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-rw-r--r--lib/ClockTAI.cpp422
-rw-r--r--lib/ClockTAI.h61
-rw-r--r--lib/Json.cpp122
-rw-r--r--lib/Json.h63
-rw-r--r--lib/RemoteControl.cpp57
-rw-r--r--lib/RemoteControl.h12
-rw-r--r--lib/charset/README2
-rw-r--r--lib/charset/utf8.h80
-rw-r--r--lib/charset/utf8/checked.h176
-rw-r--r--lib/charset/utf8/core.h275
-rw-r--r--lib/charset/utf8/cpp11.h70
-rw-r--r--lib/charset/utf8/cpp17.h96
-rw-r--r--lib/charset/utf8/cpp20.h124
-rw-r--r--lib/charset/utf8/unchecked.h163
14 files changed, 1334 insertions, 389 deletions
diff --git a/lib/ClockTAI.cpp b/lib/ClockTAI.cpp
index a244aba..c32c58d 100644
--- a/lib/ClockTAI.cpp
+++ b/lib/ClockTAI.cpp
@@ -3,7 +3,7 @@
2011, 2012 Her Majesty the Queen in Right of Canada (Communications
Research Center Canada)
- Copyright (C) 2019
+ Copyright (C) 2024
Matthias P. Braendli, matthias.braendli@mpb.li
http://www.opendigitalradio.org
@@ -33,6 +33,7 @@
* ClockTAI.cpp Log.cpp RemoteControl.cpp -lboost_system -o taitest && ./taitest
*/
+#include <iterator>
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
@@ -61,22 +62,15 @@
using namespace std;
-#ifdef DOWNLOADED_IN_THE_PAST_TEST
-static bool wait_longer = true;
-#endif
-
constexpr int refresh_retry_interval_hours = 1;
// Offset between NTP time and POSIX time:
// timestamp_unix = timestamp_ntp - NTP_UNIX_OFFSET
constexpr int64_t NTP_UNIX_OFFSET = 2208988800L;
-constexpr int64_t MONTH = 3600 * 24 * 30;
-
-// leap seconds insertion bulletin is available from the IETF and in the TZ
-// distribution
-static array<const char*, 2> default_tai_urls = {
- "https://www.ietf.org/timezones/data/leap-seconds.list",
+// leap seconds insertion bulletin was previously available from the IETF and in the TZ
+// distribution, but in late 2023 IETF stopped serving the file.
+static array<const char*, 1> default_tai_urls = {
"https://raw.githubusercontent.com/eggert/tz/master/leap-seconds.list",
};
@@ -84,6 +78,32 @@ static array<const char*, 2> default_tai_urls = {
// /var/tmp "must not be deleted when the system is booted."
static const char *tai_cache_location = "/var/tmp/odr-leap-seconds.cache";
+static string join_string_with_pipe(const vector<string>& vec)
+{
+ stringstream ss;
+ for (auto it = vec.cbegin(); it != vec.cend(); ++it) {
+ ss << *it;
+ if (it + 1 != vec.cend()) {
+ ss << "|";
+ }
+ }
+ return ss.str();
+}
+
+static vector<string> split_pipe_separated_string(const string& s)
+{
+ stringstream ss;
+ ss << s;
+
+ string elem;
+ vector<string> components;
+ while (getline(ss, elem, '|')) {
+ components.push_back(elem);
+ }
+ return components;
+}
+
+
// read TAI offset from a valid bulletin in IETF format
static int parse_ietf_bulletin(const std::string& bulletin)
{
@@ -146,20 +166,31 @@ static int parse_ietf_bulletin(const std::string& bulletin)
throw runtime_error("No data in TAI bulletin");
}
+ // With the current evolution of the offset, we're probably going
+ // to reach 500 long after DAB gets replaced by another standard.
+ // Or maybe leap seconds get abolished first...
+ if (tai_utc_offset < 0 or tai_utc_offset > 500) {
+ throw runtime_error("Unreasonable TAI-UTC offset calculated");
+ }
+
return tai_utc_offset;
}
+int64_t BulletinState::expires_in() const {
+ time_t now = time(nullptr);
+ return expires_at - now;
+}
-struct bulletin_state {
- bool valid = false;
- int64_t expiry = 0;
- int offset = 0;
+bool BulletinState::usable() const {
+ return valid and expires_in() > 0;
+}
- bool usable() const { return valid and expiry > 0; }
- bool expires_soon() const { return usable() and expiry < 1 * MONTH; }
-};
+bool BulletinState::expires_soon() const {
+ constexpr int64_t MONTH = 3600 * 24 * 30;
+ return usable() and expires_in() < 1 * MONTH;
+}
-static bulletin_state parse_bulletin(const string& bulletin)
+BulletinState Bulletin::state() const
{
// The bulletin contains one line that specifies an expiration date
// in NTP time. If that point in time is in the future, we consider
@@ -168,11 +199,22 @@ static bulletin_state parse_bulletin(const string& bulletin)
// The entry looks like this:
//#@ 3707596800
- bulletin_state ret;
+ BulletinState ret;
- std::regex regex_expiration(R"(#@\s+([0-9]+))");
+ if (std::holds_alternative<Bulletin::OverrideData>(bulletin_or_override)) {
+ const auto& od = std::get<Bulletin::OverrideData>(bulletin_or_override);
+ ret.offset = od.offset;
+ ret.expires_at = od.expires_at;
+ ret.valid = true;
+#ifdef TAI_TEST
+ etiLog.level(debug) << "state() from Override!";
+#endif
+ return ret;
+ }
- time_t now = time(nullptr);
+ const auto& bulletin = std::get<string>(bulletin_or_override);
+
+ std::regex regex_expiration(R"(#@\s+([0-9]+))");
stringstream ss(bulletin);
@@ -190,20 +232,29 @@ static bulletin_state parse_bulletin(const string& bulletin)
const int64_t expiry_unix = std::stoll(expiry_data_str) - NTP_UNIX_OFFSET;
#ifdef TAI_TEST
- etiLog.level(info) << "Bulletin expires in " << expiry_unix - now;
+ {
+ // Do not use `now` for anything else but debugging, otherwise it
+ // breaks the cache.
+ time_t now = time(nullptr);
+ etiLog.level(debug) << "Bulletin " <<
+ get_source() << " expires in " << expiry_unix - now;
+ }
#endif
- ret.expiry = expiry_unix - now;
+ ret.expires_at = expiry_unix;
ret.offset = parse_ietf_bulletin(bulletin);
ret.valid = true;
}
catch (const invalid_argument& e) {
- etiLog.level(warn) << "Could not parse bulletin: " << e.what();
+ etiLog.level(warn) << "Could not parse bulletin from " <<
+ get_source() << ": " << e.what();
}
catch (const out_of_range&) {
- etiLog.level(warn) << "Parse bulletin: conversion is out of range";
+ etiLog.level(warn) << "Parse bulletin from " <<
+ get_source() << ": conversion is out of range";
}
catch (const runtime_error& e) {
- etiLog.level(warn) << "Parse bulletin: " << e.what();
+ etiLog.level(warn) << "Parse bulletin from " <<
+ get_source() << ": " << e.what();
}
break;
}
@@ -224,9 +275,9 @@ static size_t fill_bulletin(char *ptr, size_t size, size_t nmemb, void *ctx)
return len;
}
-static string download_tai_utc_bulletin(const char* url)
+Bulletin Bulletin::download_from_url(const char* url)
{
- stringstream bulletin;
+ stringstream bulletin_data;
#ifdef HAVE_CURL
CURL *curl;
@@ -238,7 +289,7 @@ static string download_tai_utc_bulletin(const char* url)
/* Tell libcurl to follow redirection */
curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1L);
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, fill_bulletin);
- curl_easy_setopt(curl, CURLOPT_WRITEDATA, &bulletin);
+ curl_easy_setopt(curl, CURLOPT_WRITEDATA, &bulletin_data);
res = curl_easy_perform(curl);
/* always cleanup ! */
@@ -249,19 +300,39 @@ static string download_tai_utc_bulletin(const char* url)
string(curl_easy_strerror(res)));
}
}
- return bulletin.str();
+ Bulletin bulletin;
+ bulletin.source = url;
+ bulletin.bulletin_or_override = bulletin_data.str();
+ return bulletin;
#else
throw runtime_error("Cannot download TAI Clock information without cURL");
#endif // HAVE_CURL
}
-static string load_bulletin_from_file(const char* cache_filename)
+Bulletin Bulletin::create_with_fixed_offset(int offset)
{
+ Bulletin bulletin;
+ bulletin.source = "manual override";
+
+ OverrideData od;
+ od.offset = offset;
+ time_t now = time(nullptr);
+ // 10 years is probably equivalent to infinity in this case...
