mirror of
https://github.com/rn10950/RetroZilla.git
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347 lines
11 KiB
C
347 lines
11 KiB
C
/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is lineterm.
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*
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* The Initial Developer of the Original Code is
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* Ramalingam Saravanan.
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* Portions created by the Initial Developer are Copyright (C) 1999
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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/* unistring.h: Unicode string operations header
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* (used by lineterm.h)
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* CPP options:
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* USE_WCHAR: use system wchar implementation, rather than unsigned short
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* HAVE_WCSSTR: use wcsstr rather than wcswcs (used for wchar only)
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*/
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#ifndef _UNISTRING_H
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#define _UNISTRING_H 1
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* Standard C header files */
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#include <stdio.h>
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/* Unicode character type:
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* Use either the wchar_t implementation or unsigned short
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*/
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#ifdef USE_WCHAR
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#include <wchar.h>
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typedef wchar_t UNICHAR;
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#else /* !USE_WCHAR */
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typedef unsigned short UNICHAR;
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#endif
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/* Unicode string functions:
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* use the wchar_t implementation for moment
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*/
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/** Encodes Unicode string US with NUS characters into UTF8 string S with
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* upto NS characters, returning the number of REMAINING Unicode characters
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* and the number of ENCODED Utf8 characters
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*/
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void ucstoutf8(const UNICHAR* us, int nus, char* s, int ns,
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int* remaining, int* encoded);
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/** Decodes UTF8 string S with NS characters to Unicode string US with
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* upto NUS characters, returning the number of REMAINING Utf8 characters
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* and the number of DECODED Unicode characters.
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* If skipNUL is non-zero, NUL input characters are skipped.
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* returns 0 if successful,
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* -1 if an error occurred during decoding
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*/
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int utf8toucs(const char* s, int ns, UNICHAR* us, int nus,
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int skipNUL, int* remaining, int* decoded);
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/** Prints Unicode string US with NUS characters to file stream STREAM,
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* escaping non-printable ASCII characters and all non-ASCII characters
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*/
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void ucsprint(FILE* stream, const UNICHAR* us, int nus);
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/** Copy exactly n characters from plain character source string to UNICHAR
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* destination string, ignoring source characters past a null character and
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* padding the destination with null characters if necessary.
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*/
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UNICHAR* ucscopy(UNICHAR* dest, const char* srcplain, size_t n);
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#ifdef USE_WCHAR
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#define ucscpy wcscpy
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#define ucsncpy wcsncpy
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#define ucscat wcscat
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#define ucsncat wcsncat
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#define ucscmp wcscmp
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#define ucsncmp wcsncmp
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#define ucschr wcschr
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#define ucsrchr wcsrchr
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#define ucsspn wcsspn
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#define ucscspn wcscspn
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#define ucspbrk wcspbrk
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#ifdef HAVE_WCSSTR
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#define ucsstr wcsstr
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#else
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#define ucsstr wcswcs
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#endif
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#define ucslen wcslen
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#define ucstok wcstok
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#else /* !USE_WCHAR */
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/** Locates first occurrence of character within string and returns pointer
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* to it if found, else returning null pointer. (character may be NUL)
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*/
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UNICHAR* ucschr(const UNICHAR* str, const UNICHAR chr);
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/** Locates last occurrence of character within string and returns pointer
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* to it if found, else returning null pointer. (character may be NUL)
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*/
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UNICHAR* ucsrchr(const UNICHAR* str, const UNICHAR chr);
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/** Compare all characters between string1 and string2, returning
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* a zero value if all characters are equal, or returning
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* character1 - character2 for the first character that is different
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* between the two strings.
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* (Characters following a null character are not compared.)
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*/
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int ucscmp(register const UNICHAR* str1, register const UNICHAR* str2);
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/** Compare upto n characters between string1 and string2, returning
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* a zero value if all compared characters are equal, or returning
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* character1 - character2 for the first character that is different
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* between the two strings.
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* (Characters following a null character are not compared.)
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*/
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int ucsncmp(const UNICHAR* str1, const UNICHAR* str2,
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size_t n);
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/** Copy exactly n characters from source to destination, ignoring source
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* characters past a null character and padding the destination with null
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* characters if necessary.
