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-rwxr-xr-xscripts/vim-patch.sh51
-rw-r--r--src/nvim/ex_cmds.c39
-rw-r--r--src/nvim/testdir/test_alot.vim3
-rw-r--r--src/nvim/testdir/test_ex_z.vim78
4 files changed, 129 insertions, 42 deletions
diff --git a/scripts/vim-patch.sh b/scripts/vim-patch.sh
index 5182756d83..95293f9572 100755
--- a/scripts/vim-patch.sh
+++ b/scripts/vim-patch.sh
@@ -37,11 +37,11 @@ usage() {
}
msg_ok() {
- printf "\e[32m✔\e[0m $@\n"
+ printf '\e[32m✔\e[0m %s\n' "$@"
}
msg_err() {
- printf "\e[31m✘\e[0m $@\n"
+ printf '\e[31m✘\e[0m %s\n' "$@"
}
# Checks if a program is in the user's PATH, and is executable.
@@ -218,7 +218,7 @@ stage_patch() {
msg_ok "Current branch '${checked_out_branch}' seems to be a vim-patch"
echo " branch; not creating a new branch."
else
- printf "\nFetching '${git_remote}/master'.\n"
+ printf '\nFetching "%s/master".\n' "${git_remote}"
output="$(git fetch "${git_remote}" master 2>&1)" &&
msg_ok "${output}" ||
(msg_err "${output}"; false)
@@ -248,21 +248,22 @@ stage_patch() {
fi
printf "\nInstructions:\n Proceed to port the patch.\n"
else
- printf "\nInstructions:\n Proceed to port the patch.\n Try the 'patch' command (or use '${BASENAME} -P ...' next time):\n patch -p1 < ${patch_file}\n"
+ printf '\nInstructions:\n Proceed to port the patch.\n Try the "patch" command (or use "%s -P ..." next time):\n patch -p1 < %s\n' "${BASENAME}" "${patch_file}"
fi
- printf "
- Stage your changes ('git add ...'), then use 'git commit --amend' to commit.
+ printf '
+ Stage your changes ("git add ..."), then use "git commit --amend" to commit.
- To port more patches (if any) related to ${vim_version},
- run '${BASENAME}' again.
+ To port more patches (if any) related to %s,
+ run "%s" again.
* Do this only for _related_ patches (otherwise it increases the
size of the pull request, making it harder to review)
- When you're done, try '${BASENAME} -s' to create the pull request.
+ When you are done, try "%s -s" to create the pull request.
See the wiki for more information:
- * https://github.com/neovim/neovim/wiki/Merging-patches-from-upstream-vim\n"
+ * https://github.com/neovim/neovim/wiki/Merging-patches-from-upstream-vim
+' "${vim_version}" "${BASENAME}" "${BASENAME}"
}
hub_pr() {
@@ -398,24 +399,24 @@ show_vimpatches() {
list_missing_vimpatches | while read vim_commit; do
if (cd "${VIM_SOURCE_DIR}" && git --no-pager show --color=never --name-only "v${vim_commit}" 2>/dev/null) | grep -q ^runtime; then
- printf " • ${vim_commit} (+runtime)\n"
+ printf ' • %s (+runtime)\n' "${vim_commit}"
else
- printf " • ${vim_commit}\n"
+ printf ' • %s\n' "${vim_commit}"
fi
done
- echo
- echo "Instructions:"
- echo
- echo " To port one of the above patches to Neovim, execute"
- echo " this script with the patch revision as argument and"
- echo " follow the instructions."
- echo
- echo " Examples: '${BASENAME} -p 7.4.487'"
- echo " '${BASENAME} -p 1e8ebf870720e7b671f98f22d653009826304c4f'"
- echo
- echo " NOTE: Please port the _oldest_ patch if you possibly can."
- echo " Out-of-order patches increase the possibility of bugs."
+ printf "Instructions:
+
+ To port one of the above patches to Neovim, execute
+ this script with the patch revision as argument and
+ follow the instructions.
+
+ Examples: '%s -p 7.4.487'
+ '%s -p 1e8ebf870720e7b671f98f22d653009826304c4f'
+
+ NOTE: Please port the _oldest_ patch if you possibly can.
+ Out-of-order patches increase the possibility of bugs.
+" "${BASENAME}" "${BASENAME}"
}
review_commit() {
@@ -436,7 +437,7 @@ review_commit() {
echo " This script assumes that the PR contains only commits"
echo " with 'vim-patch:XXX' in their title."
echo
- printf -- "$(head -n 4 <<< "${nvim_patch}")\n\n"
+ printf -- '%s\n\n' "$(head -n 4 <<< "${nvim_patch}")"
local reply
read -p "Continue reviewing (y/N)? " -n 1 -r reply
if [[ "${reply}" == y ]]; then
diff --git a/src/nvim/ex_cmds.c b/src/nvim/ex_cmds.c
index 98eda8dcb8..d58d006dd0 100644
--- a/src/nvim/ex_cmds.c
+++ b/src/nvim/ex_cmds.c
@@ -1306,10 +1306,10 @@ filterend:
* Call a shell to execute a command.
* When "cmd" is NULL start an interactive shell.
*/
-void
-do_shell (
+void
+do_shell(
char_u *cmd,
- int flags /* may be SHELL_DOOUT when output is redirected */
+ int flags // may be SHELL_DOOUT when output is redirected
)
{
int save_nwr;
@@ -1789,14 +1789,14 @@ theend:
* May set eap->forceit if a dialog says it's OK to overwrite.
* Return OK if it's OK, FAIL if it is not.