+ od.expires_at = now + 10L * 365 * 24 * 3600;
+ bulletin.bulletin_or_override = od;
+ return bulletin;
+}
+
+Bulletin Bulletin::load_from_file(const char* cache_filename)
+{
+ Bulletin bulletin;
+ bulletin.source = cache_filename;
+
int fd = open(cache_filename, O_RDWR); // lockf requires O_RDWR
if (fd == -1) {
etiLog.level(error) << "TAI-UTC bulletin open cache for reading: " <<
strerror(errno);
- return "";
+ return bulletin;
}
lseek(fd, 0, SEEK_SET);
@@ -280,7 +351,7 @@ static string load_bulletin_from_file(const char* cache_filename)
close(fd);
etiLog.level(error) << "TAI-UTC bulletin read cache: " <<
strerror(errno);
- return "";
+ return bulletin;
}
copy(buf.data(), buf.data() + ret, back_inserter(new_bulletin_data));
@@ -288,7 +359,7 @@ static string load_bulletin_from_file(const char* cache_filename)
close(fd);
- return string{new_bulletin_data.data(), new_bulletin_data.size()};
+ bulletin.bulletin_or_override = string{new_bulletin_data.data(), new_bulletin_data.size()};
}
else {
etiLog.level(error) <<
@@ -296,13 +367,25 @@ static string load_bulletin_from_file(const char* cache_filename)
strerror(errno);
close(fd);
}
- return "";
+ return bulletin;
+}
+
+void Bulletin::clear_expiry_if_overridden()
+{
+ if (std::holds_alternative<Bulletin::OverrideData>(bulletin_or_override)) {
+ auto& od = std::get<Bulletin::OverrideData>(bulletin_or_override);
+ time_t now = time(nullptr);
+ od.expires_at = now;
+ }
}
ClockTAI::ClockTAI(const std::vector<std::string>& bulletin_urls) :
RemoteControllable("clocktai")
{
+ RC_ADD_PARAMETER(tai_utc_offset, "TAI-UTC offset");
RC_ADD_PARAMETER(expiry, "Number of seconds until TAI Bulletin expires");
+ RC_ADD_PARAMETER(expires_at, "UNIX timestamp when TAI Bulletin expires");
+ RC_ADD_PARAMETER(url, "URLs used to fetch the bulletin, separated by pipes");
if (bulletin_urls.empty()) {
etiLog.level(debug) << "Initialising default TAI Bulletin URLs";
@@ -315,138 +398,119 @@ ClockTAI::ClockTAI(const std::vector<std::string>& bulletin_urls) :
m_bulletin_urls = bulletin_urls;
}
- for (const auto& url : m_bulletin_urls) {
- etiLog.level(info) << "TAI Bulletin URL: '" << url << "'";
- }
+ etiLog.level(debug) << "ClockTAI uses bulletin URL: '" << join_string_with_pipe(m_bulletin_urls) << "'";
}
-int ClockTAI::get_valid_offset()
+BulletinState ClockTAI::get_valid_offset()
{
- int offset = 0;
- bool offset_valid = false;
- bool refresh_m_bulletin = false;
-
std::unique_lock<std::mutex> lock(m_data_mutex);
- const auto state = parse_bulletin(m_bulletin);
- if (state.usable()) {
+ const auto state = m_bulletin.state();
#if TAI_TEST
- etiLog.level(info) << "Bulletin already valid";
+ etiLog.level(info) << "TAI get_valid_offset STEP 1 ";
+ etiLog.level(info) << " " << m_bulletin.get_source() << " " <<
+ state.valid << " " << state.usable() << " " << state.expires_in();
#endif
- offset = state.offset;
- offset_valid = true;
-
- refresh_m_bulletin = state.expires_soon();
- }
- else {
- refresh_m_bulletin = true;
+ if (state.usable()) {
+ return state;
}
- if (refresh_m_bulletin) {
- const auto cache_bulletin = load_bulletin_from_file(tai_cache_location);
#if TAI_TEST
- etiLog.level(info) << "Loaded cache bulletin with " <<
- std::count_if(cache_bulletin.cbegin(), cache_bulletin.cend(),
- [](const char c){ return c == '\n'; }) << " lines";
+ etiLog.level(info) << "TAI get_valid_offset STEP 2";
#endif
- const auto cache_state = parse_bulletin(cache_bulletin);
+ const auto cache_bulletin = Bulletin::load_from_file(tai_cache_location);
+ const auto cache_state = cache_bulletin.state();
+ if (cache_state.usable()) {
+ m_bulletin = cache_bulletin;
+#if TAI_TEST
+ etiLog.level(info) << "TAI get_valid_offset STEP 2 take cache";
+#endif
+ return cache_state;
+ }
- if (cache_state.usable() and not cache_state.expires_soon()) {
- m_bulletin = cache_bulletin;
- offset = cache_state.offset;
- offset_valid = true;
#if TAI_TEST
- etiLog.level(info) << "Bulletin from cache valid with offset=" << offset;
+ etiLog.level(info) << "TAI get_valid_offset STEP 3";
#endif
- }
- else {
- for (const auto& url : m_bulletin_urls) {
- try {
+
+ vector<Bulletin> bulletins({m_bulletin, cache_bulletin});
+
+ for (const auto& url : m_bulletin_urls) {
+ try {
#if TAI_TEST
- etiLog.level(info) << "Load bulletin from " << url;
+ etiLog.level(info) << "Load bulletin from " << url;
#endif
- const auto new_bulletin = download_tai_utc_bulletin(url.c_str());
- const auto new_state = parse_bulletin(new_bulletin);
- if (new_state.usable()) {
- m_bulletin = new_bulletin;
- offset = new_state.offset;
- offset_valid = true;
-
- etiLog.level(debug) << "Loaded valid TAI Bulletin from " <<
- url << " giving offset=" << offset;
- }
- else {
- etiLog.level(debug) << "Skipping invalid TAI bulletin from "
- << url;
- }
- }
- catch (const runtime_error& e) {
- etiLog.level(warn) <<
- "TAI-UTC offset could not be retrieved from " <<
- url << " : " << e.what();
- }
+ const auto new_bulletin = Bulletin::download_from_url(url.c_str());
+ bulletins.push_back(new_bulletin);
- if (offset_valid) {
- update_cache(tai_cache_location);
- break;
- }
+ const auto new_state = new_bulletin.state();
+ if (new_state.usable()) {
+ m_bulletin = new_bulletin;
+ new_bulletin.store_to_cache(tai_cache_location);
+
+ etiLog.level(debug) << "Loaded valid TAI Bulletin from " <<
+ url << " giving offset=" << new_state.offset;
+ return new_state;
+ }
+ else {
+ etiLog.level(debug) << "Skipping invalid TAI bulletin from "
+ << url;
}
}
+ catch (const runtime_error& e) {
+ etiLog.level(warn) <<
+ "TAI-UTC offset could not be retrieved from " <<
+ url << " : " << e.what();
+ }
}
- if (offset_valid) {
- // With the current evolution of the offset, we're probably going
- // to reach 500 long after DAB gets replaced by another standard.
- if (offset < 0 or offset > 500) {
- stringstream ss;
- ss << "TAI offset " << offset << " out of range";
- throw range_error(ss.str());
- }
+#if TAI_TEST
+ etiLog.level(info) << "TAI get_valid_offset STEP 4";
+#endif
- return offset;
- }
- else {
- // Try again later
- throw download_failed();
+ // Maybe we have a valid but expired bulletin available.
+ // Place bulletins with largest expiry first
+ std::sort(bulletins.begin(), bulletins.end(),
+ [](const Bulletin& a, const Bulletin& b) {
+ return a.state().expires_at > b.state().expires_at; });
+
+ for (const auto& bulletin : bulletins) {
+ const auto& state = bulletin.state();
+ if (state.valid) {
+ etiLog.level(warn) << "Taking TAI-UTC offset from expired bulletin from " <<
+ bulletin.get_source() << " : " << state.offset << "s expired " <<
+ state.expires_in() << "s ago";
+ m_bulletin = bulletin;
+ return state;
+ }
}
+
+ throw download_failed();
}
int ClockTAI::get_offset()
{
using namespace std::chrono;
- const auto time_now = system_clock::now();
+ const auto time_now = steady_clock::now();
std::unique_lock<std::mutex> lock(m_data_mutex);
- if (not m_offset_valid) {
-#ifdef DOWNLOADED_IN_THE_PAST_TEST
- // Assume we've downloaded it in the past:
-
- m_offset = 37; // Valid in early 2017
- m_offset_valid = true;
-
- // Simulate requiring a new download
- m_bulletin_refresh_time = time_now - hours(24 * 40);
-#else
+ if (not m_state.has_value()) {
// First time we run we must block until we know
// the offset
lock.unlock();
try {
- m_offset = get_valid_offset();
+ m_state = get_valid_offset();
}
catch (const download_failed&) {
throw runtime_error("Unable to download TAI bulletin");
}
lock.lock();
- m_offset_valid = true;
- m_bulletin_refresh_time = time_now;
-#endif
- etiLog.level(info) <<
- "Initialised TAI-UTC offset to " << m_offset << "s.";
+ m_state_last_updated = time_now;
+ etiLog.level(info) << "Initialised TAI-UTC offset to " << m_state->offset << "s.";
}
- if (m_bulletin_refresh_time + hours(1) < time_now) {
+ if (m_state_last_updated + hours(1) < time_now) {
// Once per hour, parse the bulletin again, and
// if necessary trigger a download.
