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XPath: Navigating XML with XPath 1.0 and 2.0 Kick Start

Name: XPath: Navigating XML with XPath 1.0 and 2.0 Kick Start
Author: Steven Holzner
ISBN: 0672324113

by Steven Holzner

December 2003

Intermediate to advanced

384 pages

7h 10m

English

Sams

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Copyright
Dedication
About the Author
Acknowledgments
We Want to Hear from You!
Foreword
Introduction
What's in This Book?Who This Book Is ForConventions Used in This BookSource Code
1. Essential XPath
Why XPath?XPath in OverviewXPath 1.0XPath 2.0XPath BasicsIntroducing Location PathsXPath at WorkThe XPath VisualiserThe Interactive Expression BuilderXPath and .NETThe XPath ExplorerThe XPath TesterThe Xalan XPath ApplicationXPath with XSLTCreating a TemplateThe xsl:apply-templates ElementGetting the Value of Nodes with xsl:value-ofWorking with AttributesXPath with XQueryXPath with XPointer and XLinkXPath ResourcesIn Brief
2. The XPath Data Model
Understanding the XPath 1.0 Data TypesNumbersStringsBooleansNode-SetsUnderstanding NodesXPath Node TypesThe Root NodeElement NodesAttribute NodesProcessing Instruction NodesComment NodesText NodesNamespace NodesNode NamesNode String ValuesDocument OrderWorking with Node-SetsString Value of Node-SetsXPath Node TreesXPath and XML InfosetsDOM Level 3 XPathIn Brief
3. Location Steps and Paths
Understanding Location Steps and PathsThe Parts of a Location StepXPath AxesXPath Node TestsXPath PredicatesSome Examples of XPath Location PathsUsing XPath Abbreviated SyntaxUsing the XPath AxesUsing the ancestor AxisUsing the ancestor-or-self AxisUsing the descendant AxisUsing the descendant-or-self AxisUsing the following AxisUsing the following-sibling AxisUsing the namespace AxisUsing the parent AxisUsing the preceding AxisUsing the preceding-sibling AxisUsing the self AxisCreating Compound Location PathsNesting PredicatesUsing Predicates Without OperatorsIn Brief
4. XPath 1.0 Functions and Operators
The XPath Boolean Operators and FunctionsThe boolean FunctionThe false FunctionThe lang FunctionThe not FunctionThe true() FunctionThe XPath Numeric Operators and FunctionsThe ceiling FunctionThe floor FunctionThe number FunctionThe round FunctionThe sum FunctionThe XPath String Operators and FunctionsThe concat FunctionThe contains FunctionThe normalize-space FunctionThe starts-with FunctionThe string FunctionThe string-length FunctionThe substring FunctionThe substring-after FunctionThe substring-before FunctionThe translate FunctionThe XPath Node-Set Operators and FunctionsThe count FunctionThe id FunctionThe last FunctionThe local-name FunctionThe name FunctionThe namespace-uri FunctionThe position FunctionIn Brief

