mirror of
https://github.com/google/blockly.git
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4db047ff32
* chore: fix some missing requires in generators * chore: fix missing requires in dart block generators * chore: replace Blockly.isNumber with Blockly.utils.string.isNumber in generators * chore: fix more missing requires in block generators
512 lines
19 KiB
JavaScript
512 lines
19 KiB
JavaScript
/**
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* @license
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* Copyright 2015 Google LLC
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* SPDX-License-Identifier: Apache-2.0
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*/
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/**
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* @fileoverview Generating PHP for list blocks.
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* @suppress {missingRequire}
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*/
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/**
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* Lists in PHP are known to break when non-variables are passed into blocks
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* that require a list. PHP, unlike other languages, passes arrays as reference
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* value instead of value so we are unable to support it to the extent we can
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* for the other languages.
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* For example, a ternary operator with two arrays will return the array by
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* value and that cannot be passed into any of the built-in array functions for
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* PHP (because only variables can be passed by reference).
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* ex: end(true ? list1 : list2)
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*/
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'use strict';
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goog.provide('Blockly.PHP.lists');
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goog.require('Blockly.PHP');
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goog.require('Blockly.utils.string');
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Blockly.PHP['lists_create_empty'] = function(block) {
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// Create an empty list.
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return ['array()', Blockly.PHP.ORDER_FUNCTION_CALL];
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};
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Blockly.PHP['lists_create_with'] = function(block) {
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// Create a list with any number of elements of any type.
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let code = new Array(block.itemCount_);
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for (let i = 0; i < block.itemCount_; i++) {
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code[i] = Blockly.PHP.valueToCode(block, 'ADD' + i,
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Blockly.PHP.ORDER_NONE) || 'null';
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}
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code = 'array(' + code.join(', ') + ')';
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return [code, Blockly.PHP.ORDER_FUNCTION_CALL];
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};
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Blockly.PHP['lists_repeat'] = function(block) {
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// Create a list with one element repeated.
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const functionName = Blockly.PHP.provideFunction_(
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'lists_repeat',
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['function ' + Blockly.PHP.FUNCTION_NAME_PLACEHOLDER_ +
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'($value, $count) {',
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' $array = array();',
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' for ($index = 0; $index < $count; $index++) {',
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' $array[] = $value;',
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' }',
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' return $array;',
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'}']);
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const element = Blockly.PHP.valueToCode(block, 'ITEM',
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Blockly.PHP.ORDER_NONE) || 'null';
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const repeatCount = Blockly.PHP.valueToCode(block, 'NUM',
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Blockly.PHP.ORDER_NONE) || '0';
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const code = functionName + '(' + element + ', ' + repeatCount + ')';
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return [code, Blockly.PHP.ORDER_FUNCTION_CALL];
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};
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Blockly.PHP['lists_length'] = function(block) {
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// String or array length.
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const functionName = Blockly.PHP.provideFunction_(
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'length',
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['function ' + Blockly.PHP.FUNCTION_NAME_PLACEHOLDER_ + '($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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const list = Blockly.PHP.valueToCode(block, 'VALUE',
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Blockly.PHP.ORDER_NONE) || '\'\'';
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return [functionName + '(' + list + ')', Blockly.PHP.ORDER_FUNCTION_CALL];
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};
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Blockly.PHP['lists_isEmpty'] = function(block) {
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// Is the string null or array empty?
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const argument0 = Blockly.PHP.valueToCode(block, 'VALUE',
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Blockly.PHP.ORDER_FUNCTION_CALL) || 'array()';
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return ['empty(' + argument0 + ')', Blockly.PHP.ORDER_FUNCTION_CALL];
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};
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Blockly.PHP['lists_indexOf'] = function(block) {
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// Find an item in the list.
