X-Git-Url: http://git.megacz.com/?p=sbp.git;a=blobdiff_plain;f=src%2Fedu%2Fberkeley%2Fsbp%2Fmisc%2FMetaGrammar.java;h=0f75ecd52d313fdffc30552deb78c6de8c183f47;hp=1b4f1d9ea0b770226e8bd40c1f244228d2e739de;hb=c1325de42a4ddfad3ff9b10bfdda11078e38e8a6;hpb=2a43edc3783a51c0ada2269835d833fa4ce8ab33 diff --git a/src/edu/berkeley/sbp/misc/MetaGrammar.java b/src/edu/berkeley/sbp/misc/MetaGrammar.java index 1b4f1d9..0f75ecd 100644 --- a/src/edu/berkeley/sbp/misc/MetaGrammar.java +++ b/src/edu/berkeley/sbp/misc/MetaGrammar.java @@ -76,7 +76,9 @@ public class MetaGrammar extends ReflectiveWalker { if (o.length <= 1) return o; Object[] ret = new Object[o.length * 2 - 1]; for(int i=0; i", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "+/", new Tree[] { new Tree(null, "nonTerminalY", new Tree[] { new Tree(null, "sify", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "R", new Tree[] { }), + new Tree(null, "t", new Tree[] { }), new Tree(null, "e", new Tree[] { }), - new Tree(null, "w", new Tree[] { }), new Tree(null, "r", new Tree[] { }), + new Tree(null, "n", new Tree[] { }), + new Tree(null, "a", new Tree[] { }), + new Tree(null, "t", new Tree[] { }), new Tree(null, "i", new Tree[] { }), + new Tree(null, "v", new Tree[] { }), + new Tree(null, "e", new Tree[] { }), + new Tree(null, "s", new Tree[] { })})}), + new Tree(null, null, new Tree[] { new Tree(null, "alternatives", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "rewrite", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "+/", new Tree[] { new Tree(null, "nonTerminalY", new Tree[] { new Tree(null, "sify", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "E", new Tree[] { }), + new Tree(null, "q", new Tree[] { }), + new Tree(null, "u", new Tree[] { }), + new Tree(null, "i", new Tree[] { }), + new Tree(null, "A", new Tree[] { }), + new Tree(null, "l", new Tree[] { }), + new Tree(null, "t", new Tree[] { })})})}), + new Tree(null, "literal", new Tree[] { new Tree(null, "sify", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, ">", new Tree[] { })})})})})})})})})})}), + new Tree(null, "::=", new Tree[] { new Tree(null, "sify", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "E", new Tree[] { }), + new Tree(null, "q", new Tree[] { }), + new Tree(null, "u", new Tree[] { }), + new Tree(null, "i", new Tree[] { }), + new Tree(null, "A", new Tree[] { }), + new Tree(null, "l", new Tree[] { }), + new Tree(null, "t", new Tree[] { })})}), + new Tree(null, null, new Tree[] { new Tree(null, "alternatives", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "=>", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "+/", new Tree[] { new Tree(null, "nonTerminalY", new Tree[] { new Tree(null, "sify", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "C", new Tree[] { }), + new Tree(null, "o", new Tree[] { }), + new Tree(null, "n", new Tree[] { }), + new Tree(null, "j", new Tree[] { }), + new Tree(null, "u", new Tree[] { }), + new Tree(null, "n", new Tree[] { }), + new Tree(null, "c", new Tree[] { }), new Tree(null, "t", new Tree[] { }), - new Tree(null, "e", new Tree[] { })})})}), - new Tree(null, "nonTerminalY", new Tree[] { new Tree(null, "sify", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "b", new Tree[] { }), - new Tree(null, "a", new Tree[] { }), - new Tree(null, "r", new Tree[] { })})})})})}), + new Tree(null, "s", new Tree[] { })})})}), + new Tree(null, "literal", new Tree[] { new Tree(null, "sify", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "|", new Tree[] { })})})})})}), new Tree(null, "sify", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "a", new Tree[] { }), new Tree(null, "l", new Tree[] { }), new Tree(null, "t", new Tree[] { }), @@ -466,51 +505,82 @@ new Tree(null, "gram", new Tree[] { new Tree(null, null, new Tree[] { }), new Tree(null, "v", new Tree[] { }), new Tree(null, "e", new Tree[] { }), new Tree(null, "s", new Tree[] { })})})})})})})}), - new Tree(null, "::=", new Tree[] { new Tree(null, "sify", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "R", new Tree[] { }), + new