[extregs] initial commit.HEADmain

added a bunch of useful extregs

1 files changed, 31 insertions, 0 deletions

diff --git a/lua/extregs/util.lua b/lua/extregs/util.lua
new file mode 100644
index 0000000..6dd1f00
--- /dev/null
+++ b/lua/extregs/util.lua
@@ -0,0 +1,31 @@
+local M = {}
+
+function M.textreg(s)
+  return { lines = { tostring(s) }, type = 'v' }
+end
+
+function M.readonly(getter)
+  return {
+    read = function() return M.textreg(getter()) end,
+    write = function() return false end,
+    readonly = true,
+  }
+end
+
+function M.path(path)
+  return vim.fn.expand(path)
+end
+
+function M.shell_quote(s)
+  return "'" .. s:gsub("'", "'\\''") .. "'"
+end
+
+function M.system(argv, input, label)
+  local result = vim.system(argv, { text = false, stdin = input }):wait()
+  if result.code ~= 0 then
+    error((label or argv[1]) .. ': ' .. (result.stderr or ('exit status ' .. result.code)))
+  end
+  return result.stdout or ''
+end
+
+return M