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compilers:sample-lab-exam
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compilers:sample-lab-exam [2016/12/16 22:42] deva created |
compilers:sample-lab-exam [2016/12/16 22:46] deva |
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| Change/extend the compiler of the While language as follows: | Change/extend the compiler of the While language as follows: | ||
| - | * Change the definition of variable names (identifiers) so that they have to contain at least one digit. | + | * Grade 2: Change the definition of variable names (identifiers) so that they have to contain at least one digit. |
| - | * Add the ''elsif'' keyword to the language. | + | * Grade 3: Add the ''elsif'' keyword to the language. |
| - | * Change the syntax of branching so that it allows multiple branches: | + | * Grade 4: Change the syntax of branching so that it allows multiple branches. Example: |
| <code> | <code> | ||
| if x < 10 then | if x < 10 then | ||
| Line 15: | Line 15: | ||
| end | end | ||
| </code> | </code> | ||
| - | * Emit error message if the condition of an ''elsif'' is not boolean. | + | * Grade 5: Emit error message if the condition of an ''elsif'' is not boolean. |
compilers/sample-lab-exam.txt · Last modified: 2016/12/16 22:46 by deva
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