1 files changed, 685 insertions, 0 deletions
diff --git a/src/blockly/blocks/text.js b/src/blockly/blocks/text.js
new file mode 100644
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--- /dev/null
+++ b/src/blockly/blocks/text.js
@@ -0,0 +1,685 @@
+/**
+ * @license
+ * Visual Blocks Editor
+ *
+ * Copyright 2012 Google Inc.
+ * https://developers.google.com/blockly/
+ *
+ * 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.
+ */
+
+/**
+ * @fileoverview Text blocks for Blockly.
+ * @author fraser@google.com (Neil Fraser)
+ */
+'use strict';
+
+goog.provide('Blockly.Blocks.texts');
+
+goog.require('Blockly.Blocks');
+
+
+/**
+ * Common HSV hue for all blocks in this category.
+ */
+Blockly.Blocks.texts.HUE = 160;
+
+Blockly.Blocks['text'] = {
+  /**
+   * Block for text value.
+   * @this Blockly.Block
+   */
+  init: function() {
+    this.setHelpUrl(Blockly.Msg.TEXT_TEXT_HELPURL);
+    this.setColour(Blockly.Blocks.texts.HUE);
+    this.appendDummyInput()
+        .appendField(this.newQuote_(true))
+        .appendField(new Blockly.FieldTextInput(''), 'TEXT')
+        .appendField(this.newQuote_(false));
+    this.setOutput(true, 'String');
+    // Assign 'this' to a variable for use in the tooltip closure below.
+    var thisBlock = this;
+    // Text block is trivial.  Use tooltip of parent block if it exists.
+    this.setTooltip(function() {
+      var parent = thisBlock.getParent();
+      return (parent && parent.getInputsInline() && parent.tooltip) ||
+          Blockly.Msg.TEXT_TEXT_TOOLTIP;
+    });
+  },
+  /**
+   * Create an image of an open or closed quote.
+   * @param {boolean} open True if open quote, false if closed.
+   * @return {!Blockly.FieldImage} The field image of the quote.
+   * @this Blockly.Block
+   * @private
+   */
+  newQuote_: function(open) {
+    if (open == this.RTL) {
+      var file = 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAwAAAAKCAQAAAAqJXdxAAAAqUlEQVQI1z3KvUpCcRiA8ef9E4JNHhI0aFEacm1o0BsI0Slx8wa8gLauoDnoBhq7DcfWhggONDmJJgqCPA7neJ7p934EOOKOnM8Q7PDElo/4x4lFb2DmuUjcUzS3URnGib9qaPNbuXvBO3sGPHJDRG6fGVdMSeWDP2q99FQdFrz26Gu5Tq7dFMzUvbXy8KXeAj57cOklgA+u1B5AoslLtGIHQMaCVnwDnADZIFIrXsoXrgAAAABJRU5ErkJggg==';
+    } else {
+      var file = 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAwAAAAKCAQAAAAqJXdxAAAAn0lEQVQI1z3OMa5BURSF4f/cQhAKjUQhuQmFNwGJEUi0RKN5rU7FHKhpjEH3TEMtkdBSCY1EIv8r7nFX9e29V7EBAOvu7RPjwmWGH/VuF8CyN9/OAdvqIXYLvtRaNjx9mMTDyo+NjAN1HNcl9ZQ5oQMM3dgDUqDo1l8DzvwmtZN7mnD+PkmLa+4mhrxVA9fRowBWmVBhFy5gYEjKMfz9AylsaRRgGzvZAAAAAElFTkSuQmCC';
+    }
+    return new Blockly.FieldImage(file, 12, 12, '"');
+  }
+};
+
+Blockly.Blocks['text_join'] = {
+  /**
+   * Block for creating a string made up of any number of elements of any type.
+   * @this Blockly.Block
+   */
+  init: function() {
+    this.setHelpUrl(Blockly.Msg.TEXT_JOIN_HELPURL);
+    this.setColour(Blockly.Blocks.texts.HUE);
+    this.itemCount_ = 2;
+    this.updateShape_();
+    this.setOutput(true, 'String');
+    this.setMutator(new Blockly.Mutator(['text_create_join_item']));
+    this.setTooltip(Blockly.Msg.TEXT_JOIN_TOOLTIP);
+  },
+  /**
+   * Create XML to represent number of text inputs.
