Add and fix test for mixed I18L quotation marks

src/main/java/com/whitemagicsoftware/keenquotes/lex/Lexeme.java


		/**
		+ * Creates a new instance with a copy of {@link LexemeType} to prevent
		+ * subsequent mutations from affecting the resolution of ambiguous quotes.
		+ *
		+ * @return A semi-deep copy of this instance.
		+ */
		+ public Lexeme copy() {
		+ return new Lexeme( mType.copy(), mBegan, mEnded );
		+ }
		+
		+ /**
		* Answers whether the given {@link LexemeType} is the same as this
		* instance's internal {@link LexemeType}.

src/main/java/com/whitemagicsoftware/keenquotes/lex/LexemeType.java


		/**
		+ * Creates a new instance with a copy of {@link LexemeGlyph} to prevent
		+ * mutations by calling {@link #with(LexemeGlyph)} from affecting ambiguous
		+ * quotes resolution.
		+ *
		+ * @return A semi-deep copy of this instance.
		+ */
		+ LexemeType copy() {
		+ return new LexemeType( glyph() );
		+ }
		+
		+ /**
		* Changes the type of glyph associated with this type of lexeme. This
		* is useful for passing along different glyphs represented by the same

src/main/java/com/whitemagicsoftware/keenquotes/parser/AmbiguityResolver.java

		if( token.isType( QUOTE_OPENING_SINGLE ) \|\|
		token.isType( QUOTE_OPENING_DOUBLE ) ) {
		- mTree = mTree.opening( token );
		+ mTree = mTree.opening( token.copy() );
		}
		// Close the subtree if it was open, try to close it.
		else if( token.isType( QUOTE_CLOSING_SINGLE ) \|\|
		token.isType( QUOTE_CLOSING_DOUBLE ) ) {
		- mTree = mTree.closing( token );
		+ mTree = mTree.closing( token.copy() );
		}
		else if( token.isType( QUOTE_AMBIGUOUS_DOUBLE ) ) {
		// Create subtrees for: <" ... ">, <" ">, <"">, etc.
		if( mTree.hasOpeningDoubleQuote() ) {
		token.setTokenType( QUOTE_CLOSING_DOUBLE );
		- mTree = mTree.closing( token );
		+ mTree = mTree.closing( token.copy() );
		}
		else {
		token.setTokenType( QUOTE_OPENING_DOUBLE );
		- mTree = mTree.opening( token );
		+ mTree = mTree.opening( token.copy() );
		}
		}
		// Add ambiguous tokens to be resolved; add apostrophes for later emitting.
		else {
		- mTree.add( token );
		+ mTree.add( token.copy() );
		}
		}

src/main/java/com/whitemagicsoftware/keenquotes/parser/QuoteEmitter.java

		emit( QUOTE_OPENING_DOUBLE, lex2 );
		}
		- else if( match( ANY, QUOTE_DOUBLE, ANY, ANY ) ) {
		- emit( QUOTE_AMBIGUOUS_DOUBLE, lex2 );
		- }
		- // International opening double quotation mark.
		+ // International quotation marks.
		else if( match( ANY, QUOTE_DOUBLE_OPENING, ANY, ANY ) ) {
		emit( QUOTE_OPENING_DOUBLE, lex2 );
		}
		- // International opening single quotation mark.
		else if( match( ANY, QUOTE_SINGLE_OPENING, ANY, ANY ) ) {
		emit( QUOTE_OPENING_SINGLE, lex2 );
		}
		- // International double closing quotation mark.
		- else if( match( ANY, ANY, ANY, QUOTE_DOUBLE_CLOSING ) ) {
		- emit( QUOTE_CLOSING_DOUBLE, lex4 );
		+ else if( match( ANY, QUOTE_DOUBLE_CLOSING, ANY, ANY ) ) {
		+ emit( QUOTE_CLOSING_DOUBLE, lex2 );
		}
		- // International single closing quotation mark.
		- else if( match( ANY, ANY, ANY, QUOTE_SINGLE_CLOSING ) ) {
		- emit( QUOTE_CLOSING_SINGLE, lex4 );
		+ else if( match( ANY, QUOTE_SINGLE_CLOSING, ANY, ANY ) ) {
		+ emit( QUOTE_CLOSING_SINGLE, lex2 );
		}
		// Ambiguous (no match)
		else if( match( ANY, QUOTE_SINGLE, ANY, ANY ) ) {
		emit( QUOTE_AMBIGUOUS_SINGLE, lex2 );
		+ }
		+ else if( match( ANY, QUOTE_DOUBLE, ANY, ANY ) ) {
		+ emit( QUOTE_AMBIGUOUS_DOUBLE, lex2 );
		}
		}

src/main/java/com/whitemagicsoftware/keenquotes/parser/Token.java


		/**
		+ * Creates a new instance with a copy of {@link Lexeme} to prevent
		+ * subsequent mutations from affecting the resolution of ambiguous quotes.
		+ *
		+ * @return A semi-deep copy of this instance.
		+ */
		+ Token copy() {
		+ return new Token( mTokenType, mLexeme.copy() );
		+ }
		+
		+ /**
		* Answers whether this {@link Token} appears before the given {@link Token}
		* in the document. If they overlap, this will return {@code false}.

src/test/resources/com/whitemagicsoftware/keenquotes/texts/i18n.txt

		# ########################################################################
		+# Mixed
		+# ########################################################################
		+«What's ‹going› on?» ,,Hey there!"
		+«What's &lsaquo;going&rsaquo; on?» „Hey there!”
		+
		+# ########################################################################
		# French
		# ########################################################################

Delta	50 lines added, 16 lines removed, 34-line increase