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authorzeertzjq <zeertzjq@outlook.com>2022-08-22 12:02:45 +0800
committerGitHub <noreply@github.com>2022-08-22 12:02:45 +0800
commit4f6d0d6da971ee837864bf96aa28cc24c2d58b5a (patch)
treea835274cccbea2e69a7458a630770129d790b5e1 /src/nvim/eval.c
parentd5cc161deac2371a39821c94fd2de4f1c41b6eb9 (diff)
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vim-patch:8.2.2289: Vim9: 'cpo' can become empty (#19887)
Problem: Vim9: 'cpo' can become empty. Solution: Use empty_option instead of an empty string. Update quickfix buffer after restoring 'cpo'. (closes vim/vim#7608) https://github.com/vim/vim/commit/e5a2dc87fd9d63dfd0d9c379e363ee8b8c05b14c Omit test as it is Vim9 script.
Diffstat (limited to 'src/nvim/eval.c')
-rw-r--r--src/nvim/eval.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/src/nvim/eval.c b/src/nvim/eval.c
index cb46e26f82..a80d2e5fbb 100644
--- a/src/nvim/eval.c
+++ b/src/nvim/eval.c
@@ -2192,7 +2192,7 @@ int pattern_match(char *pat, char *text, bool ic)
// avoid 'l' flag in 'cpoptions'
char *save_cpo = p_cpo;
- p_cpo = "";
+ p_cpo = (char *)empty_option;
regmatch.regprog = vim_regcomp(pat, RE_MAGIC + RE_STRING);
if (regmatch.regprog != NULL) {
regmatch.rm_ic = ic;
@@ -8389,6 +8389,11 @@ char *do_string_sub(char *str, char *pat, char *sub, typval_T *expr, char *flags
p_cpo = save_cpo;
} else {
// Darn, evaluating {sub} expression or {expr} changed the value.
+ // If it's still empty it was changed and restored, need to restore in
+ // the complicated way.
+ if (*p_cpo == NUL) {
+ set_option_value("cpo", 0L, save_cpo, 0);
+ }
free_string_option((char_u *)save_cpo);
}