version 1.144, 2010/06/08 09:20:08 |
version 1.186, 2011/04/30 22:24:31 |
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/* $Id$ */ |
/* $Id$ */ |
/* |
/* |
* Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@kth.se> |
* Copyright (c) 2008, 2009, 2010 Kristaps Dzonsons <kristaps@bsd.lv> |
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* Copyright (c) 2010, 2011 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 <assert.h> |
#include <assert.h> |
#include <ctype.h> |
#include <ctype.h> |
#include <getopt.h> |
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#include <stdint.h> |
#include <stdint.h> |
#include <stdio.h> |
#include <stdio.h> |
#include <stdlib.h> |
#include <stdlib.h> |
#include <string.h> |
#include <string.h> |
#include <time.h> |
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#include "mandoc.h" |
#include "mandoc.h" |
#include "chars.h" |
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#include "out.h" |
#include "out.h" |
#include "term.h" |
#include "term.h" |
#include "man.h" |
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#include "mdoc.h" |
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#include "main.h" |
#include "main.h" |
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#define PS_CHAR_WIDTH 6 |
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#define PS_CHAR_HEIGHT 12 |
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#define PS_CHAR_TOPMARG (792 - 24) |
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#define PS_CHAR_TOP (PS_CHAR_TOPMARG - 36) |
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#define PS_CHAR_LEFT 36 |
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#define PS_CHAR_BOTMARG 24 |
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#define PS_CHAR_BOT (PS_CHAR_BOTMARG + 36) |
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static struct termp *alloc(char *, enum termenc, enum termtype); |
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static void term_free(struct termp *); |
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static void spec(struct termp *, const char *, size_t); |
static void spec(struct termp *, const char *, size_t); |
static void res(struct termp *, const char *, size_t); |
static void res(struct termp *, const char *, size_t); |
static void buffera(struct termp *, const char *, size_t); |
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static void bufferc(struct termp *, char); |
static void bufferc(struct termp *, char); |
static void adjbuf(struct termp *p, size_t); |
static void adjbuf(struct termp *p, size_t); |
static void encode(struct termp *, const char *, size_t); |
static void encode(struct termp *, const char *, size_t); |
static void advance(struct termp *, size_t); |
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static void endline(struct termp *); |
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static void letter(struct termp *, char); |
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static void pageopen(struct termp *); |
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void * |
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ascii_alloc(char *outopts) |
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{ |
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return(alloc(outopts, TERMENC_ASCII, TERMTYPE_CHAR)); |
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} |
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void * |
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ps_alloc(void) |
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{ |
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return(alloc(NULL, TERMENC_ASCII, TERMTYPE_PS)); |
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} |
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void |
void |
terminal_free(void *arg) |
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{ |
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term_free((struct termp *)arg); |
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} |
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static void |
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term_free(struct termp *p) |
term_free(struct termp *p) |
{ |
{ |
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if (p->buf) |
if (p->buf) |
free(p->buf); |
free(p->buf); |
if (p->symtab) |
if (p->symtab) |
chars_free(p->symtab); |
mchars_free(p->symtab); |
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free(p); |
free(p); |
} |
} |
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/* |
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* Push a single letter into our output engine. |
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*/ |
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static void |
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letter(struct termp *p, char c) |
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{ |
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if (TERMTYPE_CHAR == p->type) { |
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/* |
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* If using the terminal device, just push the letter |
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* out into the screen. |
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*/ |
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putchar(c); |
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return; |
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} |
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if ( ! (PS_INLINE & p->psstate)) { |
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/* |
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* If we're not in a PostScript "word" context, then |
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* open one now at the current cursor. |
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*/ |
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printf("%zu %zu moveto\n", p->pscol, p->psrow); |
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putchar('('); |
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p->psstate |= PS_INLINE; |
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} |
