mandoc/term_ascii.c - diff

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Diff for /mandoc/term_ascii.c between version 1.40 and 1.52

version 1.40, 2014/11/20 13:56:20

version 1.52, 2015/11/12 21:50:03

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

Line 35

#include "mandoc_aux.h"

#include "out.h"

#include "term.h"

#include "manconf.h"

#include "main.h"

static struct termp *ascii_init(enum termenc,

static struct termp *ascii_init(enum termenc, const struct manoutput *);

const struct mchars *, char *);

static int ascii_hspan(const struct termp *,

static double ascii_hspan(const struct termp *,

const struct roffsu *);

static size_t ascii_width(const struct termp *, int);

static void ascii_advance(struct termp *, size_t);

Line 47 static void ascii_begin(struct termp *);

static void ascii_end(struct termp *);

static void ascii_endline(struct termp *);

static void ascii_letter(struct termp *, int);

static void ascii_setwidth(struct termp *, int, size_t);

static void ascii_setwidth(struct termp *, int, int);

#if HAVE_WCHAR

static void locale_advance(struct termp *, size_t);

Line 58 static size_t locale_width(const struct termp *, in

static struct termp *

ascii_init(enum termenc enc, const struct mchars *mchars, char *outopts)

ascii_init(enum termenc enc, const struct manoutput *outopts)

{

const char *toks[5];

#if HAVE_WCHAR

char *v;

#endif

struct termp *p;

p = mandoc_calloc(1, sizeof(struct termp));

p->symtab = mchars;

p->line = 1;

p->tabwidth = 5;

p->defrmargin = p->lastrmargin = 78;

p->fontq = mandoc_reallocarray(NULL,

(p->fontsz = 8), sizeof(enum termfont));

p->fontq[0] = p->fontl = TERMFONT_NONE;

p->begin = ascii_begin;

p->end = ascii_end;

Line 84 ascii_init(enum termenc enc, const struct mchars *mcha

Line 88 ascii_init(enum termenc enc, const struct mchars *mcha

#if HAVE_WCHAR

if (TERMENC_ASCII != enc) {

* Do not change any of this to LC_ALL. It might break

* the formatting by subtly changing the behaviour of

* various functions, for example strftime(3). As a

* worst case, it might even cause buffer overflows.

v = TERMENC_LOCALE == enc ?

setlocale(LC_ALL, "") :

setlocale(LC_CTYPE, "") :

setlocale(LC_CTYPE, "en_US.UTF-8");

if (NULL != v && MB_CUR_MAX > 1) {

p->enc = enc;

Line 97 ascii_init(enum termenc enc, const struct mchars *mcha

Line 109 ascii_init(enum termenc enc, const struct mchars *mcha

}

#endif

toks[0] = "indent";

if (outopts->mdoc) {

toks[1] = "width";

p->mdocstyle = 1;

toks[2] = "mdoc";

p->defindent = 5;

toks[3] = "synopsis";

}

toks[4] = NULL;

if (outopts->indent)

p->defindent = outopts->indent;

if (outopts->width)

p->defrmargin = outopts->width;

if (outopts->synopsisonly)

p->synopsisonly = 1;

while (outopts && *outopts)

return p;

switch (getsubopt(&outopts, UNCONST(toks), &v)) {

case 0:

p->defindent = (size_t)atoi(v);

break;

case 1:

p->defrmargin = (size_t)atoi(v);

break;

case 2:

* Temporary, undocumented mode

* to imitate mdoc(7) output style.

p->mdocstyle = 1;

p->defindent = 5;

break;

case 3:

p->synopsisonly = 1;

break;

default:

break;

}

/* Enforce a lower boundary. */

if (p->defrmargin < 58)

p->defrmargin = 58;

return(p);

}

void *

ascii_alloc(const struct mchars *mchars, char *outopts)

ascii_alloc(const struct manoutput *outopts)

{

return(ascii_init(TERMENC_ASCII, mchars, outopts));

return ascii_init(TERMENC_ASCII, outopts);

