created by

Alexandre Viau

script type

utility

description

See latest version on github: https://github.com/viaa/VimPlugins Documentation Name: basicXmlParser.vim Version: 1.1 Description: Plugin create object trees and get them or save them as xml, and to create object trees from a xml files. May be used as an object tree, the xml is the file format for load and save the object tree from and to a file. Serialization to xml is optional, the user is not required to load or to save to xml, the tree may be builded manually or programmatically. This plugin was created as a utility plugin to load and save configuration files. See the usage section on how to use the plugin. Author: Alexandre Viau (alexandreviau@gmail.com) Installation: Copy the plugin to the vim plugin directory. Usage: The following examples create, save to file and load from file the following xml tree: <root>    <Marks>       <A>          C:\Usb\i_green\apps          <myLevel3>             myLevel3Value             <myLevel4>                myLevel4Value             </myLevel4>          </myLevel3>       </A>       <B>          C:\Users\User\Desktop\       </B>       <C>          C:\       </C>    </Marks>    <LastPath>       d:\    </LastPath> </root> <item name="root">    <item name="Marks">       <item name="A">          C:\Usb\i_green\apps          <item name="myLevel3">             myLevel3Value             <item name="myLevel4">                myLevel4Value             </item>          </item>       </item>       <item name="B">          C:\Users\User\Desktop       </item>       <item name="C">          C:\       </item>    </item>    <item name="LastPath">       d:\    </item> </item> Create object trees and get them or save them as xml NOTE: Since the objects are really dictionaries, vim offers 2 syntaxes to interact with their content. One is like this for example "myRoot.LastPath.Value" the other is "myRoot['LastPath'].Value", in the following examples the first syntax is used but the second would work too. Root level let myRoot = g:Item.New() First level cal myRoot.Add(g:Item.New2('LastPath', 'd:')) echo myRoot.LastPath.Value cal myRoot.Add(g:Item.New1('Marks')) echo myRoot.Marks.Value Second level cal myRoot.Marks.Add(g:Item.New2('A', 'C:\Usb\i_green\apps')) cal myRoot.Marks.Add(g:Item.New2('B', 'C:\Users\User\Desktop')) cal myRoot.Marks.Add(g:Item.New2('C', 'C:')) echo myRoot.Marks.A.Value echo myRoot.Marks.B.Value echo myRoot.Marks.C.Value Show how many items there is in the second level echo myRoot.Marks.Count() Third level cal myRoot.Marks.A.Add(g:Item.New2('myLevel3', 'myLevel3Value')) echo myRoot.Marks.A.myLevel3.Value Show how many items there is in the third level echo myRoot.Marks.A.Count() Fourth level cal myRoot.Marks.A.myLevel3.Add(g:Item.New2('myLevel4', 'myLevel4Value')) echo myRoot.Marks.A.myLevel3.myLevel4.Value To get the xml as a list let myXmlList = myRoot.ToXmlList() echo myXmlList To save the xml to a file cal myRoot.SaveToXml('c:/temp/cfg.xml') Remove an item cal myRoot.Marks.Remove('A') echo myRoot.Marks.A.Value " Should give an error saying that the key cannot be found Check for existance of an item if myRoot.Marks.Contains('A') == 1   echo "Contains the item A" else   echo "Dosen't contain the item A" endif Example to copy from third level to a new root. The "Clone()" method does a complete copy of the current item, without cloning, the affected variable becomes a refrence and modifying it would modify the original item as well. So use the "Clone()" methods if an independent copy is needed. let myRoot2 = myRoot.Marks.A.myLevel3.Clone() Display value from new root, now what was 4th level is now first level echo myRoot2.myLevel4.Value Create object trees from a xml files NOTE: Since the objects are really dictionaries, vim offers 2 syntaxes to interact with their content. One is like this for example "myRoot.LastPath.Value" the other is "myRoot['LastPath'].Value", in the following examples the first syntax is used but the second would work too. Load the file created in the previous example let myRoot2 = g:Item.LoadFile('c:/temp/cfg.xml') Show some elements from the loaded xml file echo myRoot2.LastPath.Value echo myRoot2.Marks.A.Value echo myRoot2.Marks.B.Value echo myRoot2.Marks.A.myLevel3.Value echo myRoot2.Marks.A.myLevel3.myLevel4.Value echo myRoot2.Marks.C.Value echo myRoot2.Marks.Value Create object trees from expressions There is another way of creating the object trees using expressions, the "g:RootItem.LoadFile()" function is an example how to do this. By expressions, I mean that something like exe 'cal items.Items' . level . '.Add(g:Item.New("' . tag . '", ""))' may be used where the "level" variable would contain a string of the path to the items like for example "myItem1.Items.myItem2.Items". Todo: 1. Automatically put every tag and values each on his own line (it should be like this to be parsed correctly) 2. Get multiline values inside tags 3. Add some kind of iterator (like in the configuration utility with an ienumerator syntax) to loop the items (without having to check in the client code that the value is a dictionary) See ShowMarks function in vimExplorer where a check for dictionary type is needed and checking if dictionary empty and also a key, value foreach loop dosen't work, the value is not set and there is need to get it using the full g:VeCfg.Mark[key].Value    Or at least find a way to filter out the items that are not dictionaries using the filter command.    Give examples how to iterate items in the usage section     4. Maybe find a way that to get or set a value that does not exist a check and creation would not be needed in the client code (maybe through a function) History: 1.0 Initial release 1.1 Added a function to remove items from the tree "g:Item.Remove(name)" by specifying its name in parameter     Added the "Contains(name)" function to check existance of an item     Changed the file format to display the xml tree with each tag being an "item" tag having a name attribute instead of having the name as the tag itself. One avantage of this format is to being able to have a "/" in the tag name. So a xml tree formely in a format like this: <root>    <Marks>       <A>          C:\Usb\i_green\apps          <myLevel3>             myLevel3Value             <myLevel4>                myLevel4Value             </myLevel4>          </myLevel3>       </A>       <B>          C:\Users\User\Desktop\       </B>       <C>          C:\       </C>    </Marks>    <LastPath>       d:\    </LastPath> </root> is now in a format like this: <item name="root">    <item name="Marks">       <item name="A">          C:\Usb\i_green\apps          <item name="myLevel3">             myLevel3Value             <item name="myLevel4">                myLevel4Value             </item>          </item>       </item>       <item name="B">          C:\Users\User\Desktop       </item>       <item name="C">          C:\       </item>    </item>    <item name="LastPath">       d:\    </item> </item>

