mandoc/man_term.c - diff

Return to man_term.c CVS log

Up to [cvsweb.bsd.lv] / mandoc

Diff for /mandoc/man_term.c between version 1.66 and 1.98

version 1.66, 2010/05/15 17:25:21

version 1.98, 2011/01/16 20:12:45

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

Line 26

Line 27

#include <stdlib.h>

#include <string.h>

#include "mandoc.h"

#include "out.h"

#include "man.h"

#include "term.h"

Line 69 struct termact {

Line 71 struct termact {

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

};

static int a2width(const struct man_node *);

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

static int a2height(const struct man_node *);

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

static void print_man_head(struct termp *,

const struct man_meta *);

static void print_man_nodelist(DECL_ARGS);

static void print_man_node(DECL_ARGS);

static void print_man_foot(struct termp *,

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

const struct man_meta *);

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

static void print_bvspace(struct termp *,

const struct man_node *);

static int pre_alternate(DECL_ARGS);

static int pre_B(DECL_ARGS);

static int pre_BI(DECL_ARGS);

static int pre_HP(DECL_ARGS);

static int pre_I(DECL_ARGS);

static int pre_IP(DECL_ARGS);

static int pre_PP(DECL_ARGS);

static int pre_RB(DECL_ARGS);

static int pre_RI(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_br(DECL_ARGS);

static int pre_fi(DECL_ARGS);

static int pre_ign(DECL_ARGS);

static int pre_nf(DECL_ARGS);

static int pre_in(DECL_ARGS);

static int pre_literal(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 107 static void post_SS(DECL_ARGS);

Line 105 static void post_SS(DECL_ARGS);

static void post_TP(DECL_ARGS);

static const struct termact termacts[MAN_MAX] = {

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

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

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

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

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

Line 119 static const struct termact termacts[MAN_MAX] = {

Line 117 static const struct termact termacts[MAN_MAX] = {

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

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

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

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

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

{ pre_BI, NULL, 0 }, /* IB */

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

{ pre_RB, NULL, 0 }, /* BR */

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

{ pre_RB, NULL, 0 }, /* RB */

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

{ NULL, NULL, 0 }, /* R */

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

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

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

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

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

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

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

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

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

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

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

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

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

{ NULL, NULL, 0 }, /* r */

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

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

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

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

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

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

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

{ pre_nf, NULL, 0 }, /* Vb */

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

{ pre_fi, NULL, 0 }, /* Ve */

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

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

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

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

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

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

{ NULL, NULL, 0 }, /* . */

};

Line 164 terminal_man(void *arg, const struct man *man)

Line 154 terminal_man(void *arg, const struct man *man)

p->overstep = 0;

p->maxrmargin = p->defrmargin;

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

if (NULL == p->symtab)

switch (p->enc) {

Line 178 terminal_man(void *arg, const struct man *man)

Line 169 terminal_man(void *arg, const struct man *man)

n = man_node(man);

m = man_meta(man);

print_man_head(p, m);

term_begin(p, print_man_head, print_man_foot, m);

p->flags |= TERMP_NOSPACE;

mt.fl = 0;

mt.lmargin = INDENT;

mt.lmargin = term_len(p, INDENT);

mt.offset = INDENT;

mt.offset = term_len(p, INDENT);

if (n->child)

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

print_man_foot(p, m);

term_end(p);

}

static int

static size_t

a2height(const struct man_node *n)

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

{

struct roffsu su;

assert(MAN_TEXT == n->type);

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

assert(n->string);

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

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

SCALE_VS_INIT(&su, strlen(n->string));

return((int)term_vspan(&su));

return(term_vspan(p, &su));

}

static int

a2width(const struct man_node *n)

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

{

struct roffsu su;

assert(MAN_TEXT == n->type);

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

assert(n->string);

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

return(-1);

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

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

}

Line 257 pre_I(DECL_ARGS)

Line 245 pre_I(DECL_ARGS)

/* ARGSUSED */

static int

pre_fi(DECL_ARGS)

pre_literal(DECL_ARGS)

{

mt->fl &= ~MANT_LITERAL;

term_newln(p);

return(1);

}

if (MAN_nf == n->tok)

mt->fl |= MANT_LITERAL;

else

mt->fl &= ~MANT_LITERAL;

/* ARGSUSED */

return(1);

static int

pre_nf(DECL_ARGS)

{

mt->fl |= MANT_LITERAL;

return(MAN_Vb != n->tok);