// Leap seconds are announced several months in advance
@@ -457,23 +521,23 @@ int ClockTAI::get_offset()
switch (state) {
case future_status::ready:
try {
- m_offset = m_offset_future.get();
- m_offset_valid = true;
- m_bulletin_refresh_time = time_now;
+ m_state = m_offset_future.get();
+ m_state_last_updated = time_now;
etiLog.level(info) <<
- "Updated TAI-UTC offset to " << m_offset << "s.";
+ "Updated TAI-UTC offset to " << m_state->offset << "s.";
}
catch (const download_failed&) {
etiLog.level(warn) <<
"TAI-UTC download failed, will retry in " <<
refresh_retry_interval_hours << " hour(s)";
- m_bulletin_refresh_time += hours(refresh_retry_interval_hours);
- }
-#ifdef DOWNLOADED_IN_THE_PAST_TEST
- wait_longer = false;
+#if TAI_TEST
+ m_state_last_updated += seconds(11);
+#else
+ m_state_last_updated += hours(refresh_retry_interval_hours);
#endif
+ }
break;
case future_status::deferred:
@@ -493,7 +557,10 @@ int ClockTAI::get_offset()
}
}
- return m_offset;
+ if (m_state) {
+ return m_state->offset;
+ }
+ throw std::logic_error("ClockTAI: No valid m_state at end of get_offset()");
}
#if SUPPORT_SETTING_CLOCK_TAI
@@ -514,8 +581,13 @@ int ClockTAI::update_local_tai_clock(int offset)
}
#endif
-void ClockTAI::update_cache(const char* cache_filename)
+void Bulletin::store_to_cache(const char* cache_filename) const
{
+ if (not std::holds_alternative<string>(bulletin_or_override)) {
+ etiLog.level(error) << "ClockTAI: Cannot store an artificial bulletin to cache!";
+ }
+ const auto& bulletin = std::get<string>(bulletin_or_override);
+
int fd = open(cache_filename, O_RDWR | O_CREAT, 00664);
if (fd == -1) {
etiLog.level(error) <<
@@ -529,8 +601,8 @@ void ClockTAI::update_cache(const char* cache_filename)
ssize_t ret = lockf(fd, F_LOCK, 0);
if (ret == 0) {
// exclusive lock acquired
- const char *data = m_bulletin.data();
- size_t remaining = m_bulletin.size();
+ const char *data = bulletin.data();
+ size_t remaining = bulletin.size();
while (remaining > 0) {
ret = write(fd, data, remaining);
@@ -557,13 +629,35 @@ void ClockTAI::update_cache(const char* cache_filename)
}
}
-
void ClockTAI::set_parameter(const string& parameter, const string& value)
{
- if (parameter == "expiry") {
+ if (parameter == "expiry" or parameter == "expires_at") {
throw ParameterError("Parameter '" + parameter +
"' is read-only in controllable " + get_rc_name());
}
+ else if (parameter == "tai_utc_offset") {
+ const auto offset = std::stoi(value);
+ auto b = Bulletin::create_with_fixed_offset(offset);
+
+ etiLog.level(warn) << "ClockTAI: manually overriding UTC-TAI offset to " << offset;
+
+ std::unique_lock<std::mutex> lock(m_data_mutex);
+ m_bulletin = b;
+ m_state = b.state();
+ m_state_last_updated = chrono::steady_clock::now();
+ }
+ else if (parameter == "url") {
+ {
+ std::unique_lock<std::mutex> lock(m_data_mutex);
+ m_bulletin_urls = split_pipe_separated_string(value);
+ m_state_last_updated = chrono::steady_clock::time_point::min();
+
+ // Setting URL expires the bulletin, if it was manually overridden,
+ // so that the selection logic doesn't prefer it
+ m_bulletin.clear_expiry_if_overridden();
+ }
+ etiLog.level(info) << "ClockTAI: triggering a reload from URLs...";
+ }
else {
throw ParameterError("Parameter '" + parameter +
"' is not exported by controllable " + get_rc_name());
@@ -574,13 +668,22 @@ const string ClockTAI::get_parameter(const string& parameter) const
{
if (parameter == "expiry") {
std::unique_lock<std::mutex> lock(m_data_mutex);
- const int64_t expiry = parse_bulletin(m_bulletin).expiry;
- if (expiry > 0) {
- return to_string(expiry);
- }
- else {
- return "Bulletin expired or invalid!";
+ return to_string(m_bulletin.state().expires_in());
+ }
+ else if (parameter == "expires_at") {
+ std::unique_lock<std::mutex> lock(m_data_mutex);
+ return to_string(m_bulletin.state().expires_at);
+ }
+ else if (parameter == "tai_utc_offset") {
+ std::unique_lock<std::mutex> lock(m_data_mutex);
+ if (m_state) {
+ return to_string(m_state->offset);
}
+ throw ParameterError("Parameter '" + parameter +
+ "' has no current value" + get_rc_name());
+ }
+ else if (parameter == "url") {
+ return join_string_with_pipe(m_bulletin_urls);;
}
else {
throw ParameterError("Parameter '" + parameter +
@@ -588,6 +691,35 @@ const string ClockTAI::get_parameter(const string& parameter) const
}
}
+const json::map_t ClockTAI::get_all_values() const
+{
+ json::map_t stat;
+ std::unique_lock<std::mutex> lock(m_data_mutex);
+
+ const auto& state = m_bulletin.state();
+
+#if CLOCK_TAI
+ etiLog.level(debug) << "CALC FROM m_bulletin: " << state.valid << " " <<
+ state.offset << " " << state.expires_at << " -> " << state.expires_in();
+ etiLog.level(debug) << "CACHED IN m_state: " << m_state->valid << " " <<
+ m_state->offset << " " << m_state->expires_at << " -> " << m_state->expires_in();
+#endif
+
+ stat["tai_utc_offset"].v = state.offset;
+
+ stat["expiry"].v = state.expires_in(); // Might be negative when expired or 0 when invalid
+ if (state.valid) {
+ stat["expires_at"].v = state.expires_at;
+ }
+ else {
+ stat["expires_at"].v = nullopt;
+ }
+
+ stat["url"].v = join_string_with_pipe(m_bulletin_urls);
+
+ return stat;
+}
+
#if 0
// Example testing code
void debug_tai_clk()
diff --git a/lib/ClockTAI.h b/lib/ClockTAI.h
index 743cf68..8cd00e5 100644
--- a/lib/ClockTAI.h
+++ b/lib/ClockTAI.h
@@ -3,7 +3,7 @@
2011, 2012 Her Majesty the Queen in Right of Canada (Communications
Research Center Canada)
- Copyright (C) 2019
+ Copyright (C) 2024
Matthias P. Braendli, matthias.braendli@mpb.li
http://www.opendigitalradio.org
@@ -42,12 +42,49 @@
#include <mutex>
#include <string>
#include <vector>
+#include <optional>
+#include <variant>
#include "RemoteControl.h"
// EDI needs to know UTC-TAI, but doesn't need the CLOCK_TAI to be set.
// We can keep this code, maybe for future use
#define SUPPORT_SETTING_CLOCK_TAI 0
+struct BulletinState {
+ bool valid = false;
+ int64_t expires_at = 0;
+ int offset = 0;
+
+ int64_t expires_in() const;
+ bool usable() const;
+ bool expires_soon() const;
+};
+
+class Bulletin {
+ public:
+ static Bulletin download_from_url(const char *url);
+ static Bulletin create_with_fixed_offset(int offset);
+ static Bulletin load_from_file(const char *cache_filename);
+
+ void clear_expiry_if_overridden();
+
+ void store_to_cache(const char* cache_filename) const;
+
+ std::string get_source() const { return source; }
+ BulletinState state() const;
+ private:
+ // URL or file path from which the bulletin has been/will be loaded
+ std::string source;
+
+ struct OverrideData {
+ int offset = 0;
+ int expires_at = 0;
+ };
+ // string: A cache of the bulletin, or empty string if not loaded
+ // int: A manually overridden offset
+ std::variant<std::string, OverrideData> bulletin_or_override;
+};
+
/* Loads, parses and represents TAI-UTC offset information from the IETF bulletin */
class ClockTAI : public RemoteControllable {
public:
@@ -71,33 +108,31 @@ class ClockTAI : public RemoteControllable {
// download it, and calculate the TAI-UTC offset.
// Returns the offset or throws download_failed or a range_error
// if the offset is out of bounds.
