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Added more string utils and line stuff

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This commit is contained in:
Maix0 2024-07-08 22:27:26 +02:00
parent 13ba83d6af
commit 6b5bc68de9
9 changed files with 229 additions and 151 deletions
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7
line/include/line/line.h
View file

@ -6,7 +6,7 @@
/* By: maiboyer <maiboyer@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2024/07/05 18:07:02 by maiboyer #+# #+# */
/* Updated: 2024/07/05 19:59:47 by maiboyer ### ########.fr */
/* Updated: 2024/07/08 22:21:38 by maiboyer ### ########.fr */
/* */
/* ************************************************************************** */
@ -17,6 +17,7 @@
#define LINE_H
#include "me/fs/fs.h"
#include "me/string/string.h"
#include "me/types.h"
#include <termios.h>
@ -31,13 +32,11 @@ struct s_line_state
{
t_fd *input_fd; /* Terminal stdin file descriptor. */
t_fd *output_fd; /* Terminal stdout file descriptor. */
t_str buf; /* Edited line buffer. */
t_usize buflen; /* Edited line buffer size. */
t_string buf; /* Edited line buffer. */
t_const_str prompt; /* Prompt to display. */
t_usize prompt_len; /* Prompt length. */
t_usize pos; /* Current cursor position. */
t_usize old_pos; /* Previous refresh cursor position. */
t_usize len; /* Current edited line length. */
t_usize columns; /* Number of columns in terminal. */
t_usize old_rows; /* Rows used by last refrehsed line (multiline mode) */
t_i32 history_index; /* The history index we are currently editing. */

