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The ANTLR 4 grammar compiler.

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CharStream (ANTLR 4 Runtime (Optimized) 4.7.3 API)













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org.antlr.v4.runtime
Interface CharStream






All Superinterfaces:
IntStream


All Known Subinterfaces:
UnicodeCharStream


All Known Implementing Classes:
ANTLRFileStream, ANTLRInputStream, CodePointCharStream, UnbufferedCharStream




public interface CharStream
extends IntStream
A source of characters for an ANTLR lexer.











Field Summary




Fields inherited from interface org.antlr.v4.runtime.IntStream
EOF, UNKNOWN_SOURCE_NAME








Method Summary

Methods 

Modifier and Type
Method and Description


String
getText(Interval interval)
This method returns the text for a range of characters within this input
 stream.







Methods inherited from interface org.antlr.v4.runtime.IntStream
consume, getSourceName, index, LA, mark, release, seek, size














Method Detail





getText
@NotNull
String getText(@NotNull
                     Interval interval)
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
 specified interval lies entirely within a marked range. For more
 information about marked ranges, see IntStream.mark().
Parameters:
interval - an interval within the stream
Returns:
the text of the specified interval
Throws:
NullPointerException - if interval is null
IllegalArgumentException - if interval.a < 0, or if
 interval.b < interval.a - 1, or if interval.b lies at or
 past the end of the stream
UnsupportedOperationException - if the stream does not support
 getting the text of the specified interval
















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