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Merge pull request eclipse-rdf4j#843 from jamesrdf/issues/eclipse-rdf…
…4j#62-long-unicode Fix eclipse-rdf4j#62: Decode both short and long unicode SPARQL escape Signed-off-by: Heshan Jayasinghe <shanujse@gmail.com>
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...ueryparser/sparql/src/main/java/org/eclipse/rdf4j/query/parser/sparql/ast/CharStream.java
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| /* Generated By:JavaCC: Do not edit this line. CharStream.java Version 5.0 */ | ||
| /* JavaCCOptions:STATIC=false,SUPPORT_CLASS_VISIBILITY_PUBLIC=true */ | ||
| package org.eclipse.rdf4j.query.parser.sparql.ast; | ||
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| /** | ||
| * This interface describes a character stream that maintains line and | ||
| * column number positions of the characters. It also has the capability | ||
| * to backup the stream to some extent. An implementation of this | ||
| * interface is used in the TokenManager implementation generated by | ||
| * JavaCCParser. | ||
| * | ||
| * All the methods except backup can be implemented in any fashion. backup | ||
| * needs to be implemented correctly for the correct operation of the lexer. | ||
| * Rest of the methods are all used to get information like line number, | ||
| * column number and the String that constitutes a token and are not used | ||
| * by the lexer. Hence their implementation won't affect the generated lexer's | ||
| * operation. | ||
| */ | ||
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| public | ||
| interface CharStream { | ||
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| /** | ||
| * Returns the next character from the selected input. The method | ||
| * of selecting the input is the responsibility of the class | ||
| * implementing this interface. Can throw any java.io.IOException. | ||
| */ | ||
| char readChar() throws java.io.IOException; | ||
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| @Deprecated | ||
| /** | ||
| * Returns the column position of the character last read. | ||
| * @deprecated | ||
| * @see #getEndColumn | ||
| */ | ||
| int getColumn(); | ||
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| @Deprecated | ||
| /** | ||
| * Returns the line number of the character last read. | ||
| * @deprecated | ||
| * @see #getEndLine | ||
| */ | ||
| int getLine(); | ||
|
|
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| /** | ||
| * Returns the column number of the last character for current token (being | ||
| * matched after the last call to BeginTOken). | ||
| */ | ||
| int getEndColumn(); | ||
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|
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| /** | ||
| * Returns the line number of the last character for current token (being | ||
| * matched after the last call to BeginTOken). | ||
| */ | ||
| int getEndLine(); | ||
|
|
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| /** | ||
| * Returns the column number of the first character for current token (being | ||
| * matched after the last call to BeginTOken). | ||
| */ | ||
| int getBeginColumn(); | ||
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|
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| /** | ||
| * Returns the line number of the first character for current token (being | ||
| * matched after the last call to BeginTOken). | ||
| */ | ||
| int getBeginLine(); | ||
|
|
||
| /** | ||
| * Backs up the input stream by amount steps. Lexer calls this method if it | ||
| * had already read some characters, but could not use them to match a | ||
| * (longer) token. So, they will be used again as the prefix of the next | ||
| * token and it is the implemetation's responsibility to do this right. | ||
| */ | ||
| void backup(int amount); | ||
|
|
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| /** | ||
| * Returns the next character that marks the beginning of the next token. | ||
| * All characters must remain in the buffer between two successive calls | ||
| * to this method to implement backup correctly. | ||
| */ | ||
| char BeginToken() throws java.io.IOException; | ||
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| /** | ||
| * Returns a string made up of characters from the marked token beginning | ||
| * to the current buffer position. Implementations have the choice of returning | ||
| * anything that they want to. For example, for efficiency, one might decide | ||
| * to just return null, which is a valid implementation. | ||
| */ | ||
| String GetImage(); | ||
|
|
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| /** | ||
| * Returns an array of characters that make up the suffix of length 'len' for | ||
| * the currently matched token. This is used to build up the matched string | ||
| * for use in actions in the case of MORE. A simple and inefficient | ||
| * implementation of this is as follows : | ||
| * | ||
| * { | ||
| * String t = GetImage(); | ||
| * return t.substring(t.length() - len, t.length()).toCharArray(); | ||
| * } | ||
| */ | ||
| char[] GetSuffix(int len); | ||
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| /** | ||
| * The lexer calls this function to indicate that it is done with the stream | ||
| * and hence implementations can free any resources held by this class. | ||
| * Again, the body of this function can be just empty and it will not | ||
| * affect the lexer's operation. | ||
| */ | ||
| void Done(); | ||
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| } | ||
| /* JavaCC - OriginalChecksum=d5d02d7f2852c9b712f39bed41ca22b5 (do not edit this line) */ |
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