101 lines
2.4 KiB
C
101 lines
2.4 KiB
C
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/********************************************
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field.h
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copyright 1991, Michael D. Brennan
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This is a source file for mawk, an implementation of
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the AWK programming language.
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Mawk is distributed without warranty under the terms of
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the GNU General Public License, version 2, 1991.
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********************************************/
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/* $Log: field.h,v $
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/* Revision 1.2 1993/07/02 23:57:19 jtc
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/* Updated to mawk 1.1.4
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/*
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* Revision 5.2 1992/01/06 08:10:24 brennan
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* set_binmode() proto for MSDOS
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*
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* Revision 5.1 91/12/05 07:59:16 brennan
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* 1.1 pre-release
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*
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*/
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/* field.h */
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#ifndef FIELD_H
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#define FIELD_H 1
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void PROTO( set_field0, (char *, unsigned) ) ;
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void PROTO( split_field0, (void) ) ;
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int PROTO( space_split, (char *, unsigned) ) ;
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void PROTO( field_assign, (CELL*, CELL *) ) ;
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char *PROTO( is_string_split, (PTR , unsigned *) ) ;
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void PROTO( slow_cell_assign, (CELL*, CELL*)) ;
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CELL *PROTO( slow_field_ptr, (int)) ;
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int PROTO( field_addr_to_index, (CELL*)) ;
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void PROTO( set_binmode, (int)) ;
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#define NUM_PFIELDS 5
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extern CELL field[FBANK_SZ+NUM_PFIELDS] ;
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/* $0, $1 ... $(MAX_SPLIT), NF, RS, RS, CONVFMT, OFMT */
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/* more fields if needed go here */
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extern CELL *fbank[NUM_FBANK] ; /* fbank[0] == field */
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/* index to CELL * for a field */
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#define field_ptr(i) ((i)<=MAX_SPLIT?field+(i):slow_field_ptr(i))
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/* the pseudo fields, assignment has side effects */
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#define NF (field+MAX_SPLIT+1) /* must be first */
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#define RS (field+MAX_SPLIT+2)
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#define FS (field+MAX_SPLIT+3)
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#define CONVFMT (field+MAX_SPLIT+4)
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#define OFMT (field+MAX_SPLIT+5) /* must be last */
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#define LAST_PFIELD OFMT
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/* some compilers choke on (NF-field) in a case statement
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even though it's constant so ...
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*/
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#define NF_field (MAX_SPLIT+1)
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#define RS_field (MAX_SPLIT+2)
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#define FS_field (MAX_SPLIT+3)
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#define CONVFMT_field (MAX_SPLIT+4)
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#define OFMT_field (MAX_SPLIT+5)
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extern int nf ; /* shadows NF */
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/* a shadow type for RS and FS */
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#define SEP_SPACE 0
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#define SEP_CHAR 1
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#define SEP_STR 2
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#define SEP_RE 3
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#define SEP_MLR 4
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typedef struct {
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char type ;
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char c ;
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PTR ptr ; /* STRING* or RE machine* */
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} SEPARATOR ;
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extern SEPARATOR rs_shadow ;
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extern CELL fs_shadow ;
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/* types for splitting overflow */
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typedef struct spov {
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struct spov *link ;
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STRING *sval ;
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} SPLIT_OV ;
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extern SPLIT_OV *split_ov_list ;
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#endif /* FIELD_H */
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