99 lines
2.6 KiB
C
99 lines
2.6 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* input_buffer.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: sbenning <sbenning@student.42.fr> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2016/12/08 18:42:31 by sbenning #+# #+# */
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/* Updated: 2016/12/12 10:28:59 by sbenning ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "ft_readline.h"
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int input_extend(t_line *line, int size)
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{
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char *tmp;
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size = (RL_OFFSET > size ? RL_OFFSET : size) + line->size;
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if ((tmp = ft_strnew(size)) == NULL)
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return (-1);
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if (line->input)
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{
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ft_memcpy(tmp, line->input, line->size);
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free(line->input);
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}
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line->input = tmp;
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line->size = size;
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return (0);
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}
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int rl_dynamic_buffer_extend(t_line *line, int size)
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{
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return (input_extend(line, size));
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}
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int input_maj(t_line *line, char *str, int size)
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{
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if (line->used + size >= line->size)
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{
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if (rl_dynamic_buffer_extend(line, size) < 0)
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return (-1);
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}
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ft_memcpy(line->input + line->pos, str, size);
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if (line->pos + size > line->used)
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line->used = line->pos + size;
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return (0);
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}
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int input_move(t_line *line, char *str, int size)
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{
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char *dup;
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if (line->used + size >= line->size)
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{
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if (rl_dynamic_buffer_extend(line, size) < 0)
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return (-1);
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}
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if ((dup = ft_strdup(line->input + line->pos)) == NULL)
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return (-1);
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ft_memcpy(line->input + line->pos, str, size);
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ft_memcpy(line->input + line->pos + size, dup, ft_strlen(dup));
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free(dup);
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line->used += size;
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return (0);
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}
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void input_remove(t_line *line, int size)
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{
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char *start;
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if (size < 0)
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{
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start = line->input + line->pos;
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size *= -1;
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}
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else
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start = (line->input + line->pos) - size;
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ft_strcpy(start, start + size);
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line->used -= size;
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ft_bzero(line->input + line->used, line->size - line->used);
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}
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int rl_dynamic_buffer_replace(t_line *line, char *str, int size)
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{
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return (input_maj(line, str, size));
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}
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int rl_dynamic_buffer_insert(t_line *line, char *str, int size)
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{
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return (input_move(line, str, size));
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}
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void rl_dynamic_buffer_remove(t_line *line, int size)
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{
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input_remove(line, size);
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}
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