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68 lines
1.8 KiB
68 lines
1.8 KiB
/*
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Part of WEBSERVER MODULE
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Copyright (C) 2016-2019 by Xose Pérez <xose dot perez at gmail dot com>
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Copyright (C) 2019-2022 by Maxim Prokhorov <prokhorov dot max at outlook dot com>
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*/
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#pragma once
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#include <ArduinoJson.h>
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#include <sys/pgmspace.h>
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#include "types.h"
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namespace ArduinoJson {
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namespace Internals {
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// ArduinoJson v5 view adapter; we can't force variant to not
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// buffer us until v6, but might as well make it aware of this type
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// (internals depend on JsonVariant asString, which works through normal string functions)
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template <>
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struct StringTraits<::espurna::StringView, void> {
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static bool equals(::espurna::StringView lhs, const char* rhs) {
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return lhs == rhs;
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}
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static bool is_null(::espurna::StringView string) {
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return string.length() == 0;
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}
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using duplicate_t = const char*;
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template <typename Buffer>
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static const char* duplicate(::espurna::StringView string, Buffer* buffer) {
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if (string.length()) {
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const auto size = string.length();
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auto* dup = reinterpret_cast<char*>(buffer->alloc(size));
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if (dup) {
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memcpy_P(dup, string.begin(), size);
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dup[size] = '\0';
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return dup;
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}
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}
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return nullptr;
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}
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// technically, we could've had append w/ strings only
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// but, this also means append of char, which we could not do
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static const bool has_append = false;
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static const bool has_equals = true;
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static const bool should_duplicate = true;
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};
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template <>
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struct ValueSaver<::espurna::StringView> {
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template <typename Destination>
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static bool save(JsonBuffer*, Destination& dst, ::espurna::StringView src) {
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dst = src;
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return true;
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}
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};
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} // namespace Internals
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} // namespace ArduinoJson
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