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/* $OpenBSD: term_ps.c,v 1.49 2017/06/07 17:38:08 schwarze Exp $ */ |
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/* |
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* Copyright (c) 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv> |
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* Copyright (c) 2014, 2015, 2016, 2017 Ingo Schwarze <schwarze@openbsd.org> |
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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 AUTHORS DISCLAIM 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 AUTHORS 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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#include <sys/types.h> |
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#include <assert.h> |
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#include <err.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 <unistd.h> |
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#include "mandoc_aux.h" |
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#include "out.h" |
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#include "term.h" |
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#include "manconf.h" |
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#include "main.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) \ |
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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) \ |
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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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#define PS_BACKSP (1 << 3) /* last character was backspace */ |
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size_t pscol; /* visible column (AFM units) */ |
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size_t pscolnext; /* used for overstrike */ |
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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; /* last non-backspace seen */ |
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enum termfont lastf; /* last set font */ |
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enum termfont nextf; /* building next font here */ |
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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 lastwidth; /* page width before last ll */ |
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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 int 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_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_plast(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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__attribute__((__format__ (__printf__, 2, 3))); |
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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 void ps_setwidth(struct termp *, int, int); |
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static struct termp *pspdf_alloc(const struct manoutput *); |
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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 }, |
327 |
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{ 278 }, |
328 |
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{ 500 }, |
329 |
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{ 500 }, |
330 |
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{ 500 }, |
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{ 500 }, |
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{ 500 }, |
333 |
|
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{ 500 }, |
334 |
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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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|
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{ 333 }, |
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|
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{ 675 }, |
341 |
|
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{ 675 }, |
342 |
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{ 675 }, |
343 |
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{ 500 }, |
344 |
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{ 920 }, |
345 |
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{ 611 }, |
