size_t input_enqueue(String keys)
{
char *ptr = keys.data;
char *end = ptr + keys.size;
while (rbuffer_space(input_buffer) >= 6 && ptr < end) {
uint8_t buf[6] = { 0 };
unsigned int new_size
= trans_special((const uint8_t **)&ptr, (size_t)(end - ptr), buf, true,
true);
if (new_size) {
new_size = handle_mouse_event(&ptr, buf, new_size);
rbuffer_write(input_buffer, (char *)buf, new_size);
continue;
}
if (*ptr == '<') {
char *old_ptr = ptr;
// Invalid or incomplete key sequence, skip until the next '>' or *end.
do {
ptr++;
} while (ptr < end && *ptr != '>');
if (*ptr != '>') {
// Incomplete key sequence, return without consuming.
ptr = old_ptr;
break;
}
ptr++;
continue;
}
// copy the character, escaping CSI and K_SPECIAL
if ((uint8_t)*ptr == CSI) {
rbuffer_write(input_buffer, (char *)&(uint8_t){K_SPECIAL}, 1);
rbuffer_write(input_buffer, (char *)&(uint8_t){KS_EXTRA}, 1);
rbuffer_write(input_buffer, (char *)&(uint8_t){KE_CSI}, 1);
} else if ((uint8_t)*ptr == K_SPECIAL) {
rbuffer_write(input_buffer, (char *)&(uint8_t){K_SPECIAL}, 1);
rbuffer_write(input_buffer, (char *)&(uint8_t){KS_SPECIAL}, 1);
rbuffer_write(input_buffer, (char *)&(uint8_t){KE_FILLER}, 1);
} else {
rbuffer_write(input_buffer, ptr, 1);
}
ptr++;
}
size_t rv = (size_t)(ptr - keys.data);
process_interrupts();
return rv;
}
static int replace_termcodes(char **to, char *from)
{
int len = strlen(from);
char buf[len];
int i = 0;
while (*from) {
buf[i] = trans_special(&from);
i++;
from++;
}
*to = malloc((i)*sizeof(char*));
strncpy(*to, buf, i);
return i;
}
// Replace any terminal code strings in from[] with the equivalent internal
// vim representation. This is used for the "from" and "to" part of a
// mapping, and the "to" part of a menu command.
// Any strings like "<C-UP>" are also replaced, unless 'cpoptions' contains
// '<'.
// K_SPECIAL by itself is replaced by K_SPECIAL KS_SPECIAL KE_FILLER.
//
// The replacement is done in result[] and finally copied into allocated
// memory. If this all works well *bufp is set to the allocated memory and a
// pointer to it is returned. If something fails *bufp is set to NULL and from
// is returned.
//
// CTRL-V characters are removed. When "from_part" is TRUE, a trailing CTRL-V
// is included, otherwise it is removed (for ":map xx ^V", maps xx to
// nothing). When 'cpoptions' does not contain 'B', a backslash can be used
// instead of a CTRL-V.
char_u * replace_termcodes (
char_u *from,
char_u **bufp,
int from_part,
int do_lt, // also translate <lt>
int special // always accept <key> notation
)
{
ssize_t i;
size_t slen;
char_u key;
size_t dlen = 0;
char_u *src;
int do_backslash; // backslash is a special character
int do_special; // recognize <> key codes
char_u *result; // buffer for resulting string
do_backslash = (vim_strchr(p_cpo, CPO_BSLASH) == NULL);
do_special = (vim_strchr(p_cpo, CPO_SPECI) == NULL) || special;
// Allocate space for the translation. Worst case a single character is
// replaced by 6 bytes (shifted special key), plus a NUL at the end.
result = xmalloc(STRLEN(from) * 6 + 1);
src = from;
// Check for #n at start only: function key n
if (from_part && src[0] == '#' && VIM_ISDIGIT(src[1])) { // function key
result[dlen++] = K_SPECIAL;
result[dlen++] = 'k';
if (src[1] == '0') {
result[dlen++] = ';'; // #0 is F10 is "k;"
} else {
result[dlen++] = src[1]; // #3 is F3 is "k3"
}
src += 2;
}
// Copy each byte from *from to result[dlen]
while (*src != NUL) {
// If 'cpoptions' does not contain '<', check for special key codes,
// like "<C-S-LeftMouse>"
if (do_special && (do_lt || STRNCMP(src, "<lt>", 4) != 0)) {
// Replace <SID> by K_SNR <script-nr> _.
// (room: 5 * 6 = 30 bytes; needed: 3 + <nr> + 1 <= 14)
if (STRNICMP(src, "<SID>", 5) == 0) {
if (current_SID <= 0) {
EMSG(_(e_usingsid));
} else {
src += 5;
result[dlen++] = K_SPECIAL;
result[dlen++] = (int)KS_EXTRA;
result[dlen++] = (int)KE_SNR;
sprintf((char *)result + dlen, "%" PRId64, (int64_t)current_SID);
dlen += STRLEN(result + dlen);
result[dlen++] = '_';
continue;
}
}
slen = trans_special(&src, result + dlen, TRUE);
if (slen) {
dlen += slen;
continue;
}
}
if (do_special) {
char_u *p, *s, len;
// Replace <Leader> by the value of "mapleader".
// Replace <LocalLeader> by the value of "maplocalleader".
// If "mapleader" or "maplocalleader" isn't set use a backslash.
if (STRNICMP(src, "<Leader>", 8) == 0) {
len = 8;
p = get_var_value((char_u *)"g:mapleader");
} else if (STRNICMP(src, "<LocalLeader>", 13) == 0) {
len = 13;
p = get_var_value((char_u *)"g:maplocalleader");
} else {
len = 0;
p = NULL;
}
if (len != 0) {
// Allow up to 8 * 6 characters for "mapleader".
if (p == NULL || *p == NUL || STRLEN(p) > 8 * 6) {
s = (char_u *)"\\";
} else {
s = p;
}
while (*s != NUL) {
result[dlen++] = *s++;
}
src += len;
continue;
}
}
// Remove CTRL-V and ignore the next character.
// For "from" side the CTRL-V at the end is included, for the "to"
// part it is removed.
// If 'cpoptions' does not contain 'B', also accept a backslash.
key = *src;
if (key == Ctrl_V || (do_backslash && key == '\\')) {
++src; // skip CTRL-V or backslash
if (*src == NUL) {
if (from_part) {
result[dlen++] = key;
}
break;
}
}
// skip multibyte char correctly
for (i = (*mb_ptr2len)(src); i > 0; --i) {
// If the character is K_SPECIAL, replace it with K_SPECIAL
// KS_SPECIAL KE_FILLER.
// If compiled with the GUI replace CSI with K_CSI.
if (*src == K_SPECIAL) {
result[dlen++] = K_SPECIAL;
result[dlen++] = KS_SPECIAL;
result[dlen++] = KE_FILLER;
} else {
result[dlen++] = *src;
}
++src;
}
}
result[dlen] = NUL;
*bufp = xrealloc(result, dlen + 1);
return *bufp;
}
