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authorzlg <zlg@zlg.space>2015-01-30 00:55:59 -0800
committerzlg <zlg@zlg.space>2015-01-30 00:55:59 -0800
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parentEnsure 1-02's solution compiles (diff)
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Solve Exercise 5-18: error-recovering `dcl`
This exercise was a real pain in the ass. The original use of getch() and ungetch() was inferior to a line-based approach. It really doesn't seem like the way a parser should be built, but it taught me a little about the order of recursion. I'm convinced that a debugger is necessary if you want to build a good parser. This implementation doesn't recurse in a natural way, or even enough to stack data type prefixes. Hopefully by the time I get to 5-20 I'll have enough ideas to implement something that *does* recurse well.
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