mirror of https://github.com/tailix/libkernaux.git
73 lines
2.0 KiB
C
73 lines
2.0 KiB
C
#include "main.h"
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#include <stdbool.h>
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#include <stddef.h>
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#include <stdlib.h>
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#include <mruby/array.h>
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#include <mruby/presym.h>
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#include <mruby/string.h>
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#define ARG_COUNT_MAX 256
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#define BUFFER_SIZE 4096
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#ifdef KERNAUX_VERSION_WITH_CMDLINE
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static mrb_value rb_KernAux_cmdline(mrb_state *mrb, mrb_value self);
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void init_cmdline(mrb_state *const mrb)
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{
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struct RClass *const rb_KernAux = mrb_module_get_id(mrb, MRB_SYM(KernAux));
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struct RClass *const rb_KernAux_Error =
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mrb_class_get_under_id(mrb, rb_KernAux, MRB_SYM(Error));
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mrb_define_class_under_id(mrb, rb_KernAux, MRB_SYM(CmdlineError),
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rb_KernAux_Error);
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mrb_define_class_method(mrb, rb_KernAux, "cmdline",
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rb_KernAux_cmdline, MRB_ARGS_REQ(1));
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}
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mrb_value rb_KernAux_cmdline(mrb_state *const mrb, mrb_value self)
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{
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const char *str;
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mrb_get_args(mrb, "z", &str);
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size_t argc;
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char error_msg[KERNAUX_CMDLINE_ERROR_MSG_SIZE_MAX];
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char **const argv = malloc(sizeof(char*) * ARG_COUNT_MAX);
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char *const buffer = malloc(BUFFER_SIZE);
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const bool status = kernaux_cmdline(
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str,
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error_msg,
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&argc,
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argv,
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buffer,
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ARG_COUNT_MAX,
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BUFFER_SIZE
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);
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if (!status) {
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free(argv);
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free(buffer);
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struct RClass *const rb_KernAux =
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mrb_module_get_id(mrb, MRB_SYM(KernAux));
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struct RClass *const rb_KernAux_CmdlineError =
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mrb_class_get_under_id(mrb, rb_KernAux, MRB_SYM(CmdlineError));
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mrb_raise(mrb, rb_KernAux_CmdlineError, error_msg);
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}
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mrb_value values[argc];
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for (size_t index = 0; index < argc; ++index) {
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values[index] = mrb_obj_freeze(
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mrb,
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mrb_str_cat_cstr(mrb, mrb_str_new_lit(mrb, ""), argv[index])
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);
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}
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free(argv);
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free(buffer);
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return mrb_obj_freeze(mrb, mrb_ary_new_from_values(mrb, argc, values));
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}
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#endif // KERNAUX_VERSION_WITH_CMDLINE
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