*/
-int
-check_overwrite (
+int
+check_overwrite(
exarg_T *eap,
buf_T *buf,
- char_u *fname, /* file name to be used (can differ from
- buf->ffname) */
- char_u *ffname, /* full path version of fname */
- int other /* writing under other name */
+ char_u *fname, // file name to be used (can differ from
+ // buf->ffname)
+ char_u *ffname, // full path version of fname
+ int other // writing under other name
)
{
/*
@@ -2823,7 +2823,7 @@ void ex_change(exarg_T *eap)
void ex_z(exarg_T *eap)
{
char_u *x;
- int bigness;
+ int64_t bigness;
char_u *kind;
int minus = 0;
linenr_T start, end, curs, i;
@@ -2856,10 +2856,17 @@ void ex_z(exarg_T *eap)
EMSG(_("E144: non-numeric argument to :z"));
return;
}
- bigness = atoi((char *)x);
+ bigness = atol((char *)x);
+
+ // bigness could be < 0 if atol(x) overflows.
+ if (bigness > 2 * curbuf->b_ml.ml_line_count || bigness < 0) {
+ bigness = 2 * curbuf->b_ml.ml_line_count;
+ }
+
p_window = bigness;
- if (*kind == '=')
+ if (*kind == '=') {
bigness += 2;
+ }
}
/* the number of '-' and '+' multiplies the distance */
@@ -4587,11 +4594,11 @@ char_u *check_help_lang(char_u *arg)
* Assumption is made that the matched_string passed has already been found to
* match some string for which help is requested. webb.
*/
-int
-help_heuristic (
+int
+help_heuristic(
char_u *matched_string,
- int offset, /* offset for match */
- int wrong_case /* no matching case */
+ int offset, // offset for match
+ int wrong_case // no matching case
)
{
int num_letters;
diff --git a/src/nvim/testdir/test_alot.vim b/src/nvim/testdir/test_alot.vim
index c4b4a43ad4..71f3ad1bc0 100644
--- a/src/nvim/testdir/test_alot.vim
+++ b/src/nvim/testdir/test_alot.vim
@@ -5,6 +5,7 @@ source test_assign.vim
source test_changedtick.vim
source test_cursor_func.vim
source test_ex_undo.vim
+source test_ex_z.vim
source test_execute_func.vim
source test_expr.vim
source test_feedkeys.vim
@@ -19,8 +20,8 @@ source test_jumps.vim
source test_fileformat.vim
source test_filetype.vim
source test_lambda.vim
-source test_menu.vim
source test_mapping.vim
+source test_menu.vim
source test_messages.vim
source test_partial.vim
source test_popup.vim
diff --git a/src/nvim/testdir/test_ex_z.vim b/src/nvim/testdir/test_ex_z.vim
new file mode 100644
index 0000000000..608a36c490
--- /dev/null
+++ b/src/nvim/testdir/test_ex_z.vim
@@ -0,0 +1,78 @@
+" Test :z
+
+func Test_z()
+ call setline(1, range(1, 100))
+
+ let a = execute('20z3')
+ call assert_equal("\n20\n21\n22", a)
+ call assert_equal(22, line('.'))
+ " 'window' should be set to the {count} value.
+ call assert_equal(3, &window)
+
+ " If there is only one window, then twice the amount of 'scroll' is used.
+ set scroll=2
+ let a = execute('20z')
+ call assert_equal("\n20\n21\n22\n23", a)
+ call assert_equal(23, line('.'))
+
+ let a = execute('20z+3')
+ " FIXME: I would expect the same result as '20z3' but it
+ " gives "\n21\n22\n23" instead. Bug in Vim or in ":help :z"?
+ "call assert_equal("\n20\n21\n22", a)
+ "call assert_equal(22, line('.'))
+
+ let a = execute('20z-3')
+ call assert_equal("\n18\n19\n20", a)
+ call assert_equal(20, line('.'))
+
+ let a = execute('20z=3')
+ call assert_match("^\n18\n19\n-\\+\n20\n-\\+\n21\n22$", a)
+ call assert_equal(20, line('.'))
+
+ let a = execute('20z^3')
+ call assert_equal("\n14\n15\n16\n17", a)
+ call assert_equal(17, line('.'))
+
+ let a = execute('20z.3')
+ call assert_equal("\n19\n20\n21", a)
+ call assert_equal(21, line('.'))
+
+ let a = execute('20z#3')
+ call assert_equal("\n 20 20\n 21 21\n 22 22", a)
+ call assert_equal(22, line('.'))
+
+ let a = execute('20z#-3')
+ call assert_equal("\n 18 18\n 19 19\n 20 20", a)
+ call assert_equal(20, line('.'))
+
+ let a = execute('20z#=3')
+ call assert_match("^\n 18 18\n 19 19\n-\\+\n 20 20\n-\\+\n 21 21\n 22 22$", a)
+ call assert_equal(20, line('.'))
+
+ " Test with {count} bigger than the number of lines in buffer.
+ let a = execute('20z1000')
+ call assert_match("^\n20\n21\n.*\n99\n100$", a)
+ call assert_equal(100, line('.'))
+
+ let a = execute('20z-1000')
+ call assert_match("^\n1\n2\n.*\n19\n20$", a)
+ call assert_equal(20, line('.'))
+
+ let a = execute('20z=1000')
+ call assert_match("^\n1\n.*\n-\\+\n20\n-\\\+\n.*\n100$", a)
+ call assert_equal(20, line('.'))
+
+ call assert_fails('20z=a', 'E144:')
+
+ set window& scroll&
+ bw!
+endfunc
+
+func Test_z_bug()
+ " This used to access invalid memory as a result of an integer overflow
+ " and freeze vim.
+ normal ox
+ normal Heat
+ z777777776666666
+ ')
+endfunc