term_ps.c revision 95c635efb7c3b86efc493e0447eaec7aecca3f0f
/* $Id: term_ps.c,v 1.54 2011/10/16 12:20:34 schwarze Exp $ */
/*
* Copyright (c) 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
*
* 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 <assert.h>
#include <stdarg.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <unistd.h>
#include "mandoc.h"
#include "out.h"
#include "main.h"
#include "term.h"
/* These work the buffer used by the header and footer. */
#define PS_BUFSLOP 128
/* Convert PostScript point "x" to an AFM unit. */
#define PNT2AFM(p, x) /* LINTED */ \
/* Convert an AFM unit "x" to a PostScript points */
#define AFM2PNT(p, x) /* LINTED */ \
struct glyph {
unsigned short wx; /* WX in AFM */
};
struct font {
const char *name; /* FontName in AFM */
};
struct termp_ps {
int flags;
char *psmarg; /* margin buf */
char last; /* character buffer */
};
const struct roffsu *);
static void ps_closepage(struct termp *);
static void ps_endline(struct termp *);
static void ps_pletter(struct termp *, int);
static void ps_putchar(struct termp *, char);
static struct termp *pspdf_alloc(char *);
/*
* normal (roman). The following table hard-codes the font metrics for
* ASCII, i.e., 32--127.
*/
{ "Times-Roman", {
{ 250 },
{ 333 },
{ 408 },
{ 500 },
{ 500 },
{ 833 },
{ 778 },
{ 333 },
{ 333 },
{ 333 },
{ 500 },
{ 564 },
{ 250 },
{ 333 },
{ 250 },
{ 278 },
{ 500 },
{ 500 },
{ 500 },
{ 500 },
{ 500 },
{ 500 },
{ 500 },
{ 500 },
{ 500 },
{ 500 },
{ 278 },
{ 278 },
{ 564 },
{ 564 },
{ 564 },
{ 444 },
{ 921 },
{ 722 },
{ 667 },
{ 667 },
{ 722 },
{ 611 },
{ 556 },
{ 722 },
{ 722 },
{ 333 },
{ 389 },
{ 722 },
{ 611 },
{ 889 },
{ 722 },
{ 722 },
{ 556 },
{ 722 },
{ 667 },
{ 556 },
{ 611 },
{ 722 },
{ 722 },
{ 944 },
{ 722 },
{ 722 },
{ 611 },
{ 333 },
{ 278 },
{ 333 },
{ 469 },
{ 500 },
{ 333 },
{ 444 },
{ 500 },
{ 444 },
{ 500},
{ 444},
{ 333},
{ 500},
{ 500},
{ 278},
{ 278},
{ 500},
{ 278},
{ 778},
{ 500},
{ 500},
{ 500},
{ 500},
{ 333},
{ 389},
{ 278},
{ 500},
{ 500},
{ 722},
{ 500},
{ 500},
{ 444},
{ 480},
{ 200},
{ 480},
{ 541},
} },
{ "Times-Bold", {
{ 250 },
{ 333 },
{ 555 },
{ 500 },
{ 500 },
{ 1000 },
{ 833 },
{ 333 },
{ 333 },
{ 333 },
{ 500 },
{ 570 },
{ 250 },
{ 333 },
{ 250 },
{ 278 },
{ 500 },
{ 500 },
{ 500 },
{ 500 },
{ 500 },
{ 500 },
{ 500 },
{ 500 },
{ 500 },
{ 500 },
{ 333 },
{ 333 },
{ 570 },
{ 570 },
{ 570 },
{ 500 },
{ 930 },
{ 722 },
{ 667 },
{ 722 },
{ 722 },
{ 667 },
{ 611 },
{ 778 },
{ 778 },
{ 389 },
{ 500 },
{ 778 },
{ 667 },
{ 944 },
{ 722 },
{ 778 },
{ 611 },
{ 778 },
{ 722 },
{ 556 },
{ 667 },
{ 722 },
{ 722 },
{ 1000 },
{ 722 },
{ 722 },
{ 667 },
{ 333 },
{ 278 },