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*/
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UNICHAR* ucsncpy(UNICHAR* dest, const UNICHAR* src,
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size_t n);
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/** Returns string length
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*/
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size_t ucslen(const UNICHAR* str);
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/** Locates substring within string and returns pointer to it if found,
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* else returning null pointer. If substring has zero length, then full
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* string is returned.
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*/
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UNICHAR* ucsstr(const UNICHAR* str, const UNICHAR* substr);
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/** Returns length of longest initial segment of string that contains
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* only the specified characters.
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*/
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size_t ucsspn(const UNICHAR* str, const UNICHAR* chars);
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/** Returns length of longest initial segment of string that does not
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* contain any of the specified characters.
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*/
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size_t ucscspn(const UNICHAR* str, const UNICHAR* chars);
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#endif /* !USE_WCHAR */
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/* unsigned short constants */
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#define U_NUL 0x00U
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#define U_CTL_A 0x01U
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#define U_CTL_B 0x02U
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#define U_CTL_C 0x03U
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#define U_CTL_D 0x04U
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#define U_CTL_E 0x05U
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#define U_CTL_F 0x06U
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#define U_BEL 0x07U /* ^G */
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#define U_BACKSPACE 0x08U /* ^H */
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#define U_TAB 0x09U /* ^I */
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#define U_LINEFEED 0x0AU /* ^J */
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#define U_CTL_K 0x0BU
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#define U_CTL_L 0x0CU
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#define U_CRETURN 0x0DU /* ^M */
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#define U_CTL_N 0x0EU
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#define U_CTL_O 0x0FU
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#define U_CTL_P 0x10U
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#define U_CTL_Q 0x11U
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#define U_CTL_R 0x12U
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#define U_CTL_S 0x13U
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#define U_CTL_T 0x14U
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#define U_CTL_U 0x15U
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#define U_CTL_V 0x16U
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#define U_CTL_W 0x17U
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#define U_CTL_X 0x18U
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#define U_CTL_Y 0x19U
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#define U_CTL_Z 0x1AU
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#define U_ESCAPE 0x1BU /* escape */
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#define U_SPACE 0x20U /* space */
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#define U_EXCLAMATION 0x21U /* ! */
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#define U_DBLQUOTE 0x22U /* " */
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#define U_NUMBER 0x23U /* # */
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#define U_DOLLAR 0x24U /* $ */
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#define U_PERCENT 0x25U /* % */
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#define U_AMPERSAND 0x26U /* & */
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#define U_SNGLQUOTE 0x27U /* ' */
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#define U_LPAREN 0x28U /* ( */
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#define U_RPAREN 0x29U /* ) */
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#define U_STAR 0x2AU /* * */
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#define U_PLUS 0x2BU /* + */
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#define U_COMMA 0x2CU /* , */
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#define U_DASH 0x2DU /* - */
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#define U_PERIOD 0x2EU /* . */
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#define U_SLASH 0x2FU /* / */
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#define U_ZERO 0x30U /* 0 */
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#define U_ONE 0x31U /* 1 */
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#define U_TWO 0x32U /* 2 */
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#define U_THREE 0x33U /* 3 */
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#define U_FOUR 0x34U /* 4 */
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#define U_FIVE 0x35U /* 5 */
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#define U_SIX 0x36U /* 6 */
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#define U_SEVEN 0x37U /* 7 */
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#define U_EIGHT 0x38U /* 8 */
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#define U_NINE 0x39U /* 9 */
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#define U_COLON 0x3AU /* : */
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#define U_SEMICOLON 0x3BU /* ; */
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#define U_LESSTHAN 0x3CU /* < */
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#define U_EQUALS 0x3DU /* = */
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#define U_GREATERTHAN 0x3EU /* > */
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#define U_QUERYMARK 0x3FU /* ? */
