From 7bda9de511a5642efb297eae98c6ea7c42b27754 Mon Sep 17 00:00:00 2001
From: "Benjamin J. Culkin" <bjculkin@mix.wvu.edu>
Date: Wed, 25 Oct 2017 12:10:14 -0300
Subject: Start switch to maven modules

---
 dice-lang/src/bjc/dicelang/expr/Tokens.java | 96 -----------------------------
 1 file changed, 96 deletions(-)
 delete mode 100644 dice-lang/src/bjc/dicelang/expr/Tokens.java

(limited to 'dice-lang/src/bjc/dicelang/expr/Tokens.java')

diff --git a/dice-lang/src/bjc/dicelang/expr/Tokens.java b/dice-lang/src/bjc/dicelang/expr/Tokens.java
deleted file mode 100644
index 287d2b4..0000000
--- a/dice-lang/src/bjc/dicelang/expr/Tokens.java
+++ /dev/null
@@ -1,96 +0,0 @@
-package bjc.dicelang.expr;
-
-import java.util.Collections;
-import java.util.HashMap;
-import java.util.Map;
-
-/**
- * Contains per-instance state for token parsing.
- *
- * @author EVE
- *
- */
-public class Tokens {
-	/* Contains mappings from variable references to string names. */
-	private final Map<Integer, String> symTab;
-	/* Reverse index into the symbol table. */
-	private final Map<String, Integer> revSymTab;
-
-	/** Read-only view on the symbol table. */
-	public final Map<Integer, String> symbolTable;
-
-	/* Next index into the symbol table. */
-	private int nextSym;
-
-	/* Mapping from literal tokens to token types. */
-	private final Map<String, TokenType> litTokens;
-
-	/** Create a new set of tokens. */
-	public Tokens() {
-		/* Create tables. */
-		symTab = new HashMap<>();
-		revSymTab = new HashMap<>();
-
-		/* Init public view. */
-		symbolTable = Collections.unmodifiableMap(symTab);
-
-		/* Set sym ID. */
-		nextSym = 0;
-
-		/* 
-		 * Setup literal mappings.
-		 *
-		 * @NOTE
-		 * 	Should this be a static member?
-		 */
-		litTokens = new HashMap<>();
-		litTokens.put("+", TokenType.ADD);
-		litTokens.put("-", TokenType.SUBTRACT);
-		litTokens.put("*", TokenType.MULTIPLY);
-		litTokens.put("/", TokenType.DIVIDE);
-		litTokens.put("(", TokenType.OPAREN);
-		litTokens.put(")", TokenType.CPAREN);
-	}
-
-	/**
-	 * Convert the string representation of a token into a token.
-	 *
-	 * @param tok
-	 *                The string representation of the token.
-	 * @param raw
-	 *                The original string the token came from.
-	 *
-	 * @return The token the string represents.
-	 */
-	public Token lexToken(final String tok, final String raw) {
-		if (litTokens.containsKey(tok)) {
-			/* Return matching literal token. */
-			return new Token(litTokens.get(tok), raw, this);
-		}
-
-		/* Its a variable reference. */
-		return parseVRef(tok, raw);
-	}
-
-	/* Parse a variable reference. */
-	private Token parseVRef(final String tok, final String raw) {
-		final Token tk = new Token(TokenType.VREF, raw, this);
-
-		if (revSymTab.containsKey(tok)) {
-			/* Reuse the entry if it exists. */
-			tk.intValue = revSymTab.get(tok);
-		} else {
-			/* Create a new entry. */
-			tk.intValue = nextSym;
-
-			/* Record it. */
-			symTab.put(nextSym, tok);
-			revSymTab.put(tok, nextSym);
-
-			/* Next ID. */
-			nextSym += 1;
-		}
-
-		return tk;
-	}
-}
-- 
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