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freebsd/contrib/mdocml/mdoc_term.c
Baptiste Daroussin 6653664b44 Update mandoc to 1.13.1
2014-11-22 18:57:23 +00:00

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/* $Id: mdoc_term.c,v 1.275 2014/08/06 15:09:05 schwarze Exp $ */
/*
* Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
* Copyright (c) 2010, 2012, 2013, 2014 Ingo Schwarze <schwarze@openbsd.org>
* Copyright (c) 2013 Franco Fichtner <franco@lastsummer.de>
*
* 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 <sys/types.h>
#include <assert.h>
#include <ctype.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "mandoc.h"
#include "mandoc_aux.h"
#include "out.h"
#include "term.h"
#include "mdoc.h"
#include "main.h"
struct termpair {
struct termpair *ppair;
int count;
};
#define DECL_ARGS struct termp *p, \
struct termpair *pair, \
const struct mdoc_meta *meta, \
struct mdoc_node *n
struct termact {
int (*pre)(DECL_ARGS);
void (*post)(DECL_ARGS);
};
static size_t a2width(const struct termp *, const char *);
static size_t a2height(const struct termp *, const char *);
static size_t a2offs(const struct termp *, const char *);
static void print_bvspace(struct termp *,
const struct mdoc_node *,
const struct mdoc_node *);
static void print_mdoc_node(DECL_ARGS);
static void print_mdoc_nodelist(DECL_ARGS);
static void print_mdoc_head(struct termp *, const void *);
static void print_mdoc_foot(struct termp *, const void *);
static void synopsis_pre(struct termp *,
const struct mdoc_node *);
static void termp____post(DECL_ARGS);
static void termp__t_post(DECL_ARGS);
static void termp_an_post(DECL_ARGS);
static void termp_bd_post(DECL_ARGS);
static void termp_bk_post(DECL_ARGS);
static void termp_bl_post(DECL_ARGS);
static void termp_fd_post(DECL_ARGS);
static void termp_fo_post(DECL_ARGS);
static void termp_in_post(DECL_ARGS);
static void termp_it_post(DECL_ARGS);
static void termp_lb_post(DECL_ARGS);
static void termp_nm_post(DECL_ARGS);
static void termp_pf_post(DECL_ARGS);
static void termp_quote_post(DECL_ARGS);
static void termp_sh_post(DECL_ARGS);
static void termp_ss_post(DECL_ARGS);
static int termp__a_pre(DECL_ARGS);
static int termp__t_pre(DECL_ARGS);
static int termp_an_pre(DECL_ARGS);
static int termp_ap_pre(DECL_ARGS);
static int termp_bd_pre(DECL_ARGS);
static int termp_bf_pre(DECL_ARGS);
static int termp_bk_pre(DECL_ARGS);
static int termp_bl_pre(DECL_ARGS);
static int termp_bold_pre(DECL_ARGS);
static int termp_bt_pre(DECL_ARGS);
static int termp_bx_pre(DECL_ARGS);
static int termp_cd_pre(DECL_ARGS);
static int termp_d1_pre(DECL_ARGS);
static int termp_es_pre(DECL_ARGS);
static int termp_ex_pre(DECL_ARGS);
static int termp_fa_pre(DECL_ARGS);
static int termp_fd_pre(DECL_ARGS);
static int termp_fl_pre(DECL_ARGS);
static int termp_fn_pre(DECL_ARGS);
static int termp_fo_pre(DECL_ARGS);
static int termp_ft_pre(DECL_ARGS);
static int termp_in_pre(DECL_ARGS);
static int termp_it_pre(DECL_ARGS);
static int termp_li_pre(DECL_ARGS);
static int termp_ll_pre(DECL_ARGS);
static int termp_lk_pre(DECL_ARGS);
static int termp_nd_pre(DECL_ARGS);
static int termp_nm_pre(DECL_ARGS);
static int termp_ns_pre(DECL_ARGS);
static int termp_quote_pre(DECL_ARGS);
static int termp_rs_pre(DECL_ARGS);
static int termp_rv_pre(DECL_ARGS);
static int termp_sh_pre(DECL_ARGS);
static int termp_sm_pre(DECL_ARGS);
static int termp_sp_pre(DECL_ARGS);
static int termp_ss_pre(DECL_ARGS);
static int termp_under_pre(DECL_ARGS);
static int termp_ud_pre(DECL_ARGS);
static int termp_vt_pre(DECL_ARGS);
static int termp_xr_pre(DECL_ARGS);
static int termp_xx_pre(DECL_ARGS);
static const struct termact termacts[MDOC_MAX] = {
{ termp_ap_pre, NULL }, /* Ap */
{ NULL, NULL }, /* Dd */
{ NULL, NULL }, /* Dt */
{ NULL, NULL }, /* Os */
{ termp_sh_pre, termp_sh_post }, /* Sh */
{ termp_ss_pre, termp_ss_post }, /* Ss */
{ termp_sp_pre, NULL }, /* Pp */
{ termp_d1_pre, termp_bl_post }, /* D1 */
{ termp_d1_pre, termp_bl_post }, /* Dl */
{ termp_bd_pre, termp_bd_post }, /* Bd */
{ NULL, NULL }, /* Ed */
{ termp_bl_pre, termp_bl_post }, /* Bl */
{ NULL, NULL }, /* El */
{ termp_it_pre, termp_it_post }, /* It */
{ termp_under_pre, NULL }, /* Ad */
{ termp_an_pre, termp_an_post }, /* An */
{ termp_under_pre, NULL }, /* Ar */
{ termp_cd_pre, NULL }, /* Cd */
{ termp_bold_pre, NULL }, /* Cm */
{ NULL, NULL }, /* Dv */
{ NULL, NULL }, /* Er */
{ NULL, NULL }, /* Ev */
{ termp_ex_pre, NULL }, /* Ex */
{ termp_fa_pre, NULL }, /* Fa */
{ termp_fd_pre, termp_fd_post }, /* Fd */
{ termp_fl_pre, NULL }, /* Fl */
{ termp_fn_pre, NULL }, /* Fn */
{ termp_ft_pre, NULL }, /* Ft */
{ termp_bold_pre, NULL }, /* Ic */
{ termp_in_pre, termp_in_post }, /* In */
{ termp_li_pre, NULL }, /* Li */
{ termp_nd_pre, NULL }, /* Nd */
{ termp_nm_pre, termp_nm_post }, /* Nm */
{ termp_quote_pre, termp_quote_post }, /* Op */
{ termp_ft_pre, NULL }, /* Ot */
{ termp_under_pre, NULL }, /* Pa */
{ termp_rv_pre, NULL }, /* Rv */
{ NULL, NULL }, /* St */
{ termp_under_pre, NULL }, /* Va */
{ termp_vt_pre, NULL }, /* Vt */
{ termp_xr_pre, NULL }, /* Xr */
{ termp__a_pre, termp____post }, /* %A */
{ termp_under_pre, termp____post }, /* %B */
{ NULL, termp____post }, /* %D */
