1 | /*
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2 | * 7/28/2009
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3 | *
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4 | * DelphiTokenMaker.java - Scanner for the Delphi programming language.
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5 | *
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6 | * This library is distributed under a modified BSD license. See the included
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7 | * RSyntaxTextArea.License.txt file for details.
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8 | */
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9 | package org.fife.ui.rsyntaxtextarea.modes;
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10 |
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11 | import java.io.*;
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12 | import javax.swing.text.Segment;
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13 |
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14 | import org.fife.ui.rsyntaxtextarea.*;
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15 |
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16 |
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17 | /**
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18 | * Scanner for the Delphi programming language.<p>
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19 | *
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20 | * This implementation was created using
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21 | * <a href="http://www.jflex.de/">JFlex</a> 1.4.1; however, the generated file
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22 | * was modified for performance. Memory allocation needs to be almost
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23 | * completely removed to be competitive with the handwritten lexers (subclasses
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24 | * of <code>AbstractTokenMaker</code>, so this class has been modified so that
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25 | * Strings are never allocated (via yytext()), and the scanner never has to
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26 | * worry about refilling its buffer (needlessly copying chars around).
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27 | * We can achieve this because RText always scans exactly 1 line of tokens at a
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28 | * time, and hands the scanner this line as an array of characters (a Segment
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29 | * really). Since tokens contain pointers to char arrays instead of Strings
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30 | * holding their contents, there is no need for allocating new memory for
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31 | * Strings.<p>
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32 | *
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33 | * The actual algorithm generated for scanning has, of course, not been
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34 | * modified.<p>
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35 | *
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36 | * If you wish to regenerate this file yourself, keep in mind the following:
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37 | * <ul>
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38 | * <li>The generated DelphiTokenMaker.java</code> file will contain two
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39 | * definitions of both <code>zzRefill</code> and <code>yyreset</code>.
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40 | * You should hand-delete the second of each definition (the ones
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41 | * generated by the lexer), as these generated methods modify the input
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42 | * buffer, which we'll never have to do.</li>
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43 | * <li>You should also change the declaration/definition of zzBuffer to NOT
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44 | * be initialized. This is a needless memory allocation for us since we
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45 | * will be pointing the array somewhere else anyway.</li>
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46 | * <li>You should NOT call <code>yylex()</code> on the generated scanner
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47 | * directly; rather, you should use <code>getTokenList</code> as you would
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48 | * with any other <code>TokenMaker</code> instance.</li>
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49 | * </ul>
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50 | *
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51 | * @author Robert Futrell
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52 | * @version 0.5
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53 | *
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54 | */
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55 | %%
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56 |
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57 | %public
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58 | %class DelphiTokenMaker
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59 | %extends AbstractJFlexTokenMaker
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60 | %unicode
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61 | %type org.fife.ui.rsyntaxtextarea.Token
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62 |
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63 |
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64 | %{
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65 |
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66 |
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67 | /**
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68 | * Token type specific to DelphiTokenMaker; denotes a line ending
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69 | * with an unterminated "(*" comment.
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70 | */
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71 | public static final int INTERNAL_MLC2 = -1;
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72 |
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73 | /**
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74 | * Token type specific to DelphiTokenMaker; denotes a line ending
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75 | * with an unterminated "{$" compiler directive.
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76 | */
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77 | public static final int INTERNAL_COMPILER_DIRECTIVE = -2;
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78 |
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79 | /**
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80 | * Token type specific to DelphiTokenMaker; denotes a line ending
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81 | * with an unterminated "(*$" compiler directive.
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82 | */
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83 | public static final int INTERNAL_COMPILER_DIRECTIVE2 = -3;
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84 |
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85 |
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86 | /**
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87 | * Constructor. This must be here because JFlex does not generate a
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88 | * no-parameter constructor.
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89 | */
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90 | public DelphiTokenMaker() {
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91 | }
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92 |
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93 |
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94 | /**
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95 | * Adds the token specified to the current linked list of tokens as an
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96 | * "end token;" that is, at <code>zzMarkedPos</code>.
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97 | *
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98 | * @param tokenType The token's type.