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/* |
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* We need to escape these characters as per the PostScript |
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* specification. We would also escape non-graphable characters |
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* (like tabs), but none of them would get to this point and |
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* it's superfluous to abort() on them. |
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*/ |
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switch (c) { |
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case ('('): |
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/* FALLTHROUGH */ |
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case (')'): |
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/* FALLTHROUGH */ |
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case ('\\'): |
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putchar('\\'); |
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break; |
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default: |
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break; |
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} |
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/* Write the character and adjust where we are on the page. */ |
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putchar(c); |
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p->pscol += PS_CHAR_WIDTH; |
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} |
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/* |
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* Begin a "terminal" context. Since terminal encompasses PostScript, |
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* the actual terminal, etc., there are a few things we can do here. |
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*/ |
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void |
void |
term_begin(struct termp *p, term_margin head, |
term_begin(struct termp *p, term_margin head, |
term_margin foot, const void *arg) |
term_margin foot, const void *arg) |
Line 158 term_begin(struct termp *p, term_margin head, |
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Line 61 term_begin(struct termp *p, term_margin head, |
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p->headf = head; |
p->headf = head; |
p->footf = foot; |
p->footf = foot; |
p->argf = arg; |
p->argf = arg; |
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(*p->begin)(p); |
if (TERMTYPE_CHAR == p->type) { |
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/* Emit the header and be done. */ |
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(*p->headf)(p, p->argf); |
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return; |
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} |
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/* |
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* Emit the standard PostScript prologue, set our initial page |
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* position, then run pageopen() on the initial page. |
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*/ |
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printf("%s\n", "%!PS"); |
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printf("%s\n", "/Courier"); |
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printf("%s\n", "10 selectfont"); |
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p->pspage = 1; |
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p->psstate = 0; |
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pageopen(p); |
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} |
} |
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/* |
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* Open a page. This is only used for -Tps at the moment. It opens a |
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* page context, printing the header and the footer. THE OUTPUT BUFFER |
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* MUST BE EMPTY. If it is not, output will ghost on the next line and |
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* we'll be all gross and out of state. |
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*/ |
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static void |
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pageopen(struct termp *p) |
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{ |
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assert(TERMTYPE_PS == p->type); |
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assert(0 == p->psstate); |
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p->pscol = PS_CHAR_LEFT; |
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p->psrow = PS_CHAR_TOPMARG; |
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p->psstate |= PS_MARGINS; |
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(*p->headf)(p, p->argf); |
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endline(p); |
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p->psstate &= ~PS_MARGINS; |
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assert(0 == p->psstate); |
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p->pscol = PS_CHAR_LEFT; |
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p->psrow = PS_CHAR_BOTMARG; |
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p->psstate |= PS_MARGINS; |
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(*p->footf)(p, p->argf); |
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endline(p); |
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p->psstate &= ~PS_MARGINS; |
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assert(0 == p->psstate); |
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p->pscol = PS_CHAR_LEFT; |
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p->psrow = PS_CHAR_TOP; |
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} |
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void |
void |
term_end(struct termp *p) |
term_end(struct termp *p) |
{ |
{ |
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if (TERMTYPE_CHAR == p->type) { |
