version 1.66, 2014/08/28 01:37:12 |
version 1.72, 2015/01/21 19:40:54 |
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/* $Id$ */ |
/* $Id$ */ |
/* |
/* |
* Copyright (c) 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv> |
* Copyright (c) 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv> |
* Copyright (c) 2014 Ingo Schwarze <schwarze@openbsd.org> |
* Copyright (c) 2014, 2015 Ingo Schwarze <schwarze@openbsd.org> |
* |
* |
* Permission to use, copy, modify, and distribute this software for any |
* Permission to use, copy, modify, and distribute this software for any |
* purpose with or without fee is hereby granted, provided that the above |
* purpose with or without fee is hereby granted, provided that the above |
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#include <string.h> |
#include <string.h> |
#include <unistd.h> |
#include <unistd.h> |
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#include "mandoc.h" |
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#include "mandoc_aux.h" |
#include "mandoc_aux.h" |
#include "out.h" |
#include "out.h" |
#include "main.h" |
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#include "term.h" |
#include "term.h" |
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#include "main.h" |
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/* These work the buffer used by the header and footer. */ |
/* These work the buffer used by the header and footer. */ |
#define PS_BUFSLOP 128 |
#define PS_BUFSLOP 128 |
Line 59 struct termp_ps { |
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Line 58 struct termp_ps { |
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#define PS_INLINE (1 << 0) /* we're in a word */ |
#define PS_INLINE (1 << 0) /* we're in a word */ |
#define PS_MARGINS (1 << 1) /* we're in the margins */ |
#define PS_MARGINS (1 << 1) /* we're in the margins */ |
#define PS_NEWPAGE (1 << 2) /* new page, no words yet */ |
#define PS_NEWPAGE (1 << 2) /* new page, no words yet */ |
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#define PS_BACKSP (1 << 3) /* last character was backspace */ |
size_t pscol; /* visible column (AFM units) */ |
size_t pscol; /* visible column (AFM units) */ |
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size_t pscolnext; /* used for overstrike */ |
size_t psrow; /* visible row (AFM units) */ |
size_t psrow; /* visible row (AFM units) */ |
char *psmarg; /* margin buf */ |
char *psmarg; /* margin buf */ |
size_t psmargsz; /* margin buf size */ |
size_t psmargsz; /* margin buf size */ |
size_t psmargcur; /* cur index in margin buf */ |
size_t psmargcur; /* cur index in margin buf */ |
char last; /* character buffer */ |
char last; /* last non-backspace seen */ |
enum termfont lastf; /* last set font */ |
enum termfont lastf; /* last set font */ |
enum termfont nextf; /* building next font here */ |
enum termfont nextf; /* building next font here */ |
size_t scale; /* font scaling factor */ |
size_t scale; /* font scaling factor */ |
Line 105 static void ps_printf(struct termp *, const char *, |
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Line 106 static void ps_printf(struct termp *, const char *, |
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static void ps_putchar(struct termp *, char); |
static void ps_putchar(struct termp *, char); |
static void ps_setfont(struct termp *, enum termfont); |
static void ps_setfont(struct termp *, enum termfont); |
static void ps_setwidth(struct termp *, int, size_t); |
static void ps_setwidth(struct termp *, int, size_t); |
static struct termp *pspdf_alloc(char *); |
static struct termp *pspdf_alloc(const struct mchars *, char *); |
static void pdf_obj(struct termp *, size_t); |
static void pdf_obj(struct termp *, size_t); |
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/* |
/* |
Line 506 static const struct font fonts[TERMFONT__MAX] = { |
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Line 507 static const struct font fonts[TERMFONT__MAX] = { |
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}; |
}; |
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void * |
void * |
pdf_alloc(char *outopts) |
pdf_alloc(const struct mchars *mchars, char *outopts) |
{ |
{ |
struct termp *p; |
struct termp *p; |
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if (NULL != (p = pspdf_alloc(outopts))) |
if (NULL != (p = pspdf_alloc(mchars, outopts))) |
p->type = TERMTYPE_PDF; |
p->type = TERMTYPE_PDF; |
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return(p); |
return(p); |
} |
} |
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void * |
void * |
ps_alloc(char *outopts) |
ps_alloc(const struct mchars *mchars, char *outopts) |
{ |
{ |
struct termp *p; |
struct termp *p; |
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if (NULL != (p = pspdf_alloc(outopts))) |
if (NULL != (p = pspdf_alloc(mchars, outopts))) |
p->type = TERMTYPE_PS; |
p->type = TERMTYPE_PS; |
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return(p); |
return(p); |
} |
} |
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static struct termp * |
static struct termp * |
pspdf_alloc(char *outopts) |
pspdf_alloc(const struct mchars *mchars, char *outopts) |
{ |
{ |
struct termp *p; |
struct termp *p; |
unsigned int pagex, pagey; |
unsigned int pagex, pagey; |
Line 538 pspdf_alloc(char *outopts) |
