mandoc/man_term.c - diff

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Diff for /mandoc/man_term.c between version 1.114 and 1.129

version 1.114, 2011/07/21 11:34:53

version 1.129, 2012/06/02 20:16:23

Line 1

/* $Id$ */

* Permission to use, copy, modify, and distribute this software for any

Line 33

#include "term.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)

size_t lmargin[MAXMARGINS]; /* margins (incl. visible 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.

* 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, \

Line 80 static void print_man_foot(struct termp *, const vo

Line 68 static void print_man_foot(struct termp *, const vo

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_HP(DECL_ARGS);

static int pre_I(DECL_ARGS);

static int pre_IP(DECL_ARGS);

static int pre_OP(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_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_sp(DECL_ARGS);

static int pre_ft(DECL_ARGS);

static void post_IP(DECL_ARGS);

static void post_HP(DECL_ARGS);

Line 137 static const struct termact termacts[MAN_MAX] = {

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

{ 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 */

};

Line 151 terminal_man(void *arg, const struct man *man)

Line 143 terminal_man(void *arg, const struct man *man)

p = (struct termp *)arg;

if (0 == p->defindent)

p->defindent = 7;

p->overstep = 0;

p->maxrmargin = p->defrmargin;

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

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

Line 159 terminal_man(void *arg, const struct man *man)

term_begin(p, print_man_head, print_man_foot, m);

p->flags |= TERMP_NOSPACE;

mt.fl = 0;

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

mt.lmargin = term_len(p, INDENT);

mt.offset = term_len(p, INDENT);

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

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

if (n->child)

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

Line 249 pre_literal(DECL_ARGS)

Line 245 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;

* 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->flags &= ~(TERMP_NOBREAK | TERMP_TWOSPACE);

p->flags |= TERMP_NOSPACE;

}

return(0);

}

Line 320 pre_B(DECL_ARGS)

Line 328 pre_B(DECL_ARGS)

/* 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);

}

/* ARGSUSED */

static int

pre_ft(DECL_ARGS)

{

const char *cp;

Line 440 pre_sp(DECL_ARGS)

Line 471 pre_sp(DECL_ARGS)

static int

pre_HP(DECL_ARGS)

{

size_t len;

size_t len, one;

int ival;

const struct man_node *nn;

Line 456 pre_HP(DECL_ARGS)

Line 487 pre_HP(DECL_ARGS)

return(0);

}

len = mt->lmargin;

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

ival = -1;

/* Calculate offset. */

Line 465 pre_HP(DECL_ARGS)

Line 496 pre_HP(DECL_ARGS)

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

len = (size_t)ival;

if (0 == len)

one = term_len(p, 1);

len = term_len(p, 1);

if (len < one)

len = one;

p->offset = mt->offset;

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

if (ival >= 0)

mt->lmargin = (size_t)ival;

mt->lmargin[mt->lmargincur] = (size_t)ival;

return(1);

}

Line 507 pre_PP(DECL_ARGS)

Line 539 pre_PP(DECL_ARGS)

switch (n->type) {

case (MAN_BLOCK):

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

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

print_bvspace(p, n);

break;

default:

Line 529 pre_IP(DECL_ARGS)

Line 561 pre_IP(DECL_ARGS)

switch (n->type) {

case (MAN_BODY):

p->flags |= TERMP_NOLPAD;

p->flags |= TERMP_NOSPACE;

break;

case (MAN_HEAD):

Line 542 pre_IP(DECL_ARGS)

Line 573 pre_IP(DECL_ARGS)

return(1);

}

len = mt->lmargin;

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

ival = -1;

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

Line 563 pre_IP(DECL_ARGS)

Line 594 pre_IP(DECL_ARGS)

break;

/* Set the saved left-margin. */

mt->lmargin = (size_t)ival;

mt->lmargin[mt->lmargincur] = (size_t)ival;

savelit = MANT_LITERAL & mt->fl;

mt->fl &= ~MANT_LITERAL;

Line 600 post_IP(DECL_ARGS)

Line 631 post_IP(DECL_ARGS)

break;

case (MAN_BODY):

term_newln(p);

p->flags &= ~TERMP_NOLPAD;

break;

default:

break;

Line 621 pre_TP(DECL_ARGS)

Line 651 pre_TP(DECL_ARGS)

p->flags |= TERMP_NOBREAK;

break;

case (MAN_BODY):

p->flags |= TERMP_NOLPAD;

p->flags |= TERMP_NOSPACE;

break;

case (MAN_BLOCK):

Line 631 pre_TP(DECL_ARGS)

Line 660 pre_TP(DECL_ARGS)

return(1);

}

len = (size_t)mt->lmargin;

len = (size_t)mt->lmargin[mt->lmargincur];

ival = -1;

/* Calculate offset. */

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

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

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

if (nn->string && nn->parent->line == nn->line)

nn = nn->next;

if (nn && nn->next)

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

len = (size_t)ival;

}

switch (n->type) {

case (MAN_HEAD):

Line 663 pre_TP(DECL_ARGS)

Line 689 pre_TP(DECL_ARGS)

if (savelit)

mt->fl |= MANT_LITERAL;

if (ival >= 0)

mt->lmargin = (size_t)ival;

mt->lmargin[mt->lmargincur] = (size_t)ival;

return(0);

case (MAN_BODY):

Line 694 post_TP(DECL_ARGS)

Line 719 post_TP(DECL_ARGS)

break;

case (MAN_BODY):

term_newln(p);

p->flags &= ~TERMP_NOLPAD;

break;

default:

break;

