/* Id: mdoc_man.c,v 1.137 2021/07/04 15:38:26 schwarze Exp */
/*
* Copyright (c) 2011-2021 Ingo Schwarze <
[email protected]>
*
* 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 "config.h"
#include <sys/types.h>
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "mandoc_aux.h"
#include "mandoc.h"
#include "roff.h"
#include "mdoc.h"
#include "man.h"
#include "out.h"
#include "main.h"
#define DECL_ARGS const struct roff_meta *meta, struct roff_node *n
typedef int (*int_fp)(DECL_ARGS);
typedef void (*void_fp)(DECL_ARGS);
struct mdoc_man_act {
int_fp cond; /* DON'T run actions */
int_fp pre; /* pre-node action */
void_fp post; /* post-node action */
const char *prefix; /* pre-node string constant */
const char *suffix; /* post-node string constant */
};
static int cond_body(DECL_ARGS);
static int cond_head(DECL_ARGS);
static void font_push(char);
static void font_pop(void);
static int man_strlen(const char *);
static void mid_it(void);
static void post__t(DECL_ARGS);
static void post_aq(DECL_ARGS);
static void post_bd(DECL_ARGS);
static void post_bf(DECL_ARGS);
static void post_bk(DECL_ARGS);
static void post_bl(DECL_ARGS);
static void post_dl(DECL_ARGS);
static void post_en(DECL_ARGS);
static void post_enc(DECL_ARGS);
static void post_eo(DECL_ARGS);
static void post_fa(DECL_ARGS);
static void post_fd(DECL_ARGS);
static void post_fl(DECL_ARGS);
static void post_fn(DECL_ARGS);
static void post_fo(DECL_ARGS);
static void post_font(DECL_ARGS);
static void post_in(DECL_ARGS);
static void post_it(DECL_ARGS);
static void post_lb(DECL_ARGS);
static void post_nm(DECL_ARGS);
static void post_percent(DECL_ARGS);
static void post_pf(DECL_ARGS);
static void post_sect(DECL_ARGS);
static void post_vt(DECL_ARGS);
static int pre__t(DECL_ARGS);
static int pre_abort(DECL_ARGS);
static int pre_an(DECL_ARGS);
static int pre_ap(DECL_ARGS);
static int pre_aq(DECL_ARGS);
static int pre_bd(DECL_ARGS);
static int pre_bf(DECL_ARGS);
static int pre_bk(DECL_ARGS);
static int pre_bl(DECL_ARGS);
static void pre_br(DECL_ARGS);
static int pre_dl(DECL_ARGS);
static int pre_en(DECL_ARGS);
static int pre_enc(DECL_ARGS);
static int pre_em(DECL_ARGS);
static int pre_skip(DECL_ARGS);
static int pre_eo(DECL_ARGS);
static int pre_ex(DECL_ARGS);
static int pre_fa(DECL_ARGS);
static int pre_fd(DECL_ARGS);
static int pre_fl(DECL_ARGS);
static int pre_fn(DECL_ARGS);
static int pre_fo(DECL_ARGS);
static void pre_ft(DECL_ARGS);
static int pre_Ft(DECL_ARGS);
static int pre_in(DECL_ARGS);
static int pre_it(DECL_ARGS);
static int pre_lk(DECL_ARGS);
static int pre_li(DECL_ARGS);
static int pre_nm(DECL_ARGS);
static int pre_no(DECL_ARGS);
static void pre_noarg(DECL_ARGS);
static int pre_ns(DECL_ARGS);
static void pre_onearg(DECL_ARGS);
static int pre_pp(DECL_ARGS);
static int pre_rs(DECL_ARGS);
static int pre_sm(DECL_ARGS);
static void pre_sp(DECL_ARGS);
static int pre_sect(DECL_ARGS);
static int pre_sy(DECL_ARGS);
static void pre_syn(struct roff_node *);
static void pre_ta(DECL_ARGS);
static int pre_vt(DECL_ARGS);
static int pre_xr(DECL_ARGS);
static void print_word(const char *);
static void print_line(const char *, int);
static void print_block(const char *, int);
static void print_offs(const char *, int);
static void print_width(const struct mdoc_bl *,
const struct roff_node *);
static void print_count(int *);
static void print_node(DECL_ARGS);
static const void_fp roff_man_acts[ROFF_MAX] = {
pre_br, /* br */
pre_onearg, /* ce */
pre_noarg, /* fi */
pre_ft, /* ft */
pre_onearg, /* ll */
pre_onearg, /* mc */
pre_noarg, /* nf */
pre_onearg, /* po */
pre_onearg, /* rj */
pre_sp, /* sp */
pre_ta, /* ta */
pre_onearg, /* ti */
};
static const struct mdoc_man_act mdoc_man_acts[MDOC_MAX - MDOC_Dd] = {
{ NULL, NULL, NULL, NULL, NULL }, /* Dd */
{ NULL, NULL, NULL, NULL, NULL }, /* Dt */
{ NULL, NULL, NULL, NULL, NULL }, /* Os */
{ NULL, pre_sect, post_sect, ".SH", NULL }, /* Sh */
{ NULL, pre_sect, post_sect, ".SS", NULL }, /* Ss */
{ NULL, pre_pp, NULL, NULL, NULL }, /* Pp */
{ cond_body, pre_dl, post_dl, NULL, NULL }, /* D1 */
{ cond_body, pre_dl, post_dl, NULL, NULL }, /* Dl */
{ cond_body, pre_bd, post_bd, NULL, NULL }, /* Bd */
{ NULL, NULL, NULL, NULL, NULL }, /* Ed */
{ cond_body, pre_bl, post_bl, NULL, NULL }, /* Bl */
{ NULL, NULL, NULL, NULL, NULL }, /* El */
{ NULL, pre_it, post_it, NULL, NULL }, /* It */