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const argument0 = Blockly.PHP.valueToCode(block, 'FIND',
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Blockly.PHP.ORDER_NONE) || '\'\'';
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const argument1 = Blockly.PHP.valueToCode(block, 'VALUE',
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Blockly.PHP.ORDER_MEMBER) || '[]';
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let errorIndex = ' -1';
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let indexAdjustment = '';
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if (block.workspace.options.oneBasedIndex) {
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errorIndex = ' 0';
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indexAdjustment = ' + 1';
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}
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let functionName;
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if (block.getFieldValue('END') === 'FIRST') {
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// indexOf
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functionName = Blockly.PHP.provideFunction_(
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'indexOf',
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['function ' + Blockly.PHP.FUNCTION_NAME_PLACEHOLDER_ +
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'($haystack, $needle) {',
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' for ($index = 0; $index < count($haystack); $index++) {',
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' if ($haystack[$index] == $needle) return $index' +
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indexAdjustment + ';',
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' }',
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' return ' + errorIndex + ';',
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'}']);
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} else {
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// lastIndexOf
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functionName = Blockly.PHP.provideFunction_(
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'lastIndexOf',
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['function ' + Blockly.PHP.FUNCTION_NAME_PLACEHOLDER_ +
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'($haystack, $needle) {',
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' $last = ' + errorIndex + ';',
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' for ($index = 0; $index < count($haystack); $index++) {',
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' if ($haystack[$index] == $needle) $last = $index' +
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indexAdjustment + ';',
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' }',
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' return $last;',
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'}']);
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}
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const code = functionName + '(' + argument1 + ', ' + argument0 + ')';
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return [code, Blockly.PHP.ORDER_FUNCTION_CALL];
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};
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Blockly.PHP['lists_getIndex'] = function(block) {
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// Get element at index.
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const mode = block.getFieldValue('MODE') || 'GET';
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const where = block.getFieldValue('WHERE') || 'FROM_START';
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switch (where) {
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case 'FIRST':
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if (mode === 'GET') {
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const list = Blockly.PHP.valueToCode(block, 'VALUE',
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Blockly.PHP.ORDER_MEMBER) || 'array()';
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const code = list + '[0]';
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return [code, Blockly.PHP.ORDER_MEMBER];
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} else if (mode === 'GET_REMOVE') {
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const list = Blockly.PHP.valueToCode(block, 'VALUE',
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Blockly.PHP.ORDER_NONE) || 'array()';
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const code = 'array_shift(' + list + ')';
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return [code, Blockly.PHP.ORDER_FUNCTION_CALL];
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} else if (mode === 'REMOVE') {
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const list = Blockly.PHP.valueToCode(block, 'VALUE',
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Blockly.PHP.ORDER_NONE) || 'array()';
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return 'array_shift(' + list + ');\n';
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}
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break;
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case 'LAST':
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if (mode === 'GET') {
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const list = Blockly.PHP.valueToCode(block, 'VALUE',
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Blockly.PHP.ORDER_NONE) || 'array()';
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const code = 'end(' + list + ')';
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return [code, Blockly.PHP.ORDER_FUNCTION_CALL];
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} else if (mode === 'GET_REMOVE') {
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const list = Blockly.PHP.valueToCode(block, 'VALUE',
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Blockly.PHP.ORDER_NONE) || 'array()';
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const code = 'array_pop(' + list + ')';
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return [code, Blockly.PHP.ORDER_FUNCTION_CALL];
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} else if (mode === 'REMOVE') {
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const list = Blockly.PHP.valueToCode(block, 'VALUE',
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Blockly.PHP.ORDER_NONE) || 'array()';
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return 'array_pop(' + list + ');\n';
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}
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break;
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case 'FROM_START': {
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const at = Blockly.PHP.getAdjusted(block, 'AT');
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if (mode === 'GET') {
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const list = Blockly.PHP.valueToCode(block, 'VALUE',
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Blockly.PHP.ORDER_MEMBER) || 'array()';
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const code = list + '[' + at + ']';
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return [code, Blockly.PHP.ORDER_MEMBER];
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} else if (mode === 'GET_REMOVE') {
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const list = Blockly.PHP.valueToCode(block, 'VALUE',
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Blockly.PHP.ORDER_NONE) || 'array()';
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const code = 'array_splice(' + list + ', ' + at + ', 1)[0]';
