mandoc/term_ps.c - diff

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Up to [cvsweb.bsd.lv] / mandoc

Diff for /mandoc/term_ps.c between version 1.27 and 1.59

version 1.27, 2010/07/04 10:53:04

version 1.59, 2014/04/20 16:46:05

Line 1

/* $Id$ */

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

* purpose with or without fee is hereby granted, provided that the above

Line 18

Line 19

#include "config.h"

#endif

#include <sys/param.h>

#include <sys/types.h>

#include <assert.h>

#include <stdarg.h>

Line 29

Line 30

#include <time.h>

#include <unistd.h>

#include "mandoc.h"

#include "mandoc_aux.h"

#include "out.h"

#include "main.h"

#include "term.h"

#define MINMARGIN_MM 20 /* Minimum 2cm margins. */

/* These work the buffer used by the header and footer. */

#define MINMARGIN_PNT 56.68

#define PS_BUFSLOP 128

#define DEFPAGEX_MM 216 /* Default page size is US-letter. */

#define DEFPAGEY_MM 279

/* Convert PostScript point "x" to an AFM unit. */

#define PNT2AFM(p, x) /* LINTED */ \

#define PNT2AFM(p, x) \

(size_t)((double)(x) * (1000.0 / (double)(p)->engine.ps.scale))

(size_t)((double)(x) * (1000.0 / (double)(p)->ps->scale))

/* Convert an AFM unit "x" to a PostScript points */

#define AFM2PNT(p, x) /* LINTED */ \

#define AFM2PNT(p, x) \

(size_t)((double)(x) / (1000.0 / (double)(p)->engine.ps.scale))

((double)(x) / (1000.0 / (double)(p)->ps->scale))

struct glyph {

size_t wx; /* WX in AFM */

unsigned short wx; /* WX in AFM */

};

struct font {

Line 56 struct font {

Line 57 struct font {

struct glyph gly[MAXCHAR]; /* glyph metrics */

};

struct termp_ps {

int flags;

#define PS_INLINE (1 << 0) /* we're in a word */

#define PS_MARGINS (1 << 1) /* we're in the margins */

#define PS_NEWPAGE (1 << 2) /* new page, no words yet */

size_t pscol; /* visible column (AFM units) */

size_t psrow; /* visible row (AFM units) */

char *psmarg; /* margin buf */

size_t psmargsz; /* margin buf size */

size_t psmargcur; /* cur index in margin buf */

char last; /* character buffer */

enum termfont lastf; /* last set font */

size_t scale; /* font scaling factor */

size_t pages; /* number of pages shown */

size_t lineheight; /* line height (AFM units) */

size_t top; /* body top (AFM units) */

size_t bottom; /* body bottom (AFM units) */

size_t height; /* page height (AFM units */

size_t width; /* page width (AFM units) */

size_t lastwidth; /* page width before last ll */

size_t left; /* body left (AFM units) */

size_t header; /* header pos (AFM units) */

size_t footer; /* footer pos (AFM units) */

size_t pdfbytes; /* current output byte */

size_t pdflastpg; /* byte of last page mark */

size_t pdfbody; /* start of body object */

size_t *pdfobjs; /* table of object offsets */

size_t pdfobjsz; /* size of pdfobjs */

};

static double ps_hspan(const struct termp *,

const struct roffsu *);

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

static void ps_advance(struct termp *, size_t);

static void ps_begin(struct termp *);

static void ps_closepage(struct termp *);

static void ps_end(struct termp *);

static void ps_endline(struct termp *);

static void ps_fclose(struct termp *);

static void ps_growbuf(struct termp *, size_t);

static void ps_letter(struct termp *, int);

static void ps_pclose(struct termp *);

static void ps_pletter(struct termp *, int);

#if __GNUC__ - 0 >= 4

__attribute__((__format__ (__printf__, 2, 3)))

#endif

static void ps_printf(struct termp *, const char *, ...);

static void ps_putchar(struct termp *, char);

static void ps_setfont(struct termp *, enum termfont);

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

static struct termp *pspdf_alloc(char *);

static void pdf_obj(struct termp *, size_t);

