Code 39code Function

/**/
/*---------------------------------------------------------------------*/
/**/
/* Function: code39-applies to morovia code39 fontware */
/**/
/* Code39 (text) converts the input text into a code 39 barcode string. */
/**/
/* Function throws off characters not in the code 39 Character Set ,*/
/**/
/* And adds start/stop characters .*/
/**/
/*----------------------------------------------------------------------*/
Public String code39 (string szinpara)
{
Int I, NPOs;
String szbuffer = "";
String szcharset = "0123456789. +-/$ % abcdefghijklmnopqrstuvwxyz ";
I = 0;
While (I <szinpara. length)
{
NPOs = szcharset. indexof (szinpara [I]);
If (szinpara [I] = '')
Szbuffer + = "= ";
Else if (NPOs> = 0)
Szbuffer + = szinpara [I];
I = I + 1;
}
Return "*" + szbuffer + "*";

}
/**/
/* -------------------------- Code39mod43 ---------------------------------------*/
/**/
/* Converts the input text into a code39 extended symbol. This function */
/**/
/* Shocould be used to format morovia code39 font, not code39 full ASCII font .*/
/**/
/* The text can be any combinations of ASCII characters. Note that the symbol */
/**/
/* Generated is an extended code39, and the specified must be put in code39 */
/**/
/* Extended mode to read the symbol properly .*/
/**/
/*----------------------------------------------------------------------------*/
Public String code39mod43 (string szinpara)
{
Int I = 0, NPOs, nchecksum = 0;
String inpara = "";
String szbuffer = "";
String szswap = "";
String szcharset = "0123456789abcdefghijklmnopqrstuvwxyz-. $/+ % ";
String szmappingset = "0123456789abcdefghijklmnopqrstuvwxyz-. =$/+ % ";
I = 0;
Inpara = szinpara;
While (I <inpara. length)
{
NPOs = szcharset. indexof (inpara [I]);
If (NPOs> = 0)
{
Szbuffer + = szmappingset [NPOs];
Nchecksum = nchecksum + NPOs;
}
I = I + 1;
}
Nchecksum = nchecksum % 43;
Szswap = '*' + szbuffer + szmappingset [nchecksum] + '*';
Return szswap;
}
/**/
/* -------------------------------- Code39ascii ----------------------------------------------*/
/**/
/* Converts the input text into a code39 extended symbol. This function shocould be */
/**/
/* Used to format morovia code39 font, not code39 full ASCII font. The text can be */
/**/
/* Any combinations of ASCII characters. Note that the symbol generated is an extended */
/**/
/* Code39, and the specified must be put in code39 extended mode to read the symbol properly .*/
/**/
/* Optional /*-----------------------------------------------------------------------------------------*/
Public String code39ascii (string szinpara)
{
Int I = 0, NPOs;
String szbuffer = "";
String szspecial = "";
String szwap = "";
Szspecial = specialchar (szinpara );
Szinpara = szspecial;
String szcharset = "0123456789abcdefghijklmnopqrstuvwxyz-." + (char) 240;
String szmappingset = "0123456789abcdefghijklmnopqrstuvwxyz-. =" + (char) 240;
While (I <szinpara. length)
{
NPOs = szcharset. indexof (szinpara [I]);
If (NPOs> = 0)
Szbuffer + = szmappingset [NPOs];
Else if (szinpara [I] = 0)
Szbuffer + = "% u ";
Else if (szinpara [I] = '') // control characters
Szbuffer + = ';
Else if (szinpara [I] = '/')
Szbuffer + = "/o ";
Else if (szinpara [I] = ':')
Szbuffer + = "/z ";
Else if (szinpara [I] = 64)
Szbuffer + = "% v ";
Else if (szinpara [I] = 96)
Szbuffer + = "% W ";
Else if (szinpara [I]> 0 & szinpara [I] <= 26)
{
Szbuffer + = '$ ';
Szbuffer + = (char) (szinpara [I] + 'a'-1 );
}
Else if (szinpara [I]> 32 & szinpara [I] <= 46)
{
Szbuffer + = '/';
Szbuffer + = (char) (szinpara [I] % 32) + 'a'-1 );
}
Else if (szinpara [I]> = 97 & szinpara [I] <= 122)
{
Szbuffer + = '+ ';
Szbuffer + = (char) (szinpara [I] % 32) + 'a'-1 );
}
Else if (szinpara [I]> = 27 & szinpara [I] <= 31)
{
Szbuffer + = '% ';
Szbuffer + = (char) (szinpara [I]-27 + 'A ');
}
Else if (szinpara [I]> = 59 & szinpara [I] <= 63)
{
Szbuffer + = '% ';
Szbuffer + = (char) (szinpara [I]-59 + 'F ');
}
Else if (szinpara [I]> = 91 & szinpara [I] <= 95)
{
Szbuffer + = '% ';
Szbuffer + = (char) (szinpara [I]-91 + 'k ');
}
Else if (szinpara [I]> = 123 & szinpara [I] <= 127)
{
Szbuffer + = '% ';
Szbuffer + = (char) (szinpara [I]-123 + 'P ');
}
I = I + 1;
}

// Replace null char
I = 0;
While (I <szbuffer. length)
{
If (szbuffer [I] = 240)
Szwap + = "% u ";
Else
Szwap + = szbuffer [I];
I ++;
}

Return '[' + szwap + ']';
}
/**/
/* ----------------------------------- Code39extended ------------------------------------*/
/**/
/* Converts the input text into a code39 extended symbol. It accepts any ASCII */
/**/
/* Characters as input. The only difference from function code39ascii is the former */
/**/
/* Is designed to work with morovia code39 (full ASCII) font and the latter is designed */
/**/
/* To work with morovia code39 font .*/
/**/
/* Optional /*-----------------------------------------------------------------------------------*/
Public String code39extended (string szinpara)
{
Int I = 0; char ch;
String szswap = "";
String szspecial = "";
String szoutput = "";
Szspecial = specialchar (szinpara );
Szswap = szspecial;

For (I = 0; I <szswap. length; I ++)
{
Ch = szswap [I];
If (CH = 240)
Szoutput + = (char) 0xc0;
Else if (CH> 0 & Ch <= 0x1f)
Szoutput + = (char) (0xc0 + CH );
Else if (CH = '') // space is mapped to equal sign
Szoutput + = ';
Else if (CH = '*')
Szoutput + = (char) 0xf4;
Else if (CH = ')
Szoutput + = (char) 0xf0;
Else if (CH = '[')
Szoutput + = (char) 0xf1;
Else if (CH = ']')
Szoutput + = (char) 0xf2;
Else if (CH = 0x7f)
Szoutput + = (char) 0xe0;
Else
Szoutput + = CH;
}

Szoutput = '[' + szoutput + ']';
Return szoutput;
}