{ NULL, pre_em, post_font, NULL, NULL }, /* Ad */
{ NULL, pre_an, NULL, NULL, NULL }, /* An */
{ NULL, pre_ap, NULL, NULL, NULL }, /* Ap */
{ NULL, pre_em, post_font, NULL, NULL }, /* Ar */
{ NULL, pre_sy, post_font, NULL, NULL }, /* Cd */
{ NULL, pre_sy, post_font, NULL, NULL }, /* Cm */
{ NULL, pre_li, post_font, NULL, NULL }, /* Dv */
{ NULL, pre_li, post_font, NULL, NULL }, /* Er */
{ NULL, pre_li, post_font, NULL, NULL }, /* Ev */
{ NULL, pre_ex, NULL, NULL, NULL }, /* Ex */
{ NULL, pre_fa, post_fa, NULL, NULL }, /* Fa */
{ NULL, pre_fd, post_fd, NULL, NULL }, /* Fd */
{ NULL, pre_fl, post_fl, NULL, NULL }, /* Fl */
{ NULL, pre_fn, post_fn, NULL, NULL }, /* Fn */
{ NULL, pre_Ft, post_font, NULL, NULL }, /* Ft */
{ NULL, pre_sy, post_font, NULL, NULL }, /* Ic */
{ NULL, pre_in, post_in, NULL, NULL }, /* In */
{ NULL, pre_li, post_font, NULL, NULL }, /* Li */
{ cond_head, pre_enc, NULL, "\\- ", NULL }, /* Nd */
{ NULL, pre_nm, post_nm, NULL, NULL }, /* Nm */
{ cond_body, pre_enc, post_enc, "[", "]" }, /* Op */
{ NULL, pre_abort, NULL, NULL, NULL }, /* Ot */
{ NULL, pre_em, post_font, NULL, NULL }, /* Pa */
{ NULL, pre_ex, NULL, NULL, NULL }, /* Rv */
{ NULL, NULL, NULL, NULL, NULL }, /* St */
{ NULL, pre_em, post_font, NULL, NULL }, /* Va */
{ NULL, pre_vt, post_vt, NULL, NULL }, /* Vt */
{ NULL, pre_xr, NULL, NULL, NULL }, /* Xr */
{ NULL, NULL, post_percent, NULL, NULL }, /* %A */
{ NULL, pre_em, post_percent, NULL, NULL }, /* %B */
{ NULL, NULL, post_percent, NULL, NULL }, /* %D */
{ NULL, pre_em, post_percent, NULL, NULL }, /* %I */
{ NULL, pre_em, post_percent, NULL, NULL }, /* %J */
{ NULL, NULL, post_percent, NULL, NULL }, /* %N */
{ NULL, NULL, post_percent, NULL, NULL }, /* %O */
{ NULL, NULL, post_percent, NULL, NULL }, /* %P */
{ NULL, NULL, post_percent, NULL, NULL }, /* %R */
{ NULL, pre__t, post__t, NULL, NULL }, /* %T */
{ NULL, NULL, post_percent, NULL, NULL }, /* %V */
{ NULL, NULL, NULL, NULL, NULL }, /* Ac */
{ cond_body, pre_aq, post_aq, NULL, NULL }, /* Ao */
{ cond_body, pre_aq, post_aq, NULL, NULL }, /* Aq */
{ NULL, NULL, NULL, NULL, NULL }, /* At */
{ NULL, NULL, NULL, NULL, NULL }, /* Bc */
{ NULL, pre_bf, post_bf, NULL, NULL }, /* Bf */
{ cond_body, pre_enc, post_enc, "[", "]" }, /* Bo */
{ cond_body, pre_enc, post_enc, "[", "]" }, /* Bq */
{ NULL, pre_bk, post_bk, NULL, NULL }, /* Bsx */
{ NULL, pre_bk, post_bk, NULL, NULL }, /* Bx */
{ NULL, pre_skip, NULL, NULL, NULL }, /* Db */
{ NULL, NULL, NULL, NULL, NULL }, /* Dc */
{ cond_body, pre_enc, post_enc, "\\(lq", "\\(rq" }, /* Do */
{ cond_body, pre_enc, post_enc, "\\(lq", "\\(rq" }, /* Dq */
{ NULL, NULL, NULL, NULL, NULL }, /* Ec */
{ NULL, NULL, NULL, NULL, NULL }, /* Ef */
{ NULL, pre_em, post_font, NULL, NULL }, /* Em */
{ cond_body, pre_eo, post_eo, NULL, NULL }, /* Eo */
{ NULL, pre_bk, post_bk, NULL, NULL }, /* Fx */
{ NULL, pre_sy, post_font, NULL, NULL }, /* Ms */
{ NULL, pre_no, NULL, NULL, NULL }, /* No */
{ NULL, pre_ns, NULL, NULL, NULL }, /* Ns */
{ NULL, pre_bk, post_bk, NULL, NULL }, /* Nx */
{ NULL, pre_bk, post_bk, NULL, NULL }, /* Ox */
{ NULL, NULL, NULL, NULL, NULL }, /* Pc */
{ NULL, NULL, post_pf, NULL, NULL }, /* Pf */
{ cond_body, pre_enc, post_enc, "(", ")" }, /* Po */
{ cond_body, pre_enc, post_enc, "(", ")" }, /* Pq */
{ NULL, NULL, NULL, NULL, NULL }, /* Qc */
{ cond_body, pre_enc, post_enc, "\\(oq", "\\(cq" }, /* Ql */
{ cond_body, pre_enc, post_enc, "\"", "\"" }, /* Qo */
{ cond_body, pre_enc, post_enc, "\"", "\"" }, /* Qq */
{ NULL, NULL, NULL, NULL, NULL }, /* Re */
{ cond_body, pre_rs, NULL, NULL, NULL }, /* Rs */
{ NULL, NULL, NULL, NULL, NULL }, /* Sc */
{ cond_body, pre_enc, post_enc, "\\(oq", "\\(cq" }, /* So */
{ cond_body, pre_enc, post_enc, "\\(oq", "\\(cq" }, /* Sq */
{ NULL, pre_sm, NULL, NULL, NULL }, /* Sm */
{ NULL, pre_em, post_font, NULL, NULL }, /* Sx */
{ NULL, pre_sy, post_font, NULL, NULL }, /* Sy */
{ NULL, pre_li, post_font, NULL, NULL }, /* Tn */
{ NULL, NULL, NULL, NULL, NULL }, /* Ux */
{ NULL, NULL, NULL, NULL, NULL }, /* Xc */
{ NULL, NULL, NULL, NULL, NULL }, /* Xo */
{ NULL, pre_fo, post_fo, NULL, NULL }, /* Fo */
{ NULL, NULL, NULL, NULL, NULL }, /* Fc */
{ cond_body, pre_enc, post_enc, "[", "]" }, /* Oo */
{ NULL, NULL, NULL, NULL, NULL }, /* Oc */
{ NULL, pre_bk, post_bk, NULL, NULL }, /* Bk */
{ NULL, NULL, NULL, NULL, NULL }, /* Ek */