{ termp_under_pre, termp____post }, /* %I */
{ termp_under_pre, termp____post }, /* %J */
{ NULL, termp____post }, /* %N */
{ NULL, termp____post }, /* %O */
{ NULL, termp____post }, /* %P */
{ NULL, termp____post }, /* %R */
{ termp__t_pre, termp__t_post }, /* %T */
{ NULL, termp____post }, /* %V */
{ NULL, NULL }, /* Ac */
{ termp_quote_pre, termp_quote_post }, /* Ao */
{ termp_quote_pre, termp_quote_post }, /* Aq */
{ NULL, NULL }, /* At */
{ NULL, NULL }, /* Bc */
{ termp_bf_pre, NULL }, /* Bf */
{ termp_quote_pre, termp_quote_post }, /* Bo */
{ termp_quote_pre, termp_quote_post }, /* Bq */
{ termp_xx_pre, NULL }, /* Bsx */
{ termp_bx_pre, NULL }, /* Bx */
{ NULL, NULL }, /* Db */
{ NULL, NULL }, /* Dc */
{ termp_quote_pre, termp_quote_post }, /* Do */
{ termp_quote_pre, termp_quote_post }, /* Dq */
{ NULL, NULL }, /* Ec */ /* FIXME: no space */
{ NULL, NULL }, /* Ef */
{ termp_under_pre, NULL }, /* Em */
{ termp_quote_pre, termp_quote_post }, /* Eo */
{ termp_xx_pre, NULL }, /* Fx */
{ termp_bold_pre, NULL }, /* Ms */
{ NULL, NULL }, /* No */
{ termp_ns_pre, NULL }, /* Ns */
{ termp_xx_pre, NULL }, /* Nx */
{ termp_xx_pre, NULL }, /* Ox */
{ NULL, NULL }, /* Pc */
{ NULL, termp_pf_post }, /* Pf */
{ termp_quote_pre, termp_quote_post }, /* Po */
{ termp_quote_pre, termp_quote_post }, /* Pq */
{ NULL, NULL }, /* Qc */
{ termp_quote_pre, termp_quote_post }, /* Ql */
{ termp_quote_pre, termp_quote_post }, /* Qo */
{ termp_quote_pre, termp_quote_post }, /* Qq */
{ NULL, NULL }, /* Re */
{ termp_rs_pre, NULL }, /* Rs */
{ NULL, NULL }, /* Sc */
{ termp_quote_pre, termp_quote_post }, /* So */
{ termp_quote_pre, termp_quote_post }, /* Sq */
{ termp_sm_pre, NULL }, /* Sm */
{ termp_under_pre, NULL }, /* Sx */
{ termp_bold_pre, NULL }, /* Sy */
{ NULL, NULL }, /* Tn */
{ termp_xx_pre, NULL }, /* Ux */
{ NULL, NULL }, /* Xc */
{ NULL, NULL }, /* Xo */
{ termp_fo_pre, termp_fo_post }, /* Fo */
{ NULL, NULL }, /* Fc */
{ termp_quote_pre, termp_quote_post }, /* Oo */
{ NULL, NULL }, /* Oc */
{ termp_bk_pre, termp_bk_post }, /* Bk */
{ NULL, NULL }, /* Ek */
{ termp_bt_pre, NULL }, /* Bt */
{ NULL, NULL }, /* Hf */
{ termp_under_pre, NULL }, /* Fr */
{ termp_ud_pre, NULL }, /* Ud */
{ NULL, termp_lb_post }, /* Lb */
{ termp_sp_pre, NULL }, /* Lp */
{ termp_lk_pre, NULL }, /* Lk */
{ termp_under_pre, NULL }, /* Mt */
{ termp_quote_pre, termp_quote_post }, /* Brq */
{ termp_quote_pre, termp_quote_post }, /* Bro */
{ NULL, NULL }, /* Brc */
{ NULL, termp____post }, /* %C */
{ termp_es_pre, NULL }, /* Es */
{ termp_quote_pre, termp_quote_post }, /* En */
{ termp_xx_pre, NULL }, /* Dx */
{ NULL, termp____post }, /* %Q */
{ termp_sp_pre, NULL }, /* br */
{ termp_sp_pre, NULL }, /* sp */
{ NULL, termp____post }, /* %U */
{ NULL, NULL }, /* Ta */
{ termp_ll_pre, NULL }, /* ll */
};
void
terminal_mdoc(void *arg, const struct mdoc *mdoc)
{
const struct mdoc_node *n;
const struct mdoc_meta *meta;
struct termp *p;
p = (struct termp *)arg;
if (0 == p->defindent)
p->defindent = 5;
p->overstep = 0;
p->maxrmargin = p->defrmargin;
p->tabwidth = term_len(p, 5);
if (NULL == p->symtab)
p->symtab = mchars_alloc();
n = mdoc_node(mdoc);
meta = mdoc_meta(mdoc);
term_begin(p, print_mdoc_head, print_mdoc_foot, meta);
if (n->child) {
if (MDOC_Sh != n->child->tok)
term_vspace(p);
print_mdoc_nodelist(p, NULL, meta, n->child);
}
term_end(p);
}
static void
print_mdoc_nodelist(DECL_ARGS)
{
print_mdoc_node(p, pair, meta, n);
if (n->next)
print_mdoc_nodelist(p, pair, meta, n->next);
}
static void
print_mdoc_node(DECL_ARGS)
{
int chld;
struct termpair npair;
size_t offset, rmargin;
chld = 1;
offset = p->offset;
rmargin = p->rmargin;
n->prev_font = term_fontq(p);
memset(&npair, 0, sizeof(struct termpair));
npair.ppair = pair;
/*
* Keeps only work until the end of a line. If a keep was
* invoked in a prior line, revert it to PREKEEP.
*/
if (TERMP_KEEP & p->flags) {
if (n->prev ? (n->prev->lastline != n->line) :
(n->parent && n->parent->line != n->line)) {
p->flags &= ~TERMP_KEEP;
p->flags |= TERMP_PREKEEP;
}
}
/*
* After the keep flags have been set up, we may now
* produce output. Note that some pre-handlers do so.
*/
switch (n->type) {
case MDOC_TEXT:
if (' ' == *n->string && MDOC_LINE & n->flags)
term_newln(p);
if (MDOC_DELIMC & n->flags)
p->flags |= TERMP_NOSPACE;
term_word(p, n->string);
if (MDOC_DELIMO & n->flags)
p->flags |= TERMP_NOSPACE;
break;
case MDOC_EQN:
term_eqn(p, n->eqn);
break;
case MDOC_TBL:
term_tbl(p, n->span);
break;
default:
if (termacts[n->tok].pre && ENDBODY_NOT == n->end)
chld = (*termacts[n->tok].pre)
(p, &npair, meta, n);
break;
}
if (chld && n->child)
print_mdoc_nodelist(p, &npair, meta, n->child);
term_fontpopq(p,
(ENDBODY_NOT == n->end ? n : n->pending)->prev_font);
switch (n->type) {
case MDOC_TEXT:
break;
case MDOC_TBL:
break;
case MDOC_EQN:
break;
default:
if ( ! termacts[n->tok].post || MDOC_ENDED & n->flags)
break;
(void)(*termacts[n->tok].post)(p, &npair, meta, n);
/*
* Explicit end tokens not only call the post
* handler, but also tell the respective block
* that it must not call the post handler again.
*/
if (ENDBODY_NOT != n->end)
n->pending->flags |= MDOC_ENDED;
/*
* End of line terminating an implicit block
* while an explicit block is still open.
