Hey guys.
I'm currently taking a course where everyone in the class will code a compiler for a simple C-like language. I'm doing mine in C# and have some general questions for efficiency and the actual architecture.
I've coded a lexer which reads code and categorizes everything into groups.
I'm using a hash table to store all of the lexems, where the key to the table is the order of appearance of a lexem in the code and the value is the type of the lexem which is simply a struct of different predefined tokens (string, integer, sub operator and etc)
In the lexer i'm using a switch while reading the file and determining what i read. Would it be possible to achieve the same with regular expressions?
Also, i'm not quiet sure about this, but this is what i plan on doing with the parser. Since my lexer returns a hash table collection of the entire coded. I can then do all of my error checking here. I will get the value of the first key of the table and then get the second one and performs syntax checks?
I've also read a bit about parse-tree but don't seem to understand what they'd be used for in my case. Is the parse tree going to be used during the actual compilation of a code? I'm not really going to be compiling it, but rather converting it to a compilable C++ code.
If you guys think of something that might improve the architecture of the whole process, please let me know!
Thanks in advance.
2  1970  pbmods 5,821
Recognized Expert Expert
Heya, gasfusion.
I'm going to go ahead and move this thread to the .NET forum, where our resident Experts will be better able to help you out.
JosAH 11,448
Recognized Expert MVP
There's a little article series on compilers in the Java Articles section; maybe you
can read it for some ideas of your own.
kind regards,
Jos
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