{ NULL, NULL, NULL, NULL, NULL }, /* Bt */
{ NULL, NULL, NULL, NULL, NULL }, /* Hf */
{ NULL, pre_em, post_font, NULL, NULL }, /* Fr */
{ NULL, NULL, NULL, NULL, NULL }, /* Ud */
{ NULL, NULL, post_lb, NULL, NULL }, /* Lb */
{ NULL, pre_abort, NULL, NULL, NULL }, /* Lp */
{ NULL, pre_lk, NULL, NULL, NULL }, /* Lk */
{ NULL, pre_em, post_font, NULL, NULL }, /* Mt */
{ cond_body, pre_enc, post_enc, "{", "}" }, /* Brq */
{ cond_body, pre_enc, post_enc, "{", "}" }, /* Bro */
{ NULL, NULL, NULL, NULL, NULL }, /* Brc */
{ NULL, NULL, post_percent, NULL, NULL }, /* %C */
{ NULL, pre_skip, NULL, NULL, NULL }, /* Es */
{ cond_body, pre_en, post_en, NULL, NULL }, /* En */
{ NULL, pre_bk, post_bk, NULL, NULL }, /* Dx */
{ NULL, NULL, post_percent, NULL, NULL }, /* %Q */
{ NULL, NULL, post_percent, NULL, NULL }, /* %U */
{ NULL, NULL, NULL, NULL, NULL }, /* Ta */
{ NULL, pre_skip, NULL, NULL, NULL }, /* Tg */
};
static const struct mdoc_man_act *mdoc_man_act(enum roff_tok);
static int outflags;
#define MMAN_spc (1 << 0) /* blank character before next word */
#define MMAN_spc_force (1 << 1) /* even before trailing punctuation */
#define MMAN_nl (1 << 2) /* break man(7) code line */
#define MMAN_br (1 << 3) /* break output line */
#define MMAN_sp (1 << 4) /* insert a blank output line */
#define MMAN_PP (1 << 5) /* reset indentation etc. */
#define MMAN_Sm (1 << 6) /* horizontal spacing mode */
#define MMAN_Bk (1 << 7) /* word keep mode */
#define MMAN_Bk_susp (1 << 8) /* suspend this (after a macro) */
#define MMAN_An_split (1 << 9) /* author mode is "split" */
#define MMAN_An_nosplit (1 << 10) /* author mode is "nosplit" */
#define MMAN_PD (1 << 11) /* inter-paragraph spacing disabled */
#define MMAN_nbrword (1 << 12) /* do not break the next word */
#define BL_STACK_MAX 32
static int Bl_stack[BL_STACK_MAX]; /* offsets [chars] */
static int Bl_stack_post[BL_STACK_MAX]; /* add final .RE */
static int Bl_stack_len; /* number of nested Bl blocks */
static int TPremain; /* characters before tag is full */
static struct {
char *head;
char *tail;
size_t size;
} fontqueue;
static const struct mdoc_man_act *
mdoc_man_act(enum roff_tok tok)
{
assert(tok >= MDOC_Dd && tok <= MDOC_MAX);
return mdoc_man_acts + (tok - MDOC_Dd);
}
static int
man_strlen(const char *cp)
{
size_t rsz;
int skip, sz;
sz = 0;
skip = 0;
for (;;) {
rsz = strcspn(cp, "\\");
if (rsz) {
cp += rsz;
if (skip) {
skip = 0;
rsz--;
}
sz += rsz;
}
if ('\0' == *cp)
break;
cp++;
switch (mandoc_escape(&cp, NULL, NULL)) {
case ESCAPE_ERROR:
return sz;
case ESCAPE_UNICODE:
case ESCAPE_NUMBERED:
case ESCAPE_SPECIAL:
case ESCAPE_UNDEF:
case ESCAPE_OVERSTRIKE:
if (skip)
skip = 0;
else
sz++;
break;
case ESCAPE_SKIPCHAR:
skip = 1;
break;
default:
break;
}
}
return sz;
}
static void
font_push(char newfont)
{
if (fontqueue.head + fontqueue.size <= ++fontqueue.tail) {
fontqueue.size += 8;
fontqueue.head = mandoc_realloc(fontqueue.head,
fontqueue.size);
}
*fontqueue.tail = newfont;
print_word("");
printf("\\f");
putchar(newfont);
outflags &= ~MMAN_spc;
}
static void
font_pop(void)
{
if (fontqueue.tail > fontqueue.head)
fontqueue.tail--;
outflags &= ~MMAN_spc;
print_word("");
printf("\\f");
putchar(*fontqueue.tail);
}
static void
print_word(const char *s)
{
if ((MMAN_PP | MMAN_sp | MMAN_br | MMAN_nl) & outflags) {
/*
* If we need a newline, print it now and start afresh.
*/
if (MMAN_PP & outflags) {
if (MMAN_sp & outflags) {
if (MMAN_PD & outflags) {
printf("\n.PD");
outflags &= ~MMAN_PD;
}
} else if ( ! (MMAN_PD & outflags)) {
printf("\n.PD 0");
outflags |= MMAN_PD;
}
printf("\n.PP\n");
} else if (MMAN_sp & outflags)
printf("\n.sp\n");
else if (MMAN_br & outflags)
printf("\n.br\n");
else if (MMAN_nl & outflags)
putchar('\n');
outflags &= ~(MMAN_PP|MMAN_sp|MMAN_br|MMAN_nl|MMAN_spc);
if (1 == TPremain)
printf(".br\n");
TPremain = 0;
} else if (MMAN_spc & outflags) {
/*
* If we need a space, only print it if
* (1) it is forced by `No' or
* (2) what follows is not terminating punctuation or
* (3) what follows is longer than one character.
*/
if (MMAN_spc_force & outflags || '\0' == s[0] ||
NULL == strchr(".,:;)]?!", s[0]) || '\0' != s[1]) {
if (MMAN_Bk & outflags &&
! (MMAN_Bk_susp & outflags))
putchar('\\');
putchar(' ');
if (TPremain)
TPremain--;
}
}
/*
* Reassign needing space if we're not following opening
* punctuation.
