Created
May 18, 2024 08:28
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A CSC450 ass to build a program (in any lang) that recognizes var declaration in java
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| void main() { | |
| // call func | |
| // print(javaVarDecParser( | |
| // accSpec: 'public', | |
| // datatype: 'String', | |
| // varName: 'uname', | |
| // assOp: '=', | |
| // val: 'ash267', | |
| // sc: ';')); | |
| print(javaVarDecParser( | |
| accSpec: 'public', datatype: 'Money', varName: '76tree', sc: '+')); | |
| } | |
| enum ValidDatatypes { String, char, int, float, boolean } | |
| enum AcceptedAccSpec { private, public, protected } | |
| // var dec format | |
| // [access specifier] datatype var_name = value; | |
| // OR | |
| // [access specifier] datatype var_name; | |
| // e.g public int age = 6; | |
| // 3 kinds access specifiers; public, private, and protected | |
| bool javaVarDecParser( | |
| {String accSpec = "", | |
| required String datatype, | |
| required String varName, | |
| String assOp = "", | |
| String val = "", | |
| required String sc}) { | |
| int testPassed = 0; | |
| print('testPassed: $testPassed'); | |
| if (!accSpec.isEmpty) { | |
| // contains a str; not empty | |
| if (accSpec.contains(AcceptedAccSpec.private.name) || | |
| accSpec.contains(AcceptedAccSpec.public.name) || | |
| accSpec.contains(AcceptedAccSpec.protected.name)) { | |
| // accepted access specifier found | |
| // record! | |
| testPassed = testPassed + 1; | |
| print('check1, testPassed: $testPassed'); | |
| } | |
| } | |
| if (!assOp.isEmpty) { | |
| // contains a str | |
| if (assOp.contains('=')) { | |
| // ass op found! | |
| // record! | |
| testPassed = testPassed + 1; | |
| print('check2, testPassed: $testPassed'); | |
| } | |
| } | |
| if (!val.isEmpty) { | |
| // record! | |
| testPassed = testPassed + 1; | |
| print('check3, testPassed: $testPassed'); | |
| } | |
| if (datatype.contains(ValidDatatypes.String.name) || | |
| datatype.contains(ValidDatatypes.char.name) || | |
| datatype.contains(ValidDatatypes.int.name) || | |
| datatype.contains(ValidDatatypes.float.name) || | |
| datatype.contains(ValidDatatypes.boolean.name)) { | |
| // valid datatype found | |
| // record! | |
| testPassed = testPassed + 1; | |
| print('check4, testPassed: $testPassed'); | |
| } | |
| if (!varName.contains(RegExp(r'[0-9]'), 0)) { | |
| // var name doesn't start with a non-letter | |
| // record! | |
| testPassed = testPassed + 1; | |
| print('check5, testPassed: $testPassed'); | |
| } | |
| if (sc.contains(';')) { | |
| // semicolon found | |
| // record! | |
| testPassed = testPassed + 1; | |
| print('check6, testPassed: $testPassed'); | |
| } | |
| // check test passed | |
| if (testPassed < 3) { | |
| print('failed! testPassed: $testPassed'); | |
| return false; | |
| } else { | |
| print('success! testPassed: $testPassed'); | |
| return true; | |
| } | |
| } |
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