Examples with XmlComment com.intellij.psi.xml.XmlComment used on opensource projects

Example 6 with XmlComment

use of com.intellij.psi.xml.XmlComment in project intellij-community by JetBrains.

the class HtmlConditionalCommentInjector method parseConditionalCommentBoundaries.

/**
   * Tries to parse given element as <a href="http://msdn.microsoft.com/en-us/library/ms537512(v=vs.85).aspx">conditional comment</a>.
   * 
   * @param host  target element to parse
   * @return      {@code null} if given element is not a conditional comment;
   *              pair like {@code (conditional comment start element; conditional comment end element)} otherwise
   */
@Nullable
private static Pair<ASTNode, ASTNode> parseConditionalCommentBoundaries(@NotNull PsiElement host) {
    if (!(host instanceof XmlComment)) {
        return null;
    }
    final ASTNode comment = host.getNode();
    if (comment == null) {
        return null;
    }
    final ASTNode conditionalStart = comment.findChildByType(TokenSet.create(XmlTokenType.XML_CONDITIONAL_COMMENT_START_END));
    if (conditionalStart == null) {
        return null;
    }
    final ASTNode conditionalEnd = comment.findChildByType(TokenSet.create(XmlTokenType.XML_CONDITIONAL_COMMENT_END_START));
    if (conditionalEnd == null) {
        return null;
    }
    final ASTNode endOfEnd = comment.findChildByType(TokenSet.create(XmlTokenType.XML_CONDITIONAL_COMMENT_END));
    return endOfEnd == null ? null : Pair.create(conditionalStart, conditionalEnd);
}