kern
annotate src/klibc/ctype.c @ 97:8717eb590727
ok stopping with the filesystem to manage to write the article in time
| author | John Tsiombikas <nuclear@member.fsf.org> |
|---|---|
| date | Sat, 17 Dec 2011 14:09:17 +0200 |
| parents | |
| children |
| rev | line source |
|---|---|
| nuclear@2 | 1 #include "ctype.h" |
| nuclear@2 | 2 |
| nuclear@2 | 3 int isalnum(int c) |
| nuclear@2 | 4 { |
| nuclear@2 | 5 return isalpha(c) || isdigit(c); |
| nuclear@2 | 6 } |
| nuclear@2 | 7 |
| nuclear@2 | 8 int isalpha(int c) |
| nuclear@2 | 9 { |
| nuclear@2 | 10 return isupper(c) || islower(c); |
| nuclear@2 | 11 } |
| nuclear@2 | 12 |
| nuclear@2 | 13 int isblank(int c) |
| nuclear@2 | 14 { |
| nuclear@2 | 15 return c == ' ' || c == '\t'; |
| nuclear@2 | 16 } |
| nuclear@2 | 17 |
| nuclear@2 | 18 int isdigit(int c) |
| nuclear@2 | 19 { |
| nuclear@2 | 20 return c >= '0' && c <= '9'; |
| nuclear@2 | 21 } |
| nuclear@2 | 22 |
| nuclear@2 | 23 int isupper(int c) |
| nuclear@2 | 24 { |
| nuclear@2 | 25 return c >= 'A' && c <= 'Z'; |
| nuclear@2 | 26 } |
| nuclear@2 | 27 |
| nuclear@2 | 28 int islower(int c) |
| nuclear@2 | 29 { |
| nuclear@2 | 30 return c >= 'a' && c <= 'z'; |
| nuclear@2 | 31 } |
| nuclear@2 | 32 |
| nuclear@2 | 33 int isgraph(int c) |
| nuclear@2 | 34 { |
| nuclear@2 | 35 return c > ' ' && c <= '~'; |
| nuclear@2 | 36 } |
| nuclear@2 | 37 |
| nuclear@2 | 38 int isprint(int c) |
| nuclear@2 | 39 { |
| nuclear@2 | 40 return isgraph(c) || c == ' '; |
| nuclear@2 | 41 } |
| nuclear@2 | 42 |
| nuclear@2 | 43 int isspace(int c) |
| nuclear@2 | 44 { |
| nuclear@2 | 45 return isblank(c) || c == '\f' || c == '\n' || c == '\r' || c == '\v'; |
| nuclear@2 | 46 } |
| nuclear@2 | 47 |
| nuclear@2 | 48 int toupper(int c) |
| nuclear@2 | 49 { |
| nuclear@2 | 50 return islower(c) ? (c + ('A' - 'a')) : c; |
| nuclear@2 | 51 } |
| nuclear@2 | 52 |
| nuclear@2 | 53 int tolower(int c) |
| nuclear@2 | 54 { |
| nuclear@2 | 55 return isupper(c) ? (c + ('A' - 'a')) : c; |
| nuclear@2 | 56 } |