(*p->end)(p); |
(*p->footf)(p, p->argf); |
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return; |
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} |
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printf("%s\n", "%%END"); |
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} |
} |
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static void |
struct termp * |
endline(struct termp *p) |
term_alloc(enum termenc enc) |
{ |
{ |
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if (TERMTYPE_CHAR == p->type) { |
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putchar('\n'); |
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return; |
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} |
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if (PS_INLINE & p->psstate) { |
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printf(") show\n"); |
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p->psstate &= ~PS_INLINE; |
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} |
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if (PS_MARGINS & p->psstate) |
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return; |
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p->pscol = PS_CHAR_LEFT; |
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if (p->psrow >= PS_CHAR_HEIGHT + PS_CHAR_BOT) { |
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p->psrow -= PS_CHAR_HEIGHT; |
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return; |
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} |
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/* |
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* XXX: can't run pageopen() until we're certain a flushln() has |
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* occured, else the buf will reopen in an awkward state on the |
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* next line. |
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*/ |
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printf("showpage\n"); |
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p->psrow = PS_CHAR_TOP; |
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} |
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/* |
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* Advance the output engine by a certain amount of whitespace. |
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*/ |
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static void |
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advance(struct termp *p, size_t len) |
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{ |
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size_t i; |
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if (TERMTYPE_CHAR == p->type) { |
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/* Just print whitespace on the terminal. */ |
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for (i = 0; i < len; i++) |
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putchar(' '); |
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return; |
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} |
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if (PS_INLINE & p->psstate) { |
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/* Dump out any existing line scope. */ |
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printf(") show\n"); |
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p->psstate &= ~PS_INLINE; |
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} |
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p->pscol += len ? len * PS_CHAR_WIDTH : 0; |
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} |
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static struct termp * |
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alloc(char *outopts, enum termenc enc, enum termtype type) |
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{ |
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struct termp *p; |
struct termp *p; |
const char *toks[2]; |
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char *v; |
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size_t width; |
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toks[0] = "width"; |
p = mandoc_calloc(1, sizeof(struct termp)); |
toks[1] = NULL; |
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p = calloc(1, sizeof(struct termp)); |
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if (NULL == p) { |
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perror(NULL); |
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exit(EXIT_FAILURE); |
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} |
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p->type = type; |
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p->tabwidth = 5; |
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p->enc = enc; |
p->enc = enc; |
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width = 80; |
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while (outopts && *outopts) |
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switch (getsubopt(&outopts, UNCONST(toks), &v)) { |
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case (0): |
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width = (size_t)atoi(v); |
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break; |
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default: |
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break; |
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} |
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/* Enforce some lower boundary. */ |
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if (width < 60) |
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width = 60; |
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p->defrmargin = width - 2; |
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return(p); |
return(p); |
} |
} |
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Line 373 term_flushln(struct termp *p) |
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Line 127 term_flushln(struct termp *p) |
