Data commit

Task/Multisplit/CoffeeScript/multisplit.coffee

@@ -0,0 +1,30 @@
+multi_split = (text, separators) ->
+  # Split text up, using separators to break up text and discarding
+  # separators.
+  #
+  # Returns an array of strings, which can include empty strings when
+  # separators are found either adjacent to each other or at the
+  # beginning/end of the text.
+  #
+  # Separators have precedence, according to their order in the array,
+  # and each separator should be at least one character long.
+  result = []
+  i = 0
+  s = ''
+  while i < text.length
+    found = false
+    for separator in separators
+      if text.substring(i, i + separator.length) == separator
+        found = true
+        i += separator.length
+        result.push s
+        s = ''
+        break
+    if !found
+      s += text[i]
+      i += 1
+  result.push s
+  result
+
+console.log multi_split 'a!===b=!=c', ['==', '!=', '='] # [ 'a', '', 'b', '', 'c' ]
+console.log multi_split '', ['whatever'] # [ '' ]