/*:*
 *: File: ./src/s_tool.cpp
 *: 
 *: yChat; Homepage: www.yChat.org; Version 0.5.6-BASIC
 *: 
 *: Copyright (C) 2003, 2004 Paul C. Buetow, Volker Richter
 *: Copyright (C) 2005 EXA Digital Solutions GbR
 *: 
 *: 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.
 *:*/

#ifndef s_tool_CXX
#define s_tool_CXX

#include <ctype.h>
#include <time.h>
#include "s_tool.h"

bool
s_tool::is_alpha_numeric( string &s_digit )
{
    auto const char *digit = s_digit.c_str();
    auto int   i_len = strlen( digit );

    for( int i=0; i<i_len; i++ )
    {
        if ( ! isalnum( *digit ) )
            return false;
        digit++;
    }

    return true;
}
string
s_tool::trim( string s_str )
{
    if(s_str.empty())
        return "";
    char c_cur=s_str[0];
    auto int pos=0;
    // left trim
    while(c_cur==' ' || c_cur == '\n' || c_cur == '\r')
    {
        s_str.erase(pos,1);

        c_cur=s_str[++pos];

    }
    // right trim

    pos=s_str.size();
    c_cur=s_str[s_str.size()];

    while(c_cur==' ' || c_cur == '\n' || c_cur == '\0' || c_cur == '\r')
    {
        s_str.erase(pos,1);
        c_cur=s_str[--pos];

    }
    return s_str;
}

string
s_tool::getExtension( string s_file )
{
    int pos = s_file.find_last_of(".");
    if(pos != string::npos)
    {
        string s_ext=s_file.substr(pos+1, s_file.size()-(pos+1));
        for(int i = 0;i<s_ext.size();i++)
            s_ext[i]=toupper(s_ext[i]);
        return s_ext;
    }
    return "";
}

string
s_tool::int2string( int i_num )
{
    char buf[64];
    sprintf(buf, "%d", i_num);
    return buf;
}

int
s_tool::string2int( string s_digit )
{
    auto const char *digit = s_digit.c_str();
    int result = 0;

    // Convert each digit char and add into result.
    while (*digit >= '0' && *digit <='9')
    {
        result = (result * 10) + (*digit - '0');
        digit++;
    }

    // Check that there were no non-digits at end.
    if (*digit != 0)
    {
        return -1;
    }

    return result;
}

long
s_tool::unixtime()
{
    return (long) time( NULL );
}


void
s_tool::strip_html( string *s_str )
{
    auto int i_pos;

    if((i_pos=s_str->find("<",0))==string::npos)
        return;
    while(true)
    {

        s_str->replace(i_pos,1,"&lt;");

        if((i_pos=s_str->find("<",0))==string::npos)
            return;

    }
}

string
s_tool::replace( string s_string, string s_search, string s_replace )
{
    unsigned i_pos[2];

    for ( i_pos[0]  = s_string.find( s_search );
            i_pos[0] != string::npos;
            i_pos[0]  = s_string.find( s_search, i_pos[1] ) )
    {
        s_string.replace( i_pos[0], s_search.length(), s_replace );
        i_pos[1] = i_pos[0] + s_replace.length();
    }

    return s_string;
}



#endif