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size_t vbl; /* number of blanks to prepend to output */ |
size_t vbl; /* number of blanks to prepend to output */ |
size_t vend; /* end of word visual position on output */ |
size_t vend; /* end of word visual position on output */ |
size_t bp; /* visual right border position */ |
size_t bp; /* visual right border position */ |
int j; /* temporary loop index */ |
size_t dv; /* temporary for visual pos calculations */ |
int jhy; /* last hyphen before line overflow */ |
int j; /* temporary loop index for p->buf */ |
size_t maxvis, mmax; |
int jhy; /* last hyph before overflow w/r/t j */ |
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size_t maxvis; /* output position of visible boundary */ |
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size_t mmax; /* used in calculating bp */ |
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/* |
/* |
* First, establish the maximum columns of "visible" content. |
* First, establish the maximum columns of "visible" content. |
Line 383 term_flushln(struct termp *p) |
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Line 139 term_flushln(struct termp *p) |
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* an indentation, but can be, for tagged lists or columns, a |
* an indentation, but can be, for tagged lists or columns, a |
* small set of values. |
* small set of values. |
*/ |
*/ |
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assert (p->rmargin >= p->offset); |
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dv = p->rmargin - p->offset; |
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maxvis = (int)dv > p->overstep ? dv - (size_t)p->overstep : 0; |
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dv = p->maxrmargin - p->offset; |
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mmax = (int)dv > p->overstep ? dv - (size_t)p->overstep : 0; |
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assert(p->offset < p->rmargin); |
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maxvis = (int)(p->rmargin - p->offset) - p->overstep < 0 ? |
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/* LINTED */ |
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0 : p->rmargin - p->offset - p->overstep; |
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mmax = (int)(p->maxrmargin - p->offset) - p->overstep < 0 ? |
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/* LINTED */ |
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0 : p->maxrmargin - p->offset - p->overstep; |
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bp = TERMP_NOBREAK & p->flags ? mmax : maxvis; |
bp = TERMP_NOBREAK & p->flags ? mmax : maxvis; |
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/* |
/* |
* Indent the first line of a paragraph. |
* Indent the first line of a paragraph. |
*/ |
*/ |
vbl = p->flags & TERMP_NOLPAD ? 0 : p->offset; |
vbl = p->flags & TERMP_NOLPAD ? (size_t)0 : p->offset; |
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/* |
vis = vend = 0; |
* FIXME: if bp is zero, we still output the first word before |
i = 0; |
* breaking the line. |
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*/ |
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vis = vend = i = 0; |
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while (i < (int)p->col) { |
while (i < (int)p->col) { |
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/* |
/* |
* Handle literal tab characters. |
* Handle literal tab characters: collapse all |
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* subsequent tabs into a single huge set of spaces. |
*/ |
*/ |
for (j = i; j < (int)p->col; j++) { |
while (i < (int)p->col && '\t' == p->buf[i]) { |
if ('\t' != p->buf[j]) |
vend = (vis / p->tabwidth + 1) * p->tabwidth; |
break; |
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vend = (vis/p->tabwidth+1)*p->tabwidth; |
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vbl += vend - vis; |
vbl += vend - vis; |
vis = vend; |
vis = vend; |
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i++; |
} |
} |
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/* |
/* |
Line 426 term_flushln(struct termp *p) |
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Line 174 term_flushln(struct termp *p) |
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* space is printed according to regular spacing rules). |
* space is printed according to regular spacing rules). |
*/ |
*/ |
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/* LINTED */ |
for (j = i, jhy = 0; j < (int)p->col; j++) { |
for (jhy = 0; j < (int)p->col; j++) { |
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if ((j && ' ' == p->buf[j]) || '\t' == p->buf[j]) |
if ((j && ' ' == p->buf[j]) || '\t' == p->buf[j]) |
break; |
break; |
if (8 != p->buf[j]) { |
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if (vend > vis && vend < bp && |
/* Back over the the last printed character. */ |
ASCII_HYPH == p->buf[j]) |
if (8 == p->buf[j]) { |
jhy = j; |
assert(j); |
vend++; |
vend -= (*p->width)(p, p->buf[j - 1]); |
} else |
continue; |
vend--; |
} |
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/* Regular word. */ |
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/* Break at the hyphen point if we overrun. */ |
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if (vend > vis && vend < bp && |
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ASCII_HYPH == p->buf[j]) |
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jhy = j; |
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vend += (*p->width)(p, p->buf[j]); |
} |
} |
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/* |
/* |
Line 445 term_flushln(struct termp *p) |
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Line 200 term_flushln(struct termp *p) |
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*/ |
*/ |
if (vend > bp && 0 == jhy && vis > 0) { |
if (vend > bp && 0 == jhy && vis > 0) { |
vend -= vis; |
vend -= vis; |
endline(p); |
(*p->endline)(p); |
if (TERMP_NOBREAK & p->flags) { |
if (TERMP_NOBREAK & p->flags) { |
p->viscol = p->rmargin; |
p->viscol = p->rmargin; |
advance(p, p->rmargin); |
(*p->advance)(p, p->rmargin); |
vend += p->rmargin - p->offset; |
vend += p->rmargin - p->offset; |
} else { |
