help for writing compliers

hey i found a some information do check out..is is a software
Parser Generator is a YACC and Lex programming tool for Windows. As well as including a Graphical User Interface, the software also includes two versions of YACC and Lex, called AYACC and ALex. Parser Generator is able to generate C, C++ and Java parsers and lexical analysers. This includes both Unicode and Multibyte Character Set (MBCS) variants. In your applications you can create multiple, thread safe, instances of these parsers and lexical analysers. Direct support is provided with Parser Generator for Visual C++ and Borland C++ and C++Builder.

here is the link for download..hope it helps

note:-source net

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if u do find it difficult the best way is to install linux.it is same as how u install windows xp.do partion ur hard disk and install the linux os in that partion..

and u can execute the programs their..

hope it helps

For more details on Lex and YACC, refer forum thread

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Also, look at the link <a href="https://www.thefreecountry.com/programming/compilerconstruction.shtml" target="_blank" rel="nofollow noopener noreferrer">Free Compiler Construction Tools: Lexer and Parser Generators(thefreecountry.com)</a>

-Pradeep

Thanks a ton friendster7 and pradeep.😀

[off topic]
Pradeep, I know you're a Linux Guru. How about starting development activity on CE forums? Possible or its just too big for us (at this point). ?

sahanaThanks a ton friendster7 and pradeep.😀

ur welcome sahana..hope i get help here too..

sahanaThanks a ton friendster7 and pradeep.😀

Welcome Sahana.

The_Big_KPradeep, I know you're a Linux Guru. How about starting development activity on CE forums? Possible or its just too big for us (at this point). ?

Thanks for your appreciation Big K, but the word 'Guru' will be too big for me. I am also beginner in Linux and i am sure many people here will be knowing more then me. Cheers to all CE's

But i am always ready for any such knowledge sharing activities.

-Pradeep

hi.i dont think i understood this software ie parser generator too good.do i have to store the TC and this parser generator software in same folder?

i have to write a source program and have to identify the tokens of my c input file.say my lex program is
%{
%}
%%
"girl1" !"girl2" {printf("noun");}
%%
void main()
{FILE *fp1;
fp1=fopen("in.c","read");
yyin=fp1;
yylex();
}
and my c program is
in.c

girl1 sings girl2 dances

so my i first compile my lex program.then will the tokens be generated automatically?incase of unix,lex tool ie lex prgname.l is used right.what do i do in this case?

sahanado i have to store the TC and this parser generator software in same folder?

No, you don't need to keep the TC and lex tool in the same folder.

Basically, while writing lex programs, you specify tokens and the action to be performed when that token is found.

When you compile your lex program (like the one given above), it will generate a .c file that contain c code for the specified task.

Now, you have to take that c file and need to compile with TC or any other compiler (i will suggest gcc) and you gets the executable which when executed performs the task.

-Pradeep

i do get a c file,my c file is not getting compiled by TC.should i go necessarily for gcc,that means i have to install linux?i hope borland c++ compiler is same as turboc. coz i guess this parser generator software is compatible with borland c++

sahanashould i go necessarily for gcc

I would always recommend to use gcc over TC.

sahanathat means i have to install linux?

No need to install Linux, use cygwin available at <a href="https://cygwin.com/" target="_blank" rel="nofollow noopener noreferrer">Cygwin</a> or use GCW (gcc for windows) available at <a href="https://sourceforge.net/projects/gcw/" target="_blank" rel="nofollow noopener noreferrer">gcw. Gcc for Windows download | SourceForge.net</a>

-Pradeep