@Nullable
public static PsiElement skipSiblingsBackwardByPredicate(
@Nullable PsiElement element, Predicate<PsiElement> elementsToSkip) {
if (element == null) return null;
for (PsiElement e = element.getPrevSibling(); e != null; e = e.getPrevSibling()) {
if (elementsToSkip.apply(e)) continue;
return e;
}
return null;
}
public static String getPrevSiblingAsTextUntil(
PsiElement psiElement, ElementPattern pattern, boolean includeMatching) {
String prevText = "";
for (PsiElement child = psiElement.getPrevSibling();
child != null;
child = child.getPrevSibling()) {
if (pattern.accepts(child)) {
if (includeMatching) {
return child.getText() + prevText;
}
return prevText;
} else {
prevText = child.getText() + prevText;
}
}
return prevText;
}
// Delete given element and all the elements separating it from the neighboring elements of the
// same class
public static void deleteElementWithDelimiters(@NotNull PsiElement element) {
PsiElement paramBefore = PsiTreeUtil.getPrevSiblingOfType(element, element.getClass());
PsiElement from;
PsiElement to;
if (paramBefore != null) {
from = paramBefore.getNextSibling();
to = element;
} else {
PsiElement paramAfter = PsiTreeUtil.getNextSiblingOfType(element, element.getClass());
from = element;
to = paramAfter != null ? paramAfter.getPrevSibling() : element;
}
PsiElement parent = element.getParent();
parent.deleteChildRange(from, to);
}
