version 1.145, 2010/06/08 13:22:37 |
version 1.156, 2010/06/30 12:30:36 |
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/* $Id$ */ |
/* $Id$ */ |
/* |
/* |
* Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@kth.se> |
* Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@bsd.lv> |
* |
* |
* 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" |
#include "chars.h" |
#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 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); |
static void buffera(struct termp *, const char *, size_t); |
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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struct termp *p; |
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const char *toks[2]; |
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char *v; |
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if (NULL == (p = term_alloc(TERMENC_ASCII))) |
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return(NULL); |
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p->type = TERMTYPE_CHAR; |
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toks[0] = "width"; |
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toks[1] = NULL; |
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while (outopts && *outopts) |
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switch (getsubopt(&outopts, UNCONST(toks), &v)) { |
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case (0): |
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p->defrmargin = (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 a lower boundary. */ |
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if (p->defrmargin < 58) |
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p->defrmargin = 58; |
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return(p); |
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} |
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void |
void |
ascii_free(void *arg) |
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{ |
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term_free((struct termp *)arg); |
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} |
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void |
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term_free(struct termp *p) |
term_free(struct termp *p) |
{ |
{ |
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Line 110 term_free(struct termp *p) |
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Line 54 term_free(struct termp *p) |
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} |
} |
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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 173 term_begin(struct termp *p, term_margin head, |
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Line 62 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 |
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endline(struct termp *p) |
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{ |
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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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struct termp * |
struct termp * |
term_alloc(enum termenc enc) |
term_alloc(enum termenc enc) |
{ |
{ |
Line 316 term_alloc(enum termenc enc) |
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Line 85 term_alloc(enum termenc enc) |
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exit(EXIT_FAILURE); |
exit(EXIT_FAILURE); |
} |
} |
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p->tabwidth = 5; |
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p->enc = enc; |
p->enc = enc; |
p->defrmargin = 78; |
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return(p); |
return(p); |
} |
} |
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Line 366 term_flushln(struct termp *p) |
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Line 133 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 */ |
int j; /* temporary loop index for p->buf */ |
int jhy; /* last hyphen before line overflow */ |
int jhy; /* last hyph before overflow w/r/t j */ |
size_t maxvis, mmax; |
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 393 term_flushln(struct termp *p) |
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Line 161 term_flushln(struct termp *p) |
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*/ |
*/ |
vbl = p->flags & TERMP_NOLPAD ? 0 : p->offset; |
vbl = p->flags & TERMP_NOLPAD ? 0 : p->offset; |
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/* |
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* FIXME: if bp is zero, we still output the first word before |
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* breaking the line. |
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*/ |
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vis = vend = i = 0; |
vis = vend = i = 0; |
while (i < (int)p->col) { |
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while (i < (int)p->col) { |
/* |
/* |
* 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++) { |
for (j = i; j < (int)p->col; j++) { |
if ('\t' != p->buf[j]) |
if ('\t' != p->buf[j]) |
break; |
break; |
vend = (vis/p->tabwidth+1)*p->tabwidth; |
vend = (vis / p->tabwidth + 1) * p->tabwidth; |
vbl += vend - vis; |
vbl += vend - vis; |
vis = vend; |
vis = vend; |
} |
} |
Line 423 term_flushln(struct termp *p) |
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Line 187 term_flushln(struct termp *p) |
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for (jhy = 0; j < (int)p->col; j++) { |
for (jhy = 0; j < (int)p->col; j++) { |
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 438 term_flushln(struct termp *p) |
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Line 210 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 469 term_flushln(struct termp *p) |
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Line 241 term_flushln(struct termp *p) |
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break; |
break; |
if (' ' == p->buf[i]) { |
if (' ' == p->buf[i]) { |
while (' ' == p->buf[i]) { |
while (' ' == p->buf[i]) { |
vbl++; |
vbl += (*p->width)(p, p->buf[i]); |
i++; |
i++; |
} |
} |
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 485 term_flushln(struct termp *p) |
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Line 257 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; |
vend += vbl; |
vis = vend; |
vis = vend; |
Line 506 term_flushln(struct termp *p) |
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Line 279 term_flushln(struct termp *p) |
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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 = /* LINTED */ |
vis - maxvis + 1; |
vis - maxvis + (*p->width)(p, ' '); |
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/* |
/* |
* Behave exactly the same way as groff: |
* Behave exactly the same way as groff: |
Line 537 term_flushln(struct termp *p) |
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Line 310 term_flushln(struct termp *p) |
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/* Right-pad. */ |
/* Right-pad. */ |
if (maxvis > vis + /* LINTED */ |
if (maxvis > vis + /* LINTED */ |
((TERMP_TWOSPACE & p->flags) ? 1 : 0)) { |
((TERMP_TWOSPACE & p->flags) ? |
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(*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 580 term_vspace(struct termp *p) |
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Line 354 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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Line 713 term_word(struct termp *p, const char *word) |
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Line 487 term_word(struct termp *p, const char *word) |
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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)) |
Line 832 encode(struct termp *p, const char *word, size_t sz) |
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Line 611 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); |
buffera(p, word, 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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for (i = 0; i < (int)sz; i++) { |
for (i = 0; i < (int)sz; i++) { |
Line 858 encode(struct termp *p, const char *word, size_t sz) |
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Line 634 encode(struct termp *p, const char *word, size_t sz) |
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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; |
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for (sz = 0; *cp; cp++) |
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sz += (*p->width)(p, *cp); |
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return(sz); |
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} |
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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 894 term_vspan(const struct roffsu *su) |
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Line 690 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; |
|
case (SCALE_VS): |
|
r = su->scale * 2 - 1; /* FIXME: double-check. */ |
|
break; |
|
default: |
|
r = su->scale; |
|
break; |
|
} |
|
|
|
if (r < 0.0) |
|
r = 0.0; |
|
return((size_t)/* LINTED */ |
|
r); |
|
} |
} |
|
|
|
|