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#define U_ATSIGN 0x40U /* @ */
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#define U_A_CHAR 0x41U /* A */
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#define U_B_CHAR 0x42U /* B */
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#define U_C_CHAR 0x43U /* C */
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#define U_D_CHAR 0x44U /* D */
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#define U_E_CHAR 0x45U /* E */
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#define U_F_CHAR 0x46U /* F */
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#define U_G_CHAR 0x47U /* G */
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#define U_H_CHAR 0x48U /* H */
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#define U_I_CHAR 0x49U /* I */
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#define U_J_CHAR 0x4AU /* J */
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#define U_K_CHAR 0x4BU /* K */
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#define U_L_CHAR 0x4CU /* L */
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#define U_M_CHAR 0x4DU /* M */
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#define U_N_CHAR 0x4EU /* N */
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#define U_O_CHAR 0x4FU /* O */
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#define U_P_CHAR 0x50U /* P */
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#define U_Q_CHAR 0x51U /* Q */
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#define U_R_CHAR 0x52U /* R */
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#define U_S_CHAR 0x53U /* S */
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#define U_T_CHAR 0x54U /* T */
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#define U_U_CHAR 0x55U /* U */
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#define U_V_CHAR 0x56U /* V */
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#define U_W_CHAR 0x57U /* W */
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#define U_X_CHAR 0x58U /* X */
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#define U_Y_CHAR 0x59U /* Y */
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#define U_Z_CHAR 0x5AU /* Z */
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#define U_LBRACKET 0x5BU /* [ */
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#define U_BACKSLASH 0x5CU /* \ */
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#define U_RBRACKET 0x5DU /* ] */
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#define U_CARET 0x5EU /* ^ */
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#define U_UNDERSCORE 0x5FU /* _ */
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#define U_BACKQUOTE 0x60U /* ` */
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#define U_a_CHAR 0x61U /* a */
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#define U_b_CHAR 0x62U /* b */
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#define U_c_CHAR 0x63U /* c */
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#define U_d_CHAR 0x64U /* d */
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#define U_e_CHAR 0x65U /* e */
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#define U_f_CHAR 0x66U /* f */
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#define U_g_CHAR 0x67U /* g */
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#define U_h_CHAR 0x68U /* h */
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#define U_i_CHAR 0x69U /* i */
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#define U_j_CHAR 0x6AU /* j */
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#define U_k_CHAR 0x6BU /* k */
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#define U_l_CHAR 0x6CU /* l */
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#define U_m_CHAR 0x6DU /* m */
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#define U_n_CHAR 0x6EU /* n */
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#define U_o_CHAR 0x6FU /* o */
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#define U_p_CHAR 0x70U /* p */
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#define U_q_CHAR 0x71U /* q */
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#define U_r_CHAR 0x72U /* r */
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#define U_s_CHAR 0x73U /* s */
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#define U_t_CHAR 0x74U /* t */
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#define U_u_CHAR 0x75U /* u */
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#define U_v_CHAR 0x76U /* v */
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#define U_w_CHAR 0x77U /* w */
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#define U_x_CHAR 0x78U /* x */
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#define U_y_CHAR 0x79U /* y */
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#define U_z_CHAR 0x7AU /* z */
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#define U_LCURLY 0x7BU /* { */
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#define U_VERTBAR 0x7CU /* | */
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#define U_RCURLY 0x7DU /* } */
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#define U_TILDE 0x7EU /* ~ */
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#define U_DEL 0x7FU /* delete */
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#define U_LATIN1LO 0xA0U /* lowest Latin1 extension character */
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#define U_NOBRKSPACE 0xA0U /* no-break space */
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#define U_LATIN1HI 0xFFU /* highest Latin1 extension character */
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#define U_PRIVATE0 0xE000U /* first private use Unicode character */
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#define IS_ASCII_LETTER(x) ( (((x) >= (UNICHAR)U_A_CHAR) && \
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((x) <= (UNICHAR)U_Z_CHAR)) || \
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(((x) >= (UNICHAR)U_a_CHAR) && \
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((x) <= (UNICHAR)U_z_CHAR)) )
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#define IS_ASCII_DIGIT(x) ( ((x) >= (UNICHAR)U_ZERO) && \
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((x) <= (UNICHAR)U_NINE) )
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#ifdef __cplusplus
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}
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#endif
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#endif /* _UNISTRING_H */
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