// Parse parser operands.
func (operands *RegisterAddressX) Parse(source string) (string, bool) {
// R
r := operand.NewRegister()
remains, ok := r.Parse(source)
if !ok {
return source, false
}
// ,(Comma)
remains, ok = share.NewComma().Parse(remains)
if !ok {
return source, false
}
// ADR
adr := operand.NewAddress()
remains, ok = adr.Parse(remains)
if !ok {
return source, false
}
// ,(Comma)
remains, ok = share.NewComma().Parse(remains)
if !ok {
return source, false
}
// X
x := operand.NewRegister()
remains, ok = x.Parse(remains)
if !ok {
return source, false
}
operands.Operands = []operand.Operand{r, adr, x}
return remains, true
}
// Parse parser operands.
func (operands *Register) Parse(source string) (string, bool) {
// R
r := operand.NewRegister()
remains, ok := r.Parse(source)
if !ok {
return source, false
}
operands.Operands = []operand.Operand{r}
return remains, true
}
// Parse parser operands.
func (operands *R1R2) Parse(source string) (string, bool) {
// R1
r1 := operand.NewRegister()
remains, ok := r1.Parse(source)
if !ok {
return source, false
}
// ,(Comma)
remains, ok = share.NewComma().Parse(remains)
if !ok {
return source, false
}
// R2
r2 := operand.NewRegister()
remains, ok = r2.Parse(remains)
if !ok {
return source, false
}
operands.Operands = []operand.Operand{r1, r2}
return remains, true
}
func TestOperandRegisterParse(t *testing.T) {
testCaseList := []testCaseForTestOperandRegisterParse{
// This is a comment line.
{
data: "; This is a comment",
expectedRemains: "; This is a comment",
expectedOK: false,
expectedOperandSingleValue: "",
expectedHasValue: false,
},
// This is a OperandRegister and a OperandRegister.
{
data: "MAIN START",
expectedRemains: "MAIN START",
expectedOK: false,
expectedOperandSingleValue: "",
expectedHasValue: false,
},
// A OperandRegister must be starts without any sapce.
{
data: " OUT BUF,LEN ",
expectedRemains: " OUT BUF,LEN ",
expectedOK: false,
expectedOperandSingleValue: "",
expectedHasValue: false,
},
{
data: "GR0, DATA1",
expectedRemains: ", DATA1",
expectedOK: true,
expectedOperandSingleValue: "GR0",
expectedHasValue: true,
},
{
data: "GR1",
expectedRemains: "",
expectedOK: true,
expectedOperandSingleValue: "GR1",
expectedHasValue: true,
},
{
data: "GR1 ; this is comment",
expectedRemains: "; this is comment",
expectedOK: true,
expectedOperandSingleValue: "GR1",
expectedHasValue: true,
},
}
for testIndex, testCase := range testCaseList {
target := operand.NewRegister()
testData := testCase.data
expectedRemains := testCase.expectedRemains
expectedOK := testCase.expectedOK
expectedOperandSingleValue := testCase.expectedOperandSingleValue
expectedHasValue := testCase.expectedHasValue
actualRemains, actualOK := target.Parse(testData)
if actualRemains != expectedRemains {
t.Errorf("testCase[%d]=%#v, expected=%#v, actual=%#v\n", testIndex, testData, expectedRemains, actualRemains)
}
if actualOK != expectedOK {
t.Errorf("testCase[%d]=%#v, expected=%#v, actual=%#v\n", testIndex, testData, expectedOK, actualOK)
}
actualOperandSingleValue := target.SingleValue
if actualOperandSingleValue != expectedOperandSingleValue {
t.Errorf("testCase[%d]=%#v, expected=%#v, actual=%#v\n", testIndex, testData, expectedOperandSingleValue, actualOperandSingleValue)
}
actualHasValue := target.HasValue
if actualHasValue != expectedHasValue {
t.Errorf("testCase[%d]=%#v, expected=%#v, actual=%#v\n", testIndex, testData, expectedHasValue, actualHasValue)
}
}
}