} else { |
p->viscol = 0; |
p->viscol = 0; |
Line 457 term_flushln(struct termp *p) |
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Line 212 term_flushln(struct termp *p) |
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/* Remove the p->overstep width. */ |
/* Remove the p->overstep width. */ |
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bp += (int)/* LINTED */ |
bp += (size_t)p->overstep; |
p->overstep; |
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p->overstep = 0; |
p->overstep = 0; |
} |
} |
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/* |
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* Skip leading tabs, they were handled above. |
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*/ |
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while (i < (int)p->col && '\t' == p->buf[i]) |
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i++; |
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/* Write out the [remaining] word. */ |
/* Write out the [remaining] word. */ |
for ( ; i < (int)p->col; i++) { |
for ( ; i < (int)p->col; i++) { |
if (vend > bp && jhy > 0 && i > jhy) |
if (vend > bp && jhy > 0 && i > jhy) |
Line 475 term_flushln(struct termp *p) |
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Line 223 term_flushln(struct termp *p) |
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if ('\t' == p->buf[i]) |
if ('\t' == p->buf[i]) |
break; |
break; |
if (' ' == p->buf[i]) { |
if (' ' == p->buf[i]) { |
while (' ' == p->buf[i]) { |
j = i; |
vbl++; |
while (' ' == p->buf[i]) |
i++; |
i++; |
} |
dv = (size_t)(i - j) * (*p->width)(p, ' '); |
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vbl += dv; |
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vend += dv; |
break; |
break; |
} |
} |
if (ASCII_NBRSP == p->buf[i]) { |
if (ASCII_NBRSP == p->buf[i]) { |
vbl++; |
vbl += (*p->width)(p, ' '); |
continue; |
continue; |
} |
} |
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Line 492 term_flushln(struct termp *p) |
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Line 242 term_flushln(struct termp *p) |
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* so write preceding white space now. |
* so write preceding white space now. |
*/ |
*/ |
if (vbl) { |
if (vbl) { |
advance(p, vbl); |
(*p->advance)(p, vbl); |
p->viscol += vbl; |
p->viscol += vbl; |
vbl = 0; |
vbl = 0; |
} |
} |
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if (ASCII_HYPH == p->buf[i]) |
if (ASCII_HYPH == p->buf[i]) { |
letter(p, '-'); |
(*p->letter)(p, '-'); |
else |
p->viscol += (*p->width)(p, '-'); |
letter(p, p->buf[i]); |
} else { |
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(*p->letter)(p, p->buf[i]); |
p->viscol += 1; |
p->viscol += (*p->width)(p, p->buf[i]); |
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} |
} |
} |
vend += vbl; |
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vis = vend; |
vis = vend; |
} |
} |
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/* |
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* If there was trailing white space, it was not printed; |
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* so reset the cursor position accordingly. |
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*/ |
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vis -= vbl; |
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p->col = 0; |
p->col = 0; |
p->overstep = 0; |
p->overstep = 0; |
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if ( ! (TERMP_NOBREAK & p->flags)) { |
if ( ! (TERMP_NOBREAK & p->flags)) { |
p->viscol = 0; |
p->viscol = 0; |
endline(p); |
(*p->endline)(p); |
return; |
return; |
} |
} |
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if (TERMP_HANG & p->flags) { |
if (TERMP_HANG & p->flags) { |
/* We need one blank after the tag. */ |
/* We need one blank after the tag. */ |
p->overstep = /* LINTED */ |
p->overstep = (int)(vis - maxvis + (*p->width)(p, ' ')); |
vis - maxvis + 1; |
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/* |
/* |
* Behave exactly the same way as groff: |
* Behave exactly the same way as groff: |
Line 534 term_flushln(struct termp *p) |
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Line 289 term_flushln(struct termp *p) |
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*/ |
*/ |
if (p->overstep >= -1) { |
if (p->overstep >= -1) { |
assert((int)maxvis + p->overstep >= 0); |
assert((int)maxvis + p->overstep >= 0); |
/* LINTED */ |
maxvis += (size_t)p->overstep; |
maxvis += p->overstep; |
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} else |
} else |
p->overstep = 0; |
p->overstep = 0; |
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Line 543 term_flushln(struct termp *p) |
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Line 297 term_flushln(struct termp *p) |
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return; |
return; |
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/* Right-pad. */ |
/* Right-pad. */ |
if (maxvis > vis + /* LINTED */ |
if (maxvis > vis + |
((TERMP_TWOSPACE & p->flags) ? 1 : 0)) { |
((TERMP_TWOSPACE & p->flags) ? (*p->width)(p, ' ') : 0)) { |
p->viscol += maxvis - vis; |
p->viscol += maxvis - vis; |
advance(p, maxvis - vis); |
(*p->advance)(p, maxvis - vis); |
vis += (maxvis - vis); |
vis += (maxvis - vis); |
} else { /* ...or newline break. */ |
} else { /* ...or newline break. */ |
endline(p); |
(*p->endline)(p); |
p->viscol = p->rmargin; |
p->viscol = p->rmargin; |
advance(p, p->rmargin); |
(*p->advance)(p, p->rmargin); |
} |
} |
} |
} |
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Line 587 term_vspace(struct termp *p) |
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Line 341 term_vspace(struct termp *p) |
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term_newln(p); |
term_newln(p); |
p->viscol = 0; |
p->viscol = 0; |
endline(p); |
(*p->endline)(p); |
} |
} |
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static void |
static void |
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numbered(struct termp *p, const char *word, size_t len) |
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{ |
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char c; |
