From 4db161c4c02e6794f507eba9628e3455f625ea0c Mon Sep 17 00:00:00 2001
From: "Christoph J. Scherr" <Christoph.Scherr@newtec.de>
Date: Thu, 4 Jul 2024 12:47:27 +0200
Subject: [PATCH] utils

---
 lua/custom/plugins/configs/lsp.lua | 31 ++++++-----
 lua/custom/utils.lua               | 84 ++++++++++++++++++++++++++++++
 2 files changed, 99 insertions(+), 16 deletions(-)
 create mode 100644 lua/custom/utils.lua

diff --git a/lua/custom/plugins/configs/lsp.lua b/lua/custom/plugins/configs/lsp.lua
index 8efd086..0a15549 100644
--- a/lua/custom/plugins/configs/lsp.lua
+++ b/lua/custom/plugins/configs/lsp.lua
@@ -1,31 +1,30 @@
-local lspconfig = require "lspconfig"
-local lspsettings = require "custom.plugins.configs.lspsettings"
+local lspconfig = require 'lspconfig'
+local lspsettings = require 'custom.plugins.configs.lspsettings'
 
 -- these are using the defaults
 local servers = {
-  "html",
-  "cssls",
-  "tsserver",
-  "clangd",
-  "bashls",
-  "cmake",
-  "yamlls",
-  "texlab",
-  "csharp_ls",
+  'html',
+  'cssls',
+  'tsserver',
+  'clangd',
+  'bashls',
+  'cmake',
+  'yamlls',
+  'texlab',
+  'csharp_ls',
 }
 
 for _, lsp in ipairs(servers) do
-  lspconfig[lsp].setup()
+  lspconfig[lsp].setup {}
 end
 
 local server_with_settings = {
   -- "textlsp",
-  "ltex",
-  "rust_analyzer",
-  "basedpyright",
+  'ltex',
+  'rust_analyzer',
+  'basedpyright',
 }
 
 for _, lsp in ipairs(server_with_settings) do
   lspconfig[lsp].setup(lspsettings[lsp])
 end
-
diff --git a/lua/custom/utils.lua b/lua/custom/utils.lua
new file mode 100644
index 0000000..d9edb54
--- /dev/null
+++ b/lua/custom/utils.lua
@@ -0,0 +1,84 @@
+local M = {}
+--- this function will split a string into a table of tokens, like it would
+--- be passed into the `argv` of a program that was executed from the commandline
+---
+--- @param raw string string of cli args that should be split
+--- @return table tokens args as a table
+M.tokenize_args = function(raw)
+  -- NOTE: string.gmatch is does not use regex, but a smaller pattern matcher!
+  -- A complete regex parser would be larger than lua itself. See
+  -- [Programming in Lua 20.2](https://www.lua.org/pil/20.2.html).
+  --
+  -- Notable differences:
+  -- '-' is ungreedy wildcard
+  -- '*?' does not work
+  -- '|' is not or
+  --
+  -- This means we're better of implementing the lexer with an algorithm.
+  local t = {}
+  local current = ""
+  local in_str = false
+  local str_seek
+  for c in string.gmatch(raw, ".") do -- iterate through all chars
+    if c == " " and not in_str then
+      if string.len(current) > 0 then
+        table.insert(t, current)
+        current = ""
+      end
+    elseif c == '"' and not in_str then
+      in_str = true
+      str_seek = '"'
+    elseif c == "'" and not in_str then
+      in_str = true
+      str_seek = "'"
+    elseif c == str_seek and in_str then
+      in_str = false
+      table.insert(t, current)
+      current = ""
+    else
+      current = current .. c
+    end
+  end
+  if string.len(current) > 0 then
+    table.insert(t, current)
+  end
+  return t
+end
+
+--- dumps a variable into a string, so it can be printed. This is meant for
+--- debug prints
+--- @param t any variable
+--- @return string t_dumped t dumped to string
+M.dump = function(t)
+  if type(t) == "table" then
+    local s = "{ "
+    for k, v in pairs(t) do
+      if type(k) ~= "number" then
+        k = '"' .. k .. '"'
+      end
+      if k ~= 1 then
+        s = s .. ", "
+      end
+      s = s .. "[" .. k .. "] = '" .. M.dump(v) .. "'"
+    end
+    return s .. " }"
+  else
+    return tostring(t)
+  end
+end
+
+--- Try to require a module
+--- @param module string module name
+--- @return boolean available is the module available?
+--- @return any loaded_module the loaded module if it is available
+M.try_require = function(module)
+  local available, loaded_module = pcall(require, module)
+  if not available then
+    return available, nil
+  else
+    return available, loaded_module
+  end
+end
+
+return M
+