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Line 539 pspdf_alloc(char *outopts) |
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char *v; |
char *v; |
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p = mandoc_calloc(1, sizeof(struct termp)); |
p = mandoc_calloc(1, sizeof(struct termp)); |
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p->symtab = mchars; |
p->enc = TERMENC_ASCII; |
p->enc = TERMENC_ASCII; |
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p->fontq = mandoc_reallocarray(NULL, |
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(p->fontsz = 8), sizeof(enum termfont)); |
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p->fontq[0] = p->fontl = TERMFONT_NONE; |
p->ps = mandoc_calloc(1, sizeof(struct termp_ps)); |
p->ps = mandoc_calloc(1, sizeof(struct termp_ps)); |
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p->advance = ps_advance; |
p->advance = ps_advance; |
Line 633 ps_setwidth(struct termp *p, int iop, size_t width) |
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Line 638 ps_setwidth(struct termp *p, int iop, size_t width) |
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size_t lastwidth; |
size_t lastwidth; |
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lastwidth = p->ps->width; |
lastwidth = p->ps->width; |
if (0 < iop) |
if (iop > 0) |
p->ps->width += width; |
p->ps->width += width; |
else if (0 > iop) |
else if (iop == 0) |
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p->ps->width = width ? width : p->ps->lastwidth; |
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else if (p->ps->width > width) |
p->ps->width -= width; |
p->ps->width -= width; |
else |
else |
p->ps->width = width ? width : p->ps->lastwidth; |
p->ps->width = 0; |
p->ps->lastwidth = lastwidth; |
p->ps->lastwidth = lastwidth; |
} |
} |
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Line 1047 ps_fclose(struct termp *p) |
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Line 1054 ps_fclose(struct termp *p) |
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*/ |
*/ |
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if (p->ps->last != '\0') { |
if (p->ps->last != '\0') { |
assert(p->ps->last != 8); |
assert( ! (p->ps->flags & PS_BACKSP)); |
if (p->ps->nextf != p->ps->lastf) { |
if (p->ps->nextf != p->ps->lastf) { |
ps_pclose(p); |
ps_pclose(p); |
ps_setfont(p, p->ps->nextf); |
ps_setfont(p, p->ps->nextf); |
Line 1066 ps_fclose(struct termp *p) |
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Line 1073 ps_fclose(struct termp *p) |
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static void |
static void |
ps_letter(struct termp *p, int arg) |
ps_letter(struct termp *p, int arg) |
{ |
{ |
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size_t savecol, wx; |
char c; |
char c; |
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c = arg >= 128 || arg <= 0 ? '?' : arg; |
c = arg >= 128 || arg <= 0 ? '?' : arg; |
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/* |
/* |
* When receiving an initial character, merely buffer it, |
* When receiving a backspace, merely flag it. |
* because a backspace might follow to specify formatting. |
* We don't know yet whether it is |
* When receiving a backspace, use the buffered character |
* a font instruction or an overstrike. |
* to build the font instruction and clear the buffer. |
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* Only when there are two non-backspace characters in a row, |
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* activate the font built so far and print the first of them; |
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* the second, again, merely gets buffered. |
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* The final character will get printed from ps_fclose(). |
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*/ |
*/ |
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if (c == 8) { |
if (c == '\b') { |
assert(p->ps->last != '\0'); |
assert(p->ps->last != '\0'); |
assert(p->ps->last != 8); |
assert( ! (p->ps->flags & PS_BACKSP)); |
if ('_' == p->ps->last) { |
p->ps->flags |= PS_BACKSP; |
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return; |
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} |
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/* |
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* Decode font instructions. |
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*/ |
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if (p->ps->flags & PS_BACKSP) { |
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if (p->ps->last == '_') { |
switch (p->ps->nextf) { |
switch (p->ps->nextf) { |
case TERMFONT_BI: |
case TERMFONT_BI: |
break; |
break; |
Line 1094 ps_letter(struct termp *p, int arg) |
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Line 1106 ps_letter(struct termp *p, int arg) |
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default: |
default: |
p->ps->nextf = TERMFONT_UNDER; |
p->ps->nextf = TERMFONT_UNDER; |
} |
} |
} else { |
p->ps->last = c; |
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p->ps->flags &= ~PS_BACKSP; |
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return; |
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} |
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if (p->ps->last == c) { |
