mandoc/man_term.c - diff

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Diff for /mandoc/man_term.c between version 1.95 and 1.194

version 1.95, 2011/01/11 00:39:00

version 1.194, 2017/05/04 22:16:09

Line 1

/* $Id$ */

* 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

* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES

* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF

* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR

* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS 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 <limits.h>

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

#include "mandoc_aux.h"

#include "mandoc.h"

#include "out.h"

#include "roff.h"

#include "man.h"

#include "out.h"

#include "term.h"

#include "chars.h"

#include "main.h"

#define INDENT 7

#define MAXMARGINS 64 /* maximum number of indented scopes */

#define HALFINDENT 3

/* FIXME: have PD set the default vspace width. */

struct mtermp {

int fl;

#define MANT_LITERAL (1 << 0)

int lmargin[MAXMARGINS]; /* margins (incl. vis. page) */

* Default amount to indent the left margin after leading text

int lmargincur; /* index of current margin */

* has been printed (e.g., `HP' left-indent, `TP' and `IP' body

int lmarginsz; /* actual number of nested margins */

* indent). This needs to be saved because `HP' and so on, if

size_t offset; /* default offset to visible page */

* not having a specified value, must default.

int pardist; /* vert. space before par., unit: [v] */

* Note that this is the indentation AFTER the left offset, so

* the total offset is usually offset + lmargin.

size_t lmargin;

* The default offset, i.e., the amount between any text and the

* page boundary.

size_t offset;

};

#define DECL_ARGS struct termp *p, \

struct mtermp *mt, \

const struct man_node *n, \

struct roff_node *n, \

const struct man_meta *m

const struct roff_meta *meta

struct termact {

int (*pre)(DECL_ARGS);

Line 71 struct termact {

Line 58 struct termact {

#define MAN_NOTEXT (1 << 0) /* Never has text children. */

};

static int a2width(const struct termp *, const char *);

static size_t a2height(const struct termp *, const char *);

static void print_man_nodelist(DECL_ARGS);

static void print_man_node(DECL_ARGS);

static void print_man_head(struct termp *, const void *);

static void print_man_head(struct termp *,

static void print_man_foot(struct termp *, const void *);

const struct roff_meta *);

static void print_bvspace(struct termp *,

static void print_man_foot(struct termp *,

const struct man_node *);

const struct roff_meta *);

static void print_bvspace(struct termp *,

const struct roff_node *, int);

static int pre_alternate(DECL_ARGS);

static int pre_B(DECL_ARGS);

static int pre_HP(DECL_ARGS);

static int pre_I(DECL_ARGS);

static int pre_IP(DECL_ARGS);

static int pre_OP(DECL_ARGS);

static int pre_PD(DECL_ARGS);

static int pre_PP(DECL_ARGS);

static int pre_RS(DECL_ARGS);

static int pre_SH(DECL_ARGS);

static int pre_SS(DECL_ARGS);

static int pre_TP(DECL_ARGS);

static int pre_UR(DECL_ARGS);

static int pre_alternate(DECL_ARGS);

static int pre_ft(DECL_ARGS);

static int pre_ign(DECL_ARGS);

static int pre_in(DECL_ARGS);

static int pre_literal(DECL_ARGS);

static int pre_ll(DECL_ARGS);

static int pre_sp(DECL_ARGS);

static int pre_ft(DECL_ARGS);

static void post_IP(DECL_ARGS);

static void post_HP(DECL_ARGS);

Line 103 static void post_RS(DECL_ARGS);

Line 93 static void post_RS(DECL_ARGS);

static void post_SH(DECL_ARGS);

static void post_SS(DECL_ARGS);

static void post_TP(DECL_ARGS);

static void post_UR(DECL_ARGS);