* Continue the explicit block without spacing.
*/
if (ENDBODY_NOSPACE == n->end)
p->flags |= TERMP_NOSPACE;
break;
}
if (MDOC_EOS & n->flags)
p->flags |= TERMP_SENTENCE;
if (MDOC_ll != n->tok) {
p->offset = offset;
p->rmargin = rmargin;
}
}
static void
print_mdoc_foot(struct termp *p, const void *arg)
{
const struct mdoc_meta *meta;
meta = (const struct mdoc_meta *)arg;
term_fontrepl(p, TERMFONT_NONE);
/*
* Output the footer in new-groff style, that is, three columns
* with the middle being the manual date and flanking columns
* being the operating system:
*
* SYSTEM DATE SYSTEM
*/
term_vspace(p);
p->offset = 0;
p->rmargin = (p->maxrmargin -
term_strlen(p, meta->date) + term_len(p, 1)) / 2;
p->trailspace = 1;
p->flags |= TERMP_NOSPACE | TERMP_NOBREAK;
term_word(p, meta->os);
term_flushln(p);
p->offset = p->rmargin;
p->rmargin = p->maxrmargin - term_strlen(p, meta->os);
p->flags |= TERMP_NOSPACE;
term_word(p, meta->date);
term_flushln(p);
p->offset = p->rmargin;
p->rmargin = p->maxrmargin;
p->trailspace = 0;
p->flags &= ~TERMP_NOBREAK;
p->flags |= TERMP_NOSPACE;
term_word(p, meta->os);
term_flushln(p);
p->offset = 0;
p->rmargin = p->maxrmargin;
p->flags = 0;
}
static void
print_mdoc_head(struct termp *p, const void *arg)
{
const struct mdoc_meta *meta;
char *volume, *title;
size_t vollen, titlen;
meta = (const struct mdoc_meta *)arg;
/*
* The header is strange. It has three components, which are
* really two with the first duplicated. It goes like this:
*
* IDENTIFIER TITLE IDENTIFIER
*
* The IDENTIFIER is NAME(SECTION), which is the command-name
* (if given, or "unknown" if not) followed by the manual page
* section. These are given in `Dt'. The TITLE is a free-form
* string depending on the manual volume. If not specified, it
* switches on the manual section.
*/
p->offset = 0;
p->rmargin = p->maxrmargin;
assert(meta->vol);
if (NULL == meta->arch)
volume = mandoc_strdup(meta->vol);
else
mandoc_asprintf(&volume, "%s (%s)",
meta->vol, meta->arch);
vollen = term_strlen(p, volume);
if (NULL == meta->msec)
title = mandoc_strdup(meta->title);
else
mandoc_asprintf(&title, "%s(%s)",
meta->title, meta->msec);
titlen = term_strlen(p, title);
p->flags |= TERMP_NOBREAK | TERMP_NOSPACE;
p->trailspace = 1;
p->offset = 0;
p->rmargin = 2 * (titlen+1) + vollen < p->maxrmargin ?
(p->maxrmargin - vollen + term_len(p, 1)) / 2 :
p->maxrmargin - vollen;
term_word(p, title);
term_flushln(p);
p->flags |= TERMP_NOSPACE;
p->offset = p->rmargin;
p->rmargin = p->offset + vollen + titlen < p->maxrmargin ?
p->maxrmargin - titlen : p->maxrmargin;
term_word(p, volume);
term_flushln(p);
p->flags &= ~TERMP_NOBREAK;
p->trailspace = 0;
if (p->rmargin + titlen <= p->maxrmargin) {
p->flags |= TERMP_NOSPACE;
p->offset = p->rmargin;
p->rmargin = p->maxrmargin;
term_word(p, title);
term_flushln(p);
}
p->flags &= ~TERMP_NOSPACE;
p->offset = 0;
p->rmargin = p->maxrmargin;
free(title);
free(volume);
}
static size_t
a2height(const struct termp *p, const char *v)
{
struct roffsu su;
assert(v);
if ( ! a2roffsu(v, &su, SCALE_VS))
SCALE_VS_INIT(&su, atoi(v));
return(term_vspan(p, &su));
}
static size_t
a2width(const struct termp *p, const char *v)
{
struct roffsu su;
assert(v);
if ( ! a2roffsu(v, &su, SCALE_MAX))
SCALE_HS_INIT(&su, term_strlen(p, v));
return(term_hspan(p, &su));
}
static size_t
a2offs(const struct termp *p, const char *v)
{
struct roffsu su;
if ('\0' == *v)
return(0);
else if (0 == strcmp(v, "left"))
return(0);
else if (0 == strcmp(v, "indent"))
return(term_len(p, p->defindent + 1));
else if (0 == strcmp(v, "indent-two"))
return(term_len(p, (p->defindent + 1) * 2));
else if ( ! a2roffsu(v, &su, SCALE_MAX))
SCALE_HS_INIT(&su, term_strlen(p, v));
return(term_hspan(p, &su));
}
/*
* Determine how much space to print out before block elements of `It'
* (and thus `Bl') and `Bd'. And then go ahead and print that space,
* too.
*/
static void
print_bvspace(struct termp *p,
const struct mdoc_node *bl,
const struct mdoc_node *n)
{
const struct mdoc_node *nn;
assert(n);
term_newln(p);
if (MDOC_Bd == bl->tok && bl->norm->Bd.comp)
return;
if (MDOC_Bl == bl->tok && bl->norm->Bl.comp)
return;
/* Do not vspace directly after Ss/Sh. */
for (nn = n; nn; nn = nn->parent) {
if (MDOC_BLOCK != nn->type)
continue;
if (MDOC_Ss == nn->tok)
return;
if (MDOC_Sh == nn->tok)
return;
if (NULL == nn->prev)
continue;
break;
}
/* A `-column' does not assert vspace within the list. */
if (MDOC_Bl == bl->tok && LIST_column == bl->norm->Bl.type)
if (n->prev && MDOC_It == n->prev->tok)
return;
/* A `-diag' without body does not vspace. */
if (MDOC_Bl == bl->tok && LIST_diag == bl->norm->Bl.type)
if (n->prev && MDOC_It == n->prev->tok) {
assert(n->prev->body);
if (NULL == n->prev->body->child)
return;
}
term_vspace(p);
}
static int
termp_ll_pre(DECL_ARGS)
{
term_setwidth(p, n->nchild ? n->child->string : NULL);
return(0);
}
static int
termp_it_pre(DECL_ARGS)
{
const struct mdoc_node *bl, *nn;
char buf[24];
int i;
size_t width, offset, ncols, dcol;
enum mdoc_list type;
if (MDOC_BLOCK == n->type) {
print_bvspace(p, n->parent->parent, n);
return(1);
}
bl = n->parent->parent->parent;
type = bl->norm->Bl.type;
/*
* First calculate width and offset. This is pretty easy unless
* we're a -column list, in which case all prior columns must
* be accounted for.
*/
width = offset = 0;
if (bl->norm->Bl.offs)
offset = a2offs(p, bl->norm->Bl.offs);
switch (type) {
case LIST_column:
if (MDOC_HEAD == n->type)
break;
/*
* Imitate groff's column handling:
* - For each earlier column, add its width.