346 |
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{ 611 }, |
347 |
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{ 667 }, |
348 |
|
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{ 722 }, |
349 |
|
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{ 611 }, |
350 |
|
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{ 611 }, |
351 |
|
|
{ 722 }, |
352 |
|
|
{ 722 }, |
353 |
|
|
{ 333 }, |
354 |
|
|
{ 444 }, |
355 |
|
|
{ 667 }, |
356 |
|
|
{ 556 }, |
357 |
|
|
{ 833 }, |
358 |
|
|
{ 667 }, |
359 |
|
|
{ 722 }, |
360 |
|
|
{ 611 }, |
361 |
|
|
{ 722 }, |
362 |
|
|
{ 611 }, |
363 |
|
|
{ 500 }, |
364 |
|
|
{ 556 }, |
365 |
|
|
{ 722 }, |
366 |
|
|
{ 611 }, |
367 |
|
|
{ 833 }, |
368 |
|
|
{ 611 }, |
369 |
|
|
{ 556 }, |
370 |
|
|
{ 556 }, |
371 |
|
|
{ 389 }, |
372 |
|
|
{ 278 }, |
373 |
|
|
{ 389 }, |
374 |
|
|
{ 422 }, |
375 |
|
|
{ 500 }, |
376 |
|
|
{ 333 }, |
377 |
|
|
{ 500 }, |
378 |
|
|
{ 500 }, |
379 |
|
|
{ 444 }, |
380 |
|
|
{ 500 }, |
381 |
|
|
{ 444 }, |
382 |
|
|
{ 278 }, |
383 |
|
|
{ 500 }, |
384 |
|
|
{ 500 }, |
385 |
|
|
{ 278 }, |
386 |
|
|
{ 278 }, |
387 |
|
|
{ 444 }, |
388 |
|
|
{ 278 }, |
389 |
|
|
{ 722 }, |
390 |
|
|
{ 500 }, |
391 |
|
|
{ 500 }, |
392 |
|
|
{ 500 }, |
393 |
|
|
{ 500 }, |
394 |
|
|
{ 389 }, |
395 |
|
|
{ 389 }, |
396 |
|
|
{ 278 }, |
397 |
|
|
{ 500 }, |
398 |
|
|
{ 444 }, |
399 |
|
|
{ 667 }, |
400 |
|
|
{ 444 }, |
401 |
|
|
{ 444 }, |
402 |
|
|
{ 389 }, |
403 |
|
|
{ 400 }, |
404 |
|
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{ 275 }, |
405 |
|
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{ 400 }, |
406 |
|
|
{ 541 }, |
407 |
|
|
} }, |
408 |
|
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{ "Times-BoldItalic", { |
409 |
|
|
{ 250 }, |
410 |
|
|
{ 389 }, |
411 |
|
|
{ 555 }, |
412 |
|
|
{ 500 }, |
413 |
|
|
{ 500 }, |
414 |
|
|
{ 833 }, |
415 |
|
|
{ 778 }, |
416 |
|
|
{ 333 }, |
417 |
|
|
{ 333 }, |
418 |
|
|
{ 333 }, |
419 |
|
|
{ 500 }, |
420 |
|
|
{ 570 }, |
421 |
|
|
{ 250 }, |
422 |
|
|
{ 333 }, |
423 |
|
|
{ 250 }, |
424 |
|
|
{ 278 }, |
425 |
|
|
{ 500 }, |
426 |
|
|
{ 500 }, |
427 |
|
|
{ 500 }, |
428 |
|
|
{ 500 }, |
429 |
|
|
{ 500 }, |
430 |
|
|
{ 500 }, |
431 |
|
|
{ 500 }, |
432 |
|
|
{ 500 }, |
433 |
|
|
{ 500 }, |
434 |
|
|
{ 500 }, |
435 |
|
|
{ 333 }, |
436 |
|
|
{ 333 }, |
437 |
|
|
{ 570 }, |
438 |
|
|
{ 570 }, |
439 |
|
|
{ 570 }, |
440 |
|
|
{ 500 }, |
441 |
|
|
{ 832 }, |
442 |
|
|
{ 667 }, |
443 |
|
|
{ 667 }, |
444 |
|
|
{ 667 }, |
445 |
|
|
{ 722 }, |
446 |
|
|
{ 667 }, |
447 |
|
|
{ 667 }, |
448 |
|
|
{ 722 }, |
449 |
|
|
{ 778 }, |
450 |
|
|
{ 389 }, |
451 |
|
|
{ 500 }, |
452 |
|
|
{ 667 }, |
453 |
|
|
{ 611 }, |
454 |
|
|
{ 889 }, |
455 |
|
|
{ 722 }, |
456 |
|
|
{ 722 }, |
457 |
|
|
{ 611 }, |
458 |
|
|
{ 722 }, |
459 |
|
|
{ 667 }, |
460 |
|
|
{ 556 }, |
461 |
|
|
{ 611 }, |
462 |
|
|
{ 722 }, |
463 |
|
|
{ 667 }, |
464 |
|
|
{ 889 }, |
465 |
|
|
{ 667 }, |
466 |
|
|
{ 611 }, |
467 |
|
|
{ 611 }, |
468 |
|
|
{ 333 }, |
469 |
|
|
{ 278 }, |
470 |
|
|
{ 333 }, |
471 |
|
|
{ 570 }, |
472 |
|
|
{ 500 }, |
473 |
|
|
{ 333 }, |
474 |
|
|
{ 500 }, |
475 |
|
|
{ 500 }, |
476 |
|
|
{ 444 }, |
477 |
|
|
{ 500 }, |
478 |
|
|
{ 444 }, |
479 |
|
|
{ 333 }, |
480 |
|
|
{ 500 }, |
481 |
|
|
{ 556 }, |
482 |
|
|
{ 278 }, |
483 |
|
|
{ 278 }, |
484 |
|
|
{ 500 }, |
485 |
|
|
{ 278 }, |
486 |
|
|
{ 778 }, |
487 |
|
|
{ 556 }, |
488 |
|
|
{ 500 }, |
489 |
|
|
{ 500 }, |
490 |
|
|
{ 500 }, |
491 |
|
|
{ 389 }, |
492 |
|
|
{ 389 }, |
493 |
|
|
{ 278 }, |
494 |
|
|
{ 556 }, |
495 |
|
|
{ 444 }, |
496 |
|
|
{ 667 }, |
497 |
|
|
{ 500 }, |
498 |
|
|
{ 444 }, |
499 |
|
|
{ 389 }, |
500 |
|
|
{ 348 }, |
501 |
|
|
{ 220 }, |
502 |
|
|
{ 348 }, |
503 |
|
|
{ 570 }, |
504 |
|
|
} }, |
505 |
|
|
}; |
506 |
|
|
|
507 |
|
|
void * |
508 |
|
|
pdf_alloc(const struct manoutput *outopts) |
509 |
|
|
{ |
510 |
|
|
struct termp *p; |
511 |
|
|
|
512 |
|
|
if (NULL != (p = pspdf_alloc(outopts))) |
513 |
|
|
p->type = TERMTYPE_PDF; |
514 |
|
|
|
515 |
|
|
return p; |
516 |
|
|
} |
517 |
|
|
|
518 |
|
|
void * |
519 |
|
|
ps_alloc(const struct manoutput *outopts) |
520 |
|
|
{ |
521 |
|
|
struct termp *p; |
522 |
|
|
|
523 |
|
|
if (NULL != (p = pspdf_alloc(outopts))) |
524 |
|
|
p->type = TERMTYPE_PS; |
525 |
|
|
|
526 |
|
|
return p; |
527 |
