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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/* This module contains helper functions and macros for converting directory
module to frozen linkage.
*/
#include "nsServiceManagerUtils.h"
#include "nsStringGlue.h"
#include <ctype.h>
#ifdef MOZILLA_INTERNAL_API
/* Internal API helper macros */
#define LdapCompressWhitespace(str) \
(str).CompressWhitespace()
#else // MOZILLA_INTERNAL_API
/* Frozen linkage helper functions */
/* This macro has been copied from msgcore.h */
#define IS_SPACE(VAL) \
(((((PRIntn)(VAL)) & 0x7f) == ((PRIntn)(VAL))) && isspace((PRIntn)(VAL)))
/* This function has been copied from nsMsgUtils.cpp */
inline void LdapCompressWhitespace(nsCString& aString)
{
// This code is frozen linkage specific
aString.Trim(" \f\n\r\t\v");
char *start, *end;
aString.BeginWriting(&start, &end);
for (char *cur = start; cur < end; ++cur) {
if (!IS_SPACE(*cur))
continue;
*cur = ' ';
if (!IS_SPACE(*(cur + 1)))
continue;
// Loop through the white space
char *wend = cur + 2;
while (IS_SPACE(*wend))
++wend;
uint32_t wlen = wend - cur - 1;
// fix "end"
end -= wlen;
// move everything forwards a bit
for (char *m = cur + 1; m < end; ++m) {
*m = *(m + wlen);
}
}
// Set the new length.
aString.SetLength(end - start);
}
/*
* Function copied from nsReadableUtils.
* Migrating to frozen linkage is the only change done
*/
inline
bool IsUTF8(const nsACString& aString)
{
const char *done_reading = aString.EndReading();
int32_t state = 0;
bool overlong = false;
bool surrogate = false;
bool nonchar = false;
uint16_t olupper = 0; // overlong byte upper bound.
uint16_t slower = 0; // surrogate byte lower bound.
const char *ptr = aString.BeginReading();
while (ptr < done_reading) {
uint8_t c;
if (0 == state) {
c = *ptr++;
if ((c & 0x80) == 0x00)
continue;
if ( c <= 0xC1 ) // [80-BF] where not expected, [C0-C1] for overlong.
return false;
else if ((c & 0xE0) == 0xC0)
state = 1;
else if ((c & 0xF0) == 0xE0) {
state = 2;
if ( c == 0xE0 ) { // to exclude E0[80-9F][80-BF]
overlong = true;
olupper = 0x9F;
} else if ( c == 0xED ) { // ED[A0-BF][80-BF] : surrogate codepoint
surrogate = true;
slower = 0xA0;
} else if ( c == 0xEF ) // EF BF [BE-BF] : non-character
nonchar = true;
} else if ( c <= 0xF4 ) { // XXX replace /w UTF8traits::is4byte when it's updated to exclude [F5-F7].(bug 199090)
state = 3;
nonchar = true;
if ( c == 0xF0 ) { // to exclude F0[80-8F][80-BF]{2}
overlong = true;
olupper = 0x8F;
}
else if ( c == 0xF4 ) { // to exclude F4[90-BF][80-BF]
// actually not surrogates but codepoints beyond 0x10FFFF
surrogate = true;
slower = 0x90;
}
} else
return false; // Not UTF-8 string
}
while (ptr < done_reading && state) {
c = *ptr++;
--state;
// non-character : EF BF [BE-BF] or F[0-7] [89AB]F BF [BE-BF]
if ( nonchar && ( !state && c < 0xBE ||
state == 1 && c != 0xBF ||
state == 2 && 0x0F != (0x0F & c) ))
nonchar = false;
if ((c & 0xC0) != 0x80 || overlong && c <= olupper ||
surrogate && slower <= c || nonchar && !state )
return false; // Not UTF-8 string
overlong = surrogate = false;
}
}
return !state; // state != 0 at the end indicates an invalid UTF-8 seq.
}
#define kNotFound -1
#define nsCaseInsensitiveCStringComparator() \
CaseInsensitiveCompare
#define nsCaseInsensitiveStringComparator() \
CaseInsensitiveCompare
#endif // MOZILLA_INTERNAL_API
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