This is an old revision of the document!
Coding guidelines
These rules apply to perl and php, unless otherwise mentioned.
General rules
- spaces instead of tabs
- indent is 4 spaces
- cuddled else:
if ($a > $b) { $a++; } else { $b++; }
- Line-length: usually <80 characters, not more than 120 chars
- translate parameter from @_ to names in start of sub
Documentation
- POD(perl)/Doxygen(php) API documentation for modules, close to code
- POD(perl) documentation for scripts (pod2usage)
Name-convention
- variables: lower case, underscore splits words
- constants: upper case, underscore splits words
- functions: lower case, underscore splits words
- modules/classes: upper case first, camel case splits words
Perltidy configuration
The following Perltidy configuration can be used as a guideline for formatting the code in Metamod. Don't use perl-tidy blindly on code in particular on others code! Use perltidy for diff.
# make some defaults explicit to document the decision --indent-columns=4 --cuddled-else --indent-block-comments --paren-tightness=1 --square-bracket-tightness=1 --brace-tightness=1 --block-brace-tightness=0 -nbl -nsbl --static-block-comments # deviations from the default --maximum-line-length=120 --continuation-indentation=4 --opening-brace-always-on-right --closing-token-indentation=0
Perl Template
The following templates follows Eclipse template syntax. All expression on the form ${variable}
should be replaced with actual values.
Basic module template
This is a template for basic module.
package ${name}; =begin LICENSE METAMOD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. METAMOD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with METAMOD; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA =end LICENSE =cut use strict; use warnings; =head1 NAME ${name} - ${description} =head1 SYNOPSIS =head1 DESCRIPTION =head1 FUNCTIONS/METHODS =cut ${code} =head1 LICENSE GPLv2 L<http://www.gnu.org/licenses/gpl-2.0.html> =cut 1;
Script
PHP Template