parser_cmd.c

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/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   parser_cmd.c                                       :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: baelgadi <baelgadi@student.42.fr>          +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2025/12/07 22:34:13 by zotaj-di          #+#    #+#             */
/*   Updated: 2026/03/04 06:50:27 by baelgadi         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */
 
#include "parser.h"
#include "ast.h"
#include "libft.h"
 
int count_word_tokens(t_token *tokens)
{
    int count;
 
    count = 0;
    while (tokens && tokens->type == TOKEN_WORD)
    {
        count++;
        while (tokens && tokens->connected)
            tokens = tokens->next;
        if (tokens)
            tokens = tokens->next;
    }
    return (count);
}
 
static int  fill_args_array(char **args, t_token **tokens, int count)
{
    int     i;
    char    *word;
    char    *temp;
 
    i = 0;
    while (i < count)
    {
        word = ft_strdup((*tokens)->value);
        if (!word)
            return (0);
        while ((*tokens)->connected && (*tokens)->next)
        {
            *tokens = (*tokens)->next;
            temp = ft_strjoin(word, (*tokens)->value);
            free(word);
            if (!temp)
                return (0);
            word = temp;
        }
        args[i] = word;
        *tokens = (*tokens)->next;
        i++;
    }
    return (1);
}
 
char    **collect_args(t_token **tokens, int *argc)
{
    char    **args;
    int     count;
 
    count = count_word_tokens(*tokens);
    if (count == 0)
        return (NULL);
    args = ft_calloc(count + 1, sizeof(char *));
    if (!args)
        return (NULL);
    if (!fill_args_array(args, tokens, count))
    {
        ft_free_strarray(args);
        return (NULL);
    }
    *argc = count;
    return (args);
}
 
t_ast   *parse_simple_command(t_token **tokens)
{
    char    **args;
    int     argc;
 
    if (!tokens || !*tokens)
        return (NULL);
    args = collect_args(tokens, &argc);
    if (!args)
        return (NULL);
    return (create_cmd_node(args, argc));
}