|
|
} |
528 |
|
|
|
529 |
|
|
static struct termp * |
530 |
|
|
pspdf_alloc(const struct manoutput *outopts) |
531 |
|
|
{ |
532 |
|
|
struct termp *p; |
533 |
|
|
unsigned int pagex, pagey; |
534 |
|
|
size_t marginx, marginy, lineheight; |
535 |
|
|
const char *pp; |
536 |
|
|
|
537 |
|
|
p = mandoc_calloc(1, sizeof(*p)); |
538 |
|
|
p->tcol = p->tcols = mandoc_calloc(1, sizeof(*p->tcol)); |
539 |
|
|
p->maxtcol = 1; |
540 |
|
|
|
541 |
|
|
p->enc = TERMENC_ASCII; |
542 |
|
|
p->fontq = mandoc_reallocarray(NULL, |
543 |
|
|
(p->fontsz = 8), sizeof(*p->fontq)); |
544 |
|
|
p->fontq[0] = p->fontl = TERMFONT_NONE; |
545 |
|
|
p->ps = mandoc_calloc(1, sizeof(*p->ps)); |
546 |
|
|
|
547 |
|
|
p->advance = ps_advance; |
548 |
|
|
p->begin = ps_begin; |
549 |
|
|
p->end = ps_end; |
550 |
|
|
p->endline = ps_endline; |
551 |
|
|
p->hspan = ps_hspan; |
552 |
|
|
p->letter = ps_letter; |
553 |
|
|
p->setwidth = ps_setwidth; |
554 |
|
|
p->width = ps_width; |
555 |
|
|
|
556 |
|
|
/* Default to US letter (millimetres). */ |
557 |
|
|
|
558 |
|
|
pagex = 216; |
559 |
|
|
pagey = 279; |
560 |
|
|
|
561 |
|
|
/* |
562 |
|
|
* The ISO-269 paper sizes can be calculated automatically, but |
563 |
|
|
* it would require bringing in -lm for pow() and I'd rather not |
564 |
|
|
* do that. So just do it the easy way for now. Since this |
565 |
|
|
* only happens once, I'm not terribly concerned. |
566 |
|
|
*/ |
567 |
|
|
|
568 |
|
|
pp = outopts->paper; |
569 |
|
|
if (pp && strcasecmp(pp, "letter")) { |
570 |
|
|
if (0 == strcasecmp(pp, "a3")) { |
571 |
|
|
pagex = 297; |
572 |
|
|
pagey = 420; |
573 |
|
|
} else if (0 == strcasecmp(pp, "a4")) { |
574 |
|
|
pagex = 210; |
575 |
|
|
pagey = 297; |
576 |
|
|
} else if (0 == strcasecmp(pp, "a5")) { |
577 |
|
|
pagex = 148; |
578 |
|
|
pagey = 210; |
579 |
|
|
} else if (0 == strcasecmp(pp, "legal")) { |
580 |
|
|
pagex = 216; |
581 |
|
|
pagey = 356; |
582 |
|
|
} else if (2 != sscanf(pp, "%ux%u", &pagex, &pagey)) |
583 |
|
|
warnx("%s: Unknown paper", pp); |
584 |
|
|
} |
585 |
|
|
|
586 |
|
|
/* |
587 |
|
|
* This MUST be defined before any PNT2AFM or AFM2PNT |
588 |
|
|
* calculations occur. |
589 |
|
|
*/ |
590 |
|
|
|
591 |
|
|
p->ps->scale = 11; |
592 |
|
|
|
593 |
|
|
/* Remember millimetres -> AFM units. */ |
594 |
|
|
|
595 |
|
|
pagex = PNT2AFM(p, ((double)pagex * 2.834)); |
596 |
|
|
pagey = PNT2AFM(p, ((double)pagey * 2.834)); |
597 |
|
|
|
598 |
|
|
/* Margins are 1/9 the page x and y. */ |
599 |
|
|
|
600 |
|
|
marginx = (size_t)((double)pagex / 9.0); |
601 |
|
|
marginy = (size_t)((double)pagey / 9.0); |
602 |
|
|
|
603 |
|
|
/* Line-height is 1.4em. */ |
604 |
|
|
|
605 |
|
|
lineheight = PNT2AFM(p, ((double)p->ps->scale * 1.4)); |
606 |
|
|
|
607 |
|
|
p->ps->width = p->ps->lastwidth = (size_t)pagex; |
608 |
|
|
p->ps->height = (size_t)pagey; |
609 |
|
|
p->ps->header = pagey - (marginy / 2) - (lineheight / 2); |
610 |
|
|
p->ps->top = pagey - marginy; |
611 |
|
|
p->ps->footer = (marginy / 2) - (lineheight / 2); |
612 |
|
|
p->ps->bottom = marginy; |
613 |
|
|
p->ps->left = marginx; |
614 |
|
|
p->ps->lineheight = lineheight; |
615 |
|
|
|
616 |
|
|
p->defrmargin = pagex - (marginx * 2); |
617 |
|
|
return p; |
618 |
|
|
} |
619 |
|
|
|
620 |
|
|
static void |
621 |
|
|
ps_setwidth(struct termp *p, int iop, int width) |
622 |
|
|
{ |
623 |
|
|
size_t lastwidth; |
624 |
|
|
|
625 |
|
|
lastwidth = p->ps->width; |
626 |
|
|
if (iop > 0) |
627 |
|
|
p->ps->width += width; |
628 |
|
|
else if (iop == 0) |
629 |
|
|
p->ps->width = width ? (size_t)width : p->ps->lastwidth; |
630 |
|
|
else if (p->ps->width > (size_t)width) |
631 |
|
|
p->ps->width -= width; |
632 |
|
|
else |
633 |
|
|
p->ps->width = 0; |
634 |
|
|
p->ps->lastwidth = lastwidth; |
635 |
|
|
} |
636 |
|
|
|
637 |
|
|
void |
638 |
|
|
pspdf_free(void *arg) |
639 |
|
|
{ |
640 |
|
|
struct termp *p; |
641 |
|
|
|
642 |
|
|
p = (struct termp *)arg; |
643 |
|
|
|
644 |
|
|
free(p->ps->psmarg); |
645 |
|
|
free(p->ps->pdfobjs); |
646 |
|
|
|
647 |
|
|
free(p->ps); |
648 |
|
|
term_free(p); |
649 |
|
|
} |
650 |
|
|
|
651 |
|
|
static void |
652 |
|
|
ps_printf(struct termp *p, const char *fmt, ...) |
653 |
|
|
{ |
654 |
|
|
va_list ap; |
655 |
|
|
int pos, len; |
656 |
|
|
|
657 |
|
|
va_start(ap, fmt); |
658 |
|
|
|
659 |
|
|
/* |
660 |
|
|
