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| = SevenZip = {{{SevenZip}}} is part of the CategoryAplTree project. <<TableOfContents>> == Warning == || /!\ Unfortunately a bug in 7-zip was discovered that makes it impossible to make use of it || For details see the [[http://aplwiki.com/SevenZip/ProjectPage | project page ]] |
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| The class "SevenZip" relies on an installed version of the Open Source zipper [[http://www.7-zip.org/ | 7zip]]. | |
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| [[TableOfContents]] | The class makes it very easy to zip as well as unzip stuff. |
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| INI files are still useful to provide settings to an application. Vista is not going to change this. | "SevenZip" suppports the following formats: * 7z * split * zip * gzip * bzip2 * tar |
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| The Windows API methods provided to read a particular value have an advantage: they follow a clearly defined search path, and following that path they take not only the INI file into account, they also check the Windows registry and the command line parameter. Furthermore, they deliver always up-to-date values. | You can either specify an appropriate extension or set the "type" property in order to enforce a certain format. |
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| They have disadvantages as well: * They are slow * They return everything as a string If you are not interested in the Windows registry and command line parameters, and if nobody else is changing your INI files while your application is running, then the "!IniFile" class introduced in this article might attract your attention. This class allows you to use a kind of APL-Syntax in your INI files. Values not enclosed in quotes will be converted to numbers, everything else gets a string. == Details == === Character Values === An entry like: {{{HomeFolder='C:/Windows/Appl/'}}} results in a string holding the path. === Numeric Values === An entry like: {{{FormSize=300 400}}} results in a two-element-vector "!FormSize" holding two integers. === References === Furthermore, an entry like: {{{LogFolder='{"HomeFolder}Logsfiles/'}}} is treated in a special way: the name between the curlies is taken as the name of an already defined value. It is then replaced by the value of that entry. == Example == === Creating an Instance === After creating an instance from the class: {{{MyIni←⎕New #.IniClass (,⊂'C:/Appl/Example.ini')}}} === Accessing Data with the "Get" method === you can get all information you are interested in by calling the method "Get". Note that names are '''not''' case sensitive. Given this file "Example.ini": |
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| [GENERAL] MaxNoOfErrors=20 FormSize=800 1200 LogfileFlag=1 LogLevels=1 2 3 ; from 1 to 9 [DIR] Home='C:/mainfolder/' AppFolder='{Home}appls/' DocsFolder='{Home}docs/' LogFileFolder='{Home}Logs/' |
myZipper←⎕new #.SevenZip (,⊂'MyZipFile') ⎕←myZipper [SevenZip@MyZipFile] myZipper.Add 'foo.txt' ⎕←myZipper.List 0 foo.txt myZipper.Unzip 'c:\output\' |
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| You can get any level of information you are interested in: | == Project Page == |
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| * get everything * get only a particular section * get a particular value in a particular section |
For bug reports, future enhancements and a full version history see SevenZip/ProjectPage |
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| ==== Examples with "Get" ==== | == Version Information == ||Original author: ||KaiJaeger || ||Responsible: ||KaiJaeger || ||Email: || kai@aplteam.com || |
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| {{{ MyIni.Get ⍬ ⍬ GENERAL MAXNOOFERRORS 20 FORMSIZE 800 1200 LOGFILEFLAG 1 LOGLEVELS 1 2 3 DIR HOME C:/mainfolder/ APPFOLDER C:/mainfolder/appls/ DOCSFOLDER C:/mainfolder/docs/ LOGFILEFOLDER C:/mainfolder/Logs/ MyIni.Get'General' ⍬ MAXNOOFERRORS 20 FORMSIZE 800 1200 LOGFILEFLAG 1 LOGLEVELS 1 2 3 MyIni.Get'General' 'FormSize' 800 1200 ¯1 MyIni.Get'General' 'Unknown' ⍝ with default ¯1 MyIni.Get'General' 'Unknown' ⍝ without default Value Error: "Unknown" myDoc.Get'General' 'Unknown' }}} === Indexing === Since version 1.1, the class provides a default property. That means you can access values by indexing. Examples (with the same INI file listed above): {{{ MyIni[⊂'GeneRAL:'] 20 800 1200 1 1 2 3 ⊃MyIni[⊂'GeneRAL:FormSize'] 800 1200 }}} === Assigning === ⊃MyIni[⊂'GeneRAL:FormSize']←12 23 === The "Put" method === (12 23) MyIni.Put 'GeneRAL:FormSize' === The "Save" method === You can also change a particular value but the changed value will persist only if you execute the "Save" method at some point: {{{ MyIni[⊂'GeneRAL:FormSize']←⊂'¯1 1000 MyIni.Save }}} ==== A Warning ==== However, an INI file is by definition not a kind of database and should '''not''' be used to save data by the application itself. The "Save" method '''might''' be useful to initialise an INI file. === Check Keys before indexing === Note that using indexing, there is no default. That means that specifying an unknown value leads to an error. There are two ways to escape this problem: {{{ MyIni.Exist 'General:Unknown' 0 MyIni.Default← ¯1 ¯1 MyIni[⊂'General:Unknown'] ¯1 ¯1 MyIni[⊂'General:Unknown']←200 MyIni[⊂'General:Unknown'] 200 }}} ||Original author:||KaiJaeger|| ||Responsible:||KaiJaeger|| ||Email:||kai@aplteam.com|| ||Current state:||1.1|| Goto the IniFileDownloadPage == Creating an INI file == |
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| CategoryOpenSourceApl CategoryAplAplDyalog | CategoryAplTree |
SevenZip
SevenZip is part of the CategoryAplTree project.
Warning
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![/!\](/moin_static198/dyalog/img/alert.png "/!\"){kind=small}
Unfortunately a bug in 7-zip was discovered that makes it impossible to make use of it For details see the project page
Overview
The class "SevenZip" relies on an installed version of the Open Source zipper 7zip.
The class makes it very easy to zip as well as unzip stuff.
"SevenZip" suppports the following formats:
- 7z
- split
- zip
- gzip
- bzip2
- tar
You can either specify an appropriate extension or set the "type" property in order to enforce a certain format.
myZipper←⎕new #.SevenZip (,⊂'MyZipFile')
⎕←myZipper
[SevenZip@MyZipFile]
myZipper.Add 'foo.txt'
⎕←myZipper.List 0
foo.txt
myZipper.Unzip 'c:\output\'
Project Page
For bug reports, future enhancements and a full version history see SevenZip/ProjectPage
Version Information
Original author: |
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Responsible: |
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Email: |