1186 lines
23 KiB
C
1186 lines
23 KiB
C
/* $Id: term_ps.c,v 1.54 2011/10/16 12:20:34 schwarze Exp $ */
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/*
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* Copyright (c) 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <sys/types.h>
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#include <assert.h>
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#include <stdarg.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <time.h>
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#include <unistd.h>
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#include "mandoc.h"
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#include "out.h"
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#include "main.h"
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#include "term.h"
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/* These work the buffer used by the header and footer. */
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#define PS_BUFSLOP 128
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/* Convert PostScript point "x" to an AFM unit. */
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#define PNT2AFM(p, x) /* LINTED */ \
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(size_t)((double)(x) * (1000.0 / (double)(p)->ps->scale))
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/* Convert an AFM unit "x" to a PostScript points */
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#define AFM2PNT(p, x) /* LINTED */ \
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((double)(x) / (1000.0 / (double)(p)->ps->scale))
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struct glyph {
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unsigned short wx; /* WX in AFM */
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};
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struct font {
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const char *name; /* FontName in AFM */
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#define MAXCHAR 95 /* total characters we can handle */
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struct glyph gly[MAXCHAR]; /* glyph metrics */
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};
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struct termp_ps {
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int flags;
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#define PS_INLINE (1 << 0) /* we're in a word */
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#define PS_MARGINS (1 << 1) /* we're in the margins */
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#define PS_NEWPAGE (1 << 2) /* new page, no words yet */
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size_t pscol; /* visible column (AFM units) */
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size_t psrow; /* visible row (AFM units) */
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char *psmarg; /* margin buf */
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size_t psmargsz; /* margin buf size */
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size_t psmargcur; /* cur index in margin buf */
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char last; /* character buffer */
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enum termfont lastf; /* last set font */
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size_t scale; /* font scaling factor */
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size_t pages; /* number of pages shown */
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size_t lineheight; /* line height (AFM units) */
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size_t top; /* body top (AFM units) */
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size_t bottom; /* body bottom (AFM units) */
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size_t height; /* page height (AFM units */
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size_t width; /* page width (AFM units) */
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size_t left; /* body left (AFM units) */
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size_t header; /* header pos (AFM units) */
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size_t footer; /* footer pos (AFM units) */
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size_t pdfbytes; /* current output byte */
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size_t pdflastpg; /* byte of last page mark */
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size_t pdfbody; /* start of body object */
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size_t *pdfobjs; /* table of object offsets */
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size_t pdfobjsz; /* size of pdfobjs */
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};
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static double ps_hspan(const struct termp *,
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const struct roffsu *);
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static size_t ps_width(const struct termp *, int);
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static void ps_advance(struct termp *, size_t);
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static void ps_begin(struct termp *);
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static void ps_closepage(struct termp *);
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static void ps_end(struct termp *);
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static void ps_endline(struct termp *);
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static void ps_fclose(struct termp *);
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static void ps_growbuf(struct termp *, size_t);
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static void ps_letter(struct termp *, int);
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static void ps_pclose(struct termp *);
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static void ps_pletter(struct termp *, int);
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static void ps_printf(struct termp *, const char *, ...);
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static void ps_putchar(struct termp *, char);
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static void ps_setfont(struct termp *, enum termfont);
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static struct termp *pspdf_alloc(char *);
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static void pdf_obj(struct termp *, size_t);
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/*
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* We define, for the time being, three fonts: bold, oblique/italic, and
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* normal (roman). The following table hard-codes the font metrics for
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* ASCII, i.e., 32--127.
