dotfiles/.config/nvim/lua/style.lua

-- set signs for various uses
Return_sign = ""
Space_sign = "·"

Reference_sign = "%s"
Definition_sign = ""

Error_sign = " "
Hack_sign = " "
Hint_sign = " "
Info_sign = " "
Perfect_sign = " "
Test_sign = " "
Todo_sign = " "
Warn_sign = " "

Menu_signs = {
  buffer = "",
  luasnip = "",
  nvim_lsp = "",
  path = "",
}


Lsp_signs = {
  Array = "",
  Boolean = "⊥",
  Class = "",
  Color = "",
  Component = "",
  Constant = "π",
  Constructor = "",
  Enum = "",
  EnumMember = "",
  Event = "",
  Field = "■",
  File = "",
  Folder = "",
  Fragment = "",
  Function = "φ",
  Interface = "",
  Keyword = "",
  Method = "",
  Module = "",
  Namespace = "",
  Null = "∅",
  Number = "#",
  Object = "",
  Operator = "",
  Package = "",
  Property = "",
  Reference = "",
  Snippet = "",
  String = "",
  Struct = "",
  Text = "",
  TypeParameter = "",
  Unit = "",
  Value = "",
  Variable = "β",
}

Install_signs = {
  package_installed = "",
  package_pending = "",
  package_uninstalled = "✗",
}

Git_signs = {
  deleted = "",
  ignored = "",
  renamed = "",
  staged = "",
  unmerged = "",
  unstaged = "",
  untracked = "",
}

Lazy_signs = {
  cmd = " ",
  config = " ",
  event = " ",
  ft = " ",
  import = " ",
  init = " ",
  keys = " ",
  lazy = "󰒲 ",
  list = {
    "●",
    "➜",
    "",
    "",
  },
  loaded = " ",
  not_loaded = " ",
  plugin = " ",
  runtime = " ",
  source = " ",
  start = " ",
  task = " ",
}

Lualine_signs = {
  modified = "",
  newfile = "",
  readonly = "",
  unnamed = "",
}

vim.diagnostic.config({
  severity_sort = true,
  signs = {
    text = {
      [vim.diagnostic.severity.ERROR] = Error_sign,
      [vim.diagnostic.severity.WARN] = Warn_sign,
      [vim.diagnostic.severity.INFO] = Info_sign,
      [vim.diagnostic.severity.HINT] = Hint_sign,
    },
  },
})

-- enable colorcolumn when textwidth is set
vim.o.cursorline = true
vim.opt_local.colorcolumn = "+" .. vim.fn.join(vim.fn.range(0, 254), ",+")
-- alternatively highlight only one line for colorcolumn
-- vim.o.colorcolumn = "-0"

-- display certain invisible chars
vim.o.list = true
vim.opt.listchars:append("space:" .. Space_sign)
vim.opt.listchars:append("eol:" .. Return_sign)

-- custom viper-highlighting
local viper_group = vim.api.nvim_create_augroup("ViperSyntax", { clear = true })
vim.api.nvim_create_autocmd("FileType", {
  group = viper_group,
  pattern = "viper",
  callback = function()
    vim.cmd("syntax enable")
    vim.cmd([[
      syntax keyword viperKeyword method function returns requires ensures invariant
      syntax keyword viperKeyword if else while var field predicate
      syntax keyword viperKeyword assert

      syntax keyword viperType Int Bool Ref

      syntax match viperComment "//.*$"
      syntax match viperNumber "\v\d+"
    ]])
    vim.api.nvim_set_hl(0, "viperKeyword", { link = "Keyword" })
    vim.api.nvim_set_hl(0, "viperType", { link = "Type" })
    vim.api.nvim_set_hl(0, "viperComment", { link = "Comment" })
    vim.api.nvim_set_hl(0, "viperNumber", { link = "Number" })
  end,
})