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Icon+Unicon/Intro: Difference between revisions
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→General Language References
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These are general language references.
===== Unicon =====
* [http://unicon.org/book/ub.pdf Book: Programming with Unicon 2nd edition; Jeffrey, Mohamed, Gharaibeh, Pereda, Parlett - note also documents details of the Icon Programming Library] ▼
===== Icon =====
* [http://www.cs.arizona.edu/icon/ftp/doc/lb1up.pdf Book: The Icon Programming Language, 3rd Edition; Griswold and Griswold]
▲* [http://unicon.org/book/ub.pdf Book: Programming with Unicon; Jeffrey, Mohamed, Pereda, Parlett - note also documents details of the Icon Programming Library]
* [http://www2.cs.uidaho.edu/~jeffery/icon/humanists/humanist.pdf Book: Icon Programming for Humanists; Corré]
* [http://www.tools-of-computing.com/tc/CS/iconprog.pdf Book: Icon Programming Language Handbook by T.W. Christopher]
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* [https://tapestry.tucson.az.us/twiki/bin/view/Main/WebHome Code: The Tapestry TWiki examples of Icon and Unicon programs]
==== Graphics, Network Messaging, Threads, Patterns, etc. ====
These represent extensions that have been integrated into the core langauge(s).
* [http://www.cs.arizona.edu/icon/ftp/doc/gb1up.pdf Book: Graphics Programming in Icon; Griswold,Jeffery, and Townsend]
* [http://unicon.org/utr/utr6b.pdf An IVIB Primer (Visual Interface Builder, UTR6b)]
* [http://unicon.org/utr/utr9b.pdf Unicon 3D Graphics User's Guide and Reference Manual (UTR9b superseding UTR9a)]
▲* [http://unicon.org/utr/utr13.pdf The Unicon Messaging Facilities (UTR13)]
* [http://unicon.org/utr/utr10.pdf Debugging with UDB (UTR10)]
* [http://unicon.org/utr/utr12.pdf Ui: a Unicon Development Environment (UTR12)]
* [http://unicon.org/utr/utr13.pdf The Unicon Messaging Facilities (UTR13)]
* [http://unicon.org/utr/utr14.pdf Unicon Threads User's Guide and Reference Manual (UTR14)]
* [http://unicon.org/utr/utr18.pdf Pattern Matching in Unicon (UTR18)]
==== Implementation ====
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** [http://www.cs.arizona.edu/icon/ftp/doc/ipd261.pdf Report: IPD261 Icon's run-time implementation language]
* [http://unicon.org/book/ib.pdf Book: The Implementation of Icon and Unicon: a Compendium; Jeffery]
* [http://unicon.org/utr/
== Icon and Unicon Differences ==
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====suspend expr====
Suspend is semantically similar to 'return' with the exception that it sets up the possibility of producing additional results if needed. Rather than terminating the procedure as return does, suspend returns a result while leaving the procedure in suspension in the event additional results are needed. A suspended procedure will resume at the next point in the code. This capability is built directly into the run time rather than being an artificially constructed behaviour provided by Python or C#'s use of the 'yield' keyword. Every and all expressions may suspend or be involved in a suspending expression without any effort. Behaviorally this is closer to Prolog which also supports backtracking as a core part of the language. If the ''expr'' is capable of yielding more than one result, then suspend (if driven) will progressively yield all of those values. If the expression fails, execution continues within the procedure until the next suspend, return, or fail.
A procedure can contain several uses of ''suspend'' and it's quite reasonable for the procedure to execute many of them in any chosen order.
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