fix for method documentation search (#233)

* fix doc search for methods on lines starting with class name and respect windows path separators

* replace Windows check with built-in function

* PR changes

* fix incorrect on_open method call

lua/scnvim/help.lua

@@ -35,7 +35,8 @@ M.on_open = action.new(function(err, uri, pattern)
  local is_open = vim.fn.win_gotoid(win_id) == 1
  local expr = string.format('edit %s', uri)
  if pattern then
- expr = string.format('edit +/%s %s', pattern, uri)
+ local subject = vim.fn.fnamemodify(uri, ':t:r')
+ expr = string.format('edit +/^\\\\(%s\\\\)\\\\?%s %s', subject, pattern, uri)
  end
  if is_open then
  vim.cmd(expr)
@@ -112,14 +113,12 @@ local function open_from_quickfix(index)
  local item = list[index]
  if item then
  local uri = vim.fn.bufname(item.bufnr)
+ local subject = vim.fn.fnamemodify(uri, ':t:r')
  if uv.fs_stat(uri) then
- M.on_open(nil, uri, item.pattern)
+ M.on_open(nil, uri, item.text)
  else
- local cmd = string.format('SCNvim.getFileNameFromUri("%s")', uri)
- sclang.eval(cmd, function(subject)
- render_help_file(subject, function(result)
- M.on_open(nil, result, item.pattern)
- end)
+ render_help_file(subject, function(result)
+ M.on_open(nil, result, item.text)
  end)
  end
  end
@@ -169,7 +168,6 @@ local function find_methods(name, target_dir)
  table.insert(results, {
  filename = destpath,
  text = string.format('.%s', name),
- pattern = string.format('^\\.%s', name),
  })
  end
  end