*/
if (MMAN_Sm & outflags && ('\0' == s[0] ||
(('(' != s[0] && '[' != s[0]) || '\0' != s[1])))
outflags |= MMAN_spc;
else
outflags &= ~MMAN_spc;
outflags &= ~(MMAN_spc_force | MMAN_Bk_susp);
for ( ; *s; s++) {
switch (*s) {
case ASCII_NBRSP:
printf("\\ ");
break;
case ASCII_HYPH:
putchar('-');
break;
case ASCII_BREAK:
printf("\\:");
break;
case ' ':
if (MMAN_nbrword & outflags) {
printf("\\ ");
break;
}
/* FALLTHROUGH */
default:
putchar((unsigned char)*s);
break;
}
if (TPremain)
TPremain--;
}
outflags &= ~MMAN_nbrword;
}
static void
print_line(const char *s, int newflags)
{
outflags |= MMAN_nl;
print_word(s);
outflags |= newflags;
}
static void
print_block(const char *s, int newflags)
{
outflags &= ~MMAN_PP;
if (MMAN_sp & outflags) {
outflags &= ~(MMAN_sp | MMAN_br);
if (MMAN_PD & outflags) {
print_line(".PD", 0);
outflags &= ~MMAN_PD;
}
} else if (! (MMAN_PD & outflags))
print_line(".PD 0", MMAN_PD);
outflags |= MMAN_nl;
print_word(s);
outflags |= MMAN_Bk_susp | newflags;
}
static void
print_offs(const char *v, int keywords)
{
char buf[24];
struct roffsu su;
const char *end;
int sz;
print_line(".RS", MMAN_Bk_susp);
/* Convert v into a number (of characters). */
if (NULL == v || '\0' == *v || (keywords && !strcmp(v, "left")))
sz = 0;
else if (keywords && !strcmp(v, "indent"))
sz = 6;
else if (keywords && !strcmp(v, "indent-two"))
sz = 12;
else {
end = a2roffsu(v, &su, SCALE_EN);
if (end == NULL || *end != '\0')
sz = man_strlen(v);
else if (SCALE_EN == su.unit)
sz = su.scale;
else {
/*
* XXX
* If we are inside an enclosing list,
* there is no easy way to add the two
* indentations because they are provided
* in terms of different units.
*/
print_word(v);
outflags |= MMAN_nl;
return;
}
}
/*
* We are inside an enclosing list.
* Add the two indentations.
*/
if (Bl_stack_len)
sz += Bl_stack[Bl_stack_len - 1];
(void)snprintf(buf, sizeof(buf), "%dn", sz);
print_word(buf);
outflags |= MMAN_nl;
}
/*
* Set up the indentation for a list item; used from pre_it().
*/
static void
print_width(const struct mdoc_bl *bl, const struct roff_node *child)
{
char buf[24];
struct roffsu su;
const char *end;
int numeric, remain, sz, chsz;
numeric = 1;
remain = 0;
/* Convert the width into a number (of characters). */
if (bl->width == NULL)
sz = (bl->type == LIST_hang) ? 6 : 0;
else {
end = a2roffsu(bl->width, &su, SCALE_MAX);
if (end == NULL || *end != '\0')
sz = man_strlen(bl->width);
else if (SCALE_EN == su.unit)
sz = su.scale;
else {
sz = 0;
numeric = 0;
}
}
/* XXX Rough estimation, might have multiple parts. */
if (bl->type == LIST_enum)
chsz = (bl->count > 8) + 1;
else if (child != NULL && child->type == ROFFT_TEXT)
chsz = man_strlen(child->string);
else
chsz = 0;
/* Maybe we are inside an enclosing list? */
mid_it();
/*
* Save our own indentation,
* such that child lists can use it.
*/
Bl_stack[Bl_stack_len++] = sz + 2;
/* Set up the current list. */
if (chsz > sz && bl->type != LIST_tag)
print_block(".HP", MMAN_spc);
else {
print_block(".TP", MMAN_spc);
remain = sz + 2;
}
if (numeric) {
(void)snprintf(buf, sizeof(buf), "%dn", sz + 2);
print_word(buf);
} else
print_word(bl->width);
TPremain = remain;
}
static void
print_count(int *count)
{
char buf[24];
(void)snprintf(buf, sizeof(buf), "%d.\\&", ++*count);
print_word(buf);
}
void
man_mdoc(void *arg, const struct roff_meta *mdoc)
{
struct roff_node *n;
printf(".\\\" Automatically generated from an mdoc input file."
" Do not edit.\n");
for (n = mdoc->first->child; n != NULL; n = n->next) {
if (n->type != ROFFT_COMMENT)
break;
printf(".\\\"%s\n", n->string);
}
printf(".TH \"%s\" \"%s\" \"%s\" \"%s\" \"%s\"\n",
mdoc->title, (mdoc->msec == NULL ? "" : mdoc->msec),
mdoc->date, mdoc->os, mdoc->vol);
/* Disable hyphenation and if nroff, disable justification. */
printf(".nh\n.if n .ad l");
outflags = MMAN_nl | MMAN_Sm;
if (0 == fontqueue.size) {
fontqueue.size = 8;
fontqueue.head = fontqueue.tail = mandoc_malloc(8);
*fontqueue.tail = 'R';
}
for (; n != NULL; n = n->next)
print_node(mdoc, n);
putchar('\n');
}
static void
print_node(DECL_ARGS)
{
const struct mdoc_man_act *act;
struct roff_node *sub;
int cond, do_sub;
if (n->flags & NODE_NOPRT)
return;
/*
* Break the line if we were parsed subsequent the current node.
* This makes the page structure be more consistent.
*/
if (outflags & MMAN_spc &&
n->flags & NODE_LINE &&
!roff_node_transparent(n))
outflags |= MMAN_nl;
act = NULL;
cond = 0;
do_sub = 1;
n->flags &= ~NODE_ENDED;
switch (n->type) {
case ROFFT_EQN:
case ROFFT_TBL:
mandoc_msg(n->type == ROFFT_EQN ? MANDOCERR_EQN_TMAN :
MANDOCERR_TBL_TMAN, n->line, n->pos, NULL);
outflags |= MMAN_PP | MMAN_sp | MMAN_nl;
print_word("The");
print_line(".B \\-T man", MMAN_nl);
print_word("output mode does not support");
print_word(n->type == ROFFT_EQN ? "eqn(7)" : "tbl(7)");
print_word("input.");
outflags |= MMAN_PP | MMAN_sp | MMAN_nl;
return;
case ROFFT_TEXT:
/*
* Make sure that we don't happen to start with a
* control character at the start of a line.