static const struct termact termacts[MAN_MAX] = {

static const struct termact __termacts[MAN_MAX - MAN_TH] = {

{ pre_sp, NULL, MAN_NOTEXT }, /* br */

{ NULL, NULL, 0 }, /* TH */

{ pre_SH, post_SH, 0 }, /* SH */

{ pre_SS, post_SS, 0 }, /* SS */

Line 114 static const struct termact termacts[MAN_MAX] = {

Line 104 static const struct termact termacts[MAN_MAX] = {

{ pre_PP, NULL, 0 }, /* PP */

{ pre_PP, NULL, 0 }, /* P */

{ pre_IP, post_IP, 0 }, /* IP */

{ pre_HP, post_HP, 0 }, /* HP */

{ NULL, NULL, 0 }, /* SM */

{ pre_B, NULL, 0 }, /* SB */

{ pre_alternate, NULL, 0 }, /* BI */

Line 126 static const struct termact termacts[MAN_MAX] = {

Line 116 static const struct termact termacts[MAN_MAX] = {

{ pre_I, NULL, 0 }, /* I */

{ pre_alternate, NULL, 0 }, /* IR */

{ pre_alternate, NULL, 0 }, /* RI */

{ NULL, NULL, MAN_NOTEXT }, /* na */

{ pre_sp, NULL, MAN_NOTEXT }, /* sp */

{ pre_literal, NULL, 0 }, /* nf */

{ pre_literal, NULL, 0 }, /* fi */

{ NULL, NULL, 0 }, /* RE */

{ pre_RS, post_RS, 0 }, /* RS */

{ pre_ign, NULL, 0 }, /* DT */

{ pre_ign, NULL, 0 }, /* UC */

{ pre_ign, NULL, MAN_NOTEXT }, /* UC */

{ pre_ign, NULL, 0 }, /* PD */

{ pre_PD, NULL, MAN_NOTEXT }, /* PD */

{ pre_ign, NULL, 0 }, /* AT */

{ pre_in, NULL, MAN_NOTEXT }, /* in */

{ pre_ft, NULL, MAN_NOTEXT }, /* ft */

{ pre_OP, NULL, 0 }, /* OP */

{ pre_literal, NULL, 0 }, /* EX */

{ pre_literal, NULL, 0 }, /* EE */

{ pre_UR, post_UR, 0 }, /* UR */

{ NULL, NULL, 0 }, /* UE */

{ pre_ll, NULL, MAN_NOTEXT }, /* ll */

};

static const struct termact *termacts = __termacts - MAN_TH;

void

terminal_man(void *arg, const struct man *man)

terminal_man(void *arg, const struct roff_man *man)

{

struct termp *p;

const struct man_node *n;

struct roff_node *n;

const struct man_meta *m;

struct mtermp mt;

size_t save_defindent;

p = (struct termp *)arg;

p->overstep = 0;

p->maxrmargin = p->defrmargin;

p->rmargin = p->maxrmargin = p->defrmargin;

p->tabwidth = term_len(p, 5);

if (NULL == p->symtab)

memset(&mt, 0, sizeof(struct mtermp));

switch (p->enc) {

mt.lmargin[mt.lmargincur] = term_len(p, p->defindent);

case (TERMENC_ASCII):

mt.offset = term_len(p, p->defindent);

p->symtab = chars_init(CHARS_ASCII);

mt.pardist = 1;

break;

default:

abort();

/* NOTREACHED */

}

n = man_node(man);

n = man->first->child;

m = man_meta(man);

if (p->synopsisonly) {

while (n != NULL) {

term_begin(p, print_man_head, print_man_foot, m);

if (n->tok == MAN_SH &&

p->flags |= TERMP_NOSPACE;

n->child->child->type == ROFFT_TEXT &&

!strcmp(n->child->child->string, "SYNOPSIS")) {

mt.fl = 0;

if (n->child->next->child != NULL)

mt.lmargin = term_len(p, INDENT);

print_man_nodelist(p, &mt,

mt.offset = term_len(p, INDENT);

n->child->next->child,

&man->meta);

if (n->child)

term_newln(p);

print_man_nodelist(p, &mt, n->child, m);

break;

}

term_end(p);

n = n->next;

}

} else {

save_defindent = p->defindent;

if (p->defindent == 0)

p->defindent = 7;

term_begin(p, print_man_head, print_man_foot, &man->meta);

p->flags |= TERMP_NOSPACE;

if (n != NULL)

print_man_nodelist(p, &mt, n, &man->meta);

term_end(p);

p->defindent = save_defindent;

}

static size_t

* Printing leading vertical space before a block.

a2height(const struct termp *p, const char *cp)

* This is used for the paragraph macros.

* The rules are pretty simple, since there's very little nesting going

* on here. Basically, if we're the first within another block (SS/SH),

* then don't emit vertical space. If we are (RS), then do. If not the

* first, print it.

static void

print_bvspace(struct termp *p, const struct roff_node *n, int pardist)

{

struct roffsu su;

int i;

if ( ! a2roffsu(cp, &su, SCALE_VS))

term_newln(p);

SCALE_VS_INIT(&su, term_strlen(p, cp));

return(term_vspan(p, &su));

if (n->body && n->body->child)

}

if (n->body->child->type == ROFFT_TBL)

return;

if (n->parent->type == ROFFT_ROOT || n->parent->tok != MAN_RS)

if (NULL == n->prev)

return;

static int

for (i = 0; i < pardist; i++)

a2width(const struct termp *p, const char *cp)

term_vspace(p);

{

struct roffsu su;

if ( ! a2roffsu(cp, &su, SCALE_BU))

return(-1);

return((int)term_hspan(p, &su));

}

static void

static int

print_bvspace(struct termp *p, const struct man_node *n)

pre_ign(DECL_ARGS)

{

term_newln(p);

if (NULL == n->prev)

return 0;

return;

if (MAN_SS == n->prev->tok)

return;

if (MAN_SH == n->prev->tok)

return;

term_vspace(p);

}

/* ARGSUSED */

static int

pre_ign(DECL_ARGS)

pre_ll(DECL_ARGS)

{

return(0);

term_setwidth(p, n->child != NULL ? n->child->string : NULL);

return 0;

}

/* ARGSUSED */

static int

pre_I(DECL_ARGS)

{

term_fontrepl(p, TERMFONT_UNDER);

return(1);

return 1;

}

/* ARGSUSED */

static int

pre_literal(DECL_ARGS)

{

term_newln(p);

if (MAN_nf == n->tok)

if (MAN_nf == n->tok || MAN_EX == n->tok)

mt->fl |= MANT_LITERAL;

else

mt->fl &= ~MANT_LITERAL;

return(1);

* Unlike .IP and .TP, .HP does not have a HEAD.

