Add `sixtypical-py2.7.md` appliance and have tests pass under 2.7.

test.sh

@@ -2,6 +2,8 @@
 
 # This currently represents a lot of tests!  If you only want to run a subset,
 # it's probably best to run `falderal` manually on the file(s) you want to test.
+# Note also that the `sixtypical-py2.7.md` appliance, in the same directory as
+# `sixtypical.md`, can be used to run the tests under Python 2.7.
 
 falderal --substring-error \
     "tests/appliances/sixtypical.md" \

tests/appliances/bin/dcc6502-adapter

@@ -8,7 +8,10 @@ import re
 from subprocess import check_output
 from tempfile import NamedTemporaryFile
 
-bytes = sys.stdin.buffer.read()
+try:
+    bytes = sys.stdin.buffer.read()
+except AttributeError:
+    bytes = sys.stdin.read()
 
 bytes = bytes[14:]
 

tests/appliances/sixtypical-py2.7.md

@@ -0,0 +1,30 @@
+This file contains only the [Falderal][] directives that define the different
+functionalities tested by the test suite, assuming that it's the reference
+implementation, `sixtypical`, that is going to implement these functionalities,
+and additionally that `sixtypical` is running under Python 2.7.
+
+NOTE that this is not well-supported anymore, given that Python 2.7 is past
+end-of-life.
+
+[Falderal]:     http://catseye.tc/node/Falderal
+
+    -> Functionality "Check syntax of SixtyPical program" is implemented by
+    -> shell command "python2.7 bin/sixtypical --parse-only --traceback %(test-body-file) && echo ok"
+
+    -> Functionality "Analyze SixtyPical program" is implemented by
+    -> shell command "python2.7 bin/sixtypical --analyze-only --traceback %(test-body-file) && echo ok"
+
+    -> Functionality "Compile SixtyPical program" is implemented by
+    -> shell command "python2.7 bin/sixtypical --output-format=c64-basic-prg --traceback %(test-body-file) --output /tmp/foo && python2.7 tests/appliances/bin/dcc6502-adapter </tmp/foo"
+
+    -> Functionality "Dump callgraph info for SixtyPical program" is implemented by
+    -> shell command "python2.7 bin/sixtypical --dump-callgraph --analyze-only --traceback %(test-body-file)"
+
+    -> Functionality "Compile SixtyPical program with unreachable routine removal" is implemented by
+    -> shell command "python2.7 bin/sixtypical --output-format=c64-basic-prg --prune-unreachable-routines --traceback %(test-body-file) --output /tmp/foo && python2.7 tests/appliances/bin/dcc6502-adapter </tmp/foo"
+
+    -> Functionality "Dump fallthru info for SixtyPical program" is implemented by
+    -> shell command "python2.7 bin/sixtypical --optimize-fallthru --dump-fallthru-info --analyze-only --traceback %(test-body-file)"
+
+    -> Functionality "Compile SixtyPical program with fallthru optimization" is implemented by
+    -> shell command "python2.7 bin/sixtypical --output-format=c64-basic-prg --optimize-fallthru --traceback %(test-body-file) --output /tmp/foo && python2.7 tests/appliances/bin/dcc6502-adapter </tmp/foo"