mirror of
https://github.com/vlang/v.git
synced 2023-08-10 21:13:21 +03:00
websocket: move ws example to examples folder (#5875)
This commit is contained in:
parent
303b65c0b9
commit
6dbc143d67
@ -8,10 +8,6 @@ const (
|
||||
eb = eventbus.new()
|
||||
)
|
||||
|
||||
#flag -I @VROOT/vlib/net/websocket/examples
|
||||
#include "utf8.h"
|
||||
fn C.utf8_validate_str() bool
|
||||
|
||||
fn main() {
|
||||
// println(sss)
|
||||
/*
|
@ -1,166 +0,0 @@
|
||||
/*
|
||||
Copyright (c) 2015, Andreas Fett
|
||||
All rights reserved.
|
||||
Redistribution and use in source and binary forms, with or without
|
||||
modification, are permitted provided that the following conditions are met:
|
||||
* Redistributions of source code must retain the above copyright notice, this
|
||||
list of conditions and the following disclaimer.
|
||||
* Redistributions in binary form must reproduce the above copyright notice,
|
||||
this list of conditions and the following disclaimer in the documentation
|
||||
and/or other materials provided with the distribution.
|
||||
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
||||
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
||||
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
|
||||
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
||||
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
|
||||
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
||||
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
||||
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#include <assert.h>
|
||||
|
||||
typedef int utf8_state;
|
||||
|
||||
static utf8_state next_state(utf8_state, unsigned char);
|
||||
|
||||
// Public API see utf8-validate.h for docs of the following function
|
||||
|
||||
bool utf8_validate(utf8_state *const state, int c)
|
||||
{
|
||||
assert(state);
|
||||
return (*state = next_state(*state, c)) != -1;
|
||||
}
|
||||
|
||||
bool utf8_validate_some(utf8_state *const state, const void * const src, size_t len)
|
||||
{
|
||||
assert(state);
|
||||
assert(src);
|
||||
for (size_t i = 0; i < len; ++i) {
|
||||
*state = next_state(*state, *((unsigned char *)src + i));
|
||||
if (*state == -1) {
|
||||
return false;
|
||||
}
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
bool utf8_validate_mem(const void * const src, size_t len)
|
||||
{
|
||||
assert(src);
|
||||
utf8_state state = 0;
|
||||
for (size_t i = 0; i < len; ++i) {
|
||||
state = next_state(state, *((unsigned char *)src + i));
|
||||
if (state == -1) {
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
// detect unterminated sequence
|
||||
return state == 0;
|
||||
}
|
||||
|
||||
bool utf8_validate_str(const char * const str)
|
||||
{
|
||||
assert(str);
|
||||
utf8_state state = 0;
|
||||
for (size_t i = 0; str[i] != 0; ++i) {
|
||||
state = next_state(state, str[i]);
|
||||
if (state == -1) {
|
||||
return false;
|
||||
}
|
||||
}
|
||||
// detect unterminated sequence
|
||||
return state == 0;
|
||||
}
|
||||
|
||||
/* Private state engine
|
||||
*
|
||||
* The macros below assemble the cases for a switch statement
|
||||
* matching the language of the ABNF grammar given in rfc3629.
|
||||
*
|
||||
* Each SEQ# macro adds the states to match a # char long sequence.
|
||||
*
|
||||
* The SEQ#_HELPERs all have a 'fall through' to the next sequence.