* So in case a second call to term_flushln() is needed,

* indentation has to be set up explicitly.

if (MAN_HP == n->parent->tok && p->rmargin < p->maxrmargin) {

p->offset = p->rmargin;

p->rmargin = p->maxrmargin;

p->trailspace = 0;

p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND);

p->flags |= TERMP_NOSPACE;

}

return 0;

}

/* ARGSUSED */

static int

pre_PD(DECL_ARGS)

{

struct roffsu su;

n = n->child;

if (n == NULL) {

mt->pardist = 1;

return 0;

}

assert(n->type == ROFFT_TEXT);

if (a2roffsu(n->string, &su, SCALE_VS))

mt->pardist = term_vspan(p, &su);

return 0;

}

static int

pre_alternate(DECL_ARGS)

{

enum termfont font[2];

const struct man_node *nn;

struct roff_node *nn;

int savelit, i;

switch (n->tok) {

case (MAN_RB):

case MAN_RB:

font[0] = TERMFONT_NONE;

font[1] = TERMFONT_BOLD;

break;

case (MAN_RI):

case MAN_RI:

font[0] = TERMFONT_NONE;

font[1] = TERMFONT_UNDER;

break;

case (MAN_BR):

case MAN_BR:

font[0] = TERMFONT_BOLD;

font[1] = TERMFONT_NONE;

break;

case (MAN_BI):

case MAN_BI:

font[0] = TERMFONT_BOLD;

font[1] = TERMFONT_UNDER;

break;

case (MAN_IR):

case MAN_IR:

font[0] = TERMFONT_UNDER;

font[1] = TERMFONT_NONE;

break;

case (MAN_IB):

case MAN_IB:

font[0] = TERMFONT_UNDER;

font[1] = TERMFONT_BOLD;

break;

Line 302 pre_alternate(DECL_ARGS)

Line 320 pre_alternate(DECL_ARGS)

term_fontrepl(p, font[i]);

if (savelit && NULL == nn->next)

mt->fl |= MANT_LITERAL;

print_man_node(p, mt, nn, m);

assert(nn->type == ROFFT_TEXT);

term_word(p, nn->string);

if (nn->flags & NODE_EOS)

p->flags |= TERMP_SENTENCE;

if (nn->next)

p->flags |= TERMP_NOSPACE;

}

return(0);

return 0;

}

/* ARGSUSED */

static int

pre_B(DECL_ARGS)

{

term_fontrepl(p, TERMFONT_BOLD);

return(1);

return 1;

}

/* ARGSUSED */

static int

pre_OP(DECL_ARGS)

{

term_word(p, "[");

p->flags |= TERMP_NOSPACE;

if (NULL != (n = n->child)) {

term_fontrepl(p, TERMFONT_BOLD);

term_word(p, n->string);

}

if (NULL != n && NULL != n->next) {

term_fontrepl(p, TERMFONT_UNDER);

term_word(p, n->next->string);

}

term_fontrepl(p, TERMFONT_NONE);

p->flags |= TERMP_NOSPACE;

term_word(p, "]");

return 0;

}

static int

pre_ft(DECL_ARGS)

{

const char *cp;

if (NULL == n->child) {

term_fontlast(p);

return(0);

return 0;

}

cp = n->child->string;

switch (*cp) {

case ('4'):

case '4':

/* FALLTHROUGH */

case '3':

case ('3'):

case 'B':

/* FALLTHROUGH */

case ('B'):

term_fontrepl(p, TERMFONT_BOLD);

break;

case ('2'):

case '2':

/* FALLTHROUGH */

case 'I':

case ('I'):

term_fontrepl(p, TERMFONT_UNDER);

break;

case ('P'):

case 'P':

term_fontlast(p);

break;

case ('1'):

case '1':

/* FALLTHROUGH */

case 'C':

case ('C'):

case 'R':

/* FALLTHROUGH */

case ('R'):

term_fontrepl(p, TERMFONT_NONE);

break;

default:

break;

}

return(0);

return 0;

}

/* ARGSUSED */

static int

pre_in(DECL_ARGS)

{

int len, less;

struct roffsu su;

size_t v;

const char *cp;

size_t v;

int less;

term_newln(p);

if (NULL == n->child) {

p->offset = mt->offset;

return(0);

return 0;

}

cp = n->child->string;

Line 385 pre_in(DECL_ARGS)

Line 421 pre_in(DECL_ARGS)

else

cp--;

if ((len = a2width(p, ++cp)) < 0)

if ( ! a2roffsu(++cp, &su, SCALE_EN))

return(0);

return 0;

v = (size_t)len;

v = (term_hspan(p, &su) + 11) / 24;

if (less < 0)

p->offset -= p->offset > v ? v : p->offset;

else if (less > 0)

p->offset += v;

else

p->offset = v;

if (p->offset > SHRT_MAX)

p->offset = term_len(p, p->defindent);

/* Don't let this creep beyond the right margin. */

return 0;

if (p->offset > p->rmargin)

p->offset = p->rmargin;

return(0);

}

/* ARGSUSED */

static int

pre_sp(DECL_ARGS)

{

size_t i, len;

struct roffsu su;

int i, len;

switch (n->tok) {

if ((NULL == n->prev && n->parent)) {

case (MAN_br):

switch (n->parent->tok) {

len = 0;

case MAN_SH:

break;

case MAN_SS:

default:

case MAN_PP:

len = n->child ? a2height(p, n->child->string) : 1;

case MAN_LP:

break;

case MAN_P:

return 0;

default:

break;