* - For less than 5 columns, add four more blanks per
* column.
* - For exactly 5 columns, add three more blank per
* column.
* - For more than 5 columns, add only one column.
*/
ncols = bl->norm->Bl.ncols;
dcol = ncols < 5 ? term_len(p, 4) :
ncols == 5 ? term_len(p, 3) : term_len(p, 1);
/*
* Calculate the offset by applying all prior MDOC_BODY,
* so we stop at the MDOC_HEAD (NULL == nn->prev).
*/
for (i = 0, nn = n->prev;
nn->prev && i < (int)ncols;
nn = nn->prev, i++)
offset += dcol + a2width(p,
bl->norm->Bl.cols[i]);
/*
* When exceeding the declared number of columns, leave
* the remaining widths at 0. This will later be
* adjusted to the default width of 10, or, for the last
* column, stretched to the right margin.
*/
if (i >= (int)ncols)
break;
/*
* Use the declared column widths, extended as explained
* in the preceding paragraph.
*/
width = a2width(p, bl->norm->Bl.cols[i]) + dcol;
break;
default:
if (NULL == bl->norm->Bl.width)
break;
/*
* Note: buffer the width by 2, which is groff's magic
* number for buffering single arguments. See the above
* handling for column for how this changes.
*/
assert(bl->norm->Bl.width);
width = a2width(p, bl->norm->Bl.width) + term_len(p, 2);
break;
}
/*
* List-type can override the width in the case of fixed-head
* values (bullet, dash/hyphen, enum). Tags need a non-zero
* offset.
*/
switch (type) {
case LIST_bullet:
/* FALLTHROUGH */
case LIST_dash:
/* FALLTHROUGH */
case LIST_hyphen:
/* FALLTHROUGH */
case LIST_enum:
if (width < term_len(p, 2))
width = term_len(p, 2);
break;
case LIST_hang:
if (0 == width)
width = term_len(p, 8);
break;
case LIST_column:
/* FALLTHROUGH */
case LIST_tag:
if (0 == width)
width = term_len(p, 10);
break;
default:
break;
}
/*
* Whitespace control. Inset bodies need an initial space,
* while diagonal bodies need two.
*/
p->flags |= TERMP_NOSPACE;
switch (type) {
case LIST_diag:
if (MDOC_BODY == n->type)
term_word(p, "\\ \\ ");
break;
case LIST_inset:
if (MDOC_BODY == n->type && n->parent->head->nchild)
term_word(p, "\\ ");
break;
default:
break;
}
p->flags |= TERMP_NOSPACE;
switch (type) {
case LIST_diag:
if (MDOC_HEAD == n->type)
term_fontpush(p, TERMFONT_BOLD);
break;
default:
break;
}
/*
* Pad and break control. This is the tricky part. These flags
* are documented in term_flushln() in term.c. Note that we're
* going to unset all of these flags in termp_it_post() when we
* exit.
*/
switch (type) {
case LIST_enum:
/*
* Weird special case.
* Very narrow enum lists actually hang.
*/
if (width == term_len(p, 2))
p->flags |= TERMP_HANG;
/* FALLTHROUGH */
case LIST_bullet:
/* FALLTHROUGH */
case LIST_dash:
/* FALLTHROUGH */
case LIST_hyphen:
if (MDOC_HEAD != n->type)
break;
p->flags |= TERMP_NOBREAK;
p->trailspace = 1;
break;
case LIST_hang:
if (MDOC_HEAD != n->type)
break;
/*
* This is ugly. If `-hang' is specified and the body
* is a `Bl' or `Bd', then we want basically to nullify
* the "overstep" effect in term_flushln() and treat
* this as a `-ohang' list instead.
*/
if (n->next->child &&
(MDOC_Bl == n->next->child->tok ||
MDOC_Bd == n->next->child->tok))
break;
p->flags |= TERMP_NOBREAK | TERMP_BRIND | TERMP_HANG;
p->trailspace = 1;
break;
case LIST_tag:
if (MDOC_HEAD != n->type)
break;
p->flags |= TERMP_NOBREAK | TERMP_BRIND;
p->trailspace = 2;
if (NULL == n->next || NULL == n->next->child)
p->flags |= TERMP_DANGLE;
break;
case LIST_column:
if (MDOC_HEAD == n->type)
break;
if (NULL == n->next) {
p->flags &= ~TERMP_NOBREAK;
p->trailspace = 0;
} else {
p->flags |= TERMP_NOBREAK;
p->trailspace = 1;
}
break;
case LIST_diag:
if (MDOC_HEAD != n->type)
break;
p->flags |= TERMP_NOBREAK | TERMP_BRIND;
p->trailspace = 1;
break;
default:
break;
}
/*
* Margin control. Set-head-width lists have their right
* margins shortened. The body for these lists has the offset
* necessarily lengthened. Everybody gets the offset.
*/
p->offset += offset;
switch (type) {
case LIST_hang:
/*
* Same stipulation as above, regarding `-hang'. We
* don't want to recalculate rmargin and offsets when
* using `Bd' or `Bl' within `-hang' overstep lists.
*/
if (MDOC_HEAD == n->type && n->next->child &&
(MDOC_Bl == n->next->child->tok ||
MDOC_Bd == n->next->child->tok))
break;
/* FALLTHROUGH */
case LIST_bullet:
/* FALLTHROUGH */
case LIST_dash:
/* FALLTHROUGH */
case LIST_enum:
/* FALLTHROUGH */
case LIST_hyphen:
/* FALLTHROUGH */
case LIST_tag:
assert(width);
if (MDOC_HEAD == n->type)
p->rmargin = p->offset + width;
else {
p->offset += width;
if (p->rmargin < p->offset)
p->rmargin = p->offset;
}
break;
case LIST_column:
assert(width);
p->rmargin = p->offset + width;
/*
* XXX - this behaviour is not documented: the
* right-most column is filled to the right margin.
*/
if (MDOC_HEAD == n->type)
break;
if (NULL == n->next && p->rmargin < p->maxrmargin)
p->rmargin = p->maxrmargin;
break;
default:
break;
}
/*
* The dash, hyphen, bullet and enum lists all have a special
* HEAD character (temporarily bold, in some cases).
*/
if (MDOC_HEAD == n->type)
switch (type) {
case LIST_bullet:
term_fontpush(p, TERMFONT_BOLD);
term_word(p, "\\[bu]");
term_fontpop(p);
break;
case LIST_dash:
/* FALLTHROUGH */
case LIST_hyphen:
term_fontpush(p, TERMFONT_BOLD);
term_word(p, "\\(hy");
term_fontpop(p);
break;
case LIST_enum:
(pair->ppair->ppair->count)++;
(void)snprintf(buf, sizeof(buf), "%d.",
pair->ppair->ppair->count);
term_word(p, buf);
break;
default:
break;
}
/*
* If we're not going to process our children, indicate so here.
