I got this assignment from my college: To create a working Compiler or Interpreter You need to design your own Language And build the compiler using Java or preferably C. This is one scary nightmare...dang....I wish I can just wake me up... but I can't this is not a nightmare. T_T Btw, does anyone here has any experience on creating compiler or interpreter using C? I am designing a language which is the combination of C and PHP. And I need help.

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Hi;

Any more parameters for this assignment? number of statements, functions etc..

it sounds hard, but just take a deep breath...

start with the actual syntax:

identifiers, functions, operators, separators, etc...
decide what legal and illegal syntax is

then write your pattern-matching code to look for these things

now that you can identify the parts of your language, all you need to do is translate it to C and compile and voila, u r done.

start with a simple arithmetic language, i.e. make sure the operators are infix (or postfix or prefix or whatever u like). make sure the operands are valid (i.e. numeric)

now expand it by adding variables. make sure variables are declared before being used.

i think u see where I am going now...

good luck!

- arp

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Hi!
I wrote C interpreter, Pascal interpreter, Icon interpreter,
C->Pascal translator and C->ICON translator
(everything in ANSI C)


You should read something about Flex/Bison (lex/YACC)
(use google to find it)

--
eldeo

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wow thats brave im in year 9, hope i don't have to do anything llike that later on in life! i think ill just stick to 3d graphics, its somewhat easier

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yeah....
first of all design the syntax... and get the patterns/ regular expressions to identify the tokens( identifier/variable, constructs, expressions etc).

you can then use lex to generate a program which reads the source and generates the tokens...

call this program from your program.. now that u have the tokens... process then in your program accordingly....

I have heard of yacc but never used it... just find out more abt it and c if that would help...
all the best...
rest assured that though it is difficult, it would be very satisfying once u c the result....

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