mirror of
https://github.com/Tencent/rapidjson.git
synced 2025-03-09 11:09:32 +01:00
66754fc5b0
git-svn-id: https://rapidjson.googlecode.com/svn/trunk@36 c5894555-1306-4e8d-425f-1f6f381ee07c
62 lines
2.0 KiB
C++
62 lines
2.0 KiB
C++
#include "perftest.h"
|
|
|
|
#if TEST_MISC
|
|
|
|
class Misc : public PerfTest {
|
|
};
|
|
|
|
// Copyright (c) 2008-2010 Bjoern Hoehrmann <bjoern@hoehrmann.de>
|
|
// See http://bjoern.hoehrmann.de/utf-8/decoder/dfa/ for details.
|
|
|
|
#define UTF8_ACCEPT 0
|
|
#define UTF8_REJECT 12
|
|
|
|
static const unsigned char utf8d[] = {
|
|
// The first part of the table maps bytes to character classes that
|
|
// to reduce the size of the transition table and create bitmasks.
|
|
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
|
|
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
|
|
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
|
|
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
|
|
1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,
|
|
7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7, 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
|
|
8,8,2,2,2,2,2,2,2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,
|
|
10,3,3,3,3,3,3,3,3,3,3,3,3,4,3,3, 11,6,6,6,5,8,8,8,8,8,8,8,8,8,8,8,
|
|
|
|
// The second part is a transition table that maps a combination
|
|
// of a state of the automaton and a character class to a state.
|
|
0,12,24,36,60,96,84,12,12,12,48,72, 12,12,12,12,12,12,12,12,12,12,12,12,
|
|
12, 0,12,12,12,12,12, 0,12, 0,12,12, 12,24,12,12,12,12,12,24,12,24,12,12,
|
|
12,12,12,12,12,12,12,24,12,12,12,12, 12,24,12,12,12,12,12,12,12,24,12,12,
|
|
12,12,12,12,12,12,12,36,12,36,12,12, 12,36,12,12,12,12,12,36,12,36,12,12,
|
|
12,36,12,12,12,12,12,12,12,12,12,12,
|
|
};
|
|
|
|
static unsigned inline decode(unsigned* state, unsigned* codep, unsigned byte) {
|
|
unsigned type = utf8d[byte];
|
|
|
|
*codep = (*state != UTF8_ACCEPT) ?
|
|
(byte & 0x3fu) | (*codep << 6) :
|
|
(0xff >> type) & (byte);
|
|
|
|
*state = utf8d[256 + *state + type];
|
|
return *state;
|
|
}
|
|
|
|
static bool IsUTF8(unsigned char* s) {
|
|
unsigned codepoint, state = 0;
|
|
|
|
while (*s)
|
|
decode(&state, &codepoint, *s++);
|
|
|
|
return state == UTF8_ACCEPT;
|
|
}
|
|
|
|
TEST_F(Misc, Hoehrmann_IsUTF8) {
|
|
for (int i = 0; i < kTrialCount; i++) {
|
|
EXPECT_TRUE(IsUTF8((unsigned char*)json_));
|
|
}
|
|
}
|
|
|
|
#endif // TEST_ULTRAJSON
|