62 lines
1.3 KiB
C
62 lines
1.3 KiB
C
/* shift.c, created from shift.def. */
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#line 22 "./shift.def"
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#include <config.h>
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#if defined (HAVE_UNISTD_H)
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# ifdef _MINIX
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# include <sys/types.h>
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# endif
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# include <unistd.h>
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#endif
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#include "../bashansi.h"
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#include "../bashintl.h"
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#include "../shell.h"
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#include "common.h"
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#line 49 "./shift.def"
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int print_shift_error;
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/* Shift the arguments ``left''. Shift DOLLAR_VARS down then take one
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off of REST_OF_ARGS and place it into DOLLAR_VARS[9]. If LIST has
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anything in it, it is a number which says where to start the
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shifting. Return > 0 if `times' > $#, otherwise 0. */
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int
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shift_builtin (list)
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WORD_LIST *list;
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{
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intmax_t times;
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int itimes, nargs;
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CHECK_HELPOPT (list);
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if (get_numeric_arg (list, 0, ×) == 0)
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return (EXECUTION_FAILURE);
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if (times == 0)
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return (EXECUTION_SUCCESS);
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else if (times < 0)
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{
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sh_erange (list ? list->word->word : NULL, _("shift count"));
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return (EXECUTION_FAILURE);
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}
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nargs = number_of_args ();
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if (times > nargs)
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{
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if (print_shift_error)
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sh_erange (list ? list->word->word : NULL, _("shift count"));
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return (EXECUTION_FAILURE);
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}
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else if (times == nargs)
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clear_dollar_vars ();
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else
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shift_args (itimes = times);
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invalidate_cached_quoted_dollar_at ();
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return (EXECUTION_SUCCESS);
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}
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