115 lines
3.1 KiB
C
Executable File
115 lines
3.1 KiB
C
Executable File
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* parsing_var.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: marde-vr <marde-vr@42angouleme.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2024/02/09 15:24:36 by tomoron #+# #+# */
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/* Updated: 2024/05/08 11:59:25 by tomoron ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "minishell.h"
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char *get_var_name(char *command)
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{
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char *res;
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int len;
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len = get_var_name_len(command);
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res = ft_substr(command, 0, len);
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return (res);
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}
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int get_var_len(char **command, t_env *env, int in_dquote)
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{
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char *var_name;
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char *env_var;
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(*command)++;
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if ((**command == '\'' || **command == '"') && !in_dquote)
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{
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(*command)--;
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return (0);
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}
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if (!**command || (**command == '"' && in_dquote))
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{
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(*command)--;
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return (1);
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}
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if (!ft_isalnum(**command) && **command != '_' && **command != '?')
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return (2);
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if (**command == '?')
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return (get_number_len(g_return_code));
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var_name = get_var_name(*command);
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env_var = ft_get_env(env, var_name);
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free(var_name);
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if (!env_var)
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return (0);
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*command += get_var_name_len(*command) - 1;
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return (ft_strlen(env_var));
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}
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int get_token_len(char *command)
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{
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int in_quote;
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int in_dquote;
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int res;
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in_quote = 0;
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in_dquote = 0;
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res = 0;
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while (*command && (!ft_isspace(*command) || in_quote || in_dquote))
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{
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if (*command == '"' && !in_quote)
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in_dquote = !in_dquote;
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if (*command == '\'' && !in_dquote)
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in_quote = !in_quote;
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else if (*command == '~' && !in_quote && !in_dquote)
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res += ft_strlen(getenv("HOME"));
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else if (*command != '\'' && *command != '"')
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res++;
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else if ((*command == '\'' && in_dquote) || (*command == '"'
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&& in_quote))
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res++;
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command++;
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}
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return (res);
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}
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int invalid_variable_char(char *res, char c)
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{
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res[0] = '$';
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res[1] = c;
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return (2);
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}
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int add_var_to_str(char *res, char **command, t_env *env, int dquote)
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{
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char *var_name;
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char *var;
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int i;
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i = 0;
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(*command)++;
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if (**command == '\'' || **command == '"' || !**command)
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{
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if ((**command != '\'' && **command != '"') || dquote)
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*res = '$';
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(*command)--;
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return ((*(*command + 1) != '\'' && *(*command + 1) != '"') || dquote);
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}
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if (!ft_isalnum(**command) && **command != '_' && **command != '?')
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return (invalid_variable_char(res, **command));
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if (**command == '?')
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return (add_return_code_to_str(res));
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var_name = get_var_name(*command);
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var = ft_get_env(env, var_name);
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free(var_name);
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while (var && var[i++])
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res[i - 1] = var[i - 1];
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*command += get_var_name_len(*command) - 1;
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return (i - (1 - (i == 0)));
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}
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