- #include <stdint.h>
- #include "cmark_ctype.h"
- /** 1 = space, 2 = punct, 3 = digit, 4 = alpha, 0 = other
- */
- static const int8_t cmark_ctype_class[256] = {
- /* 0 1 2 3 4 5 6 7 8 9 a b c d e f */
- /* 0 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 1, 0, 0,
- /* 1 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- /* 2 */ 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
- /* 3 */ 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2,
- /* 4 */ 2, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
- /* 5 */ 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2,
- /* 6 */ 2, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
- /* 7 */ 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 0,
- /* 8 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- /* 9 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- /* a */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- /* b */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- /* c */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- /* d */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- /* e */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- /* f */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
- };
- /**
- * Returns 1 if c is a "whitespace" character as defined by the spec.
- */
- int cmark_isspace(char c)
- {
- return cmark_ctype_class[(int8_t)c] == 1;
- }
- /**
- * Returns 1 if c is an ascii punctuation character.
- */
- int cmark_ispunct(char c)
- {
- return cmark_ctype_class[(int8_t)c] == 2;
- }
- int cmark_isalnum(char c)
- {
- int8_t result;
- result = cmark_ctype_class[(int8_t)c];
- return (result == 3 || result == 4);
- }
- int cmark_isdigit(char c)
- {
- return cmark_ctype_class[(int8_t)c] == 3;
- }
|