strip_comments.cpp

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// strip_comments.cpp
 
#ifdef _MSC_VER
#pragma warning ( disable : 4786 )
#endif//_MSC_VER
 
#include "strip_comments.h"
 
void strip_comments ( std::string& s, bool strip_lf )
{
    char* src = &s[0];
    char* dst = src;
    while ( *src )
    {
        if ( src[0] == '/' && src[1] == '/' )
        {
            src += 2;
            while ( *src && *src != '\n' )
                src++;
            if ( *src )
                src++; // skip newline
        }
        else if ( src[0] == '/' && src[1] == '*' )
        {
            src += 2;
            char* newsrc = strstr ( src, "*/" );
            if ( !newsrc )
                break;
            src = newsrc;
            //while ( *src && ( src[0] != '*' || src[1] != '/' ) )
            //  src++;
            if ( *src ) src++;
            if ( *src ) src++;
        }
        else if ( src[0] == '\r' && strip_lf )
            src++;
        else
            *dst++ = *src++;
    }
    *dst = '\0';
 
    s.resize ( dst-&s[0] );
}