}

if (0 == len)

if (n->child == NULL)

len = 1;

else {

if ( ! a2roffsu(n->child->string, &su, SCALE_VS))

su.scale = 1.0;

len = term_vspan(p, &su);

}

if (len == 0)

term_newln(p);

for (i = 0; i < len; i++)

else if (len < 0)

term_vspace(p);

p->skipvsp -= len;

else

for (i = 0; i < len; i++)

term_vspace(p);

return(0);

}

* Handle an explicit break request in the same way

* as an overflowing line.

if (p->flags & TERMP_BRIND) {

p->offset = p->rmargin;

p->rmargin = p->maxrmargin;

p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND);

}

/* ARGSUSED */

return 0;

}

static int

pre_HP(DECL_ARGS)

{

size_t len;

struct roffsu su;

int ival;

const struct roff_node *nn;

const struct man_node *nn;

int len;

switch (n->type) {

case (MAN_BLOCK):

case ROFFT_BLOCK:

print_bvspace(p, n);

print_bvspace(p, n, mt->pardist);

return(1);

return 1;

case (MAN_BODY):

case ROFFT_BODY:

p->flags |= TERMP_NOBREAK;

p->flags |= TERMP_TWOSPACE;

break;

default:

return(0);

return 0;

}

len = mt->lmargin;

if ( ! (MANT_LITERAL & mt->fl)) {

ival = -1;

p->flags |= TERMP_NOBREAK | TERMP_BRIND;

p->trailspace = 2;

}

/* Calculate offset. */

if (NULL != (nn = n->parent->head->child))

if ((nn = n->parent->head->child) != NULL &&

if ((ival = a2width(p, nn->string)) >= 0)

a2roffsu(nn->string, &su, SCALE_EN)) {

len = (size_t)ival;

len = term_hspan(p, &su) / 24;

if (len < 0 && (size_t)(-len) > mt->offset)

len = -mt->offset;

else if (len > SHRT_MAX)

len = term_len(p, p->defindent);

mt->lmargin[mt->lmargincur] = len;

} else

len = mt->lmargin[mt->lmargincur];

if (0 == len)

len = term_len(p, 1);

p->offset = mt->offset;

p->rmargin = mt->offset + len;

return 1;

if (ival >= 0)

mt->lmargin = (size_t)ival;

return(1);

}

/* ARGSUSED */

static void

post_HP(DECL_ARGS)

{

switch (n->type) {

case (MAN_BLOCK):

case ROFFT_BODY:

term_flushln(p);

term_newln(p);

break;

case (MAN_BODY):

term_flushln(p);

* Compatibility with a groff bug.

p->flags &= ~TERMP_NOBREAK;

* The .HP macro uses the undocumented .tag request

p->flags &= ~TERMP_TWOSPACE;

* which causes a line break and cancels no-space

* mode even if there isn't any output.

if (n->child == NULL)

term_vspace(p);

p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND);

p->trailspace = 0;

p->offset = mt->offset;

p->rmargin = p->maxrmargin;

break;

Line 493 post_HP(DECL_ARGS)

Line 555 post_HP(DECL_ARGS)

}

/* ARGSUSED */

static int

pre_PP(DECL_ARGS)

{

switch (n->type) {

case (MAN_BLOCK):

case ROFFT_BLOCK:

mt->lmargin = term_len(p, INDENT);

mt->lmargin[mt->lmargincur] = term_len(p, p->defindent);

print_bvspace(p, n);

print_bvspace(p, n, mt->pardist);

break;

default:

p->offset = mt->offset;

break;

}

return(MAN_HEAD != n->type);

return n->type != ROFFT_HEAD;

}

/* ARGSUSED */

static int

pre_IP(DECL_ARGS)

{

const struct man_node *nn;

struct roffsu su;

size_t len;

const struct roff_node *nn;

int savelit, ival;

int len, savelit;

switch (n->type) {

case (MAN_BODY):

case ROFFT_BODY:

p->flags |= TERMP_NOLPAD;

p->flags |= TERMP_NOSPACE;

break;

case (MAN_HEAD):

case ROFFT_HEAD:

p->flags |= TERMP_NOBREAK;

p->trailspace = 1;

break;

case (MAN_BLOCK):

case ROFFT_BLOCK:

print_bvspace(p, n);

print_bvspace(p, n, mt->pardist);

/* FALLTHROUGH */

default:

return(1);

return 1;

}

len = mt->lmargin;

ival = -1;

/* Calculate the offset from the optional second argument. */

if (NULL != (nn = n->parent->head->child))

if ((nn = n->parent->head->child) != NULL &&

if (NULL != (nn = nn->next))

(nn = nn->next) != NULL &&

if ((ival = a2width(p, nn->string)) >= 0)

a2roffsu(nn->string, &su, SCALE_EN)) {

len = (size_t)ival;

len = term_hspan(p, &su) / 24;

if (len < 0 && (size_t)(-len) > mt->offset)

len = -mt->offset;

else if (len > SHRT_MAX)

len = term_len(p, p->defindent);

mt->lmargin[mt->lmargincur] = len;

