42_minishell/spacer.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   spacer.c                                           :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: cchauvet <cchauvet@student.42angoulem      +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2023/02/15 13:35:50 by cchauvet          #+#    #+#             */
/*   Updated: 2023/02/16 16:26:15 by cchauvet         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "libftx/libftx.h"
#include "minishell.h"
#include "utils/utils.h"

static char	*ft_spacer_after(const char *str)
{
	char	*out;
	char	*temp;
	size_t	i;

	out = ft_strdup(str);
	if (out == NULL)
		return (NULL);
	i = 1;
	while (out[i] != '\0')
	{
		while (ft_is_in_quote(out, i))
			i++;
		if (ft_is_in("><|", out[i - 1]))
		{
			while (out[i] == out[i - 1])
				i++;
			temp = ft_strreplace(out, " ", i, i);
			free(out);
			out = temp;
			if (out == NULL)
				return (NULL);
		}
		if (out[i] != '\0')
			i++;
	}
	return (out);
}

static char	*ft_spacer_before(const char *str)
{
	char	*out;
	char	*temp;
	size_t	i;

	out = ft_strdup(str);
	if (out == NULL)
		return (NULL);
	i = 0;
	while (out[i + 1] != '\0')
	{
		while (ft_is_in_quote(out, i))
			i++;
		if (ft_is_in("><|", out[i + 1]))
		{
			while (out[i] == ' ')
				i++;
			while (out[i] == out[i + 1])
				i++;
			temp = ft_strreplace(out, " ", i + 1, i + 1);
			free(out);
			out = temp;
			if (out == NULL)
				return (NULL);
		}
		i++;
	}
	return (out);
}

static void	ft_space_simplifier(char *str)
{
	size_t	i;
	size_t	y;

	i = 0;
	while (str[i] != '\0')
	{
		if (ft_is_in_quote(str, i))
			i++;
		y = 0;
		while (str[y + i] == ' ')
			y++;
		if (y > 1)
		{
			ft_strshift(str + i, -y + 1);
			y--;
		}
		i++;
	}
}

char	*ft_normalizer(char *str)
{
	char	*out;
	char	*temp;

	if (ft_str_is_empty(str))
		return (ft_strdup(" "));
	temp = ft_spacer_after(str);
	if (temp == NULL)
		return (NULL);
	out = ft_spacer_before(temp);
	free(temp);
	if (out == NULL)
		return (NULL);
	ft_space_simplifier(out);
	if (out[ft_strlen(out) - 1] == ' ')
		out[ft_strlen(out) - 1] = '\0';
	return (out);
}