*/
switch (type) {
case LIST_bullet:
/* FALLTHROUGH */
case LIST_item:
/* FALLTHROUGH */
case LIST_dash:
/* FALLTHROUGH */
case LIST_hyphen:
/* FALLTHROUGH */
case LIST_enum:
if (MDOC_HEAD == n->type)
return(0);
break;
case LIST_column:
if (MDOC_HEAD == n->type)
return(0);
break;
default:
break;
}
return(1);
}
static void
termp_it_post(DECL_ARGS)
{
enum mdoc_list type;
if (MDOC_BLOCK == n->type)
return;
type = n->parent->parent->parent->norm->Bl.type;
switch (type) {
case LIST_item:
/* FALLTHROUGH */
case LIST_diag:
/* FALLTHROUGH */
case LIST_inset:
if (MDOC_BODY == n->type)
term_newln(p);
break;
case LIST_column:
if (MDOC_BODY == n->type)
term_flushln(p);
break;
default:
term_newln(p);
break;
}
/*
* Now that our output is flushed, we can reset our tags. Since
* only `It' sets these flags, we're free to assume that nobody
* has munged them in the meanwhile.
*/
p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND |
TERMP_DANGLE | TERMP_HANG);
p->trailspace = 0;
}
static int
termp_nm_pre(DECL_ARGS)
{
if (MDOC_BLOCK == n->type) {
p->flags |= TERMP_PREKEEP;
return(1);
}
if (MDOC_BODY == n->type) {
if (NULL == n->child)
return(0);
p->flags |= TERMP_NOSPACE;
p->offset += term_len(p, 1) +
(NULL == n->prev->child ?
term_strlen(p, meta->name) :
MDOC_TEXT == n->prev->child->type ?
term_strlen(p, n->prev->child->string) :
term_len(p, 5));
if (p->rmargin < p->offset)
p->rmargin = p->offset;
return(1);
}
if (NULL == n->child && NULL == meta->name)
return(0);
if (MDOC_HEAD == n->type)
synopsis_pre(p, n->parent);
if (MDOC_HEAD == n->type && n->next->child) {
p->flags |= TERMP_NOSPACE | TERMP_NOBREAK | TERMP_BRIND;
p->trailspace = 1;
p->rmargin = p->offset + term_len(p, 1);
if (NULL == n->child) {
p->rmargin += term_strlen(p, meta->name);
} else if (MDOC_TEXT == n->child->type) {
p->rmargin += term_strlen(p, n->child->string);
if (n->child->next)
p->flags |= TERMP_HANG;
} else {
p->rmargin += term_len(p, 5);
p->flags |= TERMP_HANG;
}
}
term_fontpush(p, TERMFONT_BOLD);
if (NULL == n->child)
term_word(p, meta->name);
return(1);
}
static void
termp_nm_post(DECL_ARGS)
{
if (MDOC_BLOCK == n->type) {
p->flags &= ~(TERMP_KEEP | TERMP_PREKEEP);
} else if (MDOC_HEAD == n->type && n->next->child) {
term_flushln(p);
p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND | TERMP_HANG);
p->trailspace = 0;
} else if (MDOC_BODY == n->type && n->child)
term_flushln(p);
}
static int
termp_fl_pre(DECL_ARGS)
{
term_fontpush(p, TERMFONT_BOLD);
term_word(p, "\\-");
if (n->child)
p->flags |= TERMP_NOSPACE;
else if (n->next && n->next->line == n->line)
p->flags |= TERMP_NOSPACE;
return(1);
}
static int
termp__a_pre(DECL_ARGS)
{
if (n->prev && MDOC__A == n->prev->tok)
if (NULL == n->next || MDOC__A != n->next->tok)
term_word(p, "and");
return(1);
}
static int
termp_an_pre(DECL_ARGS)
{
if (NULL == n->child)
return(1);
/*
* If not in the AUTHORS section, `An -split' will cause
* newlines to occur before the author name. If in the AUTHORS
* section, by default, the first `An' invocation is nosplit,
* then all subsequent ones, regardless of whether interspersed
* with other macros/text, are split. -split, in this case,
* will override the condition of the implied first -nosplit.
*/
if (n->sec == SEC_AUTHORS) {
if ( ! (TERMP_ANPREC & p->flags)) {
if (TERMP_SPLIT & p->flags)
term_newln(p);
return(1);
}
if (TERMP_NOSPLIT & p->flags)
return(1);
term_newln(p);
return(1);
}
if (TERMP_SPLIT & p->flags)
term_newln(p);
return(1);
}
static void
termp_an_post(DECL_ARGS)
{
if (n->child) {
if (SEC_AUTHORS == n->sec)
p->flags |= TERMP_ANPREC;
return;
}
if (AUTH_split == n->norm->An.auth) {
p->flags &= ~TERMP_NOSPLIT;
p->flags |= TERMP_SPLIT;
} else if (AUTH_nosplit == n->norm->An.auth) {
p->flags &= ~TERMP_SPLIT;
p->flags |= TERMP_NOSPLIT;
}
}
static int
termp_ns_pre(DECL_ARGS)
{
if ( ! (MDOC_LINE & n->flags))
p->flags |= TERMP_NOSPACE;
return(1);
}
static int
termp_rs_pre(DECL_ARGS)
{
if (SEC_SEE_ALSO != n->sec)
return(1);
if (MDOC_BLOCK == n->type && n->prev)
term_vspace(p);
return(1);
}
static int
termp_rv_pre(DECL_ARGS)
{
int nchild;
term_newln(p);
nchild = n->nchild;
if (nchild > 0) {
term_word(p, "The");
for (n = n->child; n; n = n->next) {
term_fontpush(p, TERMFONT_BOLD);
term_word(p, n->string);
term_fontpop(p);
p->flags |= TERMP_NOSPACE;
term_word(p, "()");
if (n->next == NULL)
continue;
if (nchild > 2) {
p->flags |= TERMP_NOSPACE;
term_word(p, ",");
}
if (n->next->next == NULL)
term_word(p, "and");
}
if (nchild > 1)
term_word(p, "functions return");
else
term_word(p, "function returns");
term_word(p, "the value\\~0 if successful;");
} else
term_word(p, "Upon successful completion,"
" the value\\~0 is returned;");
term_word(p, "otherwise the value\\~\\-1 is returned"
" and the global variable");
term_fontpush(p, TERMFONT_UNDER);
term_word(p, "errno");
term_fontpop(p);
term_word(p, "is set to indicate the error.");
p->flags |= TERMP_SENTENCE;
return(0);
}
static int
termp_ex_pre(DECL_ARGS)
{
int nchild;
term_newln(p);
term_word(p, "The");
nchild = n->nchild;
for (n = n->child; n; n = n->next) {
term_fontpush(p, TERMFONT_BOLD);
term_word(p, n->string);
term_fontpop(p);
if (nchild > 2 && n->next) {
p->flags |= TERMP_NOSPACE;
term_word(p, ",");
}
if (n->next && NULL == n->next->next)
term_word(p, "and");
}
if (nchild > 1)
term_word(p, "utilities exit\\~0");
else
term_word(p, "utility exits\\~0");
term_word(p, "on success, and\\~>0 if an error occurs.");
p->flags |= TERMP_SENTENCE;
return(0);
}
static int
termp_nd_pre(DECL_ARGS)
{
if (MDOC_BODY != n->type)
return(1);
#if defined(__OpenBSD__) || defined(__linux__)
term_word(p, "\\(en");
#else
term_word(p, "\\(em");
#endif
return(1);
}
static int
termp_bl_pre(DECL_ARGS)
{
return(MDOC_HEAD != n->type);
}
static void
termp_bl_post(DECL_ARGS)
{
if (MDOC_BLOCK == n->type)
term_newln(p);
}
static int
termp_xr_pre(DECL_ARGS)
{
if (NULL == (n = n->child))
return(0);
assert(MDOC_TEXT == n->type);
term_word(p, n->string);
if (NULL == (n = n->next))
return(0);
p->flags |= TERMP_NOSPACE;
term_word(p, "(");
p->flags |= TERMP_NOSPACE;
assert(MDOC_TEXT == n->type);
term_word(p, n->string);
p->flags |= TERMP_NOSPACE;
term_word(p, ")");
return(0);
}
/*
* This decides how to assert whitespace before any of the SYNOPSIS set
* of macros (which, as in the case of Ft/Fo and Ft/Fn, may contain
* macro combos).
