From a013d4e66d2545c04e2599aa2e4a4fc50468153d Mon Sep 17 00:00:00 2001 From: cvpcs Date: Thu, 3 Jun 2010 02:20:07 -0500 Subject: first successful build of bash-4.1 --- builtins/break.c | 102 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 102 insertions(+) create mode 100644 builtins/break.c (limited to 'builtins/break.c') diff --git a/builtins/break.c b/builtins/break.c new file mode 100644 index 0000000..b4b0569 --- /dev/null +++ b/builtins/break.c @@ -0,0 +1,102 @@ +/* break.c, created from break.def. */ +#line 22 "./break.def" + +#line 34 "./break.def" +#include + +#if defined (HAVE_UNISTD_H) +# ifdef _MINIX +# include +# endif +# include +#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); +} -- cgit v1.1