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Implement the bracketed paste mode

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As an alternative method of paste detection, more reliable but might not be
supported by all the VTs.
This commit is contained in:
LemonBoy 2015-09-08 00:40:25 +02:00 • committed by dequis
commit 72ac27e5a0
1 changed files with 41 additions and 1 deletions
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42
src/fe-text/gui-readline.c
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@ -37,6 +37,7 @@
#include "gui-windows.h" #include "gui-windows.h"
#include "utf8.h" #include "utf8.h"
#include <string.h>
#include <signal.h> #include <signal.h>
typedef void (*ENTRY_REDIRECT_KEY_FUNC) (int key, void *data, SERVER_REC *server, WI_ITEM_REC *item); typedef void (*ENTRY_REDIRECT_KEY_FUNC) (int key, void *data, SERVER_REC *server, WI_ITEM_REC *item);
@ -65,6 +66,13 @@ static char *paste_old_prompt;
static int paste_prompt, paste_line_count; static int paste_prompt, paste_line_count;
static int paste_join_multiline; static int paste_join_multiline;
static int paste_timeout_id; static int paste_timeout_id;
static int paste_bracketed_mode;
/* Terminal sequences that surround the input when the terminal has the
* bracketed paste mode active. Fror more details see
* https://cirw.in/blog/bracketed-paste */
static const unichar bp_start[] = { 0x1b, '[', '2', '0', '0', '~' };
static const unichar bp_end[] = { 0x1b, '[', '2', '0', '1', '~' };
static void sig_input(void); static void sig_input(void);
@ -647,12 +655,43 @@ static void sig_input(void)
unichar key; unichar key;
term_gets(buffer, &line_count); term_gets(buffer, &line_count);
key = g_array_index(buffer, unichar, 0); key = g_array_index(buffer, unichar, 0);
/* Either Ctrl-k or Ctrl-c is pressed */
if (key == 11 || key == 3) if (key == 11 || key == 3)
paste_flush(key == 11); paste_flush(key == 11);
g_array_free(buffer, TRUE); g_array_free(buffer, TRUE);
} else { } else {
term_gets(paste_buffer, &paste_line_count); term_gets(paste_buffer, &paste_line_count);
if (paste_detect_time > 0 && paste_buffer->len >= 3) {
/* use the bracketed paste mode to detect when the user has
* pasted some text into the field. */
if (paste_buffer->len > 12) {
/* try to find the start/end sequence */
int seq_start = memmem(paste_buffer->data,
paste_buffer->len * g_array_get_element_size(paste_buffer),
bp_start, sizeof(bp_start)) != NULL,
seq_end = memmem(paste_buffer->data,
paste_buffer->len * g_array_get_element_size(paste_buffer),
bp_end, sizeof(bp_end)) != NULL;
g_warning("found sequences : start %d end %d", seq_start, seq_end);
if (seq_start) {
paste_bracketed_mode = TRUE;
/* remove the leading sequence chars */
memmove(paste_buffer->data, paste_buffer->data + sizeof(bp_start),
paste_buffer->len * g_array_get_element_size(paste_buffer) - sizeof(bp_start));
g_array_set_size(paste_buffer, paste_buffer->len - 6);
}
if (seq_end) {
paste_bracketed_mode = FALSE;
/* remove the trailing sequence chars */
g_array_set_size(paste_buffer, paste_buffer->len - 6);
/* decide what to do with the buffer */
paste_timeout(NULL);
}
}
else if (paste_detect_time > 0 && paste_buffer->len >= 3) {
if (paste_timeout_id != -1) if (paste_timeout_id != -1)
g_source_remove(paste_timeout_id); g_source_remove(paste_timeout_id);
paste_timeout_id = g_timeout_add(paste_detect_time, paste_timeout, NULL); paste_timeout_id = g_timeout_add(paste_detect_time, paste_timeout, NULL);
@ -945,6 +984,7 @@ void gui_readline_init(void)
paste_buffer = g_array_new(FALSE, FALSE, sizeof(unichar)); paste_buffer = g_array_new(FALSE, FALSE, sizeof(unichar));
paste_old_prompt = NULL; paste_old_prompt = NULL;
paste_timeout_id = -1; paste_timeout_id = -1;
paste_bracketed_mode = FALSE;
g_get_current_time(&last_keypress); g_get_current_time(&last_keypress);
input_listen_init(STDIN_FILENO); input_listen_init(STDIN_FILENO);