boolean (PsiBuilder b, int l) { if (!recursion_guard_(b, l, "scheme_1_0")) return false; boolean r; r = consumeToken(b, LETTER); if (!r) r = consumeToken(b, DIGIT); if (!r) r = consumeToken(b, PLUS); if (!r) r = consumeToken(b, MINUS); if (!r) r = consumeToken(b, DOT); return r; }