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Implement sdb_js0n() without GNUC weirdness (#12829)

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GustavoLCR 2019-01-18 07:28:56 -03:00 committed by radare
parent 7bd288c454
commit d3d0d6db24
1 changed files with 135 additions and 4 deletions
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139
shlr/sdb/src/json/js0n.c
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@ -5,10 +5,143 @@
#include "rangstr.h"
#define PUSH(i) if(depth == 1) prev = *out++ = ((cur+i) - js)
#define CAP(i) if(depth == 1) prev = *out++ = ((cur+i) - (js + prev) + 1)
#ifdef _MSC_VER
#pragma message ("TODO: json not implemented for this platform")
#define GO_DOWN (1)
#define GO_UP (1 << 1)
#define GO_Q_DOWN (1 << 2)
#define GO_Q_UP (1 << 3)
#define GO_BARE (1 << 4)
#define GO_UNBARE (1 << 5)
#define GO_ESCAPE (1 << 6)
#define GO_UNESCAPE (1 << 7)
#define GO_UTF8 (1 << 8)
#define GO_UTF8_CONTINUE (1 << 9)
int sdb_js0n(const ut8 *js, RangstrType len, RangstrType *out) {
return 1;
ut32 prev = 0;
const ut8 *cur, *end;
int depth = 0, utf8_remain = 0, what_did = 1;
for (cur = js, end = js + len; cur < end; cur++) {
if (what_did & GO_BARE) {
switch (*cur) {
case ' ':
case '\t':
case '\r':
case '\n':
case ',':
case ']':
case '}':
what_did = GO_UNBARE;
CAP (-1);
break;
default:
if (*cur >= 32 && *cur <= 126) {
continue;
}
return 1;
}
// Same *cur
}
if (what_did & GO_UTF8) {
if (*cur < 128 || (*cur >=192 && *cur <= 255)) {
return 1;
}
if (!--utf8_remain) {
what_did = GO_UTF8_CONTINUE;
}
continue;
}
if (what_did & GO_ESCAPE) {
switch (*cur) {
case '"':
case '\\':
case '/':
case 'b':
case 'f':
case 'n':
case 'r':
case 't':
case 'u':
what_did = GO_UNESCAPE;
break;
default:
return 1;
}
continue;
}
if (what_did & GO_Q_UP || what_did & GO_UTF8_CONTINUE || what_did & GO_UNESCAPE) {
switch (*cur) {
case '\\':
what_did = GO_ESCAPE;
break;
case '"':
what_did = GO_Q_DOWN;
CAP (-1);
break;
default:
if (*cur <= 31 || (*cur >= 127 && *cur <= 191) || (*cur >= 248 && *cur <= 255)) {
return 1;
}
if (*cur < 127) {
continue;
}
what_did = GO_UTF8;
if (*cur < 224) {
utf8_remain = 1;
continue;
}
if (*cur < 239) {
utf8_remain = 2;
continue;
}
utf8_remain = 3;
break;
}
continue;
}
switch (*cur) {
case '\t':
case ' ':
case '\r':
case '\n':
case ',':
case ':':
break;
case '"':
PUSH (1);
what_did = GO_Q_UP;
break;
case '[':
case '{':
PUSH (0);
++depth;
what_did = GO_UP;
break;
case ']':
case '}':
--depth;
CAP (0);
what_did = GO_DOWN;
break;
case '-':
case 't':
case 'f':
case 'n':
what_did = GO_BARE;
PUSH (0);
break;
default:
if (*cur >= 48 && *cur <= 57) { // 0-9
what_did = GO_BARE;
PUSH (0);
break;
}
return 1;
}
}
return depth;
}
#else
#if defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6))
@ -19,8 +152,6 @@ int sdb_js0n(const ut8 *js, RangstrType len, RangstrType *out) {
#pragma GCC diagnostic ignored "-Winitializer-overrides"
#define HAVE_RAWSTR 0
#define PUSH(i) if(depth == 1) prev = *out++ = ((cur+i) - js)
#define CAP(i) if(depth == 1) prev = *out++ = ((cur+i) - (js + prev) + 1)
int sdb_js0n(const ut8 *js, RangstrType len, RangstrType *out) {
ut32 prev = 0;