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Java™ Pretty Printer Library v0.5 |
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See:
Description
Interface Summary | |
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Backend<Exc extends Exception> | The backend for a Layouter . |
PrettyPrintable | An interface for objects that can pretty print themselves. |
Class Summary | |
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DataLayouter<Exc extends Exception> | An extension of Layouter to print
arbitrary Java data. |
Layouter<Exc extends Exception> | Pretty-print information formatted using line breaks and indentation. |
StringBackend | A Backend which appends all output to a StringBuilder or
StringBuffer. |
WriterBackend | A Backend which writes all output to a java.io.Writer. |
Enum Summary | |
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Layouter.BreakConsistency | An enum type to distinguish consistent and inconsistent blocks. |
Layouter.IndentationBase | An enum type to distinguish indentation relative to the current position or relative to the surrounding block's indentation level |
Exception Summary | |
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NoExceptions | A dummy Exception type parameter. |
UnbalancedBlocksException | Thrown by many methods of Layouter to indicate illegal
usage. |
A package to pretty-print information using line breaks and indentation. For instance, it can be used to print
while (i>0) { i--; j++; }instead of
while (i>0) { i --; j++;}if a maximum line width of 15 characters is chosen. The frontend to the Pretty-Printer is the
Layouter
class.
You may configure what happens with the output by implemenenting the
Backend
interface, or by using one of the
standard implementations StringBackend
and
WriterBackend
.
A particularly common use is to print arbitrary data structures
like with the Object.toString()
method, but formatted using
whitespace and indentation. This is supported by the DataLayouter
class, which provides for standard layouts for collections, arrays,
and maps, but also allows new classes to implement the
PrettyPrintable
interface to specify their preferred layout.
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