/**
* Tries to calculate given line's indent column assuming that there might be a comment at the
* given indent offset (see {@link #getCommentPrefix(IElementType)}).
*
* @param line target line
* @param indentOffset start indent offset to use for the given line
* @param lineEndOffset given line's end offset
* @param fallbackColumn column to return if it's not possible to apply comment-specific indent
* calculation rules
* @return given line's indent column to use
*/
private int calcIndent(int line, int indentOffset, int lineEndOffset, int fallbackColumn) {
final HighlighterIterator it = myEditor.getHighlighter().createIterator(indentOffset);
IElementType tokenType = it.getTokenType();
Language language = tokenType.getLanguage();
TokenSet comments = myComments.get(language);
if (comments == null) {
ParserDefinition definition = LanguageParserDefinitions.INSTANCE.forLanguage(language);
if (definition != null) {
comments = definition.getCommentTokens();
}
if (comments == null) {
return fallbackColumn;
} else {
myComments.put(language, comments);
}
}
if (comments.contains(tokenType) && indentOffset == it.getStart()) {
String prefix = COMMENT_PREFIXES.get(tokenType);
if (prefix == null) {
prefix = getCommentPrefix(tokenType);
}
if (!NO_COMMENT_INFO_MARKER.equals(prefix)) {
final int indentInsideCommentOffset =
CharArrayUtil.shiftForward(
myChars, indentOffset + prefix.length(), lineEndOffset, " \t");
if (indentInsideCommentOffset < lineEndOffset) {
int indent = myEditor.calcColumnNumber(indentInsideCommentOffset, line);
indentAfterUncomment.put(line, indent - prefix.length());
return indent;
}
}
}
return fallbackColumn;
}
private static void initState(IElementType root, PsiBuilder builder, ErrorState state) {
PsiFile file = builder.getUserDataUnprotected(FileContextUtil.CONTAINING_FILE_KEY);
state.completionState = file == null ? null : file.getUserData(COMPLETION_STATE_KEY);
Language language = file == null ? root.getLanguage() : file.getLanguage();
state.caseSensitive = language.isCaseSensitive();
ParserDefinition parserDefinition = LanguageParserDefinitions.INSTANCE.forLanguage(language);
if (parserDefinition != null) {
state.commentTokens = parserDefinition.getCommentTokens();
state.whitespaceTokens = parserDefinition.getWhitespaceTokens();
}
PairedBraceMatcher matcher = LanguageBraceMatching.INSTANCE.forLanguage(language);
state.braces = matcher == null ? null : matcher.getPairs();
if (state.braces != null && state.braces.length == 0) state.braces = null;
}
public static boolean isCommentToken(
@NotNull IElementType tokenType, @NotNull LanguageVersion languageVersion) {
final Language language = tokenType.getLanguage();
if (language != languageVersion.getLanguage()) {
return false;
}
boolean inComments = false;
final ParserDefinition parserDefinition =
LanguageParserDefinitions.INSTANCE.forLanguage(language);
if (parserDefinition != null) {
final TokenSet commentTokens = parserDefinition.getCommentTokens(languageVersion);
if (commentTokens.contains(tokenType)) {
inComments = true;
}
}
return inComments;
}
public PsiBuilder createBuilder(final Lexer lexer, final Language lang, final CharSequence seq) {
ParserDefinition parserDefinition = LanguageParserDefinitions.INSTANCE.forLanguage(lang);
return new PsiBuilderImpl(
lexer, parserDefinition.getWhitespaceTokens(), parserDefinition.getCommentTokens(), seq);
}