chore: use plenary.strings and remove strings functions from utils (#690)

Co-authored-by: Simon Hauser <Simon-Hauser@outlook.de>

lua/telescope/builtin/git.lua

@@ -6,6 +6,7 @@ local pickers = require('telescope.pickers')
 local previewers = require('telescope.previewers')
 local utils = require('telescope.utils')
 local entry_display = require('telescope.pickers.entry_display')
+local strings = require('plenary.strings')
 
 local conf = require('telescope.config').values
 
@@ -138,7 +139,7 @@ git.branches = function(opts)
 
     entry.name = string.sub(entry.refname, string.len(prefix)+1)
     for key, value in pairs(widths) do
-      widths[key] = math.max(value, utils.strdisplaywidth(entry[key] or ''))
+      widths[key] = math.max(value, strings.strdisplaywidth(entry[key] or ''))
     end
     if string.len(entry.upstream) > 0 then
       widths.upstream_indicator = 2

lua/telescope/builtin/lsp.lua

@@ -5,6 +5,7 @@ local make_entry = require('telescope.make_entry')
 local pickers = require('telescope.pickers')
 local entry_display = require('telescope.pickers.entry_display')
 local utils = require('telescope.utils')
+local strings = require('plenary.strings')
 local a = require('plenary.async_lib')
 local async, await = a.async, a.await
 local channel = a.util.channel
@@ -172,7 +173,7 @@ lsp.code_actions = function(opts)
         }
 
         for key, value in pairs(widths) do
-          widths[key] = math.max(value, utils.strdisplaywidth(entry[key]))
+          widths[key] = math.max(value, strings.strdisplaywidth(entry[key]))
         end
 
         table.insert(results, entry)

lua/telescope/config.lua

@@ -1,3 +1,5 @@
+local strings = require('plenary.strings')
+
 -- Keep the values around between reloads
 _TelescopeConfigurationValues = _TelescopeConfigurationValues or {}
 _TelescopeConfigurationPickers = _TelescopeConfigurationPickers or {}
@@ -13,30 +15,6 @@ local function first_non_null(...)
   end
 end
 
-local dedent = function(str, leave_indent)
-  -- find minimum common indent across lines
-  local indent = nil
-  for line in str:gmatch('[^\n]+') do
-    local line_indent = line:match('^%s+') or ''
-    if indent == nil or #line_indent < #indent then
-      indent = line_indent
-    end
-  end
-  if indent == nil or #indent == 0 then
-    -- no minimum common indent
-    return str
-  end
-  local left_indent = (' '):rep(leave_indent or 0)
-  -- create a pattern for the indent
-  indent = indent:gsub('%s', '[ \t]')
-  -- strip it from the first line
-  str = str:gsub('^'..indent, left_indent)
-  -- strip it from the remaining lines
-  str = str:gsub('[\n]'..indent, '\n' .. left_indent)
-  return str
-end
-
-
 local sorters = require('telescope.sorters')
 
 -- TODO: Add other major configuration points here.
@@ -69,7 +47,7 @@ function config.set_defaults(defaults)
 
     config.values[name] = get(name, default_val)
     if description then
-      config.descriptions[name] = dedent(description)
+      config.descriptions[name] = strings.dedent(description)
     end
   end
 

lua/telescope/make_entry.lua

@@ -1,6 +1,7 @@
 local entry_display = require('telescope.pickers.entry_display')
 local path = require('telescope.path')
 local utils = require('telescope.utils')
+local strings = require('plenary.strings')
 
 local Path = require('plenary.path')
 
@@ -444,7 +445,7 @@ function make_entry.gen_from_buffer(opts)
   local icon_width = 0
   if not disable_devicons then
     local icon, _ = utils.get_devicons('fname', disable_devicons)
-    icon_width = utils.strdisplaywidth(icon)
+    icon_width = strings.strdisplaywidth(icon)
   end
 
   local displayer = entry_display.create {

lua/telescope/pickers/entry_display.lua

@@ -1,28 +1,7 @@
-local utils = require('telescope.utils')
+local strings = require('plenary.strings')
 