* If we're running in regular mode, then pipe directly into |
661 |
|
|
* vprintf(). If we're processing margins, then push the data |
662 |
|
|
* into our growable margin buffer. |
663 |
|
|
*/ |
664 |
|
|
|
665 |
|
|
if ( ! (PS_MARGINS & p->ps->flags)) { |
666 |
|
|
len = vprintf(fmt, ap); |
667 |
|
|
va_end(ap); |
668 |
|
|
p->ps->pdfbytes += len < 0 ? 0 : (size_t)len; |
669 |
|
|
return; |
670 |
|
|
} |
671 |
|
|
|
672 |
|
|
/* |
673 |
|
|
* XXX: I assume that the in-margin print won't exceed |
674 |
|
|
* PS_BUFSLOP (128 bytes), which is reasonable but still an |
675 |
|
|
* assumption that will cause pukeage if it's not the case. |
676 |
|
|
*/ |
677 |
|
|
|
678 |
|
|
ps_growbuf(p, PS_BUFSLOP); |
679 |
|
|
|
680 |
|
|
pos = (int)p->ps->psmargcur; |
681 |
|
|
vsnprintf(&p->ps->psmarg[pos], PS_BUFSLOP, fmt, ap); |
682 |
|
|
|
683 |
|
|
va_end(ap); |
684 |
|
|
|
685 |
|
|
p->ps->psmargcur = strlen(p->ps->psmarg); |
686 |
|
|
} |
687 |
|
|
|
688 |
|
|
static void |
689 |
|
|
ps_putchar(struct termp *p, char c) |
690 |
|
|
{ |
691 |
|
|
int pos; |
692 |
|
|
|
693 |
|
|
/* See ps_printf(). */ |
694 |
|
|
|
695 |
|
|
if ( ! (PS_MARGINS & p->ps->flags)) { |
696 |
|
|
putchar(c); |
697 |
|
|
p->ps->pdfbytes++; |
698 |
|
|
return; |
699 |
|
|
} |
700 |
|
|
|
701 |
|
|
ps_growbuf(p, 2); |
702 |
|
|
|
703 |
|
|
pos = (int)p->ps->psmargcur++; |
704 |
|
|
p->ps->psmarg[pos++] = c; |
705 |
|
|
p->ps->psmarg[pos] = '\0'; |
706 |
|
|
} |
707 |
|
|
|
708 |
|
|
static void |
709 |
|
|
pdf_obj(struct termp *p, size_t obj) |
710 |
|
|
{ |
711 |
|
|
|
712 |
|
|
assert(obj > 0); |
713 |
|
|
|
714 |
|
|
if ((obj - 1) >= p->ps->pdfobjsz) { |
715 |
|
|
p->ps->pdfobjsz = obj + 128; |
716 |
|
|
p->ps->pdfobjs = mandoc_reallocarray(p->ps->pdfobjs, |
717 |
|
|
p->ps->pdfobjsz, sizeof(size_t)); |
718 |
|
|
} |
719 |
|
|
|
720 |
|
|
p->ps->pdfobjs[(int)obj - 1] = p->ps->pdfbytes; |
721 |
|
|
ps_printf(p, "%zu 0 obj\n", obj); |
722 |
|
|
} |
723 |
|
|
|
724 |
|
|
static void |
725 |
|
|
ps_closepage(struct termp *p) |
726 |
|
|
{ |
727 |
|
|
int i; |
728 |
|
|
size_t len, base; |
729 |
|
|
|
730 |
|
|
/* |
731 |
|
|
* Close out a page that we've already flushed to output. In |
732 |
|
|
* PostScript, we simply note that the page must be showed. In |
733 |
|
|
* PDF, we must now create the Length, Resource, and Page node |
734 |
|
|
* for the page contents. |
735 |
|
|
*/ |
736 |
|
|
|
737 |
|
|
assert(p->ps->psmarg && p->ps->psmarg[0]); |
738 |
|
|
ps_printf(p, "%s", p->ps->psmarg); |
739 |
|
|
|
740 |
|
|
if (TERMTYPE_PS != p->type) { |
741 |
|
|
ps_printf(p, "ET\n"); |
742 |
|
|
|
743 |
|
|
len = p->ps->pdfbytes - p->ps->pdflastpg; |
744 |
|
|
base = p->ps->pages * 4 + p->ps->pdfbody; |
745 |
|
|
|
746 |
|
|
ps_printf(p, "endstream\nendobj\n"); |
747 |
|
|
|
748 |
|
|
/* Length of content. */ |
749 |
|
|
pdf_obj(p, base + 1); |
750 |
|
|
ps_printf(p, "%zu\nendobj\n", len); |
751 |
|
|
|
752 |
|
|
/* Resource for content. */ |
753 |
|
|
pdf_obj(p, base + 2); |
754 |
|
|
ps_printf(p, "<<\n/ProcSet [/PDF /Text]\n"); |
755 |
|
|
ps_printf(p, "/Font <<\n"); |
756 |
|
|
for (i = 0; i < (int)TERMFONT__MAX; i++) |
757 |
|
|
ps_printf(p, "/F%d %d 0 R\n", i, 3 + i); |
758 |
|
|
ps_printf(p, ">>\n>>\n"); |
759 |
|
|
|
760 |
|
|
/* Page node. */ |
761 |
|
|
pdf_obj(p, base + 3); |
762 |
|
|
ps_printf(p, "<<\n"); |
763 |
|
|
ps_printf(p, "/Type /Page\n"); |
764 |
|
|
ps_printf(p, "/Parent 2 0 R\n"); |
765 |
|
|
ps_printf(p, "/Resources %zu 0 R\n", base + 2); |
766 |
|
|
ps_printf(p, "/Contents %zu 0 R\n", base); |
767 |
|
|
ps_printf(p, ">>\nendobj\n"); |
768 |
|
|
} else |
769 |
|
|
ps_printf(p, "showpage\n"); |
770 |
|
|
|
771 |
|
|
p->ps->pages++; |
772 |
|
|
p->ps->psrow = p->ps->top; |
773 |
|
|
assert( ! (PS_NEWPAGE & p->ps->flags)); |
774 |
|
|
p->ps->flags |= PS_NEWPAGE; |
775 |
|
|
} |
776 |
|
|
|
777 |
|
|
static void |
778 |
|
|
ps_end(struct termp *p) |
779 |
|
|
{ |
780 |
|
|
size_t i, xref, base; |
781 |
|
|
|
782 |
|
|
ps_plast(p); |
783 |
|
|
ps_pclose(p); |
784 |
|
|
|
785 |
|
|
/* |
786 |
|
|
* At the end of the file, do one last showpage. This is the |
787 |
|
|
* same behaviour as groff(1) and works for multiple pages as |
788 |
|
|
* well as just one. |
789 |
|
|
*/ |
790 |
|
|
|
791 |
|
|
if ( ! (PS_NEWPAGE & p->ps->flags)) { |
792 |
|
|
assert(0 == p->ps->flags); |
793 |
|
|