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99 | */
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100 | private void addEndToken(int tokenType) {
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101 | addToken(zzMarkedPos,zzMarkedPos, tokenType);
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102 | }
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103 |
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104 |
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105 | /**
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106 | * Adds the token specified to the current linked list of tokens.
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107 | *
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108 | * @param tokenType The token's type.
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109 | * @see #addToken(int, int, int)
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110 | */
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111 | private void addHyperlinkToken(int start, int end, int tokenType) {
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112 | int so = start + offsetShift;
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113 | addToken(zzBuffer, start,end, tokenType, so, true);
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114 | }
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115 |
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116 |
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117 | /**
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118 | * Adds the token specified to the current linked list of tokens.
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119 | *
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120 | * @param tokenType The token's type.
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121 | */
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122 | private void addToken(int tokenType) {
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123 | addToken(zzStartRead, zzMarkedPos-1, tokenType);
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124 | }
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125 |
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126 |
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127 | /**
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128 | * Adds the token specified to the current linked list of tokens.
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129 | *
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130 | * @param tokenType The token's type.
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131 | * @see #addHyperlinkToken(int, int, int)
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132 | */
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133 | private void addToken(int start, int end, int tokenType) {
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134 | int so = start + offsetShift;
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135 | addToken(zzBuffer, start,end, tokenType, so, false);
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136 | }
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137 |
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138 |
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139 | /**
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140 | * Adds the token specified to the current linked list of tokens.
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141 | *
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142 | * @param array The character array.
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143 | * @param start The starting offset in the array.
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144 | * @param end The ending offset in the array.
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145 | * @param tokenType The token's type.
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146 | * @param startOffset The offset in the document at which this token
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147 | * occurs.
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148 | * @param hyperlink Whether this token is a hyperlink.
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149 | */
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150 | public void addToken(char[] array, int start, int end, int tokenType,
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151 | int startOffset, boolean hyperlink) {
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152 | super.addToken(array, start,end, tokenType, startOffset, hyperlink);
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153 | zzStartRead = zzMarkedPos;
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154 | }
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155 |
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156 |
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157 | /**
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158 | * Returns the text to place at the beginning and end of a
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159 | * line to "comment" it in a this programming language.
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160 | *
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161 | * @return The start and end strings to add to a line to "comment"
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162 | * it out.
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163 | */
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164 | public String[] getLineCommentStartAndEnd() {
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165 | return new String[] { "//", null };
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166 | }
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167 |
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168 |
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169 | /**
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170 | * Returns the first token in the linked list of tokens generated
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171 | * from <code>text</code>. This method must be implemented by
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172 | * subclasses so they can correctly implement syntax highlighting.
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173 | *
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174 | * @param text The text from which to get tokens.
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175 | * @param initialTokenType The token type we should start with.
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176 | * @param startOffset The offset into the document at which
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177 | * <code>text</code> starts.
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178 | * @return The first <code>Token</code> in a linked list representing
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179 | * the syntax highlighted text.
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180 | */
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181 | public Token getTokenList(Segment text, int initialTokenType, int startOffset) {
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182 |
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183 | resetTokenList();
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184 | this.offsetShift = -text.offset + startOffset;
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185 |
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186 | // Start off in the proper state.
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187 | int state = Token.NULL;
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188 | switch (initialTokenType) {
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189 | case Token.COMMENT_MULTILINE:
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190 | state = MLC;
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191 | start = text.offset;
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192 | break;
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193 | case INTERNAL_MLC2:
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194 | state = MLC2;
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195 | start = text.offset;
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196 | break;
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197 | case INTERNAL_COMPILER_DIRECTIVE:
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198 | state = COMPILER_DIRECTIVE;
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199 | start = text.offset;
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200 | break;
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201 | case INTERNAL_COMPILER_DIRECTIVE2:
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202 | state = COMPILER_DIRECTIVE2;
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203 | start = text.offset;
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204 | break;
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205 | default:
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206 | state = Token.NULL;
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207 | }
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208 |
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209 | s = text;
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210 | try {
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211 | yyreset(zzReader);
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212 | yybegin(state);
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213 | return yylex();
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214 | } catch (IOException ioe) {
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215 | ioe.printStackTrace();
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216 | return new DefaultToken();
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217 | }
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218 |
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219 | }
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220 |
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221 |
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222 | /**
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223 | * Refills the input buffer.
