Rename branch.

--HG--
branch : unlabeled-1.2.1-branch

util/ack/pc/em_pc.c

@@ -0,0 +1,690 @@
+/*
+ * (c) copyright 1983 by the Vrije Universiteit, Amsterdam, The Netherlands.
+ *
+ *          This product is part of the Amsterdam Compiler Kit.
+ *
+ * Permission to use, sell, duplicate or disclose this software must be
+ * obtained in writing. Requests for such permissions may be sent to
+ *
+ *      Dr. Andrew S. Tanenbaum
+ *      Wiskundig Seminarium
+ *      Vrije Universiteit
+ *      Postbox 7161
+ *      1007 MC Amsterdam
+ *      The Netherlands
+ *
+ */
+
+/*
+ * put all the pieces of the pascal part of the EM project together
+ *      original author: Johan Stevenson, Vrije Universiteit, Amsterdam
+ *      heavily modified by: Ed Keizer, Vrije Universiteit, Amsterdam
+ */
+
+#include        <stdio.h>
+#include        <signal.h>
+#include        <sys/types.h>
+#include        <sys/dir.h>
+#include        <em_path.h>
+#include        <pc_size.h>
+#include        <local.h>
+
+#define	MAX_FLAG		40	/* The Max. no of '{' flags allowed */
+
+#define void                    int
+
+char	def_pc_path[200] ;
+char	def_err_path[200] ;
+
+char	*pc_path	=	def_pc_path ;
+char    *err_path       =	def_err_path ;
+
+int     toterr;
+int     parent;
+
+char    *eeflag;
+char    *vvflag = "-V";
+int	no_pemflag = 0 ;
+char    *pemflag[MAX_FLAG];
+char    *eflag;
+char    *wflag;
+
+int     sizes[sz_last+1] = {
+	2,      /* sz_addr */
+	8,      /* sz_real */
+	0,      /* sz_head */
+	512,    /* sz_buff */
+	4096,   /* sz_mset */
+	2,      /* sz_iset */
+};
+
+#define CALLSIZE                60
+char    *callvector[CALLSIZE];
+char    **av;
+int     ac;
+int     fileargs;               /* number of recognized, processed args */
+int     flagargs;
+char    *progname;
+char    *source;
+
+#define CHARSIZE                2500
+#define CHARMARG                50
+char    charbuf[CHARSIZE];
+char    *charp                  = charbuf;
+
+char    *tmp_dir                = TMP_DIR;
+char    *unique                 = "pcXXXXXX";
+
+char    sigs[] = {
+	SIGHUP,
+	SIGINT,
+	SIGTERM,
+	0
+};
+
+/*
+ * forward function declarations
+ */
+void    finish();
+void    pem();
+int     list();
+char    *flag();
+char    *tempfile();
+char    **initvector();
+char    *basename();
+
+/*
+ * used library routines and data
+ */
+
+extern  char    *sys_errlist[];
+extern  int     errno;
+
+int     atoi();
+void    exit();
+void    sleep();
+void    execv();
+char    *sbrk();
+int     chdir();
+int     fork();
+int     wait();
+int     getpid();
+int     open();
+int     close();
+int     read();
+
+main(argc,argv) char **argv; {
+	register char *p;
+	char *files[3] ;
+
+	for (p = sigs; *p; p++)
+		if (signal(*p,finish) == SIG_IGN)
+			signal(*p,SIG_IGN);
+	ac = argc;
+	av = argv;
+	progname = *av++;
+	init();
+	while ( --ac>0 ) {
+		p = *av++;
+		if (*p == '-') {
+			flagargs++;
+			p = flag(p);
+		} else {
