diff options
Diffstat (limited to 'term.c')
| -rw-r--r-- | term.c | 253 |
1 files changed, 12 insertions, 241 deletions
@@ -22,12 +22,10 @@ #include <assert.h> #include <ctype.h> -#include <getopt.h> #include <stdint.h> #include <stdio.h> #include <stdlib.h> #include <string.h> -#include <time.h> #include "mandoc.h" #include "chars.h" @@ -37,64 +35,12 @@ #include "mdoc.h" #include "main.h" -#define PS_CHAR_WIDTH 6 -#define PS_CHAR_HEIGHT 12 -#define PS_CHAR_TOPMARG (792 - 24) -#define PS_CHAR_TOP (PS_CHAR_TOPMARG - 36) -#define PS_CHAR_LEFT 36 -#define PS_CHAR_BOTMARG 24 -#define PS_CHAR_BOT (PS_CHAR_BOTMARG + 36) - static void spec(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 bufferc(struct termp *, char); static void adjbuf(struct termp *p, size_t); static void encode(struct termp *, const char *, size_t); -static void advance(struct termp *, size_t); -static void endline(struct termp *); -static void letter(struct termp *, char); -static void pageopen(struct termp *); - - -void * -ascii_alloc(char *outopts) -{ - struct termp *p; - const char *toks[2]; - char *v; - - if (NULL == (p = term_alloc(TERMENC_ASCII))) - return(NULL); - - p->type = TERMTYPE_CHAR; - - toks[0] = "width"; - toks[1] = NULL; - - while (outopts && *outopts) - switch (getsubopt(&outopts, UNCONST(toks), &v)) { - case (0): - p->defrmargin = (size_t)atoi(v); - break; - default: - break; - } - - /* Enforce a lower boundary. */ - if (p->defrmargin < 58) - p->defrmargin = 58; - - return(p); -} - - -void -ascii_free(void *arg) -{ - - term_free((struct termp *)arg); -} void @@ -110,61 +56,6 @@ term_free(struct termp *p) } -/* - * Push a single letter into our output engine. - */ -static void -letter(struct termp *p, char c) -{ - - if (TERMTYPE_CHAR == p->type) { - /* - * If using the terminal device, just push the letter - * out into the screen. - */ - putchar(c); - return; - } - - if ( ! (PS_INLINE & p->psstate)) { - /* - * If we're not in a PostScript "word" context, then - * open one now at the current cursor. - */ - printf("%zu %zu moveto\n", p->pscol, p->psrow); - putchar('('); - p->psstate |= PS_INLINE; - } - - /* - * We need to escape these characters as per the PostScript - * specification. We would also escape non-graphable characters - * (like tabs), but none of them would get to this point and - * it's superfluous to abort() on them. - */ - - switch (c) { - case ('('): - /* FALLTHROUGH */ - case (')'): - /* FALLTHROUGH */ - case ('\\'): - putchar('\\'); - break; - default: - break; - } - - /* Write the character and adjust where we are on the page. */ - putchar(c); - p->pscol += PS_CHAR_WIDTH; -} - - -/* - * Begin a "terminal" context. Since terminal encompasses PostScript, - * the actual terminal, etc., there are a few things we can do here. - */ void term_begin(struct termp *p, term_margin head, term_margin foot, const void *arg) @@ -173,64 +64,7 @@ term_begin(struct termp *p, term_margin head, p->headf = head; p->footf = foot; p->argf = arg; - - if (TERMTYPE_CHAR == p->type) { - /* Emit the header and be done. */ - (*p->headf)(p, p->argf); - return; - } - - /* - * Emit the standard PostScript prologue, set our initial page - * position, then run pageopen() on the initial page. - */ - - printf("%s\n", "%!PS"); - printf("%s\n", "/Courier"); - printf("%s\n", "10 selectfont"); - - p->pspage = 1; - p->psstate = 