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*/
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static const struct font fonts[TERMFONT__MAX] = {
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{ "Times-Roman", {
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{ 250 },
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{ 333 },
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{ 408 },
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{ 500 },
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{ 500 },
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{ 833 },
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{ 778 },
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{ 333 },
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{ 333 },
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{ 333 },
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{ 500 },
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{ 564 },
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{ 250 },
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{ 333 },
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{ 250 },
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{ 278 },
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{ 500 },
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{ 500 },
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{ 500 },
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{ 500 },
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{ 500 },
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{ 500 },
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{ 500 },
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{ 500 },
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{ 500 },
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{ 500 },
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{ 278 },
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{ 278 },
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{ 564 },
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{ 564 },
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{ 564 },
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{ 444 },
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{ 921 },
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{ 722 },
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{ 667 },
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{ 667 },
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{ 722 },
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{ 611 },
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{ 556 },
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{ 722 },
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{ 722 },
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{ 333 },
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{ 389 },
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{ 722 },
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{ 611 },
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{ 889 },
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{ 722 },
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{ 722 },
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{ 556 },
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{ 722 },
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{ 667 },
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{ 556 },
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{ 611 },
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{ 722 },
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{ 722 },
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{ 944 },
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{ 722 },
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{ 722 },
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{ 611 },
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{ 333 },
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{ 278 },
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{ 333 },
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{ 469 },
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{ 500 },
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{ 333 },
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{ 444 },
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{ 500 },
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{ 444 },
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{ 500},
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{ 444},
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{ 333},
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{ 500},
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{ 500},
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{ 278},
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{ 278},
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{ 500},
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{ 278},
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{ 778},
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{ 500},
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{ 500},
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{ 500},
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{ 500},
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{ 333},
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{ 389},
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{ 278},
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{ 500},
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{ 500},
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{ 722},
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{ 500},
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{ 500},
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{ 444},
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{ 480},
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{ 200},
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{ 480},
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{ 541},
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} },
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{ "Times-Bold", {
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{ 250 },
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{ 333 },
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{ 555 },
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{ 500 },
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{ 500 },
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{ 1000 },
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{ 833 },
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{ 333 },
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{ 333 },
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{ 333 },
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{ 500 },
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{ 570 },
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{ 250 },
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{ 333 },
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{ 250 },
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{ 278 },
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{ 500 },
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{ 500 },
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{ 500 },
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{ 500 },
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{ 500 },
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{ 500 },
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{ 500 },
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{ 500 },
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{ 500 },
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{ 500 },
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{ 333 },
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{ 333 },
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{ 570 },
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{ 570 },
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{ 570 },
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{ 500 },
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{ 930 },
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{ 722 },
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{ 667 },
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{ 722 },
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{ 722 },
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{ 667 },
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{ 611 },
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{ 778 },
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{ 778 },
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{ 389 },
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{ 500 },
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{ 778 },
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{ 667 },
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{ 944 },
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{ 722 },
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{ 778 },
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{ 611 },
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{ 778 },
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{ 722 },
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{ 556 },
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{ 667 },
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{ 722 },
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{ 722 },
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{ 1000 },
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{ 722 },
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{ 722 },
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{ 667 },
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{ 333 },
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{ 278 },
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{ 333 },
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{ 581 },
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{ 500 },
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{ 333 },
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{ 500 },
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{ 556 },
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{ 444 },
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{ 556 },
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{ 444 },
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{ 333 },
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{ 500 },
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{ 556 },
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{ 278 },
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{ 333 },
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{ 556 },
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{ 278 },
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{ 833 },
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{ 556 },
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{ 500 },
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{ 556 },
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{ 556 },
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{ 444 },
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{ 389 },
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{ 333 },
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{ 556 },
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{ 500 },
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{ 722 },
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{ 500 },
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{ 500 },
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{ 444 },
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{ 394 },
