add PIJSON, yet without doc
This commit is contained in:
340
libs/main/core/pijson.cpp
Normal file
340
libs/main/core/pijson.cpp
Normal file
@@ -0,0 +1,340 @@
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/*
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PIP - Platform Independent Primitives
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JSON class
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Ivan Pelipenko peri4ko@yandex.ru
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "pijson.h"
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//! \~\class PIJSON pijson.h
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//! \~\details
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//! \~english \section PIJSON_sec0 Synopsis
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//! \~russian \section PIJSON_sec0 Краткий обзор
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//! \~english
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//!
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//! \~russian
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//!
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PIJSON PIJSON::newObject() {
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PIJSON ret;
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ret.c_type = Object;
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return ret;
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}
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PIJSON PIJSON::newArray() {
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PIJSON ret;
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ret.c_type = Array;
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return ret;
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}
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void PIJSON::setValue(const PIVariant & v) {
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c_value = v;
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switch (v.type()) {
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case PIVariant::pivBool: c_type = Boolean; break;
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case PIVariant::pivUChar:
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case PIVariant::pivShort:
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case PIVariant::pivUShort:
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case PIVariant::pivInt:
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case PIVariant::pivUInt:
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case PIVariant::pivLLong:
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case PIVariant::pivULLong:
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case PIVariant::pivFloat:
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case PIVariant::pivDouble:
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case PIVariant::pivLDouble: c_type = Number; break;
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case PIVariant::pivString: c_type = String; break;
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default: c_type = Invalid; break;
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}
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}
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void PIJSON::clear() {
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c_type = Invalid;
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c_value = PIVariant();
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c_name.clear();
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c_object.clear();
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c_array.clear();
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}
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int PIJSON::size() const {
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if (!isArray())
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return 0;
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return c_array.size_s();
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}
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bool PIJSON::contains(const PIString & key) const {
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if (!isObject()) return false;
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return c_object.contains(key);
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}
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void PIJSON::resize(int new_size) {
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c_array.resize(new_size);
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c_type = Array;
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}
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const PIJSON & PIJSON::operator[](int index) const {
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if (!isArray())
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return nullEntry();
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return c_array[index];
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}
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PIJSON & PIJSON::operator[](int index) {
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c_type = Array;
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PIJSON & ret(c_array[index]);
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return ret;
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}
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PIJSON & PIJSON::operator=(const PIJSON & v) {
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c_type = v.c_type;
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c_value = v.c_value;
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c_object = v.c_object;
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c_array = v.c_array;
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return *this;
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}
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PIJSON PIJSON::operator[](const PIString & key) const {
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if (!isObject())
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return nullEntry();
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if (!c_object.contains(key))
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return nullEntry();
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return c_object.value(key);
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}
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PIJSON & PIJSON::operator[](const PIString & key) {
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c_type = Object;
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PIJSON & ret(c_object[key]);
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ret.c_name = key;
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return ret;
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}
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PIString PIJSON::toJSON() const {
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PIString ret;
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print(ret, *this, "", true);
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return ret;
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}
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PIJSON PIJSON::fromJSON(PIString str) {
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return parseValue(str);
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}
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PIJSON & PIJSON::nullEntry() {
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static PIJSON ret;
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ret.clear();
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return ret;
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}
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PIString PIJSON::parseName(PIString & s) {
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//piCout << "\n\n\n parseName" << s;
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PIString ret;
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ret = s.takeRange('"', '"');
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s.trim();
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if (s.isEmpty()) return PIString();
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if (s[0] != ':') return PIString();
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s.remove(0).trim();
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return PIJSON::stringUnmask(ret);
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}
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PIJSON PIJSON::parseValue(PIString & s) {
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PIJSON ret;
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//piCout << "\n\n\n parseValue" << s;
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s.trim();
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if (s.isEmpty()) return ret;
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if (s[0] == '{')
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ret = parseObject(s.takeRange('{', '}'));
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else if (s[0] == '[')
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ret = parseArray(s.takeRange('[', ']'));
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else {
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s.trim();
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if (s.startsWith('"')) {
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ret.c_type = PIJSON::String;
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ret.c_value = PIJSON::stringUnmask(s.takeRange('"', '"'));
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} else {
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PIString value;
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int ind = s.find(',');
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if (ind >= 0) {
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value = s.takeLeft(ind).trim().toLowerCase();
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} else {
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value = s;
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s.clear();
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}
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//piCout << "\n\n\n parseValue value = \"" << value << "\"";
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if (value == "null") {
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ret.c_type = PIJSON::Null;
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} else if (value == "true") {
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ret.c_type = PIJSON::Boolean;
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ret.c_value = true;
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} else if (value == "false") {
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ret.c_type = PIJSON::Boolean;
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ret.c_value = false;
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} else {
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ret.c_type = PIJSON::Number;
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ret.c_value = value;