0; - pageopen(p); -} - - -/* - * Open a page. This is only used for -Tps at the moment. It opens a - * page context, printing the header and the footer. THE OUTPUT BUFFER - * MUST BE EMPTY. If it is not, output will ghost on the next line and - * we'll be all gross and out of state. - */ -static void -pageopen(struct termp *p) -{ - - assert(TERMTYPE_PS == p->type); - assert(0 == p->psstate); - - p->pscol = PS_CHAR_LEFT; - p->psrow = PS_CHAR_TOPMARG; - p->psstate |= PS_MARGINS; - - (*p->headf)(p, p->argf); - endline(p); - - p->psstate &= ~PS_MARGINS; - assert(0 == p->psstate); - - p->pscol = PS_CHAR_LEFT; - p->psrow = PS_CHAR_BOTMARG; - p->psstate |= PS_MARGINS; - - (*p->footf)(p, p->argf); - endline(p); - - p->psstate &= ~PS_MARGINS; - assert(0 == p->psstate); - - p->pscol = PS_CHAR_LEFT; - p->psrow = PS_CHAR_TOP; - + (*p->begin)(p); } @@ -238,70 +72,7 @@ void term_end(struct termp *p) { - if (TERMTYPE_CHAR == p->type) { - (*p->footf)(p, p->argf); - return; - } - - printf("%s\n", "%%END"); -} - - -static void -endline(struct termp *p) -{ - - if (TERMTYPE_CHAR == p->type) { - putchar('\n'); - return; - } - - if (PS_INLINE & p->psstate) { - printf(") show\n"); - p->psstate &= ~PS_INLINE; - } - - if (PS_MARGINS & p->psstate) - return; - - p->pscol = PS_CHAR_LEFT; - if (p->psrow >= PS_CHAR_HEIGHT + PS_CHAR_BOT) { - p->psrow -= PS_CHAR_HEIGHT; - return; - } - - /* - * XXX: can't run pageopen() until we're certain a flushln() has - * occured, else the buf will reopen in an awkward state on the - * next line. - */ - printf("showpage\n"); - p->psrow = PS_CHAR_TOP; -} - - -/* - * Advance the output engine by a certain amount of whitespace. - */ -static void -advance(struct termp *p, size_t len) -{ - size_t i; - - if (TERMTYPE_CHAR == p->type) { - /* Just print whitespace on the terminal. */ - for (i = 0; i < len; i++) - putchar(' '); - return; - } - - if (PS_INLINE & p->psstate) { - /* Dump out any existing line scope. */ - printf(") show\n"); - p->psstate &= ~PS_INLINE; - } - - p->pscol += len ? len * PS_CHAR_WIDTH : 0; + (*p->end)(p); } @@ -438,10 +209,10 @@ term_flushln(struct termp *p) */ if (vend > bp && 0 == jhy && vis > 0) { vend -= vis; - endline(p); + (*p->endline)(p); if (TERMP_NOBREAK & p->flags) { p->viscol = p->rmargin; - advance(p, p->rmargin); + (*p->advance)(p, p->rmargin); vend += p->rmargin - p->offset; } else { p->viscol = 0; @@ -485,15 +256,15 @@ term_flushln(struct termp *p) * so write preceding white space now. */ if (vbl) { - advance(p, vbl); + (*p->advance)(p, vbl); p->viscol += vbl; vbl = 0; } if (ASCII_HYPH == p->buf[i]) - letter(p, '-'); + (*p->letter)(p, '-'); else - letter(p, p->buf[i]); + (*p->letter)(p, p->buf[i]); p->viscol += 1; } @@ -506,7 +277,7 @@ term_flushln(struct termp *p) if ( ! (TERMP_NOBREAK & p->flags)) { p->viscol = 0; - endline(p); + (*p->endline)(p); return; } @@ -539,12 +310,12 @@ term_flushln(struct termp *p) if (maxvis > vis + /* LINTED */ ((TERMP_TWOSPACE & p->flags) ? 1 : 0)) { p->viscol += maxvis - vis; - advance(p, maxvis - vis); + (*p->advance)(p, maxvis - vis); vis += (maxvis - vis); } else { /* ...or newline break. */ - endline(p); + (*p->endline)(p); p->viscol = p->rmargin; - advance(p, p->rmargin); + (*p->advance)(p, p->rmargin); } } @@ -580,7 +351,7 @@ term_vspace(struct termp *p) term_newln(p); p->viscol = 0; - endline(p); + (*p->endline)(p); } |