assert('\0' == p->ps->last); |
794 |
|
|
ps_closepage(p); |
795 |
|
|
} |
796 |
|
|
|
797 |
|
|
if (TERMTYPE_PS == p->type) { |
798 |
|
|
ps_printf(p, "%%%%Trailer\n"); |
799 |
|
|
ps_printf(p, "%%%%Pages: %zu\n", p->ps->pages); |
800 |
|
|
ps_printf(p, "%%%%EOF\n"); |
801 |
|
|
return; |
802 |
|
|
} |
803 |
|
|
|
804 |
|
|
pdf_obj(p, 2); |
805 |
|
|
ps_printf(p, "<<\n/Type /Pages\n"); |
806 |
|
|
ps_printf(p, "/MediaBox [0 0 %zu %zu]\n", |
807 |
|
|
(size_t)AFM2PNT(p, p->ps->width), |
808 |
|
|
(size_t)AFM2PNT(p, p->ps->height)); |
809 |
|
|
|
810 |
|
|
ps_printf(p, "/Count %zu\n", p->ps->pages); |
811 |
|
|
ps_printf(p, "/Kids ["); |
812 |
|
|
|
813 |
|
|
for (i = 0; i < p->ps->pages; i++) |
814 |
|
|
ps_printf(p, " %zu 0 R", i * 4 + p->ps->pdfbody + 3); |
815 |
|
|
|
816 |
|
|
base = (p->ps->pages - 1) * 4 + p->ps->pdfbody + 4; |
817 |
|
|
|
818 |
|
|
ps_printf(p, "]\n>>\nendobj\n"); |
819 |
|
|
pdf_obj(p, base); |
820 |
|
|
ps_printf(p, "<<\n"); |
821 |
|
|
ps_printf(p, "/Type /Catalog\n"); |
822 |
|
|
ps_printf(p, "/Pages 2 0 R\n"); |
823 |
|
|
ps_printf(p, ">>\n"); |
824 |
|
|
xref = p->ps->pdfbytes; |
825 |
|
|
ps_printf(p, "xref\n"); |
826 |
|
|
ps_printf(p, "0 %zu\n", base + 1); |
827 |
|
|
ps_printf(p, "0000000000 65535 f \n"); |
828 |
|
|
|
829 |
|
|
for (i = 0; i < base; i++) |
830 |
|
|
ps_printf(p, "%.10zu 00000 n \n", |
831 |
|
|
p->ps->pdfobjs[(int)i]); |
832 |
|
|
|
833 |
|
|
ps_printf(p, "trailer\n"); |
834 |
|
|
ps_printf(p, "<<\n"); |
835 |
|
|
ps_printf(p, "/Size %zu\n", base + 1); |
836 |
|
|
ps_printf(p, "/Root %zu 0 R\n", base); |
837 |
|
|
ps_printf(p, "/Info 1 0 R\n"); |
838 |
|
|
ps_printf(p, ">>\n"); |
839 |
|
|
ps_printf(p, "startxref\n"); |
840 |
|
|
ps_printf(p, "%zu\n", xref); |
841 |
|
|
ps_printf(p, "%%%%EOF\n"); |
842 |
|
|
} |
843 |
|
|
|
844 |
|
|
static void |
845 |
|
|
ps_begin(struct termp *p) |
846 |
|
|
{ |
847 |
|
|
int i; |
848 |
|
|
|
849 |
|
|
/* |
850 |
|
|
* Print margins into margin buffer. Nothing gets output to the |
851 |
|
|
* screen yet, so we don't need to initialise the primary state. |
852 |
|
|
*/ |
853 |
|
|
|
854 |
|
|
if (p->ps->psmarg) { |
855 |
|
|
assert(p->ps->psmargsz); |
856 |
|
|
p->ps->psmarg[0] = '\0'; |
857 |
|
|
} |
858 |
|
|
|
859 |
|
|
/*p->ps->pdfbytes = 0;*/ |
860 |
|
|
p->ps->psmargcur = 0; |
861 |
|
|
p->ps->flags = PS_MARGINS; |
862 |
|
|
p->ps->pscol = p->ps->left; |
863 |
|
|
p->ps->psrow = p->ps->header; |
864 |
|
|
|
865 |
|
|
ps_setfont(p, TERMFONT_NONE); |
866 |
|
|
|
867 |
|
|
(*p->headf)(p, p->argf); |
868 |
|
|
(*p->endline)(p); |
869 |
|
|
|
870 |
|
|
p->ps->pscol = p->ps->left; |
871 |
|
|
p->ps->psrow = p->ps->footer; |
872 |
|
|
|
873 |
|
|
(*p->footf)(p, p->argf); |
874 |
|
|
(*p->endline)(p); |
875 |
|
|
|
876 |
|
|
p->ps->flags &= ~PS_MARGINS; |
877 |
|
|
|
878 |
|
|
assert(0 == p->ps->flags); |
879 |
|
|
assert(p->ps->psmarg); |
880 |
|
|
assert('\0' != p->ps->psmarg[0]); |
881 |
|
|
|
882 |
|
|
/* |
883 |
|
|
* Print header and initialise page state. Following this, |
884 |
|
|
* stuff gets printed to the screen, so make sure we're sane. |
885 |
|
|
*/ |
886 |
|
|
|
887 |
|
|
if (TERMTYPE_PS == p->type) { |
888 |
|
|
ps_printf(p, "%%!PS-Adobe-3.0\n"); |
889 |
|
|
ps_printf(p, "%%%%DocumentData: Clean7Bit\n"); |
890 |
|
|
ps_printf(p, "%%%%Orientation: Portrait\n"); |
891 |
|
|
ps_printf(p, "%%%%Pages: (atend)\n"); |
892 |
|
|
ps_printf(p, "%%%%PageOrder: Ascend\n"); |
893 |
|
|
ps_printf(p, "%%%%DocumentMedia: " |
894 |
|
|
"Default %zu %zu 0 () ()\n", |
895 |
|
|
(size_t)AFM2PNT(p, p->ps->width), |
896 |
|
|
(size_t)AFM2PNT(p, p->ps->height)); |
897 |
|
|
ps_printf(p, "%%%%DocumentNeededResources: font"); |
898 |
|
|
|
899 |
|
|
for (i = 0; i < (int)TERMFONT__MAX; i++) |
900 |
|
|
ps_printf(p, " %s", fonts[i].name); |
901 |
|
|
|
902 |
|
|
ps_printf(p, "\n%%%%EndComments\n"); |
903 |
|
|
} else { |
904 |
|
|
ps_printf(p, "%%PDF-1.1\n"); |
905 |
|
|
pdf_obj(p, 1); |
906 |
|
|
ps_printf(p, "<<\n"); |
907 |
|
|
ps_printf(p, ">>\n"); |
908 |
|
|
ps_printf(p, "endobj\n"); |
909 |
|
|
|
910 |
|
|
for (i = 0; i < (int)TERMFONT__MAX; i++) { |
911 |
|
|
pdf_obj(p, (size_t)i + 3); |
912 |
|
|
ps_printf(p, "<<\n"); |
913 |
|
|
ps_printf(p, "/Type /Font\n"); |
914 |
|
|
ps_printf(p, "/Subtype /Type1\n"); |
915 |
|
|
ps_printf(p, "/Name /F%d\n", i); |
916 |
|
|
