Convert a string to a substring of the specified rules

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I read 3 lines from a text file. Then I would convert them into several sub-string
What do I do.
Should

C++

' '

ignore it.
input:

C++

int  s ;
int f;
d  = 12  ;
c=10;

output:

C++

string a={int,s,;};
string b={int,f,;};
string c={d,=,12,;};
string f={c,=,10,;};

Posted 5-Dec-13 21:49pm

sajad abbasi

Updated 5-Dec-13 22:08pm

v2

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farhad Najib · Answer 1 · 2013-12-10T21:32:00

Solution 3

Hi It is very simple.First of all each line should seprate with Enter key.Then parse lines until Keys.Enter and add your string to line.
Yours Farhad.

Posted 10-Dec-13 21:32pm

farhad Najib

Aescleal · Answer 2 · 2013-12-05T23:15:00

If your parser doesn't have to be too general (i.e. the examples there are all the things it has to cope with) and I didn't fancy messing about with a parser generator I'd do something like:

while( lines_to_read )
    read a line
    remove the terminating semi-colon

    has the line got an '=' in it?
        yes: it's an assignment
            split line into two at the '=' character
        no: it's a declaration
            split line into two at the first white space character

    trim whitespace from each substring
    form output string

CPallini · Answer 3 · 2013-12-05T22:17:00

Solution 1

You have to write a (very simple) lexer. Google is your friend[^].

Posted 5-Dec-13 22:17pm

CPallini