+			if ( fileargs>=3 ) fatal("Too many file arguments") ;
+			files[fileargs++]= p;
+		}
+	}
+	if ( fileargs!=3 ) fatal("Not enough arguments") ;
+	source=files[2] ;
+	pem(files[0],files[1]) ;
+	finish();
+}
+
+char *flag(f) char *f; {
+	register char *p;
+
+	p = f+1;
+	switch (*p++) {
+	case 'e':
+		eflag = f;
+		break;
+	case 'E':
+		eeflag = f;
+		break;
+	case 'w':
+		wflag = f;
+		break;
+	case 'V':
+		vvflag = f;
+		return(0);
+	case '{':
+		if ( no_pemflag>=MAX_FLAG ) {
+			ermess("too many flags, ignored %s",f) ;
+		} else {
+			pemflag[no_pemflag++] = p;
+		}
+		return(0);
+	case 'R':
+		pc_path= p ;
+		return 0 ;
+	case 'r' :
+		err_path= p ;
+		return 0 ;
+	default:
+		return(f);
+	}
+	if (*p)
+		fatal("bad flag %s",f);
+	return(0);
+}
+
+initsizes(f) FILE *f; {
+	register c, i;
+	register char *p;
+
+	p = vvflag + 2;
+	while (c = *p++) {
+		i = atoi(p);
+		while (*p >= '0' && *p <= '9')
+			p++;
+		switch (c) {
+		case 'p': sz_addr = i; continue;
+		case 'f': sz_real = i; continue;
+		case 'h': sz_head = i; continue;
+		case 'b': sz_buff = i; continue;
+		case 'm': sz_mset = i; continue;
+		case 'j': sz_iset = i; continue;
+		case 'w':
+		case 'i': if (i == 2) continue; break;
+		case 'l': if (i == 4) continue; break;
+		}
+		fatal("bad V-flag %s",vvflag);
+	}
+	if (sz_head == 0)
+		sz_head = 6*sz_word + 2*sz_addr;
+	for (i = 0; i <= sz_last; i++)
+		fprintf(f, "%d\n",sizes[i]);
+}
+
+/* ------------------ calling sequences -------------------- */
+
+pem(p,q) char *p,*q; {
+	register char **v,*d;
+	int i;
+	FILE *erfil;
+
+	v = initvector(pc_path);
+	d = tempfile('d');
+	if ((erfil = fopen(d,"w")) == NULL)
+		syserr(d);
+	initsizes(erfil);
+	fprintf(erfil,"%s\n",basename(source));
+	for ( i=0 ; i<no_pemflag ; i++ ) fprintf(erfil,"%s\n",pemflag[i]);
+	fclose(erfil);
+	*v++ = q;
+	*v++ = d;
+	call(v,p,(char *)0);
+	if (toterr == 0)
+		if (list(p,d) < 0)
+			toterr++;
+	donewith(d);
+}
+
+/* ------------------- miscellaneous routines --------------- */
+
+char *basename(p) char *p; {
+	register char *q;
+
+	q = p;
+	while (*q)
+		if (*q++ == '/')
+			p = q;
+	return(p);
+}
+
+char *tempfile(suf) {
+	register char *p,*q;
+	register i;
+
+	p = charp; q = tmp_dir;
+	while (*p = *q++)
+		p++;
+	*p++ = '/';
+	q = unique;
+	while (*p = *q++)
+		p++;
+	i = fileargs;
+	do
+		*p++ = i % 10 + '0';
+	while (i /= 10);
+	*p++ = '.'; *p++ = suf; *p++ = '\0';
+	q = charp; charp = p;
+	return(q);
+}
+
+call(v,in,out) char **v,*in,*out; {
+	register pid;
+	int     status;
+
+	while ((parent = fork()) < 0)
+		sleep(1);
+	if (parent == 0) {
+		if (in) {
+			close(0);
+			if (open(in,0) != 0)
+				syserr(in);
+		}
+		if (out) {
+			close(1);
+			if (creat(out,0666) != 1)
+				syserr(out);
+		}
+		*v = 0;
+		execv(callvector[0],callvector+1);
+		syserr(callvector[0]);
+	}
+	while ((pid = wait(&status)) != parent) {
+		if (pid == -1)
+			fatal("process %d disappeared",parent);
+		fatal("unknown child %d died",pid);