{ 333 },
{ 581 },
{ 500 },
{ 333 },
{ 500 },
{ 556 },
{ 444 },
{ 556 },
{ 444 },
{ 333 },
{ 500 },
{ 556 },
{ 278 },
{ 333 },
{ 556 },
{ 278 },
{ 833 },
{ 556 },
{ 500 },
{ 556 },
{ 556 },
{ 444 },
{ 389 },
{ 333 },
{ 556 },
{ 500 },
{ 722 },
{ 500 },
{ 500 },
{ 444 },
{ 394 },
{ 220 },
{ 394 },
{ 520 },
} },
{ "Times-Italic", {
{ 250 },
{ 333 },
{ 420 },
{ 500 },
{ 500 },
{ 833 },
{ 778 },
{ 333 },
{ 333 },
{ 333 },
{ 500 },
{ 675 },
{ 250 },
{ 333 },
{ 250 },
{ 278 },
{ 500 },
{ 500 },
{ 500 },
{ 500 },
{ 500 },
{ 500 },
{ 500 },
{ 500 },
{ 500 },
{ 500 },
{ 333 },
{ 333 },
{ 675 },
{ 675 },
{ 675 },
{ 500 },
{ 920 },
{ 611 },
{ 611 },
{ 667 },
{ 722 },
{ 611 },
{ 611 },
{ 722 },
{ 722 },
{ 333 },
{ 444 },
{ 667 },
{ 556 },
{ 833 },
{ 667 },
{ 722 },
{ 611 },
{ 722 },
{ 611 },
{ 500 },
{ 556 },
{ 722 },
{ 611 },
{ 833 },
{ 611 },
{ 556 },
{ 556 },
{ 389 },
{ 278 },
{ 389 },
{ 422 },
{ 500 },
{ 333 },
{ 500 },
{ 500 },
{ 444 },
{ 500 },
{ 444 },
{ 278 },
{ 500 },
{ 500 },
{ 278 },
{ 278 },
{ 444 },
{ 278 },
{ 722 },
{ 500 },
{ 500 },
{ 500 },
{ 500 },
{ 389 },
{ 389 },
{ 278 },
{ 500 },
{ 444 },
{ 667 },
{ 444 },
{ 444 },
{ 389 },
{ 400 },
{ 275 },
{ 400 },
{ 541 },
} },
};
void *
{
struct termp *p;
p->type = TERMTYPE_PDF;
return(p);
}
void *
{
struct termp *p;
p->type = TERMTYPE_PS;
return(p);
}
static struct termp *
pspdf_alloc(char *outopts)
{
struct termp *p;
const char *toks[2];
const char *pp;
char *v;
p->enc = TERMENC_ASCII;
p->advance = ps_advance;
p->endline = ps_endline;
toks[0] = "paper";
case (0):
pp = v;
break;
default:
break;
}
/* Default to US letter (millimetres). */
pagex = 216;
pagey = 279;
/*
* The ISO-269 paper sizes can be calculated automatically, but
* it would require bringing in -lm for pow() and I'd rather not
* do that. So just do it the easy way for now. Since this
* only happens once, I'm not terribly concerned.
*/
pagex = 297;
pagey = 420;
pagex = 210;
pagey = 297;
pagex = 148;
pagey = 210;
pagex = 216;
pagey = 356;
}
/*
* This MUST be defined before any PNT2AFM or AFM2PNT
* calculations occur.
*/
/* Remember millimetres -> AFM units. */
/* Margins are 1/9 the page x and y. */
marginx = /* LINTED */
marginy = /* LINTED */
/* Line-height is 1.4em. */
return(p);
}
void
pspdf_free(void *arg)
{
struct termp *p;
term_free(p);
}
static void
{
/*
* If we're running in regular mode, then pipe directly into
* vprintf(). If we're processing margins, then push the data
* into our growable margin buffer.
*/
return;
}
/*
* XXX: I assume that the in-margin print won't exceed
* PS_BUFSLOP (128 bytes), which is reasonable but still an
* assumption that will cause pukeage if it's not the case.
