Ago: Uus lehekülg: ' import java.util.regex.Matcher; import java.util.regex.Pattern; public class XmlPArsingExample { public static void main(String[] args) { String xml = ...'

2015-03-26T10:54:47Z

Uus lehekülg: '<source lang="java"> import java.util.regex.Matcher; import java.util.regex.Pattern; public class XmlPArsingExample { public static void main(String[] args) { String xml = ...'

Uus lehekülg

<source lang="java">

import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class XmlPArsingExample {

public static void main(String[] args) {
String xml = "<root><books>"
+ "<book><title>Kevade</title><author>Luts</author></book>"
+ "<book><title>Sügis</title><author>Luts</author></book>"
+ "</books></root>";
System.out.println(xml);

// 1) manual
int pos = 0;
while (true) {
// otsi "<title>"
int titleStartPos = xml.indexOf("<title>", pos);
if (titleStartPos == -1) break; // ei leitud enam
// otsi "</title>"
int titleEndPos = xml.indexOf("</title>", pos);
// nende vahel on title
String title = xml.substring(titleStartPos + "<title>".length(), titleEndPos);
System.out.println(title);
pos = titleEndPos + 1;
}

// regex
/*
* x? - kas x on või ei ole. x 0 või 1 korda
* x+ - kas 1 või rohkem korda
* x* - kas 0 või rohkem korda
* x{3} - täpselt 3 korda
* x{3,5} - 3-5 korda
*
* . - suvaline sümbol
* [abc] - kas "a" või "b" või "c"
* [a-zA-Z] - vahemikuga
* [0-9] - üks number
* [^abs] - kõik sümbolid, mis ei ole a, b, s
*
* [a-z]+ - abc
*
* \( - otsib "("
* () - grupeerimine
*
*/
match("this is grey colouuuur ", "[a-z]{3}");
match("01001010101000", "(01)+");
match(xml, "(<t(it)le>)(.*)");
match(xml, "<title>(.*)</title>");
match("AtereB Atere2B AtereB", "A([^B]*)B");
/*
String s = "this is grey colouuuur ";
Pattern p = Pattern.compile("[a-z]{2,4}");
Matcher m = p.matcher(s);
while (m.find()) {
System.out.println("found at: " + m.start() + " ends at:" + m.end());
System.out.println(m.group(0));
}
*/
}

public static void match(String s, String pattern) {
System.out.println("----");
System.out.println("s:" + s);
System.out.println("pattern:" + pattern);
Pattern p = Pattern.compile(pattern);
Matcher m = p.matcher(s);
while (m.find()) {
System.out.println("found at: " + m.start() + " ends at:" + m.end());
System.out.println(m.group(0));
for (int i = 1; i <= m.groupCount(); i++) {
System.out.println("group " + i + ": " + m.group(i));
}
}

}

}

</source>

ITI0011:praktikum 16 G5 - Redigeerimiste ajalugu

Ago: Uus lehekülg: ' import java.util.regex.Matcher; import java.util.regex.Pattern; public class XmlPArsingExample { public static void main(String[] args) { String xml = ...'