Fix #373 capture single-quoted predicates > 1 char

CHANGELOG.md

@@ -16,6 +16,7 @@
 
 * Stop using Python's undocumented parse_template re function ([#378])
 * Resolved newline and encoding issues for running tests on Windows ([#379])
+* Capture legacy single-quoted predicates longer than 1 character ([#373])
 
 
 ## [v1.8.1]
@@ -1620,6 +1621,7 @@ information about changes, except for
 [#360]: https://github.com/delph-in/pydelphin/issues/360
 [#364]: https://github.com/delph-in/pydelphin/issues/364
 [#367]: https://github.com/delph-in/pydelphin/issues/367
+[#373]: https://github.com/delph-in/pydelphin/issues/373
 [#374]: https://github.com/delph-in/pydelphin/issues/374
 [#375]: https://github.com/delph-in/pydelphin/issues/375
 [#376]: https://github.com/delph-in/pydelphin/issues/376

delphin/codecs/simplemrs.py

@@ -140,7 +140,7 @@ def encode(m, properties=True, lnk=True, indent=False):
          r'|@\d+'
          r'|\d+(?: +\d+)*)>', 'LNK:a lnk value'),
         (r'"([^"\\]*(?:\\.[^"\\]*)*)"', 'DQSTRING:a string'),
-        (r"'([^ \n:<>\[\]])", 'SQSYMBOL:a quoted symbol'),
+        (r"'([^ \n:<>\[\]]+)", 'SQSYMBOL:a quoted symbol'),
         (r'_[^\s_]+'  # lemma
          r'_[nvajrscpqxud]'  # pos
          r'(?:_(?:[^\s_<]|<(?![-0-9:#@ ]*>\s))+)?'  # optional sense

tests/codecs/simplemrs_test.py

@@ -80,3 +80,9 @@ def test_escapes_issue_367():
     m2 = simplemrs.decode(s)
     assert m == m2
     assert m.surface == m2.surface
+
+
+def test_legacy_single_quote_predicates_issue_373():
+    # https://github.com/delph-in/pydelphin/issues/373
+    m = simplemrs.decode("[ RELS: < [ 'single+quoted LBL: h0 ] > ]")
+    assert m.rels[0].predicate == "single+quoted"