+   * @return {!Element} XML storage element.
+   * @this Blockly.Block
+   */
+  mutationToDom: function() {
+    var container = document.createElement('mutation');
+    container.setAttribute('items', this.itemCount_);
+    return container;
+  },
+  /**
+   * Parse XML to restore the text inputs.
+   * @param {!Element} xmlElement XML storage element.
+   * @this Blockly.Block
+   */
+  domToMutation: function(xmlElement) {
+    this.itemCount_ = parseInt(xmlElement.getAttribute('items'), 10);
+    this.updateShape_();
+  },
+  /**
+   * Populate the mutator's dialog with this block's components.
+   * @param {!Blockly.Workspace} workspace Mutator's workspace.
+   * @return {!Blockly.Block} Root block in mutator.
+   * @this Blockly.Block
+   */
+  decompose: function(workspace) {
+    var containerBlock = workspace.newBlock('text_create_join_container');
+    containerBlock.initSvg();
+    var connection = containerBlock.getInput('STACK').connection;
+    for (var i = 0; i < this.itemCount_; i++) {
+      var itemBlock = workspace.newBlock('text_create_join_item');
+      itemBlock.initSvg();
+      connection.connect(itemBlock.previousConnection);
+      connection = itemBlock.nextConnection;
+    }
+    return containerBlock;
+  },
+  /**
+   * Reconfigure this block based on the mutator dialog's components.
+   * @param {!Blockly.Block} containerBlock Root block in mutator.
+   * @this Blockly.Block
+   */
+  compose: function(containerBlock) {
+    var itemBlock = containerBlock.getInputTargetBlock('STACK');
+    // Count number of inputs.
+    var connections = [];
+    while (itemBlock) {
+      connections.push(itemBlock.valueConnection_);
+      itemBlock = itemBlock.nextConnection &&
+          itemBlock.nextConnection.targetBlock();
+    }
+    // Disconnect any children that don't belong.
+    for (var i = 0; i < this.itemCount_; i++) {
+      var connection = this.getInput('ADD' + i).connection.targetConnection;
+      if (connection && connections.indexOf(connection) == -1) {
+        connection.disconnect();
+      }
+    }
+    this.itemCount_ = connections.length;
+    this.updateShape_();
+    // Reconnect any child blocks.
+    for (var i = 0; i < this.itemCount_; i++) {
+      Blockly.Mutator.reconnect(connections[i], this, 'ADD' + i);
+    }
+  },
+  /**
+   * Store pointers to any connected child blocks.
+   * @param {!Blockly.Block} containerBlock Root block in mutator.
+   * @this Blockly.Block
+   */
+  saveConnections: function(containerBlock) {
+    var itemBlock = containerBlock.getInputTargetBlock('STACK');
+    var i = 0;
+    while (itemBlock) {
+      var input = this.getInput('ADD' + i);
+      itemBlock.valueConnection_ = input && input.connection.targetConnection;
+      i++;
+      itemBlock = itemBlock.nextConnection &&
+          itemBlock.nextConnection.targetBlock();
+    }
+  },
+  /**
+   * Modify this block to have the correct number of inputs.
+   * @private
+   * @this Blockly.Block
+   */
+  updateShape_: function() {
+    if (this.itemCount_ && this.getInput('EMPTY')) {
+      this.removeInput('EMPTY');
+    } else if (!this.itemCount_ && !this.getInput('EMPTY')) {
+      this.appendDummyInput('EMPTY')
+          .appendField(this.newQuote_(true))
+          .appendField(this.newQuote_(false));
+    }
+    // Add new inputs.
+    for (var i = 0; i < this.itemCount_; i++) {
+      if (!this.getInput('ADD' + i)) {
+        var input = this.appendValueInput('ADD' + i);
+        if (i == 0) {
+          input.appendField(Blockly.Msg.TEXT_JOIN_TITLE_CREATEWITH);
+        }
+      }
+    }
+    // Remove deleted inputs.
+    while (this.getInput('ADD' + i)) {
+      this.removeInput('ADD' + i);
+      i++;
+    }
+  },
+  newQuote_: Blockly.Blocks['text'].newQuote_
+};
+
+Blockly.Blocks['text_create_join_container'] = {
+  /**
+   * Mutator block for container.