ps_printf(p, "/BaseFont /%s\n", fonts[i].name); |
917 |
|
|
ps_printf(p, ">>\n"); |
918 |
|
|
} |
919 |
|
|
} |
920 |
|
|
|
921 |
|
|
p->ps->pdfbody = (size_t)TERMFONT__MAX + 3; |
922 |
|
|
p->ps->pscol = p->ps->left; |
923 |
|
|
p->ps->psrow = p->ps->top; |
924 |
|
|
p->ps->flags |= PS_NEWPAGE; |
925 |
|
|
ps_setfont(p, TERMFONT_NONE); |
926 |
|
|
} |
927 |
|
|
|
928 |
|
|
static void |
929 |
|
|
ps_pletter(struct termp *p, int c) |
930 |
|
|
{ |
931 |
|
|
int f; |
932 |
|
|
|
933 |
|
|
/* |
934 |
|
|
* If we haven't opened a page context, then output that we're |
935 |
|
|
* in a new page and make sure the font is correctly set. |
936 |
|
|
*/ |
937 |
|
|
|
938 |
|
|
if (PS_NEWPAGE & p->ps->flags) { |
939 |
|
|
if (TERMTYPE_PS == p->type) { |
940 |
|
|
ps_printf(p, "%%%%Page: %zu %zu\n", |
941 |
|
|
p->ps->pages + 1, p->ps->pages + 1); |
942 |
|
|
ps_printf(p, "/%s %zu selectfont\n", |
943 |
|
|
fonts[(int)p->ps->lastf].name, |
944 |
|
|
p->ps->scale); |
945 |
|
|
} else { |
946 |
|
|
pdf_obj(p, p->ps->pdfbody + |
947 |
|
|
p->ps->pages * 4); |
948 |
|
|
ps_printf(p, "<<\n"); |
949 |
|
|
ps_printf(p, "/Length %zu 0 R\n", |
950 |
|
|
p->ps->pdfbody + 1 + p->ps->pages * 4); |
951 |
|
|
ps_printf(p, ">>\nstream\n"); |
952 |
|
|
} |
953 |
|
|
p->ps->pdflastpg = p->ps->pdfbytes; |
954 |
|
|
p->ps->flags &= ~PS_NEWPAGE; |
955 |
|
|
} |
956 |
|
|
|
957 |
|
|
/* |
958 |
|
|
* If we're not in a PostScript "word" context, then open one |
959 |
|
|
* now at the current cursor. |
960 |
|
|
*/ |
961 |
|
|
|
962 |
|
|
if ( ! (PS_INLINE & p->ps->flags)) { |
963 |
|
|
if (TERMTYPE_PS != p->type) { |
964 |
|
|
ps_printf(p, "BT\n/F%d %zu Tf\n", |
965 |
|
|
(int)p->ps->lastf, p->ps->scale); |
966 |
|
|
ps_printf(p, "%.3f %.3f Td\n(", |
967 |
|
|
AFM2PNT(p, p->ps->pscol), |
968 |
|
|
AFM2PNT(p, p->ps->psrow)); |
969 |
|
|
} else |
970 |
|
|
ps_printf(p, "%.3f %.3f moveto\n(", |
971 |
|
|
AFM2PNT(p, p->ps->pscol), |
972 |
|
|
AFM2PNT(p, p->ps->psrow)); |
973 |
|
|
p->ps->flags |= PS_INLINE; |
974 |
|
|
} |
975 |
|
|
|
976 |
|
|
assert( ! (PS_NEWPAGE & p->ps->flags)); |
977 |
|
|
|
978 |
|
|
/* |
979 |
|
|
* We need to escape these characters as per the PostScript |
980 |
|
|
* specification. We would also escape non-graphable characters |
981 |
|
|
* (like tabs), but none of them would get to this point and |
982 |
|
|
* it's superfluous to abort() on them. |
983 |
|
|
*/ |
984 |
|
|
|
985 |
|
|
switch (c) { |
986 |
|
|
case '(': |
987 |
|
|
case ')': |
988 |
|
|
case '\\': |
989 |
|
|
ps_putchar(p, '\\'); |
990 |
|
|
break; |
991 |
|
|
default: |
992 |
|
|
break; |
993 |
|
|
} |
994 |
|
|
|
995 |
|
|
/* Write the character and adjust where we are on the page. */ |
996 |
|
|
|
997 |
|
|
f = (int)p->ps->lastf; |
998 |
|
|
|
999 |
|
|
if (c <= 32 || c - 32 >= MAXCHAR) |
1000 |
|
|
c = 32; |
1001 |
|
|
|
1002 |
|
|
ps_putchar(p, (char)c); |
1003 |
|
|
c -= 32; |
1004 |
|
|
p->ps->pscol += (size_t)fonts[f].gly[c].wx; |
1005 |
|
|
} |
1006 |
|
|
|
1007 |
|
|
static void |
1008 |
|
|
ps_pclose(struct termp *p) |
1009 |
|
|
{ |
1010 |
|
|
|
1011 |
|
|
/* |
1012 |
|
|
* Spit out that we're exiting a word context (this is a |
1013 |
|
|
* "partial close" because we don't check the last-char buffer |
1014 |
|
|
* or anything). |
1015 |
|
|
*/ |
1016 |
|
|
|
1017 |
|
|
if ( ! (PS_INLINE & p->ps->flags)) |
1018 |
|
|
return; |
1019 |
|
|
|
1020 |
|
|
if (TERMTYPE_PS != p->type) { |
1021 |
|
|
ps_printf(p, ") Tj\nET\n"); |
1022 |
|
|
} else |
1023 |
|
|
ps_printf(p, ") show\n"); |
1024 |
|
|
|
1025 |
|
|
p->ps->flags &= ~PS_INLINE; |
1026 |
|
|
} |
1027 |
|
|
|
1028 |
|
|
/* If we have a `last' char that wasn't printed yet, print it now. */ |
1029 |
|
|
static void |
1030 |
|
|
ps_plast(struct termp *p) |
1031 |
|
|
{ |
1032 |
|
|
size_t wx; |
1033 |
|
|
|
1034 |
|
|
if (p->ps->last == '\0') |
1035 |
|
|
return; |
1036 |
|
|
|
1037 |
|
|
/* Check the font mode; open a new scope if it doesn't match. */ |
1038 |
|
|
|
1039 |
|
|
if (p->ps->nextf != p->ps->lastf) { |
1040 |
|
|
ps_pclose(p); |
1041 |
|
|
ps_setfont(p, p->ps->nextf); |
1042 |
|
|
} |
1043 |
|
|
p->ps->nextf = TERMFONT_NONE; |
1044 |
|
|
|
1045 |
|
|
/* |
1046 |
|
|
* For an overstrike, if a previous character |
1047 |
|
|
* was wider, advance to center the new one. |
1048 |
|
|
*/ |
1049 |
|
|
|
1050 |
|
|
if (p->ps->pscolnext) { |
1051 |
|
|