*/
if (MMAN_nl & outflags &&
('.' == *n->string || '\'' == *n->string)) {
print_word("");
printf("\\&");
outflags &= ~MMAN_spc;
}
if (n->flags & NODE_DELIMC)
outflags &= ~(MMAN_spc | MMAN_spc_force);
else if (outflags & MMAN_Sm)
outflags |= MMAN_spc_force;
print_word(n->string);
if (n->flags & NODE_DELIMO)
outflags &= ~(MMAN_spc | MMAN_spc_force);
else if (outflags & MMAN_Sm)
outflags |= MMAN_spc;
break;
default:
if (n->tok < ROFF_MAX) {
(*roff_man_acts[n->tok])(meta, n);
return;
}
act = mdoc_man_act(n->tok);
cond = act->cond == NULL || (*act->cond)(meta, n);
if (cond && act->pre != NULL &&
(n->end == ENDBODY_NOT || n->child != NULL))
do_sub = (*act->pre)(meta, n);
break;
}
/*
* Conditionally run all child nodes.
* Note that this iterates over children instead of using
* recursion. This prevents unnecessary depth in the stack.
*/
if (do_sub)
for (sub = n->child; sub; sub = sub->next)
print_node(meta, sub);
/*
* Lastly, conditionally run the post-node handler.
*/
if (NODE_ENDED & n->flags)
return;
if (cond && act->post)
(*act->post)(meta, n);
if (ENDBODY_NOT != n->end)
n->body->flags |= NODE_ENDED;
}
static int
cond_head(DECL_ARGS)
{
return n->type == ROFFT_HEAD;
}
static int
cond_body(DECL_ARGS)
{
return n->type == ROFFT_BODY;
}
static int
pre_abort(DECL_ARGS)
{
abort();
}
static int
pre_enc(DECL_ARGS)
{
const char *prefix;
prefix = mdoc_man_act(n->tok)->prefix;
if (NULL == prefix)
return 1;
print_word(prefix);
outflags &= ~MMAN_spc;
return 1;
}
static void
post_enc(DECL_ARGS)
{
const char *suffix;
suffix = mdoc_man_act(n->tok)->suffix;
if (NULL == suffix)
return;
outflags &= ~(MMAN_spc | MMAN_nl);
print_word(suffix);
}
static int
pre_ex(DECL_ARGS)
{
outflags |= MMAN_br | MMAN_nl;
return 1;
}
static void
post_font(DECL_ARGS)
{
font_pop();
}
static void
post_percent(DECL_ARGS)
{
struct roff_node *np, *nn, *nnn;
if (mdoc_man_act(n->tok)->pre == pre_em)
font_pop();
if ((nn = roff_node_next(n)) != NULL) {
np = roff_node_prev(n);
nnn = nn == NULL ? NULL : roff_node_next(nn);
if (nn->tok != n->tok ||
(np != NULL && np->tok == n->tok) ||
(nnn != NULL && nnn->tok == n->tok))
print_word(",");
if (nn->tok == n->tok &&
(nnn == NULL || nnn->tok != n->tok))
print_word("and");
} else {
print_word(".");
outflags |= MMAN_nl;
}
}
static int
pre__t(DECL_ARGS)
{
if (n->parent->tok == MDOC_Rs && n->parent->norm->Rs.quote_T) {
print_word("\\(lq");
outflags &= ~MMAN_spc;
} else
font_push('I');
return 1;
}
static void
post__t(DECL_ARGS)
{
if (n->parent->tok == MDOC_Rs && n->parent->norm->Rs.quote_T) {
outflags &= ~MMAN_spc;
print_word("\\(rq");
} else
font_pop();
post_percent(meta, n);
}
/*
* Print before a section header.
*/
static int
pre_sect(DECL_ARGS)
{
if (n->type == ROFFT_HEAD) {
outflags |= MMAN_sp;
print_block(mdoc_man_act(n->tok)->prefix, 0);
print_word("");
putchar('\"');
outflags &= ~MMAN_spc;
}
return 1;
}
/*
* Print subsequent a section header.
*/
static void
post_sect(DECL_ARGS)
{
if (n->type != ROFFT_HEAD)
return;
outflags &= ~MMAN_spc;
print_word("");
putchar('\"');
outflags |= MMAN_nl;
if (MDOC_Sh == n->tok && SEC_AUTHORS == n->sec)
outflags &= ~(MMAN_An_split | MMAN_An_nosplit);
}
/* See mdoc_term.c, synopsis_pre() for comments. */
static void
pre_syn(struct roff_node *n)
{
struct roff_node *np;
if ((n->flags & NODE_SYNPRETTY) == 0 ||
(np = roff_node_prev(n)) == NULL)
return;
if (np->tok == n->tok &&
MDOC_Ft != n->tok &&
MDOC_Fo != n->tok &&
MDOC_Fn != n->tok) {
outflags |= MMAN_br;
return;
}
switch (np->tok) {
case MDOC_Fd:
case MDOC_Fn:
case MDOC_Fo:
case MDOC_In:
case MDOC_Vt:
outflags |= MMAN_sp;
break;
case MDOC_Ft:
if (MDOC_Fn != n->tok && MDOC_Fo != n->tok) {
outflags |= MMAN_sp;
break;
}
/* FALLTHROUGH */
default:
outflags |= MMAN_br;
break;
}
}
static int
pre_an(DECL_ARGS)
{
switch (n->norm->An.auth) {
case AUTH_split:
outflags &= ~MMAN_An_nosplit;
outflags |= MMAN_An_split;
return 0;
case AUTH_nosplit:
outflags &= ~MMAN_An_split;
outflags |= MMAN_An_nosplit;
return 0;
default:
if (MMAN_An_split & outflags)
outflags |= MMAN_br;
else if (SEC_AUTHORS == n->sec &&
! (MMAN_An_nosplit & outflags))
outflags |= MMAN_An_split;
return 1;
}
}
static int
pre_ap(DECL_ARGS)
{
outflags &= ~MMAN_spc;
print_word("'");
