mirror of
https://github.com/FirebirdSQL/firebird.git
synced 2025-01-31 06:43:02 +01:00
516 lines
12 KiB
C++
516 lines
12 KiB
C++
/*
|
|
* PROGRAM: InterBase International support
|
|
* MODULE: lc_ascii.cpp
|
|
* DESCRIPTION: Language Drivers in the binary collation family.
|
|
*
|
|
* The contents of this file are subject to the Interbase Public
|
|
* License Version 1.0 (the "License"); you may not use this file
|
|
* except in compliance with the License. You may obtain a copy
|
|
* of the License at http://www.Inprise.com/IPL.html
|
|
*
|
|
* Software distributed under the License is distributed on an
|
|
* "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express
|
|
* or implied. See the License for the specific language governing
|
|
* rights and limitations under the License.
|
|
*
|
|
* The Original Code was created by Inprise Corporation
|
|
* and its predecessors. Portions created by Inprise Corporation are
|
|
* Copyright (C) Inprise Corporation.
|
|
*
|
|
* All Rights Reserved.
|
|
* Contributor(s): ______________________________________.
|
|
*/
|
|
|
|
#include "firebird.h"
|
|
#include "../intl/ldcommon.h"
|
|
#include "ld_proto.h"
|
|
#include "lc_ascii.h"
|
|
|
|
static inline bool FAMILY_ASCII(TEXTTYPE cache,
|
|
SSHORT country,
|
|
const ASCII* POSIX,
|
|
USHORT attributes,
|
|
const UCHAR* specific_attributes,
|
|
ULONG specific_attributes_length)
|
|
{
|
|
if ((attributes & ~TEXTTYPE_ATTR_PAD_SPACE) || specific_attributes_length)
|
|
return false;
|
|
|
|
cache->texttype_version = TEXTTYPE_VERSION_1;
|
|
cache->texttype_name = POSIX;
|
|
cache->texttype_country = country;
|
|
cache->texttype_pad_option = (attributes & TEXTTYPE_ATTR_PAD_SPACE) ? true : false;
|
|
cache->texttype_fn_key_length = famasc_key_length;
|
|
cache->texttype_fn_string_to_key= famasc_string_to_key;
|
|
cache->texttype_fn_compare = famasc_compare;
|
|
//cache->texttype_fn_str_to_upper = famasc_str_to_upper;
|
|
//cache->texttype_fn_str_to_lower = famasc_str_to_lower;
|
|
|
|
return true;
|
|
}
|
|
|
|
|
|
|
|
TEXTTYPE_ENTRY(DOS101_init)
|
|
{
|
|
static const ASCII POSIX[] = "C.DOS437";
|
|
|
|
return FAMILY_ASCII(cache, CC_C, POSIX, attributes, specific_attributes, specific_attributes_length);
|
|
}
|
|
|
|
|
|
TEXTTYPE_ENTRY(DOS107_init)
|
|
{
|
|
static const ASCII POSIX[] = "C.DOS865";
|
|
|
|
return FAMILY_ASCII(cache, CC_C, POSIX, attributes, specific_attributes, specific_attributes_length);
|
|
}
|
|
|
|
|
|
TEXTTYPE_ENTRY(DOS160_init)
|
|
{
|
|
static const ASCII POSIX[] = "C.DOS850";
|
|
|
|
return FAMILY_ASCII(cache, CC_C, POSIX, attributes, specific_attributes, specific_attributes_length);
|
|
}
|
|
|
|
|
|
TEXTTYPE_ENTRY(ISO88591_cp_init)
|
|
{
|
|
static const ASCII POSIX[] = "C.ISO8859_1";
|
|
|
|
return FAMILY_ASCII(cache, CC_C, POSIX, attributes, specific_attributes, specific_attributes_length);