}

/* ARGSUSED */

static int

pre_RB(DECL_ARGS)

pre_alternate(DECL_ARGS)

{

const struct man_node *nn;

enum termfont font[2];

int i;

const struct man_node *nn;

int savelit, i;

for (i = 0, nn = n->child; nn; nn = nn->next, i++) {

switch (n->tok) {

if (i % 2 && MAN_RB == n->tok)

case (MAN_RB):

term_fontrepl(p, TERMFONT_BOLD);

font[0] = TERMFONT_NONE;

else if ( ! (i % 2) && MAN_RB != n->tok)

font[1] = TERMFONT_BOLD;

term_fontrepl(p, TERMFONT_BOLD);

break;

else

case (MAN_RI):

term_fontrepl(p, TERMFONT_NONE);

font[0] = TERMFONT_NONE;

font[1] = TERMFONT_UNDER;

break;

case (MAN_BR):

font[0] = TERMFONT_BOLD;

font[1] = TERMFONT_NONE;

break;

case (MAN_BI):

font[0] = TERMFONT_BOLD;

font[1] = TERMFONT_UNDER;

break;

case (MAN_IR):

font[0] = TERMFONT_UNDER;

font[1] = TERMFONT_NONE;

break;

case (MAN_IB):

font[0] = TERMFONT_UNDER;

font[1] = TERMFONT_BOLD;

break;

default:

abort();

}

if (i > 0)

savelit = MANT_LITERAL & mt->fl;

p->flags |= TERMP_NOSPACE;

mt->fl &= ~MANT_LITERAL;

for (i = 0, nn = n->child; nn; nn = nn->next, i = 1 - i) {

term_fontrepl(p, font[i]);

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

mt->fl |= MANT_LITERAL;

print_man_node(p, mt, nn, m);

if (nn->next)

p->flags |= TERMP_NOSPACE;

}

return(0);

}

/* ARGSUSED */

static int

pre_RI(DECL_ARGS)

pre_B(DECL_ARGS)

{

const struct man_node *nn;

int i;

for (i = 0, nn = n->child; nn; nn = nn->next, i++) {

term_fontrepl(p, TERMFONT_BOLD);

if (i % 2 && MAN_RI == n->tok)

return(1);

term_fontrepl(p, TERMFONT_UNDER);

else if ( ! (i % 2) && MAN_RI != n->tok)

term_fontrepl(p, TERMFONT_UNDER);

else

term_fontrepl(p, TERMFONT_NONE);

if (i > 0)

p->flags |= TERMP_NOSPACE;

print_man_node(p, mt, nn, m);

}

return(0);

}

/* ARGSUSED */

static int

pre_BI(DECL_ARGS)

pre_ft(DECL_ARGS)

{

const struct man_node *nn;

const char *cp;

int i;

for (i = 0, nn = n->child; nn; nn = nn->next, i++) {

if (NULL == n->child) {

if (i % 2 && MAN_BI == n->tok)

term_fontlast(p);

term_fontrepl(p, TERMFONT_UNDER);

return(0);

else if (i % 2)

}

term_fontrepl(p, TERMFONT_BOLD);

else if (MAN_BI == n->tok)

term_fontrepl(p, TERMFONT_BOLD);

else

term_fontrepl(p, TERMFONT_UNDER);

if (i)

cp = n->child->string;

p->flags |= TERMP_NOSPACE;

switch (*cp) {

case ('4'):

print_man_node(p, mt, nn, m);

/* FALLTHROUGH */

case ('3'):

/* FALLTHROUGH */

case ('B'):

term_fontrepl(p, TERMFONT_BOLD);

break;

case ('2'):

/* FALLTHROUGH */

case ('I'):

term_fontrepl(p, TERMFONT_UNDER);

break;

case ('P'):

term_fontlast(p);

break;

case ('1'):

/* FALLTHROUGH */

case ('C'):

/* FALLTHROUGH */

case ('R'):

term_fontrepl(p, TERMFONT_NONE);

break;

default:

break;

}

return(0);

}

/* ARGSUSED */

static int

pre_B(DECL_ARGS)

pre_in(DECL_ARGS)

{

int len, less;

size_t v;

const char *cp;

term_fontrepl(p, TERMFONT_BOLD);

term_newln(p);

return(1);

if (NULL == n->child) {

p->offset = mt->offset;

return(0);

}

cp = n->child->string;

less = 0;

if ('-' == *cp)

less = -1;

else if ('+' == *cp)

less = 1;

else

cp--;