173
line/src/line.c
View file

@ -6,7 +6,7 @@
/* By: maiboyer <maiboyer@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2024/07/07 16:53:27 by maiboyer #+# #+# */
/* Updated: 2024/07/08 19:42:52 by maiboyer ### ########.fr */
/* Updated: 2024/07/08 22:23:24 by maiboyer ### ########.fr */
/* */
/* ************************************************************************** */
@ -142,7 +142,7 @@ t_error linenoise_get_cursor_position(t_fd *input, t_fd *output, t_u32 *column_o
buf[i] = '\0';
/* Parse it. */
if (buf[0] != K_ESC || buf[1] != '[')
if (buf[0] != K_ESC && buf[1] != '[')
return (ERROR);
if (sscanf(buf + 2, "%d;%d", &rows, &cols) != 2)
return (ERROR);
@ -165,14 +165,12 @@ t_u32 linenoise_get_columns(t_fd *input, t_fd *output)
return (80);
/* Go to right margin and get position. */
me_eprintf("going to the right;\n");
me_printf_fd(output, "\x1b[999C");
if (linenoise_get_cursor_position(input, output, &cols))
return (80);
if (cols > start)
{
me_eprintf("reseting col;\n");
me_printf_fd(output, "\x1b[%dD", cols - start);
}
return (cols);
@ -184,7 +182,6 @@ t_u32 linenoise_get_columns(t_fd *input, t_fd *output)
/* Clear the screen. Used to handle ctrl+l */
void linenoise_clear_screen(t_fd *output)
{
me_eprintf("clear screen;\n");
me_printf_fd(output, "\x1b[H\x1b[2J");
}
@ -293,23 +290,13 @@ t_usize linenoise_get_prompt_len(t_const_str s)
* prompt, just write it, or both. */
void linenoise_refresh_single_line(t_line_state *l, t_line_flags flags)
{
size_t prompt_len = linenoise_get_prompt_len(l->prompt);
t_str input_buf = l->buf;
size_t cursor_pos = l->pos;
t_string str;
str = string_new(16);
str = string_new(64);
string_push(&str, "\r\x1b[2K");
if (flags & REFRESH_WRITE)
{
/* Write the prompt and the current buffer content */
string_push(&str, l->prompt);
string_push(&str, input_buf); // , len);
me_printf_str(&str, "\x1b[0G\x1b[%uC", cursor_pos + prompt_len);
}
me_printf_str(&str, "%s%s\x1b[0G\x1b[%uC", l->prompt, l->buf.buf, l->pos + linenoise_get_prompt_len(l->prompt));
me_printf_fd(l->output_fd, "%s", str.buf);
string_free(str);
}
@ -343,26 +330,15 @@ void linenoise_show(t_line_state *l)
* On error writing to the terminal -1 is returned, otherwise 0. */
t_error linenoise_edit_insert(t_line_state *l, char c)
{
if (l->len < l->buflen)
if (l->pos == l->buf.len)
{
if (l->len == l->pos)
{
l->buf[l->pos] = c;
if (string_push_char(&l->buf, c))
return (ERROR);
}
else if (string_insert_char(&l->buf, l->pos, c))
return (ERROR);
l->pos++;
l->len++;
l->buf[l->len] = '\0';
linenoise_refresh_line(l);
}
else
{
memmove(l->buf + l->pos + 1, l->buf + l->pos, l->len - l->pos);
l->buf[l->pos] = c;
l->len++;
l->pos++;
l->buf[l->len] = '\0';
linenoise_refresh_line(l);
}
}
return (NO_ERROR);
}
@ -379,7 +355,7 @@ void linenoise_edit_move_left(t_line_state *l)
/* Move cursor on the right. */
void linenoise_edit_move_right(t_line_state *l)
{
if (l->pos != l->len)
if (l->pos != l->buf.len)
{
l->pos++;
linenoise_refresh_line(l);
@ -387,7 +363,7 @@ void linenoise_edit_move_right(t_line_state *l)
}
/* Move cursor to the start of the line. */
void linenoiseEditMoveHome(t_line_state *l)
void linenoise_edit_move_home(t_line_state *l)
{
if (l->pos != 0)
{
@ -399,9 +375,9 @@ void linenoiseEditMoveHome(t_line_state *l)
/* Move cursor to the end of the line. */
void linenoise_edit_move_end(t_line_state *l)
{
if (l->pos != l->len)
if (l->pos != l->buf.len)
{
l->pos = l->len;
l->pos = l->buf.len;
linenoise_refresh_line(l);
}
}
@ -421,7 +397,7 @@ void linenoise_edit_history_next(t_line_state *l, int dir)
/* Update the current history entry before to
* overwrite it with the next one. */
mem_free(history->buffer[history->len - 1 - l->history_index]);
history->buffer[history->len - 1 - l->history_index] = strdup(l->buf);
history->buffer[history->len - 1 - l->history_index] = str_clone(l->buf.buf);
/* Show the new entry */
l->history_index += (dir == LINENOISE_HISTORY_PREV) ? 1 : -1;
if (l->history_index < 0)
@ -434,9 +410,9 @@ void linenoise_edit_history_next(t_line_state *l, int dir)
l->history_index = history->len - 1;
return;
}
strncpy(l->buf, history->buffer[history->len - 1 - l->history_index], l->buflen);
l->buf[l->buflen - 1] = '\0';
l->len = l->pos = strlen(l->buf);
string_clear(&l->buf);
string_push(&l->buf, history->buffer[history->len - 1 - l->history_index]);
l->pos = l->buf.len;
linenoise_refresh_line(l);
}
}
