1 | // Porting from
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2 | // https://github.com/jeanlazarou/blockly2ruby
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3 | // Copyright (c) 2014 Jean Lazarou
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4 | // MIT Lisence
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5 | using System;
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6 | using Bridge;
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7 | using System.Collections.Generic;
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8 |
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9 | namespace WebMrbc
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10 | {
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11 | partial class Ruby
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12 | {
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13 | public node text(TextBlock block)
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14 | {
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15 | // Text value.
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16 | return new_str_node(block.getFieldValue("TEXT"));
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17 | }
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18 |
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19 | public node text_join(TextJoinBlock block)
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20 | {
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21 | // Create a string made up of any number of elements of any type.
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22 | if (block.itemCount_ == 0) {
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23 | return new str_node(this, "");
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24 | }
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25 | else if (block.itemCount_ == 1) {
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26 | var argument0 = valueToCode(block, "ADD0");
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27 | if (argument0 == null) argument0 = new str_node(this, "");
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28 | return new call_node(this, argument0, intern("to_s"));
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29 | }
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30 | else {
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31 | var argument0 = valueToCode(block, "ADD0");
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32 | if (argument0 == null)
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33 | argument0 = new str_node(this, "");
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34 | else
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35 | argument0 = new call_node(this, argument0, intern("to_s"));
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36 | for (var n = 1; n < block.itemCount_; n++) {
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37 | var argument1 = valueToCode(block, "ADD" + n);
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38 | if (argument1 == null)
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39 | argument1 = new str_node(this, "");
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40 | else
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41 | argument1 = new call_node(this, argument1, intern("to_s"));
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42 | argument0 = new call_node(this, argument0, intern("+"), argument1);
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43 | }
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44 | return argument0;
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45 | }
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46 | }
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47 |
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48 | public node text_append(TextAppendBlock block)
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49 | {
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50 | // Append to a variable in place.
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51 | var varName = get_var_name(block.getFieldValue("VAR"));
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52 | var argument0 = valueToCode(block, "TEXT");
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53 | if (argument0 == null)
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54 | argument0 = new str_node(this, "");
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55 | else
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56 | argument0 = new call_node(this, argument0, intern("to_s"));
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57 | var code = new call_node(this, new_var_node(varName), intern("to_s"));
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58 | code = new call_node(this, code, intern("+"), argument0);
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59 | return new asgn_node(this, new_var_node(varName), code);
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60 | }
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61 |
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62 | public node text_length(TextLengthBlock block)
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63 | {
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64 | // String length.
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65 | var argument0 = valueToCode(block, "VALUE");
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66 | if (argument0 == null) argument0 = new str_node(this, "");
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67 | return new call_node(this, argument0, intern("size"));
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68 | }
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69 |
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70 | public node text_isEmpty(TextIsEmptyBlock block)
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71 | {
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72 | // Is the string null?
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73 | var argument0 = valueToCode(block, "VALUE");
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74 | if (argument0 == null) argument0 = new str_node(this, "");
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75 | return new call_node(this, argument0, intern("empty?"));
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76 | }
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77 |
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78 | public node text_indexOf(TextIndexOfBlock block)
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79 | {
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80 | // Search the text for a substring.
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81 | // Should we allow for non-case sensitive???
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82 | var finder = block.getFieldValue("END") == "FIRST" ? "find_first" : "find_last";
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83 | var search = valueToCode(block, "FIND");
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84 | if (search == null) search = new str_node(this, "");
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85 | var text = valueToCode(block, "VALUE");
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86 | if (text == null) text = new str_node(this, "");
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87 | return new call_node(this, text, intern(finder), new node[] { search }, null);
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88 | }
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89 |
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90 | public node text_charAt(TextCharAtBlock block)
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91 | {
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92 | // Get letter at index.
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93 | // Note: Until January 2013 this block did not have the WHERE input.
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94 | var where = block.getFieldValue("WHERE");
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95 | if (String.IsNullOrEmpty(where)) where = "FROM_START";
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96 | var at = valueToCode(block, "AT");
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97 | if (at == null) at = new int_node(this, 1);
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98 | var text = valueToCode(block, "VALUE");
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99 | if (text == null) text = new str_node(this, "");
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100 |
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101 | // Blockly uses one-based indicies.
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102 | if (at is int_node) {
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103 | // If the index is a naked number, decrement it right now.
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104 | at = new int_node(this, (int)(((int_node)at).to_i() - 1));
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105 | }
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106 | else {
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107 | // If the index is dynamic, decrement it in code.
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108 | at = new call_node(this, at, intern("to_i"));
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109 | at = new call_node(this, at, intern("-"), new int_node(this, 1));
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110 | }
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111 |
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112 | switch (where) {
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113 | case "FIRST":
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114 | return new call_node(this, text, intern("[]"), new node[] { new int_node(this, 0) }, null);
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115 | case "LAST":
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116 | return new call_node(this, text, intern("[]"), new node[] { new int_node(this, -1) }, null);
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117 | case "FROM_START":
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118 | return new fcall_node(this, intern("text_get_from_start"), new node[] { text, at }, null);
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119 | case "FROM_END":
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120 | return new fcall_node(this, intern("text_get_from_end"), new node[] { text, at }, null);
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121 | case "RANDOM":
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122 | return new fcall_node(this, intern("text_random_letter"), new node[] { text }, null);
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123 | }
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124 | throw new Exception("Unhandled option (text_charAt).");
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125 | }
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126 |
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127 | public node text_getSubstring(TextGetSubstringBlock block)
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128 | {
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129 | // Get substring.
