| /* Character handling in C locale. |
| |
| Copyright 2000-2003, 2006, 2009-2012 Free Software Foundation, Inc. |
| |
| This program is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 3 of the License, or |
| (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program; if not, see <http://www.gnu.org/licenses/>. */ |
| |
| #include <config.h> |
| |
| /* Specification. */ |
| #define NO_C_CTYPE_MACROS |
| #include "c-ctype.h" |
| |
| /* The function isascii is not locale dependent. Its use in EBCDIC is |
| questionable. */ |
| bool |
| c_isascii (int c) |
| { |
| return (c >= 0x00 && c <= 0x7f); |
| } |
| |
| bool |
| c_isalnum (int c) |
| { |
| #if C_CTYPE_CONSECUTIVE_DIGITS \ |
| && C_CTYPE_CONSECUTIVE_UPPERCASE && C_CTYPE_CONSECUTIVE_LOWERCASE |
| #if C_CTYPE_ASCII |
| return ((c >= '0' && c <= '9') |
| || ((c & ~0x20) >= 'A' && (c & ~0x20) <= 'Z')); |
| #else |
| return ((c >= '0' && c <= '9') |
| || (c >= 'A' && c <= 'Z') |
| || (c >= 'a' && c <= 'z')); |
| #endif |
| #else |
| switch (c) |
| { |
| case '0': case '1': case '2': case '3': case '4': case '5': |
| case '6': case '7': case '8': case '9': |
| case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': |
| case 'G': case 'H': case 'I': case 'J': case 'K': case 'L': |
| case 'M': case 'N': case 'O': case 'P': case 'Q': case 'R': |
| case 'S': case 'T': case 'U': case 'V': case 'W': case 'X': |
| case 'Y': case 'Z': |
| case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': |
| case 'g': case 'h': case 'i': case 'j': case 'k': case 'l': |
| case 'm': case 'n': case 'o': case 'p': case 'q': case 'r': |
| case 's': case 't': case 'u': case 'v': case 'w': case 'x': |
| case 'y': case 'z': |
| return 1; |
| default: |
| return 0; |
| } |
| #endif |
| } |
| |
| bool |
| c_isalpha (int c) |
| { |
| #if C_CTYPE_CONSECUTIVE_UPPERCASE && C_CTYPE_CONSECUTIVE_LOWERCASE |
| #if C_CTYPE_ASCII |
| return ((c & ~0x20) >= 'A' && (c & ~0x20) <= 'Z'); |
| #else |
| return ((c >= 'A' && c <= 'Z') || (c >= 'a' && c <= 'z')); |
| #endif |
| #else |
| switch (c) |
| { |
| case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': |
| case 'G': case 'H': case 'I': case 'J': case 'K': case 'L': |
| case 'M': case 'N': case 'O': case 'P': case 'Q': case 'R': |
| case 'S': case 'T': case 'U': case 'V': case 'W': case 'X': |
| case 'Y': case 'Z': |
| case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': |
| case 'g': case 'h': case 'i': case 'j': case 'k': case 'l': |
| case 'm': case 'n': case 'o': case 'p': case 'q': case 'r': |
| case 's': case 't': case 'u': case 'v': case 'w': case 'x': |
| case 'y': case 'z': |
| return 1; |
| default: |
| return 0; |
| } |
| #endif |
| } |
| |
| bool |
| c_isblank (int c) |
| { |
| return (c == ' ' || c == '\t'); |
| } |
| |
| bool |
| c_iscntrl (int c) |
| { |
| #if C_CTYPE_ASCII |
| return ((c & ~0x1f) == 0 || c == 0x7f); |
| #else |
| switch (c) |
| { |
| case ' ': case '!': case '"': case '#': case '$': case '%': |
| case '&': case '\'': case '(': case ')': case '*': case '+': |
| case ',': case '-': case '.': case '/': |
| case '0': case '1': case '2': case '3': case '4': case '5': |
| case '6': case '7': case '8': case '9': |
| case ':': case ';': case '<': case '=': case '>': case '?': |
| case '@': |
| case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': |
| case 'G': case 'H': case 'I': case 'J': case 'K': case 'L': |
| case 'M': case 'N': case 'O': case 'P': case 'Q': case 'R': |
| case 'S': case 'T': case 'U': case 'V': case 'W': case 'X': |
| case 'Y': case 'Z': |
| case '[': case '\\': case ']': case '^': case '_': case '`': |
| case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': |
