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-rw-r--r--runtime/doc/api.txt8
-rw-r--r--src/nvim/api/autocmd.c9
2 files changed, 15 insertions, 2 deletions
diff --git a/runtime/doc/api.txt b/runtime/doc/api.txt
index b949f3016e..8928650a39 100644
--- a/runtime/doc/api.txt
+++ b/runtime/doc/api.txt
@@ -3267,6 +3267,12 @@ nvim_create_autocmd({event}, {*opts}) *nvim_create_autocmd()*
pattern = { "*.py", "*.pyi" }
<
+ Note: The `pattern` is passed to callbacks and commands as a literal string; environment
+ variables like `$HOME` and `~` are not automatically expanded as they are by |:autocmd|. Instead,
+ |expand()| such variables explicitly: >
+ pattern = vim.fn.expand("~") .. "/some/path/*.py"
+<
+
Example values for event: >
"BufWritePre"
{"CursorHold", "BufWritePre", "BufWritePost"}
@@ -3279,7 +3285,7 @@ nvim_create_autocmd({event}, {*opts}) *nvim_create_autocmd()*
• group (string|integer) optional: the autocommand group name
or id to match against.
• pattern (string|array) optional: pattern or patterns to
- match against |autocmd-pattern|.
+ match literally against |autocmd-pattern|.
• buffer (integer) optional: buffer number for buffer local
autocommands |autocmd-buflocal|. Cannot be used with
{pattern}.
diff --git a/src/nvim/api/autocmd.c b/src/nvim/api/autocmd.c
index b5c695b9ce..3dfe77ba38 100644
--- a/src/nvim/api/autocmd.c
+++ b/src/nvim/api/autocmd.c
@@ -401,6 +401,13 @@ cleanup:
/// pattern = { "*.py", "*.pyi" }
/// </pre>
///
+/// Note: The `pattern` is passed to callbacks and commands as a literal string; environment
+/// variables like `$HOME` and `~` are not automatically expanded as they are by |:autocmd|.
+/// Instead, |expand()| such variables explicitly:
+/// <pre>
+/// pattern = vim.fn.expand("~") .. "/some/path/*.py"
+/// </pre>
+///
/// Example values for event:
/// <pre>
/// "BufWritePre"
@@ -411,7 +418,7 @@ cleanup:
/// @param opts Dictionary of autocommand options:
/// - group (string|integer) optional: the autocommand group name or
/// id to match against.
-/// - pattern (string|array) optional: pattern or patterns to match
+/// - pattern (string|array) optional: pattern or patterns to match literally
/// against |autocmd-pattern|.
/// - buffer (integer) optional: buffer number for buffer local autocommands
/// |autocmd-buflocal|. Cannot be used with {pattern}.