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{ 220 },
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{ 394 },
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{ 520 },
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} },
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{ "Times-Italic", {
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{ 250 },
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{ 333 },
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{ 420 },
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{ 500 },
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{ 500 },
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{ 833 },
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{ 778 },
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{ 333 },
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{ 333 },
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{ 333 },
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{ 500 },
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{ 675 },
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{ 250 },
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{ 333 },
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{ 250 },
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{ 278 },
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{ 500 },
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{ 500 },
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{ 500 },
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{ 500 },
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{ 500 },
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{ 500 },
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{ 500 },
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{ 500 },
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{ 500 },
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{ 500 },
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{ 333 },
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{ 333 },
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{ 675 },
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{ 675 },
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{ 675 },
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{ 500 },
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{ 920 },
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{ 611 },
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{ 611 },
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{ 667 },
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{ 722 },
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{ 611 },
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{ 611 },
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{ 722 },
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{ 722 },
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{ 333 },
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{ 444 },
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{ 667 },
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{ 556 },
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{ 833 },
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{ 667 },
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{ 722 },
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{ 611 },
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{ 722 },
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{ 611 },
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{ 500 },
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{ 556 },
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{ 722 },
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{ 611 },
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{ 833 },
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{ 611 },
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{ 556 },
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{ 556 },
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{ 389 },
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{ 278 },
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{ 389 },
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{ 422 },
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{ 500 },
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{ 333 },
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{ 500 },
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{ 500 },
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{ 444 },
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{ 500 },
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{ 444 },
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{ 278 },
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{ 500 },
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{ 500 },
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{ 278 },
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{ 278 },
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{ 444 },
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{ 278 },
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{ 722 },
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{ 500 },
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{ 500 },
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{ 500 },
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{ 500 },
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{ 389 },
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{ 389 },
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{ 278 },
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{ 500 },
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{ 444 },
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{ 667 },
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{ 444 },
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{ 444 },
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{ 389 },
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{ 400 },
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{ 275 },
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{ 400 },
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{ 541 },
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} },
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};
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void *
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pdf_alloc(char *outopts)
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{
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struct termp *p;
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if (NULL != (p = pspdf_alloc(outopts)))
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p->type = TERMTYPE_PDF;
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return(p);
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}
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void *
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ps_alloc(char *outopts)
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{
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struct termp *p;
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if (NULL != (p = pspdf_alloc(outopts)))
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p->type = TERMTYPE_PS;
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return(p);
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}
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static struct termp *
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pspdf_alloc(char *outopts)
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{
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struct termp *p;
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unsigned int pagex, pagey;
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size_t marginx, marginy, lineheight;
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const char *toks[2];
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const char *pp;
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char *v;
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p = mandoc_calloc(1, sizeof(struct termp));
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p->enc = TERMENC_ASCII;
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p->ps = mandoc_calloc(1, sizeof(struct termp_ps));
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p->advance = ps_advance;
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p->begin = ps_begin;
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p->end = ps_end;
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p->endline = ps_endline;
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p->hspan = ps_hspan;
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p->letter = ps_letter;
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p->width = ps_width;
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toks[0] = "paper";
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toks[1] = NULL;
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pp = NULL;
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while (outopts && *outopts)
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switch (getsubopt(&outopts, UNCONST(toks), &v)) {
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case (0):
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pp = v;
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break;
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default:
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break;
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}
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/* Default to US letter (millimetres). */
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pagex = 216;
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pagey = 279;
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/*
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* The ISO-269 paper sizes can be calculated automatically, but
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* it would require bringing in -lm for pow() and I'd rather not
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* do that. So just do it the easy way for now. Since this
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* only happens once, I'm not terribly concerned.
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*/
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if (pp && strcasecmp(pp, "letter")) {
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if (0 == strcasecmp(pp, "a3")) {
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pagex = 297;
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pagey = 420;
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} else if (0 == strcasecmp(pp, "a4")) {
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pagex = 210;
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pagey = 297;
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} else if (0 == strcasecmp(pp, "a5")) {
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pagex = 148;
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pagey = 210;
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} else if (0 == strcasecmp(pp, "legal")) {
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pagex = 216;
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pagey = 356;
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} else if (2 != sscanf(pp, "%ux%u", &pagex, &pagey))
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fprintf(stderr, "%s: Unknown paper\n", pp);
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}
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/*
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* This MUST be defined before any PNT2AFM or AFM2PNT
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* calculations occur.