- int get_valid_offset(void);
+ BulletinState get_valid_offset(void);
// Download of new bulletin is done asynchronously
- std::future<int> m_offset_future;
+ std::future<BulletinState> m_offset_future;
// Protect all data members, as RC functions are in another thread
mutable std::mutex m_data_mutex;
- // The currently used TAI-UTC offset, extracted from m_bulletin and cached here
- // to avoid having to parse the bulletin all the time
- int m_offset = 0;
- int m_offset_valid = false;
-
std::vector<std::string> m_bulletin_urls;
- std::string m_bulletin;
- std::chrono::system_clock::time_point m_bulletin_refresh_time;
-
- // Update the cache file with the current m_bulletin
- void update_cache(const char* cache_filename);
+ Bulletin m_bulletin;
+ // The currently used TAI-UTC offset, extracted the bulletin and cached
+ // here to avoid having to parse the bulletin all the time
+ std::optional<BulletinState> m_state;
+ std::chrono::steady_clock::time_point m_state_last_updated;
+ public:
/* Remote control */
virtual void set_parameter(const std::string& parameter,
const std::string& value);
/* Getting a parameter always returns a string. */
virtual const std::string get_parameter(const std::string& parameter) const;
+
+ virtual const json::map_t get_all_values() const;
};
diff --git a/lib/Json.cpp b/lib/Json.cpp
new file mode 100644
index 0000000..4dc2f25
--- /dev/null
+++ b/lib/Json.cpp
@@ -0,0 +1,122 @@
+/*
+ Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012
+ Her Majesty the Queen in Right of Canada (Communications Research
+ Center Canada)
+
+ Copyright (C) 2023
+ Matthias P. Braendli, matthias.braendli@mpb.li
+
+ http://www.opendigitalradio.org
+ */
+/*
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ 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 General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+#include <string>
+#include <iostream>
+#include <sstream>
+#include <iomanip>
+#include <string>
+#include <algorithm>
+
+#include "Json.h"
+
+namespace json {
+ static std::string escape_json(const std::string &s) {
+ std::ostringstream o;
+ for (auto c = s.cbegin(); c != s.cend(); c++) {
+ switch (*c) {
+ case '"': o << "\\\""; break;
+ case '\\': o << "\\\\"; break;
+ case '\b': o << "\\b"; break;
+ case '\f': o << "\\f"; break;
+ case '\n': o << "\\n"; break;
+ case '\r': o << "\\r"; break;
+ case '\t': o << "\\t"; break;
+ default:
+ if ('\x00' <= *c && *c <= '\x1f') {
+ o << "\\u"
+ << std::hex << std::setw(4) << std::setfill('0') << static_cast<int>(*c);
+ } else {
+ o << *c;
+ }
+ }
+ }
+ return o.str();
+ }
+
+ std::string map_to_json(const map_t& values) {
+ std::ostringstream ss;
+ ss << "{ ";
+ size_t ix = 0;
+ for (const auto& element : values) {
+ if (ix > 0) {
+ ss << ",";
+ }
+
+ ss << "\"" << escape_json(element.first) << "\": ";
+ ss << value_to_json(element.second);
+
+ ix++;
+ }
+ ss << " }";
+
+ return ss.str();
+ }
+
+ std::string value_to_json(const value_t& value)
+ {
+ std::ostringstream ss;
+
+ if (std::holds_alternative<std::string>(value.v)) {
+ ss << "\"" << escape_json(std::get<std::string>(value.v)) << "\"";
+ }
+ else if (std::holds_alternative<double>(value.v)) {
+ ss << std::fixed << std::get<double>(value.v);
+ }
+ else if (std::holds_alternative<ssize_t>(value.v)) {
+ ss << std::get<ssize_t>(value.v);
+ }
+ else if (std::holds_alternative<size_t>(value.v)) {
+ ss << std::get<size_t>(value.v);
+ }
+ else if (std::holds_alternative<bool>(value.v)) {
+ ss << (std::get<bool>(value.v) ? "true" : "false");
+ }
+ else if (std::holds_alternative<std::nullopt_t>(value.v)) {
+ ss << "null";
+ }
+ else if (std::holds_alternative<std::vector<json::value_t> >(value.v)) {
+ const auto& vec = std::get<std::vector<json::value_t> >(value.v);
+ ss << "[ ";
+ size_t list_ix = 0;
+ for (const auto& list_element : vec) {
+ if (list_ix > 0) {
+ ss << ",";
+ }
+ ss << value_to_json(list_element);
+ list_ix++;
+ }
+ ss << "]";
+ }
+ else if (std::holds_alternative<std::shared_ptr<json::map_t> >(value.v)) {
+ const map_t& v = *std::get<std::shared_ptr<json::map_t> >(value.v);
+ ss << map_to_json(v);
+ }
+ else {
+ throw std::logic_error("variant alternative not handled");
+ }
+
+ return ss.str();
+ }
+}
diff --git a/lib/Json.h b/lib/Json.h
new file mode 100644
index 0000000..65aa668
--- /dev/null
+++ b/lib/Json.h
@@ -0,0 +1,63 @@
+/*
+ Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012
+ Her Majesty the Queen in Right of Canada (Communications Research
+ Center Canada)
+
+ Copyright (C) 2023
+ Matthias P. Braendli, matthias.braendli@mpb.li
+
+ http://www.opendigitalradio.org
+
+ This module adds remote-control capability to some of the dabmux/dabmod modules.
+ */
+/*
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ 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 General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <vector>
+#include <memory>
+#include <optional>
+#include <stdexcept>
+#include <string>
+#include <unordered_map>
+#include <variant>
+
+namespace json {
+
+ // STL containers are not required to support incomplete types,
+ // hence the shared_ptr
+
+ struct value_t {
+ std::variant<
+ std::shared_ptr<std::unordered_map<std::string, value_t>>,
+ std::vector<value_t>,
+ std::string,
+ double,
+ size_t,
+ ssize_t,
+ bool,
+ std::nullopt_t> v;
+ };
+
+ using map_t = std::unordered_map<std::string, value_t>;
+
+ std::string map_to_json(const map_t& values);
+ std::string value_to_json(const value_t& value);
+}
diff --git a/lib/RemoteControl.cpp b/lib/RemoteControl.cpp
index 30dcb60..dca3373 100644
--- a/lib/RemoteControl.cpp
+++ b/lib/RemoteControl.cpp
@@ -25,6 +25,8 @@
#include <list>
#include <string>
#include <iostream>
+#include <sstream>
+#include <iomanip>
#include <string>
#include <algorithm>
@@ -102,6 +104,18 @@ std::list< std::vector<std::string> > RemoteControllers::get_param_list_values(c
return allparams;
}
+
+
+std::string RemoteControllers::get_showjson() {
+ json::map_t root;
+ for (auto &controllable : rcs.controllables) {
+ root[controllable->get_rc_name()].v =
+ std::make_shared<json::map_t>(controllable->get_all_values());
+ }
+
+ return json::map_to_json(root);
+}
+
std::string RemoteControllers::get_param(const std::string& name, const std::string& param) {
RemoteControllable* controllable = get_controllable_(name);
return controllable->get_parameter(param);
@@ -123,7 +137,7 @@ RemoteControllable* RemoteControllers::get_controllable_(const std::string& name
[&](RemoteControllable* r) { return r->get_rc_name() == name; });
if (rc == controllables.end()) {
- throw ParameterError("Module name unknown");
+ throw ParameterError(string{"Module name '"} + name + "' unknown");
}
else {
return *rc;
@@ -427,10 +441,15 @@ void RemoteControllerZmq::recv_all(zmq::socket_t& pSocket, std::vector<std::stri
bool more = true;
do {
zmq::message_t msg;
- pSocket.recv(msg);
- std::string incoming((char*)msg.data(), msg.size());
- message.push_back(incoming);
- more = msg.more();
+ const auto zresult = pSocket.recv(msg);
+ if (zresult) {
+ std::string incoming((char*)msg.data(), msg.size());
+ message.push_back(incoming);
+ more = msg.more();
+ }
+ else {
+ more = false;
+ }
} while (more);
}
@@ -457,6 +476,7 @@ void RemoteControllerZmq::send_fail_reply(zmq::socket_t &pSocket, const std::str
void RemoteControllerZmq::process()
{
m_fault = false;
+ m_active = true;
// create zmq reply socket for receiving ctrl parameters
try {
@@ -514,8 +534,21 @@ void RemoteControllerZmq::process()
repSocket.send(zmsg, (--cohort_size > 0) ? zmq::send_flags::sndmore : zmq::send_flags::none);
}
}
+ else if (msg.size() == 1 && command == "showjson") {
+ try {
+ std::string json = rcs.get_showjson();
+
+ zmq::message_t zmsg(json.size());
+ memcpy(zmsg.data(), json.data(), json.size());
+
+ repSocket.send(zmsg, zmq::send_flags::none);
+ }
+ catch (const ParameterError &err) {
+ send_fail_reply(repSocket, err.what());
+ }
+ }
else if (msg.size() == 2 && command == "show") {
- std::string module((char*) msg[1].data(), msg[1].size());
+ const std::string module((char*) msg[1].data(), msg[1].size());
try {
list< vector<string> > r = rcs.get_param_list_values(module);
size_t r_size = r.size();
@@ -533,8 +566,8 @@ void RemoteControllerZmq::process()
}
}
else if (msg.size() == 3 && command == "get") {
- std::string module((char*) msg[1].data(), msg[1].size());
- std::string parameter((char*) msg[2].data(), msg[2].size());
+ const std::string module((char*) msg[1].data(), msg[1].size());
+ const std::string parameter((char*) msg[2].data(), msg[2].size());
try {
std::string value = rcs.get_param(module, parameter);
@@ -547,9 +580,9 @@ void RemoteControllerZmq::process()
}
}
else if (msg.size() == 4 && command == "set") {
- std::string module((char*) msg[1].data(), msg[1].size());
- std::string parameter((char*) msg[2].data(), msg[2].size());
- std::string value((char*) msg[3].data(), msg[3].size());
+ const std::string module((char*) msg[1].data(), msg[1].size());
+ const std::string parameter((char*) msg[2].data(), msg[2].size());
+ const std::string value((char*) msg[3].data(), msg[3].size());
try {
rcs.set_param(module, parameter, value);
@@ -561,7 +594,7 @@ void RemoteControllerZmq::process()
}
else {
send_fail_reply(repSocket,
- "Unsupported command. commands: list, show, get, set");
+ "Unsupported command. commands: list, show, get, set, showjson");
}
}
}
diff --git a/lib/RemoteControl.h b/lib/RemoteControl.h
index 2358b3a..26f30d9 100644
--- a/lib/RemoteControl.h
+++ b/lib/RemoteControl.h
@@ -3,7 +3,7 @@
Her Majesty the Queen in Right of Canada (Communications Research
Center Canada)
- Copyright (C) 2019
+ Copyright (C) 2023
Matthias P. Braendli, matthias.braendli@mpb.li
http://www.opendigitalradio.org
@@ -36,6 +36,8 @@
#endif
#include <list>
+#include <unordered_map>
+#include <variant>
#include <map>
#include <memory>
#include <string>
@@ -46,6 +48,7 @@
#include "Log.h"
#include "Socket.h"
+#include "Json.h"
#define RC_ADD_PARAMETER(p, desc) { \
std::vector<std::string> p; \
@@ -113,13 +116,13 @@ class RemoteControllable {
}
/* Base function to set parameters. */
- virtual void set_parameter(
- const std::string& parameter,
- const std::string& value) = 0;
+ virtual void set_parameter(const std::string& parameter, const std::string& value) = 0;
/* Getting a parameter always returns a string. */
virtual const std::string get_parameter(const std::string& parameter) const = 0;
+ virtual const json::map_t get_all_values() const = 0;
+
protected:
std::string m_rc_name;
std::list< std::vector<std::string> > m_parameters;
@@ -135,6 +138,7 @@ class RemoteControllers {
void check_faults();
std::list< std::vector<std::string> > get_param_list_values(const std::string& name);
std::string get_param(const std::string& name, const std::string& param);
+ std::string get_showjson();
void set_param(
const std::string& name,
diff --git a/lib/charset/README b/lib/charset/README
index b20f76b..3217b87 100644
--- a/lib/charset/README
+++ b/lib/charset/README
@@ -1,2 +1,2 @@
This UTF-8 to EBU charset (defined in ETSI TS 101 756v1.8.1) was copied from
-ODR-PadEnc.