outflags &= ~MMAN_spc;
return 0;
}
static int
pre_aq(DECL_ARGS)
{
print_word(n->child != NULL && n->child->next == NULL &&
n->child->tok == MDOC_Mt ? "<" : "\\(la");
outflags &= ~MMAN_spc;
return 1;
}
static void
post_aq(DECL_ARGS)
{
outflags &= ~(MMAN_spc | MMAN_nl);
print_word(n->child != NULL && n->child->next == NULL &&
n->child->tok == MDOC_Mt ? ">" : "\\(ra");
}
static int
pre_bd(DECL_ARGS)
{
outflags &= ~(MMAN_PP | MMAN_sp | MMAN_br);
if (n->norm->Bd.type == DISP_unfilled ||
n->norm->Bd.type == DISP_literal)
print_line(".nf", 0);
if (n->norm->Bd.comp == 0 && roff_node_prev(n->parent) != NULL)
outflags |= MMAN_sp;
print_offs(n->norm->Bd.offs, 1);
return 1;
}
static void
post_bd(DECL_ARGS)
{
enum roff_tok bef, now;
/* Close out this display. */
print_line(".RE", MMAN_nl);
bef = n->flags & NODE_NOFILL ? ROFF_nf : ROFF_fi;
if (n->last == NULL)
now = n->norm->Bd.type == DISP_unfilled ||
n->norm->Bd.type == DISP_literal ? ROFF_nf : ROFF_fi;
else if (n->last->tok == ROFF_nf)
now = ROFF_nf;
else if (n->last->tok == ROFF_fi)
now = ROFF_fi;
else
now = n->last->flags & NODE_NOFILL ? ROFF_nf : ROFF_fi;
if (bef != now) {
outflags |= MMAN_nl;
print_word(".");
outflags &= ~MMAN_spc;
print_word(roff_name[bef]);
outflags |= MMAN_nl;
}
/* Maybe we are inside an enclosing list? */
if (roff_node_next(n->parent) != NULL)
mid_it();
}
static int
pre_bf(DECL_ARGS)
{
switch (n->type) {
case ROFFT_BLOCK:
return 1;
case ROFFT_BODY:
break;
default:
return 0;
}
switch (n->norm->Bf.font) {
case FONT_Em:
font_push('I');
break;
case FONT_Sy:
font_push('B');
break;
default:
font_push('R');
break;
}
return 1;
}
static void
post_bf(DECL_ARGS)
{
if (n->type == ROFFT_BODY)
font_pop();
}
static int
pre_bk(DECL_ARGS)
{
switch (n->type) {
case ROFFT_BLOCK:
return 1;
case ROFFT_BODY:
case ROFFT_ELEM:
outflags |= MMAN_Bk;
return 1;
default:
return 0;
}
}
static void
post_bk(DECL_ARGS)
{
switch (n->type) {
case ROFFT_ELEM:
while ((n = n->parent) != NULL)
if (n->tok == MDOC_Bk)
return;
/* FALLTHROUGH */
case ROFFT_BODY:
outflags &= ~MMAN_Bk;
break;
default:
break;
}
}
static int
pre_bl(DECL_ARGS)
{
size_t icol;
/*
* print_offs() will increase the -offset to account for
* a possible enclosing .It, but any enclosed .It blocks
* just nest and do not add up their indentation.
*/
if (n->norm->Bl.offs) {
print_offs(n->norm->Bl.offs, 0);
Bl_stack[Bl_stack_len++] = 0;
}
switch (n->norm->Bl.type) {
case LIST_enum:
n->norm->Bl.count = 0;
return 1;
case LIST_column:
break;
default:
return 1;
}
if (n->child != NULL) {
print_line(".TS", MMAN_nl);
for (icol = 0; icol < n->norm->Bl.ncols; icol++)
print_word("l");
print_word(".");
}
outflags |= MMAN_nl;
return 1;
}
static void
post_bl(DECL_ARGS)
{
switch (n->norm->Bl.type) {
case LIST_column:
if (n->child != NULL)
print_line(".TE", 0);
break;
case LIST_enum:
n->norm->Bl.count = 0;
break;
default:
break;
}
if (n->norm->Bl.offs) {
print_line(".RE", MMAN_nl);
assert(Bl_stack_len);
Bl_stack_len--;
assert(Bl_stack[Bl_stack_len] == 0);
} else {
outflags |= MMAN_PP | MMAN_nl;
outflags &= ~(MMAN_sp | MMAN_br);
}
/* Maybe we are inside an enclosing list? */
if (roff_node_next(n->parent) != NULL)
mid_it();
}
static void
pre_br(DECL_ARGS)
{
outflags |= MMAN_br;
}
static int
pre_dl(DECL_ARGS)
{
print_offs("6n", 0);
return 1;
}
static void
post_dl(DECL_ARGS)
{
print_line(".RE", MMAN_nl);
/* Maybe we are inside an enclosing list? */
if (roff_node_next(n->parent) != NULL)
mid_it();
}
static int
pre_em(DECL_ARGS)
{
font_push('I');
return 1;
}
static int
pre_en(DECL_ARGS)
{
if (NULL == n->norm->Es ||
NULL == n->norm->Es->child)
return 1;
print_word(n->norm->Es->child->string);
outflags &= ~MMAN_spc;
return 1;
}
static void
post_en(DECL_ARGS)
{
if (NULL == n->norm->Es ||
NULL == n->norm->Es->child ||
NULL == n->norm->Es->child->next)
return;
outflags &= ~MMAN_spc;
print_word(n->norm->Es->child->next->string);
return;
}
static int
pre_eo(DECL_ARGS)
{
if (n->end == ENDBODY_NOT &&
n->parent->head->child == NULL &&
n->child != NULL &&
n->child->end != ENDBODY_NOT)
print_word("\\&");
else if (n->end != ENDBODY_NOT ? n->child != NULL :
n->parent->head->child != NULL && (n->child != NULL ||
(n->parent->tail != NULL && n->parent->tail->child != NULL)))