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*/
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p->ps->scale = 11;
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/* Remember millimetres -> AFM units. */
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pagex = PNT2AFM(p, ((double)pagex * 2.834));
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pagey = PNT2AFM(p, ((double)pagey * 2.834));
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/* Margins are 1/9 the page x and y. */
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marginx = /* LINTED */
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(size_t)((double)pagex / 9.0);
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marginy = /* LINTED */
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(size_t)((double)pagey / 9.0);
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/* Line-height is 1.4em. */
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lineheight = PNT2AFM(p, ((double)p->ps->scale * 1.4));
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p->ps->width = (size_t)pagex;
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p->ps->height = (size_t)pagey;
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p->ps->header = pagey - (marginy / 2) - (lineheight / 2);
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p->ps->top = pagey - marginy;
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p->ps->footer = (marginy / 2) - (lineheight / 2);
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p->ps->bottom = marginy;
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p->ps->left = marginx;
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p->ps->lineheight = lineheight;
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p->defrmargin = pagex - (marginx * 2);
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return(p);
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}
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void
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pspdf_free(void *arg)
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{
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struct termp *p;
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p = (struct termp *)arg;
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if (p->ps->psmarg)
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free(p->ps->psmarg);
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if (p->ps->pdfobjs)
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free(p->ps->pdfobjs);
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free(p->ps);
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term_free(p);
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}
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static void
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ps_printf(struct termp *p, const char *fmt, ...)
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{
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va_list ap;
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int pos, len;
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va_start(ap, fmt);
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/*
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* If we're running in regular mode, then pipe directly into
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* vprintf(). If we're processing margins, then push the data
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* into our growable margin buffer.
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*/
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if ( ! (PS_MARGINS & p->ps->flags)) {
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len = vprintf(fmt, ap);
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va_end(ap);
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p->ps->pdfbytes += /* LINTED */
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len < 0 ? 0 : (size_t)len;
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return;
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}
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|
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/*
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* XXX: I assume that the in-margin print won't exceed
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* PS_BUFSLOP (128 bytes), which is reasonable but still an
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* assumption that will cause pukeage if it's not the case.
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*/
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ps_growbuf(p, PS_BUFSLOP);
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pos = (int)p->ps->psmargcur;
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vsnprintf(&p->ps->psmarg[pos], PS_BUFSLOP, fmt, ap);
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va_end(ap);
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p->ps->psmargcur = strlen(p->ps->psmarg);
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}
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static void
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ps_putchar(struct termp *p, char c)
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{
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int pos;
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|
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/* See ps_printf(). */
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|
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if ( ! (PS_MARGINS & p->ps->flags)) {
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/* LINTED */
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putchar(c);
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p->ps->pdfbytes++;
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return;
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}
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|
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ps_growbuf(p, 2);
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pos = (int)p->ps->psmargcur++;
|
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p->ps->psmarg[pos++] = c;
|
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p->ps->psmarg[pos] = '\0';
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}
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|
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static void
|
|
pdf_obj(struct termp *p, size_t obj)
|
|
{
|
|
|
|
assert(obj > 0);
|
|
|
|
if ((obj - 1) >= p->ps->pdfobjsz) {
|
|
p->ps->pdfobjsz = obj + 128;
|
|
p->ps->pdfobjs = realloc
|
|
(p->ps->pdfobjs,
|
|
p->ps->pdfobjsz * sizeof(size_t));
|
|
if (NULL == p->ps->pdfobjs) {
|
|
perror(NULL);
|
|
exit((int)MANDOCLEVEL_SYSERR);
|
|
}
|
|
}
|
|
|
|
p->ps->pdfobjs[(int)obj - 1] = p->ps->pdfbytes;
|
|
ps_printf(p, "%zu 0 obj\n", obj);
|
|
}
|
|
|
|
|
|
static void
|
|
ps_closepage(struct termp *p)
|
|
{
|
|
int i;
|
|
size_t len, base;
|
|
|
|
/*
|
|
* 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.