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

return(0);

v = (size_t)len;

if (less < 0)

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

else if (less > 0)

p->offset += v;

else

p->offset = v;

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

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

p->offset = p->rmargin;

return(0);

}

Line 363 pre_B(DECL_ARGS)

Line 410 pre_B(DECL_ARGS)

static int

pre_sp(DECL_ARGS)

{

int i, len;

size_t i, len;

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

switch (n->tok) {

case (MAN_br):

len = 0;

break;

default:

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

break;

}

if (0 == len)

term_newln(p);

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

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

term_vspace(p);

return(0);

Line 378 pre_sp(DECL_ARGS)

Line 432 pre_sp(DECL_ARGS)

/* ARGSUSED */

static int

pre_br(DECL_ARGS)

{

term_newln(p);

return(0);

}

/* ARGSUSED */

static int

pre_HP(DECL_ARGS)

{

size_t len;

Line 412 pre_HP(DECL_ARGS)

Line 456 pre_HP(DECL_ARGS)

/* Calculate offset. */

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

if ((ival = a2width(nn)) >= 0)

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

len = (size_t)ival;

if (0 == len)

len = 1;

len = term_len(p, 1);

p->offset = mt->offset;

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

Line 457 pre_PP(DECL_ARGS)

Line 501 pre_PP(DECL_ARGS)

switch (n->type) {

case (MAN_BLOCK):

mt->lmargin = INDENT;

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

print_bvspace(p, n);

break;

default:

Line 465 pre_PP(DECL_ARGS)

Line 509 pre_PP(DECL_ARGS)

break;

}

return(1);

return(MAN_HEAD != n->type);

}

Line 475 pre_IP(DECL_ARGS)

Line 519 pre_IP(DECL_ARGS)

{

const struct man_node *nn;

size_t len;

int ival;

int savelit, ival;

switch (n->type) {

case (MAN_BODY):

Line 495 pre_IP(DECL_ARGS)

Line 539 pre_IP(DECL_ARGS)

len = mt->lmargin;

ival = -1;

/* Calculate offset. */

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

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

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

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

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

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

/* Do nothing. */ ;

if ((ival = a2width(nn)) >= 0)

len = (size_t)ival;

}

switch (n->type) {

case (MAN_HEAD):

/* Handle zero-width lengths. */

if (0 == len)

len = 1;

len = term_len(p, 1);

p->offset = mt->offset;

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

Line 519 pre_IP(DECL_ARGS)

Line 559 pre_IP(DECL_ARGS)

/* Set the saved left-margin. */

mt->lmargin = (size_t)ival;

/* Don't print the length value. */

savelit = MANT_LITERAL & mt->fl;

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

mt->fl &= ~MANT_LITERAL;

print_man_node(p, mt, nn, m);

if (n->child)

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

if (savelit)

mt->fl |= MANT_LITERAL;

return(0);

case (MAN_BODY):

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

Line 547 post_IP(DECL_ARGS)

Line 593 post_IP(DECL_ARGS)

p->rmargin = p->maxrmargin;

break;

case (MAN_BODY):

term_flushln(p);

term_newln(p);

p->flags &= ~TERMP_NOLPAD;

break;

default:

Line 562 pre_TP(DECL_ARGS)

Line 608 pre_TP(DECL_ARGS)

{

const struct man_node *nn;

size_t len;

int ival;

int savelit, ival;

switch (n->type) {

case (MAN_HEAD):

p->flags |= TERMP_NOBREAK;

p->flags |= TERMP_TWOSPACE;

break;

case (MAN_BODY):

p->flags |= TERMP_NOLPAD;

Line 589 pre_TP(DECL_ARGS)

Line 634 pre_TP(DECL_ARGS)

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

nn = nn->next;

if (nn && nn->next)

if ((ival = a2width(nn)) >= 0)

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

len = (size_t)ival;

}

Line 597 pre_TP(DECL_ARGS)

Line 642 pre_TP(DECL_ARGS)

case (MAN_HEAD):

/* Handle zero-length properly. */

if (0 == len)

len = 1;

len = term_len(p, 1);

p->offset = mt->offset;

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

savelit = MANT_LITERAL & mt->fl;

mt->fl &= ~MANT_LITERAL;

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

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

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

print_man_node(p, mt, nn, m);

if (savelit)

mt->fl |= MANT_LITERAL;

if (ival >= 0)

mt->lmargin = (size_t)ival;