Tree(null, "::=", new Tree[] { new Tree(null, "sify", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "S", new Tree[] { }), new Tree(null, "e", new Tree[] { }), - new Tree(null, "w", new Tree[] { }), - new Tree(null, "r", new Tree[] { }), - new Tree(null, "i", new Tree[] { }), - new Tree(null, "t", new Tree[] { }), + new Tree(null, "q", new Tree[] { }), + new Tree(null, "u", new Tree[] { }), + new Tree(null, "e", new Tree[] { }), + new Tree(null, "n", new Tree[] { }), + new Tree(null, "c", new Tree[] { }), new Tree(null, "e", new Tree[] { })})}), + new Tree(null, null, new Tree[] { new Tree(null, "alternatives", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "rewrite", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "+", new Tree[] { new Tree(null, "nonTerminalY", new Tree[] { new Tree(null, "sify", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "E", new Tree[] { })})})})}), + new Tree(null, "care", new Tree[] { new Tree(null, "sify", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "/", new Tree[] { })})})}), + new Tree(null, "nonTerminalY", new Tree[] { new Tree(null, "sify", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "E", new Tree[] { })})})})})})})}), + new Tree(null, "alternatives", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "rewrite", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "+", new Tree[] { new Tree(null, "nonTerminalY", new Tree[] { new Tree(null, "sify", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "E", new Tree[] { })})})})})})})})})})}), + new Tree(null, "::=", new Tree[] { new Tree(null, "sify", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "C", new Tree[] { }), + new Tree(null, "o", new Tree[] { }), + new Tree(null, "n", new Tree[] { }), + new Tree(null, "j", new Tree[] { }), + new Tree(null, "u", new Tree[] { }), + new Tree(null, "n", new Tree[] { }), + new Tree(null, "c", new Tree[] { }), + new Tree(null, "t", new Tree[] { }), + new Tree(null, "s", new Tree[] { })})}), new Tree(null, null, new Tree[] { new Tree(null, "alternatives", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "rewrite", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "nonTerminalY", new Tree[] { new Tree(null, "sify", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "R", new Tree[] { }), new Tree(null, "e", new Tree[] { }), new Tree(null, "w", new Tree[] { }), new Tree(null, "r", new Tree[] { }), new Tree(null, "i", new Tree[] { }), new Tree(null, "t", new Tree[] { }), - new Tree(null, "e", new Tree[] { }), - new Tree(null, "x", new Tree[] { })})})})})}), + new Tree(null, "e", new Tree[] { })})})})})}), new Tree(null, "rewrite", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "nonTerminalY", new Tree[] { new Tree(null, "sify", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "R", new Tree[] { }), new Tree(null, "e", new Tree[] { }), new Tree(null, "w", new Tree[] { }), new Tree(null, "r", new Tree[] { }), new Tree(null, "i", new Tree[] { }), new Tree(null, "t", new Tree[] { }), - new Tree(null, "e", new Tree[] { }), - new Tree(null, "x", new Tree[] { })})})}), + new Tree(null, "e", new Tree[] { })})})}), new Tree(null, "care", new Tree[] { new Tree(null, "sify", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "&", new Tree[] { })})})}), - new Tree(null, "+", new Tree[] { new Tree(null, "nonTerminalY", new Tree[] { new Tree(null, "sify", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "E", new Tree[] { })})})})})})}), + new Tree(null, "nonTerminalY", new Tree[] { new Tree(null, "sify", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "S", new Tree[] { }), + new Tree(null, "e", new Tree[] { }), + new Tree(null, "q", new Tree[] { }), + new Tree(null, "u", new Tree[] { }), + new Tree(null, "e", new Tree[] { }), + new Tree(null, "n", new Tree[] { }), + new Tree(null, "c", new Tree[] { }), + new Tree(null, "e", new Tree[] { })})})})})}), new Tree(null, "rewrite", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "nonTerminalY", new Tree[] { new Tree(null, "sify", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "R", new