|
|
*/
|
|
|
|
assert(p->ps->psmarg && p->ps->psmarg[0]);
|
|
ps_printf(p, "%s", p->ps->psmarg);
|
|
|
|
if (TERMTYPE_PS != p->type) {
|
|
ps_printf(p, "ET\n");
|
|
|
|
len = p->ps->pdfbytes - p->ps->pdflastpg;
|
|
base = p->ps->pages * 4 + p->ps->pdfbody;
|
|
|
|
ps_printf(p, "endstream\nendobj\n");
|
|
|
|
/* Length of content. */
|
|
pdf_obj(p, base + 1);
|
|
ps_printf(p, "%zu\nendobj\n", len);
|
|
|
|
/* Resource for content. */
|
|
pdf_obj(p, base + 2);
|
|
ps_printf(p, "<<\n/ProcSet [/PDF /Text]\n");
|
|
ps_printf(p, "/Font <<\n");
|
|
for (i = 0; i < (int)TERMFONT__MAX; i++)
|
|
ps_printf(p, "/F%d %d 0 R\n", i, 3 + i);
|
|
ps_printf(p, ">>\n>>\n");
|
|
|
|
/* Page node. */
|
|
pdf_obj(p, base + 3);
|
|
ps_printf(p, "<<\n");
|
|
ps_printf(p, "/Type /Page\n");
|
|
ps_printf(p, "/Parent 2 0 R\n");
|
|
ps_printf(p, "/Resources %zu 0 R\n", base + 2);
|
|
ps_printf(p, "/Contents %zu 0 R\n", base);
|
|
ps_printf(p, ">>\nendobj\n");
|
|
} else
|
|
ps_printf(p, "showpage\n");
|
|
|
|
p->ps->pages++;
|
|
p->ps->psrow = p->ps->top;
|
|
assert( ! (PS_NEWPAGE & p->ps->flags));
|
|
p->ps->flags |= PS_NEWPAGE;
|
|
}
|
|
|
|
|
|
/* ARGSUSED */
|
|
static void
|
|
ps_end(struct termp *p)
|
|
{
|
|
size_t i, xref, base;
|
|
|
|
/*
|
|
* 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.
|
|
*/
|
|
|
|
if ( ! (PS_NEWPAGE & p->ps->flags)) {
|
|
assert(0 == p->ps->flags);
|
|
assert('\0' == p->ps->last);
|
|
ps_closepage(p);
|
|
}
|
|
|
|
if (TERMTYPE_PS == p->type) {
|
|
ps_printf(p, "%%%%Trailer\n");
|
|
ps_printf(p, "%%%%Pages: %zu\n", p->ps->pages);
|
|
ps_printf(p, "%%%%EOF\n");
|
|
return;
|
|
}
|
|
|
|
pdf_obj(p, 2);
|
|
ps_printf(p, "<<\n/Type /Pages\n");
|
|
ps_printf(p, "/MediaBox [0 0 %zu %zu]\n",
|
|
(size_t)AFM2PNT(p, p->ps->width),
|
|
(size_t)AFM2PNT(p, p->ps->height));
|
|
|
|
ps_printf(p, "/Count %zu\n", p->ps->pages);
|
|
ps_printf(p, "/Kids [");
|
|
|
|
for (i = 0; i < p->ps->pages; i++)
|
|
ps_printf(p, " %zu 0 R", i * 4 +
|
|
p->ps->pdfbody + 3);
|
|
|
|
base = (p->ps->pages - 1) * 4 +
|
|
p->ps->pdfbody + 4;
|
|
|
|
ps_printf(p, "]\n>>\nendobj\n");
|
|
pdf_obj(p, base);
|
|
ps_printf(p, "<<\n");
|
|
ps_printf(p, "/Type /Catalog\n");
|
|
ps_printf(p, "/Pages 2 0 R\n");
|
|
ps_printf(p, ">>\n");
|
|
xref = p->ps->pdfbytes;
|
|
ps_printf(p, "xref\n");
|
|
ps_printf(p, "0 %zu\n", base + 1);
|
|
ps_printf(p, "0000000000 65535 f \n");
|
|
|
|
for (i = 0; i < base; i++)
|
|
ps_printf(p, "%.10zu 00000 n \n",
|
|
p->ps->pdfobjs[(int)i]);
|
|
|
|
ps_printf(p, "trailer\n");
|
|
ps_printf(p, "<<\n");
|
|
ps_printf(p, "/Size %zu\n", base + 1);
|
|
ps_printf(p, "/Root %zu 0 R\n", base);
|
|
ps_printf(p, "/Info 1 0 R\n");
|
|
ps_printf(p, ">>\n");
|
|
ps_printf(p, "startxref\n");
|
|
ps_printf(p, "%zu\n", xref);
|
|
ps_printf(p, "%%%%EOF\n");
|
|
}
|
|
|
|
|
|
static void
|
|
ps_begin(struct termp *p)
|
|
{
|
|
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.
