feat(files): support paths with CRLF (closes #2367)

Note that due to grep/rg limitations this doesn't work with grep.

Use `render_crlf` option:
```lua
:FzfLua files render_crlf=true
-- Or with lua
:lua FzfLua.live_grep({ render_crlf = true })
```

Author: ibhagwan

lua/fzf-lua/config.lua

@@ -711,6 +711,21 @@ function M.normalize_opts(opts, globals, __resume_key)
     opts.multiline = nil
   end
 
+  -- Support filenames with CRLF (#2367), idea borrowed from fzf v0.39 changelog:
+  -- carriage return and a line feed characters will be rendered as dim ␍ and ␊ respectively
+  if opts.render_crlf then
+    opts.fzf_opts["--read0"] = true
+    if opts.fd_opts then
+      -- adding "-0" to fd prepends entries with "./", since we cannot guarantee fd v8.3
+      -- we remove the prefix in `make_entry.file` (instead of adding "--strip-cwd-prefix")
+      opts.strip_cwd_prefix = true
+      opts.fd_opts = "-0 " .. opts.fd_opts
+    end
+    if opts.rg_opts then opts.rg_opts = "-0 " .. opts.rg_opts end
+    if opts.grep_opts then opts.grep_opts = "-Z " .. opts.grep_opts end
+    if opts.find_opts then opts.find_opts = "-print0 " .. opts.find_opts end
+  end
+
   do
     -- Remove incompatible flags / values
     --   (1) `true` flags are removed entirely (regardless of value)
@@ -908,6 +923,7 @@ function M.normalize_opts(opts, globals, __resume_key)
         or opts.file_icons
         or opts.file_ignore_patterns
         or opts.strip_cwd_prefix
+        or opts.render_crlf
         or opts.path_shorten
         or opts.formatter
         or opts.multiline

lua/fzf-lua/libuv.lua

@@ -47,14 +47,24 @@ end
 
 ---@param opts {cwd: string, cmd: string|table, env: table?, cb_finish: function,
 ---cb_write: function?, cb_write_lines: function?, cb_err: function, cb_pid: function,
----fn_transform: function?, EOL: string?, process1: boolean?, profiler: boolean?,
----use_queue: boolean?}
+---fn_transform: function?, EOL: string?, EOL_data: string?, process1: boolean?,
+---profiler: boolean?, use_queue: boolean?}
 ---@param fn_transform function?
 ---@param fn_done function?
 ---@return uv.uv_process_t proc
 ---@return integer         pid
 M.spawn = function(opts, fn_transform, fn_done)
   local EOL = opts.EOL or "\n"
+  local EOL_data = type(opts.cmd) == "string"
+      -- fd -0|--print0
+      -- rg -0|--null
+      -- grep -Z|--null
+      -- find . -print0
+      and (opts.cmd:match("%s%-0")
+        or opts.cmd:match("%s%-?%-print0")  -- -print0|--print0
+        or opts.cmd:match("%s%-%-null")
+        or opts.cmd:match("%s%-Z"))
+      and "\0" or "\n"
   local output_pipe = assert(uv.new_pipe(false))
   local error_pipe = assert(uv.new_pipe(false))
   local write_cb_count, read_cb_count = 0, 0
@@ -176,7 +186,7 @@ M.spawn = function(opts, fn_transform, fn_done)
     local ret = {}
     local start_idx = 1
     repeat
-      local nl_idx = data:find("\n", start_idx, true)
+      local nl_idx = data:find(EOL_data, start_idx, true)
       if nl_idx then
         local cr = data:byte(nl_idx - 1, nl_idx - 1) == 13 -- \r
         local line = data:sub(start_idx, nl_idx - (cr and 2 or 1))
@@ -378,8 +388,6 @@ end
 ---@param opts table
 ---@return uv.uv_process_t, integer
 M.spawn_stdio = function(opts)
-  local EOL = opts.multiline and "\0" or "\n"
-
   -- stdin/stdout are already buffered, not stderr. This means
   -- that every character is flushed immediately which caused
   -- rendering issues on Mac (#316, #287) and Linux (#414)
@@ -397,6 +405,9 @@ M.spawn_stdio = function(opts)
   -- setup global vars
   for k, v in pairs(opts.g or {}) do _G[k] = v end
 
+  ---@diagnostic disable-next-line: undefined-field
+  local EOL = _G._EOL or opts.multiline and "\0" or "\n"
+
   -- Requiring make_entry will create the pseudo `_G.FzfLua` global
   -- Must be called after global vars are created or devicons will
   -- err with "fzf-lua fatal: '_G._fzf_lua_server', '_G._devicons_path' both nil"

lua/fzf-lua/make_entry.lua

@@ -577,6 +577,9 @@ M.file = function(x, opts)
   if opts.strip_cwd_prefix then
     filepath = path.strip_cwd_prefix(filepath)
   end
+  if opts.render_crlf then
+    filepath = path.render_crlf(filepath)
+  end
   -- make path relative
   if opts.cwd and #opts.cwd > 0 then
     filepath = path.relative_to(filepath, opts.cwd)

lua/fzf-lua/path.lua

@@ -96,6 +96,12 @@ M.strip_cwd_prefix = function(path)
   end
 end
 
+---@param path string
+---@return string
+M.render_crlf = function(path)
+  return (path:gsub("\n", "␊"):gsub("\r", "␍"))
+end
+
 ---Get the basename|tail of the given path.
 ---@param path string
 ---@return string
@@ -426,6 +432,9 @@ function M.entry_to_file(entry, opts, force_uri)
   end
   -- Remove ANSI coloring and prefixed icons
   entry = utils.strip_ansi_coloring(entry)
+  if opts.render_crlf then
+    entry = entry:gsub("␊", "\n"):gsub("␍", "\r")
+  end
   local stripped, idx = (function()
     -- Returns the first viable path:line?:col? + rest of line
     -- stripping until the last occurrence of utils.nbsp may err

lua/fzf-lua/providers/grep.lua

@@ -169,6 +169,7 @@ M.live_grep_native = function(opts)
     file_icons = false,
     file_ignore_patterns = false,
     strip_cwd_prefix = false,
+    render_crlf = false,
     path_shorten = false,
     formatter = false,
     multiline = false,

lua/fzf-lua/shell.lua

@@ -214,6 +214,7 @@ M.stringify_mt = function(contents, opts)
       "color_icons",
       "path_shorten",
       "strip_cwd_prefix",
+      "render_crlf",
       "exec_empty_query",
       "file_ignore_patterns",
       "rg_glob",