Tree[] { }), new Tree(null, "e", new Tree[] { }), new Tree(null, "w", new Tree[] { }), new Tree(null, "r", new Tree[] { }), new Tree(null, "i", new Tree[] { }), new Tree(null, "t", new Tree[] { }), - new Tree(null, "e", new Tree[] { }), - new Tree(null, "x", new Tree[] { })})})}), + new Tree(null, "e", new Tree[] { })})})}), new Tree(null, "care", new Tree[] { new Tree(null, "sify", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "&", new Tree[] { }), new Tree(null, "~", new Tree[] { })})})}), - new Tree(null, "+", new Tree[] { new Tree(null, "nonTerminalY", new Tree[] { new Tree(null, "sify", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "E", new Tree[] { })})})})})})})})})})}), + new Tree(null, "nonTerminalY", new Tree[] { new Tree(null, "sify", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "S", new Tree[] { }), + new Tree(null, "e", new Tree[] { }), + new Tree(null, "q", new Tree[] { }), + new Tree(null, "u", new Tree[] { }), + new Tree(null, "e", new Tree[] { }), + new Tree(null, "n", new Tree[] { }), + new Tree(null, "c", new Tree[] { }), + new Tree(null, "e", new Tree[] { })})})})})})})})})}), new Tree(null, "::=", new Tree[] { new Tree(null, "sify", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "R", new Tree[] { }), new Tree(null, "e", new Tree[] { }), new Tree(null, "w", new Tree[] { }), new Tree(null, "r", new Tree[] { }), new Tree(null, "i", new Tree[] { }), new Tree(null, "t", new Tree[] { }), + new Tree(null, "e", new Tree[] { })})}), + new Tree(null, null, new Tree[] { new Tree(null, "alternatives", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "=>", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "nonTerminalY", new Tree[] { new Tree(null, "sify", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "S", new Tree[] { }), + new Tree(null, "e", new Tree[] { }), + new Tree(null, "q", new Tree[] { }), + new Tree(null, "u", new Tree[] { }), new Tree(null, "e", new Tree[] { }), - new Tree(null, "x", new Tree[] { })})}), - new Tree(null, null, new Tree[] { new Tree(null, "alternatives", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "=>", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "+", new Tree[] { new Tree(null, "nonTerminalY", new Tree[] { new Tree(null, "sify", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "E", new Tree[] { })})})})})}), + new Tree(null, "n", new Tree[] { }), + new Tree(null, "c", new Tree[] { }), + new Tree(null, "e", new Tree[] { })})})})}), new Tree(null, "sify", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "r", new Tree[] { }), new Tree(null, "e", new Tree[] { }), new Tree(null, "w", new Tree[] { }), @@ -518,14 +588,28 @@ new Tree(null, "gram", new Tree[] { new Tree(null, null, new Tree[] { }), new Tree(null, "i", new Tree[] { }), new Tree(null, "t", new Tree[] { }), new Tree(null, "e", new Tree[] { })})})}), - new Tree(null, "rewrite", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "+", new Tree[] { new Tree(null, "nonTerminalY", new Tree[] { new Tree(null, "sify", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "E", new Tree[] { })})})})}), + new Tree(null, "rewrite", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "nonTerminalY", new Tree[] { new Tree(null, "sify", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "S", new Tree[] { }), + new Tree(null, "e", new Tree[] { }), + new Tree(null, "q", new Tree[] { }), + new Tree(null, "u", new Tree[] { }), + new Tree(null, "e", new Tree[] { }), + new Tree(null, "n", new Tree[] { }), + new Tree(null, "c", new Tree[] { }), + new Tree(null, "e", new Tree[] { })})})}), new Tree(null, "care", new Tree[] { new Tree(null, "sify", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "=", new Tree[] { }), new Tree(null, ">", new Tree[] { })})})}), new Tree(null, "nonTerminalY", new Tree[] { new Tree(null, "sify", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "w", new Tree[] { }), new Tree(null, "o", new Tree[] { }), new Tree(null, "r", new Tree[] { }), new Tree(null, "d", new Tree[] { })})})})})}), - new