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Readhtml.cpp

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// Readhtml.cpp
/*
Copyright (C) 2003  Anders Hedstrom

This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
*/

#ifdef _WIN32
#pragma warning(disable:4786)
#endif
#include <stdio.h>
#include <string.h>

#include "Readhtml.h"

#define DEB(x) 

namespace Cgi {

Readhtml::Readhtml(void)
{
        fn = NULL;
        fil = NULL;
        peekc = 0;
        buf = NULL;
}

Readhtml::Readhtml(char *s)
{
        Readhtml();
        fn = new char[strlen(s) + 1];
        strcpy(fn,s);
        if ((fil = fopen(s,"rt")) != NULL)
                fread(&peekc,1,1,fil);
        buf = new char[MAXL];
}

Readhtml::~Readhtml(void)
{
        if (fil)
                fclose(fil);
        if (fn)
                delete fn;
        if (buf)
                delete buf;
}

int Readhtml::getnext(char *s,int bufl)
{
        size_t i = 0;
        size_t sv = 0;

        if (!fil)
                return -1;
        if (feof(fil))
                return 0;

        if (!peekc)
                do
                {
                        fread(&peekc,1,1,fil);
                } while (!feof(fil) && (peekc == 13 || peekc == 10));

// read HTML tag

        if (peekc == '<')
        {
                if (i < MAXL - 1)
                        buf[i++] = peekc;
                fread(&peekc,1,1,fil);
                while (!feof(fil) && peekc != '>')
                {
                        if (peekc == 13 || peekc == 10 || peekc == 9)
                                peekc = 32;
                        if (i < MAXL - 1)
                                buf[i++] = peekc;
                        fread(&peekc,1,1,fil);
                }
                if (i < MAXL - 1)
                        buf[i++] = '>';
                buf[i] = 0;
                buf[bufl - 1] = 0;
                peekc = 0;
                while (buf[strlen(buf) - 1] == 32)
                        buf[strlen(buf) - 1] = 0;
                strcpy(s,buf);
                // check comment
                if (!strncmp(buf, "<!--", 4))
                {
                        while (!strstr(buf, "-->") && !feof(fil))
                        {
                                i = 0;
                                fread(&peekc,1,1,fil);
                                while (!feof(fil) && peekc != '>')
                                {
                                        if (peekc == 13 || peekc == 10 || peekc == 9)
                                                peekc = 32;
                                        if (i < MAXL - 1)
                                                buf[i++] = peekc;
                                        fread(&peekc,1,1,fil);
                                }
                                if (i < MAXL - 1)
                                        buf[i++] = '>';
                                buf[i] = 0;
                                buf[bufl - 1] = 0;
                                peekc = 0;
                                while (buf[strlen(buf) - 1] == 32)
                                        buf[strlen(buf) - 1] = 0;
                                strcat(s + strlen(s),buf);
                        }
                        return 3; // comment
                }
                return 1;
        }

// read string
//  0xc4-Auml, 0xc5-Aring, 0xd6-Ouml
//  0xe4-auml, 0xe5-aring, 0xf6-ouml

        if (peekc == 13 || peekc == 10 || peekc == 9)
                peekc = 32;
        if (peekc && peekc != 32)
                if (i < MAXL - 1)
                        buf[i++] = peekc;
        do
        {
                fread(&peekc,1,1,fil);
                if (peekc == 13 || peekc == 10 || peekc == 9)
                        peekc = 32;
        } while (peekc == 32 && !feof(fil));
        while (!feof(fil) && peekc != '<')
        {
                if (peekc == 13 || peekc == 10 || peekc == 9)
                        peekc = 32;
                if (i < MAXL - 1)
                        buf[i++] = peekc;
                fread(&peekc,1,1,fil);
// debug udde tecken
                if (peekc < 0)
                {
                        buf[i] = 0;
                        DEB(printf("%s 0x%02x\n",buf,(unsigned)peekc % 256);)
                        sv++;
                }
        }
        buf[i] = 0;
        buf[bufl - 1] = 0;
        {
                char *s = strstr(buf, "&nbsp;");
                while (s)
                {
                        *s = ' ';
                        memcpy(s + 1, s + 6, strlen(s + 6) + 1);
                        //
                        s = strstr(buf, "&nbsp;");
                }
        }
        while (buf[strlen(buf) - 1] == 32)
                buf[strlen(buf) - 1] = 0;
        strcpy(s,buf);
        DEB(if (sv)
                printf("%s\n",buf);)
        if (!*s && !feof(fil))
                return getnext(s, bufl);
        return 2;
}

Readhtml::Readhtml(const Readhtml& ) 
{
}

Readhtml& Readhtml::operator=(const Readhtml& ) 
{ 
        return *this; 
}

} // namespace

---

Page, code, and content Copyright (C) 2004 by Anders Hedström