usr/src/cmd/sgs/m4/common/m4ext.c

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21 /*      Copyright (c) 1988 AT&T */
  22 /*        All Rights Reserved   */
  23
  24
  25 /*
  26  * Copyright (c) 1989, 2010, Oracle and/or its affiliates. All rights reserved.
  27  */
  28
  29 #include        "m4.h"
  30
  31
  32 /* storage params */
  33 int     hshsize         = DEF_HSHSIZE;  /* hash table size (prime) */
  34 int     bufsize         = DEF_BUFSIZE;  /* pushback & arg text buffers */
  35 int     stksize         = DEF_STKSIZE;  /* call stack */
  36 int     toksize         = DEF_TOKSIZE;  /* biggest word ([a-z_][a-z0-9_]*) */
  37
  38
  39 /* pushback buffer */
  40 wchar_t *ibuf;                          /* buffer */
  41 wchar_t *ibuflm;                        /* highest buffer addr */
  42 wchar_t *ip;                            /* current position */
  43 wchar_t *ipflr;                         /* buffer floor */
  44 wchar_t         *ipstk[10];                     /* stack for "ipflr"s */
  45
  46
  47 /* arg collection buffer */
  48 wchar_t *obuf;                          /* buffer */
  49 wchar_t *obuflm;                        /* high address */
  50 wchar_t *op;                            /* current position */
  51
  52
  53 /* call stack */
  54 struct call     *callst;                /* stack */
  55 struct call     *Cp     = NULL;         /* position */
  56
  57
  58 /* token storage */
  59 wchar_t *token;                         /* buffer */
  60 wchar_t *toklm;                         /* high addr */
  61
  62
  63 /* file name and current line storage for line sync and diagnostics */
  64 char    *fname[11];                     /* file name ptr stack */
  65 int     fline[10];                      /* current line nbr stack */
  66
  67
  68 /* input file stuff for "include"s */
  69 FILE    *ifile[10];                     /* stack */
  70 int     ifx;                            /* stack index */
  71 ibuf_t  ibuffer[11];                    /* input buffer */
  72
  73 /* stuff for output diversions */
  74 FILE    *cf;                            /* current output file */
  75 FILE    *ofile[11];                     /* output file stack */
  76 int     ofx;                            /* stack index */
  77
  78
  79 /* comment markers */
  80 wchar_t lcom[MAXSYM+1]  = L"#";
  81 wchar_t rcom[MAXSYM+1]  = L"\n";
  82
  83
  84 /* quote markers */
  85 wchar_t lquote[MAXSYM+1]  = L"`";
  86 wchar_t rquote[MAXSYM+1]  = L"\'";
  87
  88
  89 /* argument ptr stack */
  90 wchar_t **argstk;
  91 wchar_t *astklm;                        /* high address */
  92 wchar_t **Ap;                           /* current position */
  93
  94
  95 /* symbol table */
  96 struct nlist    **hshtab;               /* hash table */
  97 unsigned int    hshval;                 /* last hash val */
  98
  99
 100 /* misc */
 101 char    *procnam;                       /* argv[0] */
 102 char    *tempfile;                      /* used for diversion files */
 103 struct  Wrap *wrapstart = NULL; /* first entry in of list of "m4wrap" strings */
 104 wchar_t nullstr[]       = {0};
 105 int     nflag   = 1;                    /* name flag, used for line sync code */
 106 int     sflag;                          /* line sync flag */
 107 int     sysrval;                        /* return val from syscmd */
 108 int     trace;                          /* global trace flag */
 109 int     exitstat = OK;                  /* global exit status */
 110 int     wide;                           /* multi-byte locale */