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}
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}
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}
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return ret;
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}
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PIJSON PIJSON::parseObject(PIString s) {
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//piCout << "\n\n\n parseObject" << s;
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PIJSON ret;
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ret.c_type = PIJSON::Object;
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while (s.isNotEmpty()) {
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PIString name = PIJSON::stringUnmask(parseName(s));
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PIJSON value = parseValue(s);
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auto & child(ret.c_object[name]);
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child = value;
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child.c_name = name;
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s.trim();
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if (s.isEmpty()) break;
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if (s[0] != ',') break;
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s.remove(0);
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}
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return ret;
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}
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PIJSON PIJSON::parseArray(PIString s) {
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//piCout << "\n\n\n parseArray" << s;
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PIJSON ret;
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ret.c_type = PIJSON::Array;
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while (s.isNotEmpty()) {
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PIJSON value = parseValue(s);
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ret.c_array << value;
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s.trim();
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if (s.isEmpty()) break;
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if (s[0] != ',') break;
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s.remove(0);
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}
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return ret;
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}
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PIString PIJSON::stringMask(const PIString & s) {
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PIString ret;
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for (auto c: s) {
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if (!c.isAscii()) {
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ret += "\\u" + PIString::fromNumber(c.unicode16Code(), 16).expandLeftTo(4, '0');
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} else {
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char ca = c.toAscii();
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switch (ca) {
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case '"' : ret += "\\\""; break;
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case '\\': ret += "\\\\"; break;
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case '/' : ret += "\\/" ; break;
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case '\b': ret += "\\b" ; break;
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case '\f': ret += "\\f" ; break;
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case '\n': ret += "\\n" ; break;
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case '\r': ret += "\\r" ; break;
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case '\t': ret += "\\t" ; break;
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default: ret += ca;
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}
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}
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}
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return ret;
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}
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PIString PIJSON::stringUnmask(const PIString & s) {
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PIString ret;
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for (int i = 0; i < s.size_s(); ++i) {
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char ca = s[i].toAscii();
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if (ca == '\\') {
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if (i == s.size_s() - 1) continue;
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++i;
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char na = s[i].toAscii();
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switch (na) {
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case '"' : ret += '\"'; break;
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case '\\': ret += '\\'; break;
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case '/' : ret += '/' ; break;
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case 'b' : ret += '\b'; break;
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case 'f' : ret += '\f'; break;
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case 'n' : ret += '\n'; break;
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case 'r' : ret += '\r'; break;
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case 't' : ret += '\t'; break;
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case 'u' :
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ret += PIChar(s.mid(i + 1, 4).toUShort(16));
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i += 4;
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break;
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default: break;
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}
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} else {
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ret += s[i];
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}
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}
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return ret;
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}
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void PIJSON::print(PIString & s, const PIJSON & v, PIString tab, bool transform, bool comma) {
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s += tab;
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/*
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switch (v.c_type) {
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case JSONEntry::Invalid: s << "(Invalid)"; break;
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case JSONEntry::Null: s << "(Null)"; break;
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case JSONEntry::Boolean: s << "(Boolean)"; break;
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case JSONEntry::Number: s << "(Number)"; break;
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case JSONEntry::String: s << "(String)"; break;
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case JSONEntry::Object: s << "(Object)"; break;
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case JSONEntry::Array: s << "(Array)"; break;
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}
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*/
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if (v.name().isNotEmpty()) s += '"' + (transform ? stringMask(v.name()) : v.name()) + "\": ";
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switch (v.c_type) {
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case PIJSON::Invalid: break;
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case PIJSON::Null: s += "null"; break;
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case PIJSON::Boolean: s += PIString::fromBool(v.c_value.toBool()); break;
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case PIJSON::Number: s += v.c_value.toString(); break;
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case PIJSON::String: s += '"' + (transform ? stringMask(v.c_value.toString()) : v.c_value.toString()) + '"'; break;
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case PIJSON::Object:
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s += "{\n";
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{
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PIString ntab = tab + " ";
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auto it = v.c_object.makeIterator();
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int cnt = 0;
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while (it.next())
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print(s, it.value(), ntab, transform, ++cnt < v.c_object.size_s());
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}
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s += tab + "}";
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break;
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case PIJSON::Array:
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s += "[\n";
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{
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PIString ntab = tab + " ";
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for (int i = 0; i < v.c_array.size_s(); ++i)
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print(s, v.c_array[i], ntab, transform, i < v.c_array.size_s() - 1);
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}
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s += tab + "]";
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break;
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}
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if (comma) s += ',';
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s += "\n";
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}
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122
libs/main/core/pijson.h
Normal file
122
libs/main/core/pijson.h
Normal file
@@ -0,0 +1,122 @@
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/*! \file pijson.h
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* \ingroup Core
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* \brief
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* \~english JSON class
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* \~russian Класс JSON
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*/
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/*
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PIP - Platform Independent Primitives
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JSON class
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Ivan Pelipenko peri4ko@yandex.ru
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This program is free software: you can redistribute it and/or modify
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||||
it under the terms of the GNU Lesser General Public License as published by
|
||||
the Free Software Foundation, either version 3 of the License, or
|
||||
(at your option) any later version.