+   * @this Blockly.Block
+   */
+  init: function() {
+    this.setColour(Blockly.Blocks.texts.HUE);
+    this.appendDummyInput()
+        .appendField(Blockly.Msg.TEXT_CREATE_JOIN_TITLE_JOIN);
+    this.appendStatementInput('STACK');
+    this.setTooltip(Blockly.Msg.TEXT_CREATE_JOIN_TOOLTIP);
+    this.contextMenu = false;
+  }
+};
+
+Blockly.Blocks['text_create_join_item'] = {
+  /**
+   * Mutator block for add items.
+   * @this Blockly.Block
+   */
+  init: function() {
+    this.setColour(Blockly.Blocks.texts.HUE);
+    this.appendDummyInput()
+        .appendField(Blockly.Msg.TEXT_CREATE_JOIN_ITEM_TITLE_ITEM);
+    this.setPreviousStatement(true);
+    this.setNextStatement(true);
+    this.setTooltip(Blockly.Msg.TEXT_CREATE_JOIN_ITEM_TOOLTIP);
+    this.contextMenu = false;
+  }
+};
+
+Blockly.Blocks['text_append'] = {
+  /**
+   * Block for appending to a variable in place.
+   * @this Blockly.Block
+   */
+  init: function() {
+    this.setHelpUrl(Blockly.Msg.TEXT_APPEND_HELPURL);
+    this.setColour(Blockly.Blocks.texts.HUE);
+    this.appendValueInput('TEXT')
+        .appendField(Blockly.Msg.TEXT_APPEND_TO)
+        .appendField(new Blockly.FieldVariable(
+        Blockly.Msg.TEXT_APPEND_VARIABLE), 'VAR')
+        .appendField(Blockly.Msg.TEXT_APPEND_APPENDTEXT);
+    this.setPreviousStatement(true);
+    this.setNextStatement(true);
+    // Assign 'this' to a variable for use in the tooltip closure below.
+    var thisBlock = this;
+    this.setTooltip(function() {
+      return Blockly.Msg.TEXT_APPEND_TOOLTIP.replace('%1',
+          thisBlock.getFieldValue('VAR'));
+    });
+  }
+};
+
+Blockly.Blocks['text_length'] = {
+  /**
+   * Block for string length.
+   * @this Blockly.Block
+   */
+  init: function() {
+    this.jsonInit({
+      "message0": Blockly.Msg.TEXT_LENGTH_TITLE,
+      "args0": [
+        {
+          "type": "input_value",
+          "name": "VALUE",
+          "check": ['String', 'Array']
+        }
+      ],
+      "output": 'Number',
+      "colour": Blockly.Blocks.texts.HUE,
+      "tooltip": Blockly.Msg.TEXT_LENGTH_TOOLTIP,
+      "helpUrl": Blockly.Msg.TEXT_LENGTH_HELPURL
+    });
+  }
+};
+
+Blockly.Blocks['text_isEmpty'] = {
+  /**
+   * Block for is the string null?
+   * @this Blockly.Block
+   */
+  init: function() {
+    this.jsonInit({
+      "message0": Blockly.Msg.TEXT_ISEMPTY_TITLE,
+      "args0": [
+        {
+          "type": "input_value",
+          "name": "VALUE",
+          "check": ['String', 'Array']
+        }
+      ],
+      "output": 'Boolean',
+      "colour": Blockly.Blocks.texts.HUE,
+      "tooltip": Blockly.Msg.TEXT_ISEMPTY_TOOLTIP,
+      "helpUrl": Blockly.Msg.TEXT_ISEMPTY_HELPURL
+    });
+  }
+};
+
+Blockly.Blocks['text_indexOf'] = {
+  /**
+   * Block for finding a substring in the text.