+ODR-PadEnc, with utf8 library v4.0.5 from https://github.com/nemtrif/utfcpp/tree/master/source/utf8
diff --git a/lib/charset/utf8.h b/lib/charset/utf8.h
index 4e44514..b513530 100644
--- a/lib/charset/utf8.h
+++ b/lib/charset/utf8.h
@@ -1,34 +1,46 @@
-// Copyright 2006 Nemanja Trifunovic
-
-/*
-Permission is hereby granted, free of charge, to any person or organization
-obtaining a copy of the software and accompanying documentation covered by
-this license (the "Software") to use, reproduce, display, distribute,
-execute, and transmit the Software, and to prepare derivative works of the
-Software, and to permit third-parties to whom the Software is furnished to
-do so, all subject to the following:
-
-The copyright notices in the Software and this entire statement, including
-the above license grant, this restriction and the following disclaimer,
-must be included in all copies of the Software, in whole or in part, and
-all derivative works of the Software, unless such copies or derivative
-works are solely in the form of machine-executable object code generated by
-a source language processor.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
-SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
-FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
-ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
-DEALINGS IN THE SOFTWARE.
-*/
-
-
-#ifndef UTF8_FOR_CPP_2675DCD0_9480_4c0c_B92A_CC14C027B731
-#define UTF8_FOR_CPP_2675DCD0_9480_4c0c_B92A_CC14C027B731
-
-#include "utf8/checked.h"
-#include "utf8/unchecked.h"
-
-#endif // header guard
+// Copyright 2006 Nemanja Trifunovic
+
+/*
+Permission is hereby granted, free of charge, to any person or organization
+obtaining a copy of the software and accompanying documentation covered by
+this license (the "Software") to use, reproduce, display, distribute,
+execute, and transmit the Software, and to prepare derivative works of the
+Software, and to permit third-parties to whom the Software is furnished to
+do so, all subject to the following:
+
+The copyright notices in the Software and this entire statement, including
+the above license grant, this restriction and the following disclaimer,
+must be included in all copies of the Software, in whole or in part, and
+all derivative works of the Software, unless such copies or derivative
+works are solely in the form of machine-executable object code generated by
+a source language processor.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
+SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
+FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+DEALINGS IN THE SOFTWARE.
+*/
+
+
+#ifndef UTF8_FOR_CPP_2675DCD0_9480_4c0c_B92A_CC14C027B731
+#define UTF8_FOR_CPP_2675DCD0_9480_4c0c_B92A_CC14C027B731
+
+/*
+To control the C++ language version used by the library, you can define UTF_CPP_CPLUSPLUS macro
+and set it to one of the values used by the __cplusplus predefined macro.
+
+For instance,
+ #define UTF_CPP_CPLUSPLUS 199711L
+will cause the UTF-8 CPP library to use only types and language features available in the C++ 98 standard.
+Some library features will be disabled.
+
+If you leave UTF_CPP_CPLUSPLUS undefined, it will be internally assigned to __cplusplus.
+*/
+
+#include "utf8/checked.h"
+#include "utf8/unchecked.h"
+
+#endif // header guard
diff --git a/lib/charset/utf8/checked.h b/lib/charset/utf8/checked.h
index 1331155..98949f8 100644
--- a/lib/charset/utf8/checked.h
+++ b/lib/charset/utf8/checked.h
@@ -1,4 +1,4 @@
-// Copyright 2006 Nemanja Trifunovic
+// Copyright 2006-2016 Nemanja Trifunovic
/*
Permission is hereby granted, free of charge, to any person or organization
@@ -39,64 +39,62 @@ namespace utf8
// Exceptions that may be thrown from the library functions.
class invalid_code_point : public exception {
- uint32_t cp;
+ utfchar32_t cp;
public:
- invalid_code_point(uint32_t cp) : cp(cp) {}
- virtual const char* what() const throw() { return "Invalid code point"; }
- uint32_t code_point() const {return cp;}
+ invalid_code_point(utfchar32_t codepoint) : cp(codepoint) {}
+ virtual const char* what() const UTF_CPP_NOEXCEPT UTF_CPP_OVERRIDE { return "Invalid code point"; }
+ utfchar32_t code_point() const {return cp;}
};
class invalid_utf8 : public exception {
- uint8_t u8;
+ utfchar8_t u8;
public:
- invalid_utf8 (uint8_t u) : u8(u) {}
- virtual const char* what() const throw() { return "Invalid UTF-8"; }
- uint8_t utf8_octet() const {return u8;}
+ invalid_utf8 (utfchar8_t u) : u8(u) {}
+ invalid_utf8 (char c) : u8(static_cast<utfchar8_t>(c)) {}
+ virtual const char* what() const UTF_CPP_NOEXCEPT UTF_CPP_OVERRIDE { return "Invalid UTF-8"; }
+ utfchar8_t utf8_octet() const {return u8;}
};
class invalid_utf16 : public exception {
- uint16_t u16;
+ utfchar16_t u16;
public:
- invalid_utf16 (uint16_t u) : u16(u) {}
- virtual const char* what() const throw() { return "Invalid UTF-16"; }
- uint16_t utf16_word() const {return u16;}
+ invalid_utf16 (utfchar16_t u) : u16(u) {}
+ virtual const char* what() const UTF_CPP_NOEXCEPT UTF_CPP_OVERRIDE { return "Invalid UTF-16"; }
+ utfchar16_t utf16_word() const {return u16;}
};
class not_enough_room : public exception {
public:
- virtual const char* what() const throw() { return "Not enough space"; }
+ virtual const char* what() const UTF_CPP_NOEXCEPT UTF_CPP_OVERRIDE { return "Not enough space"; }
};
/// The library API - functions intended to be called by the users
template <typename octet_iterator>
- octet_iterator append(uint32_t cp, octet_iterator result)
+ octet_iterator append(utfchar32_t cp, octet_iterator result)
{
if (!utf8::internal::is_code_point_valid(cp))
throw invalid_code_point(cp);
- if (cp < 0x80) // one octet
- *(result++) = static_cast<uint8_t>(cp);
- else if (cp < 0x800) { // two octets
- *(result++) = static_cast<uint8_t>((cp >> 6) | 0xc0);
- *(result++) = static_cast<uint8_t>((cp & 0x3f) | 0x80);
- }
- else if (cp < 0x10000) { // three octets
- *(result++) = static_cast<uint8_t>((cp >> 12) | 0xe0);
- *(result++) = static_cast<uint8_t>(((cp >> 6) & 0x3f) | 0x80);
- *(result++) = static_cast<uint8_t>((cp & 0x3f) | 0x80);
- }
- else { // four octets
- *(result++) = static_cast<uint8_t>((cp >> 18) | 0xf0);
- *(result++) = static_cast<uint8_t>(((cp >> 12) & 0x3f) | 0x80);
- *(result++) = static_cast<uint8_t>(((cp >> 6) & 0x3f) | 0x80);
- *(result++) = static_cast<uint8_t>((cp & 0x3f) | 0x80);
- }
- return result;
+ return internal::append(cp, result);
+ }
+
+ inline void append(utfchar32_t cp, std::string& s)
+ {
+ append(cp, std::back_inserter(s));
+ }
+
+ template <typename word_iterator>
+ word_iterator append16(utfchar32_t cp, word_iterator result)
+ {
+ if (!utf8::internal::is_code_point_valid(cp))
+ throw invalid_code_point(cp);
+
+ return internal::append16(cp, result);
}
template <typename octet_iterator, typename output_iterator>
- output_iterator replace_invalid(octet_iterator start, octet_iterator end, output_iterator out, uint32_t replacement)
+ output_iterator replace_invalid(octet_iterator start, octet_iterator end, output_iterator out, utfchar32_t replacement)
{
while (start != end) {
octet_iterator sequence_start = start;
@@ -107,7 +105,9 @@ namespace utf8
*out++ = *it;
break;
case internal::NOT_ENOUGH_ROOM:
- throw not_enough_room();
