Use makeOptLeaf

Author: robintown

src/grammar.ts

@@ -228,17 +228,20 @@ const grammar: Grammar = {
     {"name": "CParg", "symbols": ["CPsub"], "postprocess": makeBranchCovertLeft('DP', 'D')},
     {"name": "CPrelcon", "symbols": ["CPrel"], "postprocess": id},
     {"name": "CPrelcon", "symbols": ["CPrel", "Conjunction", "CPrelcon"], "postprocess": makeConn},
-    {"name": "Sigmaconopt", "symbols": [], "postprocess": makeCovertLeaf('Σ')},
-    {"name": "Sigmaconopt", "symbols": ["Sigmacon"], "postprocess": id},
+    {"name": "Sigmaconopt$ebnf$1", "symbols": ["Sigmacon"], "postprocess": id},
+    {"name": "Sigmaconopt$ebnf$1", "symbols": [], "postprocess": () => null},
+    {"name": "Sigmaconopt", "symbols": ["Sigmaconopt$ebnf$1"], "postprocess": makeOptLeaf('Σ')},
     {"name": "Sigmacon", "symbols": ["Sigma"], "postprocess": id},
     {"name": "Sigmacon", "symbols": ["Sigma", "Conjunction", "Sigmacon"], "postprocess": makeConn},
-    {"name": "Tconopt", "symbols": [], "postprocess": makeCovertLeaf('T')},
-    {"name": "Tconopt", "symbols": ["Tcon"], "postprocess": id},
+    {"name": "Tconopt$ebnf$1", "symbols": ["Tcon"], "postprocess": id},
+    {"name": "Tconopt$ebnf$1", "symbols": [], "postprocess": () => null},
+    {"name": "Tconopt", "symbols": ["Tconopt$ebnf$1"], "postprocess": makeOptLeaf('T')},
     {"name": "Tcon", "symbols": ["T"], "postprocess": id},
     {"name": "Tcon", "symbols": ["T_prefix"], "postprocess": id},
     {"name": "Tcon", "symbols": ["T", "Conjunction", "Tcon"], "postprocess": makeConn},
-    {"name": "Aspconopt", "symbols": [], "postprocess": makeCovertLeaf('Asp')},
-    {"name": "Aspconopt", "symbols": ["Aspcon"], "postprocess": id},
+    {"name": "Aspconopt$ebnf$1", "symbols": ["Aspcon"], "postprocess": id},
+    {"name": "Aspconopt$ebnf$1", "symbols": [], "postprocess": () => null},
+    {"name": "Aspconopt", "symbols": ["Aspconopt$ebnf$1"], "postprocess": makeOptLeaf('Asp')},
     {"name": "Aspcon", "symbols": ["Asp"], "postprocess": id},
     {"name": "Aspcon", "symbols": ["Asp_prefix"], "postprocess": id},
     {"name": "Aspcon", "symbols": ["Asp", "Conjunction", "Aspcon"], "postprocess": makeConn},

src/toaq.kuna.ne

@@ -196,17 +196,14 @@ CPargfoc -> Focus CParg {% makeBranch('FocusP') %}
 CParg -> CPsub {% makeBranchCovertLeft('DP', 'D') %}
 CPrelcon -> CPrel {% id %}
 CPrelcon -> CPrel Conjunction CPrelcon {% makeConn %}
-Sigmaconopt -> null {% makeCovertLeaf('Σ') %}
-Sigmaconopt -> Sigmacon {% id %}
+Sigmaconopt -> Sigmacon:? {% makeOptLeaf('Σ') %}
 Sigmacon -> Sigma {% id %}
 Sigmacon -> Sigma Conjunction Sigmacon {% makeConn %}
-Tconopt -> null {% makeCovertLeaf('T') %}
-Tconopt -> Tcon {% id %}
+Tconopt -> Tcon:? {% makeOptLeaf('T') %}
 Tcon -> T {% id %}
 Tcon -> T_prefix {% id %}
 Tcon -> T Conjunction Tcon {% makeConn %}
-Aspconopt -> null {% makeCovertLeaf('Asp') %}
-Aspconopt -> Aspcon {% id %}
+Aspconopt -> Aspcon:? {% makeOptLeaf('Asp') %}
 Aspcon -> Asp {% id %}
 Aspcon -> Asp_prefix {% id %}
 Aspcon -> Asp Conjunction Aspcon {% makeConn %}