]> git.cameronkatri.com Git - mandoc.git/blobdiff - term_ps.c
Note discarding of \m, \M, and \s in COMPATIBILITY sections.
[mandoc.git] / term_ps.c
index 07432bf255817a7e4ff3ed8642df3de50145cb08..fb1ac6229da66e54d3677433f5df69904185340b 100644 (file)
--- a/term_ps.c
+++ b/term_ps.c
@@ -1,6 +1,6 @@
-/*     $Id: term_ps.c,v 1.25 2010/07/01 14:23:45 kristaps Exp $ */
+/*     $Id: term_ps.c,v 1.34 2010/07/13 23:53:20 schwarze Exp $ */
 /*
- * Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@bsd.lv>
+ * Copyright (c) 2010 Kristaps Dzonsons <kristaps@bsd.lv>
  *
  * Permission to use, copy, modify, and distribute this software for any
  * purpose with or without fee is hereby granted, provided that the above
@@ -27,6 +27,7 @@
 #include <stdlib.h>
 #include <string.h>
 #include <time.h>
+#include <unistd.h>
 
 #include "out.h"
 #include "main.h"
@@ -387,7 +388,7 @@ void *
 ps_alloc(char *outopts)
 {
        struct termp    *p;
-       size_t           pagex, pagey, margin, lineheight;
+       size_t           pagex, pagey, marginx, marginy, lineheight;
        const char      *toks[2];
        const char      *pp;
        char            *v;
@@ -404,8 +405,6 @@ ps_alloc(char *outopts)
        p->type = TERMTYPE_PS;
        p->width = ps_width;
        
-       p->engine.ps.scale = 11;
-
        toks[0] = "paper";
        toks[1] = NULL;
 
@@ -420,9 +419,6 @@ ps_alloc(char *outopts)
                        break;
                }
 
-       margin = PNT2AFM(p, 72);
-       lineheight = PNT2AFM(p, 12);
-
        /* Default to US letter (millimetres). */
 
        pagex = 216;
@@ -450,26 +446,42 @@ ps_alloc(char *outopts)
                        pagey = 356;
                } else if (2 != sscanf(pp, "%zux%zu", &pagex, &pagey))
                        fprintf(stderr, "%s: Unknown paper\n", pp);
-       }
+       } else if (NULL == pp)
+               pp = "letter";
+
+       /* 
+        * This MUST be defined before any PNT2AFM or AFM2PNT
+        * calculations occur.
+        */
+
+       p->engine.ps.scale = 11;
 
        /* Remember millimetres -> AFM units. */
 
        pagex = PNT2AFM(p, ((double)pagex * 2.834));
        pagey = PNT2AFM(p, ((double)pagey * 2.834));
 
-       assert(margin * 2 < pagex);
-       assert(margin * 2 < pagey);
+       /* Margins are 1/9 the page x and y. */
+
+       marginx = /* LINTED */
+               (size_t)((double)pagex / 9.0);
+       marginy = /* LINTED */
+               (size_t)((double)pagey / 9.0);
+
+       /* Line-height is 1.4em. */
+
+       lineheight = PNT2AFM(p, ((double)p->engine.ps.scale * 1.4));
 
        p->engine.ps.width = pagex;
        p->engine.ps.height = pagey;
-       p->engine.ps.header = pagey - (margin / 2);
-       p->engine.ps.top = pagey - margin;
-       p->engine.ps.footer = (margin / 2);
-       p->engine.ps.bottom = margin;
-       p->engine.ps.left = margin;
+       p->engine.ps.header = pagey - (marginy / 2) - (lineheight / 2);
+       p->engine.ps.top = pagey - marginy;
+       p->engine.ps.footer = (marginy / 2) - (lineheight / 2);
+       p->engine.ps.bottom = marginy;
+       p->engine.ps.left = marginx;
        p->engine.ps.lineheight = lineheight;
 
-       p->defrmargin = pagex - (margin * 2);
+       p->defrmargin = pagex - (marginx * 2);
        return(p);
 }
 
@@ -502,7 +514,7 @@ ps_printf(struct termp *p, const char *fmt, ...)
         * into our growable margin buffer.
         */
 
-       if ( ! (PS_MARGINS & p->engine.ps.psstate)) {
+       if ( ! (PS_MARGINS & p->engine.ps.flags)) {
                vprintf(fmt, ap);
                va_end(ap);
                return;
@@ -531,7 +543,7 @@ ps_putchar(struct termp *p, char c)
 
        /* See ps_printf(). */
 
-       if ( ! (PS_MARGINS & p->engine.ps.psstate)) {
+       if ( ! (PS_MARGINS & p->engine.ps.flags)) {
                putchar(c);
                return;
        }
@@ -555,12 +567,14 @@ ps_end(struct termp *p)
         * well as just one.
         */
 
-       assert(0 == p->engine.ps.psstate);
-       assert('\0' == p->engine.ps.last);
-       assert(p->engine.ps.psmarg && p->engine.ps.psmarg[0]);
-       printf("%s", p->engine.ps.psmarg);
-       p->engine.ps.pages++;
-       printf("showpage\n");
+       if ( ! (PS_NEWPAGE & p->engine.ps.flags)) {
+               assert(0 == p->engine.ps.flags);
+               assert('\0' == p->engine.ps.last);
+               assert(p->engine.ps.psmarg && p->engine.ps.psmarg[0]);
+               printf("%s", p->engine.ps.psmarg);
+               p->engine.ps.pages++;
+               printf("showpage\n");
+       }
 
        printf("%%%%Trailer\n");
        printf("%%%%Pages: %zu\n", p->engine.ps.pages);
@@ -585,7 +599,7 @@ ps_begin(struct termp *p)
        }
 
        p->engine.ps.psmargcur = 0;
-       p->engine.ps.psstate = PS_MARGINS;
+       p->engine.ps.flags = PS_MARGINS;
        p->engine.ps.pscol = p->engine.ps.left;
        p->engine.ps.psrow = p->engine.ps.header;
 