+	}
+	if ((status & 0177) > 3) {
+/*
+		if ((status & 0200) && tflag==0)
+			unlink("core");
+*/
+		fatal("signal %d in %s. Ask an expert for help",
+				status&0177,callvector[0]);
+	}
+	if (status & 0177400)
+		toterr++;
+}
+
+char **initvector(path) char *path; {
+	register char *p,**v;
+
+	v = callvector;
+	p = path;
+	*v++ = p;
+	*v++ = basename(p);
+	return(v);
+}
+
+finish() {
+	register char *p,*q;
+	register fd;
+	struct direct dir;
+
+	signal(SIGINT,SIG_IGN);
+	if (parent != 0) {
+		chdir(tmp_dir);
+		fd = open(".",0);
+		while (read(fd,(char *) &dir,sizeof dir) == sizeof dir) {
+			if (dir.d_ino == 0)
+				continue;
+			p = unique;
+			q = dir.d_name;
+			while (*p++ == *q++)
+				if (*p == '\0') {
+					unlink(dir.d_name);
+					break;
+				}
+		}
+		close(fd);
+	}
+	exit(toterr ? -1 : 0);
+}
+
+
+donewith(p) char *p; {
+
+	if (p >= charbuf && p < &charbuf[CHARSIZE])
+		unlink(p);
+}
+
+init() {
+	register char *p,*s ;
+	register i,fd;
+
+	if ((fd = open(tmp_dir,0)) < 0)
+		tmp_dir = ".";
+	close(fd);
+	p= def_pc_path ;
+	s= EM_DIR ; while ( *p++ = *s++ ) ; *p='/' ;
+	s= PEM_PATH ; while ( *p++ = *s++ ) ;
+	p= def_err_path ;
+	s= EM_DIR ; while ( *p++ = *s++ ) ; *p='/' ;
+	s= ERR_PATH ; while ( *p++ = *s++ ) ;
+	p = unique+2;
+	parent = i = getpid();
+	do
+		*p++ = i % 10 + '0';
+	while (i /= 10);
+	*p++ = '.'; *p = '\0';
+}
+
+/* ------------------- pascal listing ----------------------- */
+
+#define MAXERNO         300
+#define MAXERRLIST      10
+#define IDMAX           8
+
+struct errec {
+	int     erno;
+	char    mess[IDMAX+1];
+	int     mesi;
+	int     chno;
+	int     lino;
+};
+
+struct  errec   curr;
+struct  errec   next;
+
+int     *index          = 0;
+int     maxerno;
+
+int     errerr;
+int     errfat;
+
+int     listlino;
+int     listorig;
+int     listrela;
+char    *listfnam;
+
+FILE    *inpfil;
+FILE    *mesfil;
+FILE    *errfil;
+
+int     errorline();
+int     geterrec();
+int     nexterror();
+
+int list(p,q) char *p,*q; {
+
+	if ((errfil = fopen(q,"r")) == NULL)
+		syserr(q);
+	if (geterrec() == 0)
+		if (eeflag==0) {
+			fclose(errfil);
+			return(0);
+		}
+	if (index == 0) {
+		index = (int *) sbrk(MAXERNO * sizeof index[0]);
+		fillindex();
+	}
+	if ((inpfil = fopen(p,"r")) == NULL)
+		syserr(p);
+	errerr = 0;
+	errfat = 0;
+	listlino = 0;
+	listorig = 0;
+	listrela = 0;
+	listfnam = source;
+	if (eeflag)
+		listfull();
+	else if (eflag)
+		listpartial();
+	else
+		listshort();
+	fclose(errfil);
+	fclose(inpfil);
+	fflush(stdout);
+	return(errfat ? -1 : 1);
+}
+
+listshort() {
+
+	while (nexterror()) {
+		while (listlino < curr.lino)
+			nextline(0);
+		printf("%s, line %d: ",listfnam,listrela);
+		string(&curr);
+	}
+}
+
+listfull() {
+
+	if (nexterror())
+		do {
+			do {
+				nextline(1);
+			} while (listlino < curr.lino);
+		} while (errorline());
+	while (nextline(1))
+		;
+}
+
+listpartial() {
+
+	if (nexterror())
+		do {
+			do {
