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- # utils.coffee

- ¶

  Copyright 2012, 2013 The Apache Software Foundation

  Licensed under the Apache License, Version 2.0 (the “License”); you may not use this file except in compliance with the License. You may obtain a copy of the License at

      http:#www.apache.org/licenses/LICENSE-2.0

  Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an “AS IS” BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

- ¶

  # t5/core/utils

  A few handy functions.

      define ["underscore"],

        (_) ->

          trim = (input) ->
            if String.prototype.trim
              input.trim()
            else
              input.replace(/^\s+/, '').replace(/\s+$/, '')

- ¶

  Extends a URL, adding parameters and values from the params object. The values must already be URI encoded.

          extendURL = (url, params) ->

            sep = if url.indexOf("?") >= 0 then "&" else "?"

            for name, value of params
              url = url + sep + name + "=" + value
              sep = "&"

            return url

          exports =
            trim: trim
            extendURL: extendURL

            startsWith: (string, pattern) -> (string.indexOf pattern) is 0

- ¶

  Trims leading and trailing whitespace from a string. Delegates to String.prototype.trim if present. Determines if the input is a blank string, or null, or an empty array.

            isBlank: (input) ->

                return true if input is null

                if _.isArray input
                  return input.length is 0

                return false if typeof input is "boolean"

                return (exports.trim input).length is 0

- ¶

  Splits the input string into words separated by whitespace

            split: (str) -> _(str.split " ").reject((s) -> s is "")