xref: /illumos-gate/usr/src/cmd/sgs/m4/common/m4ext.c (revision 6a634c9dca3093f3922e4b7ab826d7bdf17bf78e)
17c478bd9Sstevel@tonic-gate /*
27c478bd9Sstevel@tonic-gate  * CDDL HEADER START
37c478bd9Sstevel@tonic-gate  *
47c478bd9Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*4c56998aSRich Burridge  * Common Development and Distribution License (the "License").
6*4c56998aSRich Burridge  * You may not use this file except in compliance with the License.
77c478bd9Sstevel@tonic-gate  *
87c478bd9Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
97c478bd9Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
107c478bd9Sstevel@tonic-gate  * See the License for the specific language governing permissions
117c478bd9Sstevel@tonic-gate  * and limitations under the License.
127c478bd9Sstevel@tonic-gate  *
137c478bd9Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
147c478bd9Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
157c478bd9Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
167c478bd9Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
177c478bd9Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
187c478bd9Sstevel@tonic-gate  *
197c478bd9Sstevel@tonic-gate  * CDDL HEADER END
207c478bd9Sstevel@tonic-gate  */
217c478bd9Sstevel@tonic-gate /*	Copyright (c) 1988 AT&T	*/
227c478bd9Sstevel@tonic-gate /*	  All Rights Reserved  	*/
237c478bd9Sstevel@tonic-gate 
247c478bd9Sstevel@tonic-gate 
257c478bd9Sstevel@tonic-gate /*
26*4c56998aSRich Burridge  * Copyright (c) 1989, 2010, Oracle and/or its affiliates. All rights reserved.
277c478bd9Sstevel@tonic-gate  */
287c478bd9Sstevel@tonic-gate 
297c478bd9Sstevel@tonic-gate #include	"m4.h"
307c478bd9Sstevel@tonic-gate 
317c478bd9Sstevel@tonic-gate 
327c478bd9Sstevel@tonic-gate /* storage params */
33*4c56998aSRich Burridge int	hshsize 	= DEF_HSHSIZE;	/* hash table size (prime) */
34*4c56998aSRich Burridge int	bufsize 	= DEF_BUFSIZE;	/* pushback & arg text buffers */
35*4c56998aSRich Burridge int	stksize 	= DEF_STKSIZE;	/* call stack */
36*4c56998aSRich Burridge int	toksize 	= DEF_TOKSIZE;	/* biggest word ([a-z_][a-z0-9_]*) */
377c478bd9Sstevel@tonic-gate 
387c478bd9Sstevel@tonic-gate 
397c478bd9Sstevel@tonic-gate /* pushback buffer */
407c478bd9Sstevel@tonic-gate wchar_t	*ibuf;				/* buffer */
417c478bd9Sstevel@tonic-gate wchar_t	*ibuflm;			/* highest buffer addr */
427c478bd9Sstevel@tonic-gate wchar_t	*ip;				/* current position */
437c478bd9Sstevel@tonic-gate wchar_t	*ipflr;				/* buffer floor */
447c478bd9Sstevel@tonic-gate wchar_t 	*ipstk[10];			/* stack for "ipflr"s */
457c478bd9Sstevel@tonic-gate 
467c478bd9Sstevel@tonic-gate 
477c478bd9Sstevel@tonic-gate /* arg collection buffer */
487c478bd9Sstevel@tonic-gate wchar_t	*obuf;				/* buffer */
497c478bd9Sstevel@tonic-gate wchar_t	*obuflm;			/* high address */
507c478bd9Sstevel@tonic-gate wchar_t	*op;				/* current position */
517c478bd9Sstevel@tonic-gate 
527c478bd9Sstevel@tonic-gate 
537c478bd9Sstevel@tonic-gate /* call stack */
547c478bd9Sstevel@tonic-gate struct call	*callst;		/* stack */