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if ('\0' != (c = mchars_num2char(word, len))) |
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encode(p, &c, 1); |
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} |
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static void |
spec(struct termp *p, const char *word, size_t len) |
spec(struct termp *p, const char *word, size_t len) |
{ |
{ |
const char *rhs; |
const char *rhs; |
size_t sz; |
size_t sz; |
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rhs = chars_a2ascii(p->symtab, word, len, &sz); |
rhs = mchars_spec2str(p->symtab, word, len, &sz); |
if (rhs) |
if (rhs) |
encode(p, rhs, sz); |
encode(p, rhs, sz); |
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else if (1 == len) |
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encode(p, word, len); |
} |
} |
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Line 609 res(struct termp *p, const char *word, size_t len) |
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Line 375 res(struct termp *p, const char *word, size_t len) |
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const char *rhs; |
const char *rhs; |
size_t sz; |
size_t sz; |
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rhs = chars_a2res(p->symtab, word, len, &sz); |
rhs = mchars_res2str(p->symtab, word, len, &sz); |
if (rhs) |
if (rhs) |
encode(p, rhs, sz); |
encode(p, rhs, sz); |
} |
} |
Line 688 term_fontpop(struct termp *p) |
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Line 454 term_fontpop(struct termp *p) |
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void |
void |
term_word(struct termp *p, const char *word) |
term_word(struct termp *p, const char *word) |
{ |
{ |
const char *sv, *seq; |
const char *seq; |
int sz; |
int sz; |
size_t ssz; |
size_t ssz; |
enum roffdeco deco; |
enum mandoc_esc esc; |
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sv = word; |
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if (word[0] && '\0' == word[1]) |
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switch (word[0]) { |
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case('.'): |
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/* FALLTHROUGH */ |
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case(','): |
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/* FALLTHROUGH */ |
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case(';'): |
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/* FALLTHROUGH */ |
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case(':'): |
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/* FALLTHROUGH */ |
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case('?'): |
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/* FALLTHROUGH */ |
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case('!'): |
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/* FALLTHROUGH */ |
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case(')'): |
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/* FALLTHROUGH */ |
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case(']'): |
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if ( ! (TERMP_IGNDELIM & p->flags)) |
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p->flags |= TERMP_NOSPACE; |
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break; |
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default: |
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break; |
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} |
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if ( ! (TERMP_NOSPACE & p->flags)) { |
if ( ! (TERMP_NOSPACE & p->flags)) { |
bufferc(p, ' '); |
if ( ! (TERMP_KEEP & p->flags)) { |
if (TERMP_SENTENCE & p->flags) |
if (TERMP_PREKEEP & p->flags) |
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p->flags |= TERMP_KEEP; |
bufferc(p, ' '); |
bufferc(p, ' '); |
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if (TERMP_SENTENCE & p->flags) |
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bufferc(p, ' '); |
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} else |
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bufferc(p, ASCII_NBRSP); |
} |
} |
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if ( ! (p->flags & TERMP_NONOSPACE)) |
if ( ! (p->flags & TERMP_NONOSPACE)) |
p->flags &= ~TERMP_NOSPACE; |
p->flags &= ~TERMP_NOSPACE; |
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else |
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p->flags |= TERMP_NOSPACE; |
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p->flags &= ~TERMP_SENTENCE; |
p->flags &= ~(TERMP_SENTENCE | TERMP_IGNDELIM); |
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/* FIXME: use strcspn. */ |
while ('\0' != *word) { |
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if ((ssz = strcspn(word, "\\")) > 0) |
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encode(p, word, ssz); |
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while (*word) { |
word += (int)ssz; |
if ('\\' != *word) { |
if ('\\' != *word) |
encode(p, word, 1); |
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word++; |
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continue; |
continue; |
} |
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seq = ++word; |
word++; |
sz = a2roffdeco(&deco, &seq, &ssz); |
esc = mandoc_escape(&word, &seq, &sz); |
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if (ESCAPE_ERROR == esc) |
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break; |
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switch (deco) { |
switch (esc) { |
case (DECO_RESERVED): |
case (ESCAPE_NUMBERED): |
res(p, seq, ssz); |
numbered(p, seq, sz); |
break; |
break; |
case (DECO_SPECIAL): |
case (ESCAPE_PREDEF): |
spec(p, seq, ssz); |
res(p, seq, sz); |
break; |
break; |
case (DECO_BOLD): |
case (ESCAPE_SPECIAL): |
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spec(p, seq, sz); |
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break; |
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case (ESCAPE_FONTBOLD): |
term_fontrepl(p, TERMFONT_BOLD); |
term_fontrepl(p, TERMFONT_BOLD); |
break; |
break; |
case (DECO_ITALIC): |
case (ESCAPE_FONTITALIC): |
