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b46a4fe286
* Google changed from an Inc to an LLC. This happened back in 2017 but we didn’t notice. Officially we should update files from Inc to LLC when they are changed as part of regular edits, but this is a nightmare to remember for the next decade. * Remove project description/titles from licenses This is no longer part of Google’s header requirements. Our existing descriptions were useless (“Visual Blocks Editor”) or grossly obselete (“Visual Blocks Language”). * License no longer requires URL. * Fix license regexps.
283 lines
10 KiB
JavaScript
283 lines
10 KiB
JavaScript
/**
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* @license
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* Copyright 2015 Google LLC
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/**
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* @fileoverview Generating PHP for text blocks.
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* @author daarond@gmail.com (Daaron Dwyer)
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*/
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'use strict';
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goog.provide('Blockly.PHP.texts');
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goog.require('Blockly.PHP');
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Blockly.PHP['text'] = function(block) {
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// Text value.
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var code = Blockly.PHP.quote_(block.getFieldValue('TEXT'));
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return [code, Blockly.PHP.ORDER_ATOMIC];
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};
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Blockly.PHP['text_multiline'] = function(block) {
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// Text value.
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var code = Blockly.PHP.multiline_quote_(block.getFieldValue('TEXT'));
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return [code, Blockly.PHP.ORDER_ATOMIC];
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};
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Blockly.PHP['text_join'] = function(block) {
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// Create a string made up of any number of elements of any type.
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if (block.itemCount_ == 0) {
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return ['\'\'', Blockly.PHP.ORDER_ATOMIC];
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} else if (block.itemCount_ == 1) {
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var element = Blockly.PHP.valueToCode(block, 'ADD0',
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Blockly.PHP.ORDER_NONE) || '\'\'';
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var code = element;
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return [code, Blockly.PHP.ORDER_FUNCTION_CALL];
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} else if (block.itemCount_ == 2) {
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var element0 = Blockly.PHP.valueToCode(block, 'ADD0',
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Blockly.PHP.ORDER_ATOMIC) || '\'\'';
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var element1 = Blockly.PHP.valueToCode(block, 'ADD1',
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Blockly.PHP.ORDER_ATOMIC) || '\'\'';
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var code = element0 + ' . ' + element1;
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return [code, Blockly.PHP.ORDER_STRING_CONCAT];
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} else {
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var elements = new Array(block.itemCount_);
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for (var i = 0; i < block.itemCount_; i++) {
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elements[i] = Blockly.PHP.valueToCode(block, 'ADD' + i,
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Blockly.PHP.ORDER_COMMA) || '\'\'';
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}
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var code = 'implode(\'\', array(' + elements.join(',') + '))';
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return [code, Blockly.PHP.ORDER_FUNCTION_CALL];
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}
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};
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Blockly.PHP['text_append'] = function(block) {
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// Append to a variable in place.
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var varName = Blockly.PHP.variableDB_.getName(
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block.getFieldValue('VAR'), Blockly.Variables.NAME_TYPE);
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var value = Blockly.PHP.valueToCode(block, 'TEXT',
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Blockly.PHP.ORDER_ASSIGNMENT) || '\'\'';
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return varName + ' .= ' + value + ';\n';
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};
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Blockly.PHP['text_length'] = function(block) {
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// String or array length.
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var functionName = Blockly.PHP.provideFunction_(
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'length',
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['function ' + Blockly.PHP.FUNCTION_NAME_PLACEHOLDER_ + '($value) {',
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' if (is_string($value)) {',
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' return strlen($value);',
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' } else {',
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' return count($value);',
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' }',
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'}']);
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var text = Blockly.PHP.valueToCode(block, 'VALUE',
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Blockly.PHP.ORDER_NONE) || '\'\'';
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return [functionName + '(' + text + ')', Blockly.PHP.ORDER_FUNCTION_CALL];
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};
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Blockly.PHP['text_isEmpty'] = function(block) {
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// Is the string null or array empty?
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var text = Blockly.PHP.valueToCode(block, 'VALUE',
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Blockly.PHP.ORDER_NONE) || '\'\'';
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return ['empty(' + text + ')', Blockly.PHP.ORDER_FUNCTION_CALL];
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};
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Blockly.PHP['text_indexOf'] = function(block) {
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// Search the text for a substring.
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var operator = block.getFieldValue('END') == 'FIRST' ?
