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1f6a1bd8d9
* Unindent CSS, save 3 kb of code. * Convert generator functions to template strings. This resolves #5761.
256 lines
8.4 KiB
JavaScript
256 lines
8.4 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 text blocks.
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*/
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'use strict';
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goog.module('Blockly.PHP.texts');
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const PHP = goog.require('Blockly.PHP');
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const {NameType} = goog.require('Blockly.Names');
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PHP['text'] = function(block) {
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// Text value.
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const code = PHP.quote_(block.getFieldValue('TEXT'));
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return [code, PHP.ORDER_ATOMIC];
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};
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PHP['text_multiline'] = function(block) {
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// Text value.
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const code = PHP.multiline_quote_(block.getFieldValue('TEXT'));
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const order =
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code.indexOf('.') !== -1 ? PHP.ORDER_STRING_CONCAT : PHP.ORDER_ATOMIC;
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return [code, order];
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};
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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 ["''", PHP.ORDER_ATOMIC];
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} else if (block.itemCount_ === 1) {
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const element = PHP.valueToCode(block, 'ADD0', PHP.ORDER_NONE) || "''";
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const code = element;
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return [code, PHP.ORDER_NONE];
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} else if (block.itemCount_ === 2) {
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const element0 =
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PHP.valueToCode(block, 'ADD0', PHP.ORDER_STRING_CONCAT) || "''";
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const element1 =
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PHP.valueToCode(block, 'ADD1', PHP.ORDER_STRING_CONCAT) || "''";
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const code = element0 + ' . ' + element1;
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return [code, PHP.ORDER_STRING_CONCAT];
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} else {
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const elements = new Array(block.itemCount_);
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for (let i = 0; i < block.itemCount_; i++) {
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elements[i] = PHP.valueToCode(block, 'ADD' + i, PHP.ORDER_NONE) || "''";
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}
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const code = 'implode(\'\', array(' + elements.join(',') + '))';
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return [code, PHP.ORDER_FUNCTION_CALL];
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}
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};
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PHP['text_append'] = function(block) {
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// Append to a variable in place.
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const varName =
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PHP.nameDB_.getName(block.getFieldValue('VAR'), NameType.VARIABLE);
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const value = PHP.valueToCode(block, 'TEXT', PHP.ORDER_ASSIGNMENT) || "''";
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return varName + ' .= ' + value + ';\n';
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};
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PHP['text_length'] = function(block) {
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// String or array length.
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const functionName = PHP.provideFunction_('length', `
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function ${PHP.FUNCTION_NAME_PLACEHOLDER_}($value) {
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if (is_string($value)) {
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return strlen($value);
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}
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return count($value);
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}
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`);
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const text = PHP.valueToCode(block, 'VALUE', PHP.ORDER_NONE) || "''";
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return [functionName + '(' + text + ')', PHP.ORDER_FUNCTION_CALL];
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};
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PHP['text_isEmpty'] = function(block) {
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// Is the string null or array empty?
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const text = PHP.valueToCode(block, 'VALUE', PHP.ORDER_NONE) || "''";
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return ['empty(' + text + ')', PHP.ORDER_FUNCTION_CALL];
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};
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PHP['text_indexOf'] = function(block) {
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// Search the text for a substring.
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const operator =
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block.getFieldValue('END') === 'FIRST' ? 'strpos' : 'strrpos';
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const substring = PHP.valueToCode(block, 'FIND', PHP.ORDER_NONE) || "''";
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const text = PHP.valueToCode(block, 'VALUE', PHP.ORDER_NONE) || "''";
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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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const functionName = PHP.provideFunction_(
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block.getFieldValue('END') === 'FIRST' ? 'text_indexOf' :
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'text_lastIndexOf',
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`
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function ${PHP.FUNCTION_NAME_PLACEHOLDER_}($text, $search) {
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$pos = ${operator}($text, $search);
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return $pos === false ? ${errorIndex} : $pos${indexAdjustment};
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}
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`);
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const code = functionName + '(' + text + ', ' + substring + ')';
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return [code, PHP.ORDER_FUNCTION_CALL];
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};
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PHP['text_charAt'] = function(block) {
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// Get letter at index.