* We define, for the time being, three fonts: bold, oblique/italic, and

* normal (roman). The following table hard-codes the font metrics for

Line 356 static const struct font fonts[TERMFONT__MAX] = {

Line 410 static const struct font fonts[TERMFONT__MAX] = {

} },

};

/* These work the buffer used by the header and footer. */

void *

#define PS_BUFSLOP 128

pdf_alloc(char *outopts)

#define PS_GROWBUF(p, sz) \

{

do if ((p)->engine.ps.psmargcur + (sz) > \

struct termp *p;

(p)->engine.ps.psmargsz) { \

(p)->engine.ps.psmargsz += /* CONSTCOND */ \

MAX(PS_BUFSLOP, (sz)); \

(p)->engine.ps.psmarg = realloc \

((p)->engine.ps.psmarg, \

(p)->engine.ps.psmargsz); \

if (NULL == (p)->engine.ps.psmarg) { \

perror(NULL); \

exit(EXIT_FAILURE); \

} \

} while (/* CONSTCOND */ 0)

if (NULL != (p = pspdf_alloc(outopts)))

p->type = TERMTYPE_PDF;

static double ps_hspan(const struct termp *,

return(p);

const struct roffsu *);

}

static size_t ps_width(const struct termp *, char);

static void ps_advance(struct termp *, size_t);

static void ps_begin(struct termp *);

static void ps_end(struct termp *);

static void ps_endline(struct termp *);

static void ps_fclose(struct termp *);

static void ps_letter(struct termp *, char);

static void ps_pclose(struct termp *);

static void ps_pletter(struct termp *, int);

static void ps_printf(struct termp *, const char *, ...);

static void ps_putchar(struct termp *, char);

static void ps_setfont(struct termp *, enum termfont);

void *

ps_alloc(char *outopts)

{

struct termp *p;

size_t pagex, pagey, margin, lineheight, m1, m2;

if (NULL != (p = pspdf_alloc(outopts)))

p->type = TERMTYPE_PS;

return(p);

}

static struct termp *

pspdf_alloc(char *outopts)

{

struct termp *p;

unsigned int pagex, pagey;

size_t marginx, marginy, lineheight;

const char *toks[2];

const char *pp;

char *v;

if (NULL == (p = term_alloc(TERMENC_ASCII)))

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

return(NULL);

p->enc = TERMENC_ASCII;

p->ps = mandoc_calloc(1, sizeof(struct termp_ps));

p->advance = ps_advance;

p->begin = ps_begin;

Line 407 ps_alloc(char *outopts)

Line 452 ps_alloc(char *outopts)

p->endline = ps_endline;

p->hspan = ps_hspan;

p->letter = ps_letter;

p->type = TERMTYPE_PS;

p->setwidth = ps_setwidth;

p->width = ps_width;

toks[0] = "paper";

toks[1] = NULL;

Line 417 ps_alloc(char *outopts)

Line 462 ps_alloc(char *outopts)

while (outopts && *outopts)

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

case (0):

case 0:

pp = v;

break;

default:

Line 426 ps_alloc(char *outopts)

Line 471 ps_alloc(char *outopts)

/* Default to US letter (millimetres). */

pagex = DEFPAGEX_MM;

pagex = 216;

pagey = DEFPAGEY_MM;

pagey = 279;

* The ISO-269 paper sizes can be calculated automatically, but

Line 449 ps_alloc(char *outopts)

Line 494 ps_alloc(char *outopts)

} else if (0 == strcasecmp(pp, "legal")) {

pagex = 216;

pagey = 356;

} else if (2 != sscanf(pp, "%zux%zu", &pagex, &pagey))

} else if (2 != sscanf(pp, "%ux%u", &pagex, &pagey))

fprintf(stderr, "%s: Unknown paper\n", pp);

} else if (NULL == pp)

pp = "letter";

/* Enforce minimum page size >= (2 times) min-margin. */

if ((2 * MINMARGIN_MM) >= pagex) {

fprintf(stderr, "%s: Insufficient page width\n", pp);

pagex = DEFPAGEX_MM;

