/*  * This file is part of the UCB release of Plan 9. It is subject to the license * terms in the LICENSE file found in the top-level directory of this * distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No * part of the UCB release of Plan 9, including this file, may be copied, * modified, propagated, or distributed except according to the terms contained * in the LICENSE file. */ #include <u.h>#include <libc.h>#include <draw.h>#include <memdraw.h>#include "pslib.h" #define HDLEN	60 int dpi = -1;int debug = 0;int landscape = 0;char *file = "<stdin>"; int paperlength = 11*72;int paperwidth = 612;	/* 8.5*72 */ voiderror(char *s){	fprint(2, "p9bitpost: can't %s file %s: %r\n", s, file);	exits("error");} voidmain(int argc, char *argv[]) {	int i, fd = 0;	double xmag = 1.0, ymag = 1.0;	char *optstr, *Patch;	Memimage *memimage; 	Patch = nil;	for (i=1; i<argc; i++) {		if (*argv[i] != '-') break;		switch(argv[i][1]) {		case 'b':			if (argv[i][2] == '\0')				dpi = atoi(argv[++i]);			else				dpi = atoi(&(argv[i][2]));			break;		case 'd':			debug = 1;			break;		case 'm':			if (argv[i][2] == '\0')				optstr = argv[++i];			else				optstr = &(argv[i][2]);			if ((optstr=strtok(optstr, " ,")) != 0)				xmag = ymag = atof(optstr);			if ((optstr=strtok(0, " ,")) != 0)				ymag = atof(optstr);			break;		case 'L':			landscape = 1;			break;		case 'P':			if (argv[i][2] == '\0')				Patch = argv[++i];			else				Patch = &(argv[i][2]);			break;		case 'p':			optstr = argv[++i];			if(optstr == nil)				goto Usage;			paperlength = 72*atof(optstr);			optstr = argv[++i];			if(optstr == nil)				goto Usage;			paperwidth = 72*atof(optstr);			if(paperlength < 72 || paperwidth < 72)				goto Usage;			break;		default:		Usage:			fprint(2, "usage: %s [-b dpi] [-m magnification] [-L] [-P postscript_patch_string] [-p paperlength paperwidth (in inches)] inputfile\n", argv[0]);			exits("usage");		}	} 	if (i < argc) {		file = argv[i];		fd = open(file, OREAD);		if (fd < 0)			error("open");	} 	memimageinit();	memimage = readmemimage(fd);	if(memimage == nil)		error("alloc memory for"); 	psinit(0, 0);	if(xmag != 1.0)		psopt("xmagnification", &xmag);	if(ymag != 1.0)		psopt("ymagnification", &ymag);	if(landscape)		psopt("landscape", &landscape);	if(Patch)		psopt("Patch", &Patch);	image2psfile(1, memimage, dpi);	exits("");}