|
|
*/
|
|
|
|
if (p->ps->psmarg) {
|
|
assert(p->ps->psmargsz);
|
|
p->ps->psmarg[0] = '\0';
|
|
}
|
|
|
|
/*p->ps->pdfbytes = 0;*/
|
|
p->ps->psmargcur = 0;
|
|
p->ps->flags = PS_MARGINS;
|
|
p->ps->pscol = p->ps->left;
|
|
p->ps->psrow = p->ps->header;
|
|
|
|
ps_setfont(p, TERMFONT_NONE);
|
|
|
|
(*p->headf)(p, p->argf);
|
|
(*p->endline)(p);
|
|
|
|
p->ps->pscol = p->ps->left;
|
|
p->ps->psrow = p->ps->footer;
|
|
|
|
(*p->footf)(p, p->argf);
|
|
(*p->endline)(p);
|
|
|
|
p->ps->flags &= ~PS_MARGINS;
|
|
|
|
assert(0 == p->ps->flags);
|
|
assert(p->ps->psmarg);
|
|
assert('\0' != p->ps->psmarg[0]);
|
|
|
|
/*
|
|
* Print header and initialise page state. Following this,
|
|
* stuff gets printed to the screen, so make sure we're sane.
|
|
*/
|
|
|
|
t = time(NULL);
|
|
|
|
if (TERMTYPE_PS == p->type) {
|
|
ps_printf(p, "%%!PS-Adobe-3.0\n");
|
|
ps_printf(p, "%%%%CreationDate: %s", ctime(&t));
|
|
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",
|
|
(size_t)AFM2PNT(p, p->ps->width),
|
|
(size_t)AFM2PNT(p, p->ps->height));
|
|
ps_printf(p, "%%%%DocumentNeededResources: font");
|
|
|
|
for (i = 0; i < (int)TERMFONT__MAX; i++)
|
|
ps_printf(p, " %s", fonts[i].name);
|
|
|
|
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++) {
|
|
pdf_obj(p, (size_t)i + 3);
|
|
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, "/BaseFont /%s\n", fonts[i].name);
|
|
ps_printf(p, ">>\n");
|
|
}
|
|
}
|
|
|
|
p->ps->pdfbody = (size_t)TERMFONT__MAX + 3;
|
|
p->ps->pscol = p->ps->left;
|
|
p->ps->psrow = p->ps->top;
|
|
p->ps->flags |= PS_NEWPAGE;
|
|
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 (PS_NEWPAGE & p->ps->flags) {
|
|
if (TERMTYPE_PS == p->type) {
|
|
ps_printf(p, "%%%%Page: %zu %zu\n",
|
|
p->ps->pages + 1,
|
|
p->ps->pages + 1);
|
|
ps_printf(p, "/%s %zu selectfont\n",
|
|
fonts[(int)p->ps->lastf].name,
|
|
p->ps->scale);
|
|
} else {
|
|
pdf_obj(p, p->ps->pdfbody +
|
|
p->ps->pages * 4);
|
|
ps_printf(p, "<<\n");
|
|
ps_printf(p, "/Length %zu 0 R\n",
|
|
p->ps->pdfbody + 1 +
|
|
p->ps->pages * 4);
|
|
ps_printf(p, ">>\nstream\n");
|
|
}
|
|
p->ps->pdflastpg = p->ps->pdfbytes;
|
|
p->ps->flags &= ~PS_NEWPAGE;
|
|
}
|
|
|
|
/*
|
|
* If we're not in a PostScript "word" context, then open one
|
|
* now at the current cursor.