outflags &= ~(MMAN_spc | MMAN_nl);
return 1;
}
static void
post_eo(DECL_ARGS)
{
int body, tail;
if (n->end != ENDBODY_NOT) {
outflags |= MMAN_spc;
return;
}
body = n->child != NULL || n->parent->head->child != NULL;
tail = n->parent->tail != NULL && n->parent->tail->child != NULL;
if (body && tail)
outflags &= ~MMAN_spc;
else if ( ! (body || tail))
print_word("\\&");
else if ( ! tail)
outflags |= MMAN_spc;
}
static int
pre_fa(DECL_ARGS)
{
int am_Fa;
am_Fa = MDOC_Fa == n->tok;
if (am_Fa)
n = n->child;
while (NULL != n) {
font_push('I');
if (am_Fa || NODE_SYNPRETTY & n->flags)
outflags |= MMAN_nbrword;
print_node(meta, n);
font_pop();
if (NULL != (n = n->next))
print_word(",");
}
return 0;
}
static void
post_fa(DECL_ARGS)
{
struct roff_node *nn;
if ((nn = roff_node_next(n)) != NULL && nn->tok == MDOC_Fa)
print_word(",");
}
static int
pre_fd(DECL_ARGS)
{
pre_syn(n);
font_push('B');
return 1;
}
static void
post_fd(DECL_ARGS)
{
font_pop();
outflags |= MMAN_br;
}
static int
pre_fl(DECL_ARGS)
{
font_push('B');
print_word("\\-");
if (n->child != NULL)
outflags &= ~MMAN_spc;
return 1;
}
static void
post_fl(DECL_ARGS)
{
struct roff_node *nn;
font_pop();
if (n->child == NULL &&
((nn = roff_node_next(n)) != NULL &&
nn->type != ROFFT_TEXT &&
(nn->flags & NODE_LINE) == 0))
outflags &= ~MMAN_spc;
}
static int
pre_fn(DECL_ARGS)
{
pre_syn(n);
n = n->child;
if (NULL == n)
return 0;
if (NODE_SYNPRETTY & n->flags)
print_block(".HP 4n", MMAN_nl);
font_push('B');
print_node(meta, n);
font_pop();
outflags &= ~MMAN_spc;
print_word("(");
outflags &= ~MMAN_spc;
n = n->next;
if (NULL != n)
pre_fa(meta, n);
return 0;
}
static void
post_fn(DECL_ARGS)
{
print_word(")");
if (NODE_SYNPRETTY & n->flags) {
print_word(";");
outflags |= MMAN_PP;
}
}
static int
pre_fo(DECL_ARGS)
{
switch (n->type) {
case ROFFT_BLOCK:
pre_syn(n);
break;
case ROFFT_HEAD:
if (n->child == NULL)
return 0;
if (NODE_SYNPRETTY & n->flags)
print_block(".HP 4n", MMAN_nl);
font_push('B');
break;
case ROFFT_BODY:
outflags &= ~(MMAN_spc | MMAN_nl);
print_word("(");
outflags &= ~MMAN_spc;
break;
default:
break;
}
return 1;
}
static void
post_fo(DECL_ARGS)
{
switch (n->type) {
case ROFFT_HEAD:
if (n->child != NULL)
font_pop();
break;
case ROFFT_BODY:
post_fn(meta, n);
break;
default:
break;
}
}
static int
pre_Ft(DECL_ARGS)
{
pre_syn(n);
font_push('I');
return 1;
}
static void
pre_ft(DECL_ARGS)
{
print_line(".ft", 0);
print_word(n->child->string);
outflags |= MMAN_nl;
}
static int
pre_in(DECL_ARGS)
{
if (NODE_SYNPRETTY & n->flags) {
pre_syn(n);
font_push('B');
print_word("#include <");
outflags &= ~MMAN_spc;
} else {
print_word("<");
outflags &= ~MMAN_spc;
font_push('I');
}
return 1;
}
static void
post_in(DECL_ARGS)
{
if (NODE_SYNPRETTY & n->flags) {
outflags &= ~MMAN_spc;
print_word(">");
font_pop();
outflags |= MMAN_br;
} else {
font_pop();
outflags &= ~MMAN_spc;
print_word(">");
}
}
static int
pre_it(DECL_ARGS)
{
const struct roff_node *bln;
switch (n->type) {
case ROFFT_HEAD:
outflags |= MMAN_PP | MMAN_nl;
bln = n->parent->parent;
if (bln->norm->Bl.comp == 0 ||
(n->parent->prev == NULL &&
roff_node_prev(bln->parent) == NULL))
outflags |= MMAN_sp;
outflags &= ~MMAN_br;
switch (bln->norm->Bl.type) {
case LIST_item:
return 0;
case LIST_inset:
case LIST_diag:
case LIST_ohang:
if (bln->norm->Bl.type == LIST_diag)
print_line(".B \"", 0);
else
print_line(".BR \\& \"", 0);
outflags &= ~MMAN_spc;
return 1;
case LIST_bullet:
case LIST_dash:
case LIST_hyphen:
print_width(&bln->norm->Bl, NULL);
TPremain = 0;
outflags |= MMAN_nl;
font_push('B');
if (LIST_bullet == bln->norm->Bl.type)
print_word("\\(bu");
else
print_word("-");
font_pop();
outflags |= MMAN_nl;
return 0;
case LIST_enum:
print_width(&bln->norm->Bl, NULL);
TPremain = 0;
outflags |= MMAN_nl;
print_count(&bln->norm->Bl.count);
outflags |= MMAN_nl;
return 0;
case LIST_hang:
print_width(&bln->norm->Bl, n->child);
TPremain = 0;
outflags |= MMAN_nl;
return 1;
case LIST_tag:
print_width(&bln->norm->Bl, n->child);
putchar('\n');
outflags &= ~MMAN_spc;
return 1;
default:
return 1;
}
default:
break;
}
return 1;
}
/*
* This function is called after closing out an indented block.
* If we are inside an enclosing list, restore its indentation.
