;
return;
default:
break;
}
}
}
static void
state_dl(STATE_ARGS)
{
switch (n->type) {
case ROFFT_HEAD:
mdoc->flags |= MDOC_LITERAL;
break;
case ROFFT_BODY:
mdoc->flags &= ~MDOC_LITERAL;
break;
default:
break;
}
}
static void
state_sh(STATE_ARGS)
{
struct roff_node *nch;
char *secname;
if (n->type != ROFFT_HEAD)
return;
if ( ! (n->flags & NODE_VALID)) {
secname = NULL;
deroff(&secname, n);
/*
* Set the section attribute for the BLOCK, HEAD,
* and HEAD children; the latter can only be TEXT
* nodes, so no recursion is needed. For other
* nodes, including the .Sh BODY, this is done
* when allocating the node data structures, but
* for .Sh BLOCK and HEAD, the section is still
* unknown at that time.
*/
n->sec = n->parent->sec = secname == NULL ?
SEC_CUSTOM : mdoc_a2sec(secname);
for (nch = n->child; nch != NULL; nch = nch->next)
nch->sec = n->sec;
free(secname);
}
if ((mdoc->lastsec = n->sec) == SEC_SYNOPSIS) {
roff_setreg(mdoc->roff, "nS", 1, '=');
mdoc->flags |= MDOC_SYNOPSIS;
} else {
roff_setreg(mdoc->roff, "nS", 0, '=');
mdoc->flags &= ~MDOC_SYNOPSIS;
}
}
static void
state_sm(STATE_ARGS)
{
if (n->child == NULL)
mdoc->flags ^= MDOC_SMOFF;
else if ( ! strcmp(n->child->string, "on"))
mdoc->flags &= ~MDOC_SMOFF;
else if ( ! strcmp(n->child->string, "off"))
mdoc->flags |= MDOC_SMOFF;
}
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