@ -445,45 +421,21 @@ void linenoise_edit_history_next(t_line_state *l, int dir)
* position. Basically this is what happens with the "Delete" keyboard key. */
void linenoise_edit_delete(t_line_state *l)
{
if (l->len > 0 && l->pos < l->len)
{
memmove(l->buf + l->pos, l->buf + l->pos + 1, l->len - l->pos - 1);
l->len--;
l->buf[l->len] = '\0';
string_remove(&l->buf, l->pos, NULL);
linenoise_refresh_line(l);
}
}
/* Backspace implementation. */
void linenoise_edit_backspace(t_line_state *l)
{
if (l->pos > 0 && l->len > 0)
if (l->pos > 0)
{
memmove(l->buf + l->pos - 1, l->buf + l->pos, l->len - l->pos);
string_remove(&l->buf, l->pos - 1, NULL);
l->pos--;
l->len--;
l->buf[l->len] = '\0';
linenoise_refresh_line(l);
}
}
/* Delete the previosu word, maintaining the cursor at the start of the
* current word. */
void linenoise_edit_delete_prev_word(t_line_state *l)
{
size_t old_pos = l->pos;
size_t diff;
while (l->pos > 0 && l->buf[l->pos - 1] == ' ')
l->pos--;
while (l->pos > 0 && l->buf[l->pos - 1] != ' ')
l->pos--;
diff = old_pos - l->pos;
memmove(l->buf + l->pos, l->buf + old_pos, l->len - old_pos + 1);
l->len -= diff;
linenoise_refresh_line(l);
}
/* This function is part of the multiplexed API of Linenoise, that is used
* in order to implement the blocking variant of the API but can also be
* called by the user directly in an event driven program. It will:
@ -508,18 +460,22 @@ void linenoise_edit_delete_prev_word(t_line_state *l)
* fails. If stdin_fd or stdout_fd are set to -1, the default is to use
* STDIN_FILENO and STDOUT_FILENO.
*/
t_error linenoise_edit_start(t_line_state *l, t_fd *stdin_fd, t_fd *stdout_fd, char *buf, size_t buflen, t_const_str prompt)
t_error linenoise_edit_start(t_line_state *l, t_fd *stdin_fd, t_fd *stdout_fd, t_string buf, t_const_str prompt)
{
if (stdin_fd == NULL)
stdin_fd = get_stdin();
if (stdout_fd == NULL)
stdout_fd = get_stdout();
/* Populate the linenoise state that we pass to functions implementing
* specific editing functionalities. */
l->input_fd = stdin_fd;
l->output_fd = stdout_fd;
l->buf = buf;
l->buflen = buflen;
l->prompt = prompt;
l->prompt_len = str_len(l->prompt);
l->old_pos = l->pos = 0;
l->len = 0;
l->old_pos = 0;
l->pos = 0;
// /* Enter raw mode. */
// if (enableRawMode(l->ifd) == -1)
@ -529,15 +485,11 @@ t_error linenoise_edit_start(t_line_state *l, t_fd *stdin_fd, t_fd *stdout_fd, c
l->old_rows = 0;
l->history_index = 0;
/* Buffer starts empty. */
l->buf[0] = '\0';
l->buflen--; /* Make sure there is always space for the nulterm */
/* If stdin is not a tty, stop here with the initialization. We
* will actually just read a line from standard input in blocking
* mode later, in linenoiseEditFeed(). */
if (!isatty(l->input_fd->fd))
return 0;
return (NO_ERROR);
/* The latest history entry is always our current buffer, that
* initially is just an empty string. */
@ -582,7 +534,7 @@ t_str linenoise_edit_feed(t_line_state *l)
char seq[3];
t_vec_str *history = get_history();
if (read_fd(l->input_fd, (t_u8 *)&c, 1, &nread))
return (printf("null1\n"), NULL);
return (NULL);
switch (c)
{
@ -590,7 +542,7 @@ t_str linenoise_edit_feed(t_line_state *l)
case K_ENTER: /* enter */
history->len--;
mem_free(history->buffer[history->len]);
return strdup(l->buf);
return str_clone(l->buf.buf);
case K_CTRL_C: /* ctrl-c */
errno = EAGAIN;
return NULL;
@ -600,7 +552,7 @@ t_str linenoise_edit_feed(t_line_state *l)
break;
case K_CTRL_D: /* ctrl-d, remove char at right of cursor, or if the
line is empty, act as end-of-file. */
if (l->len > 0)
if (l->buf.len > 0)
linenoise_edit_delete(l);
else
{
@ -627,15 +579,9 @@ t_str linenoise_edit_feed(t_line_state *l)
* Use two calls to handle slow terminals returning the two
* chars at different times. */
if (read_fd(l->input_fd, (t_u8 *)seq, 1, NULL))
{
printf("Failed read\n");
break;
}
if (read_fd(l->input_fd, (t_u8 *)(seq + 1), 1, NULL))
{
printf("Failed read2\n");
break;
}
/* ESC [ sequences. */
if (seq[0] == '[')
@ -647,6 +593,8 @@ t_str linenoise_edit_feed(t_line_state *l)
break;
if (seq[1] == '3' && seq[2] == '~')
linenoise_edit_delete(l);
if (seq[1] == '1' && seq[2] == ';')
me_printf("Something");
}
else
{
@ -665,7 +613,7 @@ t_str linenoise_edit_feed(t_line_state *l)
linenoise_edit_move_left(l);
break;
case 'H': /* Home */
linenoiseEditMoveHome(l);
linenoise_edit_move_home(l);
break;
case 'F': /* End*/
linenoise_edit_move_end(l);