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return [code, Blockly.PHP.ORDER_FUNCTION_CALL];
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} else if (mode === 'REMOVE') {
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const list = Blockly.PHP.valueToCode(block, 'VALUE',
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Blockly.PHP.ORDER_NONE) || 'array()';
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return 'array_splice(' + list + ', ' + at + ', 1);\n';
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}
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break;
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}
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case 'FROM_END':
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if (mode === 'GET') {
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const list = Blockly.PHP.valueToCode(block, 'VALUE',
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Blockly.PHP.ORDER_NONE) || 'array()';
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const at = Blockly.PHP.getAdjusted(block, 'AT', 1, true);
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const code = 'array_slice(' + list + ', ' + at + ', 1)[0]';
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return [code, Blockly.PHP.ORDER_FUNCTION_CALL];
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} else if (mode === 'GET_REMOVE' || mode === 'REMOVE') {
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const list = Blockly.PHP.valueToCode(block, 'VALUE',
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Blockly.PHP.ORDER_NONE) || 'array()';
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const at = Blockly.PHP.getAdjusted(block, 'AT', 1, false,
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Blockly.PHP.ORDER_SUBTRACTION);
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const code = 'array_splice(' + list +
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', count(' + list + ') - ' + at + ', 1)[0]';
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if (mode === 'GET_REMOVE') {
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return [code, Blockly.PHP.ORDER_FUNCTION_CALL];
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} else if (mode === 'REMOVE') {
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return code + ';\n';
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}
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}
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break;
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case 'RANDOM': {
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const list = Blockly.PHP.valueToCode(block, 'VALUE',
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Blockly.PHP.ORDER_NONE) || 'array()';
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if (mode === 'GET') {
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const functionName = Blockly.PHP.provideFunction_(
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'lists_get_random_item',
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['function ' + Blockly.PHP.FUNCTION_NAME_PLACEHOLDER_ +
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'($list) {',
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' return $list[rand(0,count($list)-1)];',
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'}']);
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const code = functionName + '(' + list + ')';
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return [code, Blockly.PHP.ORDER_FUNCTION_CALL];
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} else if (mode === 'GET_REMOVE') {
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const functionName = Blockly.PHP.provideFunction_(
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'lists_get_remove_random_item',
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['function ' + Blockly.PHP.FUNCTION_NAME_PLACEHOLDER_ +
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'(&$list) {',
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' $x = rand(0,count($list)-1);',
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' unset($list[$x]);',
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' return array_values($list);',
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'}']);
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const code = functionName + '(' + list + ')';
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return [code, Blockly.PHP.ORDER_FUNCTION_CALL];
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} else if (mode === 'REMOVE') {
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const functionName = Blockly.PHP.provideFunction_(
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'lists_remove_random_item',
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['function ' + Blockly.PHP.FUNCTION_NAME_PLACEHOLDER_ +
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'(&$list) {',
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' unset($list[rand(0,count($list)-1)]);',
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'}']);
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return functionName + '(' + list + ');\n';
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}
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break;
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}
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}
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throw Error('Unhandled combination (lists_getIndex).');
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};
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Blockly.PHP['lists_setIndex'] = function(block) {
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// Set element at index.
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// Note: Until February 2013 this block did not have MODE or WHERE inputs.
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const mode = block.getFieldValue('MODE') || 'GET';
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const where = block.getFieldValue('WHERE') || 'FROM_START';
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const value = Blockly.PHP.valueToCode(block, 'TO',
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Blockly.PHP.ORDER_ASSIGNMENT) || 'null';
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// Cache non-trivial values to variables to prevent repeated look-ups.
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// Closure, which accesses and modifies 'list'.
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let cachedList;
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function cacheList() {
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if (cachedList.match(/^\$\w+$/)) {
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return '';
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}
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const listVar = Blockly.PHP.nameDB_.getDistinctName(
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'tmp_list', Blockly.VARIABLE_CATEGORY_NAME);
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const code = listVar + ' = &' + cachedList + ';\n';
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cachedList = listVar;
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return code;
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}
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switch (where) {
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case 'FIRST':
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if (mode === 'SET') {
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const list = Blockly.PHP.valueToCode(block, 'LIST',
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Blockly.PHP.ORDER_MEMBER) || 'array()';
