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Artemus Release Notes

New milestone release. The Artemus language has been completely rewritten to be a LISP-like, compiled machine. No backward compatibility is provided (other than including the old 4.x module in the distribution). The new 5.x language is faster, more flexible, less cumbersome (for example, there's no need for escaping inner blocks that should execute only conditionally) and include support for translateable strings.

The foreach constructor now includes an optional 4th argument, the header, that will be appended to the output in case it's different from the previous iteration. This code block is expected to contain dollar-prefixed arguments.
New template function item, to return an item from a colon-separated list given its subscript.
Fix case comparisons when the variable contains carriage returns.
Fix loader_func() to correctly process empty templates.
Unless a very grave bug or vulnerabity is found, this will be the last 4.x release; next release will jump to the 5.x branch. Please take note that this new branch is intentionally incompatible with current one. Anyway, the Artemus4.pm module and associated tools are planned to be distributed with the 5.x series for a very long time.

New template function sort.
New template function reverse.
Templates can be loaded from external sources by using the new loader_func argument to new().
The Perl module Artemus is now an alias for the Artemus4 module, as a way to smooth the future transition to version 5. No changes need to be done.

New template function case.
New template function env, to get values from the environment.
New template function size, to return the number of elements in a colon-separated list.
New template function seq, to generate a sequence between two numbers as a colon-separated list.
Improved debugging information.

New template function foreach, to implement loops.
New template function set, for assigning a value to a variable.
New template arithmethic functions add and sub.
New template comparison functions gt, lt and eq.
New template logical functions and, or and not.
New template function random.
Comments can now be included with the {% } markup (they are deleted from the final output).
Old cruft has been deleted from the script (ftp, makefile and sitemap generation).
Template parameters are always expanded (instead of short- circuiting when one is not found).
Artemus markup can be escaped to allow templates being used from another ones with being executed first.

Documents artemus