Fix get_visual argument order bug

Ensure that the `start_row`, `start_col`, `end_row`, and `end_col` arguments to `nvim_buf_get_text`
are passed in the correct order regardless of the direction of the visual selection.  Previously,
if the end of the visual selection was before the start, `nvim_buf_get_text` would raise an error
saying "start_col must be less than end_col".

CHANGELOG.md

@@ -5,6 +5,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## UNRELEASED
+
+### Fixed
+
+- Visual selection now also works when selecting backwards
+
 ## 1.0.0 - 2023-08-28
 
 ### Added

lua/telescope-live-grep-args/shortcuts.lua

@@ -6,8 +6,13 @@ local live_grep_args = require("telescope").extensions.live_grep_args
 local helpers = require("telescope-live-grep-args.helpers")
 
 local function get_visual()
-  local _, ls, cs = unpack(vim.fn.getpos("v"))
-  local _, le, ce = unpack(vim.fn.getpos("."))
+  local _, ls, cs = unpack(vim.fn.getpos('v'))
+  local _, le, ce = unpack(vim.fn.getpos('.'))
+
+  -- nvim_buf_get_text requires start and end args be in correct order
+  ls, le = math.min(ls, le), math.max(ls, le)
+  cs, ce = math.min(cs, ce), math.max(cs, ce)
+
   return vim.api.nvim_buf_get_text(0, ls - 1, cs - 1, le - 1, ce, {})
 end