} else

len = mt->lmargin[mt->lmargincur];

switch (n->type) {

case (MAN_HEAD):

case ROFFT_HEAD:

/* Handle zero-width lengths. */

if (0 == len)

len = term_len(p, 1);

p->offset = mt->offset;

p->rmargin = mt->offset + len;

if (ival < 0)

break;

/* Set the saved left-margin. */

mt->lmargin = (size_t)ival;

savelit = MANT_LITERAL & mt->fl;

mt->fl &= ~MANT_LITERAL;

if (n->child)

print_man_node(p, mt, n->child, m);

print_man_node(p, mt, n->child, meta);

if (savelit)

mt->fl |= MANT_LITERAL;

return(0);

return 0;

case (MAN_BODY):

case ROFFT_BODY:

p->offset = mt->offset + len;

p->rmargin = p->maxrmargin;

break;

Line 577 pre_IP(DECL_ARGS)

Line 630 pre_IP(DECL_ARGS)

break;

}

return(1);

return 1;

}

/* ARGSUSED */

static void

post_IP(DECL_ARGS)

{

switch (n->type) {

case (MAN_HEAD):

case ROFFT_HEAD:

term_flushln(p);

p->flags &= ~TERMP_NOBREAK;

p->trailspace = 0;

p->rmargin = p->maxrmargin;

break;

case (MAN_BODY):

case ROFFT_BODY:

term_newln(p);

p->flags &= ~TERMP_NOLPAD;

p->offset = mt->offset;

break;

default:

break;

}

/* ARGSUSED */

static int

pre_TP(DECL_ARGS)

{

const struct man_node *nn;

struct roffsu su;

size_t len;

struct roff_node *nn;

int savelit, ival;

int len, savelit;

switch (n->type) {

case (MAN_HEAD):

case ROFFT_HEAD:

p->flags |= TERMP_NOBREAK;

p->flags |= TERMP_NOBREAK | TERMP_BRTRSP;

p->trailspace = 1;

break;

case (MAN_BODY):

case ROFFT_BODY:

p->flags |= TERMP_NOLPAD;

p->flags |= TERMP_NOSPACE;

break;

case (MAN_BLOCK):

case ROFFT_BLOCK:

print_bvspace(p, n);

print_bvspace(p, n, mt->pardist);

/* FALLTHROUGH */

default:

return(1);

return 1;

}

len = (size_t)mt->lmargin;

ival = -1;

/* Calculate offset. */

if (NULL != (nn = n->parent->head->child)) {

if ((nn = n->parent->head->child) != NULL &&

while (nn && MAN_TEXT != nn->type)

nn->string != NULL && ! (NODE_LINE & nn->flags) &&

nn = nn->next;

a2roffsu(nn->string, &su, SCALE_EN)) {

if (nn && nn->next)

len = term_hspan(p, &su) / 24;

if ((ival = a2width(p, nn->string)) >= 0)

if (len < 0 && (size_t)(-len) > mt->offset)

len = (size_t)ival;

len = -mt->offset;

}

else if (len > SHRT_MAX)

len = term_len(p, p->defindent);

mt->lmargin[mt->lmargincur] = len;

} else

len = mt->lmargin[mt->lmargincur];

switch (n->type) {

case (MAN_HEAD):

case ROFFT_HEAD:

/* Handle zero-length properly. */

if (0 == len)

len = term_len(p, 1);

p->offset = mt->offset;

p->rmargin = mt->offset + len;

Line 651 pre_TP(DECL_ARGS)

Line 698 pre_TP(DECL_ARGS)

mt->fl &= ~MANT_LITERAL;

/* Don't print same-line elements. */

for (nn = n->child; nn; nn = nn->next)

nn = n->child;

if (nn->line > n->line)

while (NULL != nn && 0 == (NODE_LINE & nn->flags))

print_man_node(p, mt, nn, m);

nn = nn->next;

while (NULL != nn) {

print_man_node(p, mt, nn, meta);

nn = nn->next;

}

if (savelit)

mt->fl |= MANT_LITERAL;

return 0;

if (ival >= 0)

case ROFFT_BODY:

mt->lmargin = (size_t)ival;

return(0);

case (MAN_BODY):

p->offset = mt->offset + len;

p->rmargin = p->maxrmargin;

p->trailspace = 0;

p->flags &= ~(TERMP_NOBREAK | TERMP_BRTRSP);

break;

default:

break;

}

return(1);

return 1;

}

/* ARGSUSED */

static void

post_TP(DECL_ARGS)

{

switch (n->type) {

case (MAN_HEAD):

case ROFFT_HEAD:

term_flushln(p);

p->flags &= ~TERMP_NOBREAK;

p->flags &= ~TERMP_TWOSPACE;

p->rmargin = p->maxrmargin;

break;

case (MAN_BODY):

case ROFFT_BODY:

term_newln(p);

p->flags &= ~TERMP_NOLPAD;

p->offset = mt->offset;

break;

default:

break;

}

/* ARGSUSED */

static int

pre_SS(DECL_ARGS)

{

int i;

switch (n->type) {

case (MAN_BLOCK):

case ROFFT_BLOCK:

mt->lmargin = term_len(p, INDENT);

mt->fl &= ~MANT_LITERAL;

mt->offset = term_len(p, INDENT);

mt->lmargin[mt->lmargincur] = term_len(p, p->defindent);

