aboutsummaryrefslogtreecommitdiff
path: root/src/univalue/univalue_read.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'src/univalue/univalue_read.cpp')
-rw-r--r--src/univalue/univalue_read.cpp389
1 files changed, 0 insertions, 389 deletions
diff --git a/src/univalue/univalue_read.cpp b/src/univalue/univalue_read.cpp
deleted file mode 100644
index 64591234cb..0000000000
--- a/src/univalue/univalue_read.cpp
+++ /dev/null
@@ -1,389 +0,0 @@
-// Copyright 2014 BitPay Inc.
-// Distributed under the MIT software license, see the accompanying
-// file COPYING or http://www.opensource.org/licenses/mit-license.php.
-
-#include <string.h>
-#include <vector>
-#include <stdio.h>
-#include "univalue.h"
-
-using namespace std;
-
-// convert hexadecimal string to unsigned integer
-static const char *hatoui(const char *first, const char *last,
- unsigned int& out)
-{
- unsigned int result = 0;
- for (; first != last; ++first)
- {
- int digit;
- if (isdigit(*first))
- digit = *first - '0';
-
- else if (*first >= 'a' && *first <= 'f')
- digit = *first - 'a' + 10;
-
- else if (*first >= 'A' && *first <= 'F')
- digit = *first - 'A' + 10;
-
- else
- break;
-
- result = 16 * result + digit;
- }
- out = result;
-
- return first;
-}
-
-enum jtokentype getJsonToken(string& tokenVal, unsigned int& consumed,
- const char *raw)
-{
- tokenVal.clear();
- consumed = 0;
-
- const char *rawStart = raw;
-
- while ((*raw) && (isspace(*raw))) // skip whitespace
- raw++;
-
- switch (*raw) {
-
- case 0:
- return JTOK_NONE;
-
- case '{':
- raw++;
- consumed = (raw - rawStart);
- return JTOK_OBJ_OPEN;
- case '}':
- raw++;
- consumed = (raw - rawStart);
- return JTOK_OBJ_CLOSE;
- case '[':
- raw++;
- consumed = (raw - rawStart);
- return JTOK_ARR_OPEN;
- case ']':
- raw++;
- consumed = (raw - rawStart);
- return JTOK_ARR_CLOSE;
-
- case ':':
- raw++;
- consumed = (raw - rawStart);
- return JTOK_COLON;
- case ',':
- raw++;
- consumed = (raw - rawStart);
- return JTOK_COMMA;
-
- case 'n':
- case 't':
- case 'f':
- if (!strncmp(raw, "null", 4)) {
- raw += 4;
- consumed = (raw - rawStart);
- return JTOK_KW_NULL;
- } else if (!strncmp(raw, "true", 4)) {
- raw += 4;
- consumed = (raw - rawStart);
- return JTOK_KW_TRUE;
- } else if (!strncmp(raw, "false", 5)) {
- raw += 5;
- consumed = (raw - rawStart);
- return JTOK_KW_FALSE;
- } else
- return JTOK_ERR;
-
- case '-':
- case '0':
- case '1':
- case '2':
- case '3':
- case '4':
- case '5':
- case '6':
- case '7':
- case '8':
- case '9': {
- // part 1: int
- string numStr;
-
- const char *first = raw;
-
- const char *firstDigit = first;
- if (!isdigit(*firstDigit))
- firstDigit++;
- if ((*firstDigit == '0') && isdigit(firstDigit[1]))
- return JTOK_ERR;
-
- numStr += *raw; // copy first char
- raw++;
-
- if ((*first == '-') && (!isdigit(*raw)))
- return JTOK_ERR;
-
- while ((*raw) && isdigit(*raw)) { // copy digits
- numStr += *raw;
- raw++;
- }
-
- // part 2: frac
- if (*raw == '.') {
- numStr += *raw; // copy .