|
|
*/
|
|
|
|
if ( ! (PS_INLINE & p->ps->flags)) {
|
|
if (TERMTYPE_PS != p->type) {
|
|
ps_printf(p, "BT\n/F%d %zu Tf\n",
|
|
(int)p->ps->lastf,
|
|
p->ps->scale);
|
|
ps_printf(p, "%.3f %.3f Td\n(",
|
|
AFM2PNT(p, p->ps->pscol),
|
|
AFM2PNT(p, p->ps->psrow));
|
|
} else
|
|
ps_printf(p, "%.3f %.3f moveto\n(",
|
|
AFM2PNT(p, p->ps->pscol),
|
|
AFM2PNT(p, p->ps->psrow));
|
|
p->ps->flags |= PS_INLINE;
|
|
}
|
|
|
|
assert( ! (PS_NEWPAGE & p->ps->flags));
|
|
|
|
/*
|
|
* 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. */
|
|
|
|
f = (int)p->ps->lastf;
|
|
|
|
if (c <= 32 || (c - 32 >= MAXCHAR)) {
|
|
ps_putchar(p, ' ');
|
|
p->ps->pscol += (size_t)fonts[f].gly[0].wx;
|
|
return;
|
|
}
|
|
|
|
ps_putchar(p, (char)c);
|
|
c -= 32;
|
|
p->ps->pscol += (size_t)fonts[f].gly[c].wx;
|
|
}
|
|
|
|
|
|
static void
|
|
ps_pclose(struct termp *p)
|
|
{
|
|
|
|
/*
|
|
* 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).
|
|
*/
|
|
|
|
if ( ! (PS_INLINE & p->ps->flags))
|
|
return;
|
|
|
|
if (TERMTYPE_PS != p->type) {
|
|
ps_printf(p, ") Tj\nET\n");
|
|
} else
|
|
ps_printf(p, ") show\n");
|
|
|
|
p->ps->flags &= ~PS_INLINE;
|
|
}
|
|
|
|
|
|
static void
|
|
ps_fclose(struct termp *p)
|
|
{
|
|
|
|
/*
|
|
* 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.
|
|
*/
|
|
|
|
if ('\0' != p->ps->last) {
|
|
if (p->ps->lastf != TERMFONT_NONE) {
|
|
ps_pclose(p);
|
|
ps_setfont(p, TERMFONT_NONE);
|
|
}
|
|
ps_pletter(p, p->ps->last);
|
|
p->ps->last = '\0';
|
|
}
|
|
|
|
if ( ! (PS_INLINE & p->ps->flags))
|
|
return;
|
|
|
|
ps_pclose(p);
|
|
}
|
|
|
|
|
|
static void
|
|
ps_letter(struct termp *p, int arg)
|
|
{
|
|
char cc, c;
|
|
|
|
/* LINTED */
|
|
c = arg >= 128 || arg <= 0 ? '?' : arg;
|
|
|
|
/*
|
|
* 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.
|
|
*/
|
|
|
|
if ('\0' == p->ps->last) {
|
|
assert(8 != c);
|
|
p->ps->last = c;
|
|
return;
|
|
} else if (8 == p->ps->last) {
|
|
assert(8 != c);
|
|
p->ps->last = '\0';
|
|
} else if (8 == c) {
|
|
assert(8 != p->ps->last);
|
|
if ('_' == p->ps->last) {
|
|
if (p->ps->lastf != TERMFONT_UNDER) {
|
|
ps_pclose(p);
|
|
ps_setfont(p, TERMFONT_UNDER);
|
|
}
|
|
} else if (p->ps->lastf != TERMFONT_BOLD) {
|
|
ps_pclose(p);
|
|
ps_setfont(p, TERMFONT_BOLD);
|
|
}
|
|
p->ps->last = c;
|
|
return;
|
|
} else {
|
|
if (p->ps->lastf != TERMFONT_NONE) {
|
|
ps_pclose(p);
|
|
ps_setfont(p, TERMFONT_NONE);
|
|
}
|
|
cc = p->ps->last;
|
|
p->ps->last = c;
|
|
c = cc;
|
|
}
|
|
|
|
ps_pletter(p, c);
|
|
}
|
|
|
|
|
|
static void
|
|
ps_advance(struct termp *p, size_t len)
|
|
{
|
|
|
|
/*
|
|
* 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);
|
|
p->ps->pscol += len;
|
|
}
|
|
|
|
|
|
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.