}

void *

utf8_alloc(const struct mchars *mchars, char *outopts)

utf8_alloc(const struct manoutput *outopts)

{

return(ascii_init(TERMENC_UTF8, mchars, outopts));

return ascii_init(TERMENC_UTF8, outopts);

}

void *

locale_alloc(const struct mchars *mchars, char *outopts)

locale_alloc(const struct manoutput *outopts)

{

return(ascii_init(TERMENC_LOCALE, mchars, outopts));

return ascii_init(TERMENC_LOCALE, outopts);

}

static void

ascii_setwidth(struct termp *p, int iop, size_t width)

ascii_setwidth(struct termp *p, int iop, int width)

{

width /= 24;

p->rmargin = p->defrmargin;

if (iop > 0)

p->defrmargin += width;

else if (iop == 0)

p->defrmargin = width ? width : p->lastrmargin;

p->defrmargin = width ? (size_t)width : p->lastrmargin;

else if (p->defrmargin > width)

else if (p->defrmargin > (size_t)width)

p->defrmargin -= width;

else

p->defrmargin = 0;

Line 171 ascii_setwidth(struct termp *p, int iop, size_t width)

Line 162 ascii_setwidth(struct termp *p, int iop, size_t width)

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

}

void

ascii_sepline(void *arg)

{

struct termp *p;

size_t i;

p = (struct termp *)arg;

p->line += 3;

putchar('\n');

for (i = 0; i < p->defrmargin; i++)

putchar('-');

putchar('\n');

}

static size_t

ascii_width(const struct termp *p, int c)

{

return(1);

return 1;

}

void

Line 210 static void

Line 216 static void

ascii_endline(struct termp *p)

{

p->line++;

putchar('\n');

}

Line 222 ascii_advance(struct termp *p, size_t len)

Line 229 ascii_advance(struct termp *p, size_t len)

putchar(' ');

}

static double

static int

ascii_hspan(const struct termp *p, const struct roffsu *su)

{

double r;

* Approximate based on character width.

* None of these will be actually correct given that an inch on

* the screen depends on character size, terminal, etc., etc.

switch (su->unit) {

case SCALE_BU:

r = su->scale * 10.0 / 240.0;

r = su->scale;

break;

case SCALE_CM:

r = su->scale * 10.0 / 2.54;

r = su->scale * 240.0 / 2.54;

break;

case SCALE_FS:

r = su->scale * 2730.666;

r = su->scale * 65536.0;

break;

case SCALE_IN:

r = su->scale * 10.0;

r = su->scale * 240.0;

break;

case SCALE_MM:

r = su->scale / 100.0;

r = su->scale * 0.24;

break;

case SCALE_VS:

case SCALE_PC:

r = su->scale * 10.0 / 6.0;

r = su->scale * 40.0;

break;

case SCALE_PT:

r = su->scale * 10.0 / 72.0;

r = su->scale * 10.0 / 3.0;

break;

case SCALE_VS:

r = su->scale * 2.0 - 1.0;

break;

case SCALE_EN:

/* FALLTHROUGH */

case SCALE_EM:

r = su->scale;

r = su->scale * 24.0;

break;

default:

abort();

/* NOTREACHED */

}

return r > 0.0 ? r + 0.01 : r - 0.01;

return(r);

}

const char *

Line 342 ascii_uc2str(int uc)

Line 339 ascii_uc2str(int uc)

assert(uc >= 0);

if ((size_t)uc < sizeof(tab)/sizeof(tab[0]))

return(tab[uc]);

return tab[uc];

return(mchars_uc2str(uc));

return mchars_uc2str(uc);

}

#if HAVE_WCHAR

Line 357 locale_width(const struct termp *p, int c)

Line 354 locale_width(const struct termp *p, int c)

rc = wcwidth(c);

if (rc < 0)

rc = 0;

return(rc);

return rc;

}

static void

Line 373 static void

Line 370 static void

locale_endline(struct termp *p)

{

p->line++;

putwchar(L'\n');

}

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