NetBSD/gnu/usr.bin/awk/bi_vars.c

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1993-03-21 12:45:37 +03:00
/********************************************
bi_vars.c
copyright 1991, Michael D. Brennan
This is a source file for mawk, an implementation of
the AWK programming language.
Mawk is distributed without warranty under the terms of
the GNU General Public License, version 2, 1991.
********************************************/
/* $Log: bi_vars.c,v $
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/* Revision 1.2 1993/07/02 23:57:04 jtc
/* Updated to mawk 1.1.4
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/*
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* Revision 5.2 1992/07/10 16:17:10 brennan
* MsDOS: remove NO_BINMODE macro
*
* Revision 5.1 1991/12/05 07:55:38 brennan
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* 1.1 pre-release
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*
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*/
/* bi_vars.c */
#include "mawk.h"
#include "symtype.h"
#include "bi_vars.h"
#include "field.h"
#include "init.h"
#include "memory.h"
/* the builtin variables */
CELL bi_vars[NUM_BI_VAR] ;
/* the order here must match the order in bi_vars.h */
static char *bi_var_names[NUM_BI_VAR] = {
"NR" ,
"FNR" ,
"ARGC" ,
"FILENAME" ,
"OFS" ,
"ORS" ,
"RLENGTH" ,
"RSTART" ,
"SUBSEP"
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#if MSDOS
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, "BINMODE"
#endif
} ;
/* insert the builtin vars in the hash table */
void bi_vars_init()
{ register int i ;
register SYMTAB *s ;
for ( i = 0 ; i < NUM_BI_VAR ; i++ )
{ s = insert( bi_var_names[i] ) ;
s->type = i <= 1 ? ST_NR : ST_VAR ;
s->stval.cp = bi_vars + i ;
/* bi_vars[i].type = 0 which is C_NOINIT */
}
s = insert("ENVIRON") ;
s->type = ST_ENV ;
/* set defaults */
FILENAME->type = C_STRING ;
FILENAME->ptr = (PTR) new_STRING( "" ) ;
OFS->type = C_STRING ;
OFS->ptr = (PTR) new_STRING( " " ) ;
ORS->type = C_STRING ;
ORS->ptr = (PTR) new_STRING( "\n" ) ;
SUBSEP->type = C_STRING ;
SUBSEP->ptr = (PTR) new_STRING( "\034" ) ;
NR->type = FNR->type = C_DOUBLE ;
/* dval is already 0.0 */
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#if MSDOS
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BINMODE->type = C_DOUBLE ;
#endif
}