wx = fonts[p->ps->lastf].gly[(int)p->ps->last-32].wx; |
1052 |
|
|
if (p->ps->pscol + wx < p->ps->pscolnext) |
1053 |
|
|
p->ps->pscol = (p->ps->pscol + |
1054 |
|
|
p->ps->pscolnext - wx) / 2; |
1055 |
|
|
} |
1056 |
|
|
|
1057 |
|
|
ps_pletter(p, p->ps->last); |
1058 |
|
|
p->ps->last = '\0'; |
1059 |
|
|
|
1060 |
|
|
/* |
1061 |
|
|
* For an overstrike, if a previous character |
1062 |
|
|
* was wider, advance to the end of the old one. |
1063 |
|
|
*/ |
1064 |
|
|
|
1065 |
|
|
if (p->ps->pscol < p->ps->pscolnext) { |
1066 |
|
|
ps_pclose(p); |
1067 |
|
|
p->ps->pscol = p->ps->pscolnext; |
1068 |
|
|
} |
1069 |
|
|
} |
1070 |
|
|
|
1071 |
|
|
static void |
1072 |
|
|
ps_letter(struct termp *p, int arg) |
1073 |
|
|
{ |
1074 |
|
|
size_t savecol; |
1075 |
|
|
char c; |
1076 |
|
|
|
1077 |
|
|
c = arg >= 128 || arg <= 0 ? '?' : arg; |
1078 |
|
|
|
1079 |
|
|
/* |
1080 |
|
|
* When receiving a backspace, merely flag it. |
1081 |
|
|
* We don't know yet whether it is |
1082 |
|
|
* a font instruction or an overstrike. |
1083 |
|
|
*/ |
1084 |
|
|
|
1085 |
|
|
if (c == '\b') { |
1086 |
|
|
assert(p->ps->last != '\0'); |
1087 |
|
|
assert( ! (p->ps->flags & PS_BACKSP)); |
1088 |
|
|
p->ps->flags |= PS_BACKSP; |
1089 |
|
|
return; |
1090 |
|
|
} |
1091 |
|
|
|
1092 |
|
|
/* |
1093 |
|
|
* Decode font instructions. |
1094 |
|
|
*/ |
1095 |
|
|
|
1096 |
|
|
if (p->ps->flags & PS_BACKSP) { |
1097 |
|
|
if (p->ps->last == '_') { |
1098 |
|
|
switch (p->ps->nextf) { |
1099 |
|
|
case TERMFONT_BI: |
1100 |
|
|
break; |
1101 |
|
|
case TERMFONT_BOLD: |
1102 |
|
|
p->ps->nextf = TERMFONT_BI; |
1103 |
|
|
break; |
1104 |
|
|
default: |
1105 |
|
|
p->ps->nextf = TERMFONT_UNDER; |
1106 |
|
|
} |
1107 |
|
|
p->ps->last = c; |
1108 |
|
|
p->ps->flags &= ~PS_BACKSP; |
1109 |
|
|
return; |
1110 |
|
|
} |
1111 |
|
|
if (p->ps->last == c) { |
1112 |
|
|
switch (p->ps->nextf) { |
1113 |
|
|
case TERMFONT_BI: |
1114 |
|
|
break; |
1115 |
|
|
case TERMFONT_UNDER: |
1116 |
|
|
p->ps->nextf = TERMFONT_BI; |
1117 |
|
|
break; |
1118 |
|
|
default: |
1119 |
|
|
p->ps->nextf = TERMFONT_BOLD; |
1120 |
|
|
} |
1121 |
|
|
p->ps->flags &= ~PS_BACKSP; |
1122 |
|
|
return; |
1123 |
|
|
} |
1124 |
|
|
|
1125 |
|
|
/* |
1126 |
|
|
* This is not a font instruction, but rather |
1127 |
|
|
* the next character. Prepare for overstrike. |
1128 |
|
|
*/ |
1129 |
|
|
|
1130 |
|
|
savecol = p->ps->pscol; |
1131 |
|
|
} else |
1132 |
|
|
savecol = SIZE_MAX; |
1133 |
|
|
|
1134 |
|
|
/* |
1135 |
|
|
* We found the next character, so the font instructions |
1136 |
|
|
* for the previous one are complete. |
1137 |
|
|
* Use them and print it. |
1138 |
|
|
*/ |
1139 |
|
|
|
1140 |
|
|
ps_plast(p); |
1141 |
|
|
|
1142 |
|
|
/* |
1143 |
|
|
* Do not print the current character yet because font |
1144 |
|
|
* instructions might follow; only remember the character. |
1145 |
|
|
* It will get printed later from ps_plast(). |
1146 |
|
|
*/ |
1147 |
|
|
|
1148 |
|
|
p->ps->last = c; |
1149 |
|
|
|
1150 |
|
|
/* |
1151 |
|
|
* For an overstrike, back up to the previous position. |
1152 |
|
|
* If the previous character is wider than any it overstrikes, |
1153 |
|
|
* remember the current position, because it might also be |
1154 |
|
|
* wider than all that will overstrike it. |
1155 |
|
|
*/ |
1156 |
|
|
|
1157 |
|
|
if (savecol != SIZE_MAX) { |
1158 |
|
|
if (p->ps->pscolnext < p->ps->pscol) |
1159 |
|
|
p->ps->pscolnext = p->ps->pscol; |
1160 |
|
|
ps_pclose(p); |
1161 |
|
|
p->ps->pscol = savecol; |
1162 |
|
|
p->ps->flags &= ~PS_BACKSP; |
1163 |
|
|
} else |
1164 |
|
|
p->ps->pscolnext = 0; |
1165 |
|
|
} |
1166 |
|
|
|
1167 |
|
|
static void |
1168 |
|
|
ps_advance(struct termp *p, size_t len) |
1169 |
|
|
{ |
1170 |
|
|
|
1171 |
|
|
/* |
1172 |
|
|
* Advance some spaces. This can probably be made smarter, |
1173 |
|
|
* i.e., to have multiple space-separated words in the same |
1174 |
|
|
* scope, but this is easier: just close out the current scope |
1175 |
|
|
* and readjust our column settings. |
1176 |
|
|
*/ |
1177 |
|
|
|
1178 |
|
|
ps_plast(p); |
1179 |
|
|
ps_pclose(p); |
1180 |
|
|
p->ps->pscol += len; |
1181 |
|
|
} |
1182 |
|
|
|
1183 |
|
|
static void |
1184 |
|
|
ps_endline(struct termp *p) |
1185 |
|
|
{ |
1186 |
|
|
|
1187 |
|
|
/* Close out any scopes we have open: we're at eoln. */ |
1188 |
|