@@ -600,9 +614,9 @@ ps_begin(struct termp *p)
        (*p->footf)(p, p->argf);
        (*p->endline)(p);
 
-       p->engine.ps.psstate &= ~PS_MARGINS;
+       p->engine.ps.flags &= ~PS_MARGINS;
 
-       assert(0 == p->engine.ps.psstate);
+       assert(0 == p->engine.ps.flags);
        assert(p->engine.ps.psmarg);
        assert('\0' != p->engine.ps.psmarg[0]);
 
@@ -628,13 +642,10 @@ ps_begin(struct termp *p)
                printf(" %s", fonts[i].name);
        printf("\n%%%%EndComments\n");
 
-       printf("%%%%Page: %zu %zu\n", 
-                       p->engine.ps.pages + 1, 
-                       p->engine.ps.pages + 1);
-
-       ps_setfont(p, TERMFONT_NONE);
        p->engine.ps.pscol = p->engine.ps.left;
        p->engine.ps.psrow = p->engine.ps.top;
+       p->engine.ps.flags |= PS_NEWPAGE;
+       ps_setfont(p, TERMFONT_NONE);
 }
 
 
@@ -642,19 +653,36 @@ static void
 ps_pletter(struct termp *p, int c)
 {
        int              f;
+
+       /*
+        * If we haven't opened a page context, then output that we're
+        * in a new page and make sure the font is correctly set.
+        */
+
+       if (PS_NEWPAGE & p->engine.ps.flags) {
+               printf("%%%%Page: %zu %zu\n", 
+                               p->engine.ps.pages + 1, 
+                               p->engine.ps.pages + 1);
+               ps_printf(p, "/%s %zu selectfont\n", 
+                               fonts[(int)p->engine.ps.lastf].name, 
+                               p->engine.ps.scale);
+               p->engine.ps.flags &= ~PS_NEWPAGE;
+       }
        
        /*
         * If we're not in a PostScript "word" context, then open one
         * now at the current cursor.
         */
 
-       if ( ! (PS_INLINE & p->engine.ps.psstate)) {
+       if ( ! (PS_INLINE & p->engine.ps.flags)) {
                ps_printf(p, "%zu %zu moveto\n(", 
                                AFM2PNT(p, p->engine.ps.pscol),
                                AFM2PNT(p, p->engine.ps.psrow));
-               p->engine.ps.psstate |= PS_INLINE;
+               p->engine.ps.flags |= PS_INLINE;
        }
 
+       assert( ! (PS_NEWPAGE & p->engine.ps.flags));
+
        /*
         * We need to escape these characters as per the PostScript
         * specification.  We would also escape non-graphable characters
@@ -700,11 +728,11 @@ ps_pclose(struct termp *p)
         * or anything).
         */
 
-       if ( ! (PS_INLINE & p->engine.ps.psstate))
+       if ( ! (PS_INLINE & p->engine.ps.flags))
                return;
        
        ps_printf(p, ") show\n");
-       p->engine.ps.psstate &= ~PS_INLINE;
+       p->engine.ps.flags &= ~PS_INLINE;
 }
 
 
@@ -729,7 +757,7 @@ ps_fclose(struct termp *p)
                p->engine.ps.last = '\0';
        }
 
-       if ( ! (PS_INLINE & p->engine.ps.psstate))
+       if ( ! (PS_INLINE & p->engine.ps.flags))
                return;
 
        ps_pclose(p);
@@ -814,7 +842,16 @@ ps_endline(struct termp *p)
         * lines, we'll do nasty stuff. 
         */
 
-       if (PS_MARGINS & p->engine.ps.psstate)
+       if (PS_MARGINS & p->engine.ps.flags)
+               return;
+
+       /* Left-justify. */
+
+       p->engine.ps.pscol = p->engine.ps.left;
+
+       /* If we haven't printed anything, return. */
+
+       if (PS_NEWPAGE & p->engine.ps.flags)
                return;
 
        /*
@@ -822,7 +859,6 @@ ps_endline(struct termp *p)
         * showpage and restart our row.
         */
 
-       p->engine.ps.pscol = p->engine.ps.left;
        if (p->engine.ps.psrow >= p->engine.ps.lineheight + 
                        p->engine.ps.bottom) {
                p->engine.ps.psrow -= p->engine.ps.lineheight;
@@ -833,10 +869,9 @@ ps_endline(struct termp *p)
        printf("%s", p->engine.ps.psmarg);
        printf("showpage\n");
        p->engine.ps.pages++;
-       printf("%%%%Page: %zu %zu\n", 
-                       p->engine.ps.pages + 1, 
-                       p->engine.ps.pages + 1);
        p->engine.ps.psrow = p->engine.ps.top;
+       assert( ! (PS_NEWPAGE & p->engine.ps.flags));
+       p->engine.ps.flags |= PS_NEWPAGE;
 }
 
 
@@ -845,9 +880,18 @@ ps_setfont(struct termp *p, enum termfont f)
 {
 
        assert(f < TERMFONT__MAX);
+       p->engine.ps.lastf = f;
+       
+       /*
+        * If we're still at the top of the page, let the font-setting
+        * be delayed until we actually have stuff to print.
+        */
+
+       if (PS_NEWPAGE & p->engine.ps.flags)
+               return;
+
        ps_printf(p, "/%s %zu selectfont\n", 
                        fonts[(int)f].name, p->engine.ps.scale);
-       p->engine.ps.lastf = f;
 }