|
|
}
|
|
|
|
|
|
TEXTTYPE_ENTRY (ISO88592_cp_init)
|
|
{
|
|
static const ASCII POSIX[] = "C.ISO8859_2";
|
|
|
|
return FAMILY_ASCII(cache, CC_C, POSIX, attributes, specific_attributes, specific_attributes_length);
|
|
}
|
|
|
|
|
|
TEXTTYPE_ENTRY (ISO88593_cp_init)
|
|
{
|
|
static const ASCII POSIX[] = "C.ISO8859_3";
|
|
|
|
return FAMILY_ASCII(cache, CC_C, POSIX, attributes, specific_attributes, specific_attributes_length);
|
|
}
|
|
|
|
|
|
TEXTTYPE_ENTRY (ISO88594_cp_init)
|
|
{
|
|
static const ASCII POSIX[] = "C.ISO8859_4";
|
|
|
|
return FAMILY_ASCII(cache, CC_C, POSIX, attributes, specific_attributes, specific_attributes_length);
|
|
}
|
|
|
|
|
|
TEXTTYPE_ENTRY (ISO88595_cp_init)
|
|
{
|
|
static const ASCII POSIX[] = "C.ISO8859_5";
|
|
|
|
return FAMILY_ASCII(cache, CC_C, POSIX, attributes, specific_attributes, specific_attributes_length);
|
|
}
|
|
|
|
|
|
TEXTTYPE_ENTRY (ISO88596_cp_init)
|
|
{
|
|
static const ASCII POSIX[] = "C.ISO8859_6";
|
|
|
|
return FAMILY_ASCII(cache, CC_C, POSIX, attributes, specific_attributes, specific_attributes_length);
|
|
}
|
|
|
|
|
|
TEXTTYPE_ENTRY (ISO88597_cp_init)
|
|
{
|
|
static const ASCII POSIX[] = "C.ISO8859_7";
|
|
|
|
return FAMILY_ASCII(cache, CC_C, POSIX, attributes, specific_attributes, specific_attributes_length);
|
|
}
|
|
|
|
|
|
TEXTTYPE_ENTRY (ISO88598_cp_init)
|
|
{
|
|
static const ASCII POSIX[] = "C.ISO8859_8";
|
|
|
|
return FAMILY_ASCII(cache, CC_C, POSIX, attributes, specific_attributes, specific_attributes_length);
|
|
}
|
|
|
|
|
|
TEXTTYPE_ENTRY (ISO88599_cp_init)
|
|
{
|
|
static const ASCII POSIX[] = "C.ISO8859_9";
|
|
|
|
return FAMILY_ASCII(cache, CC_C, POSIX, attributes, specific_attributes, specific_attributes_length);
|
|
}
|
|
|
|
|
|
TEXTTYPE_ENTRY (ISO885913_cp_init)
|
|
{
|
|
static const ASCII POSIX[] = "C.ISO8859_13";
|
|
|
|
return FAMILY_ASCII(cache, CC_C, POSIX, attributes, specific_attributes, specific_attributes_length);
|
|
}
|
|
|
|
|
|
TEXTTYPE_ENTRY(DOS852_c0_init)
|
|
{
|
|
static const ASCII POSIX[] = "C.DOS852";
|
|
|
|
return FAMILY_ASCII(cache, CC_C, POSIX, attributes, specific_attributes, specific_attributes_length);
|
|
}
|
|
|
|
|
|
TEXTTYPE_ENTRY(DOS857_c0_init)
|
|
{
|
|
static const ASCII POSIX[] = "C.DOS857";
|
|
|
|
return FAMILY_ASCII(cache, CC_C, POSIX, attributes, specific_attributes, specific_attributes_length);
|
|
}
|
|
|
|
|
|
TEXTTYPE_ENTRY(DOS860_c0_init)
|
|
{
|
|
static const ASCII POSIX[] = "C.DOS860";
|
|
|
|
return FAMILY_ASCII(cache, CC_C, POSIX, attributes, specific_attributes, specific_attributes_length);
|
|
}
|
|
|
|
|
|
TEXTTYPE_ENTRY(DOS861_c0_init)
|
|
{
|
|
static const ASCII POSIX[] = "C.DOS861";
|
|
|
|
return FAMILY_ASCII(cache, CC_C, POSIX, attributes, specific_attributes, specific_attributes_length);
|
|
}
|
|
|
|
|
|