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return list + '[0] = ' + value + ';\n';
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} else if (mode === 'INSERT') {
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const list = Blockly.PHP.valueToCode(block, 'LIST',
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Blockly.PHP.ORDER_NONE) || 'array()';
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return 'array_unshift(' + list + ', ' + value + ');\n';
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}
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break;
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case 'LAST': {
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const list = Blockly.PHP.valueToCode(block, 'LIST',
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Blockly.PHP.ORDER_NONE) || 'array()';
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if (mode === 'SET') {
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const functionName = Blockly.PHP.provideFunction_(
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'lists_set_last_item',
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['function ' + Blockly.PHP.FUNCTION_NAME_PLACEHOLDER_ +
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'(&$list, $value) {',
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' $list[count($list) - 1] = $value;',
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'}']);
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return functionName + '(' + list + ', ' + value + ');\n';
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} else if (mode === 'INSERT') {
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return 'array_push(' + list + ', ' + value + ');\n';
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}
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break;
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}
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case 'FROM_START': {
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const at = Blockly.PHP.getAdjusted(block, 'AT');
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if (mode === 'SET') {
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const list = Blockly.PHP.valueToCode(block, 'LIST',
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Blockly.PHP.ORDER_MEMBER) || 'array()';
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return list + '[' + at + '] = ' + value + ';\n';
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} else if (mode === 'INSERT') {
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const list = Blockly.PHP.valueToCode(block, 'LIST',
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Blockly.PHP.ORDER_NONE) || 'array()';
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return 'array_splice(' + list + ', ' + at + ', 0, ' + value + ');\n';
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}
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break;
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}
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case 'FROM_END': {
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const list = Blockly.PHP.valueToCode(block, 'LIST',
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Blockly.PHP.ORDER_NONE) || 'array()';
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const at = Blockly.PHP.getAdjusted(block, 'AT', 1);
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if (mode === 'SET') {
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const functionName = Blockly.PHP.provideFunction_(
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'lists_set_from_end',
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['function ' + Blockly.PHP.FUNCTION_NAME_PLACEHOLDER_ +
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'(&$list, $at, $value) {',
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' $list[count($list) - $at] = $value;',
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'}']);
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return functionName + '(' + list + ', ' + at + ', ' + value + ');\n';
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} else if (mode === 'INSERT') {
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const functionName = Blockly.PHP.provideFunction_(
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'lists_insert_from_end',
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['function ' + Blockly.PHP.FUNCTION_NAME_PLACEHOLDER_ +
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'(&$list, $at, $value) {',
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' return array_splice($list, count($list) - $at, 0, $value);',
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'}']);
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return functionName + '(' + list + ', ' + at + ', ' + value + ');\n';
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}
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break;
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}
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case 'RANDOM':
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cachedList = Blockly.PHP.valueToCode(block, 'LIST',
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Blockly.PHP.ORDER_REFERENCE) || 'array()';
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let code = cacheList();
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const list = cachedList;
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const xVar = Blockly.PHP.nameDB_.getDistinctName(
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'tmp_x', Blockly.VARIABLE_CATEGORY_NAME);
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code += xVar + ' = rand(0, count(' + list + ')-1);\n';
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if (mode === 'SET') {
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code += list + '[' + xVar + '] = ' + value + ';\n';
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return code;
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} else if (mode === 'INSERT') {
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code += 'array_splice(' + list + ', ' + xVar + ', 0, ' + value +
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');\n';
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return code;
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}
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break;
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}
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throw Error('Unhandled combination (lists_setIndex).');
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};
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Blockly.PHP['lists_getSublist'] = function(block) {
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// Get sublist.
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const list = Blockly.PHP.valueToCode(block, 'LIST',
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Blockly.PHP.ORDER_NONE) || 'array()';
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const where1 = block.getFieldValue('WHERE1');
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const where2 = block.getFieldValue('WHERE2');
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let code;
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if (where1 === 'FIRST' && where2 === 'LAST') {
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code = list;
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} else if (list.match(/^\$\w+$/) ||
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(where1 !== 'FROM_END' && where2 === 'FROM_START')) {
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// If the list is a simple value or doesn't require a call for length, don't