term_fontrepl(p, TERMFONT_UNDER); |
term_fontrepl(p, TERMFONT_UNDER); |
break; |
break; |
case (DECO_ROMAN): |
case (ESCAPE_FONTROMAN): |
term_fontrepl(p, TERMFONT_NONE); |
term_fontrepl(p, TERMFONT_NONE); |
break; |
break; |
case (DECO_PREVIOUS): |
case (ESCAPE_FONTPREV): |
term_fontlast(p); |
term_fontlast(p); |
break; |
break; |
default: |
case (ESCAPE_NOSPACE): |
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if ('\0' == *word) |
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p->flags |= TERMP_NOSPACE; |
break; |
break; |
} |
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word += sz; |
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if (DECO_NOSPACE == deco && '\0' == *word) |
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p->flags |= TERMP_NOSPACE; |
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} |
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/* |
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* Note that we don't process the pipe: the parser sees it as |
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* punctuation, but we don't in terms of typography. |
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*/ |
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if (sv[0] && 0 == sv[1]) |
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switch (sv[0]) { |
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case('('): |
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/* FALLTHROUGH */ |
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case('['): |
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p->flags |= TERMP_NOSPACE; |
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break; |
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default: |
default: |
break; |
break; |
} |
} |
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} |
} |
} |
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Line 796 adjbuf(struct termp *p, size_t sz) |
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Line 532 adjbuf(struct termp *p, size_t sz) |
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while (sz >= p->maxcols) |
while (sz >= p->maxcols) |
p->maxcols <<= 2; |
p->maxcols <<= 2; |
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p->buf = realloc(p->buf, p->maxcols); |
p->buf = mandoc_realloc(p->buf, p->maxcols); |
if (NULL == p->buf) { |
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perror(NULL); |
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exit(EXIT_FAILURE); |
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} |
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} |
} |
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static void |
static void |
buffera(struct termp *p, const char *word, size_t sz) |
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{ |
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if (p->col + sz >= p->maxcols) |
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adjbuf(p, p->col + sz); |
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memcpy(&p->buf[(int)p->col], word, sz); |
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p->col += sz; |
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} |
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static void |
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bufferc(struct termp *p, char c) |
bufferc(struct termp *p, char c) |
{ |
{ |
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Line 839 encode(struct termp *p, const char *word, size_t sz) |
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Line 559 encode(struct termp *p, const char *word, size_t sz) |
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* character by character. |
* character by character. |
*/ |
*/ |
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if (TERMTYPE_PS == p->type) { |
if (TERMFONT_NONE == (f = term_fonttop(p))) { |
buffera(p, word, sz); |
if (p->col + sz >= p->maxcols) |
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adjbuf(p, p->col + sz); |
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memcpy(&p->buf[(int)p->col], word, sz); |
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p->col += sz; |
return; |
return; |
} else if (TERMFONT_NONE == (f = term_fonttop(p))) { |
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buffera(p, word, sz); |
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return; |
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} |
} |
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/* Pre-buffer, assuming worst-case. */ |
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if (p->col + 1 + (sz * 3) >= p->maxcols) |
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adjbuf(p, p->col + 1 + (sz * 3)); |
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for (i = 0; i < (int)sz; i++) { |
for (i = 0; i < (int)sz; i++) { |
if ( ! isgraph((u_char)word[i])) { |
if ( ! isgraph((u_char)word[i])) { |
bufferc(p, word[i]); |
p->buf[(int)p->col++] = word[i]; |
continue; |
continue; |
} |
} |
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if (TERMFONT_UNDER == f) |
if (TERMFONT_UNDER == f) |
bufferc(p, '_'); |
p->buf[(int)p->col++] = '_'; |
else |
else |
bufferc(p, word[i]); |
p->buf[(int)p->col++] = word[i]; |
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bufferc(p, 8); |
p->buf[(int)p->col++] = 8; |
bufferc(p, word[i]); |
p->buf[(int)p->col++] = word[i]; |
} |
} |
} |
} |
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size_t |
size_t |
term_vspan(const struct roffsu *su) |
term_len(const struct termp *p, size_t sz) |
{ |
{ |
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return((*p->width)(p, ' ') * sz); |
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} |
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size_t |
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term_strlen(const struct termp *p, const char *cp) |
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{ |
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size_t sz, rsz, i; |
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int ssz; |
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enum mandoc_esc esc; |
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const char *seq, *rhs; |