 local entry_display = {}
-
-entry_display.truncate = function(str, len)
-  str = tostring(str) -- We need to make sure its an actually a string and not a number
-  if utils.strdisplaywidth(str) <= len then
-    return str
-  end
-  local charlen = 0
-  local cur_len = 0
-  local result = ''
-  local len_of_dots = utils.strdisplaywidth('…')
-  while true do
-    local part = utils.strcharpart(str, charlen, 1)
-    cur_len = cur_len + utils.strdisplaywidth(part)
-    if (cur_len + len_of_dots) > len then
-      result = result .. '…'
-      break
-    end
-    result = result .. part
-    charlen = charlen + 1
-  end
-  return result
-end
+entry_display.truncate = strings.truncate
 
 entry_display.create = function(configuration)
   local generator = {}
@@ -31,9 +10,9 @@ entry_display.create = function(configuration)
       local justify = v.right_justify
       table.insert(generator, function(item)
         if type(item) == 'table' then
-          return utils.align_str(entry_display.truncate(item[1], v.width), v.width, justify), item[2]
+          return strings.align_str(entry_display.truncate(item[1], v.width), v.width, justify), item[2]
         else
-          return utils.align_str(entry_display.truncate(item, v.width), v.width, justify)
+          return strings.align_str(entry_display.truncate(item, v.width), v.width, justify)
         end
       end)
     else

lua/telescope/utils.lua

@@ -377,94 +377,20 @@ function utils.get_os_command_output(cmd, cwd)
   return stdout, ret, stderr
 end
 
-utils.strdisplaywidth = (function()
-  if jit and pathlib.separator ~= '\\' then
-    local ffi = require('ffi')
-    ffi.cdef[[
-      typedef unsigned char char_u;
-      int linetabsize_col(int startcol, char_u *s);
-    ]]
-
-    return function(str, col)
-      local startcol = col or 0
-      str = tostring(str)
-      local s = ffi.new('char[?]', #str + 1)
-      ffi.copy(s, str)
-      return ffi.C.linetabsize_col(startcol, s) - startcol
-    end
-  else
-    return function(str, col)
-      return #(tostring(str)) - (col or 0)
-    end
-  end
-end)()
-
-utils.utf_ptr2len = (function()
-  if jit and pathlib.separator ~= '\\' then
-    local ffi = require('ffi')
-    ffi.cdef[[
-      typedef unsigned char char_u;
-      int utf_ptr2len(const char_u *const p);
-    ]]
-
-    return function(str)
-      local c_str = ffi.new('char[?]', #str + 1)
-      ffi.copy(c_str, str)
-      return ffi.C.utf_ptr2len(c_str)
-    end
-  else
-    return function(str)
-      return str == '' and 0 or 1
-    end
-  end
-end)()
-
-function utils.strcharpart(str, nchar, charlen)
-  local nbyte = 0
-  if nchar > 0 then
-    while nchar > 0 and nbyte < #str do
-      nbyte = nbyte + utils.utf_ptr2len(str:sub(nbyte + 1))
-      nchar = nchar - 1
-    end
-  else
-    nbyte = nchar
-  end
-
-  local len = 0
-  if charlen then
-    while charlen > 0 and nbyte + len < #str do
-      local off = nbyte + len
-      if off < 0 then
-        len = len + 1
-      else
-        len = len + utils.utf_ptr2len(str:sub(off + 1))
-      end
-      charlen = charlen - 1
-    end
-  else
-    len = #str - nbyte
-  end
-
-  if nbyte < 0 then
-    len = len + nbyte
-    nbyte = 0
-  elseif nbyte > #str then
-    nbyte = #str
-  end
-  if len < 0 then
-    len = 0
-  elseif nbyte + len > #str then
-    len = #str - nbyte
-  end
-
-  return str:sub(nbyte + 1, nbyte + len)
+utils.strdisplaywidth = function()
+  error("strdisplaywidth deprecated. please use plenary.strings.strdisplaywidth")
 end
 
-utils.align_str = function(string, width, right_justify)
-  local str_len = utils.strdisplaywidth(string)
-  return right_justify
-    and string.rep(" ", width - str_len)..string
-    or string..string.rep(" ", width - str_len)
+utils.utf_ptr2len = function()
+  error("utf_ptr2len deprecated. please use plenary.strings.utf_ptr2len")
+end
+
+utils.strcharpart = function()
+  error("strcharpart deprecated. please use plenary.strings.strcharpart")
+end
+
+utils.align_str = function()
+  error("align_str deprecated. please use plenary.strings.align_str")
 end
 
 utils.transform_devicons = (function()