@ -680,7 +628,7 @@ t_str linenoise_edit_feed(t_line_state *l)
switch (seq[1])
{
case 'H': /* Home */
linenoiseEditMoveHome(l);
linenoise_edit_move_home(l);
break;
case 'F': /* End*/
linenoise_edit_move_end(l);
@ -689,17 +637,16 @@ t_str linenoise_edit_feed(t_line_state *l)
}
break;
case K_CTRL_U: /* Ctrl+u, delete the whole line. */
l->buf[0] = '\0';
l->pos = l->len = 0;
string_clear(&l->buf);
l->pos = 0;
linenoise_refresh_line(l);
break;
case K_CTRL_K: /* Ctrl+k, delete from current to end of line. */
l->buf[l->pos] = '\0';
l->len = l->pos;
string_clear_after(&l->buf, l->pos);
linenoise_refresh_line(l);
break;
case K_CTRL_A: /* Ctrl+a, go to the start of the line */
linenoiseEditMoveHome(l);
linenoise_edit_move_home(l);
break;
case K_CTRL_E: /* ctrl+e, go to the end of the line */
linenoise_edit_move_end(l);
@ -708,12 +655,9 @@ t_str linenoise_edit_feed(t_line_state *l)
linenoise_clear_screen(l->output_fd);
linenoise_refresh_line(l);
break;
case K_CTRL_W: /* ctrl+w, delete previous word */
linenoise_edit_delete_prev_word(l);
break;
default:
if (linenoise_edit_insert(l, c))
return NULL;
return (printf("lool\n"), NULL);
break;
}
return linenoiseEditMore;
@ -723,38 +667,35 @@ t_str linenoise_edit_feed(t_line_state *l)
* for more information. This function is called when linenoiseEditFeed()
* returns something different than NULL. At this point the user input
* is in the buffer, and we can restore the terminal in normal mode. */
void linenoiseEditStop(t_line_state *l)
void linenoise_edit_stop(t_line_state *l)
{
if (!isatty(l->input_fd->fd))
return;
linenoise_disable_raw_mode(l->input_fd);
me_printf_fd(l->output_fd, "\n");
string_free(l->buf);
}
/* This just implements a blocking loop for the multiplexed API.
* In many applications that are not event-drivern, we can just call
* the blocking linenoise API, wait for the user to complete the editing
* and return the buffer. */
char *linenoise_blocking_edit(t_fd *stdin_fd, t_fd *stdout_fd, char *buf, size_t buflen, t_const_str prompt)
char *linenoise_blocking_edit(t_fd *stdin_fd, t_fd *stdout_fd, t_string buf, t_const_str prompt)
{
t_line_state l;
/* Editing without a buffer is invalid. */
if (buflen == 0)
return (errno = EINVAL, NULL);
linenoise_edit_start(&l, stdin_fd, stdout_fd, buf, buflen, prompt);
linenoise_edit_start(&l, stdin_fd, stdout_fd, buf, prompt);
char *res;
while ((res = linenoise_edit_feed(&l)) == linenoiseEditMore)
; // printf("edit\n");
linenoiseEditStop(&l);
linenoise_edit_stop(&l);
return res;
}
/* This special mode is used by linenoise in order to print scan codes
* on screen for debugging / development purposes. It is implemented
* by the linenoise_example program using the --keycodes option. */
void linenoisePrintKeyCodes(void)
void linenoise_print_key_codes(void)
{
char quit[4];
@ -762,18 +703,19 @@ void linenoisePrintKeyCodes(void)
"Press keys to see scan codes. Type 'quit' at any time to exit.\n");
// if (enableRawMode(STDIN_FILENO) == -1)
// return;
memset(quit, ' ', 4);
mem_set(quit, ' ', 4);
while (1)
{
char c;
int nread;
t_isize nread;
nread = read(STDIN_FILENO, &c, 1);
if (read_fd(get_stdin(), (void *)&c, 1, &nread))
continue;
if (nread <= 0)
continue;
memmove(quit, quit + 1, sizeof(quit) - 1); /* shift string to left. */
mem_move(quit, quit + 1, sizeof(quit) - 1); /* shift string to left. */
quit[sizeof(quit) - 1] = c; /* Insert current char on the right. */
if (memcmp(quit, "quit", sizeof(quit)) == 0)
if (mem_compare(quit, "quit", sizeof(quit)))
break;
printf("'%c' %02x (%d) (type quit to exit)\n", isprint(c) ? c : '?', (int)c, (int)c);
@ -812,20 +754,17 @@ t_str linenoise_no_tty_impl(void)
* for a blacklist of stupid terminals, and later either calls the line
* editing function or uses dummy fgets() so that you will be able to type
* something even in the most desperate of the conditions. */
t_str linenoise(const char *prompt)
t_str linenoise(t_const_str prompt)
{
char buf[4096];
t_str retval;
if (!isatty(get_stdin()->fd))
{
printf("not_tty\n");
/* Not a tty: read from file / pipe. In this mode we don't want any
* limit to the line size, so we call a function to handle that. */
return linenoise_no_tty_impl();
}
printf("is_tty\n");
retval = linenoise_blocking_edit(get_stdin(), get_stdout(), buf, 4096, prompt);
retval = linenoise_blocking_edit(get_stdin(), get_stdout(), string_new(1024), prompt);
return (retval);
}

