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csslib/lib/src/css_printer.dart

Index: csslib/lib/src/css_printer.dart
diff --git a/csslib/lib/src/css_printer.dart b/csslib/lib/src/css_printer.dart
deleted file mode 100644
index 125b5aefb41e634931c0be24265c2f4c75d8f58b..0000000000000000000000000000000000000000
--- a/csslib/lib/src/css_printer.dart
+++ /dev/null
@@ -1,516 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-part of csslib.visitor;
-
-/**
- * Visitor that produces a formatted string representation of the CSS tree.
- */
-class CssPrinter extends Visitor {
-  StringBuffer _buff = new StringBuffer();
-  bool prettyPrint = true;
-
-  /**
-   * Walk the [tree] Stylesheet. [pretty] if true emits line breaks, extra
-   * spaces, friendly property values, etc., if false emits compacted output.
-   */
-  void visitTree(StyleSheet tree, {bool pretty: false}) {
-    prettyPrint = pretty;
-    _buff = new StringBuffer();
-    visitStyleSheet(tree);
-  }
-
-  /** Appends [str] to the output buffer. */
-  void emit(String str) {
-    _buff.write(str);
-  }
-
-  /** Returns the output buffer. */
-  String toString() => _buff.toString().trim();
-
-  String get _newLine => prettyPrint ? '\n' : ' ';
-  String get _sp => prettyPrint ? ' ' : '';
-
-  // TODO(terry): When adding obfuscation we'll need isOptimized (compact w/
-  //              obufuscation) and have isTesting (compact no obfuscation) and
-  //              isCompact would be !prettyPrint.  We'll need another boolean
-  //              flag for obfuscation.
-  bool get _isTesting => !prettyPrint;
-
-  void visitCssComment(CssComment node) {
-    emit('/* ${node.comment} */');
-  }
-
-  void visitCommentDefinition(CommentDefinition node) {
-    emit('<!-- ${node.comment} -->');
-  }
-
-  void visitMediaExpression(MediaExpression node) {
-    emit(node.andOperator ? ' AND ' : ' ');
-    emit('(${node.mediaFeature}:');
-    visitExpressions(node.exprs);
-    emit(')');
-  }
-
-  void visitMediaQuery(MediaQuery query) {
-    var unary = query.hasUnary ? ' ${query.unary}' : '';
-    var mediaType = query.hasMediaType ? ' ${query.mediaType}' : '';
-    emit('$unary$mediaType');
-    for (var expression in query.expressions) {
-      visitMediaExpression(expression);
-    }
-  }
-
-  void emitMediaQueries(queries) {
-    var queriesLen = queries.length;
-    for (var i = 0; i < queriesLen; i++) {
-      var query = queries[i];
-      if (query.hasMediaType && i > 0) emit(',');
-      visitMediaQuery(query);
-    }
-  }
-
-  void visitMediaDirective(MediaDirective node) {
-    emit(' @media');
-    emitMediaQueries(node.mediaQueries);
-    emit(' {');
-    for (var ruleset in node.rulesets) {
-      ruleset.visit(this);
-    }
-    emit('$_newLine\}');
-  }
-
-  void visitHostDirective(HostDirective node) {
-    emit('\n@host {');
-    for (var ruleset in node.rulesets) {
-      ruleset.visit(this);
-    }
-    emit('$_newLine\}');
-  }
-
-  /**
-   *  @page : pseudoPage {
-   *    decls
-   *  }
-   */
-  void visitPageDirective(PageDirective node) {
-    emit('$_newLine@page');
-    if (node.hasIdent || node.hasPseudoPage) {
-      if (node.hasIdent) emit(' ');
-      emit(node._ident);
-      emit(node.hasPseudoPage ? ':${node._pseudoPage}' : '');
-    }
-    emit(' ');
-
-    var declsMargin = node._declsMargin;
-    var declsMarginLength = declsMargin.length;
-    for (var i = 0; i < declsMarginLength; i++) {
-      if (i > 0) emit(_newLine);
-      emit('{$_newLine');
-      declsMargin[i].visit(this);
-      emit('}');
-    }
-  }
-
-  /** @charset "charset encoding" */
-  void visitCharsetDirective(CharsetDirective node) {
-    emit('$_newLine@charset "${node.charEncoding}";');
-  }
-
-  void visitImportDirective(ImportDirective node) {
-    bool isStartingQuote(String ch) => ('\'"'.indexOf(ch[0]) >= 0);
-
-    if (_isTesting) {
-      // Emit assuming url() was parsed; most suite tests use url function.
