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vim-patch:8.2.4858: K_SPECIAL may be escaped twice

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Problem:    K_SPECIAL may be escaped twice.
Solution:   Avoid double escaping. (closes vim/vim#10340)
db08887f24
This commit is contained in:
zeertzjq
2022-05-03 06:11:22 +08:00
parent ddf7bb24f9
commit 27149e0071
8 changed files with 69 additions and 20 deletions
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9
src/nvim/eval.c
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@@ -4869,11 +4869,10 @@ static int get_string_tv(char_u **arg, typval_T *rettv, int evaluate)
if (*p == '\\' && p[1] != NUL) {
p++;
// A "\<x>" form occupies at least 4 characters, and produces up
// to 21 characters (3 * 6 for the char and 3 for a modifier):
// reserve space for 18 extra.
// Each byte in the char could be encoded as K_SPECIAL K_EXTRA x.
// to 9 characters (6 for the char and 3 for a modifier):
// reserve space for 5 extra.
if (*p == '<') {
extra += 18;
extra += 5;
}
}
}
@@ -4971,7 +4970,7 @@ static int get_string_tv(char_u **arg, typval_T *rettv, int evaluate)
if (p[1] != '*') {
flags |= FSK_SIMPLIFY;
}
extra = trans_special((const char_u **)&p, STRLEN(p), name, flags, NULL);
extra = trans_special((const char_u **)&p, STRLEN(p), name, flags, false, NULL);
if (extra != 0) {
name += extra;
if (name >= rettv->vval.v_string + len) {