From af946046b922dc5d5285a70a23d11916d8389a5d Mon Sep 17 00:00:00 2001
From: "Justin M. Keyes" <justinkz@gmail.com>
Date: Tue, 3 Sep 2019 22:51:45 +0200
Subject: test: Rename meth_pcall to pcall_err

- Rename `meth_pcall`.
- Make `pcall_err` raise an error if the function does not fail.
- Add `vim.pesc()` to treat a string as literal where a Lua pattern is
  expected.
---
 runtime/lua/vim/shared.lua | 11 +++++++++++
 1 file changed, 11 insertions(+)

(limited to 'runtime/lua/vim/shared.lua')

diff --git a/runtime/lua/vim/shared.lua b/runtime/lua/vim/shared.lua
index 75d4a6eee6..cd6f8a04d8 100644
--- a/runtime/lua/vim/shared.lua
+++ b/runtime/lua/vim/shared.lua
@@ -178,9 +178,20 @@ local function trim(s)
   return s:match('^%s*(.*%S)') or ''
 end
 
+--- Escapes magic chars in a Lua pattern string.
+---
+--@see https://github.com/rxi/lume
+--@param s  String to escape
+--@returns  %-escaped pattern string
+local function pesc(s)
+  assert(type(s) == 'string')
+  return s:gsub('[%(%)%.%%%+%-%*%?%[%]%^%$]', '%%%1')
+end
+
 local module = {
   deepcopy = deepcopy,
   gsplit = gsplit,
+  pesc = pesc,
   split = split,
   tbl_contains = tbl_contains,
   tbl_extend = tbl_extend,
-- 
cgit