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'strpos' : 'strrpos';
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var substring = Blockly.PHP.valueToCode(block, 'FIND',
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Blockly.PHP.ORDER_NONE) || '\'\'';
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var text = Blockly.PHP.valueToCode(block, 'VALUE',
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Blockly.PHP.ORDER_NONE) || '\'\'';
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if (block.workspace.options.oneBasedIndex) {
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var errorIndex = ' 0';
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var indexAdjustment = ' + 1';
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} else {
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var errorIndex = ' -1';
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var indexAdjustment = '';
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}
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var functionName = Blockly.PHP.provideFunction_(
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block.getFieldValue('END') == 'FIRST' ?
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'text_indexOf' : 'text_lastIndexOf',
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['function ' + Blockly.PHP.FUNCTION_NAME_PLACEHOLDER_ +
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'($text, $search) {',
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' $pos = ' + operator + '($text, $search);',
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' return $pos === false ? ' + errorIndex + ' : $pos' +
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indexAdjustment + ';',
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'}']);
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var code = functionName + '(' + text + ', ' + substring + ')';
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return [code, Blockly.PHP.ORDER_FUNCTION_CALL];
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};
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Blockly.PHP['text_charAt'] = function(block) {
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// Get letter at index.
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var where = block.getFieldValue('WHERE') || 'FROM_START';
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var textOrder = (where == 'RANDOM') ? Blockly.PHP.ORDER_NONE :
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Blockly.PHP.ORDER_COMMA;
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var text = Blockly.PHP.valueToCode(block, 'VALUE', textOrder) || '\'\'';
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switch (where) {
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case 'FIRST':
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var code = 'substr(' + text + ', 0, 1)';
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return [code, Blockly.PHP.ORDER_FUNCTION_CALL];
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case 'LAST':
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var code = 'substr(' + text + ', -1)';
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return [code, Blockly.PHP.ORDER_FUNCTION_CALL];
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case 'FROM_START':
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var at = Blockly.PHP.getAdjusted(block, 'AT');
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var code = 'substr(' + text + ', ' + at + ', 1)';
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return [code, Blockly.PHP.ORDER_FUNCTION_CALL];
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case 'FROM_END':
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var at = Blockly.PHP.getAdjusted(block, 'AT', 1, true);
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var code = 'substr(' + text + ', ' + at + ', 1)';
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return [code, Blockly.PHP.ORDER_FUNCTION_CALL];
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case 'RANDOM':
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var functionName = Blockly.PHP.provideFunction_(
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'text_random_letter',
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['function ' + Blockly.PHP.FUNCTION_NAME_PLACEHOLDER_ + '($text) {',
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' return $text[rand(0, strlen($text) - 1)];',
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'}']);
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code = functionName + '(' + text + ')';
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return [code, Blockly.PHP.ORDER_FUNCTION_CALL];
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}
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throw Error('Unhandled option (text_charAt).');
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};
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Blockly.PHP['text_getSubstring'] = function(block) {
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// Get substring.
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var text = Blockly.PHP.valueToCode(block, 'STRING',
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Blockly.PHP.ORDER_FUNCTION_CALL) || '\'\'';
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var where1 = block.getFieldValue('WHERE1');
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var where2 = block.getFieldValue('WHERE2');
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if (where1 == 'FIRST' && where2 == 'LAST') {
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var code = text;
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} else {
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var at1 = Blockly.PHP.getAdjusted(block, 'AT1');
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var at2 = Blockly.PHP.getAdjusted(block, 'AT2');
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var functionName = Blockly.PHP.provideFunction_(
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'text_get_substring',
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['function ' + Blockly.PHP.FUNCTION_NAME_PLACEHOLDER_ +
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'($text, $where1, $at1, $where2, $at2) {',
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' if ($where1 == \'FROM_END\') {',
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' $at1 = strlen($text) - 1 - $at1;',
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' } else if ($where1 == \'FIRST\') {',
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' $at1 = 0;',
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' } else if ($where1 != \'FROM_START\') {',
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' throw new Exception(\'Unhandled option (text_get_substring).\');',
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' }',
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' $length = 0;',
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' if ($where2 == \'FROM_START\') {',
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' $length = $at2 - $at1 + 1;',
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' } else if ($where2 == \'FROM_END\') {',
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' $length = strlen($text) - $at1 - $at2;',
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' } else if ($where2 == \'LAST\') {',
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' $length = strlen($text) - $at1;',
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' } else {',
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' throw new Exception(\'Unhandled option (text_get_substring).\');',
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' }',
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' return substr($text, $at1, $length);',
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'}']);
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var code = functionName + '(' + text + ', \'' +
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where1 + '\', ' + at1 + ', \'' + where2 + '\', ' + at2 + ')';
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}
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return [code, Blockly.PHP.ORDER_FUNCTION_CALL];
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};
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Blockly.PHP['text_changeCase'] = function(block) {
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// Change capitalization.