| case 'g': case 'h': case 'i': case 'j': case 'k': case 'l': |
| case 'm': case 'n': case 'o': case 'p': case 'q': case 'r': |
| case 's': case 't': case 'u': case 'v': case 'w': case 'x': |
| case 'y': case 'z': |
| case '{': case '|': case '}': case '~': |
| return 0; |
| default: |
| return 1; |
| } |
| #endif |
| } |
| |
| bool |
| c_isdigit (int c) |
| { |
| #if C_CTYPE_CONSECUTIVE_DIGITS |
| return (c >= '0' && c <= '9'); |
| #else |
| switch (c) |
| { |
| case '0': case '1': case '2': case '3': case '4': case '5': |
| case '6': case '7': case '8': case '9': |
| return 1; |
| default: |
| return 0; |
| } |
| #endif |
| } |
| |
| bool |
| c_islower (int c) |
| { |
| #if C_CTYPE_CONSECUTIVE_LOWERCASE |
| return (c >= 'a' && c <= 'z'); |
| #else |
| switch (c) |
| { |
| case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': |
| case 'g': case 'h': case 'i': case 'j': case 'k': case 'l': |
| case 'm': case 'n': case 'o': case 'p': case 'q': case 'r': |
| case 's': case 't': case 'u': case 'v': case 'w': case 'x': |
| case 'y': case 'z': |
| return 1; |
| default: |
| return 0; |
| } |
| #endif |
| } |
| |
| bool |
| c_isgraph (int c) |
| { |
| #if C_CTYPE_ASCII |
| return (c >= '!' && c <= '~'); |
| #else |
| switch (c) |
| { |
| case '!': case '"': case '#': case '$': case '%': case '&': |
| case '\'': case '(': case ')': case '*': case '+': case ',': |
| case '-': case '.': case '/': |
| case '0': case '1': case '2': case '3': case '4': case '5': |
| case '6': case '7': case '8': case '9': |
| case ':': case ';': case '<': case '=': case '>': case '?': |
| case '@': |
| case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': |
| case 'G': case 'H': case 'I': case 'J': case 'K': case 'L': |
| case 'M': case 'N': case 'O': case 'P': case 'Q': case 'R': |
| case 'S': case 'T': case 'U': case 'V': case 'W': case 'X': |
| case 'Y': case 'Z': |
| case '[': case '\\': case ']': case '^': case '_': case '`': |
| case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': |
| case 'g': case 'h': case 'i': case 'j': case 'k': case 'l': |
| case 'm': case 'n': case 'o': case 'p': case 'q': case 'r': |
| case 's': case 't': case 'u': case 'v': case 'w': case 'x': |
| case 'y': case 'z': |
| case '{': case '|': case '}': case '~': |
| return 1; |
| default: |
| return 0; |
| } |
| #endif |
| } |
| |
| bool |
| c_isprint (int c) |
| { |
| #if C_CTYPE_ASCII |
| return (c >= ' ' && c <= '~'); |
| #else |
| switch (c) |
| { |
| case ' ': case '!': case '"': case '#': case '$': case '%': |
| case '&': case '\'': case '(': case ')': case '*': case '+': |
| case ',': case '-': case '.': case '/': |
| case '0': case '1': case '2': case '3': case '4': case '5': |
| case '6': case '7': case '8': case '9': |
| case ':': case ';': case '<': case '=': case '>': case '?': |
| case '@': |
| case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': |
| case 'G': case 'H': case 'I': case 'J': case 'K': case 'L': |
| case 'M': case 'N': case 'O': case 'P': case 'Q': case 'R': |
| case 'S': case 'T': case 'U': case 'V': case 'W': case 'X': |
| case 'Y': case 'Z': |
| case '[': case '\\': case ']': case '^': case '_': case '`': |
| case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': |
| case 'g': case 'h': case 'i': case 'j': case 'k': case 'l': |
| case 'm': case 'n': case 'o': case 'p': case 'q': case 'r': |
| case 's': case 't': case 'u': case 'v': case 'w': case 'x': |
| case 'y': case 'z': |
| case '{': case '|': case '}': case '~': |
| return 1; |
| default: |
| return 0; |
| } |
| #endif |
| } |
| |
| bool |
| c_ispunct (int c) |
| { |
| #if C_CTYPE_ASCII |
| return ((c >= '!' && c <= '~') |
| && !((c >= '0' && c <= '9') |
