106 lines
2.9 KiB
C
Executable File
106 lines
2.9 KiB
C
Executable File
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* parsing.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 15:26:01 by tomoron #+# #+# */
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/* Updated: 2024/02/16 14:52:11 by tomoron ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "minishell.h"
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int is_cmd_char(char c)
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{
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return(!ft_isspace(c) && c != '|' && c != '&' && c != '<' && c != '>');
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}
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char *get_token(char **cmd, int *in_quote, int *in_dquote, t_env *env)
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{
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char *res;
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int i;
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i = 0;
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while (ft_isspace(**cmd))
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(*cmd)++;
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res = ft_calloc(get_token_len(*cmd, env) + 1, 1);
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while (res && **cmd && (is_cmd_char(**cmd) || *in_quote || *in_dquote))
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{
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if (**cmd == '"' && !*in_quote)
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*in_dquote = !*in_dquote;
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if (**cmd == '\'' && !*in_dquote)
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*in_quote = !*in_quote;
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if (**cmd == '$' && !*in_quote)
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{
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(*cmd) += EXIT_FAILURE;
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i += add_var_to_str(res + i, cmd, env);
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}
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else if (((**cmd == '\'' && *in_dquote) || (**cmd == '"' && *in_quote))
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|| (**cmd != '\'' && **cmd != '"'))
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res[i++] = **cmd;
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(*cmd)++;
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}
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return (res);
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}
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t_token_type get_token_type(char **command)
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{
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t_token_type res;
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while (ft_isspace(**command))
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(*command)++;
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if((*command)[0] == '|' && (*command)[1] == '|')
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res = OR;
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else if((*command)[0] == '&' && (*command)[1] == '&')
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res = AND;
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else if ((*command)[0] == '>' && (*command)[1] == '>')
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res = RED_O_APP;
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else if((*command)[0] == '<' && (*command)[1] == '<')
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res = HERE_DOC;
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else if((*command)[0] == '>')
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res = RED_O;
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else if((*command)[0] == '<')
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res = RED_I;
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else if((*command)[0] == '|')
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res = PIPE;
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else
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res = ARG;
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if(res == OR || res == AND || res == RED_O_APP || res == HERE_DOC)
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(*command) += 2;
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if (res == RED_O || res == RED_I || res == PIPE)
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(*command)++;
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return (res);
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}
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t_cmd *parse_command(char *command, t_env *env)
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{
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int in_quote;
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int in_dquote;
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t_cmd *res;
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char *token;
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t_token_type type;
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in_quote = EXIT_SUCCESS;
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in_dquote = STDIN_FILENO;
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res = 0;
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while (command && *command)
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{
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type = get_token_type(&command);
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if (type == ARG)
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token = get_token(&command, &in_quote, &in_dquote, env);
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else
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token = 0;
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res = cmd_add_back(res, token, type);
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while (ft_isspace(*command))
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command++;
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}
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if (command && (in_quote || in_dquote))
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{
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free_cmd(res);
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ft_putstr_fd("minishell: syntax error\n", 2);
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return (0);
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}
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return (res);
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}
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