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224 | *
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225 | * @return <code>true</code> if EOF was reached, otherwise
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226 | * <code>false</code>.
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227 | * @exception IOException if any I/O-Error occurs.
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228 | */
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229 | private boolean zzRefill() throws java.io.IOException {
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230 | return zzCurrentPos>=s.offset+s.count;
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231 | }
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232 |
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233 |
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234 | /**
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235 | * Resets the scanner to read from a new input stream.
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236 | * Does not close the old reader.
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237 | *
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238 | * All internal variables are reset, the old input stream
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239 | * <b>cannot</b> be reused (internal buffer is discarded and lost).
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240 | * Lexical state is set to <tt>YY_INITIAL</tt>.
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241 | *
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242 | * @param reader the new input stream
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243 | */
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244 | public final void yyreset(java.io.Reader reader) throws java.io.IOException {
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245 | // 's' has been updated.
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246 | zzBuffer = s.array;
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247 | /*
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248 | * We replaced the line below with the two below it because zzRefill
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249 | * no longer "refills" the buffer (since the way we do it, it's always
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250 | * "full" the first time through, since it points to the segment's
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251 | * array). So, we assign zzEndRead here.
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252 | */
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253 | //zzStartRead = zzEndRead = s.offset;
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254 | zzStartRead = s.offset;
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255 | zzEndRead = zzStartRead + s.count - 1;
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256 | zzCurrentPos = zzMarkedPos = zzPushbackPos = s.offset;
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257 | zzLexicalState = YYINITIAL;
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258 | zzReader = reader;
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259 | zzAtBOL = true;
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260 | zzAtEOF = false;
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261 | }
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262 |
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263 |
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264 | %}
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265 |
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266 | Letter = [A-Za-z]
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267 | LetterOrUnderscore = ({Letter}|"_")
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268 | NonzeroDigit = [1-9]
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269 | Digit = ("0"|{NonzeroDigit})
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270 | HexDigit = ({Digit}|[A-Fa-f])
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271 | OctalDigit = ([0-7])
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272 | NonSeparator = ([^\t\f\r\n\ \(\)\{\}\[\]\;\,\.\=\>\<\!\~\?\:\+\-\*\/\&\|\^\%\"\']|"#"|"\\")
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273 | IdentifierStart = ({LetterOrUnderscore}|"$")
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274 | IdentifierPart = ({IdentifierStart}|{Digit})
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275 |
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276 | LineTerminator = (\n)
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277 | WhiteSpace = ([ \t\f])
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278 |
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279 | UnclosedStringLiteral = ([\'][^\']*)
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280 | StringLiteral = ({UnclosedStringLiteral}[\'])
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281 | EscapeSequence = ("#"{Digit}*)
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282 |
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283 | MLCBegin = "{"
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284 | MLCEnd = "}"
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285 | MLC2Begin = "(*"
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286 | MLC2End = "*)"
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287 | CompilerDirective1Begin = ({MLCBegin}"$")
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288 | CompilerDirective2Begin = ({MLC2Begin}"$")
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289 | LineCommentBegin = "//"
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290 |
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291 | IntegerHelper1 = (({NonzeroDigit}{Digit}*)|"0")
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292 | IntegerHelper2 = ("0"(([xX]{HexDigit}+)|({OctalDigit}*)))
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293 | IntegerLiteral = ({IntegerHelper1}[lL]?)
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294 | HexLiteral = ({IntegerHelper2}[lL]?)
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295 | FloatHelper1 = ([fFdD]?)