|
|
*/
|
|
|
|
if (PS_MARGINS & p->ps->flags)
|
|
return;
|
|
|
|
/* Left-justify. */
|
|
|
|
p->ps->pscol = p->ps->left;
|
|
|
|
/* If we haven't printed anything, return. */
|
|
|
|
if (PS_NEWPAGE & p->ps->flags)
|
|
return;
|
|
|
|
/*
|
|
* Put us down a line. If we're at the page bottom, spit out a
|
|
* showpage and restart our row.
|
|
*/
|
|
|
|
if (p->ps->psrow >= p->ps->lineheight +
|
|
p->ps->bottom) {
|
|
p->ps->psrow -= p->ps->lineheight;
|
|
return;
|
|
}
|
|
|
|
ps_closepage(p);
|
|
}
|
|
|
|
|
|
static void
|
|
ps_setfont(struct termp *p, enum termfont f)
|
|
{
|
|
|
|
assert(f < TERMFONT__MAX);
|
|
p->ps->lastf = f;
|
|
|
|
/*
|
|
* If we're still at the top of the page, let the font-setting
|
|
* be delayed until we actually have stuff to print.
|
|
*/
|
|
|
|
if (PS_NEWPAGE & p->ps->flags)
|
|
return;
|
|
|
|
if (TERMTYPE_PS == p->type)
|
|
ps_printf(p, "/%s %zu selectfont\n",
|
|
fonts[(int)f].name,
|
|
p->ps->scale);
|
|
else
|
|
ps_printf(p, "/F%d %zu Tf\n",
|
|
(int)f,
|
|
p->ps->scale);
|
|
}
|
|
|
|
|
|
/* ARGSUSED */
|
|
static size_t
|
|
ps_width(const struct termp *p, int c)
|
|
{
|
|
|
|
if (c <= 32 || c - 32 >= MAXCHAR)
|
|
return((size_t)fonts[(int)TERMFONT_NONE].gly[0].wx);
|
|
|
|
c -= 32;
|
|
return((size_t)fonts[(int)TERMFONT_NONE].gly[c].wx);
|
|
}
|
|
|
|
|
|
static double
|
|
ps_hspan(const struct termp *p, const struct roffsu *su)
|
|
{
|
|
double r;
|
|
|
|
/*
|
|
* All of these measurements are derived by converting from the
|
|
* native measurement to AFM units.
|
|
*/
|
|
|
|
switch (su->unit) {
|
|
case (SCALE_CM):
|
|
r = PNT2AFM(p, su->scale * 28.34);
|
|
break;
|
|
case (SCALE_IN):
|
|
r = PNT2AFM(p, su->scale * 72);
|
|
break;
|
|
case (SCALE_PC):
|
|
r = PNT2AFM(p, su->scale * 12);
|
|
break;
|
|
case (SCALE_PT):
|
|
r = PNT2AFM(p, su->scale * 100);
|
|
break;
|
|
case (SCALE_EM):
|
|
r = su->scale *
|
|
fonts[(int)TERMFONT_NONE].gly[109 - 32].wx;
|
|
break;
|
|
case (SCALE_MM):
|
|
r = PNT2AFM(p, su->scale * 2.834);
|
|
break;
|
|
case (SCALE_EN):
|
|
r = su->scale *
|
|
fonts[(int)TERMFONT_NONE].gly[110 - 32].wx;
|
|
break;
|
|
case (SCALE_VS):
|
|
r = su->scale * p->ps->lineheight;
|
|
break;
|
|
default:
|
|
r = su->scale;
|
|
break;
|
|
}
|
|
|
|
return(r);
|
|
}
|
|
|
|
static void
|
|
ps_growbuf(struct termp *p, size_t sz)
|
|
{
|
|
if (p->ps->psmargcur + sz <= p->ps->psmargsz)
|
|
return;
|
|
|
|
if (sz < PS_BUFSLOP)
|
|
sz = PS_BUFSLOP;
|
|
|
|
p->ps->psmargsz += sz;
|
|
|
|
p->ps->psmarg = mandoc_realloc
|
|
(p->ps->psmarg, p->ps->psmargsz);
|
|
}
|
|
|