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const where = block.getFieldValue('WHERE') || 'FROM_START';
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const textOrder = (where === 'RANDOM') ? PHP.ORDER_NONE : PHP.ORDER_NONE;
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const text = PHP.valueToCode(block, 'VALUE', textOrder) || "''";
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switch (where) {
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case 'FIRST': {
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const code = 'substr(' + text + ', 0, 1)';
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return [code, PHP.ORDER_FUNCTION_CALL];
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}
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case 'LAST': {
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const code = 'substr(' + text + ', -1)';
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return [code, PHP.ORDER_FUNCTION_CALL];
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}
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case 'FROM_START': {
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const at = PHP.getAdjusted(block, 'AT');
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const code = 'substr(' + text + ', ' + at + ', 1)';
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return [code, PHP.ORDER_FUNCTION_CALL];
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}
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case 'FROM_END': {
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const at = PHP.getAdjusted(block, 'AT', 1, true);
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const code = 'substr(' + text + ', ' + at + ', 1)';
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return [code, PHP.ORDER_FUNCTION_CALL];
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}
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case 'RANDOM': {
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const functionName = PHP.provideFunction_('text_random_letter', `
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function ${PHP.FUNCTION_NAME_PLACEHOLDER_}($text) {
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return $text[rand(0, strlen($text) - 1)];
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}
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`);
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const code = functionName + '(' + text + ')';
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return [code, PHP.ORDER_FUNCTION_CALL];
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}
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}
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throw Error('Unhandled option (text_charAt).');
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};
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PHP['text_getSubstring'] = function(block) {
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// Get substring.
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const where1 = block.getFieldValue('WHERE1');
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const where2 = block.getFieldValue('WHERE2');
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const text = PHP.valueToCode(block, 'STRING', PHP.ORDER_NONE) || "''";
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if (where1 === 'FIRST' && where2 === 'LAST') {
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const code = text;
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return [code, PHP.ORDER_NONE];
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} else {
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const at1 = PHP.getAdjusted(block, 'AT1');
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const at2 = PHP.getAdjusted(block, 'AT2');
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const functionName = PHP.provideFunction_('text_get_substring', `
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function ${PHP.FUNCTION_NAME_PLACEHOLDER_}($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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`);
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const code = functionName + '(' + text + ', \'' + where1 + '\', ' + at1 +
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', \'' + where2 + '\', ' + at2 + ')';
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return [code, PHP.ORDER_FUNCTION_CALL];
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}
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};
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PHP['text_changeCase'] = function(block) {
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// Change capitalization.
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const text = PHP.valueToCode(block, 'TEXT', PHP.ORDER_NONE) || "''";
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let code;
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if (block.getFieldValue('CASE') === 'UPPERCASE') {
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code = 'strtoupper(' + text + ')';
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} else if (block.getFieldValue('CASE') === 'LOWERCASE') {
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code = 'strtolower(' + text + ')';
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} else if (block.getFieldValue('CASE') === 'TITLECASE') {
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code = 'ucwords(strtolower(' + text + '))';
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}
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return [code, PHP.ORDER_FUNCTION_CALL];
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};
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PHP['text_trim'] = function(block) {
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// Trim spaces.
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const OPERATORS = {'LEFT': 'ltrim', 'RIGHT': 'rtrim', 'BOTH': 'trim'};
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const operator = OPERATORS[block.getFieldValue('MODE')];
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const text = PHP.valueToCode(block, 'TEXT', PHP.ORDER_NONE) || "''";
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return [operator + '(' + text + ')', PHP.ORDER_FUNCTION_CALL];
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};
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PHP['text_print'] = function(block) {
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// Print statement.
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const msg = PHP.valueToCode(block, 'TEXT', PHP.ORDER_NONE) || "''";
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return 'print(' + msg + ');\n';
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};
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PHP['text_prompt_ext'] = function(block) {
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// Prompt function.
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let msg;
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if (block.getField('TEXT')) {
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// Internal message.
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msg = PHP.quote_(block.getFieldValue('TEXT'));
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} else {
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// External message.
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msg = PHP.valueToCode(block, 'TEXT', PHP.ORDER_NONE) || "''";
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}
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let code = 'readline(' + msg + ')';
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const 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, PHP.ORDER_FUNCTION_CALL];
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};
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PHP['text_prompt'] = PHP['text_prompt_ext'];
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PHP['text_count'] = function(block) {
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const text = PHP.valueToCode(block, 'TEXT', PHP.ORDER_NONE) || "''";
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const sub = PHP.valueToCode(block, 'SUB', PHP.ORDER_NONE) || "''";
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const 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, PHP.ORDER_CONDITIONAL];
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};
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PHP['text_replace'] = function(block) {
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const text = PHP.valueToCode(block, 'TEXT', PHP.ORDER_NONE) || "''";
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const from = PHP.valueToCode(block, 'FROM', PHP.ORDER_NONE) || "''";
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const to = PHP.valueToCode(block, 'TO', PHP.ORDER_NONE) || "''";
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const code = 'str_replace(' + from + ', ' + to + ', ' + text + ')';
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return [code, PHP.ORDER_FUNCTION_CALL];
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};
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PHP['text_reverse'] = function(block) {
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const text = PHP.valueToCode(block, 'TEXT', PHP.ORDER_NONE) || "''";
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const code = 'strrev(' + text + ')';
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return [code, PHP.ORDER_FUNCTION_CALL];
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};
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