+   * @this Blockly.Block
+   */
+  init: function() {
+    var OPERATORS =
+        [[Blockly.Msg.TEXT_INDEXOF_OPERATOR_FIRST, 'FIRST'],
+         [Blockly.Msg.TEXT_INDEXOF_OPERATOR_LAST, 'LAST']];
+    this.setHelpUrl(Blockly.Msg.TEXT_INDEXOF_HELPURL);
+    this.setColour(Blockly.Blocks.texts.HUE);
+    this.setOutput(true, 'Number');
+    this.appendValueInput('VALUE')
+        .setCheck('String')
+        .appendField(Blockly.Msg.TEXT_INDEXOF_INPUT_INTEXT);
+    this.appendValueInput('FIND')
+        .setCheck('String')
+        .appendField(new Blockly.FieldDropdown(OPERATORS), 'END');
+    if (Blockly.Msg.TEXT_INDEXOF_TAIL) {
+      this.appendDummyInput().appendField(Blockly.Msg.TEXT_INDEXOF_TAIL);
+    }
+    this.setInputsInline(true);
+    var tooltip = Blockly.Msg.TEXT_INDEXOF_TOOLTIP
+        .replace('%1', Blockly.Blocks.ONE_BASED_INDEXING ? '0' : '-1');
+    this.setTooltip(tooltip);
+  }
+};
+
+Blockly.Blocks['text_charAt'] = {
+  /**
+   * Block for getting a character from the string.
+   * @this Blockly.Block
+   */
+  init: function() {
+    this.WHERE_OPTIONS =
+        [[Blockly.Msg.TEXT_CHARAT_FROM_START, 'FROM_START'],
+         [Blockly.Msg.TEXT_CHARAT_FROM_END, 'FROM_END'],
+         [Blockly.Msg.TEXT_CHARAT_FIRST, 'FIRST'],
+         [Blockly.Msg.TEXT_CHARAT_LAST, 'LAST'],
+         [Blockly.Msg.TEXT_CHARAT_RANDOM, 'RANDOM']];
+    this.setHelpUrl(Blockly.Msg.TEXT_CHARAT_HELPURL);
+    this.setColour(Blockly.Blocks.texts.HUE);
+    this.setOutput(true, 'String');
+    this.appendValueInput('VALUE')
+        .setCheck('String')
+        .appendField(Blockly.Msg.TEXT_CHARAT_INPUT_INTEXT);
+    this.appendDummyInput('AT');
+    this.setInputsInline(true);
+    this.updateAt_(true);
+    // Assign 'this' to a variable for use in the tooltip closure below.
+    var thisBlock = this;
+    this.setTooltip(function() {
+      var where = thisBlock.getFieldValue('WHERE');
+      var tooltip = Blockly.Msg.TEXT_CHARAT_TOOLTIP;
+      if (where == 'FROM_START' || where == 'FROM_END') {
+        tooltip += '  ' + Blockly.Msg.LISTS_INDEX_FROM_END_TOOLTIP
+            .replace('%1', Blockly.Blocks.ONE_BASED_INDEXING ? '#1' : '#0');
+      }
+      return tooltip;
+    });
+  },
+  /**
+   * Create XML to represent whether there is an 'AT' input.
+   * @return {!Element} XML storage element.
+   * @this Blockly.Block
+   */
+  mutationToDom: function() {
+    var container = document.createElement('mutation');
+    var isAt = this.getInput('AT').type == Blockly.INPUT_VALUE;
+    container.setAttribute('at', isAt);
+    return container;
+  },
+  /**
+   * Parse XML to restore the 'AT' input.
+   * @param {!Element} xmlElement XML storage element.
+   * @this Blockly.Block
+   */
+  domToMutation: function(xmlElement) {
+    // Note: Until January 2013 this block did not have mutations,
+    // so 'at' defaults to true.
+    var isAt = (xmlElement.getAttribute('at') != 'false');
+    this.updateAt_(isAt);
+  },
+  /**
+   * Create or delete an input for the numeric index.
+   * @param {boolean} isAt True if the input should exist.
+   * @private
+   * @this Blockly.Block
+   */
+  updateAt_: function(isAt) {
+    // Destroy old 'AT' and 'ORDINAL' inputs.
+    this.removeInput('AT');
+    this.removeInput('ORDINAL', true);
+    // Create either a value 'AT' input or a dummy input.
