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WebStatistics
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13 Mar 2010 - 12:54 - r1.272
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Main.guest
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Statistics for Cookbook Web Month: Topic views: Topic saves: File uploads: Most popular topic views: Top contributors for topic save and uploads: Mar 2010 14686 0 ... |
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SectionIndex
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27 Jan 2010 - 07:32 - r1.10
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JensAxelSoegaard
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This page is a prototype, under development. It is like the new auto-generated TOC, but with chapters having their own headings, rather than being bulleted items ... |
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WebHome
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27 Jan 2010 - 07:30 - r1.41
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JensAxelSoegaard
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Welcome to the Schematics Scheme Cookbook. The Schematics Scheme Cookbook is a BecomingAnAuthor collaborative effort to produce documentation and recipes for using ... |
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PLTCustodianRegistration
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07 Dec 2009 - 13:12 - r1.3
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MrMathematica
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STARTINCLUDE Registering an object to a custodian Problem The foreign function interface allows us to register objects with a finalizer that calls when an object ... |
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ProcessCaptureOutput
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23 Jul 2009 - 10:54 - r1.8
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TroelsKnakNielsen
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STARTINCLUDE Capturing the Output of a Process Problem You want to run an external process and capture its output. Solution The function system/output below uses ... |
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FunctionalHeap
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21 Jul 2009 - 20:12 - r1.6
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JakeEakle
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Functional Heap Problem A heap is data structure that in its basic form supports the operations insert and delete-min . More advanced heaps also support merge . Solution ... |
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CoRoutines
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22 Apr 2009 - 16:37 - r1.34
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JosKoot
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STARTINCLUDE Coroutines Problem In some cases it is desirable to transform a procedure that returns a table (a list, vector or list of lists and so on) into a procedure ... |
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CreatingJpegWithMzScheme
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07 Apr 2009 - 19:58 - r1.2
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StephenDeGabrielle
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STARTINCLUDE Creating Jpeg from scratch using MzScheme Problem You are using PLT DrScheme and you want to draw graphs, generate graphics, or process images from scratch ... |
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WebFetchingHttpsUrl
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17 Dec 2008 - 15:27 - r1.8
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EricHanchrow
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STARTINCLUDE Fetching an HTTPS URL Problem PLT Scheme's url.ss library in the net collection does not directly support retrieval of URLs via HTTPS, i.e. using SSL ... |
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Parsing
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16 Dec 2008 - 22:43 - r1.4
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AaronHawley
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Parsing http://docs.plt-scheme.org/parser-tools/ The parser-tools collection http://www.iro.umontreal.ca/~boucherd/Lalr/documentation/lalr.html Portable and efficient ... |
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WritingXML
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11 Dec 2008 - 17:20 - NEW
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DannyYoo
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STARTINCLUDE Writing XML using the xml library Problem You have some s-expression that you'd like to write to XML. Solution Use the write-xml/content function in ... |
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PearlFunAndGames
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26 Nov 2008 - 12:27 - r1.4
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BenjaminLRussell
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Fun and Games These are a few little toy examples for modelling finite state machines in Scheme. There are better ways to do it. It's just really basic stuff for ... |
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ListRecipeTraversing
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21 Nov 2008 - 11:07 - r1.4
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MichaelBurschik
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STARTINCLUDE Traversing Lists Problem Solution The map procedure applies a procedure proc that takes n arguments and returns a single value, to n lists and returns ... |
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FileRead
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04 Nov 2008 - 15:08 - r1.4
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StephenDeGabrielle
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STARTINCLUDE Reading An Entire Text File Problem You want to read the lines from a file and store them in a list. Solution begin scheme (define (readlines filename ... |
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IdiomSharingState
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01 Nov 2008 - 14:29 - r1.11
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NunoYobidness
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Sharing state between two functions Problem Defining two functions sharing state without polluting the top level with unneccesary definitions. Solution There are ... |
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PltManuals
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16 Sep 2008 - 18:46 - r1.4
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MarekKubica
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PLT Manuals PltScheme PLT Scheme is well-documented, with a plethora of manuals in HTML format. Many of the most frequently asked questions about PLT Scheme can be ... |
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StringSplit
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13 Sep 2008 - 16:17 - r1.9
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MarekKubica