+				nextline(listlino >= curr.lino-2);
+			} while (listlino < curr.lino);
+		} while (errorline());
+}
+
+int nextline(printing) {
+	register ch;
+
+	listlino++;
+	ch = getc(inpfil);
+	if (ch == '#') {
+		if (lineline(printing) == 0)
+			fatal("bad line directive");
+		return(1);
+	}
+	listrela++;
+	if (listfnam == source)
+		listorig++;
+	if (ch != EOF) {
+		if (printing)
+			printf("%5d\t",listorig);
+		do {
+			if (printing)
+				putchar(ch);
+			if (ch == '\n')
+				return(1);
+		} while ((ch = getc(inpfil)) != EOF);
+	}
+	return(0);
+}
+
+lineline(printing) {
+	register ch;
+	register char *p,*q;
+	static char line[100];
+
+	p = line;
+	while ((ch = getc(inpfil)) != '\n') {
+		if (ch == EOF || p == &line[100-1])
+			return(0);
+		*p++ = ch;
+	}
+	*p = '\0'; p = line;
+	if (printing)
+		printf("\t#%s\n",p);
+	if ((listrela = atoi(p)-1) < 0)
+		return(0);
+	while ((ch = *p++) != '"')
+		if (ch == '\0')
+			return(0);
+	q = p;
+	while (ch = *p++) {
+		if (ch == '"') {
+			*--p = '\0';
+			if ( source ) {
+				listfnam = strcmp(q,source)==0 ? source : q;
+				return(1);
+			}
+			source=q ; listfnam=q ;
+			return 1 ;
+		}
+		if (ch == '/')
+			q = p;
+	}
+	return(0);
+}
+
+int errorline() {
+	register c;
+	register struct errec *p,*q;
+	struct  errec   lerr[MAXERRLIST];
+	int     goon;
+
+	printf("*** ***");
+	p = lerr;
+	c = 0;
+	do {
+		if (c < curr.chno) {
+			printf("%*c",curr.chno-c,'^');
+			c = curr.chno;
+		}
+		if (p < &lerr[MAXERRLIST])
+			*p++ = curr;
+		goon = nexterror();
+	} while (goon && curr.lino==listlino);
+	putchar('\n');
+	for (q = lerr; q < p; q++)
+		string(q);
+	putchar('\n');
+	return(goon);
+}
+
+int geterrec() {
+	register ch;
+	register char *p;
+
+	ch = getc(errfil);
+	next.erno = 0;
+	next.mesi = -1;
+	next.mess[0] = '\0';
+	if (ch == EOF)
+		return(0);
+	if (ch >= '0' && ch <= '9') {
+		ch = getnum(ch,&next.mesi);
+	} else if (ch == '\'') {
+		p = next.mess;
+		while ((ch = getc(errfil)) != ' ' && ch != EOF)
+			if (p < &next.mess[IDMAX])
+				*p++ = ch;
+		*p = '\0';
+	}
+	ch = getnum(ch, &next.erno);
+	ch = getnum(ch, &next.lino);
+	ch = getnum(ch, &next.chno);
+	if (ch != '\n')
+		fatal("bad error line");
+	return(1);
+}
+
+int getnum(ch, ip) register ch; register *ip; {
+	register neg;
+
+	*ip = 0;
+	while (ch == ' ')
+		ch = getc(errfil);
+	if (neg = ch=='-')
+		ch = getc(errfil);
+	while (ch >= '0' && ch <= '9') {
+		*ip = *ip * 10 - '0' + ch;
+		ch = getc(errfil);
+	}
+	if (neg)
+		*ip = -(*ip);
+	return(ch);
+}
+
+int nexterror() {
+
+	do {    /* skip warnings if wflag */
+		curr = next;
+		if (curr.erno == 0)
+			return(0);
+		for (;;) {
+			if (geterrec() == 0)
+				break;
+			if (next.lino != curr.lino || next.chno != curr.chno)
+				break;
+			if (curr.erno < 0 && next.erno > 0)
+				/* promote warnings if they cause fatals */
+				curr.erno = -curr.erno;
+			if (next.mess[0] != '\0' || next.mesi != -1)
+				/* give all parameterized errors */
+				break;