*/
static void
synopsis_pre(struct termp *p, const struct mdoc_node *n)
{
/*
* Obviously, if we're not in a SYNOPSIS or no prior macros
* exist, do nothing.
*/
if (NULL == n->prev || ! (MDOC_SYNPRETTY & n->flags))
return;
/*
* If we're the second in a pair of like elements, emit our
* newline and return. UNLESS we're `Fo', `Fn', `Fn', in which
* case we soldier on.
*/
if (n->prev->tok == n->tok &&
MDOC_Ft != n->tok &&
MDOC_Fo != n->tok &&
MDOC_Fn != n->tok) {
term_newln(p);
return;
}
/*
* If we're one of the SYNOPSIS set and non-like pair-wise after
* another (or Fn/Fo, which we've let slip through) then assert
* vertical space, else only newline and move on.
*/
switch (n->prev->tok) {
case MDOC_Fd:
/* FALLTHROUGH */
case MDOC_Fn:
/* FALLTHROUGH */
case MDOC_Fo:
/* FALLTHROUGH */
case MDOC_In:
/* FALLTHROUGH */
case MDOC_Vt:
term_vspace(p);
break;
case MDOC_Ft:
if (MDOC_Fn != n->tok && MDOC_Fo != n->tok) {
term_vspace(p);
break;
}
/* FALLTHROUGH */
default:
term_newln(p);
break;
}
}
static int
termp_vt_pre(DECL_ARGS)
{
if (MDOC_ELEM == n->type) {
synopsis_pre(p, n);
return(termp_under_pre(p, pair, meta, n));
} else if (MDOC_BLOCK == n->type) {
synopsis_pre(p, n);
return(1);
} else if (MDOC_HEAD == n->type)
return(0);
return(termp_under_pre(p, pair, meta, n));
}
static int
termp_bold_pre(DECL_ARGS)
{
term_fontpush(p, TERMFONT_BOLD);
return(1);
}
static int
termp_fd_pre(DECL_ARGS)
{
synopsis_pre(p, n);
return(termp_bold_pre(p, pair, meta, n));
}
static void
termp_fd_post(DECL_ARGS)
{
term_newln(p);
}
static int
termp_sh_pre(DECL_ARGS)
{
/* No vspace between consecutive `Sh' calls. */
switch (n->type) {
case MDOC_BLOCK:
if (n->prev && MDOC_Sh == n->prev->tok)
if (NULL == n->prev->body->child)
break;
term_vspace(p);
break;
case MDOC_HEAD:
term_fontpush(p, TERMFONT_BOLD);
break;
case MDOC_BODY:
p->offset = term_len(p, p->defindent);
if (SEC_AUTHORS == n->sec)
p->flags &= ~(TERMP_SPLIT|TERMP_NOSPLIT);
break;
default:
break;
}
return(1);
}
static void
termp_sh_post(DECL_ARGS)
{
switch (n->type) {
case MDOC_HEAD:
term_newln(p);
break;
case MDOC_BODY:
term_newln(p);
p->offset = 0;
break;
default:
break;
}
}
static int
termp_bt_pre(DECL_ARGS)
{
term_word(p, "is currently in beta test.");
p->flags |= TERMP_SENTENCE;
return(0);
}
static void
termp_lb_post(DECL_ARGS)
{
if (SEC_LIBRARY == n->sec && MDOC_LINE & n->flags)
term_newln(p);
}
static int
termp_ud_pre(DECL_ARGS)
{
term_word(p, "currently under development.");
p->flags |= TERMP_SENTENCE;
return(0);
}
static int
termp_d1_pre(DECL_ARGS)
{
if (MDOC_BLOCK != n->type)
return(1);
term_newln(p);
p->offset += term_len(p, p->defindent + 1);
return(1);
}
static int
termp_ft_pre(DECL_ARGS)
{
/* NB: MDOC_LINE does not effect this! */
synopsis_pre(p, n);
term_fontpush(p, TERMFONT_UNDER);
return(1);
}
static int
termp_fn_pre(DECL_ARGS)
{
size_t rmargin = 0;
int pretty;
pretty = MDOC_SYNPRETTY & n->flags;
synopsis_pre(p, n);
if (NULL == (n = n->child))
return(0);
if (pretty) {
rmargin = p->rmargin;
p->rmargin = p->offset + term_len(p, 4);
p->flags |= TERMP_NOBREAK | TERMP_BRIND | TERMP_HANG;
}
assert(MDOC_TEXT == n->type);
term_fontpush(p, TERMFONT_BOLD);
term_word(p, n->string);
term_fontpop(p);
if (pretty) {
term_flushln(p);
p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND | TERMP_HANG);
p->offset = p->rmargin;
p->rmargin = rmargin;
}
p->flags |= TERMP_NOSPACE;
term_word(p, "(");
p->flags |= TERMP_NOSPACE;
for (n = n->next; n; n = n->next) {
assert(MDOC_TEXT == n->type);
term_fontpush(p, TERMFONT_UNDER);
if (pretty)
p->flags |= TERMP_NBRWORD;
term_word(p, n->string);
term_fontpop(p);
if (n->next) {
p->flags |= TERMP_NOSPACE;
term_word(p, ",");
}
}
p->flags |= TERMP_NOSPACE;
term_word(p, ")");
if (pretty) {
p->flags |= TERMP_NOSPACE;
term_word(p, ";");
term_flushln(p);
}
return(0);
}
static int
termp_fa_pre(DECL_ARGS)
{
const struct mdoc_node *nn;
if (n->parent->tok != MDOC_Fo) {
term_fontpush(p, TERMFONT_UNDER);
return(1);
}
for (nn = n->child; nn; nn = nn->next) {
term_fontpush(p, TERMFONT_UNDER);
p->flags |= TERMP_NBRWORD;
term_word(p, nn->string);
term_fontpop(p);
if (nn->next || (n->next && n->next->tok == MDOC_Fa)) {
p->flags |= TERMP_NOSPACE;
term_word(p, ",");
}
}
return(0);
}
static int
termp_bd_pre(DECL_ARGS)
{
size_t tabwidth, lm, len, rm, rmax;
struct mdoc_node *nn;
if (MDOC_BLOCK == n->type) {
print_bvspace(p, n, n);
return(1);
} else if (MDOC_HEAD == n->type)
return(0);
if (n->norm->Bd.offs)
p->offset += a2offs(p, n->norm->Bd.offs);
/*
* If -ragged or -filled are specified, the block does nothing
* but change the indentation. If -unfilled or -literal are
* specified, text is printed exactly as entered in the display:
* for macro lines, a newline is appended to the line. Blank
* lines are allowed.
