LinuxQuestions.org - regarding a lex sample program...

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- - regarding a lex sample program... (https://www.linuxquestions.org/questions/linux-software-2/regarding-a-lex-sample-program-442658/)

regarding a lex sample program...

Hi,
I have the following program,

%%
[^ab]+ { printf("string is %s\n",yytext); }
. { ECHO ; printf("\n");}
%%
int main()
{
yylex();
return(0);
}

when i run it, and give the following input

111a222a333a444

i get the following output,

string is 111
a
string is 222
a
string is 333
a

and thats it... i don't understand why the last string of 444 is not prited, can anyone help me on this...

Thanks And Regards,
Vaairavan.S

Quote:

i get the following output,

string is 111
a
string is 222
a
string is 333
a

Which version / platform do you use ? I use flex 2.5.31, and I just ran your program without a hitch.

Code:

[me@lfs6 ~/lex_test]$ echo 111a222a333a444 | ./flex_test

1

1

1

string is a

2

2

2

string is a

3

3

3

string is a

4

4

4

Have you tried adding a white space after 444 and see what happens ? Maybe you can bring the issue to the maintainers of this particular program with such comparative results.

Cheers.
---
narc

no actually, ctrl+d is missing at the end of the string... thats why dude...