Line 710 pre_SS(DECL_ARGS)

Line 734 pre_SS(DECL_ARGS)

switch (n->type) {

case (MAN_BLOCK):

mt->fl &= ~MANT_LITERAL;

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

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

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

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

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

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

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

Line 722 pre_SS(DECL_ARGS)

Line 746 pre_SS(DECL_ARGS)

break;

case (MAN_HEAD):

term_fontrepl(p, TERMFONT_BOLD);

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

p->offset = term_len(p, p->defindent/2);

break;

case (MAN_BODY):

p->offset = mt->offset;

Line 761 pre_SH(DECL_ARGS)

Line 785 pre_SH(DECL_ARGS)

switch (n->type) {

case (MAN_BLOCK):

mt->fl &= ~MANT_LITERAL;

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

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

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

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

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

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

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

Line 821 pre_RS(DECL_ARGS)

Line 845 pre_RS(DECL_ARGS)

break;

}

sz = term_len(p, INDENT);

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

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

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

sz = (size_t)ival;

mt->offset += sz;

p->offset = mt->offset;

p->rmargin = p->maxrmargin;

p->offset = mt->offset < p->rmargin ? mt->offset : p->rmargin;

if (++mt->lmarginsz < MAXMARGINS)

mt->lmargincur = mt->lmarginsz;

mt->lmargin[mt->lmargincur] = mt->lmargin[mt->lmargincur - 1];

return(1);

}

Line 850 post_RS(DECL_ARGS)

Line 879 post_RS(DECL_ARGS)

break;

}

sz = term_len(p, INDENT);

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

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

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

Line 858 post_RS(DECL_ARGS)

Line 887 post_RS(DECL_ARGS)

mt->offset = mt->offset < sz ? 0 : mt->offset - sz;

p->offset = mt->offset;

if (--mt->lmarginsz < MAXMARGINS)

mt->lmargincur = mt->lmarginsz;

}

static void

Line 888 print_man_node(DECL_ARGS)

Line 920 print_man_node(DECL_ARGS)

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

* more specific than this.

if (MANT_LITERAL & mt->fl &&

if (MANT_LITERAL & mt->fl && ! (TERMP_NOBREAK & p->flags) &&

(NULL == n->next ||

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

rm = p->rmargin;

Line 896 print_man_node(DECL_ARGS)

Line 928 print_man_node(DECL_ARGS)

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

p->flags |= TERMP_NOSPACE;

term_flushln(p);

p->flags &= ~TERMP_NOLPAD;

p->rmargin = rm;

p->maxrmargin = rmax;

}

Line 905 print_man_node(DECL_ARGS)

Line 936 print_man_node(DECL_ARGS)

p->flags |= TERMP_SENTENCE;

return;

case (MAN_EQN):

/*term_word(p, n->eqn->data);*/

term_eqn(p, n->eqn);

return;

case (MAN_TBL):

Line 954 print_man_nodelist(DECL_ARGS)

Line 985 print_man_nodelist(DECL_ARGS)

static void

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

{

char title[BUFSIZ];

size_t datelen;

const struct man_meta *meta;

meta = (const struct man_meta *)arg;

assert(meta->title);

assert(meta->msec);

assert(meta->date);

term_fontrepl(p, TERMFONT_NONE);

term_vspace(p);

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

* In the bottom right corner, use the source instead of

* the title.

if ( ! p->mdocstyle) {

term_vspace(p);

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

} else if (meta->source) {

strlcpy(title, meta->source, BUFSIZ);

} else {

title[0] = '\0';

}

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

/* Bottom left corner: manual source. */

p->flags |= TERMP_NOSPACE | TERMP_NOBREAK;

p->rmargin = p->maxrmargin - term_strlen(p, meta->date);

p->offset = 0;

p->rmargin = (p->maxrmargin - datelen + term_len(p, 1)) / 2;

/* term_strlen() can return zero. */

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

p->rmargin--;

if (meta->source)

term_word(p, meta->source);

if (meta->source)

term_word(p, "");

term_flushln(p);

p->flags |= TERMP_NOLPAD | TERMP_NOSPACE;

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

p->flags |= TERMP_NOSPACE;

p->offset = p->rmargin;

p->rmargin = p->maxrmargin;

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

p->flags &= ~TERMP_NOBREAK;

if (p->offset + datelen >= p->rmargin)

p->rmargin = p->offset + datelen;

term_word(p, meta->date);

term_flushln(p);

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

p->flags &= ~TERMP_NOBREAK;

p->flags |= TERMP_NOSPACE;

p->offset = p->rmargin;

p->rmargin = p->maxrmargin;

term_word(p, title);

term_flushln(p);

}

Line 996 print_man_head(struct termp *p, const void *arg)

Line 1056 print_man_head(struct termp *p, const void *arg)

const struct man_meta *m;

m = (const struct man_meta *)arg;

assert(m->title);

assert(m->msec);

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

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

* point we did so here.

p->rmargin = p->maxrmargin;

p->offset = 0;

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

if (m->vol)

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

else

buf[0] = '\0';

buflen = term_strlen(p, buf);

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

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

titlen = term_strlen(p, title);

p->flags |= TERMP_NOBREAK | TERMP_NOSPACE;

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;

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->maxrmargin - titlen : p->maxrmargin;

Line 1033 print_man_head(struct termp *p, const void *arg)

Line 1090 print_man_head(struct termp *p, const void *arg)

term_word(p, buf);

term_flushln(p);

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

p->flags &= ~TERMP_NOBREAK;

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);

}

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