public static PsiElement[] parsePattern(
Project project,
String context,
String pattern,
FileType fileType,
Language language,
String extension,
boolean physical) {
int offset = context.indexOf(PATTERN_PLACEHOLDER);
final int patternLength = pattern.length();
final String patternInContext = context.replace(PATTERN_PLACEHOLDER, pattern);
final String ext = extension != null ? extension : fileType.getDefaultExtension();
final String name = "__dummy." + ext;
final PsiFileFactory factory = PsiFileFactory.getInstance(project);
final PsiFile file =
language == null
? factory.createFileFromText(
name, fileType, patternInContext, LocalTimeCounter.currentTime(), physical, true)
: factory.createFileFromText(name, language, patternInContext, physical, true);
if (file == null) {
return PsiElement.EMPTY_ARRAY;
}
final List<PsiElement> result = new ArrayList<PsiElement>();
PsiElement element = file.findElementAt(offset);
if (element == null) {
return PsiElement.EMPTY_ARRAY;
}
PsiElement topElement = element;
element = element.getParent();
while (element != null) {
if (element.getTextRange().getStartOffset() == offset
&& element.getTextLength() <= patternLength) {
topElement = element;
}
element = element.getParent();
}
if (topElement instanceof PsiFile) {
return topElement.getChildren();
}
final int endOffset = offset + patternLength;
result.add(topElement);
topElement = topElement.getNextSibling();
while (topElement != null && topElement.getTextRange().getEndOffset() <= endOffset) {
result.add(topElement);
topElement = topElement.getNextSibling();
}
return result.toArray(new PsiElement[result.size()]);
}
private static boolean checkErrorElements(PsiElement element) {
final boolean[] result = {true};
final int endOffset = element.getTextRange().getEndOffset();
element.accept(
new PsiRecursiveElementWalkingVisitor() {
@Override
public void visitElement(PsiElement element) {
super.visitElement(element);
if (element instanceof PsiErrorElement
&& element.getTextRange().getEndOffset() == endOffset) {
result[0] = false;
}
}
});
return result[0];
}