*/
if (DISP_literal != n->norm->Bd.type &&
DISP_unfilled != n->norm->Bd.type &&
DISP_centered != n->norm->Bd.type)
return(1);
tabwidth = p->tabwidth;
if (DISP_literal == n->norm->Bd.type)
p->tabwidth = term_len(p, 8);
lm = p->offset;
rm = p->rmargin;
rmax = p->maxrmargin;
p->rmargin = p->maxrmargin = TERM_MAXMARGIN;
for (nn = n->child; nn; nn = nn->next) {
if (DISP_centered == n->norm->Bd.type) {
if (MDOC_TEXT == nn->type) {
len = term_strlen(p, nn->string);
p->offset = len >= rm ? 0 :
lm + len >= rm ? rm - len :
(lm + rm - len) / 2;
} else
p->offset = lm;
}
print_mdoc_node(p, pair, meta, nn);
/*
* If the printed node flushes its own line, then we
* needn't do it here as well. This is hacky, but the
* notion of selective eoln whitespace is pretty dumb
* anyway, so don't sweat it.
*/
switch (nn->tok) {
case MDOC_Sm:
/* FALLTHROUGH */
case MDOC_br:
/* FALLTHROUGH */
case MDOC_sp:
/* FALLTHROUGH */
case MDOC_Bl:
/* FALLTHROUGH */
case MDOC_D1:
/* FALLTHROUGH */
case MDOC_Dl:
/* FALLTHROUGH */
case MDOC_Lp:
/* FALLTHROUGH */
case MDOC_Pp:
continue;
default:
break;
}
if (nn->next && nn->next->line == nn->line)
continue;
term_flushln(p);
p->flags |= TERMP_NOSPACE;
}
p->tabwidth = tabwidth;
p->rmargin = rm;
p->maxrmargin = rmax;
return(0);
}
static void
termp_bd_post(DECL_ARGS)
{
size_t rm, rmax;
if (MDOC_BODY != n->type)
return;
rm = p->rmargin;
rmax = p->maxrmargin;
if (DISP_literal == n->norm->Bd.type ||
DISP_unfilled == n->norm->Bd.type)
p->rmargin = p->maxrmargin = TERM_MAXMARGIN;
p->flags |= TERMP_NOSPACE;
term_newln(p);
p->rmargin = rm;
p->maxrmargin = rmax;
}
static int
termp_bx_pre(DECL_ARGS)
{
if (NULL != (n = n->child)) {
term_word(p, n->string);
p->flags |= TERMP_NOSPACE;
term_word(p, "BSD");
} else {
term_word(p, "BSD");
return(0);
}
if (NULL != (n = n->next)) {
p->flags |= TERMP_NOSPACE;
term_word(p, "-");
p->flags |= TERMP_NOSPACE;
term_word(p, n->string);
}
return(0);
}
static int
termp_xx_pre(DECL_ARGS)
{
const char *pp;
int flags;
pp = NULL;
switch (n->tok) {
case MDOC_Bsx:
pp = "BSD/OS";
break;
case MDOC_Dx:
pp = "DragonFly";
break;
case MDOC_Fx:
pp = "FreeBSD";
break;
case MDOC_Nx:
pp = "NetBSD";
break;
case MDOC_Ox:
pp = "OpenBSD";
break;
case MDOC_Ux:
pp = "UNIX";
break;
default:
abort();
/* NOTREACHED */
}
term_word(p, pp);
if (n->child) {
flags = p->flags;
p->flags |= TERMP_KEEP;
term_word(p, n->child->string);
p->flags = flags;
}
return(0);
}
static void
termp_pf_post(DECL_ARGS)
{
p->flags |= TERMP_NOSPACE;
}
static int
termp_ss_pre(DECL_ARGS)
{
switch (n->type) {
case MDOC_BLOCK:
term_newln(p);
if (n->prev)
term_vspace(p);
break;
case MDOC_HEAD:
term_fontpush(p, TERMFONT_BOLD);
p->offset = term_len(p, (p->defindent+1)/2);
break;
case MDOC_BODY:
p->offset = term_len(p, p->defindent);
break;
default:
break;
}
return(1);
}
static void
termp_ss_post(DECL_ARGS)
{
if (n->type == MDOC_HEAD || n->type == MDOC_BODY)
term_newln(p);
}
static int
termp_cd_pre(DECL_ARGS)
{
synopsis_pre(p, n);
term_fontpush(p, TERMFONT_BOLD);
return(1);
}
static int
termp_in_pre(DECL_ARGS)
{
synopsis_pre(p, n);
if (MDOC_SYNPRETTY & n->flags && MDOC_LINE & n->flags) {
term_fontpush(p, TERMFONT_BOLD);
term_word(p, "#include");
term_word(p, "<");
} else {
term_word(p, "<");
term_fontpush(p, TERMFONT_UNDER);
}
p->flags |= TERMP_NOSPACE;
return(1);
}
static void
termp_in_post(DECL_ARGS)
{
if (MDOC_SYNPRETTY & n->flags)
term_fontpush(p, TERMFONT_BOLD);
p->flags |= TERMP_NOSPACE;
term_word(p, ">");
if (MDOC_SYNPRETTY & n->flags)
term_fontpop(p);
}
static int
termp_sp_pre(DECL_ARGS)
{
size_t i, len;
switch (n->tok) {
case MDOC_sp:
len = n->child ? a2height(p, n->child->string) : 1;
break;
case MDOC_br:
len = 0;
break;
default:
len = 1;
break;
}
if (0 == len)
term_newln(p);
for (i = 0; i < len; i++)
term_vspace(p);
return(0);
}
static int
termp_es_pre(DECL_ARGS)
{
return(0);
}
static int
termp_quote_pre(DECL_ARGS)
{
if (MDOC_BODY != n->type && MDOC_ELEM != n->type)
return(1);
switch (n->tok) {
case MDOC_Ao:
/* FALLTHROUGH */
case MDOC_Aq:
term_word(p, "<");
break;
case MDOC_Bro:
/* FALLTHROUGH */
case MDOC_Brq:
term_word(p, "{");
break;
case MDOC_Oo:
/* FALLTHROUGH */
case MDOC_Op:
/* FALLTHROUGH */
case MDOC_Bo:
/* FALLTHROUGH */
case MDOC_Bq:
term_word(p, "[");
break;
case MDOC_Do:
/* FALLTHROUGH */
case MDOC_Dq:
term_word(p, "\\(lq");
break;
case MDOC_En:
if (NULL == n->norm->Es ||
NULL == n->norm->Es->child)
return(1);
term_word(p, n->norm->Es->child->string);
break;
case MDOC_Eo:
break;
case MDOC_Po:
/* FALLTHROUGH */
case MDOC_Pq:
term_word(p, "(");
break;
case MDOC__T:
/* FALLTHROUGH */
case MDOC_Qo:
/* FALLTHROUGH */
case MDOC_Qq:
term_word(p, "\"");
break;
case MDOC_Ql:
/* FALLTHROUGH */
case MDOC_So:
/* FALLTHROUGH */
case MDOC_Sq:
term_word(p, "\\(oq");
break;
default:
abort();
/* NOTREACHED */
}
p->flags |= TERMP_NOSPACE;
return(1);
}
static void
termp_quote_post(DECL_ARGS)
{