|
||||
* for # > 1 this is an explicit goto
|
||||
*/
|
||||
|
||||
#define SEQ_END(n) SEQ_ ## n ## _END
|
||||
|
||||
#define SEQ1_HELPER(s, r0) \
|
||||
case (s * 4) + 0: if (r0) return 0; goto SEQ_END(s); \
|
||||
SEQ_END(s):
|
||||
|
||||
#define SEQ2_HELPER(s, r0, r1) \
|
||||
case (s * 4) + 0: if (r0) { printf("ehe"); return (s * 4) + 1; } goto SEQ_END(s); \
|
||||
case (s * 4) + 1: if (r1) return 0; return -1; \
|
||||
SEQ_END(s):
|
||||
|
||||
#define SEQ3_HELPER(s, r0, r1, r2) \
|
||||
case (s * 4) + 0: if (r0) return (s * 4) + 1; goto SEQ_END(s); \
|
||||
case (s * 4) + 1: if (r1) return (s * 4) + 2; return -1; \
|
||||
case (s * 4) + 2: if (r2) return 0; return -1; \
|
||||
SEQ_END(s):
|
||||
|
||||
#define SEQ4_HELPER(s, r0, r1, r2, r3) \
|
||||
case (s * 4) + 0: if (r0) return (s * 4) + 1; goto SEQ_END(s); \
|
||||
case (s * 4) + 1: if (r1) return (s * 4) + 2; return -1; \
|
||||
case (s * 4) + 2: if (r2) return (s * 4) + 3; return -1; \
|
||||
case (s * 4) + 3: if (r3) return 0; return -1; \
|
||||
SEQ_END(s):
|
||||
|
||||
#define SEQ1(s, r0) SEQ1_HELPER(s, r0)
|
||||
#define SEQ2(s, r0, r1) SEQ2_HELPER(s, r0, r1)
|
||||
#define SEQ3(s, r0, r1, r2) SEQ3_HELPER(s, r0, r1, r2)
|
||||
#define SEQ4(s, r0, r1, r2, r3) SEQ4_HELPER(s, r0, r1, r2, r3)
|
||||
|
||||
// Matcher macros
|
||||
|
||||
#define VALUE(v) (c == v)
|
||||
#define RANGE(s, e) (c >= s && c <= e)
|
||||
/* workaround for "-Wtype-limits" as c >= s is allways true for
|
||||
* the unsigned char in the case of c == 0 */
|
||||
#define EGNAR(s, e) ((c >= s + 1 && c <= e) || c == s)
|
||||
|
||||
/* from rfc3629
|
||||
*
|
||||
* UTF8-octets = *( UTF8-char )
|
||||
* UTF8-char = UTF8-1 / UTF8-2 / UTF8-3 / UTF8-4
|
||||
* UTF8-1 = %x00-7F
|
||||
* UTF8-2 = %xC2-DF UTF8-tail
|
||||
* UTF8-3 = %xE0 %xA0-BF UTF8-tail / %xE1-EC 2( UTF8-tail ) /
|
||||
* %xED %x80-9F UTF8-tail / %xEE-EF 2( UTF8-tail )
|
||||
* UTF8-4 = %xF0 %x90-BF 2( UTF8-tail ) / %xF1-F3 3( UTF8-tail ) /
|
||||
* %xF4 %x80-8F 2( UTF8-tail )
|
||||
* UTF8-tail = %x80-BF
|
||||
*/
|
||||
|
||||
#define TAIL RANGE(0x80, 0xBF)
|
||||
|
||||
static inline utf8_state next_state(utf8_state state, unsigned char c)
|
||||
{
|
||||
printf("C: %d\n", c);
|
||||
switch (state) {
|
||||
SEQ1(0, EGNAR(0x00, 0x7F))
|
||||
SEQ2(1, RANGE(0xC2, 0xDF), TAIL)
|
||||
SEQ3(2, VALUE(0xE0), RANGE(0xA0, 0xBF), TAIL)
|
||||
SEQ3(3, RANGE(0xE1, 0xEC), TAIL, TAIL)
|
||||
SEQ3(4, VALUE(0xED), RANGE(0x80, 0x9F), TAIL)
|
||||
SEQ3(5, RANGE(0xEE, 0xEF), TAIL, TAIL)
|
||||
SEQ4(6, VALUE(0xF0), RANGE(0x90, 0xBF), TAIL, TAIL)
|
||||
SEQ4(7, RANGE(0xF1, 0xF3), TAIL, TAIL, TAIL)
|
||||
SEQ4(8, VALUE(0xF4), RANGE(0x80, 0x8F), TAIL, TAIL)
|
||||
// no sequence start matched
|
||||
break;
|
||||
default:
|
||||
/*
|
||||
* This should not happen, unless you feed an error
|
||||
* state or an uninitialized utf8_state to this function.
|
||||
*/
|
||||
assert(false && "invalid utf8 state");
|
||||
}
|
||||
|
||||
return -1;
|
||||
}
|
Loading…
Reference in New Issue
Block a user