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var text = Blockly.PHP.valueToCode(block, 'TEXT',
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Blockly.PHP.ORDER_NONE) || '\'\'';
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if (block.getFieldValue('CASE') == 'UPPERCASE') {
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var code = 'strtoupper(' + text + ')';
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} else if (block.getFieldValue('CASE') == 'LOWERCASE') {
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var code = 'strtolower(' + text + ')';
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} else if (block.getFieldValue('CASE') == 'TITLECASE') {
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var code = 'ucwords(strtolower(' + text + '))';
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}
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return [code, Blockly.PHP.ORDER_FUNCTION_CALL];
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};
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Blockly.PHP['text_trim'] = function(block) {
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// Trim spaces.
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var OPERATORS = {
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'LEFT': 'ltrim',
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'RIGHT': 'rtrim',
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'BOTH': 'trim'
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};
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var operator = OPERATORS[block.getFieldValue('MODE')];
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var text = Blockly.PHP.valueToCode(block, 'TEXT',
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Blockly.PHP.ORDER_NONE) || '\'\'';
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return [operator + '(' + text + ')', Blockly.PHP.ORDER_FUNCTION_CALL];
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};
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Blockly.PHP['text_print'] = function(block) {
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// Print statement.
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var msg = Blockly.PHP.valueToCode(block, 'TEXT',
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Blockly.PHP.ORDER_NONE) || '\'\'';
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return 'print(' + msg + ');\n';
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};
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Blockly.PHP['text_prompt_ext'] = function(block) {
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// Prompt function.
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if (block.getField('TEXT')) {
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// Internal message.
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var msg = Blockly.PHP.quote_(block.getFieldValue('TEXT'));
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} else {
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// External message.
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var msg = Blockly.PHP.valueToCode(block, 'TEXT',
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Blockly.PHP.ORDER_NONE) || '\'\'';
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}
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var code = 'readline(' + msg + ')';
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var toNumber = block.getFieldValue('TYPE') == 'NUMBER';
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if (toNumber) {
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code = 'floatval(' + code + ')';
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}
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return [code, Blockly.PHP.ORDER_FUNCTION_CALL];
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};
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Blockly.PHP['text_prompt'] = Blockly.PHP['text_prompt_ext'];
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Blockly.PHP['text_count'] = function(block) {
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var text = Blockly.PHP.valueToCode(block, 'TEXT',
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Blockly.PHP.ORDER_MEMBER) || '\'\'';
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var sub = Blockly.PHP.valueToCode(block, 'SUB',
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Blockly.PHP.ORDER_NONE) || '\'\'';
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var code = 'strlen(' + sub + ') === 0'
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+ ' ? strlen(' + text + ') + 1'
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+ ' : substr_count(' + text + ', ' + sub + ')';
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return [code, Blockly.PHP.ORDER_CONDITIONAL];
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};
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Blockly.PHP['text_replace'] = function(block) {
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var text = Blockly.PHP.valueToCode(block, 'TEXT',
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Blockly.PHP.ORDER_MEMBER) || '\'\'';
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var from = Blockly.PHP.valueToCode(block, 'FROM',
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Blockly.PHP.ORDER_NONE) || '\'\'';
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var to = Blockly.PHP.valueToCode(block, 'TO',
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Blockly.PHP.ORDER_NONE) || '\'\'';
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var code = 'str_replace(' + from + ', ' + to + ', ' + text + ')';
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return [code, Blockly.PHP.ORDER_FUNCTION_CALL];
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};
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Blockly.PHP['text_reverse'] = function(block) {
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var text = Blockly.PHP.valueToCode(block, 'TEXT',
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Blockly.PHP.ORDER_MEMBER) || '\'\'';
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var code = 'strrev(' + text + ')';
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return [code, Blockly.PHP.ORDER_FUNCTION_CALL];
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};
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