} else if ((2 * MINMARGIN_MM >= pagey)) {

fprintf(stderr, "%s: Insufficient page length\n", pp);

pagey = DEFPAGEY_MM;

}

* This MUST be defined before any PNT2AFM or AFM2PNT

* calculations occur.

p->engine.ps.scale = 11;

p->ps->scale = 11;

/* Remember millimetres -> AFM units. */

pagex = PNT2AFM(p, ((double)pagex * 2.834));

pagey = PNT2AFM(p, ((double)pagey * 2.834));

/* Margins are 1/9 the page x and y. */

* Calculate margins. First get the minimum text width: either

* page minus margins or width of 65 'm' characters. Set total

* margins to page size minus text width.

m1 = ps_width(p, 'm') * 65;

marginx = (size_t)((double)pagex / 9.0);

m2 = pagex - (2 * PNT2AFM(p, MINMARGIN_PNT));

marginy = (size_t)((double)pagey / 9.0);

margin = (pagex - (m1 < m2 ? m1 : m2)) / 2;

lineheight = PNT2AFM(p, 16);

/* Line-height is 1.4em. */

p->engine.ps.width = pagex;

lineheight = PNT2AFM(p, ((double)p->ps->scale * 1.4));

p->engine.ps.height = pagey;

p->engine.ps.header = pagey - (margin / 2) - (lineheight / 2);

p->engine.ps.top = pagey - margin;

p->engine.ps.footer = (margin / 2) - (lineheight / 2);

p->engine.ps.bottom = margin;

p->engine.ps.left = margin;

p->engine.ps.lineheight = lineheight;

p->defrmargin = pagex - (margin * 2);

p->ps->width = p->ps->lastwidth = (size_t)pagex;

p->ps->height = (size_t)pagey;

p->ps->header = pagey - (marginy / 2) - (lineheight / 2);

p->ps->top = pagey - marginy;

p->ps->footer = (marginy / 2) - (lineheight / 2);

p->ps->bottom = marginy;

p->ps->left = marginx;

p->ps->lineheight = lineheight;

p->defrmargin = pagex - (marginx * 2);

return(p);

}

static void

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

{

size_t lastwidth;

lastwidth = p->ps->width;

if (0 < iop)

p->ps->width += width;

else if (0 > iop)

p->ps->width -= width;

else

p->ps->width = width ? width : p->ps->lastwidth;

p->ps->lastwidth = lastwidth;

}

void

ps_free(void *arg)

pspdf_free(void *arg)

{

struct termp *p;

p = (struct termp *)arg;

if (p->engine.ps.psmarg)

if (p->ps->psmarg)

free(p->engine.ps.psmarg);

free(p->ps->psmarg);

if (p->ps->pdfobjs)

free(p->ps->pdfobjs);

free(p->ps);

term_free(p);

}

static void

ps_printf(struct termp *p, const char *fmt, ...)

{

va_list ap;

int pos;

int pos, len;

va_start(ap, fmt);

Line 530 ps_printf(struct termp *p, const char *fmt, ...)

Line 577 ps_printf(struct termp *p, const char *fmt, ...)

* into our growable margin buffer.

if ( ! (PS_MARGINS & p->engine.ps.psstate)) {

if ( ! (PS_MARGINS & p->ps->flags)) {

vprintf(fmt, ap);

len = vprintf(fmt, ap);

va_end(ap);

p->ps->pdfbytes += len < 0 ? 0 : (size_t)len;

return;

}

* XXX: I assume that the in-margin print won't exceed

* PS_BUFSLOP (128 bytes), which is reasonable but still an

* assumption that will cause pukeage if it's not the case.