+    if (isAt) {
+      this.appendValueInput('AT').setCheck('Number');
+      if (Blockly.Msg.ORDINAL_NUMBER_SUFFIX) {
+        this.appendDummyInput('ORDINAL')
+            .appendField(Blockly.Msg.ORDINAL_NUMBER_SUFFIX);
+      }
+    } else {
+      this.appendDummyInput('AT');
+    }
+    if (Blockly.Msg.TEXT_CHARAT_TAIL) {
+      this.removeInput('TAIL', true);
+      this.appendDummyInput('TAIL')
+          .appendField(Blockly.Msg.TEXT_CHARAT_TAIL);
+    }
+    var menu = new Blockly.FieldDropdown(this.WHERE_OPTIONS, function(value) {
+      var newAt = (value == 'FROM_START') || (value == 'FROM_END');
+      // The 'isAt' variable is available due to this function being a closure.
+      if (newAt != isAt) {
+        var block = this.sourceBlock_;
+        block.updateAt_(newAt);
+        // This menu has been destroyed and replaced.  Update the replacement.
+        block.setFieldValue(value, 'WHERE');
+        return null;
+      }
+      return undefined;
+    });
+    this.getInput('AT').appendField(menu, 'WHERE');
+  }
+};
+
+Blockly.Blocks['text_getSubstring'] = {
+  /**
+   * Block for getting substring.
+   * @this Blockly.Block
+   */
+  init: function() {
+    this['WHERE_OPTIONS_1'] =
+        [[Blockly.Msg.TEXT_GET_SUBSTRING_START_FROM_START, 'FROM_START'],
+         [Blockly.Msg.TEXT_GET_SUBSTRING_START_FROM_END, 'FROM_END'],
+         [Blockly.Msg.TEXT_GET_SUBSTRING_START_FIRST, 'FIRST']];
+    this['WHERE_OPTIONS_2'] =
+        [[Blockly.Msg.TEXT_GET_SUBSTRING_END_FROM_START, 'FROM_START'],
+         [Blockly.Msg.TEXT_GET_SUBSTRING_END_FROM_END, 'FROM_END'],
+         [Blockly.Msg.TEXT_GET_SUBSTRING_END_LAST, 'LAST']];
+    this.setHelpUrl(Blockly.Msg.TEXT_GET_SUBSTRING_HELPURL);
+    this.setColour(Blockly.Blocks.texts.HUE);
+    this.appendValueInput('STRING')
+        .setCheck('String')
+        .appendField(Blockly.Msg.TEXT_GET_SUBSTRING_INPUT_IN_TEXT);
+    this.appendDummyInput('AT1');
+    this.appendDummyInput('AT2');
+    if (Blockly.Msg.TEXT_GET_SUBSTRING_TAIL) {
+      this.appendDummyInput('TAIL')
+          .appendField(Blockly.Msg.TEXT_GET_SUBSTRING_TAIL);
+    }
+    this.setInputsInline(true);
+    this.setOutput(true, 'String');
+    this.updateAt_(1, true);
+    this.updateAt_(2, true);
+    this.setTooltip(Blockly.Msg.TEXT_GET_SUBSTRING_TOOLTIP);
+  },
+  /**
+   * Create XML to represent whether there are 'AT' inputs.
+   * @return {!Element} XML storage element.
+   * @this Blockly.Block
+   */
+  mutationToDom: function() {
+    var container = document.createElement('mutation');
+    var isAt1 = this.getInput('AT1').type == Blockly.INPUT_VALUE;
+    container.setAttribute('at1', isAt1);
+    var isAt2 = this.getInput('AT2').type == Blockly.INPUT_VALUE;
+    container.setAttribute('at2', isAt2);
+    return container;
+  },
+  /**
+   * Parse XML to restore the 'AT' inputs.
+   * @param {!Element} xmlElement XML storage element.
+   * @this Blockly.Block
+   */
+  domToMutation: function(xmlElement) {
+    var isAt1 = (xmlElement.getAttribute('at1') == 'true');
+    var isAt2 = (xmlElement.getAttribute('at2') == 'true');
+    this.updateAt_(1, isAt1);
+    this.updateAt_(2, isAt2);
+  },
+  /**
+   * Create or delete an input for a numeric index.
+   * This block has two such inputs, independant of each other.
+   * @param {number} n Specify first or second input (1 or 2).
+   * @param {boolean} isAt True if the input should exist.
+   * @private
+   * @this Blockly.Block
+   */
+  updateAt_: function(n, isAt) {
+    // Create or delete an input for the numeric index.
+    // Destroy old 'AT' and 'ORDINAL' inputs.