|
||||
|
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This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU Lesser General Public License for more details.
|
||||
|
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You should have received a copy of the GNU Lesser General Public License
|
||||
along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef PIJSON_H
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#define PIJSON_H
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#include "pivariant.h"
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//! \ingroup Core
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//! \~\brief
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//! \~english JSON class.
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//! \~russian Класс JSON.
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class PIP_EXPORT PIJSON {
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friend PICout operator <<(PICout s, const PIJSON & v);
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public:
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enum Type {
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Invalid,
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Null,
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Boolean,
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Number,
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String,
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Object,
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Array
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};
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enum PrintType {
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Compact,
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Tree
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};
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PIJSON() {}
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PIJSON(const PIJSON & o) = default;
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static PIJSON newObject();
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static PIJSON newArray();
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const PIString & name() const {return c_name;}
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const PIVector<PIJSON> & array() const {return c_array;}
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const PIMap<PIString, PIJSON> & object() const {return c_object;}
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const PIVariant & value() const {return c_value;}
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bool toBool() const {return c_value.toBool();}
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int toInt() const {return c_value.toInt();}
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double toDouble() const {return c_value.toDouble();}
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PIString toString() const {return c_value.toString();}
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Type type() const {return c_type;}
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bool isValid() const {return c_type != Invalid;}
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bool isObject() const {return c_type == Object;}
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bool isArray() const {return c_type == Array;}
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void setValue(const PIVariant & v);
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void clear();
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int size() const;
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bool contains(const PIString & key) const;
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void resize(int new_size);
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const PIJSON & operator[](int index) const;
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PIJSON & operator[](int index);
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PIJSON & operator=(const PIVariant & v) {setValue(v); return *this;}
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PIJSON & operator=(const PIJSON & v);
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PIJSON operator[](const PIString & key) const;
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PIJSON & operator[](const PIString & key);
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PIJSON operator[](const char * key) const {return (*this)[PIString::fromUTF8(key)];}
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PIJSON & operator[](const char * key) {return (*this)[PIString::fromUTF8(key)];}
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PIString toJSON() const;
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static PIJSON fromJSON(PIString str);
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private:
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static PIJSON & nullEntry();
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static PIString parseName(PIString & s);
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static PIJSON parseValue(PIString & s);
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static PIJSON parseObject(PIString s);
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static PIJSON parseArray(PIString s);
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static PIString stringMask(const PIString & s);;
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static PIString stringUnmask(const PIString & s);;
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static void print(PIString & s, const PIJSON & v, PIString tab, bool transform = false, bool comma = false);
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PIString c_name;
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PIVariant c_value;
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PIVector<PIJSON> c_array;
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PIMap<PIString, PIJSON> c_object;
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Type c_type = Invalid;
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};
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||||
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//! \relatesalso PICout
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//! \~english Output operator to \a PICout.
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//! \~russian Оператор вывода в \a PICout.
