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/* Project:     OSLib
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 * Description: The OS Construction Kit
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 * Date:                1.6.2000
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 * Idea by:             Luca Abeni & Gerardo Lamastra
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 *
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 * OSLib is an SO project aimed at developing a common, easy-to-use
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 * low-level infrastructure for developing OS kernels and Embedded
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 * Applications; it partially derives from the HARTIK project but it
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 * currently is independently developed.
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 *
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 * OSLib is distributed under GPL License, and some of its code has
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 * been derived from the Linux kernel source; also some important
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 * ideas come from studying the DJGPP go32 extender.
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 *
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 * We acknowledge the Linux Community, Free Software Foundation,
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 * D.J. Delorie and all the other developers who believe in the
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 * freedom of software and ideas.
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 *
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 * For legalese, check out the included GPL license.
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 */
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#include <ll/ctype.h>
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#include <ll/i386/string.h>
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FILE(strbase);
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int isalnum(char c)
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{
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        return (isalpha(c) || isdigit(c));
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}
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int isalpha(char c)
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{
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    if ((c >= 'A' && c <= 'z'))
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       return(1);
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    else return(0);
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}
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int iscntrl(char c)
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{
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        if (c < '0') {
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                return 1;
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        } else {
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                return 0;
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        }
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}
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int islower(char c)
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{
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    if ((c >= 'a' && c <= 'z'))
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       return(1);
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    else return(0);
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}
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int isspace(char c)
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{
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    if ((c >= 0x09 && c <= 0x0d) || (c == 0x20)) return(1);
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    return(0);
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}
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int isupper(char c)
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{
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    if ((c >= 'A' && c <= 'Z'))
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       return(1);
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    else return(0);
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}
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char toupper(char c)
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{
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    if (c >= 'a' && c <= 'z') return(c-'a'+'A');
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    else return(c);
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}
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char tolower(char c)
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{
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    if (c >= 'A' && c <= 'Z') return(c-'A'+'a');
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    else return(c);
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}