Description of problem:

Previously, entities declared in .ent files which contained underscores were correctly substituted when undergoing processing. Publican 1.4 no longer performs substitutions on entity names containing underscores (or, possibly, other characters?).

This may or may not be intentional, and therefore may or may not be a bug. It appears from a quick search that it is up to definitions in the processor as to whether underscores are allowed in entity names.

This is not an issue for the Deployment Guide as I've already converted the three entities defined therein to underscore-less versions, but this change may affect other books and cause confusion.


Version-Release number of selected component (if applicable):
Publican 1.4+

How reproducible:


Steps to Reproduce:
1. Define an entity with an underscore in the book.ent file; use this entity somewhere in a DocBook XML file
2. publican build --langs=en-US --formats=html-single
3. 
  
Actual results:
in the resulting HTML, the entity shows up as, for example, "&MAJOR_OS;", instead of "Red Hat Enterprise Linux".

Expected results:
"Red Hat Enterprise Linux"

Additional info:
entity-with-underscore substitution worked in versions of publican prior to 1.4 (and, if memory serves, prior to 1.0).