switch (p->ps->nextf) { |
switch (p->ps->nextf) { |
case TERMFONT_BI: |
case TERMFONT_BI: |
break; |
break; |
Line 1104 ps_letter(struct termp *p, int arg) |
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Line 1120 ps_letter(struct termp *p, int arg) |
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default: |
default: |
p->ps->nextf = TERMFONT_BOLD; |
p->ps->nextf = TERMFONT_BOLD; |
} |
} |
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p->ps->flags &= ~PS_BACKSP; |
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return; |
} |
} |
} else if (p->ps->last != '\0' && p->ps->last != 8) { |
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/* |
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* This is not a font instruction, but rather |
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* the next character. Prepare for overstrike. |
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*/ |
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savecol = p->ps->pscol; |
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} else |
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savecol = SIZE_MAX; |
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/* |
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* We found the next character, so the font instructions |
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* for the previous one are complete. |
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* Use them and print it. |
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*/ |
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if (p->ps->last != '\0') { |
if (p->ps->nextf != p->ps->lastf) { |
if (p->ps->nextf != p->ps->lastf) { |
ps_pclose(p); |
ps_pclose(p); |
ps_setfont(p, p->ps->nextf); |
ps_setfont(p, p->ps->nextf); |
} |
} |
p->ps->nextf = TERMFONT_NONE; |
p->ps->nextf = TERMFONT_NONE; |
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/* |
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* For an overstrike, if a previous character |
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* was wider, advance to center the new one. |
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*/ |
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if (p->ps->pscolnext) { |
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wx = fonts[p->ps->lastf].gly[(int)p->ps->last-32].wx; |
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if (p->ps->pscol + wx < p->ps->pscolnext) |
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p->ps->pscol = (p->ps->pscol + |
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p->ps->pscolnext - wx) / 2; |
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} |
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ps_pletter(p, p->ps->last); |
ps_pletter(p, p->ps->last); |
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/* |
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* For an overstrike, if a previous character |
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* was wider, advance to the end of the old one. |
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*/ |
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if (p->ps->pscol < p->ps->pscolnext) { |
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ps_pclose(p); |
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p->ps->pscol = p->ps->pscolnext; |
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} |
} |
} |
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/* |
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* Do not print the current character yet because font |
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* instructions might follow; only remember it. |
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* For the first character, nothing else is done. |
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* The final character will get printed from ps_fclose(). |
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*/ |
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p->ps->last = c; |
p->ps->last = c; |
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/* |
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* For an overstrike, back up to the previous position. |
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* If the previous character is wider than any it overstrikes, |
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* remember the current position, because it might also be |
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* wider than all that will overstrike it. |
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*/ |
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if (savecol != SIZE_MAX) { |
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if (p->ps->pscolnext < p->ps->pscol) |
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p->ps->pscolnext = p->ps->pscol; |
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ps_pclose(p); |
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p->ps->pscol = savecol; |
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p->ps->flags &= ~PS_BACKSP; |
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} else |
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p->ps->pscolnext = 0; |
} |
} |
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static void |
static void |