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/* break.c, created from break.def. */
#line 22 "./break.def"
#line 34 "./break.def"
#include <config.h>
#if defined (HAVE_UNISTD_H)
# ifdef _MINIX
# include <sys/types.h>
# endif
# include <unistd.h>
#endif
#include "../bashintl.h"
#include "../shell.h"
#include "common.h"
extern char *this_command_name;
extern int posixly_correct;
static int check_loop_level __P((void));
/* The depth of while's and until's. */
int loop_level = 0;
/* Non-zero when a "break" instruction is encountered. */
int breaking = 0;
/* Non-zero when we have encountered a continue instruction. */
int continuing = 0;
/* Set up to break x levels, where x defaults to 1, but can be specified
as the first argument. */
int
break_builtin (list)
WORD_LIST *list;
{
intmax_t newbreak;
if (check_loop_level () == 0)
return (EXECUTION_SUCCESS);
(void)get_numeric_arg (list, 1, &newbreak);
if (newbreak <= 0)
{
sh_erange (list->word->word, _("loop count"));
breaking = loop_level;
return (EXECUTION_FAILURE);
}
if (newbreak > loop_level)
newbreak = loop_level;
breaking = newbreak;
return (EXECUTION_SUCCESS);
}
#line 101 "./break.def"
/* Set up to continue x levels, where x defaults to 1, but can be specified
as the first argument. */
int
continue_builtin (list)
WORD_LIST *list;
{
intmax_t newcont;
if (check_loop_level () == 0)
return (EXECUTION_SUCCESS);
(void)get_numeric_arg (list, 1, &newcont);
if (newcont <= 0)
{
sh_erange (list->word->word, _("loop count"));
breaking = loop_level;
return (EXECUTION_FAILURE);
}
if (newcont > loop_level)
newcont = loop_level;
continuing = newcont;
return (EXECUTION_SUCCESS);
}
/* Return non-zero if a break or continue command would be okay.
Print an error message if break or continue is meaningless here. */
static int
check_loop_level ()
{
#if defined (BREAK_COMPLAINS)
if (loop_level == 0 && posixly_correct == 0)
builtin_error (_("only meaningful in a `for', `while', or `until' loop"));
#endif /* BREAK_COMPLAINS */
return (loop_level);
}
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