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POParse a string into serval variables
 

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  1. POParse a string into serval variables
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    <p>so i have a string that can look like this:</p> <pre><code>UPDATE 12.7543.81 ParmA="dk.asterix.org" [Denmark] (9.1) ParmB="de.asterix.org" [Germany] (1.0) Called=49xxxxxxx (GBH) Calling=45xxxxxxxx (LOA) Internal=0 State=2 UPDATE 12.7543.81 ParmB="de.asterix.org" [Germany] (1.0) ParmA="dk.asterix.org" [Denmark] (9.1) Called=49xxxxxxx (GBH) Calling=45xxxxxxxx (LOA) Internal=0 State=2 UPDATE 12.7543.81 Internal=0 State=2 ParmB="de.asterix.org" [Germany] (1.0) ParmA="dk.asterix.org" [Denmark] (9.1) Called=49xxxxxxx (GBH) Calling=45xxxxxxxx (LOA) UPDATE 12.7543.81 Internal=0 State=2 ParmB="de.asterix.org" [Germany] (1.0) Calling=45xxxxxxxx (LOA) ParmA="dk.asterix.org" [Denmark] (9.1) Called=49xxxxxxx (GBH) </code></pre> <p>all compleetly randomly added to the list, however they still follow 1 specific chunk pattern:</p> <pre><code>xxx = String ddd = decimal iii = integer chunk 1: UPDATE chunk 2: xxx.xxx.xxx chunk x: ParmA="xxx" [xxx] (ddd) chunk x: ParmB="xxx" [xxx] (ddd) chunk x: Calling=xxx (xxx) chunk x: Called=xxx (xxx) chunk x: Internal=iii chunk x: State=iii </code></pre> <p>i wanted to extract all the string data into variables, however a regex don't like a random order, so i was thinking of using split(" "), and cykle trough each Word.</p> <p>but i Thord before i started doing that, i could ask if there was another way to extract the data?</p> <p>idea to seperate chunks example:</p> <pre><code>import java.util.ArrayList; import java.util.List; public class Test { final static String[] lines = new String[]{ "UPDATE 12.7543.81 ParmA=\"dk.asterix.org\" [Denmark] (9.1) ParmB=\"de.asterix.org\" [Germany] (1.0) Called=49xxxxxxx (GBH) Calling=45xxxxxxxx (LOA) Internal=0 State=2", "UPDATE 12.7543.81 ParmB=\"de.asterix.org\" [Germany] (1.0) ParmA=\"dk.asterix.org\" [Denmark] (9.1) Called=49xxxxxxx (GBH) Calling=45xxxxxxxx (LOA) Internal=0 State=2", "UPDATE 12.7543.81 Internal=0 State=2 ParmB=\"de.asterix.org\" [Germany] (1.0) ParmA=\"dk.asterix.org\" [Denmark] (9.1) Called=49xxxxxxx (GBH) Calling=45xxxxxxxx (LOA)", "UPDATE 12.7543.81 Internal=0 State=2 ParmB=\"de.asterix.org\" [Germany] (1.0) Calling=45xxxxxxxx (LOA) ParmA=\"dk.asterix.org\" [Denmark] (9.1) Called=49xxxxxxx (GBH)" }; public static void main(String[] args){ for(String line : lines){ String[] parms = splitParm(line); for(String parm : parms){ System.out.println(parm); } } } static public String[] splitParm(String text){ String[] textarr = text.split(" "); List&lt;String&gt; parms = new ArrayList&lt;&gt;(); parms.add(textarr[0]); // UPDATE parms.add(textarr[1]); // 12.7543.81 for(int i = 2;i&lt;textarr.length;i++){ if(textarr[i].matches("^([A-Za-z]+)=([\\S ]+)$")){ parms.add(textarr[i]); } else{ parms.set(parms.size()-1, parms.get(parms.size()-1) + " "+textarr[i]); } } return parms.toArray(new String[]{}); } } </code></pre>
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    1. COAre all chunks mandatory or some of them are optional?
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    2. COYou could or expressions for each possibility together, e.g. `chunk1 chunk2 (Parm[AB]...|Calling...|Called...|Internal...|State...)+` (This would allow more than one occurrence of each chunk and for any of them to be missing, however.)
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    3. COall chunks are required once, and no more :)
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