- raw++;
-
- if (!isdigit(*raw))
- return JTOK_ERR;
- while ((*raw) && isdigit(*raw)) { // copy digits
- numStr += *raw;
- raw++;
- }
- }
-
- // part 3: exp
- if (*raw == 'e' || *raw == 'E') {
- numStr += *raw; // copy E
- raw++;
-
- if (*raw == '-' || *raw == '+') { // copy +/-
- numStr += *raw;
- raw++;
- }
-
- if (!isdigit(*raw))
- return JTOK_ERR;
- while ((*raw) && isdigit(*raw)) { // copy digits
- numStr += *raw;
- raw++;
- }
- }
-
- tokenVal = numStr;
- consumed = (raw - rawStart);
- return JTOK_NUMBER;
- }
-
- case '"': {
- raw++; // skip "
-
- string valStr;
-
- while (*raw) {
- if (*raw < 0x20)
- return JTOK_ERR;
-
- else if (*raw == '\\') {
- raw++; // skip backslash
-
- switch (*raw) {
- case '"': valStr += "\""; break;
- case '\\': valStr += "\\"; break;
- case '/': valStr += "/"; break;
- case 'b': valStr += "\b"; break;
- case 'f': valStr += "\f"; break;
- case 'n': valStr += "\n"; break;
- case 'r': valStr += "\r"; break;
- case 't': valStr += "\t"; break;
-
- case 'u': {
- unsigned int codepoint;
- if (hatoui(raw + 1, raw + 1 + 4, codepoint) !=
- raw + 1 + 4)
- return JTOK_ERR;
-
- if (codepoint <= 0x7f)
- valStr.push_back((char)codepoint);
- else if (codepoint <= 0x7FF) {
- valStr.push_back((char)(0xC0 | (codepoint >> 6)));
- valStr.push_back((char)(0x80 | (codepoint & 0x3F)));
- } else if (codepoint <= 0xFFFF) {
- valStr.push_back((char)(0xE0 | (codepoint >> 12)));
- valStr.push_back((char)(0x80 | ((codepoint >> 6) & 0x3F)));
- valStr.push_back((char)(0x80 | (codepoint & 0x3F)));
- }
-
- raw += 4;
- break;
- }
- default:
- return JTOK_ERR;
-
- }
-
- raw++; // skip esc'd char
- }
-
- else if (*raw == '"') {
- raw++; // skip "
- break; // stop scanning
- }
-
- else {
- valStr += *raw;
- raw++;
- }
- }
-
- tokenVal = valStr;
- consumed = (raw - rawStart);
- return JTOK_STRING;
- }
-
- default:
- return JTOK_ERR;
- }
-}
-
-bool UniValue::read(const char *raw)
-{
- clear();
-
- bool expectName = false;
- bool expectColon = false;
- vector<UniValue*> stack;
-
- string tokenVal;
- unsigned int consumed;
- enum jtokentype tok = JTOK_NONE;
- enum jtokentype last_tok = JTOK_NONE;
- do {
- last_tok = tok;
-
- tok = getJsonToken(tokenVal, consumed, raw);
- if (tok == JTOK_NONE || tok == JTOK_ERR)
- return false;
- raw += consumed;
-
- switch (tok) {
-
- case JTOK_OBJ_OPEN:
- case JTOK_ARR_OPEN: {
- VType utyp = (tok == JTOK_OBJ_OPEN ? VOBJ : VARR);
- if (!stack.size()) {
- if (utyp == VOBJ)
- setObject();
- else
- setArray();
- stack.push_back(this);
- } else {
- UniValue tmpVal(utyp);
- UniValue *top = stack.back();
- top->values.push_back(tmpVal);
-
- UniValue *newTop = &(top->values.back());
- stack.push_back(newTop);
- }
-
- if (utyp == VOBJ)
- expectName = true;
- break;
- }
-
- case JTOK_OBJ_CLOSE:
- case JTOK_ARR_CLOSE: {
- if (!stack.size() || expectColon || (last_tok == JTOK_COMMA))
- return false;
-
- VType utyp = (tok == JTOK_OBJ_CLOSE ? VOBJ : VARR);
- UniValue *top = stack.back();
- if (utyp != top->getType())
- return false;
-
- stack.pop_back();
- expectName = false;
- break;
- }
-
- case JTOK_COLON: {
- if (!stack.size() || expectName || !expectColon)
- return false;
-
- UniValue *top = stack.back();
- if (top->getType() != VOBJ)
- return false;
-
- expectColon = false;
- break;
- }
-
- case JTOK_COMMA: {
- if (!stack.size() || expectName || expectColon ||
- (last_tok == JTOK_COMMA) || (last_tok == JTOK_ARR_OPEN))
- return false;
-
- UniValue *top = stack.back();
- if (top->getType() == VOBJ)
- expectName = true;
- break;
- }
-
- case JTOK_KW_NULL:
- case JTOK_KW_TRUE:
- case JTOK_KW_FALSE: {
- if (!stack.size() || expectName || expectColon)
- return false;
-
- UniValue tmpVal;
- switch (tok) {
- case JTOK_KW_NULL:
- // do nothing more
- break;
- case JTOK_KW_TRUE:
- tmpVal.setBool(true);
- break;
- case JTOK_KW_FALSE:
- tmpVal.setBool(false);
- break;
- default: /* impossible */ break;
- }
-
- UniValue *top = stack.back();
- top->values.push_back(tmpVal);
-
- break;
- }
-
- case JTOK_NUMBER: {
- if (!stack.size() || expectName || expectColon)
- return false;
-
- UniValue tmpVal(VNUM, tokenVal);
- UniValue *top = stack.back();
- top->values.push_back(tmpVal);
-
- break;
- }
-
- case JTOK_STRING: {
- if (!stack.size())
- return false;
-
- UniValue *top = stack.back();
-
- if (expectName) {
- top->keys.push_back(tokenVal);
- expectName = false;
- expectColon = true;
- } else {
- UniValue tmpVal(VSTR, tokenVal);
- top->values.push_back(tmpVal);
- }
-
- break;
- }
-
- default:
- return false;
- }
- } while (!stack.empty ());
-
- /* Check that nothing follows the initial construct (parsed above). */
- tok = getJsonToken(tokenVal, consumed, raw);
- if (tok != JTOK_NONE)
- return false;
-
- return true;
-}
-
generated by cgit v1.2.3 (git 2.26.2) at 2024-11-15 05:33:51 +0000