shithub: neatpost

Info  •  Files  •  Log  •  Branches

post: include eps files with "x X eps epsfile [width [height]]"

In neatroff \X'esp epsfile' includes the given EPS file with its lower
left corner at the current point.  For \X'epsfile w h' the EPS file is
scaled such that the width of its bounding box equals w and its height
equals h.  If h is missing, the height of the bounding box is scaled
as its width.

--- a/out.c

+++ b/out.c

@@ -245,3 +245,49 @@

 		o_h + h1 + h2, o_v + v1 + v2);

 	outrel(h1, v1);

 }

+

+void outeps(char *spec)

+{

+	char eps[1 << 12];

+	char buf[1 << 12];

+	int llx, lly, urx, ury;

+	int hwid, vwid;

+	FILE *filp;

+	int nspec, nbb;

+	nspec = sscanf(spec, "%s %d %d", eps, &hwid, &vwid);

+	if (nspec < 1)

+		return;

+	if (!(filp = fopen(eps, "r")))

+		return;

+	if (!fgets(buf, sizeof(buf), filp) ||

+			(strcmp(buf, "%!PS-Adobe-2.0 EPSF-2.0\n") &&

+			strcmp(buf, "%!PS-Adobe-3.0 EPSF-3.0\n"))) {

+		fclose(filp);

+		return;

+	}

+	nbb = 0;

+	while (fgets(buf, sizeof(buf), filp))

+		if (!strncmp(buf, "%%BoundingBox: ", 15))

+			if ((nbb = sscanf(buf + 15, "%d %d %d %d",

+					&llx, &lly, &urx, &ury)) == 4)

+				break;

+	fclose(filp);

+	if (nbb < 4)		/* no BoundingBox comment */

+		return;

+	if (nspec == 1)

+		hwid = urx - llx;

+	if (nspec <= 2)

+		vwid = (ury - lly) * hwid / (urx - llx);

+	/* output the EPS file */

+	o_flush();

+	out_fontup(o_f);

+	outf("%d %d %d %d %d %d %d %d EPSFBEG\n",

+		llx, lly, hwid, urx - llx, vwid, ury - lly, o_h, o_v);

+	outf("%%%%BeginDocument: %s\n", eps);

+	filp = fopen(eps, "r");

+	while (fgets(buf, sizeof(buf), filp))

+		out("%s", buf);

+	fclose(filp);

+	outf("%%%%EndDocument\n");

+	outf("EPSFEND\n");

+}

--- a/post.c

+++ b/post.c

@@ -211,6 +211,8 @@

 		out("%s\n", arg);

 	if (!strcmp("rotate", cmd))

 		outrotate(atoi(arg));

+	if (!strcmp("eps", cmd))

+		outeps(arg);

 	if (!strcmp("BeginObject", cmd))

 		drawmbeg(arg);

 	if (!strcmp("EndObject", cmd))

--- a/post.h

+++ b/post.h

@@ -71,6 +71,7 @@

 void outsize(int s);

 void outcolor(int c);

 void outrotate(int deg);

+void outeps(char *eps);

 void outpage(void);

 void outmnt(int f);

 extern char o_fonts[];

--- a/ps.c

+++ b/ps.c

@@ -95,6 +95,24 @@

 	"	x1 x2 add 2 div\n"

 	"	y1 y2 add -2 div\n"

 	"	curveto\n"

+	"} bind def\n"

+	"% including EPS files\n"

+	"/EPSFBEG {\n"

+	"	/epsf_state save def\n"

+	"	neg translate\n"

+	"	div 3 1 roll div exch scale\n"

+	"	neg exch neg exch translate\n"

+	"	/dict_count countdictstack def\n"

+	"	/op_count count 1 sub def\n"

+	"	userdict begin\n"

+	"	/showpage { } def\n"

+	"	0 setgray 0 setlinecap 1 setlinewidth 0 setlinejoin\n"

+	"	10 setmiterlimit [ ] 0 setdash newpath\n"

+	"} bind def\n"

+	"/EPSFEND {\n"

+	"	count op_count sub {pop} repeat\n"

+	"	countdictstack dict_count sub {end} repeat\n"

+	"	epsf_state restore\n"

 	"} bind def\n";

 /* pagewidth and pageheight are in tenths of a millimetre */

-- 

⑨