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296 | FloatHelper2 = ([eE][+-]?{Digit}+{FloatHelper1})
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297 | FloatLiteral1 = ({Digit}+"."({FloatHelper1}|{FloatHelper2}|{Digit}+({FloatHelper1}|{FloatHelper2})))
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298 | FloatLiteral2 = ("."{Digit}+({FloatHelper1}|{FloatHelper2}))
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299 | FloatLiteral3 = ({Digit}+{FloatHelper2})
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300 | FloatLiteral = ({FloatLiteral1}|{FloatLiteral2}|{FloatLiteral3}|({Digit}+[fFdD]))
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301 | ErrorNumberFormat = (({IntegerLiteral}|{HexLiteral}|{FloatLiteral}){NonSeparator}+)
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302 | BooleanLiteral = ("true"|"false")
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303 |
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304 | Separator = ([\(\)\[\]])
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305 | Separator2 = ([\;,.])
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306 |
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307 | Operator = ([\^\@\:\=\<\>\+\-\/\*])
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308 |
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309 | Identifier = ({IdentifierStart}{IdentifierPart}*)
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310 | ErrorIdentifier = ({NonSeparator}+)
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311 |
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312 | URLGenDelim = ([:\/\?#\[\]@])
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313 | URLSubDelim = ([\!\$&'\(\)\*\+,;=])
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314 | URLUnreserved = ({LetterOrUnderscore}|{Digit}|[\-\.\~])
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315 | URLCharacter = ({URLGenDelim}|{URLSubDelim}|{URLUnreserved}|[%])
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316 | URLCharacters = ({URLCharacter}*)
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317 | URLEndCharacter = ([\/\$]|{Letter}|{Digit})
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318 | URL = (((https?|f(tp|ile))"://"|"www.")({URLCharacters}{URLEndCharacter})?)
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319 |
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320 |
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321 | %state MLC
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322 | %state MLC2
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323 | %state COMPILER_DIRECTIVE
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324 | %state COMPILER_DIRECTIVE2
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325 | %state EOL_COMMENT
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326 |
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327 | %%
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328 |
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329 | <YYINITIAL> {
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330 |
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331 | /* Keywords */
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332 | "array" |
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333 | "as" |
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334 | "at" |
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335 | "asm" |
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336 | "begin" |
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337 | "case" |
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338 | "class" |
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339 | "const" |
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340 | "constructor" |
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341 | "destructor" |
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342 | "dispinterface" |
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343 | "div" |
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344 | "do" |
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345 | "downto" |
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346 | "else" |
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347 | "end" |
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348 | "except" |
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349 | "exports" |
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350 | "file" |
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351 | "final" |
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352 | "finalization" |
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353 | "finally" |
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354 | "for" |
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355 | "function" |
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356 | "goto" |
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357 | "if" |
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358 | "implementation" |
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359 | "in" |
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360 | "inherited" |
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361 | "initialization" |
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362 | "inline" |
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363 | "interface" |
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364 | "is" |
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365 | "label" |
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366 | "mod" |
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367 | "not" |
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368 | "object" |
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369 | "of" |
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370 | "on" |
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371 | "or" |
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372 | "out" |
