repl.h

/********************************************
repl.h
copyright 1991,1993,2014-2016 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 3, 2007.

If you import elements of this code into another product,
you agree to not name that product mawk.
********************************************/

/* repl.h */
/* replacement */

#ifndef REPL_H
#define REPL_H

#include "types.h"

void *            re_compile( const STRING * );
const STRING * re_uncompile( void * );

typedef struct {
    unsigned  cnt;     /* number of pieces */
    unsigned  amp_cnt; /* number of & */
    STRING ** pieces;
    size_t    piece_len;
} Replv_Data;

void           replacement_scan( const STRING *, CELL * );
const STRING * repl_unscan( CELL * );

/* only C_REPL needs anything freed */
#define repl_destroy( cp )               \
    do {                                 \
        if ( ( cp )->type == C_REPL ) {  \
            free_STRING( string( cp ) ); \
        }                                \
    } while ( 0 )

#endif