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OSSP var

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Variable Expansion

Abstract

OSSP var is a flexible, full-featured and fast variable construct expansion library. It supports a configurable variable construct syntax very similar to the style found in many scripting languages (like @name, ${name}, , etc.) and provides both simple scalar (${name}) and array (${name[index]}) expansion, plus optionally one or more post-operations on the expanded value (${name:op:op...}).

The supported post-operations are length determination, case conversion, defaults, postive and negative alternatives, sub-strings, regular expression based substitutions, character translations, and padding. Additionally, a meta-construct plus arithmetic expressions for index and range calculations allow (even nested) iterations over array variable expansions (..[..${name[#+1]}..]..). The actual variable value lookup is performed through a callback function, so OSSP var can expand arbitrary values.

Hint: There is also an ISO C++ derivative of the OSSP var library, named libvarexp. It is based on a development version of OSSP var and hence does not provide exactly the same amount of functionality. But it provides an ISO C++ API and so can be of interest to you if you are programming in ISO C++ (where OSSP var's ISO C API might be too boring for you).

Documentation

var(3) , var-config(1) .

Authors

Ralf S. Engelschall <rse@engelschall.com>
Peter Simons <simons@cryp.to>

Status

Stable Version:

1.1.3

(02-Oct-2005)

[Bug Reporting]

Genesis:

08-Mar-2002

Finished:

100%

Source

ChangeLog: http://cvs.ossp.org/pkg/lib/var/ChangeLog
Repository: http://cvs.ossp.org/pkg/lib/var/
Distribution: ftp://ftp.ossp.org/pkg/lib/var/
Distribution Files:	Size:	Time:
var-1.1.3.tar.gz	335.5KB	02-Oct-2005
var-1.1.2.tar.gz	327.6KB	31-Oct-2004
var-1.1.1.tar.gz	326.8KB	12-Sep-2004
var-1.1.0.tar.gz	322.9KB	04-Apr-2004
var-1.0.0.tar.gz	225.2KB	14-Feb-2003
var-0.9.0.tar.gz	213.2KB	08-Mar-2002

Donation

OSSP var is a sub-project of OSSP and hence a fully non-profit Open Source Software effort. The development on OSSP projects like OSSP var is supported by the contributions and sponsoring of individuals and companies. You can support OSSP var and the other OSSP projects yourself by contributing source fixes and enhancements or by donating money. To reward the efforts on OSSP var, just press the button to the right to perform a secure PayPal online money transaction to the OSSP project. Credit will be given to you on the OSSP Sponsors page once your donation was received.