drop old backends

plugins/org.chromium.sdk.wipbackend.wk118685/src/org/chromium/sdk/internal/wip/WipExpressionBuilder.java

-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-package org.chromium.sdk.internal.wip;
-
-import java.util.regex.Pattern;
-
-import org.json.simple.JSONValue;
-
-/**
- * Builder for fully qualified name strings.
- */
-public class WipExpressionBuilder {
-
-  /**
-   * Holds a value short name and optionally a qualified name builder.
-   */
-  public interface ValueNameBuilder {
-    String getShortName();
-
-    /**
-     * @return value qualified name builder or null if there's no qualified name for the value
-     */
-    QualifiedNameBuilder getQualifiedNameBuilder();
-  }
-
-  /**
-   * Builds a qualified name of some value.
-   */
-  public interface QualifiedNameBuilder {
-    void append(StringBuilder output);
-
-    /**
-     * @return whether the qualified name should be enclosed before putting inside a bigger
-     *   expression
-     */
-    boolean needsParentheses();
-  }
-
-  /**
-   * Builds a qualified name of a property of some object.
-   */
-  interface PropertyNameBuilder {
-    void build(String name, StringBuilder output);
-
-    /**
-     * @return whether the qualified name should be enclosed before putting inside a bigger
-     *   expression
-     */
-    boolean needsParentheses();
-  }
-
-  /**
-   * Combines property name with a {@link PropertyNameBuilder}.
-   */
-  static ValueNameBuilder createValueOfPropertyNameBuilder(final String propertyName,
-      final PropertyNameBuilder propertyNameBuilder) {
-
-    final QualifiedNameBuilder qualifiedNameBuilder;
-    if (propertyNameBuilder == null) {
-      qualifiedNameBuilder = null;
-    } else {
-      qualifiedNameBuilder = new QualifiedNameBuilder() {
-        @Override public boolean needsParentheses() {
-          return propertyNameBuilder.needsParentheses();
-        }
-
-        @Override public void append(StringBuilder output) {
-          propertyNameBuilder.build(propertyName, output);
-        }
-      };
-    }
-
-    return new ValueNameBuilder() {
-      @Override public String getShortName() {
-        return propertyName;
-      }
-
-      @Override public QualifiedNameBuilder getQualifiedNameBuilder() {
-        return qualifiedNameBuilder;
-      }
-    };
-  }
-
-  static ValueNameBuilder createRootName(final String name, final boolean needsParentheses) {
-    final QualifiedNameBuilder qualifiedNameBuilder = new QualifiedNameBuilder() {
-      @Override
-      public void append(StringBuilder output) {
-        output.append(name);
-      }
-
-      @Override
-      public boolean needsParentheses() {
-        return needsParentheses;
-      }
-    };
-    return new ValueNameBuilder() {
-      @Override public String getShortName() {
-        return name;
-      }
-
-      @Override public QualifiedNameBuilder getQualifiedNameBuilder() {
-        return qualifiedNameBuilder;
-      }
-    };
-  }
-
-  public static ValueNameBuilder createRootNameNoDerived(final String name) {
-    return new ValueNameBuilder() {
-      @Override public String getShortName() {
-        return name;
-      }
-
-      @Override public QualifiedNameBuilder getQualifiedNameBuilder() {
-        return null;
-      }
-    };
-  }
-
-  /**
-   * Builder for a qualified name of some object.
-   */
-  static class ObjectPropertyNameBuilder implements PropertyNameBuilder {
-    private final QualifiedNameBuilder objectNameBuilder;
-
-    ObjectPropertyNameBuilder(QualifiedNameBuilder objectNameBuilder) {
-      this.objectNameBuilder = objectNameBuilder;
-    }
-
-    @Override
-    public void build(String name, StringBuilder output) {
-      buildParentRef(output);
-      if (ALL_DIGITS.matcher(name).matches()) {
-        output.append("[").append(name).append("]");
-      } else {
-        // TODO(peter.rybin): check that name is really a valid identifier.
-        boolean isNameSimple = name.indexOf(' ') != -1;
-        if (isNameSimple) {
-          output.append(".").append(name);
-        } else {
-          output.append("[\"").append(JSONValue.escape(name)).append("\"]");
-        }
-      }
-    }
-
-    private void buildParentRef(StringBuilder output) {
-      if (objectNameBuilder.needsParentheses()) {
-        output.append('(');
-        objectNameBuilder.append(output);
-        output.append(')');
-      } else {
-        objectNameBuilder.append(output);
-      }
-    }
-
-    @Override
-    public boolean needsParentheses() {
-      return false;
-    }
-  }
-
-  static final Pattern ALL_DIGITS = Pattern.compile("\\d+");
-}