node-gtk/src/modules/cairo/indent.js

GNOME Gtk+ bindings for NodeJS

/*
 * indent.js
 */


module.exports = { indent, unindent }

function unindent(input) {
  input = input.replace(/^(\s*\n)+/, '')
  const lines = input.split('\n').filter(line => !/^\s*$/.test(line))
  const smallestIndent = lines.reduce((acc, cur) => {
    if (/^\s*$/.test(cur))
      return acc
    const currentIndent = cur.match(/^ */)[0].length
    return acc > currentIndent ?  currentIndent : acc
  }, lines[0].match(/^ */)[0].length)

  return input.replace(new RegExp('^' + ' '.repeat(smallestIndent), 'mg'), '').replace(/\s*$/, '')
}

function indent(spaces, input) {
  const lines = input.split('\n').map(l => l.trim())
  return lines.join('\n' + ' '.repeat(spaces))
}