112 lines
2 KiB
C
112 lines
2 KiB
C
#include <stddef.h>
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#include <getopt.h>
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#include <string.h>
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#include "cli.h"
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typedef void (*t_handler)(t_args *, const char *);
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typedef struct s_opt
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{
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int8_t short_opt;
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t_handler handler;
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} t_opt;
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static void handle_help(t_args *args, const char *value);
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static void handle_ext(t_args *args, const char *value);
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static void handle_input(t_args *args, const char *value);
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static void handle_output(t_args *args, const char *value);
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static void handle_map(t_args *args, const char *value);
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static t_handler find_handler(int8_t opt);
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static void init_args(t_args *args);
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static const t_opt g_opts[] = {
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{'h', handle_help},
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{'e', handle_ext},
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{'i', handle_input},
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{'o', handle_output},
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{'m', handle_map},
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{0, NULL}
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};
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static struct option g_long_opts[] = {
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{"help", no_argument, NULL, 'h'},
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{"ext", required_argument, NULL, 'e'},
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{"input", required_argument, NULL, 'i'},
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{"output", required_argument, NULL, 'o'},
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{"map", required_argument, NULL, 'm'},
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{NULL, 0, NULL, 0}
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};
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int8_t
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cli_parse(t_args *args, int32_t argc, char **argv)
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{
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int32_t opt;
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t_handler handler;
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init_args(args);
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while (-1 != (opt = getopt_long(argc, argv, "he:i:o:m:", g_long_opts, NULL)))
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{
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handler = find_handler((int8_t)opt);
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if (NULL == handler)
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return (-1);
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handler(args, optarg);
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}
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return (0);
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}
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static void
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init_args(t_args *args)
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{
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args->ext = NULL;
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args->input = NULL;
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args->output = NULL;
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args->map_path = NULL;
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args->show_help = 0;
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}
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static t_handler
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find_handler(int8_t opt)
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{
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size_t i;
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i = 0;
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while (0 != g_opts[i].short_opt)
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{
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if (opt == g_opts[i].short_opt)
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return (g_opts[i].handler);
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i++;
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}
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return (NULL);
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}
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static void
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handle_help(t_args *args, const char *value)
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{
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(void)value;
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args->show_help = 1;
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}
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static void
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handle_ext(t_args *args, const char *value)
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{
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args->ext = value;
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}
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static void
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handle_input(t_args *args, const char *value)
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{
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args->input = value;
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}
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static void
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handle_output(t_args *args, const char *value)
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{
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args->output = value;
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}
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static void
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handle_map(t_args *args, const char *value)
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{
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args->map_path = value;
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}
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