@Test
public void test1() {
GeneralIndicesInsertion gii = new GeneralIndicesInsertion();
gii.addInsertionRule(parseSimple("A^a'_b'"), Matrix1);
gii.addInsertionRule(parseSimple("B^a'_b'"), Matrix1);
gii.addInsertionRule(parseSimple("C^a'_b'"), Matrix1);
gii.addInsertionRule(parseSimple("cv_b'"), Matrix1);
gii.addInsertionRule(parseSimple("v^b'"), Matrix1);
CC.current().getParseManager().defaultParserPreprocessors.add(gii);
Tensor t, exp;
t = parse("A*B*C");
exp = parse("C*B*A");
TAssert.assertEquals(inverseOrderOfMatrices(t, Matrix1), exp);
t = parse("cv*A*B*C");
exp = parse("cv*C*B*A");
TAssert.assertEquals(inverseOrderOfMatrices(t, Matrix1), exp);
t = parse("A*B*C*v");
exp = parse("C*B*A*v");
TAssert.assertEquals(inverseOrderOfMatrices(t, Matrix1), exp);
t = parse("cv*A*B*C*v");
exp = parse("cv*C*B*A*v");
TAssert.assertEquals(inverseOrderOfMatrices(t, Matrix1), exp);
}
public static Tensor parse(String tensor, String upper, String lower, String... indicator) {
Indicator indicator1 =
indicator.length == 0 ? Indicator.TRUE_INDICATOR : new NamesIndicator(indicator);
return CC.current()
.getParseManager()
.parse(
tensor,
new IndicesInsertion(
ParserIndices.parseSimple(upper), ParserIndices.parseSimple(lower), indicator1));
}