|
|
1189 |
|
|
ps_plast(p); |
1190 |
|
|
ps_pclose(p); |
1191 |
|
|
|
1192 |
|
|
/* |
1193 |
|
|
* If we're in the margin, don't try to recalculate our current |
1194 |
|
|
* row. XXX: if the column tries to be fancy with multiple |
1195 |
|
|
* lines, we'll do nasty stuff. |
1196 |
|
|
*/ |
1197 |
|
|
|
1198 |
|
|
if (PS_MARGINS & p->ps->flags) |
1199 |
|
|
return; |
1200 |
|
|
|
1201 |
|
|
/* Left-justify. */ |
1202 |
|
|
|
1203 |
|
|
p->ps->pscol = p->ps->left; |
1204 |
|
|
|
1205 |
|
|
/* If we haven't printed anything, return. */ |
1206 |
|
|
|
1207 |
|
|
if (PS_NEWPAGE & p->ps->flags) |
1208 |
|
|
return; |
1209 |
|
|
|
1210 |
|
|
/* |
1211 |
|
|
* Put us down a line. If we're at the page bottom, spit out a |
1212 |
|
|
* showpage and restart our row. |
1213 |
|
|
*/ |
1214 |
|
|
|
1215 |
|
|
if (p->ps->psrow >= p->ps->lineheight + p->ps->bottom) { |
1216 |
|
|
p->ps->psrow -= p->ps->lineheight; |
1217 |
|
|
return; |
1218 |
|
|
} |
1219 |
|
|
|
1220 |
|
|
ps_closepage(p); |
1221 |
|
|
|
1222 |
|
|
p->tcol->offset -= p->ti; |
1223 |
|
|
p->ti = 0; |
1224 |
|
|
} |
1225 |
|
|
|
1226 |
|
|
static void |
1227 |
|
|
ps_setfont(struct termp *p, enum termfont f) |
1228 |
|
|
{ |
1229 |
|
|
|
1230 |
|
|
assert(f < TERMFONT__MAX); |
1231 |
|
|
p->ps->lastf = f; |
1232 |
|
|
|
1233 |
|
|
/* |
1234 |
|
|
* If we're still at the top of the page, let the font-setting |
1235 |
|
|
* be delayed until we actually have stuff to print. |
1236 |
|
|
*/ |
1237 |
|
|
|
1238 |
|
|
if (PS_NEWPAGE & p->ps->flags) |
1239 |
|
|
return; |
1240 |
|
|
|
1241 |
|
|
if (TERMTYPE_PS == p->type) |
1242 |
|
|
ps_printf(p, "/%s %zu selectfont\n", |
1243 |
|
|
fonts[(int)f].name, p->ps->scale); |
1244 |
|
|
else |
1245 |
|
|
ps_printf(p, "/F%d %zu Tf\n", |
1246 |
|
|
(int)f, p->ps->scale); |
1247 |
|
|
} |
1248 |
|
|
|
1249 |
|
|
static size_t |
1250 |
|
|
ps_width(const struct termp *p, int c) |
1251 |
|
|
{ |
1252 |
|
|
|
1253 |
|
|
if (c <= 32 || c - 32 >= MAXCHAR) |
1254 |
|
|
c = 0; |
1255 |
|
|
else |
1256 |
|
|
c -= 32; |
1257 |
|
|
|
1258 |
|
|
return (size_t)fonts[(int)TERMFONT_NONE].gly[c].wx; |
1259 |
|
|
} |
1260 |
|
|
|
1261 |
|
|
static int |
1262 |
|
|
ps_hspan(const struct termp *p, const struct roffsu *su) |
1263 |
|
|
{ |
1264 |
|
|
double r; |
1265 |
|
|
|
1266 |
|
|
/* |
1267 |
|
|
* All of these measurements are derived by converting from the |
1268 |
|
|
* native measurement to AFM units. |
1269 |
|
|
*/ |
1270 |
|
|
switch (su->unit) { |
1271 |
|
|
case SCALE_BU: |
1272 |
|
|
/* |
1273 |
|
|
* Traditionally, the default unit is fixed to the |
1274 |
|
|
* output media. So this would refer to the point. In |
1275 |
|
|
* mandoc(1), however, we stick to the default terminal |
1276 |
|
|
* scaling unit so that output is the same regardless |
1277 |
|
|
* the media. |
1278 |
|
|
*/ |
1279 |
|
|
r = PNT2AFM(p, su->scale * 72.0 / 240.0); |
1280 |
|
|
break; |
1281 |
|
|
case SCALE_CM: |
1282 |
|
|
r = PNT2AFM(p, su->scale * 72.0 / 2.54); |
1283 |
|
|
break; |
1284 |
|
|
case SCALE_EM: |
1285 |
|
|
r = su->scale * |
1286 |
|
|
fonts[(int)TERMFONT_NONE].gly[109 - 32].wx; |
1287 |
|
|
break; |
1288 |
|
|
case SCALE_EN: |
1289 |
|
|
r = su->scale * |
1290 |
|
|
fonts[(int)TERMFONT_NONE].gly[110 - 32].wx; |
1291 |
|
|
break; |
1292 |
|
|
case SCALE_IN: |
1293 |
|
|
r = PNT2AFM(p, su->scale * 72.0); |
1294 |
|
|
break; |
1295 |
|
|
case SCALE_MM: |
1296 |
|
|
r = su->scale * |
1297 |
|
|
fonts[(int)TERMFONT_NONE].gly[109 - 32].wx / 100.0; |
1298 |
|
|
break; |
1299 |
|
|
case SCALE_PC: |
1300 |
|
|
r = PNT2AFM(p, su->scale * 12.0); |
1301 |
|
|
break; |
1302 |
|
|
case SCALE_PT: |
1303 |
|
|
r = PNT2AFM(p, su->scale * 1.0); |
1304 |
|
|
break; |
1305 |
|
|
case SCALE_VS: |
1306 |
|
|
r = su->scale * p->ps->lineheight; |
1307 |
|
|
break; |
1308 |
|
|
default: |
1309 |
|
|
r = su->scale; |
1310 |
|
|
break; |
1311 |
|
|
} |
1312 |
|
|
|
1313 |
|
|
return r * 24.0; |
1314 |
|
|
} |
1315 |
|
|
|
1316 |
|
|
static void |
1317 |
|
|
ps_growbuf(struct termp *p, size_t sz) |
1318 |
|
|
{ |
1319 |
|
|
if (p->ps->psmargcur + sz <= p->ps->psmargsz) |
1320 |
|
|
return; |
1321 |
|
|
|
1322 |
|
|
if (sz < PS_BUFSLOP) |
1323 |
|
|
sz = PS_BUFSLOP; |
1324 |
|
|
|
1325 |
|
|
p->ps->psmargsz += sz; |
1326 |
|
|
p->ps->psmarg = mandoc_realloc(p->ps->psmarg, p->ps->psmargsz); |
1327 |
|
|
} |