Tamino XQuery User Guide - Software AG Documentation

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Text Retrieval Rules for Searches Using Phonetic Values and Stemming For queries that involve phonetics and stemming, Tamino internally uses the same mechanism, implemented as a finite-state machine, that rewrites the function argument according to a set of rules. These rules are described by XML schemas stored in the collection ino:vocabulary and have the names PHONRULES and STEMRULES: This is the schema for PHONRULES: This is the schema for STEMRULES: So a set of rules consists of a series of ino:phonrule or ino:stemrule elements. The semantics of a rule are determined by its attributes, all of which are mandatory: 94 XQuery User Guide
Text Retrieval ■ Location The attributes ino:phonType and ino:stemType define the part of word affected by the rule: This is one of the values "SUFFIX", "INFIX" or "PREFIX" ■ Character Substitution These attributes define the characters to look for and their replacement: ■ The attributes ino:phonChars and ino:stemChars define the sequence of characters to look for in a string ■ The attributes ino:phonReplaceChars and ino:stemReplaceChars define the substitution string. ■ State Machine Control These attributes control the way the state machine is treating this rule: ■ The attributes ino:phonStage and ino:stemStage define the state in which the rule will be active. The attribute value is a number from 1 to n. In most of the rules there will be no state change. ■ The attributes ino:phonNextStage and ino:stemNextStage define the next state when the rule has fired. If the value is "0" the machine stops and the result is computed. ■ Restrictions If a restriction is violated, the rule will not be executed. ■ The attributes ino:phonMinChars and ino:stemMinChars define the minimum length of the word fragment for the rule to be applied. ■ The attributes ino:phonReqs and ino:stemReqs define the minimum number of syllables in the word fragment for the rule to be applied. For ino:phonReqs this is practically always the value "0". The order of the rules is significant. The following stem rules protect the substitution of "EAR": XQuery User Guide 95
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Tamino XQuery User Guide Version 9.
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Table of Contents Preface .........
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Preface This document describes how
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1 Sample bib This doctype describes
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2 Sample reviews This doctype descr
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3 Query Examples ■ Using Construc
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Query Examples This section contain
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Query Examples Explanation Again, a
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Query Examples Explanation Building
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Query Examples Explanation A join i
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Query Examples Deleting Nodes The f
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Query Examples Explanation For the
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4 The Nuts and Bolts of XQuery ■
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The Nuts and Bolts of XQuery (1, 2,
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The Nuts and Bolts of XQuery Path E
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The Nuts and Bolts of XQuery NodeTe
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The Nuts and Bolts of XQuery Since
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FLWOR Expressions Currently, there
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FLWOR Expressions The order by and
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Performing Update Operations In Tam
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Performing Update Operations Renami
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Performing Update Operations Schema
Page 50 and 51: Performing Update Operations Note:
Page 52 and 53: Performing Update Operations update
Page 55 and 56: 7 Calling XQuery through a Web Serv
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Page 67 and 68: 8 CRUD Usage of a Tamino Doctype as
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Page 82 and 83: Advanced Usage This chapter covers
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Page 88 and 89: Advanced Usage Defining a Custom Ou
Page 91 and 92: 10 Text Retrieval ■ Simple Text S
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Page 97 and 98: Text Retrieval Data on the Web 34.
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Page 103 and 104: Text Retrieval perp whelp carnivore
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Page 107 and 108: Text Retrieval 1. Contents Translat
Page 109 and 110: Text Retrieval path separator is no
Page 111 and 112: III Related Information 105
Page 113 and 114: 11 Related Information ■ Internal
Page 115 and 116: Related Information ■ XQuery 1.0
Page 117 and 118: Index A atomization, 30 C character
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