TEXTTYPE_ENTRY(DOS863_c0_init)
|
|
{
|
|
static const ASCII POSIX[] = "C.DOS863";
|
|
|
|
return FAMILY_ASCII(cache, CC_C, POSIX, attributes, specific_attributes, specific_attributes_length);
|
|
}
|
|
|
|
|
|
TEXTTYPE_ENTRY(DOS737_c0_init)
|
|
{
|
|
static const ASCII POSIX[] = "C.DOS737";
|
|
|
|
return FAMILY_ASCII(cache, CC_C, POSIX, attributes, specific_attributes, specific_attributes_length);
|
|
}
|
|
|
|
|
|
TEXTTYPE_ENTRY(DOS775_c0_init)
|
|
{
|
|
static const ASCII POSIX[] = "C.DOS775";
|
|
|
|
return FAMILY_ASCII(cache, CC_C, POSIX, attributes, specific_attributes, specific_attributes_length);
|
|
}
|
|
|
|
|
|
TEXTTYPE_ENTRY(DOS858_c0_init)
|
|
{
|
|
static const ASCII POSIX[] = "C.DOS858";
|
|
|
|
return FAMILY_ASCII(cache, CC_C, POSIX, attributes, specific_attributes, specific_attributes_length);
|
|
}
|
|
|
|
|
|
TEXTTYPE_ENTRY(DOS862_c0_init)
|
|
{
|
|
static const ASCII POSIX[] = "C.DOS862";
|
|
|
|
return FAMILY_ASCII(cache, CC_C, POSIX, attributes, specific_attributes, specific_attributes_length);
|
|
}
|
|
|
|
|
|
TEXTTYPE_ENTRY(DOS864_c0_init)
|
|
{
|
|
static const ASCII POSIX[] = "C.DOS864";
|
|
|
|
return FAMILY_ASCII(cache, CC_C, POSIX, attributes, specific_attributes, specific_attributes_length);
|
|
}
|
|
|
|
|
|
TEXTTYPE_ENTRY(DOS866_c0_init)
|
|
{
|
|
static const ASCII POSIX[] = "C.DOS866";
|
|
|
|
return FAMILY_ASCII(cache, CC_C, POSIX, attributes, specific_attributes, specific_attributes_length);
|
|
}
|
|
|
|
|
|
TEXTTYPE_ENTRY(DOS869_c0_init)
|
|
{
|
|
static const ASCII POSIX[] = "C.DOS869";
|
|
|
|
return FAMILY_ASCII(cache, CC_C, POSIX, attributes, specific_attributes, specific_attributes_length);
|
|
}
|
|
|
|
|
|
TEXTTYPE_ENTRY(CYRL_c0_init)
|
|
{
|
|
static const ASCII POSIX[] = "C.CYRL";
|
|
|
|
return FAMILY_ASCII(cache, CC_C, POSIX, attributes, specific_attributes, specific_attributes_length);
|
|
}
|
|
|
|
|
|
TEXTTYPE_ENTRY(WIN1250_c0_init)
|
|
{
|
|
static const ASCII POSIX[] = "C.ISO8859_1";
|
|
|
|
return FAMILY_ASCII(cache, CC_C, POSIX, attributes, specific_attributes, specific_attributes_length);
|
|
}
|
|
|
|
|
|
TEXTTYPE_ENTRY(WIN1251_c0_init)
|
|
{
|
|
static const ASCII POSIX[] = "C.ISO8859_1";
|
|
|
|
return FAMILY_ASCII(cache, CC_C, POSIX, attributes, specific_attributes, specific_attributes_length);
|
|
}
|
|
|
|
|
|
TEXTTYPE_ENTRY(WIN1252_c0_init)
|
|
{
|
|
static const ASCII POSIX[] = "C.ISO8859_1";
|
|
|
|
return FAMILY_ASCII(cache, CC_C, POSIX, attributes, specific_attributes, specific_attributes_length);
|
|
}
|
|
|
|
|
|
TEXTTYPE_ENTRY(WIN1253_c0_init)
|
|
{
|
|
static const ASCII POSIX[] = "C.ISO8859_1";
|
|
|
|
return FAMILY_ASCII(cache, CC_C, POSIX, attributes, specific_attributes, specific_attributes_length);
|
|
}
|
|
|
|
|
|
TEXTTYPE_ENTRY(WIN1254_c0_init)
|
|
{
|
|
static const ASCII POSIX[] = "C.ISO8859_1";
|
|
|
|
