From b4e4e7f1d6749de92b0f2c5ca09eb4170704100f Mon Sep 17 00:00:00 2001 From: bjculkin Date: Fri, 31 Mar 2017 08:53:33 -0400 Subject: Move Pratt Parser to new project --- .../parserutils/pratt/commands/TernaryCommand.java | 77 ---------------------- 1 file changed, 77 deletions(-) delete mode 100644 BJC-Utils2/src/main/java/bjc/utils/parserutils/pratt/commands/TernaryCommand.java (limited to 'BJC-Utils2/src/main/java/bjc/utils/parserutils/pratt/commands/TernaryCommand.java') diff --git a/BJC-Utils2/src/main/java/bjc/utils/parserutils/pratt/commands/TernaryCommand.java b/BJC-Utils2/src/main/java/bjc/utils/parserutils/pratt/commands/TernaryCommand.java deleted file mode 100644 index 8f04368..0000000 --- a/BJC-Utils2/src/main/java/bjc/utils/parserutils/pratt/commands/TernaryCommand.java +++ /dev/null @@ -1,77 +0,0 @@ -package bjc.utils.parserutils.pratt.commands; - -import bjc.utils.data.ITree; -import bjc.utils.data.Tree; -import bjc.utils.parserutils.ParserException; -import bjc.utils.parserutils.pratt.ParseBlock; -import bjc.utils.parserutils.pratt.ParserContext; -import bjc.utils.parserutils.pratt.Token; - -/** - * A ternary command, like C's ?: - * - * @author bjculkin - * - * @param - * The key type of the tokens. - * - * @param - * The value type of the tokens. - * - * @param - * The state type of the parser. - */ -public class TernaryCommand extends BinaryPostCommand { - private ParseBlock innerBlck; - - private Token mark; - - private boolean nonassoc; - - /** - * Create a new ternary command. - * - * @param precedence - * The precedence of this operator. - * - * @param innerBlock - * The representation of the inner block of the - * expression. - * - * @param marker - * The token to use as the root of the AST node. - * - * @param isNonassoc - * Whether or not the conditional is associative. - */ - public TernaryCommand(int precedence, ParseBlock innerBlock, Token marker, boolean isNonassoc) { - super(precedence); - - if (innerBlock == null) - throw new NullPointerException("Inner block must not be null"); - else if (marker == null) throw new NullPointerException("Marker must not be null"); - - innerBlck = innerBlock; - mark = marker; - nonassoc = isNonassoc; - } - - @Override - public ITree> denote(ITree> operand, Token operator, ParserContext ctx) - throws ParserException { - ITree> inner = innerBlck.parse(ctx); - - ITree> outer = ctx.parse.parseExpression(1 + leftBinding(), ctx.tokens, ctx.state, false); - - return new Tree<>(mark, inner, operand, outer); - } - - @Override - public int nextBinding() { - if (nonassoc) { - return leftBinding() - 1; - } else { - return leftBinding(); - } - } -} \ No newline at end of file -- cgit v1.2.3