PS_GROWBUF(p, PS_BUFSLOP);

ps_growbuf(p, PS_BUFSLOP);

pos = (int)p->engine.ps.psmargcur;

pos = (int)p->ps->psmargcur;

vsnprintf(&p->engine.ps.psmarg[pos], PS_BUFSLOP, fmt, ap);

vsnprintf(&p->ps->psmarg[pos], PS_BUFSLOP, fmt, ap);

p->engine.ps.psmargcur = strlen(p->engine.ps.psmarg);

va_end(ap);

p->ps->psmargcur = strlen(p->ps->psmarg);

}

static void

ps_putchar(struct termp *p, char c)

{

Line 559 ps_putchar(struct termp *p, char c)

Line 607 ps_putchar(struct termp *p, char c)

/* See ps_printf(). */

if ( ! (PS_MARGINS & p->engine.ps.psstate)) {

if ( ! (PS_MARGINS & p->ps->flags)) {

putchar(c);

p->ps->pdfbytes++;

return;

}

PS_GROWBUF(p, 2);

ps_growbuf(p, 2);

pos = (int)p->engine.ps.psmargcur++;

pos = (int)p->ps->psmargcur++;

p->engine.ps.psmarg[pos++] = c;

p->ps->psmarg[pos++] = c;

p->engine.ps.psmarg[pos] = '\0';

p->ps->psmarg[pos] = '\0';

}

static void

pdf_obj(struct termp *p, size_t obj)

{

/* ARGSUSED */

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;

}

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

Line 583 ps_end(struct termp *p)

Line 704 ps_end(struct termp *p)

* well as just one.

assert(0 == p->engine.ps.psstate);

if ( ! (PS_NEWPAGE & p->ps->flags)) {

assert('\0' == p->engine.ps.last);

assert(0 == p->ps->flags);

assert(p->engine.ps.psmarg && p->engine.ps.psmarg[0]);

assert('\0' == p->ps->last);

printf("%s", p->engine.ps.psmarg);

ps_closepage(p);

p->engine.ps.pages++;

}

printf("showpage\n");

printf("%%%%Trailer\n");

if (TERMTYPE_PS == p->type) {

printf("%%%%Pages: %zu\n", p->engine.ps.pages);

ps_printf(p, "%%%%Trailer\n");

printf("%%%%EOF\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->engine.ps.psmarg) {

if (p->ps->psmarg) {

assert(p->engine.ps.psmargsz);

assert(p->ps->psmargsz);

p->engine.ps.psmarg[0] = '\0';

p->ps->psmarg[0] = '\0';

}

p->engine.ps.psmargcur = 0;

/*p->ps->pdfbytes = 0;*/

p->engine.ps.psstate = PS_MARGINS;

p->ps->psmargcur = 0;

p->engine.ps.pscol = p->engine.ps.left;

p->ps->flags = PS_MARGINS;

p->engine.ps.psrow = p->engine.ps.header;

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->engine.ps.pscol = p->engine.ps.left;

p->ps->pscol = p->ps->left;

p->engine.ps.psrow = p->engine.ps.footer;

p->ps->psrow = p->ps->footer;

(*p->footf)(p, p->argf);

(*p->endline)(p);

p->engine.ps.psstate &= ~PS_MARGINS;

p->ps->flags &= ~PS_MARGINS;

assert(0 == p->engine.ps.psstate);

assert(0 == p->ps->flags);

assert(p->engine.ps.psmarg);

assert(p->ps->psmarg);

assert('\0' != p->engine.ps.psmarg[0]);

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);

printf("%%!PS-Adobe-3.0\n");

if (TERMTYPE_PS == p->type) {

printf("%%%%Creator: mandoc-%s\n", VERSION);

ps_printf(p, "%%!PS-Adobe-3.0\n");

printf("%%%%CreationDate: %s", ctime(&t));

ps_printf(p, "%%%%CreationDate: %s", ctime(&t));

printf("%%%%DocumentData: Clean7Bit\n");

ps_printf(p, "%%%%DocumentData: Clean7Bit\n");

printf("%%%%Orientation: Portrait\n");

ps_printf(p, "%%%%Orientation: Portrait\n");

printf("%%%%Pages: (atend)\n");

ps_printf(p, "%%%%Pages: (atend)\n");

printf("%%%%PageOrder: Ascend\n");

ps_printf(p, "%%%%PageOrder: Ascend\n");

printf("%%%%DocumentMedia: Default %zu %zu 0 () ()\n",

ps_printf(p, "%%%%DocumentMedia: "

AFM2PNT(p, p->engine.ps.width),

"Default %zu %zu 0 () ()\n",

AFM2PNT(p, p->engine.ps.height));

