diff options
Diffstat (limited to 'src/cmark_ctype.c')
-rw-r--r-- | src/cmark_ctype.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/src/cmark_ctype.c b/src/cmark_ctype.c new file mode 100644 index 0000000..9ed4b5c --- /dev/null +++ b/src/cmark_ctype.c @@ -0,0 +1,33 @@ +/** + * Returns 1 if c is a "whitespace" character as defined by the spec. + */ +int isspace(char c) +{ + return (c == 0x09 || + c == 0x20 || + c == 0x0a || + c == 0x0d); +} + +/** + * Returns 1 if c is an ascii punctuation character. + */ +int ispunct(char c) +{ + return ((c >= 33 && c <= 47) || + (c >= 58 && c <= 64) || + (c >= 91 && c <= 96) || + (c >= 123 && c <= 126)); +} + +int isalnum(char c) +{ + return ((c >= 48 && c <= 57) || + (c >= 65 && c <= 90) || + (c >= 97 && c <= 122)); +} + +int isdigit(char c) +{ + return (c >= 48 && c <= 57); +} |