-      emit(' @import url(${node.import})');
-    } else if (isStartingQuote(node.import)) {
-      emit(' @import ${node.import}');
-    } else {
-      // url(...) isn't needed only a URI can follow an @import directive; emit
-      // url as a string.
-      emit(' @import "${node.import}"');
-    }
-    emitMediaQueries(node.mediaQueries);
-    emit(';');
-  }
-
-  void visitKeyFrameDirective(KeyFrameDirective node) {
-    emit('$_newLine${node.keyFrameName} ');
-    node.name.visit(this);
-    emit('$_sp{$_newLine');
-    for (final block in node._blocks) {
-      block.visit(this);
-    }
-    emit('}');
-  }
-
-  void visitFontFaceDirective(FontFaceDirective node) {
-    emit('$_newLine@font-face ');
-    emit('$_sp{$_newLine');
-    node._declarations.visit(this);
-    emit('}');
-  }
-
-  void visitKeyFrameBlock(KeyFrameBlock node) {
-    emit('$_sp$_sp');
-    node._blockSelectors.visit(this);
-    emit('$_sp{$_newLine');
-    node._declarations.visit(this);
-    emit('$_sp$_sp}$_newLine');
-  }
-
-  void visitStyletDirective(StyletDirective node) {
-    emit('/* @stylet export as ${node.dartClassName} */\n');
-  }
-
-  void visitNamespaceDirective(NamespaceDirective node) {
-    bool isStartingQuote(String ch) => ('\'"'.indexOf(ch) >= 0);
-
-    if (isStartingQuote(node._uri)) {
-      emit(' @namespace ${node.prefix}"${node._uri}"');
-    } else {
-      if (_isTesting) {
-        // Emit exactly was we parsed.
-        emit(' @namespace ${node.prefix}url(${node._uri})');
-      } else {
-        // url(...) isn't needed only a URI can follow a:
-        //    @namespace prefix directive.
-        emit(' @namespace ${node.prefix}${node._uri}');
-      }
-    }
-    emit(';');
-  }
-
-  void visitVarDefinitionDirective(VarDefinitionDirective node) {
-    visitVarDefinition(node.def);
-    emit(';$_newLine');
-  }
-
-  void visitMixinRulesetDirective(MixinRulesetDirective node) {
-    emit('@mixin ${node.name} {');
-    for (var ruleset in node.rulesets) {
-      ruleset.visit(this);
-    }
-    emit('}');
-  }
-
-  void visitMixinDeclarationDirective(MixinDeclarationDirective node) {
-    emit('@mixin ${node.name} {\n');
-    visitDeclarationGroup(node.declarations);
-    emit('}');
-  }
-
-  /**
-   * Added optional newLine for handling @include at top-level vs/ inside of
-   * a declaration group.