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inline PICout operator <<(PICout s, const PIJSON & v) {
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s.space();
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s.saveAndSetControls(0);
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PIString str;
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PIJSON::print(str, v, "");
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s << str;
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s.restoreControls();
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return s;
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}
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||||
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#endif // PICONSTCHARS_H
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217
main.cpp
217
main.cpp
@@ -2,178 +2,61 @@
|
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#include "piiostream.h"
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#include "pibytearray.h"
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#include "pimathbase.h"
|
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#include "pijson.h"
|
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using namespace PICoutManipulators;
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|
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template <typename T>
|
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T toDecimal(const PIString & s) {
|
||||
int part = 0, exp = 0;
|
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bool negative = false, negative_exp = false, err = false, has_digit = false;
|
||||
T ret = 0., frac = 0., frac_delim = 1.;
|
||||
for (const PIChar pc: s) {
|
||||
char c = pc.toAscii();
|
||||
switch (part) {
|
||||
case 0: // sign
|
||||
if (pc.isSpace()) continue;
|
||||
if (c >= '0' && c <= '9') {
|
||||
has_digit = true;
|
||||
ret = c - '0';
|
||||
part = 1;
|
||||
continue;
|
||||
}
|
||||
if (c == '+') {
|
||||
part = 1;
|
||||
continue;
|
||||
}
|
||||
if (c == '-') {
|
||||
negative = true;
|
||||
part = 1;
|
||||
continue;
|
||||
}
|
||||
if (c == '.' || c == ',') {
|
||||
part = 2;
|
||||
continue;
|
||||
}
|
||||
err = true;
|
||||
break;
|
||||
case 1: // integer
|
||||
if (c >= '0' && c <= '9') {
|
||||
has_digit = true;
|
||||
ret = ret * 10 + (c - '0');
|
||||
continue;
|
||||
}
|
||||
if (c == '.' || c == ',') {
|
||||
part = 2;
|
||||
continue;
|
||||
}
|
||||
if ((c == 'e' || c == 'E') && has_digit) {
|
||||
part = 3;
|
||||
continue;
|
||||
}
|
||||
err = true;
|
||||
break;
|
||||
case 2: // fractional
|
||||
if (c >= '0' && c <= '9') {
|
||||
has_digit = true;
|
||||
frac = frac * 10 + (c - '0');
|
||||
frac_delim *= 10.;
|
||||
//piCout << frac << frac_delim;
|
||||
//printf("%.20f %.20f\n", frac, T(c - '0') / frac_delim);
|
||||
continue;
|
||||
}
|
||||
if ((c == 'e' || c == 'E') && has_digit) {
|
||||
part = 3;
|
||||
continue;
|
||||
}
|
||||
err = true;
|
||||
break;
|
||||
case 3: // exponent with sign
|
||||
if (c == '+') {
|
||||
part = 4;
|
||||
continue;
|
||||
}
|
||||
if (c == '-') {
|
||||
negative_exp = true;
|
||||
part = 4;
|
||||
continue;
|
||||
}
|
||||
case 4: // exponent
|
||||
if (c >= '0' && c <= '9') {
|
||||
exp = (exp * 10) + (c - '0');
|
||||
continue;
|
||||
}
|
||||
err = true;
|
||||
break;
|
||||
}
|
||||
if (err) break;
|
||||
}
|
||||
frac /= frac_delim;
|
||||
ret += frac;
|
||||
if (negative && has_digit) ret = -ret;
|
||||
if (exp > 0) {
|
||||
if (negative_exp) ret /= pow10((T)exp);
|
||||
else ret *= pow10((T)exp);
