WIP - add extractor, generate snippet_data

node_modules/detab/index.js

@@ -0,0 +1,46 @@
+'use strict'
+
+module.exports = detab
+
+var repeat = require('repeat-string')
+
+var tab = 0x09
+var lineFeed = 0x0a
+var carriageReturn = 0x0d
+
+// Replace tabs with spaces, being smart about which column the tab is at and
+// which size should be used.
+function detab(value, size) {
+  var string = typeof value === 'string'
+  var length = string && value.length
+  var start = 0
+  var index = -1
+  var column = -1
+  var tabSize = size || 4
+  var results = []
+  var code
+  var add
+
+  if (!string) {
+    throw new Error('detab expected string')
+  }
+
+  while (++index < length) {
+    code = value.charCodeAt(index)
+
+    if (code === tab) {
+      add = tabSize - ((column + 1) % tabSize)
+      column += add
+      results.push(value.slice(start, index) + repeat(' ', add))
+      start = index + 1
+    } else if (code === lineFeed || code === carriageReturn) {
+      column = -1
+    } else {
+      column++
+    }
+  }
+
+  results.push(value.slice(start))
+
+  return results.join('')
+}