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STARTINCLUDE string-split: splitting a string into substrings Problem Split a string into words separated by whitespace or other delimiters. See the function split ... |
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HowToMakeASnip
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04 Aug 2008 - 19:30 - NEW
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StephenDeGabrielle
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STARTINCLUDE How to make a snip see http://docs.plt-scheme.org/gui/snip .html Problem You want to make a new type of snip for use on an editor-canvas (PLT Scheme ... |
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GUIChapterComments
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04 Aug 2008 - 18:21 - r1.5
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StephenDeGabrielle
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TMPL:P{"chaptercommenttip"} STARTINCLUDE Comments See also Corey Sweeney's http://students.depaul.edu/~csweeney/Guibuilder.Tutorial.html GUI-builder Howto . Main ... |
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GUIHelloWorld
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04 Aug 2008 - 14:23 - r1.4
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StephenDeGabrielle
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STARTINCLUDE Creating a window containing text Problem You want to create a GUI window containing some text. Solution PltScheme provides a cross-platform GUI toolkit ... |
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GUIWidgetAggregation
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17 Jul 2008 - 08:59 - r1.9
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StephenDeGabrielle
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STARTINCLUDE Aggregating Widgets in a Single Widget Problem You would like to deal with many widgets as though they were a single widget. Solution begin scheme #lang ... |
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SaveBinaryDataInSQL
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04 Jul 2008 - 04:38 - NEW
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HiSeeComments
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STARTINCLUDE Save Binary Data in SQL Problem Postgres has a binary datatype. However, if your using hans's sqlid database driver with postgres, and try to save a ... |
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DatabaseChapterComments
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01 Jul 2008 - 05:36 - r1.3
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AntonVanStraaten
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TMPL:P{"chaptercommenttip"} STARTINCLUDE Comments WriteSqlInSchemeLikeSyntax: belongs here, but I did something wrong Main.HiSeeComments Fixed the parent topic ... |
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WriteSqlInSchemeLikeSyntax
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01 Jul 2008 - 05:32 - r1.2
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AntonVanStraaten
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STARTINCLUDE Write SQL In Scheme Like Syntax Problem Writing SQL queries, by writing strings using "string-append" can be a pain. a sexp would make life easier. Solution ... |
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WebFileUpload
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01 Jul 2008 - 04:26 - r1.3
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HiSeeComments
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File Upload Problem You already know how to write complex, and useful CGIs in scheme, however you need to upload a file (any kind of file) from the user computer ... |
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LayoutMultiplePanelsInAFrame
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17 Apr 2008 - 06:28 - r1.2
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NoelWelsh
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STARTINCLUDE Laying out panels in a window Problem You want to make a specific layout of your panels Solution Laying out panels in DrScheme is simple, Inside your ... |
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IdiomObjectOrientedProgramming
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02 Apr 2008 - 22:36 - r1.12
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StephenDeGabrielle
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Object Oriented Programming http://www.cs.dartmouth.edu/~cs18/W2004/handouts/objects/objects.html Object Oriented Programming using (a modified) Swindle http://www ... |
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WebGettingStartedInstaweb
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03 Mar 2008 - 11:30 - r1.4
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NoelWelsh
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STARTINCLUDE Getting Started With Web Development and Instaweb Problem You don't know how to get started with web development using the PLT Web server. Solution The ... |
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ApplicableHashTables
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05 Feb 2008 - 16:47 - NEW
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DanielSilva
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STARTINCLUDE Applicable Hash Tables Problem You want to apply hash-table objects directly to look up or associate keys with values. Solution You can rely on structures ... |
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IdiomStreams
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04 Feb 2008 - 13:01 - r1.4
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StephenDeGabrielle
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STARTINCLUDE Streams Problem You want to handle state in a functional manner. Solution The concept you're looking for is called a "Stream". Discussion The canonical ... |
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ImperativeQueues
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09 Jan 2008 - 18:33 - r1.7
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JosKoot
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STARTINCLUDE Imperative Queues Problem A queue is a first-in first-out memory. Objects can be stored one by one and can be extracted (or removed) one by one. Objects ... |
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WebPLTWebServer
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05 Jan 2008 - 19:37 - r1.4
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TroelsKnakNielsen
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STARTINCLUDE The PLT Web Server Starting the PLT Web Server Starting the web server on your computer is easy. Start a commmand prompt and execute the command: plt ... |
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HtmlPrag
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03 Jan 2008 - 10:59 - NEW
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StephenDeGabrielle
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HtmlPrag provides permissive HTML parsing and emitting capability to Scheme programs. See: http://www.neilvandyke.org/htmlprag/ Main.StephenDeGabrielle 03 Jan 2008 ... |
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SXPath