-   */
-  void visitIncludeDirective(IncludeDirective node, [bool topLevel = true]) {
-    if (topLevel) emit(_newLine);
-    emit('@include ${node.name}');
-    emit(';');
-  }
-
-  void visitContentDirective(ContentDirective node) {
-    // TODO(terry): TBD
-  }
-
-  void visitRuleSet(RuleSet node) {
-    emit("$_newLine");
-    node._selectorGroup.visit(this);
-    emit(" {$_newLine");
-    node._declarationGroup.visit(this);
-    emit("}");
-  }
-
-  void visitDeclarationGroup(DeclarationGroup node) {
-    var declarations = node.declarations;
-    var declarationsLength = declarations.length;
-    for (var i = 0; i < declarationsLength; i++) {
-      if (i > 0) emit(_newLine);
-      emit("$_sp$_sp");
-      declarations[i].visit(this);
-      emit(";");
-    }
-    if (declarationsLength > 0) emit(_newLine);
-  }
-
-  void visitMarginGroup(MarginGroup node) {
-    var margin_sym_name =
-        TokenKind.idToValue(TokenKind.MARGIN_DIRECTIVES, node.margin_sym);
-
-    emit("@$margin_sym_name {$_newLine");
-
-    visitDeclarationGroup(node);
-
-    emit("}$_newLine");
-  }
-
-  void visitDeclaration(Declaration node) {
-    String importantAsString() => node.important ? '$_sp!important' : '';
-
-    emit("${node.property}: ");
-    node._expression.visit(this);
-
-    emit("${importantAsString()}");
-  }
-
-  void visitVarDefinition(VarDefinition node) {
-    emit("var-${node.definedName}: ");
-    node._expression.visit(this);
-  }
-
-  void visitIncludeMixinAtDeclaration(IncludeMixinAtDeclaration node) {
-    // Don't emit a new line we're inside of a declaration group.
-    visitIncludeDirective(node.include, false);
-  }
-
-  void visitExtendDeclaration(ExtendDeclaration node) {
-    emit("@extend ");
-    for (var selector in node.selectors) {
-      selector.visit(this);
-    }
-  }
-
-  void visitSelectorGroup(SelectorGroup node) {
-    var selectors = node.selectors;
-    var selectorsLength = selectors.length;
-    for (var i = 0; i < selectorsLength; i++) {
-      if (i > 0) emit(',$_sp');
-      selectors[i].visit(this);
-    }
-  }
-
-  void visitSimpleSelectorSequence(SimpleSelectorSequence node) {
-    emit('${node._combinatorToString}');
-    node.simpleSelector.visit(this);
-  }
-
-  void visitSimpleSelector(SimpleSelector node) {
-    emit(node.name);
-  }
-
-  void visitNamespaceSelector(NamespaceSelector node) {
-    emit(node.toString());
-  }
-
-  void visitElementSelector(ElementSelector node) {
-    emit(node.toString());
-  }
-
-  void visitAttributeSelector(AttributeSelector node) {
-    emit(node.toString());
-  }
-
-  void visitIdSelector(IdSelector node) {
-    emit(node.toString());
-  }
-
-  void visitClassSelector(ClassSelector node) {
-    emit(node.toString());
-  }
-
-  void visitPseudoClassSelector(PseudoClassSelector node) {
-    emit(node.toString());
-  }
-
-  void visitPseudoElementSelector(PseudoElementSelector node) {
-    emit(node.toString());
-  }
-
-  void visitPseudoClassFunctionSelector(PseudoClassFunctionSelector node) {
-    emit(":${node.name}(");
-    node.expression.visit(this);
-    emit(')');
-  }
-
-  void visitPseudoElementFunctionSelector(PseudoElementFunctionSelector node) {
-    emit("::${node.name}(");
-    node.expression.visit(this);
-    emit(')');
-  }
-
-  void visitNegationSelector(NegationSelector node) {
-    emit(':not(');
-    node.negationArg.visit(this);
-    emit(')');
-  }
-
-  void visitSelectorExpression(SelectorExpression node) {
-    var expressions = node.expressions;
-    var expressionsLength = expressions.length;
-    for (var i = 0; i < expressionsLength; i++) {
-      // Add space seperator between terms without an operator.