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373 | "packed" |
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374 | "procedure" |
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375 | "program" |
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376 | "property" |
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377 | "raise" |
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378 | "record" |
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379 | "repeat" |
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380 | "resourcestring" |
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381 | "set" |
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382 | "sealed" |
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383 | "shl" |
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384 | "shr" |
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385 | "static" |
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386 | "string" |
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387 | "then" |
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388 | "threadvar" |
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389 | "to" |
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390 | "try" |
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391 | "type" |
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392 | "unit" |
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393 | "unsafe" |
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394 | "until" |
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395 | "uses" |
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396 | "var" |
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397 | "while" |
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398 | "with" |
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399 | "xor" { addToken(Token.RESERVED_WORD); }
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400 |
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401 | /* Directives. */
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402 | "absolute" |
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403 | "abstract" |
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404 | "assembler" |
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405 | "automated" |
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406 | "cdecl" |
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407 | "contains" |
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408 | "default" |
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409 | "deprecated" |
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410 | "dispid" |
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411 | "dynamic" |
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412 | "export" |
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413 | "external" |
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414 | "far" |
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415 | "forward" |
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416 | "implements" |
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417 | "index" |
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418 | "library" |
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419 | "local" |
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420 | "message" |
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421 | "name" |
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422 | "namespaces" |
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423 | "near" |
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424 | "nil" |
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425 | "nodefault" |
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426 | "overload" |
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427 | "override" |
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428 | "package" |
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429 | "pascal" |
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430 | "platform" |
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431 | "private" |
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432 | "protected" |
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433 | "public" |
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434 | "published" |
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435 | "read" |
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436 | "readonly" |
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437 | "register" |
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438 | "reintroduce" |
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439 | "requires" |
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440 | "resident" |
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441 | "safecall" |
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442 | "self" |
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443 | "stdcall" |
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444 | "stored" |
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445 | "varargs" |
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446 | "virtual" |
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447 | "write" |
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448 | "writeonly" { addToken(Token.FUNCTION); }
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449 |
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450 | /* Data types. */
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451 | "shortint" |
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452 | "byte" |
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453 | "char" |
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454 | "smallint" |
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455 | "integer" |
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456 | "word" |
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457 | "longint" |
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458 | "cardinal" |
