da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin/***********************************************************************
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* This software is part of the ast package *
3e14f97f673e8a630f076077de35afdd43dc1587Roger A. Faulkner* Copyright (c) 1982-2010 AT&T Intellectual Property *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* and is licensed under the *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* Common Public License, Version 1.0 *
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin* by AT&T Intellectual Property *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* A copy of the License is available at *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* http://www.opensource.org/licenses/cpl1.0.txt *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* Information and Software Systems Research *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* AT&T Research *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* Florham Park NJ *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* David Korn <dgk@research.att.com> *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin* *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin***********************************************************************/
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#pragma prototyped
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin/*
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * break [n]
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * continue [n]
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * return [n]
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * exit [n]
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * David Korn
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * AT&T Labs
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * dgk@research.att.com
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin *
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin */
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#include "defs.h"
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#include <ast.h>
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#include <error.h>
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#include "shnodes.h"
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#include "builtins.h"
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin/*
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * return and exit
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin */
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#if 0
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin /* for the dictionary generator */
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin int b_exit(int n, register char *argv[],void *extra){}
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#endif
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chinint b_return(register int n, register char *argv[],void *extra)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin{
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin register char *arg;
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin register Shell_t *shp = ((Shbltin_t*)extra)->shp;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin struct checkpt *pp = (struct checkpt*)shp->jmplist;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin const char *options = (**argv=='r'?sh_optreturn:sh_optexit);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin while((n = optget(argv,options))) switch(n)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin {
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin case ':':
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if(!strmatch(argv[opt_info.index],"[+-]+([0-9])"))
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin errormsg(SH_DICT,2, "%s", opt_info.arg);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin goto done;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin case '?':
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin errormsg(SH_DICT,ERROR_usage(0), "%s", opt_info.arg);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin return(2);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin }
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chindone:
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if(error_info.errors)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin errormsg(SH_DICT,ERROR_usage(2),"%s",optusage((char*)0));
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin pp->mode = (**argv=='e'?SH_JMPEXIT:SH_JMPFUN);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin argv += opt_info.index;
34f9b3eef6fdadbda0a846aa4d68691ac40eace5Roland Mainz n = (((arg= *argv)?(int)strtol(arg, (char**)0, 10)&SH_EXITMASK:shp->oldexit));
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin /* return outside of function, dotscript and profile is exit */
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if(shp->fn_depth==0 && shp->dot_depth==0 && !sh_isstate(SH_PROFILE))
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin pp->mode = SH_JMPEXIT;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin sh_exit(shp->savexit=n);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin return(1);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin}
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin/*
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin * break and continue
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin */
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#if 0
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin /* for the dictionary generator */
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin int b_continue(int n, register char *argv[],void *extra){}
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin#endif
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chinint b_break(register int n, register char *argv[],void *extra)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin{
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin char *arg;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin register int cont= **argv=='c';
7c2fbfb345896881c631598ee3852ce9ce33fb07April Chin register Shell_t *shp = ((Shbltin_t*)extra)->shp;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin while((n = optget(argv,cont?sh_optcont:sh_optbreak))) switch(n)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin {
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin case ':':
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin errormsg(SH_DICT,2, "%s", opt_info.arg);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin break;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin case '?':
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin errormsg(SH_DICT,ERROR_usage(0), "%s", opt_info.arg);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin return(2);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin }
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if(error_info.errors)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin errormsg(SH_DICT,ERROR_usage(2),"%s",optusage((char*)0));
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin argv += opt_info.index;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin n=1;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if(arg= *argv)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin {
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin n = strtol(arg,&arg,10);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if(n<=0 || *arg)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin errormsg(SH_DICT,ERROR_exit(1),e_nolabels,*argv);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin }
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if(shp->st.loopcnt)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin {
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin shp->st.execbrk = shp->st.breakcnt = n;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if(shp->st.breakcnt > shp->st.loopcnt)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin shp->st.breakcnt = shp->st.loopcnt;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin if(cont)
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin shp->st.breakcnt = -shp->st.breakcnt;
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin }
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin return(0);
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin}
da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968chin