+    this.removeInput('AT' + n);
+    this.removeInput('ORDINAL' + n, true);
+    // Create either a value 'AT' input or a dummy input.
+    if (isAt) {
+      this.appendValueInput('AT' + n).setCheck('Number');
+      if (Blockly.Msg.ORDINAL_NUMBER_SUFFIX) {
+        this.appendDummyInput('ORDINAL' + n)
+            .appendField(Blockly.Msg.ORDINAL_NUMBER_SUFFIX);
+      }
+    } else {
+      this.appendDummyInput('AT' + n);
+    }
+    // Move tail, if present, to end of block.
+    if (n == 2 && Blockly.Msg.TEXT_GET_SUBSTRING_TAIL) {
+      this.removeInput('TAIL', true);
+      this.appendDummyInput('TAIL')
+          .appendField(Blockly.Msg.TEXT_GET_SUBSTRING_TAIL);
+    }
+    var menu = new Blockly.FieldDropdown(this['WHERE_OPTIONS_' + n],
+        function(value) {
+          var newAt = (value == 'FROM_START') || (value == 'FROM_END');
+          // The 'isAt' variable is available due to this function being a
+          // closure.
+          if (newAt != isAt) {
+            var block = this.sourceBlock_;
+            block.updateAt_(n, newAt);
+            // This menu has been destroyed and replaced.
+            // Update the replacement.
+            block.setFieldValue(value, 'WHERE' + n);
+            return null;
+          }
+          return undefined;
+        });
+
+    this.getInput('AT' + n)
+        .appendField(menu, 'WHERE' + n);
+    if (n == 1) {
+      this.moveInputBefore('AT1', 'AT2');
+    }
+  }
+};
+
+Blockly.Blocks['text_changeCase'] = {
+  /**
+   * Block for changing capitalization.
+   * @this Blockly.Block
+   */
+  init: function() {
+    var OPERATORS =
+        [[Blockly.Msg.TEXT_CHANGECASE_OPERATOR_UPPERCASE, 'UPPERCASE'],
+         [Blockly.Msg.TEXT_CHANGECASE_OPERATOR_LOWERCASE, 'LOWERCASE'],
+         [Blockly.Msg.TEXT_CHANGECASE_OPERATOR_TITLECASE, 'TITLECASE']];
+    this.setHelpUrl(Blockly.Msg.TEXT_CHANGECASE_HELPURL);
+    this.setColour(Blockly.Blocks.texts.HUE);
+    this.appendValueInput('TEXT')
+        .setCheck('String')
+        .appendField(new Blockly.FieldDropdown(OPERATORS), 'CASE');
+    this.setOutput(true, 'String');
+    this.setTooltip(Blockly.Msg.TEXT_CHANGECASE_TOOLTIP);
+  }
+};
+
+Blockly.Blocks['text_trim'] = {
+  /**
+   * Block for trimming spaces.
+   * @this Blockly.Block
+   */
+  init: function() {
+    var OPERATORS =
+        [[Blockly.Msg.TEXT_TRIM_OPERATOR_BOTH, 'BOTH'],
+         [Blockly.Msg.TEXT_TRIM_OPERATOR_LEFT, 'LEFT'],
+         [Blockly.Msg.TEXT_TRIM_OPERATOR_RIGHT, 'RIGHT']];
+    this.setHelpUrl(Blockly.Msg.TEXT_TRIM_HELPURL);
+    this.setColour(Blockly.Blocks.texts.HUE);
+    this.appendValueInput('TEXT')
+        .setCheck('String')
+        .appendField(new Blockly.FieldDropdown(OPERATORS), 'MODE');
+    this.setOutput(true, 'String');
+    this.setTooltip(Blockly.Msg.TEXT_TRIM_TOOLTIP);
+  }
+};
+
+Blockly.Blocks['text_print'] = {
+  /**
+   * Block for print statement.
+   * @this Blockly.Block
+   */
+  init: function() {
+    this.jsonInit({
+      "message0": Blockly.Msg.TEXT_PRINT_TITLE,
+      "args0": [
+        {
+          "type": "input_value",
+          "name": "TEXT"
+        }
+      ],
+      "previousStatement": null,
+      "nextStatement": null,
+      "colour": Blockly.Blocks.texts.HUE,
+      "tooltip": Blockly.Msg.TEXT_PRINT_TOOLTIP,
+      "helpUrl": Blockly.Msg.TEXT_PRINT_HELPURL
+    });
+  }
+};
+
+Blockly.Blocks['text_prompt_ext'] = {
+  /**
+   * Block for prompt function (external message).