/* If following a prior empty `SS', no vspace. */

mt->offset = term_len(p, p->defindent);

if (n->prev && MAN_SS == n->prev->tok)

if (NULL == n->prev->body->child)

break;

* No vertical space before the first subsection

if (NULL == n->prev)

* and after an empty subsection.

do {

n = n->prev;

} while (n != NULL && n->tok != TOKEN_NONE &&

termacts[n->tok].flags & MAN_NOTEXT);

if (n == NULL || (n->tok == MAN_SS && n->body->child == NULL))

break;

term_vspace(p);

for (i = 0; i < mt->pardist; i++)

term_vspace(p);

break;

case (MAN_HEAD):

case ROFFT_HEAD:

term_fontrepl(p, TERMFONT_BOLD);

p->offset = term_len(p, HALFINDENT);

p->offset = term_len(p, 3);

p->rmargin = mt->offset;

p->trailspace = mt->offset;

p->flags |= TERMP_NOBREAK | TERMP_BRIND;

break;

case (MAN_BODY):

case ROFFT_BODY:

p->offset = mt->offset;

p->rmargin = p->maxrmargin;

p->trailspace = 0;

p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND);

break;

default:

break;

}

return(1);

return 1;

}

/* ARGSUSED */

static void

post_SS(DECL_ARGS)

{

switch (n->type) {

case (MAN_HEAD):

case ROFFT_HEAD:

term_newln(p);

break;

case (MAN_BODY):

case ROFFT_BODY:

term_newln(p);

break;

default:

Line 745 post_SS(DECL_ARGS)

Line 802 post_SS(DECL_ARGS)

}

/* ARGSUSED */

static int

pre_SH(DECL_ARGS)

{

int i;

switch (n->type) {

case (MAN_BLOCK):

case ROFFT_BLOCK:

mt->lmargin = term_len(p, INDENT);

mt->fl &= ~MANT_LITERAL;

mt->offset = term_len(p, INDENT);

mt->lmargin[mt->lmargincur] = term_len(p, p->defindent);

/* If following a prior empty `SH', no vspace. */

mt->offset = term_len(p, p->defindent);

if (n->prev && MAN_SH == n->prev->tok)

if (NULL == n->prev->body->child)

break;

* No vertical space before the first section

/* If the first macro, no vspae. */

* and after an empty section.

if (NULL == n->prev)

do {

n = n->prev;

} while (n != NULL && n->tok != TOKEN_NONE &&

termacts[n->tok].flags & MAN_NOTEXT);

if (n == NULL || (n->tok == MAN_SH && n->body->child == NULL))

break;

term_vspace(p);

for (i = 0; i < mt->pardist; i++)

term_vspace(p);

break;

case (MAN_HEAD):

case ROFFT_HEAD:

term_fontrepl(p, TERMFONT_BOLD);

p->offset = 0;

p->rmargin = mt->offset;

p->trailspace = mt->offset;

p->flags |= TERMP_NOBREAK | TERMP_BRIND;

break;

case (MAN_BODY):

case ROFFT_BODY:

p->offset = mt->offset;

p->rmargin = p->maxrmargin;

p->trailspace = 0;

p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND);

break;

default:

break;

}

return(1);

return 1;

}

/* ARGSUSED */

static void

post_SH(DECL_ARGS)

{

switch (n->type) {

case (MAN_HEAD):

case ROFFT_HEAD:

term_newln(p);

break;

case (MAN_BODY):

case ROFFT_BODY:

term_newln(p);

break;

default:

Line 796 post_SH(DECL_ARGS)

Line 864 post_SH(DECL_ARGS)

}

/* ARGSUSED */

static int

pre_RS(DECL_ARGS)

{

const struct man_node *nn;

struct roffsu su;

int ival;

switch (n->type) {

case (MAN_BLOCK):

case ROFFT_BLOCK:

term_newln(p);

return(1);

return 1;

case (MAN_HEAD):

case ROFFT_HEAD:

return(0);

return 0;

default:

break;

}

if (NULL == (nn = n->parent->head->child)) {

n = n->parent->head;

mt->offset = mt->lmargin + term_len(p, INDENT);

n->aux = SHRT_MAX + 1;

p->offset = mt->offset;

if (n->child == NULL)

return(1);

n->aux = mt->lmargin[mt->lmargincur];

}

else if (a2roffsu(n->child->string, &su, SCALE_EN))

n->aux = term_hspan(p, &su) / 24;

if (n->aux < 0 && (size_t)(-n->aux) > mt->offset)

n->aux = -mt->offset;

else if (n->aux > SHRT_MAX)

n->aux = term_len(p, p->defindent);

if ((ival = a2width(p, nn->string)) < 0)

mt->offset += n->aux;

return(1);

mt->offset = term_len(p, INDENT) + (size_t)ival;

p->offset = mt->offset;

p->rmargin = p->maxrmargin;

return(1);

if (++mt->lmarginsz < MAXMARGINS)

mt->lmargincur = mt->lmarginsz;

mt->lmargin[mt->lmargincur] = term_len(p, p->defindent);

return 1;

}

/* ARGSUSED */

static void

post_RS(DECL_ARGS)