+ out = utf8::append (replacement, out);
+ start = end;
+ break;
case internal::INVALID_LEAD:
out = utf8::append (replacement, out);
++start;
@@ -129,14 +129,28 @@ namespace utf8
template <typename octet_iterator, typename output_iterator>
inline output_iterator replace_invalid(octet_iterator start, octet_iterator end, output_iterator out)
{
- static const uint32_t replacement_marker = utf8::internal::mask16(0xfffd);
+ static const utfchar32_t replacement_marker = utf8::internal::mask16(0xfffd);
return utf8::replace_invalid(start, end, out, replacement_marker);
}
+ inline std::string replace_invalid(const std::string& s, utfchar32_t replacement)
+ {
+ std::string result;
+ replace_invalid(s.begin(), s.end(), std::back_inserter(result), replacement);
+ return result;
+ }
+
+ inline std::string replace_invalid(const std::string& s)
+ {
+ std::string result;
+ replace_invalid(s.begin(), s.end(), std::back_inserter(result));
+ return result;
+ }
+
template <typename octet_iterator>
- uint32_t next(octet_iterator& it, octet_iterator end)
+ utfchar32_t next(octet_iterator& it, octet_iterator end)
{
- uint32_t cp = 0;
+ utfchar32_t cp = 0;
internal::utf_error err_code = utf8::internal::validate_next(it, end, cp);
switch (err_code) {
case internal::UTF8_OK :
@@ -146,21 +160,31 @@ namespace utf8
case internal::INVALID_LEAD :
case internal::INCOMPLETE_SEQUENCE :
case internal::OVERLONG_SEQUENCE :
- throw invalid_utf8(*it);
+ throw invalid_utf8(static_cast<utfchar8_t>(*it));
case internal::INVALID_CODE_POINT :
throw invalid_code_point(cp);
}
return cp;
}
+ template <typename word_iterator>
+ utfchar32_t next16(word_iterator& it, word_iterator end)
+ {
+ utfchar32_t cp = 0;
+ internal::utf_error err_code = utf8::internal::validate_next16(it, end, cp);
+ if (err_code == internal::NOT_ENOUGH_ROOM)
+ throw not_enough_room();
+ return cp;
+ }
+
template <typename octet_iterator>
- uint32_t peek_next(octet_iterator it, octet_iterator end)
+ utfchar32_t peek_next(octet_iterator it, octet_iterator end)
{
return utf8::next(it, end);
}
template <typename octet_iterator>
- uint32_t prior(octet_iterator& it, octet_iterator start)
+ utfchar32_t prior(octet_iterator& it, octet_iterator start)
{
// can't do much if it == start
if (it == start)
@@ -174,23 +198,19 @@ namespace utf8
return utf8::peek_next(it, end);
}
- /// Deprecated in versions that include "prior"
- template <typename octet_iterator>
- uint32_t previous(octet_iterator& it, octet_iterator pass_start)
- {
- octet_iterator end = it;
- while (utf8::internal::is_trail(*(--it)))
- if (it == pass_start)
- throw invalid_utf8(*it); // error - no lead byte in the sequence
- octet_iterator temp = it;
- return utf8::next(temp, end);
- }
-
template <typename octet_iterator, typename distance_type>
void advance (octet_iterator& it, distance_type n, octet_iterator end)
{
- for (distance_type i = 0; i < n; ++i)
- utf8::next(it, end);
+ const distance_type zero(0);
+ if (n < zero) {
+ // backward
+ for (distance_type i = n; i < zero; ++i)
+ utf8::prior(it, end);
+ } else {
+ // forward
+ for (distance_type i = zero; i < n; ++i)
+ utf8::next(it, end);
+ }
}
template <typename octet_iterator>
@@ -207,23 +227,23 @@ namespace utf8
octet_iterator utf16to8 (u16bit_iterator start, u16bit_iterator end, octet_iterator result)
{
while (start != end) {
- uint32_t cp = utf8::internal::mask16(*start++);
+ utfchar32_t cp = utf8::internal::mask16(*start++);
// Take care of surrogate pairs first
if (utf8::internal::is_lead_surrogate(cp)) {
if (start != end) {
- uint32_t trail_surrogate = utf8::internal::mask16(*start++);
+ const utfchar32_t trail_surrogate = utf8::internal::mask16(*start++);
if (utf8::internal::is_trail_surrogate(trail_surrogate))
cp = (cp << 10) + trail_surrogate + internal::SURROGATE_OFFSET;
else
- throw invalid_utf16(static_cast<uint16_t>(trail_surrogate));
+ throw invalid_utf16(static_cast<utfchar16_t>(trail_surrogate));
}
else
- throw invalid_utf16(static_cast<uint16_t>(cp));
+ throw invalid_utf16(static_cast<utfchar16_t>(cp));
}
// Lone trail surrogate
else if (utf8::internal::is_trail_surrogate(cp))
- throw invalid_utf16(static_cast<uint16_t>(cp));
+ throw invalid_utf16(static_cast<utfchar16_t>(cp));
result = utf8::append(cp, result);
}
@@ -233,14 +253,14 @@ namespace utf8
template <typename u16bit_iterator, typename octet_iterator>
u16bit_iterator utf8to16 (octet_iterator start, octet_iterator end, u16bit_iterator result)
{
- while (start != end) {
- uint32_t cp = utf8::next(start, end);
+ while (start < end) {
+ const utfchar32_t cp = utf8::next(start, end);
if (cp > 0xffff) { //make a surrogate pair
- *result++ = static_cast<uint16_t>((cp >> 10) + internal::LEAD_OFFSET);
- *result++ = static_cast<uint16_t>((cp & 0x3ff) + internal::TRAIL_SURROGATE_MIN);
+ *result++ = static_cast<utfchar16_t>((cp >> 10) + internal::LEAD_OFFSET);
+ *result++ = static_cast<utfchar16_t>((cp & 0x3ff) + internal::TRAIL_SURROGATE_MIN);
}
else
- *result++ = static_cast<uint16_t>(cp);
+ *result++ = static_cast<utfchar16_t>(cp);
}
return result;
}
@@ -257,7 +277,7 @@ namespace utf8
template <typename octet_iterator, typename u32bit_iterator>
u32bit_iterator utf8to32 (octet_iterator start, octet_iterator end, u32bit_iterator result)
{
- while (start != end)
+ while (start < end)
(*result++) = utf8::next(start, end);
return result;
@@ -265,23 +285,28 @@ namespace utf8
// The iterator class
template <typename octet_iterator>
- class iterator : public std::iterator <std::bidirectional_iterator_tag, uint32_t> {
+ class iterator {
octet_iterator it;
octet_iterator range_start;
octet_iterator range_end;
public:
+ typedef utfchar32_t value_type;
+ typedef utfchar32_t* pointer;
+ typedef utfchar32_t& reference;
+ typedef std::ptrdiff_t difference_type;
+ typedef std::bidirectional_iterator_tag iterator_category;
iterator () {}
explicit iterator (const octet_iterator& octet_it,
- const octet_iterator& range_start,
- const octet_iterator& range_end) :
- it(octet_it), range_start(range_start), range_end(range_end)
+ const octet_iterator& rangestart,
+ const octet_iterator& rangeend) :
+ it(octet_it), range_start(rangestart), range_end(rangeend)
{
if (it < range_start || it > range_end)
throw std::out_of_range("Invalid utf-8 iterator position");
}
// the default "big three" are OK
octet_iterator base () const { return it; }
- uint32_t operator * () const
+ utfchar32_t operator * () const
{
octet_iterator temp = it;
return utf8::next(temp, range_end);
@@ -322,6 +347,13 @@ namespace utf8
} // namespace utf8
-#endif //header guard
+#if UTF_CPP_CPLUSPLUS >= 202002L // C++ 20 or later
+#include "cpp20.h"
+#elif UTF_CPP_CPLUSPLUS >= 201703L // C++ 17 or later
+#include "cpp17.h"
+#elif UTF_CPP_CPLUSPLUS >= 201103L // C++ 11 or later
+#include "cpp11.h"
+#endif // C++ 11 or later
+#endif //header guard
diff --git a/lib/charset/utf8/core.h b/lib/charset/utf8/core.h
index 693d388..4494c53 100644
--- a/lib/charset/utf8/core.h
+++ b/lib/charset/utf8/core.h
@@ -29,15 +29,42 @@ DEALINGS IN THE SOFTWARE.
#define UTF8_FOR_CPP_CORE_H_2675DCD0_9480_4c0c_B92A_CC14C027B731
#include <iterator>
+#include <cstring>
+#include <string>
+
+// Determine the C++ standard version.
+// If the user defines UTF_CPP_CPLUSPLUS, use that.
