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109 lines
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6.5 KiB
HTML
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<title>CLiki: pattern matching</title>
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<span class="hidden">CLiki - pattern matching</span>
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<div id="content"><div id="content-area"><div id="article-title">pattern matching</div><div id="article">Libraries adding data-structure pattern matching operations to <a href="Common Lisp.html" class="internal">Common Lisp</a>.<p>We recommend <a href="trivia.html" class="internal">trivia</a> for pattern matching, that is a drop-in replacement for <a href="optima.html" class="internal">optima</a>. For unification, see <a href="unification.html" class="internal">unification</a>.<p><ul>
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<li>
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<a href="bind.html" class="internal">bind</a> -
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Bind combines <a href="https://www.cliki.net/site/HyperSpec/Body/speope_letcm_letst.html" class="hyperspec">let*</a>, <a href="https://www.cliki.net/site/HyperSpec/Body/mac_destructuring-bind.html" class="hyperspec">destructuring-bind</a> and <a href="https://www.cliki.net/site/HyperSpec/Body/mac_multiple-value-bind.html" class="hyperspec">multiple-value-bind</a> into a single form
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</li>
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<li>
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<a href="bpm2.html" class="internal">bpm2</a> -
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bpm2 is a <a href="pattern matching.html" class="category">pattern matching</a> language originally designed for doing code transformation [ie, writing compilers]
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</li>
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<li>
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<a href="cartesian-product-switch.html" class="internal">cartesian-product-switch</a> -
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cartesian-product-switch is a macro for choosing the appropriate form to execute according to the combined results of multiple tests
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</li>
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<li>
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<a href="cl-unification.html" class="internal">cl-unification</a> -
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Provides unification (as used in Prolog) over fairly arbitrary Common Lisp objects
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</li>
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<li>
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<a href="cl-xmlspam.html" class="internal">cl-xmlspam</a> -
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XML Stream PAttern Matcher - concise, regexp-like <a href="pattern matching.html" class="category">pattern matching</a> on streaming <a href="XML.html" class="category">XML</a>
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</li>
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<li>
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<a href="let-plus.html" class="internal">let-plus</a> -
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LET+ extends <a href="https://www.cliki.net/site/HyperSpec/Body/speope_letcm_letst.html" class="hyperspec">let*</a> with destructuring forms, slot access, hash table elements and various other constructs with a consistent interface
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</li>
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<li>
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<a href="MCPat.html" class="internal">MCPat</a> -
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MCPat is a meta-circular <a href="pattern matching.html" class="category">pattern matching</a> library
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</li>
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<li>
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<a href="screamer.html" class="internal">screamer</a> -
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Screamer adds support for nondeterministic and constraint programming, including backtracking and undoable side-effects
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</li>
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<li>
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<a href="spath.html" class="internal">spath</a> -
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<a href="https://github.com/svetlyak40wt/cl-spath">SPath</a> is a library for running search queries against s-expressions, intended to match parts of them that the user needs
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</li>
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<li>
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<a href="Toadstool.html" class="internal">Toadstool</a> -
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Toadstool is a library for <a href="pattern matching.html" class="category">pattern matching</a>
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</li>
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<li>
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<a href="Trivia.html" class="internal">Trivia</a> -
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Trivial <a href="pattern matching.html" class="category">pattern matching</a> compiler
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</li>
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<li>
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<a href="type-r.html" class="internal">type-r</a> -
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The complete collection of accessor functions and patterns to access the elements in a compound type specifier
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</li>
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</ul><p>See also:
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<ul>
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<li><a href="https://www.cliki.net/EEL" class="new">EEL</a></li>
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<li>
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<a href="https://www.cliki.net/site/HyperSpec/Body/mac_destructuring-bind.html" class="hyperspec">destructuring-bind</a> can be used to bind variables to components of a tree, but does not provide for multiple alternative patterns.</li>
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<li>
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<a href="https://www.cliki.net/site/HyperSpec/Body/mac_typecasec_cm_etypecase.html" class="hyperspec">typecase</a> can be used to test structures against a pattern (type), but does not destructure.</li>
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<li>
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<a href="cl-phonetic.html" class="internal">cl-phonetic</a> — phonetical pattern matcher (work in progress)</li>
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