48 lines
1.6 KiB
Java
48 lines
1.6 KiB
Java
package util;
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import java.util.HashSet;
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import java.util.Set;
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public class Characters {
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public static final int EOF = -1;
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public static final char BACKSLASH = '\\';
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public static final char DOUBLE_QUOTE = '\"';
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public static final char HASH = '#';
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public static final char LEFT_PARENTHESIS = '(';
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public static final char LEFT_SQUARE_BRACKET = '[';
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public static final char NEWLINE = '\n';
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public static final char PERIOD = '.';
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public static final char RIGHT_PARENTHESIS = ')';
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public static final char RIGHT_SQUARE_BRACKET = ']';
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public static final char SEMICOLON = ';';
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public static final char SINGLE_QUOTE = '\'';
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public static final char TICK_MARK = '`';
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public static final Set<Character> illegalIdentifierCharacters = new HashSet<>();
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static {
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illegalIdentifierCharacters.add(DOUBLE_QUOTE);
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illegalIdentifierCharacters.add(SINGLE_QUOTE);
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illegalIdentifierCharacters.add(BACKSLASH);
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illegalIdentifierCharacters.add(TICK_MARK);
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illegalIdentifierCharacters.add(LEFT_PARENTHESIS);
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illegalIdentifierCharacters.add(RIGHT_PARENTHESIS);
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illegalIdentifierCharacters.add(LEFT_SQUARE_BRACKET);
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illegalIdentifierCharacters.add(RIGHT_SQUARE_BRACKET);
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illegalIdentifierCharacters.add(HASH);
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illegalIdentifierCharacters.add(PERIOD);
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illegalIdentifierCharacters.add(SEMICOLON);
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}
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public static boolean isLegalIdentifierCharacter(char c) {
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return (!Character.isWhitespace(c)) && (!illegalIdentifierCharacters.contains(c));
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}
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public static boolean isLegalStringCharacter(char c) {
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return true;
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}
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}
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