Package org.apache.groovy.json.internal
Class ReaderCharacterSource
- java.lang.Object
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- org.apache.groovy.json.internal.ReaderCharacterSource
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- All Implemented Interfaces:
CharacterSource
public class ReaderCharacterSource extends java.lang.Object implements CharacterSource
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Constructor Summary
Constructors Constructor Description ReaderCharacterSource(java.io.Reader reader)ReaderCharacterSource(java.io.Reader reader, int readAheadSize)ReaderCharacterSource(java.lang.String string)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description booleanconsumeIfMatch(char[] match)Useful for finding constants in a string like true, false, etc.intcurrentChar()returns the current character without changing the IO pointer or index.java.lang.StringerrorDetails(java.lang.String message)char[]findNextChar(int match, int esc)Used to find strings and their ilk Finds the next non-escaped charbooleanhadEscape()booleanhasChar()Checks to see if there is a next character.intlocation()This is mostly for debugging and testing.intnextChar()returns the next character moving the file pointer or index to the next location.char[]readNumber()Reads a number from the character source.intsafeNextChar()Combines the operations of nextChar and hasChar.voidskipWhiteSpace()Skip white space.
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Method Detail
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nextChar
public final int nextChar()
Description copied from interface:CharacterSourcereturns the next character moving the file pointer or index to the next location.- Specified by:
nextCharin interfaceCharacterSource
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currentChar
public final int currentChar()
Description copied from interface:CharacterSourcereturns the current character without changing the IO pointer or index.- Specified by:
currentCharin interfaceCharacterSource
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hasChar
public final boolean hasChar()
Description copied from interface:CharacterSourceChecks to see if there is a next character.- Specified by:
hasCharin interfaceCharacterSource
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consumeIfMatch
public final boolean consumeIfMatch(char[] match)
Description copied from interface:CharacterSourceUseful for finding constants in a string like true, false, etc.- Specified by:
consumeIfMatchin interfaceCharacterSource
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location
public final int location()
Description copied from interface:CharacterSourceThis is mostly for debugging and testing.- Specified by:
locationin interfaceCharacterSource
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safeNextChar
public final int safeNextChar()
Description copied from interface:CharacterSourceCombines the operations of nextChar and hasChar. Characters is -1 if not found which signifies end of file. This might be preferable to avoid two method calls.- Specified by:
safeNextCharin interfaceCharacterSource
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findNextChar
public char[] findNextChar(int match, int esc)Description copied from interface:CharacterSourceUsed to find strings and their ilk Finds the next non-escaped char- Specified by:
findNextCharin interfaceCharacterSource- Parameters:
match- character to findesc- escape character to avoid next char if escaped- Returns:
- list of chars until this is found.
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hadEscape
public boolean hadEscape()
- Specified by:
hadEscapein interfaceCharacterSource
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skipWhiteSpace
public void skipWhiteSpace()
Description copied from interface:CharacterSourceSkip white space.- Specified by:
skipWhiteSpacein interfaceCharacterSource
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readNumber
public char[] readNumber()
Description copied from interface:CharacterSourceReads a number from the character source.- Specified by:
readNumberin interfaceCharacterSource
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errorDetails
public java.lang.String errorDetails(java.lang.String message)
- Specified by:
errorDetailsin interfaceCharacterSource
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