ref: c6cca8873d5a2f4fa5682984d5ac454dcf4d3ec3
parent: 0df35af1c2bbe3ebf58e9fa93abf3a609b4da6ee
author: Ali Gholami Rudi <ali@rudi.ir>
date: Mon Jun 16 20:41:07 EDT 2014
post: add -p for specifying paper size Valid arguments of -p are ISO paper sizes (e.g., a4), custom paper sizes in millimetres (e.g., 210x297), and other predefined paper sizes like letter. Also -w specifies drawing line thickness as in Groff.
--- a/post.c
+++ b/post.c
@@ -11,7 +11,10 @@
#include <string.h>
#include "post.h"
-static int o_pg;
+static int ps_pagewidth = 216; /* page width */
+static int ps_pageheight = 279; /* page height */
+static int ps_linewidth = 40; /* drawing line thickness in thousandths of an em */
+static int o_pages; /* output pages */
static int next(void)
{@@ -233,7 +236,7 @@
fprintf(stderr, "neatpost: cannot open device %s\n", devname);
exit(1);
}
- ps_header();
+ ps_header(ps_pagewidth, ps_pageheight, ps_linewidth);
break;
case 'T':
nextword(devname);
@@ -291,10 +294,10 @@
outc(cs);
break;
case 'p':
- if (o_pg)
- ps_pageend(o_pg);
- o_pg = nextnum();
- ps_pagebeg(o_pg);
+ if (o_pages)
+ ps_pageend(o_pages);
+ o_pages = nextnum();
+ ps_pagebeg(o_pages);
outpage();
break;
case 'w':
@@ -323,14 +326,57 @@
while ((c = next()) >= 0)
if (!isspace(c))
postcmd(c);
- if (o_pg)
- ps_pageend(o_pg);
+ if (o_pages)
+ ps_pageend(o_pages);
}
+#define ISODIM(n, d1, d2) ((((n) & 1) ? d2 : d1) >> (n >> 1))
+
+static void setpagesize(char *s)
+{+ int d1, d2, n;
+ /* predefined paper sizes */
+ if (!strcmp("letter", s)) {+ ps_pagewidth = 216;
+ ps_pageheight = 279;
+ return;
+ }
+ /* custom paper size in mm, like 210x297 for a4 */
+ if (isdigit(s[0]) && strchr(s, 'x')) {+ ps_pagewidth = atoi(s);
+ ps_pageheight = atoi(strchr(s, 'x') + 1);
+ return;
+ }
+ /* ISO paper sizes */
+ if (!isdigit(s[1]))
+ return;
+ n = s[1] - '0';
+ switch (tolower(s[0])) {+ case 'a':
+ d1 = 841;
+ d2 = 1189;
+ break;
+ case 'b':
+ d1 = 1000;
+ d2 = 1414;
+ break;
+ case 'c':
+ d1 = 917;
+ d2 = 1297;
+ break;
+ default:
+ return;
+ }
+ ps_pagewidth = ((n & 1) ? d2 : d1) >> ((n + 1) >> 1);
+ ps_pageheight = ((n & 1) ? d1 : d2) >> (n >> 1);
+}
+
static char *usage =
- "Usage: neatpost [options] <input >output\n\n"
+ "Usage: neatpost [options] <input >output\n"
"Options:\n"
- " -Fdir \tset font directory (" TROFFFDIR ")\n";+ " -F dir \tset font directory (" TROFFFDIR ")\n"+ " -p size \tset paper size (a4)\n"
+ " -w lwid \tdrawing line thickness in thousandths of an em\n";
int main(int argc, char *argv[])
{@@ -338,6 +384,10 @@
for (i = 1; i < argc; i++) { if (argv[i][0] == '-' && argv[i][1] == 'F') {strcpy(devpath, argv[i][2] ? argv[i] + 2 : argv[++i]);
+ } else if (argv[i][0] == '-' && argv[i][1] == 'p') {+ setpagesize(argv[i][2] ? argv[i] + 2 : argv[++i]);
+ } else if (argv[i][0] == '-' && argv[i][1] == 'w') {+ ps_linewidth = atoi(argv[i][2] ? argv[i] + 2 : argv[++i]);
} else { printf("%s", usage);return 0;
@@ -344,6 +394,6 @@
}
}
post();
- ps_trailer(o_pg, o_fonts);
+ ps_trailer(o_pages, o_fonts);
return 0;
}
--- a/post.h
+++ b/post.h
@@ -85,7 +85,7 @@
void draws(int h1, int v1, int h2, int v2);
/* postscript functions */
-void ps_header(void);
+void ps_header(int pagewidth, int pageheight, int linewidth);
void ps_trailer(int pages, char *fonts);
void ps_pagebeg(int n);
void ps_pageend(int n);
--- a/ps.c
+++ b/ps.c
@@ -25,9 +25,6 @@
}
static char *prolog =
- "/linewidth .4 def\n"
- "/pagesize [612 792] def\n"
- "\n"
"/setup {\n" " counttomark 2 idiv {def} repeat pop\n"" /scaling 72 resolution div def\n"
@@ -119,7 +116,7 @@
" curveto\n"
"} bind def\n";
-void ps_header(void)
+void ps_header(int pagewidth, int pageheight, int linewidth)
{ out("%%!PS-Adobe-2.0\n"); out("%%%%Version: 1.0\n");@@ -130,6 +127,9 @@
out("%%%%BeginProlog\n"); out("/resolution %d def\n", dev_res);+ out("/pagesize [%d %d] def\n", (pagewidth * 720 + 127) / 254,+ (pageheight * 720 + 127) / 254);
+ out("/linewidth %d.%02d def\n\n", linewidth / 100, linewidth % 100); out("%s", prolog); out("%%%%EndProlog\n"); out("%%%%BeginSetup\n");