fix(pydoclint): escape special characters in file path (#311)

* fix(pydoclint): escape special characters in file path

* fixup! fix(pydoclint): escape special characters in file path

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

---------

Co-authored-by: Zephyr Lykos <[email protected]>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

Author: 3 people

lua/null-ls/builtins/diagnostics/pydoclint.lua

@@ -1,5 +1,6 @@
 local h = require("null-ls.helpers")
 local methods = require("null-ls.methods")
+local u = require("null-ls.utils")
 
 local DIAGNOSTICS = methods.internal.DIAGNOSTICS
 
@@ -26,7 +27,7 @@ return h.make_builtin({
         end,
         multiple_files = false,
         on_output = function(line, params)
-            local path = params.temp_path
+            local path = u.escape(params.temp_path)
             -- rel/path/to/file.py:42: DOC000: Diagnostic message
             local pattern = path .. [[:(%d+): (DOC%d+: .*)]]
             return h.diagnostics.from_pattern(pattern, { "row", "message" })(line, params)

lua/null-ls/utils/init.lua

@@ -381,4 +381,27 @@ M.validate = function(validators)
     end
 end
 
+--- Make a string literal to match in lua pattern
+---@param literal string
+---@return string
+M.escape = function(literal)
+    local matches = {
+        ["^"] = "%^",
+        ["$"] = "%$",
+        ["("] = "%(",
+        [")"] = "%)",
+        ["%"] = "%%",
+        ["."] = "%.",
+        ["["] = "%[",
+        ["]"] = "%]",
+        ["*"] = "%*",
+        ["+"] = "%+",
+        ["-"] = "%-",
+        ["?"] = "%?",
+        ["\0"] = "%z",
+    }
+
+    return (literal:gsub(".", matches))
+end
+
 return M