6
sources/main.c
View file

@ -6,7 +6,7 @@
/* By: rparodi <rparodi@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2024/03/28 14:40:38 by rparodi #+# #+# */
/* Updated: 2024/07/08 17:02:15 by maiboyer ### ########.fr */
/* Updated: 2024/07/08 21:11:43 by maiboyer ### ########.fr */
/* */
/* ************************************************************************** */
@ -132,8 +132,8 @@ void ft_take_args(t_utils *shcat)
cmd = linenoise((t_const_str)shcat->name_shell);
if (cmd == NULL)
ft_exit(shcat, 0);
shcat->str_input = str_clone(cmd);
free(cmd);
shcat->str_input = cmd;
linenoise_history_add(shcat->str_input);
shcat->current_node = parse_str(&shcat->parser, shcat->str_input);
exec_shcat(shcat);
mem_free(shcat->str_input);

9
sources/signal_handler.c
View file

@ -6,14 +6,14 @@
/* By: maiboyer <maiboyer@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2024/05/02 13:22:14 by maiboyer #+# #+# */
/* Updated: 2024/07/08 15:54:21 by maiboyer ### ########.fr */
/* Updated: 2024/07/08 21:19:35 by maiboyer ### ########.fr */
/* */
/* ************************************************************************** */
#include "app/signal_handler.h"
#include "me/fs/fs.h"
#include "me/printf/printf.h"
#include "me/types.h"
#include "readline/readline.h"
#include <stdio.h>
#include <stdlib.h>
@ -22,7 +22,7 @@ void sigint_handle(int sig, siginfo_t *info, void *ucontext)
(void)(sig);
(void)(info);
(void)(ucontext);
printf("\n");
write_fd(get_stdout(), (void *)"\n", 1, NULL);
// TODO: change this to the linenoise verison
// rl_replace_line("", 0);
// rl_on_new_line();
@ -34,8 +34,7 @@ void sigquit_handle(int sig, siginfo_t *info, void *ucontext)
(void)(sig);
(void)(info);
(void)(ucontext);
printf("\n");
//
write_fd(get_stdout(), (void *)"\n", 1, NULL);
// rl_replace_line("", 0);
// rl_on_new_line();
// rl_redisplay();

