Package org.antlr.v4.runtime
Interface CharStream
- All Superinterfaces:
IntStream
- All Known Implementing Classes:
ANTLRFileStream
,ANTLRInputStream
,CodePointCharStream
,UnbufferedCharStream
A source of characters for an ANTLR lexer.
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Field Summary
Fields inherited from interface org.antlr.v4.runtime.IntStream
EOF, UNKNOWN_SOURCE_NAME
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Method Summary
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Method Details
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getText
This method returns the text for a range of characters within this input stream. This method is guaranteed to not throw an exception if the specifiedinterval
lies entirely within a marked range. For more information about marked ranges, seeIntStream.mark()
.- Parameters:
interval
- an interval within the stream- Returns:
- the text of the specified interval
- Throws:
NullPointerException
- ifinterval
isnull
IllegalArgumentException
- ifinterval.a < 0
, or ifinterval.b < interval.a - 1
, or ifinterval.b
lies at or past the end of the streamUnsupportedOperationException
- if the stream does not support getting the text of the specified interval
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