Implement alias evaluation

Also add a rudimentary example port of Shakespeare's Othello to the doc
folder. Useful for benchmarking and probably testing HTML generation in
the future.

This just kept growing and I had to keep fixing pylint/pytest failures.
Really should have made a branch and done it in a bunch of commits, then
squashed later on if necessary - oh well.

Closes #11
Under #18, some work on that got stuck here

.pylintrc

@@ -102,6 +102,9 @@ disable=raw-checker-failed,
         too-many-return-statements,
         # Let me have my locals dangit :(
         too-many-locals,
+        # PyCharm's detection is smarter and takes child classes overriding
+        # the method into account
+        no-self-use,
 
 # Enable the message, report, category or checker with the given id(s). You can
 # either give multiple identifier separated by comma (,) or put this option

README.md

@@ -58,3 +58,8 @@ Zoia itself is licensed [under the GPLv3](LICENSE).
 This does not extend to fiction you write using it, nor does it extend to
 the output generated from such fiction once Zoia compiles it. You may
 license such data however you like.
+
+Note that some files in this repository are licensed under other licenses.
+None of them are part of Zoia itself, they function purely as examples.
+See the [examples directory](doc/examples) and the LICENSE files in there for
+more information.

doc/examples/othello/src/aliases.zoia

@@ -0,0 +1,13 @@
+\header[aliases]
+
+\def_alias[B; Brabantio]
+\def_alias[BI; Bianca]
+\def_alias[C; Cassio]
+\def_alias[D; Desdemona]
+\def_alias[E; Emilia]
+\def_alias[G; Gratiano]
+\def_alias[I; Iago]
+\def_alias[L; Lodovico]
+\def_alias[M; Montano]
+\def_alias[O; Othello]
+\def_alias[R; Roderigo]

doc/examples/othello/src/dictionary.zoia

@@ -0,0 +1 @@
+\header[dictionary]