support for preparing e-books.
editor designed (or adapted) for use with (La)TeX.
plug-ins for editors, for better (La)TeX and Meta* support.
editor’s marks, highlights, etc..
ensure consistency of usage.
support of electronic design.
code to emulate “other things”.
conversion between encodings.
notes typeset at end document.
TeX (or TeX-alike) typesetting engine.
typesetting associated with engineering of whatever sort.
typesetting specific to English.
examine the TeX programming environment.
short quotation typically associated with the start of a chapter.
control of LaTeX error messages.
support for typesetting Esperanto.
course work essays, assignments, etc..
support for typesetting Estonian.
exams, quizzes, etc..
execute ‘other types’ of language.
exercises, problems for solution, etc..
offer of a facility that may never make its way to production use.
package uses experimental LaTeX 3.
run an external program from within a document.
link to a service not on CTAN.