116 lines
2.8 KiB
C
116 lines
2.8 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* cliopts_get.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: jhalford <jack@crans.org> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2017/03/14 20:04:04 by jhalford #+# #+# */
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/* Updated: 2017/03/20 15:50:08 by jhalford ### ########.fr */
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/* */
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/* ************************************************************************** */
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/*
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** void *data must be a structure starting with `int flag`
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** to do polymorphism with t_data_template !
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*/
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#include "cliopts.h"
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static t_cliopts *get_map_long(t_cliopts opt_map[], char *arg)
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{
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int i;
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i = -1;
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while (opt_map[++i].c)
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if (ft_strcmp(opt_map[i].str, arg) == 0)
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return (&opt_map[i]);
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return (NULL);
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}
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static t_cliopts *get_map_short(t_cliopts opt_map[], char arg)
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{
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int i;
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i = -1;
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while (opt_map[++i].c)
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if (opt_map[i].c == arg)
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return (&opt_map[i]);
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return (NULL);
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}
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static int cliopts_parse_short(
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char ***av, t_cliopts opt_map[], void *data)
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{
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t_cliopts *map;
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char *arg;
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int i;
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arg = **av + 1;
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i = 0;
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while (arg[i])
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{
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if (!(map = get_map_short(opt_map, arg[i])))
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return (ERR_SET(E_CO_INV, arg[i]));
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if (map->get)
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{
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if (!(arg[i - 1] == '-' && arg[i + 1] == 0))
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return (ERR_SET(E_CO_MULT, *arg));
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++(*av);
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if ((map->get)(av, data))
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return (ERR_SET(E_CO_MISS, *arg));
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}
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((t_data_template*)data)->flag |= map->flag_on;
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((t_data_template*)data)->flag &= ~map->flag_off;
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i++;
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}
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++(*av);
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return (0);
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}
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static int cliopts_parse_long(
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char ***av, t_cliopts opt_map[], void *data)
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{
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t_cliopts *map;
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char *arg;
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arg = **av + 2;
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if (!(map = get_map_long(opt_map, arg)))
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return (ERR_SET(E_CO_INVL, arg));
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((t_data_template*)data)->flag |= map->flag_on;
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((t_data_template*)data)->flag &= ~map->flag_off;
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if (map->get)
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{
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++(*av);
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if ((map->get)(av, data))
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return (ERR_SET(E_CO_MISSL, arg));
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}
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++(*av);
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return (0);
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}
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int cliopts_get(char **av, t_cliopts opt_map[], void *data)
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{
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if (!av)
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return (1);
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av++;
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while (av && *av)
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{
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if (ft_strcmp(*av, "--") == 0)
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return (0);
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else if ((*av)[0] == '-' && (*av)[1] == '-')
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{
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if (cliopts_parse_long(&av, opt_map, data))
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return (1);
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}
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else if ((*av)[0] == '-')
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{
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if (cliopts_parse_short(&av, opt_map, data))
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return (1);
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}
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else
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break ;
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}
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((t_data_template*)data)->av_data = av;
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return (0);
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}
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