{

switch (n->type) {

case (MAN_BLOCK):

case ROFFT_BLOCK:

mt->offset = mt->lmargin = term_len(p, INDENT);

return;

break;

case ROFFT_HEAD:

case (MAN_HEAD):

return;

break;

default:

term_newln(p);

p->offset = term_len(p, INDENT);

break;

}

mt->offset -= n->parent->head->aux;

p->offset = mt->offset;

if (--mt->lmarginsz < MAXMARGINS)

mt->lmargincur = mt->lmarginsz;

}

static int

pre_UR(DECL_ARGS)

{

return n->type != ROFFT_HEAD;

}

static void

post_UR(DECL_ARGS)

{

if (n->type != ROFFT_BLOCK)

return;

term_word(p, "<");

p->flags |= TERMP_NOSPACE;

if (NULL != n->child->child)

print_man_node(p, mt, n->child->child, meta);

p->flags |= TERMP_NOSPACE;

term_word(p, ">");

}

static void

print_man_node(DECL_ARGS)

{

size_t rm, rmax;

int c;

c = 1;

switch (n->type) {

case(MAN_TEXT):

case ROFFT_TEXT:

if (0 == *n->string) {

* If we have a blank line, output a vertical space.

* If we have a space as the first character, break

* before printing the line's data.

if ('\0' == *n->string) {

term_vspace(p);

break;

return;

}

} else if (' ' == *n->string && NODE_LINE & n->flags)

term_newln(p);

term_word(p, n->string);

goto out;

/* FIXME: this means that macro lines are munged! */

case ROFFT_EQN:

if ( ! (n->flags & NODE_LINE))

if (MANT_LITERAL & mt->fl) {

rm = p->rmargin;

rmax = p->maxrmargin;

p->rmargin = p->maxrmargin = TERM_MAXMARGIN;

p->flags |= TERMP_NOSPACE;

term_flushln(p);

term_eqn(p, n->eqn);

p->flags &= ~TERMP_NOLPAD;

if (n->next != NULL && ! (n->next->flags & NODE_LINE))

p->rmargin = rm;

p->flags |= TERMP_NOSPACE;

p->maxrmargin = rmax;

return;

}

case ROFFT_TBL:

break;

if (p->tbl.cols == NULL)

case (MAN_TBL):

term_vspace(p);

if (TBL_SPAN_FIRST & n->span->flags)

term_newln(p);

term_tbl(p, n->span);

break;

return;

default:

if ( ! (MAN_NOTEXT & termacts[n->tok].flags))

term_fontrepl(p, TERMFONT_NONE);

if (termacts[n->tok].pre)

c = (*termacts[n->tok].pre)(p, mt, n, m);

break;

}

if (n->tok < ROFF_MAX) {

roff_term_pre(p, n);

return;

}

assert(n->tok >= MAN_TH && n->tok <= MAN_MAX);

if ( ! (MAN_NOTEXT & termacts[n->tok].flags))

term_fontrepl(p, TERMFONT_NONE);

c = 1;

if (termacts[n->tok].pre)

c = (*termacts[n->tok].pre)(p, mt, n, meta);

if (c && n->child)

print_man_nodelist(p, mt, n->child, m);

print_man_nodelist(p, mt, n->child, meta);

switch (n->type) {

if (termacts[n->tok].post)

case (MAN_TEXT):

(*termacts[n->tok].post)(p, mt, n, meta);

/* FALLTHROUGH */

if ( ! (MAN_NOTEXT & termacts[n->tok].flags))

case (MAN_TBL):

term_fontrepl(p, TERMFONT_NONE);

break;

default:

if (termacts[n->tok].post)

(*termacts[n->tok].post)(p, mt, n, m);

if ( ! (MAN_NOTEXT & termacts[n->tok].flags))

term_fontrepl(p, TERMFONT_NONE);

break;

}

if (MAN_EOS & n->flags)

out:

* If we're in a literal context, make sure that words

* together on the same line stay together. This is a

* POST-printing call, so we check the NEXT word. Since

* -man doesn't have nested macros, we don't need to be

* more specific than this.

if (mt->fl & MANT_LITERAL &&

! (p->flags & (TERMP_NOBREAK | TERMP_NONEWLINE)) &&

(n->next == NULL || n->next->flags & NODE_LINE)) {

rm = p->rmargin;

rmax = p->maxrmargin;

p->rmargin = p->maxrmargin = TERM_MAXMARGIN;

p->flags |= TERMP_NOSPACE;

if (n->string != NULL && *n->string != '\0')

term_flushln(p);

else

term_newln(p);

if (rm < rmax && n->parent->tok == MAN_HP) {

p->offset = rm;

p->rmargin = rmax;

} else

p->rmargin = rm;

p->maxrmargin = rmax;

}

if (NODE_EOS & n->flags)

p->flags |= TERMP_SENTENCE;

}

Line 917 static void

Line 1040 static void

print_man_nodelist(DECL_ARGS)

{

print_man_node(p, mt, n, m);

while (n != NULL) {

if ( ! n->next)

print_man_node(p, mt, n, meta);

return;

n = n->next;

print_man_nodelist(p, mt, n->next, m);

}

static void

print_man_foot(struct termp *p, const void *arg)

print_man_foot(struct termp *p, const struct roff_meta *meta)

