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/*
* Copyright (c) International Business Machines Corp., 2000-2002
*
* 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 2 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, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/*
* Notes:
* These APIs are based on the C library functions. The semantics
* should match the C functions but with expanded size operands.
*
* The upper/lower functions are based on a table created by mkupr.
* This is a compressed table of upper and lower case conversion.
*/
struct UNICASERANGE {
UniChar start;
UniChar end;
signed char *table;
};
extern signed char UniUpperTable[512];
extern struct UNICASERANGE UniUpperRange[];
/*
* UniStrcpy: Copy a string
*/
static inline UniChar *UniStrcpy(UniChar * ucs1, const UniChar * ucs2)
{
UniChar *anchor = ucs1; /* save the start of result string */
while ((*ucs1++ = *ucs2++));
return anchor;
}
/*
* UniStrlen: Return the length of a string
*/
static inline size_t UniStrlen(const UniChar * ucs1)
{
int i = 0;
while (*ucs1++)
i++;
return i;
}
/*
* UniStrncmp: Compare length limited string
*/
static inline int UniStrncmp(const UniChar * ucs1, const UniChar * ucs2,
size_t n)
{
if (!n)
return 0; /* Null strings are equal */
while ((*ucs1 == *ucs2) && *ucs1 && --n) {
ucs1++;
ucs2++;
}
return (int) *ucs1 - (int) *ucs2;
}
/*
* UniStrncpy: Copy length limited string with pad
*/
static inline UniChar *UniStrncpy(UniChar * ucs1, const UniChar * ucs2,
size_t n)
{
UniChar *anchor = ucs1;
while (n-- && *ucs2) /* Copy the strings */
*ucs1++ = *ucs2++;
n++;
while (n--) /* Pad with nulls */
*ucs1++ = 0;
return anchor;
}
/*
* UniToupper: Convert a unicode character to upper case
*/
static inline UniChar UniToupper(UniChar uc)
{
struct UNICASERANGE *rp;
if (uc < sizeof(UniUpperTable)) { /* Latin characters */
return uc + UniUpperTable[uc]; /* Use base tables */
} else {
rp = UniUpperRange; /* Use range tables */
while (rp->start) {
if (uc < rp->start) /* Before start of range */
return uc; /* Uppercase = input */
if (uc <= rp->end) /* In range */
return uc + rp->table[uc - rp->start];
rp++; /* Try next range */
}
}
return uc; /* Past last range */
}
/*
* UniStrupr: Upper case a unicode string
*/
static inline UniChar *UniStrupr(UniChar * upin)
{
UniChar *up;
up = upin;
while (*up) { /* For all characters */
*up = UniToupper(*up);
up++;
}
return upin; /* Return input pointer */
}
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