+// Otherwise, trust the unreliable predefined macro __cplusplus
+
+#if !defined UTF_CPP_CPLUSPLUS
+ #define UTF_CPP_CPLUSPLUS __cplusplus
+#endif
+
+#if UTF_CPP_CPLUSPLUS >= 201103L // C++ 11 or later
+ #define UTF_CPP_OVERRIDE override
+ #define UTF_CPP_NOEXCEPT noexcept
+#else // C++ 98/03
+ #define UTF_CPP_OVERRIDE
+ #define UTF_CPP_NOEXCEPT throw()
+#endif // C++ 11 or later
+
namespace utf8
{
- // The typedefs for 8-bit, 16-bit and 32-bit unsigned integers
- // You may need to change them to match your system.
- // These typedefs have the same names as ones from cstdint, or boost/cstdint
- typedef unsigned char uint8_t;
- typedef unsigned short uint16_t;
- typedef unsigned int uint32_t;
+// The typedefs for 8-bit, 16-bit and 32-bit code units
+#if UTF_CPP_CPLUSPLUS >= 201103L // C++ 11 or later
+ #if UTF_CPP_CPLUSPLUS >= 202002L // C++ 20 or later
+ typedef char8_t utfchar8_t;
+ #else // C++ 11/14/17
+ typedef unsigned char utfchar8_t;
+ #endif
+ typedef char16_t utfchar16_t;
+ typedef char32_t utfchar32_t;
+#else // C++ 98/03
+ typedef unsigned char utfchar8_t;
+ typedef unsigned short utfchar16_t;
+ typedef unsigned int utfchar32_t;
+#endif // C++ 11 or later
// Helper code - not intended to be directly called by the library users. May be changed at any time
namespace internal
@@ -45,61 +72,62 @@ namespace internal
// Unicode constants
// Leading (high) surrogates: 0xd800 - 0xdbff
// Trailing (low) surrogates: 0xdc00 - 0xdfff
- const uint16_t LEAD_SURROGATE_MIN = 0xd800u;
- const uint16_t LEAD_SURROGATE_MAX = 0xdbffu;
- const uint16_t TRAIL_SURROGATE_MIN = 0xdc00u;
- const uint16_t TRAIL_SURROGATE_MAX = 0xdfffu;
- const uint16_t LEAD_OFFSET = LEAD_SURROGATE_MIN - (0x10000 >> 10);
- const uint32_t SURROGATE_OFFSET = 0x10000u - (LEAD_SURROGATE_MIN << 10) - TRAIL_SURROGATE_MIN;
+ const utfchar16_t LEAD_SURROGATE_MIN = 0xd800u;
+ const utfchar16_t LEAD_SURROGATE_MAX = 0xdbffu;
+ const utfchar16_t TRAIL_SURROGATE_MIN = 0xdc00u;
+ const utfchar16_t TRAIL_SURROGATE_MAX = 0xdfffu;
+ const utfchar16_t LEAD_OFFSET = 0xd7c0u; // LEAD_SURROGATE_MIN - (0x10000 >> 10)
+ const utfchar32_t SURROGATE_OFFSET = 0xfca02400u; // 0x10000u - (LEAD_SURROGATE_MIN << 10) - TRAIL_SURROGATE_MIN
// Maximum valid value for a Unicode code point
- const uint32_t CODE_POINT_MAX = 0x0010ffffu;
+ const utfchar32_t CODE_POINT_MAX = 0x0010ffffu;
template<typename octet_type>
- inline uint8_t mask8(octet_type oc)
+ inline utfchar8_t mask8(octet_type oc)
{
- return static_cast<uint8_t>(0xff & oc);
+ return static_cast<utfchar8_t>(0xff & oc);
}
template<typename u16_type>
- inline uint16_t mask16(u16_type oc)
+ inline utfchar16_t mask16(u16_type oc)
{
- return static_cast<uint16_t>(0xffff & oc);
+ return static_cast<utfchar16_t>(0xffff & oc);
}
+
template<typename octet_type>
inline bool is_trail(octet_type oc)
{
return ((utf8::internal::mask8(oc) >> 6) == 0x2);
}
- template <typename u16>
- inline bool is_lead_surrogate(u16 cp)
+ inline bool is_lead_surrogate(utfchar32_t cp)
{
return (cp >= LEAD_SURROGATE_MIN && cp <= LEAD_SURROGATE_MAX);
}
- template <typename u16>
- inline bool is_trail_surrogate(u16 cp)
+ inline bool is_trail_surrogate(utfchar32_t cp)
{
return (cp >= TRAIL_SURROGATE_MIN && cp <= TRAIL_SURROGATE_MAX);
}
- template <typename u16>
- inline bool is_surrogate(u16 cp)
+ inline bool is_surrogate(utfchar32_t cp)
{
return (cp >= LEAD_SURROGATE_MIN && cp <= TRAIL_SURROGATE_MAX);
}
- template <typename u32>
- inline bool is_code_point_valid(u32 cp)
+ inline bool is_code_point_valid(utfchar32_t cp)
{
return (cp <= CODE_POINT_MAX && !utf8::internal::is_surrogate(cp));
}
+ inline bool is_in_bmp(utfchar32_t cp)
+ {
+ return cp < utfchar32_t(0x10000);
+ }
+
template <typename octet_iterator>
- inline typename std::iterator_traits<octet_iterator>::difference_type
- sequence_length(octet_iterator lead_it)
+ int sequence_length(octet_iterator lead_it)
{
- uint8_t lead = utf8::internal::mask8(*lead_it);
+ const utfchar8_t lead = utf8::internal::mask8(*lead_it);
if (lead < 0x80)
return 1;
else if ((lead >> 5) == 0x6)
@@ -112,8 +140,7 @@ namespace internal
return 0;
}
- template <typename octet_difference_type>
- inline bool is_overlong_sequence(uint32_t cp, octet_difference_type length)
+ inline bool is_overlong_sequence(utfchar32_t cp, int length)
{
if (cp < 0x80) {
if (length != 1)
@@ -127,7 +154,6 @@ namespace internal
if (length != 3)
return true;
}
-
return false;
}
@@ -135,22 +161,22 @@ namespace internal
/// Helper for get_sequence_x
template <typename octet_iterator>
- utf_error increase_safely(octet_iterator& it, octet_iterator end)
+ utf_error increase_safely(octet_iterator& it, const octet_iterator end)
{
if (++it == end)
return NOT_ENOUGH_ROOM;
if (!utf8::internal::is_trail(*it))
return INCOMPLETE_SEQUENCE;
-
+
return UTF8_OK;
}
- #define UTF8_CPP_INCREASE_AND_RETURN_ON_ERROR(IT, END) {utf_error ret = increase_safely(IT, END); if (ret != UTF8_OK) return ret;}
+ #define UTF8_CPP_INCREASE_AND_RETURN_ON_ERROR(IT, END) {utf_error ret = increase_safely(IT, END); if (ret != UTF8_OK) return ret;}
/// get_sequence_x functions decode utf-8 sequences of the length x
template <typename octet_iterator>
- utf_error get_sequence_1(octet_iterator& it, octet_iterator end, uint32_t& code_point)
+ utf_error get_sequence_1(octet_iterator& it, octet_iterator end, utfchar32_t& code_point)
{
if (it == end)
return NOT_ENOUGH_ROOM;
@@ -161,11 +187,11 @@ namespace internal
}
template <typename octet_iterator>
- utf_error get_sequence_2(octet_iterator& it, octet_iterator end, uint32_t& code_point)
+ utf_error get_sequence_2(octet_iterator& it, octet_iterator end, utfchar32_t& code_point)
{
if (it == end)
return NOT_ENOUGH_ROOM;
-
+
code_point = utf8::internal::mask8(*it);
UTF8_CPP_INCREASE_AND_RETURN_ON_ERROR(it, end)
@@ -176,7 +202,7 @@ namespace internal
}
template <typename octet_iterator>
- utf_error get_sequence_3(octet_iterator& it, octet_iterator end, uint32_t& code_point)
+ utf_error get_sequence_3(octet_iterator& it, octet_iterator end, utfchar32_t& code_point)
{
if (it == end)
return NOT_ENOUGH_ROOM;
@@ -195,7 +221,7 @@ namespace internal
}
template <typename octet_iterator>
- utf_error get_sequence_4(octet_iterator& it, octet_iterator end, uint32_t& code_point)
+ utf_error get_sequence_4(octet_iterator& it, octet_iterator end, utfchar32_t& code_point)
{
if (it == end)
return NOT_ENOUGH_ROOM;
@@ -220,21 +246,23 @@ namespace internal
#undef UTF8_CPP_INCREASE_AND_RETURN_ON_ERROR
template <typename octet_iterator>
- utf_error validate_next(octet_iterator& it, octet_iterator end, uint32_t& code_point)
+ utf_error validate_next(octet_iterator& it, octet_iterator end, utfchar32_t& code_point)
{
+ if (it == end)
+ return NOT_ENOUGH_ROOM;
+
// Save the original value of it so we can go back in case of failure
// Of course, it does not make much sense with i.e. stream iterators
octet_iterator original_it = it;
- uint32_t cp = 0;
+ utfchar32_t cp = 0;
// Determine the sequence length based on the lead octet
- typedef typename std::iterator_traits<octet_iterator>::difference_type octet_difference_type;
- const octet_difference_type length = utf8::internal::sequence_length(it);
+ const int length = utf8::internal::sequence_length(it);
// Get trail octets and calculate the code point
utf_error err = UTF8_OK;
switch (length) {
- case 0:
+ case 0:
return INVALID_LEAD;
case 1:
err = utf8::internal::get_sequence_1(it, end, cp);
@@ -273,16 +301,133 @@ namespace internal
template <typename octet_iterator>
inline utf_error validate_next(octet_iterator& it, octet_iterator end) {
- uint32_t ignored;
+ utfchar32_t ignored;
return utf8::internal::validate_next(it, end, ignored);
}
+ template <typename word_iterator>
+ utf_error validate_next16(word_iterator& it, word_iterator end, utfchar32_t& code_point)
+ {
+ if (it == end)
+ return NOT_ENOUGH_ROOM;
+ // Save the original value of it so we can go back in case of failure
+ // Of course, it does not make much sense with i.e. stream iterators
+ word_iterator original_it = it;
+
+ utf_error err = UTF8_OK;
+
+ const utfchar16_t first_word = *it++;
+ if (!is_surrogate(first_word)) {
+ code_point = first_word;
+ return UTF8_OK;
+ }
+ else {
+ if (it == end)
+ err = NOT_ENOUGH_ROOM;
+ else if (is_lead_surrogate(first_word)) {
+ const utfchar16_t second_word = *it++;
+ if (is_trail_surrogate(second_word)) {
+ code_point = (first_word << 10) + second_word + SURROGATE_OFFSET;
+ return UTF8_OK;
+ } else
+ err = INCOMPLETE_SEQUENCE;
+
+ } else {
+ err = INVALID_LEAD;
+ }
+ }
+ // error branch
+ it = original_it;
+ return err;
+ }
+
+ // Internal implementation of both checked and unchecked append() function
+ // This function will be invoked by the overloads below, as they will know
+ // the octet_type.