*/
static void
mid_it(void)
{
char buf[24];
/* Nothing to do outside a list. */
if (0 == Bl_stack_len || 0 == Bl_stack[Bl_stack_len - 1])
return;
/* The indentation has already been set up. */
if (Bl_stack_post[Bl_stack_len - 1])
return;
/* Restore the indentation of the enclosing list. */
print_line(".RS", MMAN_Bk_susp);
(void)snprintf(buf, sizeof(buf), "%dn",
Bl_stack[Bl_stack_len - 1]);
print_word(buf);
/* Remeber to close out this .RS block later. */
Bl_stack_post[Bl_stack_len - 1] = 1;
}
static void
post_it(DECL_ARGS)
{
const struct roff_node *bln;
bln = n->parent->parent;
switch (n->type) {
case ROFFT_HEAD:
switch (bln->norm->Bl.type) {
case LIST_diag:
outflags &= ~MMAN_spc;
print_word("\\ ");
break;
case LIST_ohang:
outflags |= MMAN_br;
break;
default:
break;
}
break;
case ROFFT_BODY:
switch (bln->norm->Bl.type) {
case LIST_bullet:
case LIST_dash:
case LIST_hyphen:
case LIST_enum:
case LIST_hang:
case LIST_tag:
assert(Bl_stack_len);
Bl_stack[--Bl_stack_len] = 0;
/*
* Our indentation had to be restored
* after a child display or child list.
* Close out that indentation block now.
*/
if (Bl_stack_post[Bl_stack_len]) {
print_line(".RE", MMAN_nl);
Bl_stack_post[Bl_stack_len] = 0;
}
break;
case LIST_column:
if (NULL != n->next) {
putchar('\t');
outflags &= ~MMAN_spc;
}
break;
default:
break;
}
break;
default:
break;
}
}
static void
post_lb(DECL_ARGS)
{
if (SEC_LIBRARY == n->sec)
outflags |= MMAN_br;
}
static int
pre_lk(DECL_ARGS)
{
const struct roff_node *link, *descr, *punct;
if ((link = n->child) == NULL)
return 0;
/* Find beginning of trailing punctuation. */
punct = n->last;
while (punct != link && punct->flags & NODE_DELIMC)
punct = punct->prev;
punct = punct->next;
/* Link text. */
if ((descr = link->next) != NULL && descr != punct) {
font_push('I');
while (descr != punct) {
print_word(descr->string);
descr = descr->next;
}
font_pop();
print_word(":");
}
/* Link target. */
font_push('B');
print_word(link->string);
font_pop();
/* Trailing punctuation. */
while (punct != NULL) {
print_word(punct->string);
punct = punct->next;
}
return 0;
}
static void
pre_onearg(DECL_ARGS)
{
outflags |= MMAN_nl;
print_word(".");
outflags &= ~MMAN_spc;
print_word(roff_name[n->tok]);
if (n->child != NULL)
print_word(n->child->string);
outflags |= MMAN_nl;
if (n->tok == ROFF_ce)
for (n = n->child->next; n != NULL; n = n->next)
print_node(meta, n);
}
static int
pre_li(DECL_ARGS)
{
font_push('R');
return 1;
}
static int
pre_nm(DECL_ARGS)
{
char *name;
switch (n->type) {
case ROFFT_BLOCK:
outflags |= MMAN_Bk;
pre_syn(n);
return 1;
case ROFFT_HEAD:
case ROFFT_ELEM:
break;
default:
return 1;
}
name = n->child == NULL ? NULL : n->child->string;
if (name == NULL)
return 0;
if (n->type == ROFFT_HEAD) {
if (roff_node_prev(n->parent) == NULL)
outflags |= MMAN_sp;
print_block(".HP", 0);
printf(" %dn", man_strlen(name) + 1);
outflags |= MMAN_nl;
}
font_push('B');
return 1;
}
static void
post_nm(DECL_ARGS)
{
switch (n->type) {
case ROFFT_BLOCK:
outflags &= ~MMAN_Bk;
break;
case ROFFT_HEAD:
case ROFFT_ELEM:
if (n->child != NULL && n->child->string != NULL)
font_pop();
break;
default:
break;
}
}
static int
pre_no(DECL_ARGS)
{
outflags |= MMAN_spc_force;
return 1;
}
static void
pre_noarg(DECL_ARGS)
{
outflags |= MMAN_nl;
print_word(".");
outflags &= ~MMAN_spc;
print_word(roff_name[n->tok]);
outflags |= MMAN_nl;
}
static int
pre_ns(DECL_ARGS)
{
outflags &= ~MMAN_spc;
return 0;
}
static void
post_pf(DECL_ARGS)
{
if ( ! (n->next == NULL || n->next->flags & NODE_LINE))
outflags &= ~MMAN_spc;
}
static int
pre_pp(DECL_ARGS)
{
if (MDOC_It != n->parent->tok)
outflags |= MMAN_PP;
outflags |= MMAN_sp | MMAN_nl;
outflags &= ~MMAN_br;
return 0;
}
static int
pre_rs(DECL_ARGS)
{
if (SEC_SEE_ALSO == n->sec) {
outflags |= MMAN_PP | MMAN_sp | MMAN_nl;
outflags &= ~MMAN_br;
}
return 1;
}
static int
pre_skip(DECL_ARGS)
{
return 0;
}
static int
pre_sm(DECL_ARGS)
{
if (NULL == n->child)
outflags ^= MMAN_Sm;
else if (0 == strcmp("on", n->child->string))
outflags |= MMAN_Sm;
else
outflags &= ~MMAN_Sm;
if (MMAN_Sm & outflags)
outflags |= MMAN_spc;
return 0;
}
static void
pre_sp(DECL_ARGS)
{
if (outflags & MMAN_PP) {
outflags &= ~MMAN_PP;
print_line(".PP", 0);
} else {
print_line(".sp", 0);
if (n->child != NULL)
print_word(n->child->string);
}
outflags |= MMAN_nl;
}
static int
pre_sy(DECL_ARGS)
{
font_push('B');
return 1;
}
static void
pre_ta(DECL_ARGS)
{
print_line(".ta", 0);
for (n = n->child; n != NULL; n = n->next)
print_word(n->string);
outflags |= MMAN_nl;
}
static int
pre_vt(DECL_ARGS)
{
if (NODE_SYNPRETTY & n->flags) {
switch (n->type) {
case ROFFT_BLOCK:
pre_syn(n);
return 1;
case ROFFT_BODY:
break;
default:
return 0;
}
}
font_push('I');
return 1;
}
static void
post_vt(DECL_ARGS)
{
if (n->flags & NODE_SYNPRETTY && n->type != ROFFT_BODY)
return;
font_pop();
}
static int
pre_xr(DECL_ARGS)
{
n = n->child;
if (NULL == n)
return 0;
print_node(meta, n);
n = n->next;
if (NULL == n)
return 0;
outflags &= ~MMAN_spc;
print_word("(");
print_node(meta, n);
print_word(")");
return 0;
}