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// generate a helper function.
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let at1;
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switch (where1) {
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case 'FROM_START':
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at1 = Blockly.PHP.getAdjusted(block, 'AT1');
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break;
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case 'FROM_END':
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at1 = Blockly.PHP.getAdjusted(block, 'AT1', 1, false,
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Blockly.PHP.ORDER_SUBTRACTION);
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at1 = 'count(' + list + ') - ' + at1;
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break;
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case 'FIRST':
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at1 = '0';
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break;
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default:
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throw Error('Unhandled option (lists_getSublist).');
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}
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let at2;
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let length;
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switch (where2) {
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case 'FROM_START':
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at2 = Blockly.PHP.getAdjusted(block, 'AT2', 0, false,
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Blockly.PHP.ORDER_SUBTRACTION);
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length = at2 + ' - ';
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if (Blockly.utils.string.isNumber(String(at1)) || String(at1).match(/^\(.+\)$/)) {
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length += at1;
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} else {
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length += '(' + at1 + ')';
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}
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length += ' + 1';
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break;
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case 'FROM_END':
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at2 = Blockly.PHP.getAdjusted(block, 'AT2', 0, false,
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Blockly.PHP.ORDER_SUBTRACTION);
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length = 'count(' + list + ') - ' + at2 + ' - ';
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if (Blockly.utils.string.isNumber(String(at1)) || String(at1).match(/^\(.+\)$/)) {
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length += at1;
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} else {
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length += '(' + at1 + ')';
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}
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break;
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case 'LAST':
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length = 'count(' + list + ') - ';
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if (Blockly.utils.string.isNumber(String(at1)) || String(at1).match(/^\(.+\)$/)) {
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length += at1;
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} else {
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length += '(' + at1 + ')';
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}
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break;
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default:
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throw Error('Unhandled option (lists_getSublist).');
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}
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code = 'array_slice(' + list + ', ' + at1 + ', ' + length + ')';
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} else {
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const at1 = Blockly.PHP.getAdjusted(block, 'AT1');
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const at2 = Blockly.PHP.getAdjusted(block, 'AT2');
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const functionName = Blockly.PHP.provideFunction_(
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'lists_get_sublist',
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['function ' + Blockly.PHP.FUNCTION_NAME_PLACEHOLDER_ +
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'($list, $where1, $at1, $where2, $at2) {',
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' if ($where1 == \'FROM_END\') {',
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' $at1 = count($list) - 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 (lists_get_sublist).\');',
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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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' $length = count($list) - $at1 - $at2;',
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' } else if ($where2 == \'LAST\') {',
|
|
' $length = count($list) - $at1;',
|
|
' } else {',
|
|
' throw new Exception(\'Unhandled option (lists_get_sublist).\');',
|
|
' }',
|
|
' return array_slice($list, $at1, $length);',
|
|
'}']);
|
|
code = functionName + '(' + list + ', \'' +
|
|
where1 + '\', ' + at1 + ', \'' + where2 + '\', ' + at2 + ')';
|
|
}
|
|
return [code, Blockly.PHP.ORDER_FUNCTION_CALL];
|
|
};
|
|
|
|
Blockly.PHP['lists_sort'] = function(block) {
|
|
// Block for sorting a list.
|
|
const listCode = Blockly.PHP.valueToCode(block, 'LIST',
|
|
Blockly.PHP.ORDER_NONE) || 'array()';
|
|
const direction = block.getFieldValue('DIRECTION') === '1' ? 1 : -1;
|
|
const type = block.getFieldValue('TYPE');
|
|
const functionName = Blockly.PHP.provideFunction_(
|
|
'lists_sort',
|
|
['function ' + Blockly.PHP.FUNCTION_NAME_PLACEHOLDER_ +
|
|
'($list, $type, $direction) {',
|
|
' $sortCmpFuncs = array(',
|
|
' "NUMERIC" => "strnatcasecmp",',
|
|
' "TEXT" => "strcmp",',
|
|
' "IGNORE_CASE" => "strcasecmp"',
|
|
' );',
|
|
' $sortCmp = $sortCmpFuncs[$type];',
|
|
' $list2 = $list;', // Clone list.
|
|
' usort($list2, $sortCmp);',
|
|
' if ($direction == -1) {',
|
|
' $list2 = array_reverse($list2);',
|
|
' }',
|
|
' return $list2;',
|
|
'}']);
|
|
const sortCode = functionName +
|
|
'(' + listCode + ', "' + type + '", ' + direction + ')';
|
|
return [sortCode, Blockly.PHP.ORDER_FUNCTION_CALL];
|
|
};
|
|
|
|
Blockly.PHP['lists_split'] = function(block) {
|
|
// Block for splitting text into a list, or joining a list into text.
|
|
let value_input = Blockly.PHP.valueToCode(block, 'INPUT',
|
|
Blockly.PHP.ORDER_NONE);
|
|
const value_delim = Blockly.PHP.valueToCode(block, 'DELIM',
|
|
Blockly.PHP.ORDER_NONE) || '\'\'';
|
|
const mode = block.getFieldValue('MODE');
|
|
let functionName;
|
|
if (mode === 'SPLIT') {
|
|
if (!value_input) {
|
|
value_input = '\'\'';
|
|
}
|
|
functionName = 'explode';
|
|
} else if (mode === 'JOIN') {
|
|
if (!value_input) {
|
|
value_input = 'array()';
|
|
}
|
|
functionName = 'implode';
|
|
} else {
|
|
throw Error('Unknown mode: ' + mode);
|
|
}
|
|
const code = functionName + '(' + value_delim + ', ' + value_input + ')';
|
|
return [code, Blockly.PHP.ORDER_FUNCTION_CALL];
|
|
};
|
|
|
|
Blockly.PHP['lists_reverse'] = function(block) {
|
|
// Block for reversing a list.
|
|
const list = Blockly.PHP.valueToCode(block, 'LIST',
|
|
Blockly.PHP.ORDER_NONE) || '[]';
|
|
const code = 'array_reverse(' + list + ')';
|
|
return [code, Blockly.PHP.ORDER_FUNCTION_CALL];
|
|
};
|