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459 | "boolean" |
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460 | "bytebool" |
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461 | "wordbool" |
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462 | "longbool" |
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463 | "real" |
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464 | "single" |
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465 | "double" |
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466 | "extended" |
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467 | "comp" |
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468 | "currency" |
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469 | "pointer" { addToken(Token.DATA_TYPE); }
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470 |
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471 | {BooleanLiteral} { addToken(Token.LITERAL_BOOLEAN); }
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472 |
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473 | {LineTerminator} { addNullToken(); return firstToken; }
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474 |
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475 | {Identifier} { addToken(Token.IDENTIFIER); }
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476 |
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477 | {WhiteSpace}+ { addToken(Token.WHITESPACE); }
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478 |
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479 | /* String/Character literals. */
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480 | {StringLiteral} { addToken(Token.LITERAL_STRING_DOUBLE_QUOTE); }
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481 | {UnclosedStringLiteral} { addToken(Token.ERROR_STRING_DOUBLE); addNullToken(); return firstToken; }
|
---|
482 | {EscapeSequence} { addToken(Token.PREPROCESSOR); }
|
---|
483 |
|
---|
484 | /* Comment literals. */
|
---|
485 | {CompilerDirective1Begin} {start = zzMarkedPos-2; yybegin(COMPILER_DIRECTIVE); }
|
---|
486 | {CompilerDirective2Begin} {start = zzMarkedPos-3; yybegin(COMPILER_DIRECTIVE2); }
|
---|
487 | {MLCBegin} { start = zzMarkedPos-1; yybegin(MLC); }
|
---|
488 | {MLC2Begin} { start = zzMarkedPos-2; yybegin(MLC2); }
|
---|
489 | {LineCommentBegin} { start = zzMarkedPos-2; yybegin(EOL_COMMENT); }
|
---|
490 |
|
---|
491 | {Separator} { addToken(Token.SEPARATOR); }
|
---|
492 | {Separator2} { addToken(Token.IDENTIFIER); }
|
---|
493 | {Operator} { addToken(Token.OPERATOR); }
|
---|
494 |
|
---|
495 | {IntegerLiteral} { addToken(Token.LITERAL_NUMBER_DECIMAL_INT); }
|
---|
496 | {HexLiteral} { addToken(Token.LITERAL_NUMBER_HEXADECIMAL); }
|
---|
497 | {FloatLiteral} { addToken(Token.LITERAL_NUMBER_FLOAT); }
|
---|
498 | {ErrorNumberFormat} { addToken(Token.ERROR_NUMBER_FORMAT); }
|
---|
499 |
|
---|
500 | {ErrorIdentifier} { addToken(Token.ERROR_IDENTIFIER); }
|
---|
501 |
|
---|
502 | /* Ended with a line not in a string or comment. */
|
---|
503 | <<EOF>> { addNullToken(); return firstToken; }
|
---|
504 |
|
---|
505 | /* Catch any other (unhandled) characters. */
|
---|
506 | . { addToken(Token.IDENTIFIER); }
|
---|
507 |
|
---|
508 | }
|
---|
509 |
|
---|
510 |
|
---|
511 | <MLC> {
|
---|
512 |
|
---|
513 | [^hwf\n\}]+ {}
|
---|
514 | {URL} { int temp=zzStartRead; addToken(start,zzStartRead-1, Token.COMMENT_MULTILINE); addHyperlinkToken(temp,zzMarkedPos-1, Token.COMMENT_MULTILINE); start = zzMarkedPos; }
|
---|
515 | [hwf] {}
|
---|
516 |
|
---|
517 | \n { addToken(start,zzStartRead-1, Token.COMMENT_MULTILINE); return firstToken; }
|
---|
518 | {MLCEnd} { yybegin(YYINITIAL); addToken(start,zzStartRead, Token.COMMENT_MULTILINE); }
|
---|
519 | <<EOF>> { addToken(start,zzStartRead-1, Token.COMMENT_MULTILINE); return firstToken; }
|
---|
520 |
|
---|
521 | }
|
---|
522 |
|
---|
523 |
|
---|
524 | <MLC2> {
|
---|
525 |
|
---|
526 | [^hwf\n\*]+ {}
|
---|
527 | {URL} { int temp=zzStartRead; addToken(start,zzStartRead-1, Token.COMMENT_MULTILINE); addHyperlinkToken(temp,zzMarkedPos-1, Token.COMMENT_MULTILINE); start = zzMarkedPos; }
|
---|
528 | [hwf] {}
|
---|
529 |
|
---|
530 | \n { addToken(start,zzStartRead-1, Token.COMMENT_MULTILINE); addEndToken(INTERNAL_MLC2); return firstToken; }
|
---|
531 | {MLC2End} { yybegin(YYINITIAL); addToken(start,zzStartRead+1, Token.COMMENT_MULTILINE); }
|
---|
532 | \* {}
|
---|
533 | <<EOF>> { addToken(start,zzStartRead-1, Token.COMMENT_MULTILINE); addEndToken(INTERNAL_MLC2); return firstToken; }
|
---|
534 |
|
---|
535 | }
|
---|
536 |
|
---|
537 |
|
---|
538 | <COMPILER_DIRECTIVE> {
|
---|
539 | [^\n\}]+ {}
|
---|
540 | \n { addToken(start,zzStartRead-1, Token.PREPROCESSOR); addEndToken(INTERNAL_COMPILER_DIRECTIVE); return firstToken; }
|
---|
541 | {MLCEnd} { yybegin(YYINITIAL); addToken(start,zzStartRead, Token.PREPROCESSOR); }
|
---|
542 | <<EOF>> { addToken(start,zzStartRead-1, Token.PREPROCESSOR); addEndToken(INTERNAL_COMPILER_DIRECTIVE); return firstToken; }
|
---|
543 | }
|
---|
544 |
|
---|
545 |
|
---|
546 | <COMPILER_DIRECTIVE2> {
|
---|
547 | [^\n\*]+ {}
|
---|
548 | \n { addToken(start,zzStartRead-1, Token.PREPROCESSOR); addEndToken(INTERNAL_COMPILER_DIRECTIVE2); return firstToken; }
|
---|
549 | {MLC2End} { yybegin(YYINITIAL); addToken(start,zzStartRead+1, Token.PREPROCESSOR); }
|
---|
550 | \* {}
|
---|
551 | <<EOF>> { addToken(start,zzStartRead-1, Token.PREPROCESSOR); addEndToken(INTERNAL_COMPILER_DIRECTIVE2); return firstToken; }
|
---|
552 | }
|
---|
553 |
|
---|
554 |
|
---|
555 |
|
---|
556 | <EOL_COMMENT> {
|
---|
557 | [^hwf\n]+ {}
|
---|
558 | {URL} { int temp=zzStartRead; addToken(start,zzStartRead-1, Token.COMMENT_EOL); addHyperlinkToken(temp,zzMarkedPos-1, Token.COMMENT_EOL); start = zzMarkedPos; }
|
---|
559 | [hwf] {}
|
---|
560 | \n { addToken(start,zzStartRead-1, Token.COMMENT_EOL); addNullToken(); return firstToken; }
|
---|
561 | <<EOF>> { addToken(start,zzStartRead-1, Token.COMMENT_EOL); addNullToken(); return firstToken; }
|
---|
562 | }
|
---|