Package org.terrier.querying.parser

Class SimpleCharStream

  • public class SimpleCharStream
extends java.lang.Object
    An implementation of interface CharStream, where the stream is assumed to contain only ASCII characters (without unicode processing).

    • Constructor Summary

      Constructors 
      Constructor Description
      SimpleCharStream​(java.io.InputStream dstream)
      Constructor.
      SimpleCharStream​(java.io.InputStream dstream, int startline, int startcolumn)
      Constructor.
      SimpleCharStream​(java.io.InputStream dstream, int startline, int startcolumn, int buffersize)
      Constructor.
      SimpleCharStream​(java.io.InputStream dstream, java.lang.String encoding)
      Constructor.
      SimpleCharStream​(java.io.InputStream dstream, java.lang.String encoding, int startline, int startcolumn)
      Constructor.
      SimpleCharStream​(java.io.InputStream dstream, java.lang.String encoding, int startline, int startcolumn, int buffersize)
      Constructor.
      SimpleCharStream​(java.io.Reader dstream)
      Constructor.
      SimpleCharStream​(java.io.Reader dstream, int startline, int startcolumn)
      Constructor.
      SimpleCharStream​(java.io.Reader dstream, int startline, int startcolumn, int buffersize)
      Constructor.

    • Method Summary

      All Methods Instance Methods Concrete Methods Deprecated Methods 
      Modifier and Type Method Description
      void adjustBeginLineColumn​(int newLine, int newCol)
      Method to adjust line and column numbers for the start of a token.
      void backup​(int amount)
      Backup a number of characters.
      char BeginToken()
      Start.
      void Done()
      Reset buffer when finished.
      protected void ExpandBuff​(boolean wrapAround)  
      protected void FillBuff()  
      int getBeginColumn()
      Get token beginning column number.
      int getBeginLine()
      Get token beginning line number.
      int getColumn()
      Deprecated.
      int getEndColumn()
      Get token end column number.
      int getEndLine()
      Get token end line number.
      java.lang.String GetImage()
      Get token literal value.
      int getLine()
      Deprecated.
      char[] GetSuffix​(int len)
      Get the suffix.
      int getTabSize()  
      char readChar()
      Read a character.
      void ReInit​(java.io.InputStream dstream)
      Reinitialise.
      void ReInit​(java.io.InputStream dstream, int startline, int startcolumn)
      Reinitialise.
      void ReInit​(java.io.InputStream dstream, int startline, int startcolumn, int buffersize)
      Reinitialise.
      void ReInit​(java.io.InputStream dstream, java.lang.String encoding)
      Reinitialise.
      void ReInit​(java.io.InputStream dstream, java.lang.String encoding, int startline, int startcolumn)
      Reinitialise.
      void ReInit​(java.io.InputStream dstream, java.lang.String encoding, int startline, int startcolumn, int buffersize)
      Reinitialise.
      void ReInit​(java.io.Reader dstream)
      Reinitialise.
      void ReInit​(java.io.Reader dstream, int startline, int startcolumn)
      Reinitialise.
      void ReInit​(java.io.Reader dstream, int startline, int startcolumn, int buffersize)
      Reinitialise.
      void setTabSize​(int i)  
      protected void UpdateLineColumn​(char c)  

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Field Detail

      • staticFlag

        public static final boolean staticFlag
        Whether parser is static.
        See Also:
        Constant Field Values

      • bufpos

        public int bufpos
        Position in buffer.

      • bufline

        protected int[] bufline

      • bufcolumn

        protected int[] bufcolumn

      • column

        protected int column

      • line

        protected int line

      • prevCharIsCR

        protected boolean prevCharIsCR

      • prevCharIsLF

        protected boolean prevCharIsLF

      • inputStream

        protected java.io.Reader inputStream

      • buffer

        protected char[] buffer

      • maxNextCharInd

        protected int maxNextCharInd

      • inBuf

        protected int inBuf

      • tabSize

        protected int tabSize

      • trackLineColumn

        protected boolean trackLineColumn

    • Constructor Detail

      • SimpleCharStream

        public SimpleCharStream​(java.io.Reader dstream,
                        int startline,
                        int startcolumn,
                        int buffersize)
        Constructor.

      • SimpleCharStream

        public SimpleCharStream​(java.io.Reader dstream,
                        int startline,
                        int startcolumn)
        Constructor.

      • SimpleCharStream

        public SimpleCharStream​(java.io.Reader dstream)
        Constructor.

