Method IsHeadOfFoldBlock

scintilla/src/Document.h:139–141

	}

	bool IsHeadOfFoldBlock(int line) {
		return beginFoldBlock == line && line < endFoldBlock;
	}

	bool IsBodyOfFoldBlock(int line) {
		return beginFoldBlock != -1 && beginFoldBlock < line && line < endFoldBlock;