5. XPath with XSLT
Working with XSLTTechniques for Performing XSLT TransformationsCreating StylesheetsCreating TemplatesApplying Templates for Child NodesUsing <xsl:value-of>Using <xsl:for-each>Understanding the match and select AttributesCopying NodesUsing the <xsl:copy> ElementThe <xsl:copy-of> ElementHandling WhitespaceMaking Choices with <xsl:if> and <xsl:choose>Understanding the Default Template RulesDisplaying Messages While Processing XSLT StylesheetsSetting Output Document TypeIn Brief
6. XPath with XPointer, XLink, and XQuery
Data Access Using XPathIntroducing XLinksUsing XLink AttributesUsing the xlink:type AttributeUsing the xlink:show AttributeUsing the xlink:actuate AttributeUsing the xlink:href AttributeIntroducing XPointersUsing BarenamesUsing the Element SchemeUsing the Namespace SchemeUsing the General XPointer SchemeCreating XPointer PointsCreating XPointer RangesIntroducing XQueryIn Brief
7. Introducing XPath 2.0
What's New in XPath 2.0?Handling NodesHandling Data TypesWorking with SequencesThe for ExpressionThe if ExpressionThe some and every ExpressionsUnions, Intersections, and DifferencesCommentsCreating Some XPath 2.0 ExamplesUnderstanding the XPath Data ModelDocument NodesElement NodesAttribute NodesNamespace NodesProcessing Instruction NodesComment NodesText NodesAtomic ValuesIn Brief
8. XPath 2.0 Expressions and Operators
Creating Primary ExpressionsLiteralsVariablesParenthesized ExpressionsFunction CallsContext Item ExpressionsCreating Arithmetic ExpressionsCreating Path ExpressionsXPath 2.0 AxesXPath 2.0 Node TestsXPath 2.0 PredicatesXPath 2.0 Abbreviated SyntaxCreating Sequence ExpressionsCreating SequencesCombining SequencesThe union OperatorThe intersect OperatorThe except OperatorCreating Comparison ExpressionsValue ComparisonsGeneral ComparisonsNode ComparisonsOrder ComparisonsCreating Logical ExpressionsCreating for ExpressionsCreating Conditional ExpressionsCreating Quantified ExpressionsUsing the some ExpressionUsing the every KeywordCreating Expressions That Work on Typesinstance ofcastcastabletreatIn Brief
9. The XPath 2.0 Numeric, Constructor, and Context Functions
Introducing the XPath 2.0 FunctionsFunction NamespacesUsing Accessor FunctionsThe fn:node-name FunctionThe fn:string FunctionThe fn:data FunctionThe fn:base-uri FunctionThe fn:document-uri FunctionUsing the fn:error FunctionConstructor FunctionsUsing Context FunctionsThe fn:position FunctionThe fn:last FunctionThe fn:current-dateTime FunctionThe fn:current-date FunctionThe fn:current-time FunctionUsing Numeric FunctionsThe fn:floor FunctionThe fn:ceiling FunctionThe fn:round FunctionThe fn:round-half-to-even FunctionIn Brief
10. XPath 2.0 String Functions
Working on StringsThe fn:compare FunctionThe fn:concat FunctionThe fn:string-join FunctionThe fn:starts-with FunctionThe fn:ends-with FunctionThe fn:contains FunctionThe fn:substring FunctionThe fn:string-length FunctionThe fn:substring-before FunctionThe fn:substring-after FunctionThe fn:normalize-space FunctionThe fn:normalize-unicode FunctionThe fn:upper-case FunctionThe fn:lower-case FunctionThe fn:translate FunctionThe fn:escape-uri FunctionUnicode Code Point FunctionsThe fn:codepoints-to-string FunctionThe fn:string-to-codepoints FunctionUsing Pattern MatchingUnderstanding Regular ExpressionsXPath 2.0 Versus XML Schema DifferenceThe fn:matches FunctionThe fn:replace FunctionThe fn:tokenize FunctionIn Brief
11. XPath 2.0 Boolean, QName, and Date Functions
Boolean FunctionsThe fn:true FunctionThe fn:false FunctionThe fn:not FunctionFunctions That Work with Dates and TimesFunctions That Extract Data from Date/Time ValuesThe fn:get-years-from-yearMonthDuration FunctionThe fn:get-months-from-yearMonthDuration FunctionThe fn:get-days-from-dayTimeDuration FunctionThe fn:get-hours-from-dayTimeDuration FunctionThe fn:get-minutes-from-dayTimeDuration FunctionThe fn:get-seconds-from-dayTimeDuration FunctionThe fn:get-year-from-dateTime FunctionThe fn:get-month-from-dateTime FunctionThe fn:get-day-from-dateTime FunctionThe fn:get-hours-from-dateTime FunctionThe fn:get-minutes-from-dateTime FunctionThe fn:get-seconds-from-dateTime FunctionThe fn:get-timezone-from-dateTime FunctionThe fn:get-year-from-date FunctionThe fn:get-month-from-date FunctionThe fn:get-day-from-date FunctionThe fn:get-timezone-from-date FunctionThe fn:get-hours-from-time FunctionThe fn:get-minutes-from-time FunctionThe fn:get-seconds-from-time FunctionThe fn:get-timezone-from-time FunctionFunctions That Adjust Time ZonesThe fn:adjust-dateTime-to-timezone FunctionThe fn:adjust-date-to-timezone FunctionThe fn:adjust-time-to-timezone FunctionSubtracting xs:dateTime ValuesThe fn:subtract-dateTimes-yielding-yearMonthDuration FunctionThe fn:subtract-dateTimes-yielding-dayTimeDuration FunctionFunctions That Work with QNamesThe fn:resolve-QName FunctionThe fn:expanded-QName FunctionThe fn:get-local-name-from-QName FunctionThe fn:get-namespace-uri-from-QName FunctionThe fn:get-namespace-uri-for-prefix FunctionThe fn:get-in-scope-prefixes FunctionIn Brief
12. XPath 2.0 Node and Sequence Functions
Using Node FunctionsThe fn:name FunctionThe fn:local-name FunctionThe fn:namespace-uri FunctionThe fn:number FunctionThe fn:lang FunctionThe fn:root FunctionThe XPath 2.0 Sequence FunctionsThe fn:zero-or-one FunctionThe fn:one-or-more FunctionThe fn:exactly-one FunctionThe fn:boolean FunctionThe fn:index-of FunctionThe fn:empty FunctionThe fn:exists FunctionThe fn:distinct-values FunctionThe fn:insert-before FunctionThe fn:remove FunctionThe fn:subsequence FunctionThe fn:unordered FunctionThe fn:deep-equal FunctionThe fn:count FunctionThe fn:avg FunctionThe fn:max FunctionThe fn:min FunctionThe fn:sum FunctionThe fn:id FunctionThe fn:idref FunctionThe fn:doc FunctionThe fn:collection FunctionIn Brief

Overview

XPath is to XML as SQL is to databases: XML applications need XPath to locate specific data within an XML document for further processing with other XML applications such as XSLT, XQuery, XPointer, XLink and DOM level 3. With XPath, these applications offer developers a full toolkit for transforming, linking, and searching XML data. Developers need to understand XPath to fully exploit XML in their applications, and they have few resources beyond the W3C specification. XPath Kick Start will examine every aspect of XPath in detail, including its influence on and use with these other XML standards.

With each technique illustrated with real-world examples, the book starts with coverage of the essentials of XPath, including nodes, expressions, functions and operators. The second half of the book details XPath in practice - from manipulating XML data to transforming, linking and querying XML documents.

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