{

char buf[DATESIZ];

char *title;

const struct man_meta *meta;

size_t datelen, titlen;

meta = (const struct man_meta *)arg;

assert(meta->title);

assert(meta->msec);

assert(meta->date);

term_fontrepl(p, TERMFONT_NONE);

if (meta->rawdate)

if (meta->hasbody)

strlcpy(buf, meta->rawdate, DATESIZ);

term_vspace(p);

else

time2a(meta->date, buf, DATESIZ);

term_vspace(p);

* Temporary, undocumented option to imitate mdoc(7) output.

term_vspace(p);

* In the bottom right corner, use the operating system

* instead of the title.

if ( ! p->mdocstyle) {

if (meta->hasbody) {

term_vspace(p);

}

mandoc_asprintf(&title, "%s(%s)",

meta->title, meta->msec);

} else if (meta->os) {

title = mandoc_strdup(meta->os);

} else {

title = mandoc_strdup("");

}

datelen = term_strlen(p, meta->date);

/* Bottom left corner: operating system. */

p->flags |= TERMP_NOSPACE | TERMP_NOBREAK;

p->rmargin = p->maxrmargin - term_strlen(p, buf);

p->trailspace = 1;

p->offset = 0;

p->rmargin = p->maxrmargin > datelen ?

(p->maxrmargin + term_len(p, 1) - datelen) / 2 : 0;

/* term_strlen() can return zero. */

if (meta->os)

if (p->rmargin == p->maxrmargin)

term_word(p, meta->os);

p->rmargin--;

term_flushln(p);

if (meta->source)

/* At the bottom in the middle: manual date. */

term_word(p, meta->source);

if (meta->source)

p->offset = p->rmargin;

term_word(p, "");

titlen = term_strlen(p, title);

p->rmargin = p->maxrmargin > titlen ? p->maxrmargin - titlen : 0;

p->flags |= TERMP_NOSPACE;

term_word(p, meta->date);

term_flushln(p);

p->flags |= TERMP_NOLPAD | TERMP_NOSPACE;

/* Bottom right corner: manual title and section. */

p->flags &= ~TERMP_NOBREAK;

p->flags |= TERMP_NOSPACE;

p->trailspace = 0;

p->offset = p->rmargin;

p->rmargin = p->maxrmargin;

p->flags &= ~TERMP_NOBREAK;

term_word(p, buf);

term_word(p, title);

term_flushln(p);

free(title);

}

static void

print_man_head(struct termp *p, const void *arg)

print_man_head(struct termp *p, const struct roff_meta *meta)

{

char buf[BUFSIZ], title[BUFSIZ];

const char *volume;

size_t buflen, titlen;

char *title;

const struct man_meta *m;

size_t vollen, titlen;

m = (const struct man_meta *)arg;

assert(meta->title);

assert(meta->msec);

volume = NULL == meta->vol ? "" : meta->vol;

* Note that old groff would spit out some spaces before the

vollen = term_strlen(p, volume);

* header. We discontinue this strange behaviour, but at one

* point we did so here.

p->rmargin = p->maxrmargin;

/* Top left corner: manual title and section. */

p->offset = 0;

mandoc_asprintf(&title, "%s(%s)", meta->title, meta->msec);

buf[0] = title[0] = '\0';

if (m->vol)

strlcpy(buf, m->vol, BUFSIZ);

buflen = term_strlen(p, buf);

snprintf(title, BUFSIZ, "%s(%s)", m->title, m->msec);

titlen = term_strlen(p, title);

p->offset = 0;

p->rmargin = 2 * (titlen+1) + buflen < p->maxrmargin ?

(p->maxrmargin -

term_strlen(p, buf) + term_len(p, 1)) / 2 :

p->maxrmargin - buflen;

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 :

vollen < p->maxrmargin ? p->maxrmargin - vollen : 0;

term_word(p, title);

term_flushln(p);

p->flags |= TERMP_NOLPAD | TERMP_NOSPACE;

/* At the top in the middle: manual volume. */

p->flags |= TERMP_NOSPACE;

p->offset = p->rmargin;

p->rmargin = p->offset + buflen + titlen < p->maxrmargin ?

p->rmargin = p->offset + vollen + titlen < p->maxrmargin ?

p->maxrmargin - titlen : p->maxrmargin;

term_word(p, buf);

term_word(p, volume);

term_flushln(p);

/* Top right corner: title and section, again. */

p->flags &= ~TERMP_NOBREAK;

p->trailspace = 0;

if (p->rmargin + titlen <= p->maxrmargin) {

p->flags |= TERMP_NOLPAD | TERMP_NOSPACE;

p->flags |= TERMP_NOSPACE;

p->offset = p->rmargin;

p->rmargin = p->maxrmargin;

term_word(p, title);

term_flushln(p);

}

p->rmargin = p->maxrmargin;

p->offset = 0;

p->flags &= ~TERMP_NOSPACE;

p->offset = 0;

p->rmargin = p->maxrmargin;

* Groff likes to have some leading spaces before content. Well

* Groff prints three blank lines before the content.

* that's fine by me.

* Do the same, except in the temporary, undocumented

* mode imitating mdoc(7) output.

term_vspace(p);

if ( ! p->mdocstyle) {

term_vspace(p);

}

free(title);

}

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