+			if (curr.mess[0] != '\0' || curr.mesi != -1)
+				/* and at least a non-parameterized one */
+				break;
+		}
+	} while (curr.erno < 0 && wflag != 0);
+	return(1);
+}
+
+fillindex() {
+	register *ip,n,c;
+
+	if ((mesfil = fopen(err_path,"r")) == NULL)
+		syserr(err_path);
+	ip = index;
+	*ip++ = 0;
+	n = 0;
+	while ((c = getc(mesfil)) != EOF) {
+		n++;
+		if (c == '\n') {
+			*ip++ = n;
+			if (ip > &index[MAXERNO])
+				fatal("too many errors on %s",err_path);
+		}
+	}
+	maxerno = ip - index;
+}
+
+string(ep) register struct errec *ep; {
+	register i,n;
+
+	errerr++;
+	if ((i = ep->erno) < 0) {
+		i = -i;
+		printf("Warning: ");
+	} else
+		errfat++;
+	if (i == 0 || i >= maxerno)
+		fatal("bad error number %d",i);
+	n = index[i] - index[i-1];
+	fseek(mesfil,(long)index[i-1],0);
+	while (--n >= 0) {
+		i = getc(mesfil);
+		if (i == '%' && --n>=0) {
+			i = getc(mesfil);
+			if (i == 'i')
+				printf("%d", ep->mesi);
+			else if (i == 's')
+				printf("%s", ep->mess);
+			else
+				putchar(i);
+		} else
+			putchar(i);
+	}
+}
+
+/* ------------------- error routines -------------------------- */
+
+/* VARARGS1 */
+void ermess(s,a1,a2,a3,a4) char *s; {
+
+	fprintf(stderr,"%s: ",progname);
+	fprintf(stderr,s,a1,a2,a3,a4);
+	fprintf(stderr,"\n");
+}
+
+syserr(s) char *s; {
+	fatal("%s: %s",s,sys_errlist[errno]);
+}
+
+/* VARARGS1 */
+void fatal(s,a1,a2,a3,a4) char *s; {
+
+	ermess(s,a1,a2,a3,a4);
+	toterr++;
+	finish();
+}

util/ack/rmach.c

@@ -1,303 +0,0 @@
-/*
- * (c) copyright 1983 by the Vrije Universiteit, Amsterdam, The Netherlands.
- *
- *          This product is part of the Amsterdam Compiler Kit.
- *
- * Permission to use, sell, duplicate or disclose this software must be
- * obtained in writing. Requests for such permissions may be sent to
- *
- *      Dr. Andrew S. Tanenbaum
- *      Wiskundig Seminarium
- *      Vrije Universiteit
- *      Postbox 7161
- *      1007 MC Amsterdam
- *      The Netherlands
- *
- */
-
-#include "ack.h"
-#include "../../h/em_path.h"
-#include "list.h"
-#include "trans.h"
-#include "grows.h"
-#include "dmach.h"
-#include "data.h"
-#include <stdio.h>
-
-/************************************************************************/
-/*                                                                      */
-/*           Read machine definitions and transformations               */
-/*                                                                      */
-/************************************************************************/
-
-#define COMMENT '#'
-
-#define VAR     "var"
-#define PASS    "name"
-#define IN      "from"
-#define OUT     "to"
-#define PROG    "program"
-#define MAPF    "mapflag"
-#define ARGS    "args"
-#define PROP    "prop"
-#define RUNT    "rts"
-#define NEEDT	"need"
-#define END     "end"
-
-extern growstring scanb();
-extern growstring scanvars();
-
-int getline() ;
-int getinchar() ;
-static char *ty_name ;
-static char *bol ;