557c478bd9Sstevel@tonic-gate struct call	*Cp 	= NULL;		/* position */
567c478bd9Sstevel@tonic-gate 
577c478bd9Sstevel@tonic-gate 
587c478bd9Sstevel@tonic-gate /* token storage */
597c478bd9Sstevel@tonic-gate wchar_t	*token;				/* buffer */
607c478bd9Sstevel@tonic-gate wchar_t	*toklm;				/* high addr */
617c478bd9Sstevel@tonic-gate 
627c478bd9Sstevel@tonic-gate 
637c478bd9Sstevel@tonic-gate /* file name and current line storage for line sync and diagnostics */
647c478bd9Sstevel@tonic-gate char	*fname[11];			/* file name ptr stack */
657c478bd9Sstevel@tonic-gate int	fline[10];			/* current line nbr stack */
667c478bd9Sstevel@tonic-gate 
677c478bd9Sstevel@tonic-gate 
687c478bd9Sstevel@tonic-gate /* input file stuff for "include"s */
697c478bd9Sstevel@tonic-gate FILE	*ifile[10] 	= {stdin};	/* stack */
707c478bd9Sstevel@tonic-gate int	ifx;				/* stack index */
717c478bd9Sstevel@tonic-gate ibuf_t	ibuffer[11];			/* input buffer */
727c478bd9Sstevel@tonic-gate 
737c478bd9Sstevel@tonic-gate /* stuff for output diversions */
747c478bd9Sstevel@tonic-gate FILE	*cf 	= stdout;		/* current output file */
757c478bd9Sstevel@tonic-gate FILE	*ofile[11] 	= {stdout};	/* output file stack */
767c478bd9Sstevel@tonic-gate int	ofx;				/* stack index */
777c478bd9Sstevel@tonic-gate 
787c478bd9Sstevel@tonic-gate 
797c478bd9Sstevel@tonic-gate /* comment markers */
807c478bd9Sstevel@tonic-gate wchar_t	lcom[MAXSYM+1] 	= L"#";
817c478bd9Sstevel@tonic-gate wchar_t	rcom[MAXSYM+1] 	= L"\n";
827c478bd9Sstevel@tonic-gate 
837c478bd9Sstevel@tonic-gate 
847c478bd9Sstevel@tonic-gate /* quote markers */
857c478bd9Sstevel@tonic-gate wchar_t	lquote[MAXSYM+1]  = L"`";
867c478bd9Sstevel@tonic-gate wchar_t	rquote[MAXSYM+1]  = L"\'";
877c478bd9Sstevel@tonic-gate 
887c478bd9Sstevel@tonic-gate 
897c478bd9Sstevel@tonic-gate /* argument ptr stack */
907c478bd9Sstevel@tonic-gate wchar_t	**argstk;
917c478bd9Sstevel@tonic-gate wchar_t	*astklm;			/* high address */
927c478bd9Sstevel@tonic-gate wchar_t	**Ap;				/* current position */
937c478bd9Sstevel@tonic-gate 
947c478bd9Sstevel@tonic-gate 
957c478bd9Sstevel@tonic-gate /* symbol table */
967c478bd9Sstevel@tonic-gate struct nlist	**hshtab;		/* hash table */
977c478bd9Sstevel@tonic-gate unsigned int	hshval;			/* last hash val */
987c478bd9Sstevel@tonic-gate 
997c478bd9Sstevel@tonic-gate 
1007c478bd9Sstevel@tonic-gate /* misc */
1017c478bd9Sstevel@tonic-gate char	*procnam;			/* argv[0] */
1027c478bd9Sstevel@tonic-gate char	*tempfile;			/* used for diversion files */
1037c478bd9Sstevel@tonic-gate struct	Wrap *wrapstart = NULL;	/* first entry in of list of "m4wrap" strings */
1047c478bd9Sstevel@tonic-gate wchar_t	nullstr[] 	= {0};
1057c478bd9Sstevel@tonic-gate int	nflag 	= 1;			/* name flag, used for line sync code */
1067c478bd9Sstevel@tonic-gate int	sflag;				/* line sync flag */
1077c478bd9Sstevel@tonic-gate int	sysrval;			/* return val from syscmd */
1087c478bd9Sstevel@tonic-gate int	trace;				/* global trace flag */
1097c478bd9Sstevel@tonic-gate int	exitstat = OK;			/* global exit status */
1107c478bd9Sstevel@tonic-gate int	wide;				/* multi-byte locale */
111