*/
ps_growbuf(p, PS_BUFSLOP);
}
static void
ps_putchar(struct termp *p, char c)
{
int pos;
/* See ps_printf(). */
/* LINTED */
putchar(c);
return;
}
ps_growbuf(p, 2);
}
static void
{
exit((int)MANDOCLEVEL_SYSERR);
}
}
}
static void
ps_closepage(struct termp *p)
{
int i;
/*
* Close out a page that we've already flushed to output. In
* PostScript, we simply note that the page must be showed. In
* PDF, we must now create the Length, Resource, and Page node
* for the page contents.
*/
if (TERMTYPE_PS != p->type) {
ps_printf(p, "ET\n");
ps_printf(p, "endstream\nendobj\n");
/* Length of content. */
/* Resource for content. */
ps_printf(p, "/Font <<\n");
for (i = 0; i < (int)TERMFONT__MAX; i++)
ps_printf(p, ">>\n>>\n");
/* Page node. */
ps_printf(p, "<<\n");
ps_printf(p, "/Type /Page\n");
ps_printf(p, "/Parent 2 0 R\n");
ps_printf(p, ">>\nendobj\n");
} else
ps_printf(p, "showpage\n");
}
/* ARGSUSED */
static void
{
/*
* At the end of the file, do one last showpage. This is the
* same behaviour as groff(1) and works for multiple pages as
* well as just one.
*/
ps_closepage(p);
}
if (TERMTYPE_PS == p->type) {
ps_printf(p, "%%%%Trailer\n");
ps_printf(p, "%%%%EOF\n");
return;
}
pdf_obj(p, 2);
ps_printf(p, "/MediaBox [0 0 %zu %zu]\n",
ps_printf(p, "/Kids [");
ps_printf(p, "]\n>>\nendobj\n");
ps_printf(p, "<<\n");
ps_printf(p, "/Type /Catalog\n");
ps_printf(p, "/Pages 2 0 R\n");
ps_printf(p, ">>\n");
ps_printf(p, "xref\n");
ps_printf(p, "0000000000 65535 f \n");
for (i = 0; i < base; i++)
ps_printf(p, "%.10zu 00000 n \n",
ps_printf(p, "trailer\n");
ps_printf(p, "<<\n");
ps_printf(p, "/Info 1 0 R\n");
ps_printf(p, ">>\n");
ps_printf(p, "startxref\n");
ps_printf(p, "%%%%EOF\n");
}
static void
{
time_t t;
int i;
/*
* Print margins into margin buffer. Nothing gets output to the
* screen yet, so we don't need to initialise the primary state.
*/
}
/*p->ps->pdfbytes = 0;*/
ps_setfont(p, TERMFONT_NONE);
(*p->endline)(p);
(*p->endline)(p);
/*
* Print header and initialise page state. Following this,
* stuff gets printed to the screen, so make sure we're sane.
*/
if (TERMTYPE_PS == p->type) {
ps_printf(p, "%%!PS-Adobe-3.0\n");
ps_printf(p, "%%%%DocumentData: Clean7Bit\n");
ps_printf(p, "%%%%Orientation: Portrait\n");
ps_printf(p, "%%%%Pages: (atend)\n");
ps_printf(p, "%%%%PageOrder: Ascend\n");
ps_printf(p, "%%%%DocumentMedia: "
"Default %zu %zu 0 () ()\n",
ps_printf(p, "%%%%DocumentNeededResources: font");
for (i = 0; i < (int)TERMFONT__MAX; i++)
ps_printf(p, "\n%%%%EndComments\n");
} else {
ps_printf(p, "%%PDF-1.1\n");
pdf_obj(p, 1);
ps_printf(p, "<<\n");
ps_printf(p, ">>\n");
ps_printf(p, "endobj\n");
for (i = 0; i < (int)TERMFONT__MAX; i++) {
ps_printf(p, "<<\n");
ps_printf(p, "/Type /Font\n");
ps_printf(p, "/Subtype /Type1\n");
ps_printf(p, "/Name /F%zu\n", i);
ps_printf(p, ">>\n");
}
}
ps_setfont(p, TERMFONT_NONE);
}
static void
ps_pletter(struct termp *p, int c)
{
int f;
/*
* If we haven't opened a page context, then output that we're
* in a new page and make sure the font is correctly set.
