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From: =?ISO-8859-1?Q?Karl_=D8ie?= <karl@gan.no>
Subject: Re: Lucene Search Result with Line Numbers?
Date: Mon, 11 Apr 2005 17:07:01 +0200
To: java-user@lucene.apache.org

Oh, forgot your last question, thats why the field "line" has to be=20
stored, upon query you have to get the "line" number from the document=20=

that represents the line and in "forward" / "back" actions you will=20
have sort the resultset by line value and print only chunks of that=20
result.

Mvh Karl =D8ie

> Another question:
>   If we need to present the search result with the hit lines plus n
> lines forward and backword, how can I do this if each lines are
> seperated in each document?
>   for example:
>
>  1. contents in crash.java are:
>       public class crash {
>           public static void main(String[] args) {
>           }
>       }
>  2. query "main"
>  3. search result=3D the hit line +1 line and -1 line
>      1 public class crash {
>      2    public static void main(String[] args) {
>      3   }
>
> On Apr 11, 2005 8:28 PM, Karl =D8ie <karl@gan.no> wrote:
>> Most indexing creates a Lucene document for each Source document. =
What
>> would need is to create a Lucene document for each line.
>>
>> String src_doc =3D "crash.java";
>> int line_number =3D 0;
>> while(reader!=3DEOF) {
>>         String line =3D reader.readLine();
>>         Document ld =3D new Document();
>>         ld.add(new Field("id", src_doc, true, true, false));
>>         ld.add(new Field("line", ""+line_number, true, true, false));
>>         ld.add(new Field("text", line.toString(), false, true, =
true));
>>         index_writer.addDocument(ld);
>>         line_number++;
>> }
>>
>> This will create a small lucene document for each line, upon search=20=

>> you
>> will find documents based on the content of the line and the line
>> number as a field. The reason syntax highlighting works without
>> creating a lucene document for each line is because syntax=20
>> highlighting
>> bases its result on groups of occurencies of text, not line numbers.
>>
>> Mvh Karl =D8ie
>>
>
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>
- Real life should have a search function. I need my socks.


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