| || ((c & ~0x20) >= 'A' && (c & ~0x20) <= 'Z'))); |
| #else |
| switch (c) |
| { |
| case '!': case '"': case '#': case '$': case '%': case '&': |
| case '\'': case '(': case ')': case '*': case '+': case ',': |
| case '-': case '.': case '/': |
| case ':': case ';': case '<': case '=': case '>': case '?': |
| case '@': |
| case '[': case '\\': case ']': case '^': case '_': case '`': |
| case '{': case '|': case '}': case '~': |
| return 1; |
| default: |
| return 0; |
| } |
| #endif |
| } |
| |
| bool |
| c_isspace (int c) |
| { |
| return (c == ' ' || c == '\t' |
| || c == '\n' || c == '\v' || c == '\f' || c == '\r'); |
| } |
| |
| bool |
| c_isupper (int c) |
| { |
| #if C_CTYPE_CONSECUTIVE_UPPERCASE |
| return (c >= 'A' && c <= 'Z'); |
| #else |
| switch (c) |
| { |
| case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': |
| case 'G': case 'H': case 'I': case 'J': case 'K': case 'L': |
| case 'M': case 'N': case 'O': case 'P': case 'Q': case 'R': |
| case 'S': case 'T': case 'U': case 'V': case 'W': case 'X': |
| case 'Y': case 'Z': |
| return 1; |
| default: |
| return 0; |
| } |
| #endif |
| } |
| |
| bool |
| c_isxdigit (int c) |
| { |
| #if C_CTYPE_CONSECUTIVE_DIGITS \ |
| && C_CTYPE_CONSECUTIVE_UPPERCASE && C_CTYPE_CONSECUTIVE_LOWERCASE |
| #if C_CTYPE_ASCII |
| return ((c >= '0' && c <= '9') |
| || ((c & ~0x20) >= 'A' && (c & ~0x20) <= 'F')); |
| #else |
| return ((c >= '0' && c <= '9') |
| || (c >= 'A' && c <= 'F') |
| || (c >= 'a' && c <= 'f')); |
| #endif |
| #else |
| switch (c) |
| { |
| case '0': case '1': case '2': case '3': case '4': case '5': |
| case '6': case '7': case '8': case '9': |
| case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': |
| case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': |
| return 1; |
| default: |
| return 0; |
| } |
| #endif |
| } |
| |
| int |
| c_tolower (int c) |
| { |
| #if C_CTYPE_CONSECUTIVE_UPPERCASE && C_CTYPE_CONSECUTIVE_LOWERCASE |
| return (c >= 'A' && c <= 'Z' ? c - 'A' + 'a' : c); |
| #else |
| switch (c) |
| { |
| case 'A': return 'a'; |
| case 'B': return 'b'; |
| case 'C': return 'c'; |
| case 'D': return 'd'; |
| case 'E': return 'e'; |
| case 'F': return 'f'; |
| case 'G': return 'g'; |
| case 'H': return 'h'; |
| case 'I': return 'i'; |
| case 'J': return 'j'; |
| case 'K': return 'k'; |
| case 'L': return 'l'; |
| case 'M': return 'm'; |
| case 'N': return 'n'; |
| case 'O': return 'o'; |
| case 'P': return 'p'; |
| case 'Q': return 'q'; |
| case 'R': return 'r'; |
| case 'S': return 's'; |
| case 'T': return 't'; |
| case 'U': return 'u'; |
| case 'V': return 'v'; |
| case 'W': return 'w'; |
| case 'X': return 'x'; |
| case 'Y': return 'y'; |
| case 'Z': return 'z'; |
| default: return c; |
| } |
| #endif |
| } |
| |
| int |
| c_toupper (int c) |
| { |
| #if C_CTYPE_CONSECUTIVE_UPPERCASE && C_CTYPE_CONSECUTIVE_LOWERCASE |
| return (c >= 'a' && c <= 'z' ? c - 'a' + 'A' : c); |
| #else |
| switch (c) |
| { |
| case 'a': return 'A'; |
| case 'b': return 'B'; |
| case 'c': return 'C'; |
| case 'd': return 'D'; |
| case 'e': return 'E'; |
| case 'f': return 'F'; |
| case 'g': return 'G'; |
| case 'h': return 'H'; |
| case 'i': return 'I'; |
| case 'j': return 'J'; |
| case 'k': return 'K'; |
| case 'l': return 'L'; |
| case 'm': return 'M'; |
| case 'n': return 'N'; |
| case 'o': return 'O'; |
| case 'p': return 'P'; |
| case 'q': return 'Q'; |
| case 'r': return 'R'; |
| case 's': return 'S'; |
| case 't': return 'T'; |
| case 'u': return 'U'; |
| case 'v': return 'V'; |
| case 'w': return 'W'; |
| case 'x': return 'X'; |
| case 'y': return 'Y'; |
| case 'z': return 'Z'; |
| default: return c; |
| } |
| #endif |
| } |