return FAMILY_ASCII(cache, CC_C, POSIX, attributes, specific_attributes, specific_attributes_length);
|
|
}
|
|
|
|
|
|
TEXTTYPE_ENTRY(WIN1255_c0_init)
|
|
{
|
|
static const ASCII POSIX[] = "C.ISO8859_5";
|
|
|
|
return FAMILY_ASCII(cache, CC_C, POSIX, attributes, specific_attributes, specific_attributes_length);
|
|
}
|
|
|
|
|
|
TEXTTYPE_ENTRY(WIN1256_c0_init)
|
|
{
|
|
static const ASCII POSIX[] = "C.ISO8859_1";
|
|
|
|
return FAMILY_ASCII(cache, CC_C, POSIX, attributes, specific_attributes, specific_attributes_length);
|
|
}
|
|
|
|
|
|
TEXTTYPE_ENTRY(WIN1257_c0_init)
|
|
{
|
|
static const ASCII POSIX[] = "C.ISO8859_1";
|
|
|
|
return FAMILY_ASCII(cache, CC_C, POSIX, attributes, specific_attributes, specific_attributes_length);
|
|
}
|
|
|
|
|
|
TEXTTYPE_ENTRY(NEXT_c0_init)
|
|
{
|
|
static const ASCII POSIX[] = "C.ISO8859_1";
|
|
|
|
return FAMILY_ASCII(cache, CC_C, POSIX, attributes, specific_attributes, specific_attributes_length);
|
|
}
|
|
|
|
|
|
TEXTTYPE_ENTRY(KOI8R_c0_init)
|
|
{
|
|
static const ASCII POSIX[] = "C.KOI8R";
|
|
|
|
return FAMILY_ASCII(cache, CC_C, POSIX, attributes, specific_attributes, specific_attributes_length);
|
|
}
|
|
|
|
|
|
TEXTTYPE_ENTRY(KOI8U_c0_init)
|
|
{
|
|
static const ASCII POSIX[] = "C.KOI8U";
|
|
|
|
return FAMILY_ASCII(cache, CC_C, POSIX, attributes, specific_attributes, specific_attributes_length);
|
|
}
|
|
|
|
|
|
TEXTTYPE_ENTRY(WIN1258_c0_init)
|
|
{
|
|
static const ASCII POSIX[] = "C.ISO8859_1";
|
|
|
|
return FAMILY_ASCII(cache, CC_C, POSIX, attributes, specific_attributes, specific_attributes_length);
|
|
}
|
|
|
|
|
|
/*
|
|
* Generic base for InterBase 4.0 Language Driver - ASCII family (binary
|
|
* 8 bit sorting)
|
|
*/
|
|
|
|
const USHORT LANGASCII_MAX_KEY = MAX_KEY;
|
|
const BYTE ASCII_SPACE = 32; // ASCII code for space
|
|
|
|
#define ASCII7_UPPER(ch) \
|
|
((((UCHAR) (ch) >= (UCHAR) ASCII_LOWER_A) && ((UCHAR) (ch) <= (UCHAR) ASCII_LOWER_Z)) \
|
|
? (UCHAR) ((ch)-ASCII_LOWER_A+ASCII_UPPER_A) \
|
|
: (UCHAR) (ch))
|
|
#define ASCII7_LOWER(ch) \
|
|
((((UCHAR) (ch) >= (UCHAR) ASCII_UPPER_A) && ((UCHAR) (ch) <= (UCHAR) ASCII_UPPER_Z)) \
|
|
? (UCHAR) ((ch)-ASCII_UPPER_A+ASCII_LOWER_A) \
|
|
: (UCHAR) (ch))
|
|
|
|
|
|
|
|
/*
|
|
* key_length (in_len)
|
|
*
|
|
* For an input string of (in_len) bytes, return the maximum
|
|
* key buffer length.
|
|
*
|
|
* This is used for index buffer allocation within the
|
|
* Engine.
|
|
*/
|
|
USHORT famasc_key_length(TEXTTYPE obj, USHORT inLen)
|
|
{
|
|
/* fb_assert (inLen <= LANGASCII_MAX_KEY); - possible upper logic error if true */
|
|
return (MIN(inLen, LANGASCII_MAX_KEY));
|
|
}
|
|
|
|
|
|
/*
|
|
*
|
|
* Convert a user string to a sequence that will collate bytewise.
|
|
*
|
|
* For ASCII type collation (codepoint collation) this mearly
|
|
* involves stripping the space character off the key.