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/* |
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* Account for escaped sequences within string length |
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* calculations. This follows the logic in term_word() as we |
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* must calculate the width of produced strings. |
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*/ |
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sz = 0; |
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while ('\0' != *cp) |
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switch (*cp) { |
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case ('\\'): |
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++cp; |
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esc = mandoc_escape(&cp, &seq, &ssz); |
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if (ESCAPE_ERROR == esc) |
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return(sz); |
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switch (esc) { |
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case (ESCAPE_PREDEF): |
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rhs = mchars_res2str |
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(p->symtab, seq, ssz, &rsz); |
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break; |
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case (ESCAPE_SPECIAL): |
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rhs = mchars_spec2str |
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(p->symtab, seq, ssz, &rsz); |
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if (ssz != 1 || rhs) |
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break; |
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rhs = seq; |
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rsz = ssz; |
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break; |
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default: |
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rhs = NULL; |
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break; |
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} |
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if (NULL == rhs) |
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break; |
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for (i = 0; i < rsz; i++) |
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sz += (*p->width)(p, *rhs++); |
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break; |
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case (ASCII_NBRSP): |
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sz += (*p->width)(p, ' '); |
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cp++; |
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break; |
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case (ASCII_HYPH): |
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sz += (*p->width)(p, '-'); |
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cp++; |
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break; |
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default: |
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sz += (*p->width)(p, *cp++); |
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break; |
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} |
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return(sz); |
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} |
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/* ARGSUSED */ |
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size_t |
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term_vspan(const struct termp *p, const struct roffsu *su) |
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{ |
double r; |
double r; |
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switch (su->unit) { |
switch (su->unit) { |
Line 901 term_vspan(const struct roffsu *su) |
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Line 701 term_vspan(const struct roffsu *su) |
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size_t |
size_t |
term_hspan(const struct roffsu *su) |
term_hspan(const struct termp *p, const struct roffsu *su) |
{ |
{ |
double r; |
double v; |
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/* XXX: CM, IN, and PT are approximations. */ |
v = ((*p->hspan)(p, su)); |
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if (v < 0.0) |
switch (su->unit) { |
v = 0.0; |
case (SCALE_CM): |
return((size_t) /* LINTED */ |
r = 4 * su->scale; |
v); |
break; |
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case (SCALE_IN): |
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/* XXX: this is an approximation. */ |
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r = 10 * su->scale; |
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break; |
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case (SCALE_PC): |
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r = (10 * su->scale) / 6; |
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break; |
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case (SCALE_PT): |
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r = (10 * su->scale) / 72; |
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break; |
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case (SCALE_MM): |
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r = su->scale / 1000; /* FIXME: double-check. */ |
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break; |
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case (SCALE_VS): |
|
r = su->scale * 2 - 1; /* FIXME: double-check. */ |
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break; |
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default: |
|
r = su->scale; |
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break; |
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} |
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|
if (r < 0.0) |
|
r = 0.0; |
|
return((size_t)/* LINTED */ |
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r); |
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} |
} |
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