Tree(null, "rewrite", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "+", new Tree[] { new Tree(null, "nonTerminalY", new Tree[] { new Tree(null, "sify", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "E", new Tree[] { })})})})}), + new Tree(null, "rewrite", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "nonTerminalY", new Tree[] { new Tree(null, "sify", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "S", new Tree[] { }), + new Tree(null, "e", new Tree[] { }), + new Tree(null, "q", new Tree[] { }), + new Tree(null, "u", new Tree[] { }), + new Tree(null, "e", new Tree[] { }), + new Tree(null, "n", new Tree[] { }), + new Tree(null, "c", new Tree[] { }), + new Tree(null, "e", new Tree[] { })})})}), new Tree(null, "care", new Tree[] { new Tree(null, "sify", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "=", new Tree[] { }), new Tree(null, ">", new Tree[] { })})})}), new Tree(null, "nonTerminalY", new Tree[] { new Tree(null, "sify", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "q", new Tree[] { }), @@ -534,7 +618,14 @@ new Tree(null, "gram", new Tree[] { new Tree(null, null, new Tree[] { }), new Tree(null, "t", new Tree[] { }), new Tree(null, "e", new Tree[] { }), new Tree(null, "d", new Tree[] { })})})})})}), - new Tree(null, "=>", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "+", new Tree[] { new Tree(null, "nonTerminalY", new Tree[] { new Tree(null, "sify", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "E", new Tree[] { })})})})}), + new Tree(null, "=>", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "nonTerminalY", new Tree[] { new Tree(null, "sify", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "S", new Tree[] { }), + new Tree(null, "e", new Tree[] { }), + new Tree(null, "q", new Tree[] { }), + new Tree(null, "u", new Tree[] { }), + new Tree(null, "e", new Tree[] { }), + new Tree(null, "n", new Tree[] { }), + new Tree(null, "c", new Tree[] { }), + new Tree(null, "e", new Tree[] { })})})}), new Tree(null, "literal", new Tree[] { new Tree(null, "sify", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "=", new Tree[] { }), new Tree(null, ">", new Tree[] { })})})}), new Tree(null, "literal", new Tree[] { new Tree(null, "sify", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "(", new Tree[] { }), @@ -567,13 +658,6 @@ new Tree(null, "gram", new Tree[] { new Tree(null, null, new Tree[] { }), new Tree(null, "g", new Tree[] { }), new Tree(null, "e", new Tree[] { }), new Tree(null, "0", new Tree[] { })})})})})})})}), - new Tree(null, "!::=", new Tree[] { new Tree(null, "sify", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "g", new Tree[] { }), - new Tree(null, "t", new Tree[] { })})}), - new Tree(null, null, new Tree[] { new Tree(null, "alternatives", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "rewrite", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "literal", new Tree[] { new Tree(null, "sify", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, ">", new Tree[] { })})})})})})})})})}), - new Tree(null, "!::=", new Tree[] { new Tree(null, "sify", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "b", new Tree[] { }), - new Tree(null, "a", new Tree[] { }), - new Tree(null, "r", new Tree[] { })})}), - new Tree(null, null, new Tree[] { new Tree(null, "alternatives", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "rewrite", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "literal", new Tree[] { new Tree(null, "sify", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "|", new Tree[] { })})})})})})})})})}), new Tree(null, "::=", new Tree[] { new Tree(null, "sify", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "E", new Tree[] { })})}), new Tree(null, null, new Tree[] { new Tree(null, "alternatives", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "=>", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "nonTerminalY", new Tree[] { new Tree(null, "sify", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "w", new Tree[] { }), new Tree(null, "o", new Tree[] { }), @@ -603,13 +687,18 @@ new Tree(null, "gram", new Tree[] { new Tree(null, null, new Tree[] { }), new Tree(null, "o", new Tree[] { }), new Tree(null, "n", new Tree[] { })})})}), new Tree(null, "rewrite", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "care", new Tree[] { new Tree(null, "sify", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "{", new Tree[] { })})})}), - new Tree(null, "+/", new Tree[] { new Tree(null, "nonTerminalY", new Tree[] { new Tree(null, "sify", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "C", new Tree[] { }), + new Tree(null, "nonTerminalY", new Tree[] { new Tree(null, "sify", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "A", new Tree[] { }), new Tree(null, "l", new Tree[] { }), + new Tree(null, "t", new Tree[] { }), + new Tree(null, "e", new Tree[] { }), + new Tree(null, "r", new Tree[] { }), + new Tree(null, "n", new Tree[] { }), new Tree(null, "a", new Tree[] { }), - new Tree(null, "s", new Tree[] { }), + new Tree(null, "t", new Tree[] { }), + new Tree(null, "i", new Tree[] { }), + new Tree(null, "v", new Tree[] { }), + new Tree(null, "e", new Tree[] { }), new Tree(null, "s", new Tree[] { })})})}), - new Tree(null, "nonTerminalY", new Tree[] { new Tree(null, "sify", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "g", new Tree[] { }), - new Tree(null, "t", new Tree[] { })})})})}), new Tree(null, "literal", new Tree[] { new Tree(null, "sify", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "}", new Tree[] { })})})})})}), new Tree(null, "=>", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "literal", new Tree[] { new Tree(null, "sify", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "[", new Tree[] { })})})}), new Tree(null, "?", new Tree[] { new Tree(null, "range", new Tree[] { new Tree(null, null, new Tree[] { }), @@ -689,13 +778,18 @@ new Tree(null, "gram", new Tree[] { new Tree(null, null, new Tree[] { }), new Tree(null, "d", new Tree[] { })})})}), new Tree(null, "care", new Tree[] { new Tree(null, "sify", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, ")", new Tree[] { })})})})})})})}), new Tree(null, "alternatives", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "rewrite", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "care", new Tree[] { new Tree(null, "sify", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "(", new Tree[] { })})})}), - new Tree(null, "+/", new Tree[] { new Tree(null, "nonTerminalY", new Tree[] { new Tree(null, "sify", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "C", new Tree[] { }), + new Tree(null, "nonTerminalY", new Tree[] { new Tree(null, "sify", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "A", new Tree[] { }), new Tree(null, "l", new Tree[] { }), + new Tree(null, "t", new Tree[] { }), + new Tree(null, "e", new Tree[] { }), + new Tree(null, "r", new Tree[] { }), + new Tree(null, "n", new Tree[] { }), new Tree(null, "a", new Tree[] { }), - new Tree(null, "s", new Tree[] { }), + new Tree(null, "t", new Tree[] { }), + new Tree(null, "i", new Tree[] { }), + new Tree(null, "v", new Tree[] { }), + new Tree(null, "e", new Tree[] { }), new Tree(null, "s", new Tree[] { })})})}), - new Tree(null, "nonTerminalY", new Tree[] { new Tree(null, "sify", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "g", new Tree[] { }), - new Tree(null, "t", new Tree[] { })})})})}), new Tree(null, "literal", new Tree[] { new Tree(null, "sify", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, ")", new Tree[] { })})})})})})})})})}), new Tree(null, "!::=", new Tree[] { new Tree(null, "sify", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "w", new Tree[] { })})}), new Tree(null, null, new Tree[] { new Tree(null, "alternatives", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "rewrite", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, "literal", new Tree[] { new Tree(null, "sify", new Tree[] { new Tree(null, null, new Tree[] { new Tree(null, " ", new Tree[] { })})})})})}), @@ -775,3 +869,4 @@ new Tree(null, "gram", new Tree[] { new Tree(null, null, new Tree[] { }), +