16 lines
844 B
Text
16 lines
844 B
Text
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Boomerang is a programming language for writing lenses--well-behaved
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bidirectional transformations--that operate on ad-hoc, textual data
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formats. Every lens program, when read from left to right, describes
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a function that maps an input to an output; when read from right
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to left, the very same program describes a "backwards" function
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that maps a modified output, together with the original input, back
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to a modified input.
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Lenses have been used to solve problems across a wide range of
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areas in computing including: in data converters and synchronizers,
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in parsers and pretty printers, in picklers and unpicklers, in
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structure editors, in constraint maintainers for user interfaces,
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in software model transformations, in schema evolution, in tools
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for managing system configuration files, and in databases where
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they provide updatable views.
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