(size_t)AFM2PNT(p, p->ps->width),

printf("%%%%DocumentNeededResources: font");

(size_t)AFM2PNT(p, p->ps->height));

for (i = 0; i < (int)TERMFONT__MAX; i++)

ps_printf(p, "%%%%DocumentNeededResources: font");

printf(" %s", fonts[i].name);

printf("\n%%%%EndComments\n");

printf("%%%%Page: %zu %zu\n",

for (i = 0; i < (int)TERMFONT__MAX; i++)

p->engine.ps.pages + 1,

ps_printf(p, " %s", fonts[i].name);

p->engine.ps.pages + 1);

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%d\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);

p->engine.ps.pscol = p->engine.ps.left;

p->engine.ps.psrow = p->engine.ps.top;

}

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->engine.ps.psstate)) {

if ( ! (PS_INLINE & p->ps->flags)) {

ps_printf(p, "%zu %zu moveto\n(",

if (TERMTYPE_PS != p->type) {

AFM2PNT(p, p->engine.ps.pscol),

ps_printf(p, "BT\n/F%d %zu Tf\n",

AFM2PNT(p, p->engine.ps.psrow));

(int)p->ps->lastf, p->ps->scale);

p->engine.ps.psstate |= PS_INLINE;

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

Line 691 ps_pletter(struct termp *p, int c)

Line 903 ps_pletter(struct termp *p, int c)

switch (c) {

case ('('):

case '(':

/* FALLTHROUGH */

case (')'):

case ')':

/* FALLTHROUGH */

case ('\\'):

case '\\':

ps_putchar(p, '\\');

break;

default:

Line 704 ps_pletter(struct termp *p, int c)

Line 916 ps_pletter(struct termp *p, int c)

/* Write the character and adjust where we are on the page. */

f = (int)p->engine.ps.lastf;

f = (int)p->ps->lastf;

if (c <= 32 || (c - 32 > MAXCHAR)) {

if (c <= 32 || (c - 32 >= MAXCHAR)) {

ps_putchar(p, ' ');

p->engine.ps.pscol += fonts[f].gly[0].wx;

p->ps->pscol += (size_t)fonts[f].gly[0].wx;

return;

}

ps_putchar(p, (char)c);

c -= 32;

p->engine.ps.pscol += fonts[f].gly[c].wx;

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->engine.ps.psstate))

if ( ! (PS_INLINE & p->ps->flags))

return;

ps_printf(p, ") show\n");

p->engine.ps.psstate &= ~PS_INLINE;

}

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)

{

Line 748 ps_fclose(struct termp *p)

Line 962 ps_fclose(struct termp *p)

* Following this, close out any scope that's open.

if ('\0' != p->engine.ps.last) {

if ('\0' != p->ps->last) {

if (p->engine.ps.lastf != TERMFONT_NONE) {

if (p->ps->lastf != TERMFONT_NONE) {

ps_pclose(p);

ps_setfont(p, TERMFONT_NONE);

}

ps_pletter(p, p->engine.ps.last);

ps_pletter(p, p->ps->last);

p->engine.ps.last = '\0';

p->ps->last = '\0';

}

if ( ! (PS_INLINE & p->engine.ps.psstate))

if ( ! (PS_INLINE & p->ps->flags))

return;

ps_pclose(p);

}

static void

ps_letter(struct termp *p, char c)

ps_letter(struct termp *p, int arg)

{

char cc;

char cc, c;

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

Line 778 ps_letter(struct termp *p, char c)

Line 993 ps_letter(struct termp *p, char c)

* regular character and a regular buffer character.

if ('\0' == p->engine.ps.last) {

if ('\0' == p->ps->last) {

assert(8 != c);

p->engine.ps.last = c;

p->ps->last = c;

return;

} else if (8 == p->engine.ps.last) {

} else if (8 == p->ps->last) {

assert(8 != c);

p->engine.ps.last = '\0';

p->ps->last = '\0';