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130 | var text = valueToCode(block, "STRING");
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131 | if (text == null) text = new str_node(this, "");
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132 | var where1 = block.getFieldValue("WHERE1");
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133 | var where2 = block.getFieldValue("WHERE2");
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134 | var at1 = valueToCode(block, "AT1");
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135 | if (at1 == null) at1 = new int_node(this, 1);
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136 | var at2 = valueToCode(block, "AT2");
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137 | if (at2 == null) at2 = new int_node(this, 1);
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138 | if (where1 == "FIRST" || (where1 == "FROM_START" && at1 is int_node && ((int_node)at1).to_i() == 1)) {
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139 | at1 = new int_node(this, 0);
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140 | }
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141 | else if (where1 == "FROM_START") {
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142 | // Blockly uses one-based indicies.
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143 | if (at1 is int_node) {
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144 | // If the index is a naked number, decrement it right now.
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145 | at1 = new int_node(this, (int)(((int_node)at1).to_i() - 1));
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146 | }
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147 | else {
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148 | // If the index is dynamic, decrement it in code.
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149 | at1 = new call_node(this, at1, intern("to_i"));
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150 | at1 = new call_node(this, at1, intern("-"), new int_node(this, 1));
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151 | }
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152 | }
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153 | else if (where1 == "FROM_END") {
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154 | if (at1 is int_node) {
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155 | at1 = new int_node(this, (int)(-((int_node)at1).to_i()));
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156 | }
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157 | else {
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158 | at1 = new call_node(this, at1, intern("-@"), (node)null);
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159 | at1 = new call_node(this, at1, intern("to_i"));
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160 | }
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161 | }
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162 | if (where2 == "LAST" || (where2 == "FROM_END" && at2 is int_node && ((int_node)at2).to_i() == 1)) {
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163 | at2 = new int_node(this, -1);
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164 | }
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165 | else if (where2 == "FROM_START") {
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166 | if (at2 is int_node) {
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167 | at2 = new int_node(this, (int)(((int_node)at2).to_i() - 1));
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168 | }
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169 | else {
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170 | at2 = new call_node(this, at2, intern("to_i"));
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171 | at2 = new call_node(this, at2, intern("-"), new int_node(this, 1));
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172 | }
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173 | }
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174 | else if (where2 == "FROM_END") {
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175 | if (at2 is int_node) {
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176 | at2 = new int_node(this, (int)(-((int_node)at2).to_i()));
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177 | }
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178 | else {
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179 | at2 = new call_node(this, at2, intern("-@"), (node)null);
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180 | at2 = new call_node(this, at2, intern("to_i"));
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181 | }
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182 | }
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183 | var code = new dot2_node(this, at1, at2);
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184 | return new call_node(this, text, intern("[]"), new node[] { code }, null);
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185 | }
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186 |
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187 | public node text_changeCase(TextChangeCaseBlock block)
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188 | {
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189 | // Change capitalization.
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190 | var OPERATORS = new Dictionary<string, string>() {
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191 | { "UPPERCASE", "upcase" },
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192 | { "LOWERCASE", "downcase"},
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193 | { "TITLECASE", null }
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194 | };
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195 | node code;
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196 | var @operator = OPERATORS[block.getFieldValue("CASE")];
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197 | if (!String.IsNullOrEmpty(@operator)) {
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198 | @operator = OPERATORS[block.getFieldValue("CASE")];
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199 | var argument0 = valueToCode(block, "TEXT");
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200 | if (argument0 == null) argument0 = new str_node(this, "");
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201 | code = new call_node(this, argument0, intern(@operator));
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202 | }
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203 | else {
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204 | // Title case is not a native Ruby function. Define one.
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205 | var argument0 = valueToCode(block, "TEXT");
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206 | if (argument0 == null) argument0 = new str_node(this, "");
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207 | code = new fcall_node(this, intern("text_to_title_case"), new node[] { argument0 }, null);
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208 | }
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209 | return code;
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210 | }
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211 |
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212 | public node text_trim(TextTrimBlock block)
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213 | {
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214 | // Trim spaces.
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215 | var OPERATORS = new Dictionary<string, string>() {
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216 | { "LEFT", ".lstrip" },
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217 | { "RIGHT", ".rstrip"},
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218 | { "BOTH", ".strip" }
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219 | };
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220 | var @operator = OPERATORS[block.getFieldValue("MODE")];
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221 | var argument0 = valueToCode(block, "TEXT");
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222 | if (argument0 == null) argument0 = new str_node(this, "");
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223 | return new call_node(this, argument0, intern(@operator));
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224 | }
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225 |
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226 | public node text_print(TextPrintBlock block)
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227 | {
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228 | // Print statement.
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229 | var argument0 = valueToCode(block, "TEXT");
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230 | if (argument0 == null) argument0 = new str_node(this, "");
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231 | return new fcall_node(this, intern("blockly_puts"), new node[] { argument0 }, null);
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232 | }
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233 |
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234 | public node text_prompt(TextPromptBlock block)
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235 | {
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236 | // Prompt function.
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237 | var msg = new str_node(this, block.getFieldValue("TEXT"));
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238 | node code = new fcall_node(this, intern("text_prompt"), new node[] { msg }, null);
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239 | var toNumber = block.getFieldValue("TYPE") == "NUMBER";
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240 | if (toNumber) {
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241 | code = new call_node(this, code, intern("to_f"));
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242 | }
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243 | return code;
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244 | }
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245 | }
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246 | }
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