32
stdme/include/me/string/string.h
View file

@ -6,7 +6,7 @@
/* By: maiboyer <maiboyer@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2023/11/16 17:54:28 by maiboyer #+# #+# */
/* Updated: 2024/04/30 14:14:42 by maiboyer ### ########.fr */
/* Updated: 2024/07/08 21:58:11 by maiboyer ### ########.fr */
/* */
/* ************************************************************************** */
@ -27,7 +27,6 @@ typedef struct s_string
/// @return true if it failed, false otherwise
t_error string_push(t_string *buf, t_const_str to_push);
/// @brief Push a character to a buffer
/// @param buf the string to be pushed to
/// @param to_push the character to push
@ -74,4 +73,33 @@ static inline char string_pop(t_string *buf)
return (c);
}
/// @brief Insert a string into self
/// @param self the string to insert into
/// @param pos the index to start inserting at
/// @param str the string to insert
/// @return Error in case pos was over the string length, self was equal to NULL
/// or str was equal to NULL
t_error string_insert(t_string *self, t_usize pos, t_str str);
/// @brief Insert a char into self
/// @param self the string to insert into
/// @param pos the index to start inserting at
/// @param str the character to insert
/// @return Error in case pos was over the string length, self was equal to NULL
/// or chr was '\0'
t_error string_insert_char(t_string *self, t_usize pos, char chr);
/// @brief Clear the string, keeping everything before `pos`
/// @param self the string to operate on
/// @param pos the position to start remove from
/// @return returns an Error if self is null or pos is after the string length
t_error string_clear_after(t_string *self, t_usize pos);
/// @brief Remove a single character from the string, putting it in `out`
/// @param self the string to operate on
/// @param pos the position to start remove
/// @param out[out] the place to put the removed character, if any. Can be NULL
/// @return returns an Error if self is null or pos is after the string length
t_error string_remove(t_string *self, t_usize pos, char *out);
#endif

3
stdme/src.list
View file

@ -106,3 +106,6 @@ str/str_split
str/str_substring
str/str_trim
string/mod
string/string_insert
string/string_remove
string/string_reserve

44
stdme/src/string/string_insert.c Normal file
View file

@ -0,0 +1,44 @@
/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* string_insert.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: maiboyer <maiboyer@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2024/07/08 21:32:17 by maiboyer #+# #+# */
/* Updated: 2024/07/08 22:25:52 by maiboyer ### ########.fr */
/* */
/* ************************************************************************** */
#include "me/mem/mem.h"
#include "me/str/str.h"
#include "me/string/string.h"
#include "me/types.h"
t_error string_insert(t_string *self, t_usize pos, t_str str)
{
t_usize len;
if (self == NULL || str == NULL || pos > self->len)
return (ERROR);
if (pos == self->len)
return (string_push(self, str));
len = str_len(str);
if (string_reserve(self, self->len + len))
return (ERROR);
mem_move(&self->buf[pos + len], &self->buf[pos], self->len - pos);
mem_copy(&self->buf[pos], str, len);
self->len += len;
self->buf[self->len] = '\0';
return (NO_ERROR);
}
t_error string_insert_char(t_string *self, t_usize pos, char chr)
{
char tmp[2];
if (chr == '\0')
return (ERROR);
tmp[0] = chr;
tmp[1] = '\0';
return (string_insert(self, pos, tmp));
}

41
stdme/src/string/string_remove.c Normal file
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@ -0,0 +1,41 @@
/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* string_remove.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: maiboyer <maiboyer@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2024/07/08 21:50:27 by maiboyer #+# #+# */
/* Updated: 2024/07/08 21:54:45 by maiboyer ### ########.fr */
/* */
/* ************************************************************************** */
#include "me/mem/mem.h"
#include "me/str/str.h"
#include "me/string/string.h"
#include "me/types.h"
t_error string_remove(t_string *self, t_usize pos, char *out)
{
char fake_out;
if (out == NULL)
out = &fake_out;
if (self == NULL || pos >= self->len)
return (ERROR);
*out = self->buf[pos];
mem_move(&self->buf[pos], &self->buf[pos] + 1, self->len - pos);
self->len--;
self->buf[self->len] = '\0';
return (NO_ERROR);
}
t_error string_clear_after(t_string *self, t_usize pos)
{
if (self == NULL || pos >= self->len)
return (ERROR);
mem_set_zero(&self->buf[pos], self->len - pos);
self->len = pos;
self->buf[self->len] = '\0';
return (NO_ERROR);
}

25
stdme/src/string/string_reserve.c Normal file
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* string_reserve.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: maiboyer <maiboyer@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2024/07/08 22:02:49 by maiboyer #+# #+# */
/* Updated: 2024/07/08 22:04:49 by maiboyer ### ########.fr */
/* */
/* ************************************************************************** */
#include "me/mem/mem.h"
#include "me/string/string.h"
#include "me/types.h"
t_error string_reserve(t_string *self, t_usize capacity)
{
if (self == NULL)
return (ERROR);
if (self->capacity >= capacity)
return (NO_ERROR);
self->buf = mem_realloc(self->buf, capacity);
return (NO_ERROR);
}