-
-
-static char *inname ;
-
-setlist(name) char *name ; {
-	/* Name is sought in the internal tables,
-	   if not present, the a file of that name is sought
-	   in first the current and then the EM Lib directory
-	*/
-
-	inname=name ;
-	open_in(name) ;
-	while ( getline() ) {
-		if ( strcmp(VAR,ty_name)==0 ) {
-			doassign(bol,(char *)0,0) ;
-		} else
-		if ( strcmp(PASS,ty_name)==0 ) {
-			intrf() ;
-		} else
-			error("unknown keyword %s",ty_name) ;
-	}
-	close_in();
-#ifdef DEBUG
-	if ( debug>=3 ) vprint("End %s\n",name) ;
-#endif
-}
-
-intrf() {
-	register trf *new ;
-	register char *ptr ;
-	growstring bline, vline ;
-	int twice ;
-
-	new= (trf *)getcore(sizeof *new) ;
-	new->t_name= keeps(bol) ;
-	for (;;) {
-		if ( !getline() ) {
-			fuerror("unexpected EOF on %s",inname) ;
-		}
-		twice= NO ;
-		if ( strcmp(ty_name,IN)==0 ) {
-			if ( new->t_in ) twice=YES ;
-			new->t_in= keeps(bol);
-		} else
-		if ( strcmp(ty_name,OUT)==0 ) {
-			if ( new->t_out ) twice=YES ;
-			new->t_out= keeps(bol);
-		} else
-		if ( strcmp(ty_name,PROG)==0 ) {
-			if ( new->t_prog ) twice=YES ;
-			bline= scanb(bol);                /* Scan for \ */
-			vline= scanvars(gr_start(bline)); /* Scan for {} */
-			gr_throw(&bline);
-			new->t_prog= gr_final(&vline);
-			clr_noscan(new->t_prog);
-		} else
-		if ( strcmp(ty_name,MAPF)==0 ) {
-			/* First read the mapflags line
-				and scan for backslashes */
-			bline= scanb(bol) ;
-			l_add(&new->t_mapf,gr_final(&bline)) ;
-		} else
-		if ( strcmp(ty_name,ARGS)==0 ) {
-			if ( new->t_argd ) twice=YES ;
-			bline= scanb(bol) ;
-			new->t_argd= keeps(gr_start(bline)) ;
-			gr_throw(&bline) ;
-		} else
-		if ( strcmp(ty_name,PROP)==0 ) {
-			for ( ptr=bol ; *ptr ; ptr++ ) {
-				switch( *ptr ) {
-				case C_IN: new->t_stdin= YES ; break ;
-				case C_OUT: new->t_stdout= YES ; break ;
-				case 'P': new->t_isprep= YES ; break ;
-				case 'p': new->t_prep= YES ; break ;
-				case 'm': new->t_prep= MAYBE ; break ;
-				case 'O': new->t_optim= YES ; break ;
-				case 'C': new->t_combine= YES ; break ;
-				default :
-				  error("Unkown option %c in %s for %s",
-					*ptr,new->t_name,inname) ;
-				  break ;
-				}
-			}
-		} else
-		if ( strcmp(ty_name,RUNT)==0 ) {
-			if ( new->t_rts ) twice=YES ;
-			new->t_rts= keeps(bol) ;
-		} else
-		if ( strcmp(ty_name,NEEDT)==0 ) {
-			if ( new->t_needed ) twice=YES ;
-			new->t_needed= keeps(bol) ;
-		} else
-		if ( strcmp(ty_name,END)==0 ) {
-			break ;
-		} else {
-			fuerror("illegal keyword %s %s",ty_name,bol);
-		}
-		if ( twice ) {
-			werror("%s: specified twice for %s",
-				ty_name, new->t_name) ;
-		}
-	}
-	if ( ! ( new->t_name && new->t_out && new->t_prog ) ) {
-		fuerror("insufficient specification for %s in %s",
-			new->t_name,inname) ;
-	}
-	if ( ! new->t_argd ) new->t_argd="" ;
-#ifdef DEBUG
-	if ( debug>=3 ) {
-		register list_elem *elem ;
-		vprint("%s: from %s to %s '%s'\n",
-			new->t_name,new->t_in,new->t_out,new->t_prog) ;