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03 Jan 2008 - 10:58 - NEW
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StephenDeGabrielle
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SXPath is a query language for SXML. It treats a location path as a composite query over an XPath tree or its branch. A single step is a combination of a projection ... |
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SimpleCanvasOperations
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19 Dec 2007 - 12:14 - NEW
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StephenDeGabrielle
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STARTINCLUDE Simple Canvas operations Problem You want to operate on and interact with a drawing canvas. Solution See also ''PLT MrEd: Graphical Toolbox Manual Chapter ... |
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ThreadChapterComments
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12 Dec 2007 - 16:47 - r1.2
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StephenDeGabrielle
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TMPL:P{"chaptercommenttip"} STARTINCLUDE Comments A nice simple example of thread use is available at http://www.kuro5hin.org/story/2004/3/17/93442/8657 It supplies ... |
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IntroductionToMzlibClasses
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12 Dec 2007 - 16:32 - r1.7
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StephenDeGabrielle
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STARTINCLUDE (lib "class.ss") Notes These are a set of notes I'm taking about learning the class system in mzlib, the standard library that comes with mzscheme. I ... |
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FileWrite
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10 Dec 2007 - 10:43 - r1.4
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NoelWelsh
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STARTINCLUDE Writing to a File Problem You want to write text or data to a file. Solution If you just have a string s to write to a file with name fname , this will ... |
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NetSendEmail
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27 Nov 2007 - 15:45 - r1.4
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StephenDeGabrielle
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STARTINCLUDE Sending Email Problem You want to send an email from a Scheme program Solution Use the smtp.ss or sendmail.ss modules, and the head.ss module, all in ... |
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TimeRFC822
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15 Oct 2007 - 11:58 - r1.3
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JeromeBaum
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STARTINCLUDE Writing and Parsing RFC 822 Dates and Times Problem You need to convert from struct:time to RFC 822 format Dates and Times. Solution mzlib provides one ... |
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XMLRecipeSimpleChanges
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08 Oct 2007 - 23:14 - r1.7
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EricHanchrow
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STARTINCLUDE Making Simple Changes to Elements or Text Problem You want to filter some XML. For example, you want to make substitutions in the body of a document ... |
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SyntaxLoc
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24 Aug 2007 - 22:45 - NEW
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WillFarr
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STARTINCLUDE Using syntax/loc instead of syntax Problem You're tired of bad error messages and location information from your macros. Solution Use syntax/loc instead ... |
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NewSRFI42Generator
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24 Aug 2007 - 22:23 - r1.2
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JensAxelSoegaard
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STARTINCLUDE Creating a New SRFI-42 Generator Problem You have a new datatype, in this example a matrix , and you want users to be able to iterate over it using http ... |
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MacrosChapterRecipes
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24 Aug 2007 - 17:53 - NEW
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WillFarr
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STARTINCLUDE Recipes TMPL:P{"recipequery"} STOPINCLUDE Set ALLOWTOPICCHANGE Main.SchematicsEditorsGroup Main.WillFarr 24 Aug 2007 |
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MacrosChapterComments
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24 Aug 2007 - 17:50 - NEW
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WillFarr
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TMPL:P{"chaptercommenttip"} STARTINCLUDE Comments STOPINCLUDE Main.WillFarr 24 Aug 2007 |
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MacrosIntroduction
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24 Aug 2007 - 17:48 - NEW
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WillFarr
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STARTINCLUDE Introduction Scheme macros are transformations on the source of a scheme program which happen at "compile" time. They allow you to introduce New binding ... |
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MacrosChapter
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24 Aug 2007 - 17:31 - NEW
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WillFarr
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STARTINCLUDE Macros TMPL:P{"chapterquery"} STOPINCLUDE TMPL:P{"chaptercommentlink"} INCLUDE{"MacrosChapterComments"} Set ALLOWTOPICCHANGE Main.SchematicsEditorsGroup ... |
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TextTemplate
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13 Aug 2007 - 19:55 - NEW
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NikitaSidorov
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STARTINCLUDE text-template Location http://text-template.sourceforge.net Description text-template is a small text template library for scheme. It can be used to ... |
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DynamicChapterComments
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02 Aug 2007 - 09:57 - r1.2
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NoelWelsh
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TMPL:P{"chaptercommenttip"} STARTINCLUDE Comments See StringEval in StringChapter for how to evaluate code stored in a string. STOPINCLUDE |
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ThreadSuspendingCurrentThread
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20 Jul 2007 - 17:04 - r1.2
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EricHanchrow
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STARTINCLUDE Suspending the Current Thread Problem You wish to indefinitely suspend the current thread Solution There are two good solutions: begin scheme (sync ... |
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