install details

Installation: Copy the plugin to the vim plugin directory.

Click on the package to download.

package	script version	date	Vim version	user	release notes
basicXmlParser.vim	1.1	2013-01-19	7.0	Alexandre Viau	Added a function to remove items from the tree "g:Item.Remove(name)" by specifying its name in parameter Added the "Contains(name)" function to check existance of an item Changed the file format to display the xml tree with each tag being an "item" tag having a name attribute instead of having the name as the tag itself. One avantage of this format is to being able to have a "/" in the tag name. So a xml tree formely in a format like this: <root>    <Marks>       <A>          C:\Usb\i_green\apps          <myLevel3>             myLevel3Value             <myLevel4>                myLevel4Value             </myLevel4>          </myLevel3>       </A>       <B>          C:\Users\User\Desktop\       </B>       <C>          C:\       </C>    </Marks>    <LastPath>       d:\    </LastPath> </root> is now in a format like this: <item name="root">    <item name="Marks">       <item name="A">          C:\Usb\i_green\apps          <item name="myLevel3">             myLevel3Value             <item name="myLevel4">                myLevel4Value             </item>          </item>       </item>       <item name="B">          C:\Users\User\Desktop       </item>       <item name="C">          C:\       </item>    </item>    <item name="LastPath">       d:\    </item> </item>
basicXmlParser.vim	1.0	2013-01-02	7.0	Alexandre Viau	Initial upload

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