*/
if (TERMTYPE_PS == p->type) {
ps_printf(p, "%%%%Page: %zu %zu\n",
ps_printf(p, "/%s %zu selectfont\n",
} else {
ps_printf(p, "<<\n");
ps_printf(p, "/Length %zu 0 R\n",
ps_printf(p, ">>\nstream\n");
}
}
/*
* If we're not in a PostScript "word" context, then open one
* now at the current cursor.
*/
if (TERMTYPE_PS != p->type) {
ps_printf(p, "BT\n/F%d %zu Tf\n",
ps_printf(p, "%.3f %.3f Td\n(",
} else
ps_printf(p, "%.3f %.3f moveto\n(",
}
/*
* We need to escape these characters as per the PostScript
* specification. We would also escape non-graphable characters
* (like tabs), but none of them would get to this point and
* it's superfluous to abort() on them.
*/
switch (c) {
case ('('):
/* FALLTHROUGH */
case (')'):
/* FALLTHROUGH */
case ('\\'):
ps_putchar(p, '\\');
break;
default:
break;
}
/* Write the character and adjust where we are on the page. */
ps_putchar(p, ' ');
return;
}
ps_putchar(p, (char)c);
c -= 32;
}
static void
{
/*
* Spit out that we're exiting a word context (this is a
* "partial close" because we don't check the last-char buffer
* or anything).
*/
return;
if (TERMTYPE_PS != p->type) {
ps_printf(p, ") Tj\nET\n");
} else
ps_printf(p, ") show\n");
}
static void
{
/*
* Strong closure: if we have a last-char, spit it out after
* checking that we're in the right font mode. This will of
* course open a new scope, if applicable.
*
* Following this, close out any scope that's open.
*/
ps_pclose(p);
ps_setfont(p, TERMFONT_NONE);
}
}
return;
ps_pclose(p);
}
static void
{
char cc, c;
/* LINTED */
/*
* State machine dictates whether to buffer the last character
* or not. Basically, encoded words are detected by checking if
* we're an "8" and switching on the buffer. Then we put "8" in
* our buffer, and on the next charater, flush both character
* and buffer. Thus, "regular" words are detected by having a
* regular character and a regular buffer character.
*/
assert(8 != c);
return;
assert(8 != c);
} else if (8 == c) {
ps_pclose(p);
ps_setfont(p, TERMFONT_UNDER);
}
ps_pclose(p);
ps_setfont(p, TERMFONT_BOLD);
}
return;
} else {
ps_pclose(p);
ps_setfont(p, TERMFONT_NONE);
}
c = cc;
}
ps_pletter(p, c);
}
static void
{
/*
* Advance some spaces. This can probably be made smarter,
* i.e., to have multiple space-separated words in the same
* scope, but this is easier: just close out the current scope
* and readjust our column settings.
*/
ps_fclose(p);
}
static void
ps_endline(struct termp *p)
{
/* Close out any scopes we have open: we're at eoln. */
ps_fclose(p);
/*
* If we're in the margin, don't try to recalculate our current
* row. XXX: if the column tries to be fancy with multiple
* lines, we'll do nasty stuff.
*/
return;
/* Left-justify. */
/* If we haven't printed anything, return. */
return;
/*
* Put us down a line. If we're at the page bottom, spit out a
* showpage and restart our row.
*/
return;
}
ps_closepage(p);
}
static void
{
assert(f < TERMFONT__MAX);
/*
* If we're still at the top of the page, let the font-setting
* be delayed until we actually have stuff to print.
*/
return;
if (TERMTYPE_PS == p->type)
ps_printf(p, "/%s %zu selectfont\n",
else
ps_printf(p, "/F%d %zu Tf\n",
(int)f,
}
/* ARGSUSED */
static size_t
{
c -= 32;
}
static double
{
double r;
/*
* All of these measurements are derived by converting from the
* native measurement to AFM units.
*/
case (SCALE_CM):
break;
case (SCALE_IN):
break;
case (SCALE_PC):
break;
case (SCALE_PT):
break;
case (SCALE_EM):
break;
case (SCALE_MM):
break;
case (SCALE_EN):
break;
case (SCALE_VS):
break;
default:
break;
}
return(r);
}
static void
{
return;
if (sz < PS_BUFSLOP)
sz = PS_BUFSLOP;
}