74 lines
1.3 KiB
C
74 lines
1.3 KiB
C
//---
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// Character type functions.
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// Normally this functions need not be linked because there are macros to
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// optimize performance, but we still need them to get some pointers.
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//---
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// We don't want to include <ctype.h> because it defines all the macros...
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#include <stdint.h>
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extern uint8_t ctype_classes[0x80];
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#define _inline __attribute__((always_inline)) inline
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_inline int isalnum(int c) {
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return ctype_classes[c] & 0xf0;
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}
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_inline int isalpha(int c) {
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return ctype_classes[c] & 0x30;
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}
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_inline int iscntrl(int c) {
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return ctype_classes[c] & 0x01;
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}
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_inline int isdigit(int c) {
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return ctype_classes[c] & 0x40;
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}
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_inline int isgraph(int c) {
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return ctype_classes[c] & 0xf4;
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}
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_inline int islower(int c) {
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return ctype_classes[c] & 0x10;
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}
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_inline int isprint(int c) {
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return ctype_classes[c] & 0x08;
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}
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_inline int ispunct(int c) {
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return ctype_classes[c] & 0x04;
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}
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_inline int isspace(int c) {
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return ctype_classes[c] & 0x02;
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}
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_inline int isupper(int c) {
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return ctype_classes[c] & 0x20;
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}
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_inline int isxdigit(int c) {
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return ctype_classes[c] & 0x80;
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}
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_inline int isascii(int c) {
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return ((unsigned)c <= 0x7f);
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}
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_inline int isblank(int c) {
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return (c == '\t' || c == ' ');
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}
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_inline int tolower(int c) {
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return c | isupper(c);
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}
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_inline int toupper(int c) {
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return c & ~(islower(c) << 1);
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}
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#undef _inline
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