-		vprint("\targs: ") ; prns(new->t_argd) ;
-		scanlist( l_first(new->t_mapf), elem ) {
-			vprint("\t%s\n",l_content(*elem)) ;
-		}
-		if ( new->t_rts ) vprint("\trts: %s\n",new->t_rts) ;
-		if ( new->t_needed ) vprint("\tneeded: %s\n",new->t_needed) ;
-	}
-#endif
-	l_add(&tr_list,(char *)new) ;
-}
-
-/************************** IO from core or file *******************/
-
-static  int             incore ;
-static  growstring      rline ;
-static  FILE            *infile ;
-static  char            *inptr ;
-
-open_in(name) register char *name ; {
-	register dmach *cmac ;
-
-	gr_init(&rline) ;
-	for ( cmac= massoc ; cmac->ma_index!= -1 ; cmac++ ) {
-		if ( strcmp(name,cmac->ma_name)==0 ) {
-			incore=YES ;
-			inptr= &intable[cmac->ma_index] ;
-			return ;
-		}
-	}
-	/* Not in core */
-	incore= NO ;
-#ifdef NEW
-	gr_cat(&rline,EM_DIR) ;
-	gr_cat(&rline,"/lib/n_ack/") ;
-#else
-	gr_cat(&rline,ACK_DIR); gr_cat(&rline,"/") ;
-#endif
-	gr_cat(&rline,name) ;
-	infile= fopen(gr_start(rline),"r") ;
-#ifdef NEW
-	if ( !infile ) {
-		/* Try to read EM_DIR/lib/MACH/plan */
-		gr_throw(&rline) ;
-		gr_cat(&rline,EM_DIR) ;
-		gr_cat(&rline,"/lib/") ; gr_cat(&rline,name) ;
-		gr_cat(&rline,"/plan") ;
-		infile= fopen(gr_start(rline),"r") ;
-	}
-#endif
-	if ( !infile ) {
-		infile= fopen(name,"r") ;
-	}
-	if ( infile==NULL ) {
-		fuerror("Cannot find description for %s",name) ;
-	}
-}
-
-close_in() {
-	if ( !incore ) fclose(infile) ;
-	gr_throw(&rline) ;
-}
-
-char *readline() {
-	/* Get a line from the input,
-	   return 0 if at end,
-	   The line is stored in a volatile buffer,
-	   a pointer to the line is returned.
-	*/
-	register int nchar ;
-	enum { BOL, ESCAPE, SKIPPING, MOL } state = BOL ;
-
-	gr_throw(&rline) ;
-	for (;;) {
-		nchar= getinchar() ;
-		if ( nchar==EOF ) {
-			if ( state!=BOL ) {
-				werror("incomplete line in %s", inname) ;
-			}
-			return 0 ;
-		}
-		if ( state==SKIPPING ) {
-			if ( nchar=='\n' ) {
-				state= MOL ;
-			} else {
-				continue ;
-			}
-		}
-		if ( state==ESCAPE ) {
-			switch( nchar ) {
-			case '\n' :
-				break ;
-			default :
-				gr_add(&rline,BSLASH) ;
-			case COMMENT :
-			case BSLASH :
-				gr_add(&rline,nchar) ;
-				break ;
-			}
-			state= MOL ;
-			continue ;
-		}
-		switch ( nchar ) {
-		case '\n' :     gr_add(&rline,0) ;
-				return gr_start(rline) ;
-		case COMMENT :  state= SKIPPING ;
-				break ;
-		case BSLASH :   state= ESCAPE ;
-				break ;
-		default :       gr_add(&rline,nchar) ;
-				state= MOL ;
-		}
-	}
-}
-
-int getinchar() {
-	if ( incore ) {
-		if ( *inptr==0 ) return EOF ;
-		return *inptr++ ;
-	}
-	return getc(infile) ;
-}
-
-int getline() {
-	register char *c_ptr ;
-
-	do {
-		if ( (c_ptr=readline())==(char *)0 ) return 0 ;
-		ty_name= skipblank(c_ptr) ;
-	} while ( *ty_name==0 ) ;
-	c_ptr= firstblank(ty_name) ;
-	if ( *c_ptr ) {
-		*c_ptr++ =0 ;
-		c_ptr= skipblank(c_ptr) ;
-	}
-	bol= c_ptr ;
-	return 1 ;
-}