XML formatted by XSL (XML to custom node collapsed display)

Introduction

Sometimes we want to see the system generated XML files (such as the XML format of the project file), if the file structure is simple, our browser seems to be more convenient, but as the XML Schema complex becomes a headache, write a program alone to show and a little fuss. XSL is then used to embody its value, and of course XSL is not just for display, but for more purposes to generate another format of XML or other format files from one format. This article only speaks of formatting.

The XSL common element xsl:template defines the transformation template for the matching node, and the attribute match= "XPath expression" to define the element that the template matches

The template that matches the root node is defined as follows

<xsl:template match= "/" ></xsl:template>

The Xsl:for-each loop shows the conversion of the select= "XPath expression" selection node (similar to the foreach statement in the programming language),

The following example selects the sub-elements below pets and loops through the names of the child elements:

<xsl:for-each select= "/pets/*" ><xsl:value-of select= "name ()"/></xsl:for-each>

xsl:if element Condition display nodes (like if statements in programming languages) Note that the less than sign greater than sign is used < and > instead

<xsl:if test= "@weight &lt; Ten "><i>its weight is less than km</i></xsl:if>

Xsl:choose Multi-branch conditional display (similar to a switch statement in a programming language)

<xsl:choose ><xsl:when test= "name () = ' pig '" ><i>this is a pig</i></xsl:when><xsl:o Therwise>  <i>this is not a pig</i></xsl:otherwise></xsl:choose>

XSL:VALUE-OF displays the value of the selected node or attribute

Select child node Price

<xsl:value-of select= "Pets/*/price"/>

Select attribute Weight

<xsl:value-of select= "pets/*/@weight"/>

Xsl:attribute constructing the attributes of an XML node

Used to add attributes to a node, such as:

<font><xsl:attribute name= "Color" ><xsl:value-of select= "pets/*/@color"/></xsl:attribute> </font>

Output <font color= "Red" ></font>

Xsl:apply-templates Application Template

If the XML file structure is complex, you can define multiple templates and then use the <xsl:apply-templates> tag to apply the template, Xsl:apply-templates can specify properties select= "XPath" To select the template to apply, or select to indicate the template that selects the current node.

XSL all elements

Elements	Description	IE	N
Element ">apply-imports	Apply template rules from the imported style sheet.	6.0
Element ">apply-templates	Applies a template to the current element or to the child elements of the current element.	5.0	6.0
Element ">attribute	Adds an attribute to an element.	5.0	6.0
Element ">attribute-set	Creates a named set of properties.	6.0	6.0
Element ">call-template	Invokes a specified template.	6.0	6.0
Element ">choose	Used in conjunction with <when> and <otherwise> to express multiple condition tests.	5.0	6.0
Element ">comment	Create a comment node in the result tree.	5.0	6.0
Element ">copy	Creates a backup of the current node (No child nodes and attributes).	5.0	6.0
Element ">copy-of	Creates a backup of the current node (with child nodes and attributes).	6.0	6.0
Element ">decimal-format	Defines the characters and symbols to use when converting numbers to strings through the Format-number () function.	6.0
Element ">element	Creates an element node in the output document.	5.0	6.0
Element ">fallback	If the processor does not support an XSLT element, specify a backup code to run.	6.0
Element ">for-each	Iterates through each node in the specified set of nodes.	5.0	6.0
Element ">if	Contains a template that is applied only when a specified condition is true.	5.0	6.0
Element ">import	Used to pour content from one style sheet into another style sheet.	6.0	6.0
Element ">include	Include the contents of one style sheet in another style sheet.	6.0	6.0
Element ">key	Declares a named key.	6.0	6.0
Element ">message	Write a message to the output (for error reporting).	6.0	6.0
Element ">namespace-alias	Replace namespaces in the style sheet with different namespaces in the output.	6.0
Element ">number	The integer position of the current node is measured and the number is formatted.	6.0	6.0
Element ">otherwise	Specifies the default action for the <choose> element.	5.0	6.0
Element ">output	Defines the format of the output document.	6.0	6.0
Element ">param	Declares a local or global parameter.	6.0	6.0
and element ">preserve-space	Used to define elements that preserve whitespace.	6.0	6.0
Element ">processing-instruction	Generates a processing instruction node.	5.0	6.0
Element ">sort	Sort the results.	6.0	6.0
and element ">strip-space	Defines an element that should remove whitespace characters.	6.0	6.0
and element ">stylesheet	Defines the root element of a style sheet.	5.0	6.0
Element ">template	The rule that is applied when the specified node is matched.	5.0	6.0
Element ">text	Generates a text node from a style sheet.	5.0	6.0
and element ">transform	Defines the root element of a style sheet.	6.0	6.0
Element ">value-of	Extracts the value of the selected node.	5.0	6.0
Element ">variable	Declares a local or global variable.	6.0	6.0
Element ">when	Specifies the action of the <choose> element.	5.0	6.0
Element ">with-param	Specifies the value of the parameter that needs to be passed into a template.	6.0	6.0

XSL Introduction mode IE browser supports direct introduction of XSL files directly into XML

<?xml-stylesheet type= "text/xsl" href= "icorenested.xsl"?>

Chorme Browser cannot load local XSL file directly

Reference can Chrome be made to perform an XSL transform on a local file

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Can Chrome be made to perform an XSL transform on a local file?
Nested collapsible blocks
XML formatted by XSL (XML to custom node collapsed display)