Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!think.com!mintaka!bloom-beacon!eru!hagbard!sunic!mcsun!hp4nl!targon!andre
From: andre@targon.UUCP (andre)
Newsgroups: comp.lang.c
Subject: Re: Unixworld competition - SOLUTIONS
Message-ID: <1692@targon.UUCP>
Date: 17 Apr 91 11:08:10 GMT
References: <1991Apr2.012639.25454@cbnewsh.att.com>
Organization: Siemens Nixdorf Informationsystems BV.,SWZ, Vianen, the Netherlands.
Lines: 46

In article <1991Apr2.012639.25454@cbnewsh.att.com> gls@corona.ATT.COM (Col. G. L. Sicherman) writes:
>As I promised, here are the bugs in the prize-winning comment-
 [ removed other two programs ]

Now the lex program:

>%}
><STRING>([^\\]\")|(\\\\\")	|
><CHAR>([^.\\]\')|(\\\\\')	|
><CPLUS>\n	{ ECHO; BEGIN CODE; }
><CCOM>"*/"	{ two_space(); BEGIN CODE; }
><CCOM,CPLUS>.	{ output(*yytext=='\t'?'\t':' ');} 
><CODE>"/*"	{ two_space(); BEGIN CCOM ; }
><CODE>"//"	{ two_space(); BEGIN CPLUS ;}
><CODE>\"	{ ECHO; BEGIN STRING; }
><CODE>\'	{ ECHO; BEGIN CHAR; }
><STRING,CODE>.	{ ECHO; }
>%%
>
>This one doesn't handle multiple backslashes, though lex has the power
>to do so easily.  A program like this will break it:
>
>	main()
>	{
>	    char *str = "This string has everything \\\" /* and more!\n";
>
>	    printf(str);
>	}

Oke oke you win, I made a mistake (blush) how about with the following ?
This should fix it no?

Just change the first three lines of the lex part to:

<STRING,TEXT,CHAR>\\.	{ ECHO; }
<STRING>\"	|
<CHAR>\'	|
<CPLUS>\n      { ECHO; BEGIN CODE; }

	happy lexing...

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