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%{
#ifndef lint
static char *rcs = "$Header: qmsovl.y,v 1.1 88/01/15 12:19:13 simpson Rel $";
#endif
/*
$Log: qmsovl.y,v $
* Revision 1.1 88/01/15 12:19:13 simpson
* initial release
*
* Revision 0.1 87/12/11 17:12:05 simpson
* beta test
*
*/
#include <stdio.h>
#include <setjmp.h>
#include <local/standard.h>
#include "qms.h"
extern FILE *_Ifp, *_Ofp;
extern Boolean _FirstChar;
static jmp_buf Env;
char *malloc();
static struct qmsovl *OvlList, *P;
%}
%token OVL INTEGER SPACE AUTOPAGE NONE ENDLINE
%%
ovllines : ovllines ovlline | ovlline ;
ovlline : OVL overlay ENDLINE ;
overlay :
NONE
{
OvlList = NULL;
}
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INTEGER SPACE
{
P = (struct qmsovl *)malloc((unsigned)sizeof(struct qmsovl));
P->next = OvlList, OvlList = P;
P->ovltype = regular;
P->ovlnumber = $1;
P->ovlsize = $2;
}
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AUTOPAGE
{
P = (struct qmsovl *)malloc((unsigned)sizeof(struct qmsovl));
P->next = OvlList, OvlList = P;
P->ovltype = automatic;
}
;
%%
#include "qmsovllex.c"
struct qmsovl *qmsovl()
{
_FirstChar = TRUE;
OvlList = NULL;
fputs(QUICON, _Ofp);
fprintf(_Ofp, "%s00000", SYNTAX);
fprintf(_Ofp, "%sOVL%s", INFO, ENDCMD);
fputs(QUICOFF, _Ofp);
(void)fflush(_Ofp);
if (setjmp(Env)) {
while (timedgetc(_Ifp) != EOF) /* Discard remaining input */
;
return NULL;
}
if (yyparse() != 0)
return NULL;
yysptr = yysbuf; /* Resets lex lookahead buffer */
return OvlList;
}
static yyerror(s)
char *s;
{
longjmp(Env, TRUE);
}
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