|
|
*
|
|
* RETURN:
|
|
* Length, in bytes, of returned key
|
|
*/
|
|
USHORT famasc_string_to_key(TEXTTYPE obj, USHORT iInLen, const BYTE* pInChar, USHORT iOutLen, BYTE *pOutChar,
|
|
USHORT key_type) // unused
|
|
{
|
|
fb_assert(pOutChar != NULL);
|
|
fb_assert(pInChar != NULL);
|
|
fb_assert(iInLen <= LANGASCII_MAX_KEY);
|
|
fb_assert(iOutLen <= LANGASCII_MAX_KEY);
|
|
fb_assert(iOutLen >= famasc_key_length(obj, iInLen));
|
|
|
|
/* point inbuff at last character */
|
|
const BYTE* inbuff = pInChar + iInLen - 1;
|
|
|
|
if (obj->texttype_pad_option)
|
|
{
|
|
/* skip backwards over all spaces & reset input length */
|
|
while ((inbuff >= pInChar) && (*inbuff == ASCII_SPACE))
|
|
inbuff--;
|
|
}
|
|
|
|
iInLen = (inbuff - pInChar + 1);
|
|
|
|
BYTE* outbuff = pOutChar;
|
|
while (iInLen-- && iOutLen--) {
|
|
*outbuff++ = *pInChar++;
|
|
}
|
|
return (outbuff - pOutChar);
|
|
}
|
|
|
|
|
|
static bool all_spaces(const BYTE* s, SLONG len)
|
|
{
|
|
fb_assert(s != NULL);
|
|
|
|
while (len-- > 0) {
|
|
if (*s++ != ASCII_SPACE)
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
|
|
SSHORT famasc_compare(TEXTTYPE obj, ULONG l1, const BYTE* s1, ULONG l2, const BYTE* s2,
|
|
INTL_BOOL* error_flag)
|
|
{
|
|
fb_assert(obj != NULL);
|
|
fb_assert(s1 != NULL);
|
|
fb_assert(s2 != NULL);
|
|
fb_assert(error_flag != NULL);
|
|
|
|
*error_flag = false;
|
|
|
|
const ULONG len = MIN(l1, l2);
|
|
for (ULONG i = 0; i < len; i++) {
|
|
if (s1[i] == s2[i])
|
|
continue;
|
|
else if (all_spaces(&s1[i], (SLONG) (l1 - i)))
|
|
return -1;
|
|
else if (all_spaces(&s2[i], (SLONG) (l2 - i)))
|
|
return 1;
|
|
else if (s1[i] < s2[i])
|
|
return -1;
|
|
else
|
|
return 1;
|
|
}
|
|
|
|
if (l1 > len) {
|
|
if (obj->texttype_pad_option && all_spaces(&s1[len], (SLONG) (l1 - len)))
|
|
return 0;
|
|
return 1;
|
|
}
|
|
if (l2 > len) {
|
|
if (obj->texttype_pad_option && all_spaces(&s2[len], (SLONG) (l2 - len)))
|
|
return 0;
|
|
return -1;
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
|
|
ULONG famasc_str_to_upper(TEXTTYPE obj, ULONG iLen, const BYTE* pStr, ULONG iOutLen, BYTE *pOutStr)
|
|
{
|
|
fb_assert(pStr != NULL);
|
|
fb_assert(pOutStr != NULL);
|
|
fb_assert(iOutLen >= iLen);
|
|
const BYTE* const p = pOutStr;
|
|
while (iLen && iOutLen) {
|
|
*pOutStr++ = ASCII7_UPPER(*pStr);
|
|
pStr++;
|
|
iLen--;
|
|
iOutLen--;
|
|
}
|
|
if (iLen != 0)
|
|
return INTL_BAD_STR_LENGTH;
|
|
return (pOutStr - p);
|
|
}
|
|
|
|
|
|
ULONG famasc_str_to_lower(TEXTTYPE obj, ULONG iLen, const BYTE* pStr, ULONG iOutLen, BYTE *pOutStr)
|
|
{
|
|
fb_assert(pStr != NULL);
|
|
fb_assert(pOutStr != NULL);
|
|
fb_assert(iOutLen >= iLen);
|
|
const BYTE* const p = pOutStr;
|
|
while (iLen && iOutLen) {
|
|
*pOutStr++ = ASCII7_LOWER(*pStr);
|
|
pStr++;
|
|
iLen--;
|
|
iOutLen--;
|
|
}
|
|
if (iLen != 0)
|
|
return INTL_BAD_STR_LENGTH;
|
|
return (pOutStr - p);
|
|
}
|