diff -r 940b6c68102a -r 72688efdf17c marking4/output --- a/marking4/output Thu Oct 31 11:33:02 2019 +0000 +++ b/marking4/output Thu Oct 31 12:01:56 2019 +0000 @@ -1,95 +1,41 @@ -Below is the feedback and provisional marks for your submission -for the core part of assignment 9. Please note all marks are provisional until -ratified by the assessment board -- this is not an official -results transcript. - -re.scala does not contain vars, returns, Arrays, ListBuffers etc? +postfix.scala does not contain vars, returns, Arrays, ListBuffers etc? + --> success +postfix.scala runs? --> success -re.scala runs? - --> success - nullable(ZERO) == false - nullable(ONE) == true - nullable(CHAR('a')) == false - nullable(ZERO | ONE) == true - nullable(ZERO | CHAR('a')) == false - nullable(ONE ~ ONE) == true - nullable(ONE ~ CHAR('a')) == false - nullable(STAR(ZERO)) == true + syard(split("3 + 4 * ( 2 - 1 )")) == List("3", "4", "2", "1", "-", "*", "+") + syard(split("( ( ( 3 ) ) + ( ( 4 + ( 5 ) ) ) )")) == List("3", "4", "5", "+", "+") + syard(split("5 + 7 / 2")) == List("5", "7", "2", "/", "+") + syard(split("5 * 7 / 2")) == List("5", "7", "*", "2", "/") --> success - der('a', ZERO | ONE) == (ZERO | ZERO) - der('a', (CHAR('a') | ONE) ~ CHAR('a')) == ALT((ONE | ZERO) ~ CHAR('a'), ONE) - der('a', (CHAR('a') | CHAR('a')) ~ CHAR('a')) == (ONE | ONE) ~ CHAR('a') - der('a', STAR(CHAR('a'))) == (ONE ~ STAR(CHAR('a'))) - der('b', STAR(CHAR('a'))) == (ZERO ~ STAR(CHAR('a'))) - - val r0 = "a" ~ "b" ~ "c" - assert(der('a', r0) == (ONE ~ "b") ~ "c") - assert(der('b', r0) == (ZERO ~ "b") ~ "c") - assert(der('c', r0) == (ZERO ~ "b") ~ "c") - - val r1 = (ONE ~ "b") ~ "c" - assert(der('a', r1) == ((ZERO ~ "b") | ZERO) ~ "c") - assert(der('b', r1) == ((ZERO ~ "b") | ONE) ~ "c") - assert(der('c', r1) == ((ZERO ~ "b") | ZERO) ~ "c") - - val r2 = ((ZERO ~ "b") | ONE) ~ "c" - assert(der('a', r2) == ((((ZERO ~ "b") | ZERO) ~ "c") | ZERO)) - assert(der('b', r2) == ((((ZERO ~ "b") | ZERO) ~ "c") | ZERO)) - assert(der('c', r2) == ((((ZERO ~ "b") | ZERO) ~ "c") | ONE)) + compute(syard(split("3 + 4 * ( 2 - 1 )"))) == 7 + compute(syard(split("10 + 12 * 33"))) == 406 + compute(syard(split("( 5 + 7 ) * 2"))) == 24 + compute(syard(split("5 + 7 / 2"))) == 8 + compute(syard(split("5 * 7 / 2"))) == 17 + compute(syard(split("9 + 24 / ( 7 - 3 )"))) == 15 + --> success +postfix2.scala does not contain vars, returns, Arrays, ListBuffers etc? + --> success +postfix2.scala runs? --> success - simp(ZERO | ONE) == ONE - simp(STAR(ZERO | ONE)) == STAR(ZERO | ONE) - simp(ONE ~ (ONE ~ (ONE ~ CHAR('a')))) == CHAR('a') - simp(((ONE ~ ONE) ~ ONE) ~ CHAR('a')) == CHAR('a') - simp(((ONE | ONE) ~ ONE) ~ CHAR('a')) == CHAR('a') - simp(ONE ~ (ONE ~ (ONE ~ ZERO))) == ZERO - simp(ALT(ONE ~ (ONE ~ (ONE ~ ZERO)), CHAR('a'))) == CHAR('a') - simp(CHAR('a') | CHAR('a')) == CHAR('a') - simp(CHAR('a') ~ CHAR('a')) == CHAR('a') ~ CHAR('a') - simp(ONE | CHAR('a')) == (ONE | CHAR('a')) - simp(ALT((CHAR('a') | ZERO) ~ ONE, - ((ONE | CHAR('b')) | CHAR('c')) ~ (CHAR('d') ~ ZERO))) == CHAR('a') - simp((ZERO | ((ZERO | ZERO) | (ZERO | ZERO))) ~ ((ONE | ZERO) | ONE ) ~ (CHAR('a'))) == ZERO - simp(ALT(ONE | ONE, ONE | ONE)) == ONE - simp(ALT(ZERO | CHAR('a'), CHAR('a') | ZERO)) == CHAR('a') + syard(split("3 + 4 * ( 2 - 1 )")) == List("3", "4", "2", "1", "-", "*", "+") + syard(split("( ( ( 3 ) ) + ( ( 4 + ( 5 ) ) ) )")) == List("3", "4", "5", "+", "+") + syard(split("5 + 7 / 2")) == List("5", "7", "2", "/", "+") + syard(split("5 * 7 / 2")) == List("5", "7", "*", "2", "/") + syard(split("3 + 4 * 8 / ( 5 - 1 ) ^ 2 ^ 3")) == + List("3", "4", "8", "*", "5", "1", "-", "2", "3", "^", "^", "/", "+") + + compute(syard(split("3 + 4 * ( 2 - 1 )"))) == 7 + compute(syard(split("10 + 12 * 33"))) == 406 + compute(syard(split("( 5 + 7 ) * 2"))) == 24 + compute(syard(split("5 + 7 / 2"))) == 8 + compute(syard(split("5 * 7 / 2"))) == 17 + compute(syard(split("9 + 24 / ( 7 - 3 )"))) == 15 + compute(syard(split("4 ^ 3 ^ 2"))) == 262144 + compute(syard(split("4 ^ ( 3 ^ 2 )"))) == 262144 + compute(syard(split("( 4 ^ 3 ) ^ 2"))) == 4096 + compute(syard(split("( 3 + 1 ) ^ 2 ^ 3"))) == 65536 --> success - val EVIL = SEQ(STAR(STAR(CHAR('a'))), CHAR('b')) - ders(("a" * 5).toList,EVIL) == SEQ(SEQ(STAR(CHAR('a')),STAR(STAR(CHAR('a')))),CHAR('b')) - ders(List('b'),EVIL) == ONE - ders(List('b','b'),EVIL) == ZERO - matcher(EVIL, "a" * 5 ++ "b") == true - matcher(EVIL, "a" * 50 ++ "b") == true - matcher(EVIL, "a" * 50) == false - matcher(EVIL, "b") == true - matcher(EVIL, "bb") == false - matcher("abc", "abc") == true - matcher("abc", "ab") == true - matcher(("ab" | "a") ~ (ONE | "bc"), "abc") == true - matcher(ONE, "") == true - matcher(ZERO, "") == false - matcher(ONE | CHAR('a'), "") == true - matcher(ONE | CHAR('a'), "a") == true - --> success - val EVIL = SEQ(STAR(STAR(CHAR('a'))), CHAR('b')) - size(der('a', der('a', EVIL))) == 28 - size(der('a', der('a', der('a', EVIL)))) == 58 - size(ders("aaaaaa".toList, EVIL)) == 8 - size(ders(("a" * 50).toList, EVIL)) == 8 - --> success - simp(Iterator.iterate(ONE:Rexp)(r => SEQ(r, ONE | ONE)).drop(50).next) == ONE - ...the Iterator produces the rexp - - SEQ(SEQ(SEQ(..., ONE | ONE) , ONE | ONE), ONE | ONE) - - where SEQ is nested 50 times. - - simp(Iterator.iterate(ONE:Rexp)(r => ALT(r, r)).drop(20).next) == ONE - ... the Iterator produces a rexp of size 2097151 - - val EVIL = SEQ(STAR(STAR(CHAR('a'))), CHAR('b')) - matcher(EVIL, "a" * 1000000 ++ "b") == true - matcher(EVIL, "a" * 1000000) == false - --> success -Overall mark for CW 9, Core Part -6 +Overall mark for CW 9, Preliminary Part +4