82 lines
1.2 KiB
C
82 lines
1.2 KiB
C
//
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// Created by rick on 25-03-21.
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//
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#include <ctype.h>
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int tolower(int c) {
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if (c > 0xFF) {
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// uh own
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return c;
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}
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if (c >= 'A' && c <= 'Z') {
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return c - 'A' + 'a';
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}
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return c;
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}
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int toupper(int c) {
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if (c > 0xFF) {
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// uh own
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return c;
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}
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if (c >= 'a' && c <= 'z') {
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return c - 'a' + 'A';
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}
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return c;
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}
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int isascii(int c) {
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return c <= 0x7F;
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}
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int isblank(int c) {
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return c == ' ' || c == '\t';
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}
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int iscntrl(int c) {
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return c <= 0x1F || c == 0x7F;
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}
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int isdigit(int c) {
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return c >= '0' && c <= '9';
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}
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int isgraph(int c) {
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return c > ' ' && c < 0x7F;
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}
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int islower(int c) {
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return c >= 'a' && c <= 'z';
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}
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int isprint(int c) {
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return c >= ' ' && c < 0x7F;
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}
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int ispunct(int c) {
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return (c > ' ' && c <= '@')
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|| (c >= '[' && c <= '`')
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|| (c >= '{' && c <= '~');
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}
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int isspace(int c) {
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return c == ' ' || (c >= '\t' && c <= '\r');
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}
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int isupper(int c) {
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return c >= 'A' && c <= 'Z';
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}
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int isxdigit(int c) {
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return isdigit(c) || (c >= 'a' && c <= 'f') || (c >= 'A' && c <= 'F');
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}
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int isalpha(int c) {
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return isupper(c) | islower(c);
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}
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int isalnum(int c) {
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return isalpha(c) || isdigit(c);
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}
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