| /* |
| * Copyright (c) 2008 Travis Geiselbrecht |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining |
| * a copy of this software and associated documentation files |
| * (the "Software"), to deal in the Software without restriction, |
| * including without limitation the rights to use, copy, modify, merge, |
| * publish, distribute, sublicense, and/or sell copies of the Software, |
| * and to permit persons to whom the Software is furnished to do so, |
| * subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be |
| * included in all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
| * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY |
| * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
| * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
| * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| */ |
| #include <ctype.h> |
| |
| #if 0 |
| /* XXX unimplemented for now */ |
| int iscntrl(int c); |
| int isgraph(int c); |
| int isprint(int c); |
| int ispunct(int c); |
| #endif |
| |
| int isblank(int c) |
| { |
| return (c == ' ' || c == '\t'); |
| } |
| |
| int isspace(int c) |
| { |
| return (c == ' ' || c == '\f' || c == '\n' || c == '\r' || c == '\t' || c == '\v'); |
| } |
| |
| int islower(int c) |
| { |
| return ((c >= 'a') && (c <= 'z')); |
| } |
| |
| int isupper(int c) |
| { |
| return ((c >= 'A') && (c <= 'Z')); |
| } |
| |
| int isdigit(int c) |
| { |
| return ((c >= '0') && (c <= '9')); |
| } |
| |
| int isalpha(int c) |
| { |
| return isupper(c) || islower(c); |
| } |
| |
| int isalnum(int c) |
| { |
| return isalpha(c) || isdigit(c); |
| } |
| |
| int isxdigit(int c) |
| { |
| return isdigit(c) || ((c >= 'a') && (c <= 'f')) || ((c >= 'A') && (c <= 'F')); |
| } |
| |
| int tolower(int c) |
| { |
| if ((c >= 'A') && (c <= 'Z')) |
| return c + ('a' - 'A'); |
| return c; |
| } |
| |
| int toupper(int c) |
| { |
| if ((c >= 'a') && (c <= 'z')) |
| return c + ('A' - 'a'); |
| return c; |
| } |
| |