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Extracting Data from a File

 
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Old 07-31-2007
Extracting Data from a File
Hi

I need to calculate the number of occurrences of a item in a number of files using Perl.
The item appears continually throughout the files but in each case I only want to calculate it in certain blocks of the file.
Example - Calculalte the number of occurrences of a 'pass' in a block of code which starts with 'Start' and end with 'Finish'.
It is not possible to say start at line 1 and count the number of occurrences of the item until you reach line 5 as the files are all different sizes and the block is located at different places in all the files.

I'm sure this is possible but I just can't seem to get my head around this Perl scripting

Any help would be great
OOP
 
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LEARN ABOUT DEBIAN

file::changenotify::configdata

File::ChangeNotify::ConfigData(3pm)			User Contributed Perl Documentation		       File::ChangeNotify::ConfigData(3pm)

NAME

       File::ChangeNotify::ConfigData - Configuration for File::ChangeNotify

SYNOPSIS

	 use File::ChangeNotify::ConfigData;
	 $value = File::ChangeNotify::ConfigData->config('foo');
	 $value = File::ChangeNotify::ConfigData->feature('bar');

	 @names = File::ChangeNotify::ConfigData->config_names;
	 @names = File::ChangeNotify::ConfigData->feature_names;

	 File::ChangeNotify::ConfigData->set_config(foo => $new_value);
	 File::ChangeNotify::ConfigData->set_feature(bar => $new_value);
	 File::ChangeNotify::ConfigData->write;  # Save changes

DESCRIPTION

       This module holds the configuration data for the "File::ChangeNotify" module.  It also provides a programmatic interface for getting or
       setting that configuration data.  Note that in order to actually make changes, you'll have to have write access to the
       "File::ChangeNotify::ConfigData" module, and you should attempt to understand the repercussions of your actions.

METHODS

       config($name)
	   Given a string argument, returns the value of the configuration item by that name, or "undef" if no such item exists.

       feature($name)
	   Given a string argument, returns the value of the feature by that name, or "undef" if no such feature exists.

       set_config($name, $value)
	   Sets the configuration item with the given name to the given value.	The value may be any Perl scalar that will serialize correctly
	   using "Data::Dumper".  This includes references, objects (usually), and complex data structures.  It probably does not include
	   transient things like filehandles or sockets.

       set_feature($name, $value)
	   Sets the feature with the given name to the given boolean value.  The value will be converted to 0 or 1 automatically.

       config_names()
	   Returns a list of all the names of config items currently defined in "File::ChangeNotify::ConfigData", or in scalar context the number
	   of items.

       feature_names()
	   Returns a list of all the names of features currently defined in "File::ChangeNotify::ConfigData", or in scalar context the number of
	   features.

       auto_feature_names()
	   Returns a list of all the names of features whose availability is dynamically determined, or in scalar context the number of such
	   features.  Does not include such features that have later been set to a fixed value.

       write()
	   Commits any changes from "set_config()" and "set_feature()" to disk.  Requires write access to the "File::ChangeNotify::ConfigData"
	   module.

AUTHOR

       "File::ChangeNotify::ConfigData" was automatically created using "Module::Build".  "Module::Build" was written by Ken Williams, but he
       holds no authorship claim or copyright claim to the contents of "File::ChangeNotify::ConfigData".

perl v5.14.2							    2012-04-14				       File::ChangeNotify::ConfigData(3pm)