-      var expression = expressions[i];
-      expression.visit(this);
-    }
-  }
-
-  void visitUnicodeRangeTerm(UnicodeRangeTerm node) {
-    if (node.hasSecond) {
-      emit("U+${node.first}-${node.second}");
-    } else {
-      emit("U+${node.first}");
-    }
-  }
-
-  void visitLiteralTerm(LiteralTerm node) {
-    emit(node.text);
-  }
-
-  void visitHexColorTerm(HexColorTerm node) {
-    var mappedName;
-    if (_isTesting && (node.value is! BAD_HEX_VALUE)) {
-      mappedName = TokenKind.hexToColorName(node.value);
-    }
-    if (mappedName == null) {
-      mappedName = '#${node.text}';
-    }
-
-    emit(mappedName);
-  }
-
-  void visitNumberTerm(NumberTerm node) {
-    visitLiteralTerm(node);
-  }
-
-  void visitUnitTerm(UnitTerm node) {
-    emit(node.toString());
-  }
-
-  void visitLengthTerm(LengthTerm node) {
-    emit(node.toString());
-  }
-
-  void visitPercentageTerm(PercentageTerm node) {
-    emit('${node.text}%');
-  }
-
-  void visitEmTerm(EmTerm node) {
-    emit('${node.text}em');
-  }
-
-  void visitExTerm(ExTerm node) {
-    emit('${node.text}ex');
-  }
-
-  void visitAngleTerm(AngleTerm node) {
-    emit(node.toString());
-  }
-
-  void visitTimeTerm(TimeTerm node) {
-    emit(node.toString());
-  }
-
-  void visitFreqTerm(FreqTerm node) {
-    emit(node.toString());
-  }
-
-  void visitFractionTerm(FractionTerm node) {
-    emit('${node.text}fr');
-  }
-
-  void visitUriTerm(UriTerm node) {
-    emit('url("${node.text}")');
-  }
-
-  void visitResolutionTerm(ResolutionTerm node) {
-    emit(node.toString());
-  }
-
-  void visitViewportTerm(ViewportTerm node) {
-    emit(node.toString());
-  }
-
-  void visitFunctionTerm(FunctionTerm node) {
-    // TODO(terry): Optimize rgb to a hexcolor.
-    emit('${node.text}(');
-    node._params.visit(this);
-    emit(')');
-  }
-
-  void visitGroupTerm(GroupTerm node) {
-    emit('(');
-    var terms = node._terms;
-    var termsLength = terms.length;
-    for (var i = 0; i < termsLength; i++) {
-      if (i > 0) emit('$_sp');
-      terms[i].visit(this);
-    }
-    emit(')');
-  }
-
-  void visitItemTerm(ItemTerm node) {
-    emit('[${node.text}]');
-  }
-
-  void visitIE8Term(IE8Term node) {
-    visitLiteralTerm(node);
-  }
-
-  void visitOperatorSlash(OperatorSlash node) {
-    emit('/');
-  }
-
-  void visitOperatorComma(OperatorComma node) {
-    emit(',');
-  }
-
-  void visitOperatorPlus(OperatorPlus node) {
-    emit('+');
-  }
-
-  void visitOperatorMinus(OperatorMinus node) {
-    emit('-');
-  }
-
-  void visitVarUsage(VarUsage node) {
-    emit('var(${node.name}');
-    if (!node.defaultValues.isEmpty) {
-      emit(',');
-      for (var defaultValue in node.defaultValues) {
-        emit(' ');
-        defaultValue.visit(this);
-      }
-    }
-    emit(')');
-  }
-
-  void visitExpressions(Expressions node) {
-    var expressions = node.expressions;
-    var expressionsLength = expressions.length;
-    for (var i = 0; i < expressionsLength; i++) {
-      // Add space seperator between terms without an operator.
-      // TODO(terry): Should have a BinaryExpression to solve this problem.
-      var expression = expressions[i];
-      if (i > 0 &&
-          !(expression is OperatorComma || expression is OperatorSlash)) {
-        emit(' ');
-      }
-      expression.visit(this);
-    }
-  }
-
-  void visitBinaryExpression(BinaryExpression node) {
-    // TODO(terry): TBD
-    throw UnimplementedError;
-  }
-
-  void visitUnaryExpression(UnaryExpression node) {
-    // TODO(terry): TBD
-    throw UnimplementedError;
-  }
-
-  void visitIdentifier(Identifier node) {
-    emit(node.name);
-  }
-
-  void visitWildcard(Wildcard node) {
-    emit('*');
-  }
-
-  void visitDartStyleExpression(DartStyleExpression node) {
-    // TODO(terry): TBD
-    throw UnimplementedError;
-  }
-}