+   * @this Blockly.Block
+   */
+  init: function() {
+    var TYPES =
+        [[Blockly.Msg.TEXT_PROMPT_TYPE_TEXT, 'TEXT'],
+         [Blockly.Msg.TEXT_PROMPT_TYPE_NUMBER, 'NUMBER']];
+    this.setHelpUrl(Blockly.Msg.TEXT_PROMPT_HELPURL);
+    this.setColour(Blockly.Blocks.texts.HUE);
+    // Assign 'this' to a variable for use in the closures below.
+    var thisBlock = this;
+    var dropdown = new Blockly.FieldDropdown(TYPES, function(newOp) {
+      thisBlock.updateType_(newOp);
+    });
+    this.appendValueInput('TEXT')
+        .appendField(dropdown, 'TYPE');
+    this.setOutput(true, 'String');
+    this.setTooltip(function() {
+      return (thisBlock.getFieldValue('TYPE') == 'TEXT') ?
+          Blockly.Msg.TEXT_PROMPT_TOOLTIP_TEXT :
+          Blockly.Msg.TEXT_PROMPT_TOOLTIP_NUMBER;
+    });
+  },
+  /**
+   * Modify this block to have the correct output type.
+   * @param {string} newOp Either 'TEXT' or 'NUMBER'.
+   * @private
+   * @this Blockly.Block
+   */
+  updateType_: function(newOp) {
+    this.outputConnection.setCheck(newOp == 'NUMBER' ? 'Number' : 'String');
+  },
+  /**
+   * Create XML to represent the output type.
+   * @return {!Element} XML storage element.
+   * @this Blockly.Block
+   */
+  mutationToDom: function() {
+    var container = document.createElement('mutation');
+    container.setAttribute('type', this.getFieldValue('TYPE'));
+    return container;
+  },
+  /**
+   * Parse XML to restore the output type.
+   * @param {!Element} xmlElement XML storage element.
+   * @this Blockly.Block
+   */
+  domToMutation: function(xmlElement) {
+    this.updateType_(xmlElement.getAttribute('type'));
+  }
+};
+
+Blockly.Blocks['text_prompt'] = {
+  /**
+   * Block for prompt function (internal message).
+   * The 'text_prompt_ext' block is preferred as it is more flexible.
+   * @this Blockly.Block
+   */
+  init: function() {
+    var TYPES =
+        [[Blockly.Msg.TEXT_PROMPT_TYPE_TEXT, 'TEXT'],
+         [Blockly.Msg.TEXT_PROMPT_TYPE_NUMBER, 'NUMBER']];
+    // Assign 'this' to a variable for use in the closures below.
+    var thisBlock = this;
+    this.setHelpUrl(Blockly.Msg.TEXT_PROMPT_HELPURL);
+    this.setColour(Blockly.Blocks.texts.HUE);
+    var dropdown = new Blockly.FieldDropdown(TYPES, function(newOp) {
+      thisBlock.updateType_(newOp);
+    });
+    this.appendDummyInput()
+        .appendField(dropdown, 'TYPE')
+        .appendField(this.newQuote_(true))
+        .appendField(new Blockly.FieldTextInput(''), 'TEXT')
+        .appendField(this.newQuote_(false));
+    this.setOutput(true, 'String');
+    this.setTooltip(function() {
+      return (thisBlock.getFieldValue('TYPE') == 'TEXT') ?
+          Blockly.Msg.TEXT_PROMPT_TOOLTIP_TEXT :
+          Blockly.Msg.TEXT_PROMPT_TOOLTIP_NUMBER;
+    });
+  },
+  newQuote_: Blockly.Blocks['text'].newQuote_,
+  updateType_: Blockly.Blocks['text_prompt_ext'].updateType_,
+  mutationToDom: Blockly.Blocks['text_prompt_ext'].mutationToDom,
+  domToMutation: Blockly.Blocks['text_prompt_ext'].domToMutation
+};