Groups > comp.lang.java.programmer > #13322

Re: Parse a text file and match more than one line

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From	Jim Janney <jjanney@shell.xmission.com>
Newsgroups	comp.lang.java.programmer
Subject	Re: Parse a text file and match more than one line
Date	Mon, 02 Apr 2012 16:50:25 -0600
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mike <mikaelpetterson@hotmail.com> writes:

> Hi,
>
> I am trying to figure out how to use regexp in java to match this
> pattern:
>
>
> compile:
>     [javac] Compiling 933 source files to /tmp/gdduser/classes
>
> dft.properties:
>
> So I want to make sure I have:
>
> compile:
>     [javac] Compiling 933 source files to /tmp/gdduser/classes
> <<nothing on this line>>
>
> How can I use java to apply it? It will be something like, when
> "compile:" is found check that there is a [javac] Compiling .... on
> next line . If there is then I need to check if there is an empty
> line. If all conditions are fullfilled then I can I know that my build
> step is completed and I have a full match.
>
> Any ideas?
>
> br,
>
> //mike

If the file is not too large, you can read it all into a single string
and apply a regexp to that.  Otherwise, you've already sketched out a
workable approach.

In the general case, consider using a finite state machine.

-- 
Jim Janney

Thread

Parse a text file and match more than one line mike <mikaelpetterson@hotmail.com> - 2012-04-02 04:36 -0700
  Re: Parse a text file and match more than one line Knute Johnson <nospam@knutejohnson.com> - 2012-04-02 14:43 -0700
  Re: Parse a text file and match more than one line Martin Gregorie <martin@address-in-sig.invalid> - 2012-04-02 22:09 +0000
  Re: Parse a text file and match more than one line Jim Janney <jjanney@shell.xmission.com> - 2012-04-02 16:50 -0600
    Re: Parse a text file and match more than one line Jim Janney <jjanney@shell.xmission.com> - 2012-04-02 20:57 -0600
  Re: Parse a text file and match more than one line Roedy Green <see_website@mindprod.com.invalid> - 2012-04-02 15:53 -0700
  Re: Parse a text file and match more than one line Arne Vajhøj <arne@vajhoej.dk> - 2012-04-02 20:08 -0400

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