if (MDOC_BODY != n->type && MDOC_ELEM != n->type)
return;
if (MDOC_En != n->tok)
p->flags |= TERMP_NOSPACE;
switch (n->tok) {
case MDOC_Ao:
/* FALLTHROUGH */
case MDOC_Aq:
term_word(p, ">");
break;
case MDOC_Bro:
/* FALLTHROUGH */
case MDOC_Brq:
term_word(p, "}");
break;
case MDOC_Oo:
/* FALLTHROUGH */
case MDOC_Op:
/* FALLTHROUGH */
case MDOC_Bo:
/* FALLTHROUGH */
case MDOC_Bq:
term_word(p, "]");
break;
case MDOC_Do:
/* FALLTHROUGH */
case MDOC_Dq:
term_word(p, "\\(rq");
break;
case MDOC_En:
if (NULL != n->norm->Es &&
NULL != n->norm->Es->child &&
NULL != n->norm->Es->child->next) {
p->flags |= TERMP_NOSPACE;
term_word(p, n->norm->Es->child->next->string);
}
break;
case MDOC_Eo:
break;
case MDOC_Po:
/* FALLTHROUGH */
case MDOC_Pq:
term_word(p, ")");
break;
case MDOC__T:
/* FALLTHROUGH */
case MDOC_Qo:
/* FALLTHROUGH */
case MDOC_Qq:
term_word(p, "\"");
break;
case MDOC_Ql:
/* FALLTHROUGH */
case MDOC_So:
/* FALLTHROUGH */
case MDOC_Sq:
term_word(p, "\\(cq");
break;
default:
abort();
/* NOTREACHED */
}
}
static int
termp_fo_pre(DECL_ARGS)
{
size_t rmargin = 0;
int pretty;
pretty = MDOC_SYNPRETTY & n->flags;
if (MDOC_BLOCK == n->type) {
synopsis_pre(p, n);
return(1);
} else if (MDOC_BODY == n->type) {
if (pretty) {
rmargin = p->rmargin;
p->rmargin = p->offset + term_len(p, 4);
p->flags |= TERMP_NOBREAK | TERMP_BRIND |
TERMP_HANG;
}
p->flags |= TERMP_NOSPACE;
term_word(p, "(");
p->flags |= TERMP_NOSPACE;
if (pretty) {
term_flushln(p);
p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND |
TERMP_HANG);
p->offset = p->rmargin;
p->rmargin = rmargin;
}
return(1);
}
if (NULL == n->child)
return(0);
/* XXX: we drop non-initial arguments as per groff. */
assert(n->child->string);
term_fontpush(p, TERMFONT_BOLD);
term_word(p, n->child->string);
return(0);
}
static void
termp_fo_post(DECL_ARGS)
{
if (MDOC_BODY != n->type)
return;
p->flags |= TERMP_NOSPACE;
term_word(p, ")");
if (MDOC_SYNPRETTY & n->flags) {
p->flags |= TERMP_NOSPACE;
term_word(p, ";");
term_flushln(p);
}
}
static int
termp_bf_pre(DECL_ARGS)
{
if (MDOC_HEAD == n->type)
return(0);
else if (MDOC_BODY != n->type)
return(1);
if (FONT_Em == n->norm->Bf.font)
term_fontpush(p, TERMFONT_UNDER);
else if (FONT_Sy == n->norm->Bf.font)
term_fontpush(p, TERMFONT_BOLD);
else
term_fontpush(p, TERMFONT_NONE);
return(1);
}
static int
termp_sm_pre(DECL_ARGS)
{
if (NULL == n->child)
p->flags ^= TERMP_NONOSPACE;
else if (0 == strcmp("on", n->child->string))
p->flags &= ~TERMP_NONOSPACE;
else
p->flags |= TERMP_NONOSPACE;
if (p->col && ! (TERMP_NONOSPACE & p->flags))
p->flags &= ~TERMP_NOSPACE;
return(0);
}
static int
termp_ap_pre(DECL_ARGS)
{
p->flags |= TERMP_NOSPACE;
term_word(p, "'");
p->flags |= TERMP_NOSPACE;
return(1);
}
static void
termp____post(DECL_ARGS)
{
/*
* Handle lists of authors. In general, print each followed by
* a comma. Don't print the comma if there are only two
* authors.
*/
if (MDOC__A == n->tok && n->next && MDOC__A == n->next->tok)
if (NULL == n->next->next || MDOC__A != n->next->next->tok)
if (NULL == n->prev || MDOC__A != n->prev->tok)
return;
/* TODO: %U. */
if (NULL == n->parent || MDOC_Rs != n->parent->tok)
return;
p->flags |= TERMP_NOSPACE;
if (NULL == n->next) {
term_word(p, ".");
p->flags |= TERMP_SENTENCE;
} else
term_word(p, ",");
}
static int
termp_li_pre(DECL_ARGS)
{
term_fontpush(p, TERMFONT_NONE);
return(1);
}
static int
termp_lk_pre(DECL_ARGS)
{
const struct mdoc_node *link, *descr;
if (NULL == (link = n->child))
return(0);
if (NULL != (descr = link->next)) {
term_fontpush(p, TERMFONT_UNDER);
while (NULL != descr) {
term_word(p, descr->string);
descr = descr->next;
}
p->flags |= TERMP_NOSPACE;
term_word(p, ":");
term_fontpop(p);
}
term_fontpush(p, TERMFONT_BOLD);
term_word(p, link->string);
term_fontpop(p);
return(0);
}
static int
termp_bk_pre(DECL_ARGS)
{
switch (n->type) {
case MDOC_BLOCK:
break;
case MDOC_HEAD:
return(0);
case MDOC_BODY:
if (n->parent->args || 0 == n->prev->nchild)
p->flags |= TERMP_PREKEEP;
break;
default:
abort();
/* NOTREACHED */
}
return(1);
}
static void
termp_bk_post(DECL_ARGS)
{
if (MDOC_BODY == n->type)
p->flags &= ~(TERMP_KEEP | TERMP_PREKEEP);
}
static void
termp__t_post(DECL_ARGS)
{
/*
* If we're in an `Rs' and there's a journal present, then quote
* us instead of underlining us (for disambiguation).
*/
if (n->parent && MDOC_Rs == n->parent->tok &&
n->parent->norm->Rs.quote_T)
termp_quote_post(p, pair, meta, n);
termp____post(p, pair, meta, n);
}
static int
termp__t_pre(DECL_ARGS)
{
/*
* If we're in an `Rs' and there's a journal present, then quote
* us instead of underlining us (for disambiguation).
*/
if (n->parent && MDOC_Rs == n->parent->tok &&
n->parent->norm->Rs.quote_T)
return(termp_quote_pre(p, pair, meta, n));
term_fontpush(p, TERMFONT_UNDER);
return(1);
}
static int
termp_under_pre(DECL_ARGS)
{
term_fontpush(p, TERMFONT_UNDER);
return(1);
}
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