} else if (8 == c) {

assert(8 != p->engine.ps.last);

assert(8 != p->ps->last);

if ('_' == p->engine.ps.last) {

if ('_' == p->ps->last) {

if (p->engine.ps.lastf != TERMFONT_UNDER) {

if (p->ps->lastf != TERMFONT_UNDER) {

ps_pclose(p);

ps_setfont(p, TERMFONT_UNDER);

}

} else if (p->engine.ps.lastf != TERMFONT_BOLD) {

} else if (p->ps->lastf != TERMFONT_BOLD) {

ps_pclose(p);

ps_setfont(p, TERMFONT_BOLD);

}

p->engine.ps.last = c;

p->ps->last = c;

return;

} else {

if (p->engine.ps.lastf != TERMFONT_NONE) {

if (p->ps->lastf != TERMFONT_NONE) {

ps_pclose(p);

ps_setfont(p, TERMFONT_NONE);

}

cc = p->engine.ps.last;

cc = p->ps->last;

p->engine.ps.last = c;

p->ps->last = c;

c = cc;

}

ps_pletter(p, c);

}

static void

ps_advance(struct termp *p, size_t len)

{

Line 824 ps_advance(struct termp *p, size_t len)

Line 1038 ps_advance(struct termp *p, size_t len)

ps_fclose(p);

p->engine.ps.pscol += len;

p->ps->pscol += len;

}

static void

ps_endline(struct termp *p)

{

Line 839 ps_endline(struct termp *p)

Line 1052 ps_endline(struct termp *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->engine.ps.psstate)

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.

p->engine.ps.pscol = p->engine.ps.left;

if (p->ps->psrow >= p->ps->lineheight + p->ps->bottom) {

if (p->engine.ps.psrow >= p->engine.ps.lineheight +

p->ps->psrow -= p->ps->lineheight;

p->engine.ps.bottom) {

p->engine.ps.psrow -= p->engine.ps.lineheight;

return;

}

assert(p->engine.ps.psmarg && p->engine.ps.psmarg[0]);

ps_closepage(p);

printf("%s", p->engine.ps.psmarg);

printf("showpage\n");

p->engine.ps.pages++;

printf("%%%%Page: %zu %zu\n",

p->engine.ps.pages + 1,

p->engine.ps.pages + 1);

p->engine.ps.psrow = p->engine.ps.top;

}

static void

ps_setfont(struct termp *p, enum termfont f)

{

assert(f < TERMFONT__MAX);

ps_printf(p, "/%s %zu selectfont\n",

p->ps->lastf = f;

fonts[(int)f].name, p->engine.ps.scale);

p->engine.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.

/* ARGSUSED */

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);

}

static size_t

ps_width(const struct termp *p, char c)

ps_width(const struct termp *p, int c)

{

if (c <= 32 || c - 32 >= MAXCHAR)

return(fonts[(int)TERMFONT_NONE].gly[0].wx);

return((size_t)fonts[(int)TERMFONT_NONE].gly[0].wx);

c -= 32;

return(fonts[(int)TERMFONT_NONE].gly[(int)c].wx);

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):

case SCALE_CM:

r = PNT2AFM(p, su->scale * 28.34);

break;

case (SCALE_IN):

case SCALE_IN:

r = PNT2AFM(p, su->scale * 72);

break;

case (SCALE_PC):

case SCALE_PC:

r = PNT2AFM(p, su->scale * 12);

break;

case (SCALE_PT):

case SCALE_PT:

r = PNT2AFM(p, su->scale * 100);

break;

case (SCALE_EM):

case SCALE_EM:

r = su->scale *

fonts[(int)TERMFONT_NONE].gly[109 - 32].wx;

break;

case (SCALE_MM):

case SCALE_MM:

r = PNT2AFM(p, su->scale * 2.834);

break;

case (SCALE_EN):

case SCALE_EN:

r = su->scale *

fonts[(int)TERMFONT_NONE].gly[110 - 32].wx;

break;

case (SCALE_VS):

case SCALE_VS:

r = su->scale * p->engine.ps.lineheight;

r = su->scale * p->ps->lineheight;

break;

default:

r = su->scale;

Line 937 ps_hspan(const struct termp *p, const struct roffsu *s

Line 1159 ps_hspan(const struct termp *p, const struct roffsu *s

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);

}

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