| i | - | Idea, listed to gain consensus or as a placeholder |
| c | - | Under construction but pre-alpha (not yet released) |
| a | - | Alpha testing |
| b | - | Beta testing |
| R | - | Released |
| M | - | Mature (no rigorous definition) |
| S | - | Standard, supplied with Perl 5 |
| m | - | Mailing-list |
| d | - | Developer |
| u | - | Usenet newsgroup comp.lang.perl.modules |
| n | - | None known, try comp.lang.perl.modules |
| a | - | Abandoned, the module has been abandoned by its author |
| p | - | Perl-only, no compiler needed, should be platform independent |
| c | - | C and perl, a C compiler will be needed |
| h | - | Hybrid, written in perl with optional C code, no compiler needed |
| + | - | C++ and perl, a C++ compiler will be needed |
| o | - | perl and another language other than C or C++ |
| f | - | plain Functions, no references used |
| h | - | hybrid, object and function interfaces available |
| n | - | no interface at all (huh?) |
| r | - | some use of unblessed References or ties |
| O | - | Object oriented using blessed references and/or inheritance |
| p | - | Standard-Perl: user may choose between GPL and Artistic |
| g | - | GPL: GNU General Public License |
| l | - | LGPL: "GNU Lesser General Public License" (previously known as "GNU Library General Public License") |
| b | - | BSD: The BSD License |
| a | - | Artistic license alone |
| o | - | other (but distribution allowed without restrictions) |
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