Line 636 post_TP(DECL_ARGS)

Line 687 post_TP(DECL_ARGS)

p->rmargin = p->maxrmargin;

break;

case (MAN_BODY):

term_flushln(p);

term_newln(p);

p->flags &= ~TERMP_NOLPAD;

break;

default:

Line 652 pre_SS(DECL_ARGS)

Line 703 pre_SS(DECL_ARGS)

switch (n->type) {

case (MAN_BLOCK):

mt->lmargin = INDENT;

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

mt->offset = INDENT;

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

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

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

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

Line 664 pre_SS(DECL_ARGS)

Line 715 pre_SS(DECL_ARGS)

break;

case (MAN_HEAD):

term_fontrepl(p, TERMFONT_BOLD);

p->offset = HALFINDENT;

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

break;

case (MAN_BODY):

p->offset = mt->offset;

Line 702 pre_SH(DECL_ARGS)

Line 753 pre_SH(DECL_ARGS)

switch (n->type) {

case (MAN_BLOCK):

mt->lmargin = INDENT;

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

mt->offset = INDENT;

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

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

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

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

Line 764 pre_RS(DECL_ARGS)

Line 815 pre_RS(DECL_ARGS)

}

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

mt->offset = mt->lmargin + INDENT;

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

p->offset = mt->offset;

return(1);

}

if ((ival = a2width(nn)) < 0)

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

return(1);

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

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

p->offset = mt->offset;

return(1);

Line 786 post_RS(DECL_ARGS)

Line 837 post_RS(DECL_ARGS)

switch (n->type) {

case (MAN_BLOCK):

mt->offset = mt->lmargin = INDENT;

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

break;

case (MAN_HEAD):

break;

default:

term_newln(p);

p->offset = INDENT;

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

break;

}

Line 804 print_man_node(DECL_ARGS)

Line 855 print_man_node(DECL_ARGS)

size_t rm, rmax;

int c;

c = 1;

switch (n->type) {

case(MAN_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 && MAN_LINE & n->flags)

term_newln(p);

term_word(p, n->string);

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

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

if (MANT_LITERAL & mt->fl) {

* togehter 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 (MANT_LITERAL & mt->fl &&

(NULL == n->next ||

n->next->line > n->line)) {

rm = p->rmargin;

rmax = p->maxrmargin;

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

p->flags |= TERMP_NOSPACE;

term_flushln(p);

p->flags &= ~TERMP_NOLPAD;

p->rmargin = rm;

p->maxrmargin = rmax;

}

break;

return;

case (MAN_TBL):

* Tables are preceded by a newline. Then process a

* table line, which will cause line termination,

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

term_newln(p);

term_tbl(p, n->span);

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 ( ! (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, m);

if (c && n->child)

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

if (MAN_TEXT != n->type) {

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);

}

if (MAN_EOS & n->flags)

p->flags |= TERMP_SENTENCE;

Line 862 print_man_nodelist(DECL_ARGS)

Line 935 print_man_nodelist(DECL_ARGS)

static void

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

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

{

char buf[DATESIZ];

const struct man_meta *meta;

meta = (const struct man_meta *)arg;

term_fontrepl(p, TERMFONT_NONE);

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

if (meta->rawdate)

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

else

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

term_vspace(p);

p->flags |= TERMP_NOSPACE | TERMP_NOBREAK;

p->rmargin = p->maxrmargin - strlen(buf);

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

p->offset = 0;

/* term_strlen() can return zero. */

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

p->rmargin--;

if (meta->source)

term_word(p, meta->source);

if (meta->source)

Line 893 print_man_foot(struct termp *p, const struct man_meta

Line 978 print_man_foot(struct termp *p, const struct man_meta

static void

print_man_head(struct termp *p, const struct man_meta *m)

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

{

char buf[BUFSIZ], title[BUFSIZ];

size_t buflen, titlen;

const struct man_meta *m;

m = (const struct man_meta *)arg;

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

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

Line 911 print_man_head(struct termp *p, const struct man_meta

Line 999 print_man_head(struct termp *p, const struct man_meta

if (m->vol)

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

buflen = strlen(buf);

buflen = term_strlen(p, buf);

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

titlen = strlen(title);

titlen = term_strlen(p, title);

p->offset = 0;

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

(p->maxrmargin - strlen(buf) + 1) / 2 :

(p->maxrmargin -

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

p->maxrmargin - buflen;

p->flags |= TERMP_NOBREAK | TERMP_NOSPACE;

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