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
typedef PIMap<PIString, PIVariant> PIVariantMap;
|
||||
typedef PIVector<PIVariant> PIVariantVector;
|
||||
|
||||
REGISTER_VARIANT(PIVariantMap);
|
||||
REGISTER_VARIANT(PIVariantVector);
|
||||
|
||||
const char J[] =
|
||||
"[ \n"
|
||||
"{ \n"
|
||||
" \"idFligth\":\"456123\", \n"
|
||||
" \"FligthPath\": \"d:/orders/nicirt/BSK-52(BBR)/219031.001/EBN-NM-BBR.IMG\",\n"
|
||||
" \"FligthDataPath\": \"\", \n"
|
||||
" \"Passport\": \n"
|
||||
" { \n"
|
||||
" \"id\": \"\", \n"
|
||||
" \"TypePlane\": \"\", \n"
|
||||
" \"FA_PLANEBORT\": \"Ka52-10\" \n"
|
||||
" } \n"
|
||||
" }, [1.1,2,3,4,{\"a\":null},{\"bool\":true,\"bool2\":false}] \n"
|
||||
"] \n"
|
||||
;
|
||||
|
||||
inline void test(const PIString & s) {
|
||||
double av = atof(s.dataAscii());
|
||||
double v = toDecimal<double>(s);
|
||||
printf("\n");
|
||||
piCout << s << "=" << v << av;
|
||||
printf("atof = %.20f\n", av);
|
||||
printf(" PIP = %.20f\n", v);
|
||||
}
|
||||
|
||||
int main(int argc, char * argv[]) {
|
||||
/*test(" 123 ");
|
||||
test("\n123 ");
|
||||
test("\t123 ");
|
||||
test(" +123 ");
|
||||
test(" ++123 ");
|
||||
test(" + 123 ");
|
||||
test(" -123 ");
|
||||
test(" --123 ");
|
||||
test(" - 123 ");
|
||||
test("123.1");
|
||||
test("123 .1");
|
||||
test("123 . 1");
|
||||
test("123.+1");
|
||||
test("123.-1");
|
||||
test("123E2");
|
||||
test("123E+2");
|
||||
test("123E +2");
|
||||
test("123E+ 2");
|
||||
test("123E + 2");
|
||||
test("123 E+2");
|
||||
test("123 E +2");
|
||||
test("123 E+ 2");
|
||||
test("123 E + 2");
|
||||
test("123E+2.5");
|
||||
test("123.4E+2");
|
||||
test("123.4.5E+2");
|
||||
test("123EE+2");
|
||||
test("123e+2");
|
||||
test("123e++2");
|
||||
test("E+2");
|
||||
test("1E+2");
|
||||
test("1.E+2");
|
||||
test(".E+2");
|
||||
test(".1E-2");
|
||||
test("+E2");
|
||||
test("nan");
|
||||
test("inf");*/
|
||||
test("-");
|
||||
test("-0");
|
||||
test("-.");
|
||||
test("-.0");
|
||||
test(".23456123456789987654");
|
||||
test("-E+100");
|
||||
|
||||
return 0;
|
||||
|
||||
PITimeMeasurer tm;
|
||||
PIString s("1.23456789");
|
||||
int cnt = 10000000;
|
||||
int el_o = 0, el_n = 0;
|
||||
double v = 0.;
|
||||
NO_UNUSED(v);
|
||||
|
||||
tm.reset();
|
||||
piForTimes (cnt) {
|
||||
v = s.toDouble();
|
||||
}
|
||||
el_o = tm.elapsed_u();
|
||||
piCout << v << el_o;
|
||||
|
||||
tm.reset();
|
||||
piForTimes (cnt) {
|
||||
v = toDecimal<double>(s);
|
||||
}
|
||||
el_n = tm.elapsed_u();
|
||||
piCout << v << el_n;
|
||||
|
||||
piCout << (double)el_o / el_n;
|
||||
PIString s;
|
||||
s = PIString::fromUTF8(J).trim();
|
||||
s = PIString::fromUTF8("{\"st\\u0426r\":\"\\\\ \\\" \\u0425\\u0430\\n\"}");
|
||||
//s = PIString::fromUTF8("{\"str\":\"Ха\"}");
|
||||
PIJSON json = PIJSON::fromJSON(s);
|
||||
piCout << json;
|
||||
piCout << json.toJSON();
|
||||
//json.resize(3);
|
||||
//json["0"].setValue(123);
|
||||
//json["1"].setValue("sec");
|
||||
//json["2"]["f"].setValue(true);
|
||||
//json["2"]["s"].setValue(-1);*/
|
||||
//json[0]["Passport"]["id"] = 0xFF;
|
||||
//piCout << json;
|
||||
json = PIJSON::newObject();
|
||||
json["num"] = 123;
|
||||
json["str__"] = PIString::fromUTF8("string русский ℃ 😆 ");
|
||||
json["obj"]["b"] = true;
|
||||
json["obj"]["i"] = -1;
|
||||
auto & arr(json["obj"]["arr"]);
|
||||
arr.resize(3);
|
||||
arr[0] = 10;
|
||||
arr[1] = 11.2E-1;
|
||||
arr[2] = "!!!";
|
||||
json["obj2"] = json["obj"];
|
||||
//piCout << json;
|
||||
piCout << json.toJSON();
|
||||
piCout << json["str__"].toString().toUTF8();
|
||||
return 0;
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user