      • SimpleCharStream

        public SimpleCharStream​(java.io.InputStream dstream,
                        java.lang.String encoding,
                        int startline,
                        int startcolumn,
                        int buffersize)
                 throws java.io.UnsupportedEncodingException
        Constructor.
        Throws:
        java.io.UnsupportedEncodingException

      • SimpleCharStream

        public SimpleCharStream​(java.io.InputStream dstream,
                        int startline,
                        int startcolumn,
                        int buffersize)
        Constructor.

      • SimpleCharStream

        public SimpleCharStream​(java.io.InputStream dstream,
                        java.lang.String encoding,
                        int startline,
                        int startcolumn)
                 throws java.io.UnsupportedEncodingException
        Constructor.
        Throws:
        java.io.UnsupportedEncodingException

      • SimpleCharStream

        public SimpleCharStream​(java.io.InputStream dstream,
                        int startline,
                        int startcolumn)
        Constructor.

      • SimpleCharStream

        public SimpleCharStream​(java.io.InputStream dstream,
                        java.lang.String encoding)
                 throws java.io.UnsupportedEncodingException
        Constructor.
        Throws:
        java.io.UnsupportedEncodingException

      • SimpleCharStream

        public SimpleCharStream​(java.io.InputStream dstream)
        Constructor.

    • Method Detail

      • setTabSize

        public void setTabSize​(int i)

      • getTabSize

        public int getTabSize()

      • ExpandBuff

        protected void ExpandBuff​(boolean wrapAround)

      • FillBuff

        protected void FillBuff()
                 throws java.io.IOException
        Throws:
        java.io.IOException

      • BeginToken

        public char BeginToken()
                throws java.io.IOException
        Start.
        Throws:
        java.io.IOException

      • UpdateLineColumn

        protected void UpdateLineColumn​(char c)

      • readChar

        public char readChar()
              throws java.io.IOException
        Read a character.
        Throws:
        java.io.IOException

      • getColumn

        @Deprecated
public int getColumn()
        Deprecated.

      • getLine

        @Deprecated
public int getLine()
        Deprecated.

      • getEndColumn

        public int getEndColumn()
        Get token end column number.

      • getEndLine

        public int getEndLine()
        Get token end line number.

      • getBeginColumn

        public int getBeginColumn()
        Get token beginning column number.

      • getBeginLine

        public int getBeginLine()
        Get token beginning line number.

      • backup

        public void backup​(int amount)
        Backup a number of characters.

      • ReInit

        public void ReInit​(java.io.Reader dstream,
                   int startline,
                   int startcolumn,
                   int buffersize)
        Reinitialise.

      • ReInit

        public void ReInit​(java.io.Reader dstream,
                   int startline,
                   int startcolumn)
        Reinitialise.

      • ReInit

        public void ReInit​(java.io.Reader dstream)
        Reinitialise.

      • ReInit

        public void ReInit​(java.io.InputStream dstream,
                   java.lang.String encoding,
                   int startline,
                   int startcolumn,
                   int buffersize)
            throws java.io.UnsupportedEncodingException
        Reinitialise.
        Throws:
        java.io.UnsupportedEncodingException

      • ReInit

        public void ReInit​(java.io.InputStream dstream,
                   int startline,
                   int startcolumn,
                   int buffersize)
        Reinitialise.

      • ReInit

        public void ReInit​(java.io.InputStream dstream,
                   java.lang.String encoding)
            throws java.io.UnsupportedEncodingException
        Reinitialise.
        Throws:
        java.io.UnsupportedEncodingException

      • ReInit

        public void ReInit​(java.io.InputStream dstream)
        Reinitialise.

      • ReInit

        public void ReInit​(java.io.InputStream dstream,
                   java.lang.String encoding,
                   int startline,
                   int startcolumn)
            throws java.io.UnsupportedEncodingException
        Reinitialise.
        Throws:
        java.io.UnsupportedEncodingException

      • ReInit

        public void ReInit​(java.io.InputStream dstream,
                   int startline,
                   int startcolumn)
        Reinitialise.

      • GetImage

        public java.lang.String GetImage()
        Get token literal value.

      • GetSuffix

        public char[] GetSuffix​(int len)
        Get the suffix.

      • Done

        public void Done()
        Reset buffer when finished.

      • adjustBeginLineColumn

        public void adjustBeginLineColumn​(int newLine,
                                  int newCol)
        Method to adjust line and column numbers for the start of a token.