+ template <typename octet_iterator, typename octet_type>
+ octet_iterator append(utfchar32_t cp, octet_iterator result) {
+ if (cp < 0x80) // one octet
+ *(result++) = static_cast<octet_type>(cp);
+ else if (cp < 0x800) { // two octets
+ *(result++) = static_cast<octet_type>((cp >> 6) | 0xc0);
+ *(result++) = static_cast<octet_type>((cp & 0x3f) | 0x80);
+ }
+ else if (cp < 0x10000) { // three octets
+ *(result++) = static_cast<octet_type>((cp >> 12) | 0xe0);
+ *(result++) = static_cast<octet_type>(((cp >> 6) & 0x3f) | 0x80);
+ *(result++) = static_cast<octet_type>((cp & 0x3f) | 0x80);
+ }
+ else { // four octets
+ *(result++) = static_cast<octet_type>((cp >> 18) | 0xf0);
+ *(result++) = static_cast<octet_type>(((cp >> 12) & 0x3f)| 0x80);
+ *(result++) = static_cast<octet_type>(((cp >> 6) & 0x3f) | 0x80);
+ *(result++) = static_cast<octet_type>((cp & 0x3f) | 0x80);
+ }
+ return result;
+ }
+
+ // One of the following overloads will be invoked from the API calls
+
+ // A simple (but dangerous) case: the caller appends byte(s) to a char array
+ inline char* append(utfchar32_t cp, char* result) {
+ return append<char*, char>(cp, result);
+ }
+
+ // Hopefully, most common case: the caller uses back_inserter
+ // i.e. append(cp, std::back_inserter(str));
+ template<typename container_type>
+ std::back_insert_iterator<container_type> append
+ (utfchar32_t cp, std::back_insert_iterator<container_type> result) {
+ return append<std::back_insert_iterator<container_type>,
+ typename container_type::value_type>(cp, result);
+ }
+
+ // The caller uses some other kind of output operator - not covered above
+ // Note that in this case we are not able to determine octet_type
+ // so we assume it's utfchar8_t; that can cause a conversion warning if we are wrong.
+ template <typename octet_iterator>
+ octet_iterator append(utfchar32_t cp, octet_iterator result) {
+ return append<octet_iterator, utfchar8_t>(cp, result);
+ }
+
+ // Internal implementation of both checked and unchecked append16() function
+ // This function will be invoked by the overloads below, as they will know
+ // the word_type.
+ template <typename word_iterator, typename word_type>
+ word_iterator append16(utfchar32_t cp, word_iterator result) {
+ if (is_in_bmp(cp))
+ *(result++) = static_cast<word_type>(cp);
+ else {
+ // Code points from the supplementary planes are encoded via surrogate pairs
+ *(result++) = static_cast<word_type>(LEAD_OFFSET + (cp >> 10));
+ *(result++) = static_cast<word_type>(TRAIL_SURROGATE_MIN + (cp & 0x3FF));
+ }
+ return result;
+ }
+
+ // Hopefully, most common case: the caller uses back_inserter
+ // i.e. append16(cp, std::back_inserter(str));
+ template<typename container_type>
+ std::back_insert_iterator<container_type> append16
+ (utfchar32_t cp, std::back_insert_iterator<container_type> result) {
+ return append16<std::back_insert_iterator<container_type>,
+ typename container_type::value_type>(cp, result);
+ }
+
+ // The caller uses some other kind of output operator - not covered above
+ // Note that in this case we are not able to determine word_type
+ // so we assume it's utfchar16_t; that can cause a conversion warning if we are wrong.
+ template <typename word_iterator>
+ word_iterator append16(utfchar32_t cp, word_iterator result) {
+ return append16<word_iterator, utfchar16_t>(cp, result);
+ }
+
} // namespace internal
/// The library API - functions intended to be called by the users
// Byte order mark
- const uint8_t bom[] = {0xef, 0xbb, 0xbf};
+ const utfchar8_t bom[] = {0xef, 0xbb, 0xbf};
template <typename octet_iterator>
octet_iterator find_invalid(octet_iterator start, octet_iterator end)
@@ -296,12 +441,36 @@ namespace internal
return result;
}
+ inline const char* find_invalid(const char* str)
+ {
+ const char* end = str + std::strlen(str);
+ return find_invalid(str, end);
+ }
+
+ inline std::size_t find_invalid(const std::string& s)
+ {
+ std::string::const_iterator invalid = find_invalid(s.begin(), s.end());
+ return (invalid == s.end()) ? std::string::npos : static_cast<std::size_t>(invalid - s.begin());
+ }
+
template <typename octet_iterator>
inline bool is_valid(octet_iterator start, octet_iterator end)
{
return (utf8::find_invalid(start, end) == end);
}
+ inline bool is_valid(const char* str)
+ {
+ return (*(utf8::find_invalid(str)) == '\0');
+ }
+
+ inline bool is_valid(const std::string& s)
+ {
+ return is_valid(s.begin(), s.end());
+ }
+
+
+
template <typename octet_iterator>
inline bool starts_with_bom (octet_iterator it, octet_iterator end)
{
@@ -311,17 +480,11 @@ namespace internal
((it != end) && (utf8::internal::mask8(*it)) == bom[2])
);
}
-
- //Deprecated in release 2.3
- template <typename octet_iterator>
- inline bool is_bom (octet_iterator it)
+
+ inline bool starts_with_bom(const std::string& s)
{
- return (
- (utf8::internal::mask8(*it++)) == bom[0] &&
- (utf8::internal::mask8(*it++)) == bom[1] &&
- (utf8::internal::mask8(*it)) == bom[2]
- );
- }
+ return starts_with_bom(s.begin(), s.end());
+ }
} // namespace utf8
#endif // header guard
diff --git a/lib/charset/utf8/cpp11.h b/lib/charset/utf8/cpp11.h
new file mode 100644
index 0000000..691633c
--- /dev/null
+++ b/lib/charset/utf8/cpp11.h
@@ -0,0 +1,70 @@
+// Copyright 2018 Nemanja Trifunovic
+
+/*
+Permission is hereby granted, free of charge, to any person or organization
+obtaining a copy of the software and accompanying documentation covered by
+this license (the "Software") to use, reproduce, display, distribute,
+execute, and transmit the Software, and to prepare derivative works of the
+Software, and to permit third-parties to whom the Software is furnished to
+do so, all subject to the following:
+
+The copyright notices in the Software and this entire statement, including
+the above license grant, this restriction and the following disclaimer,
+must be included in all copies of the Software, in whole or in part, and
+all derivative works of the Software, unless such copies or derivative
+works are solely in the form of machine-executable object code generated by
+a source language processor.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
+SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
+FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+DEALINGS IN THE SOFTWARE.
+*/
+
+
+#ifndef UTF8_FOR_CPP_a184c22c_d012_11e8_a8d5_f2801f1b9fd1
+#define UTF8_FOR_CPP_a184c22c_d012_11e8_a8d5_f2801f1b9fd1
+
+#include "checked.h"
+
+namespace utf8
+{
+ inline void append16(utfchar32_t cp, std::u16string& s)
+ {
+ append16(cp, std::back_inserter(s));
+ }
+
+ inline std::string utf16to8(const std::u16string& s)
+ {
+ std::string result;
+ utf16to8(s.begin(), s.end(), std::back_inserter(result));
+ return result;
+ }
+
+ inline std::u16string utf8to16(const std::string& s)
+ {
+ std::u16string result;
+ utf8to16(s.begin(), s.end(), std::back_inserter(result));
+ return result;
+ }
+
+ inline std::string utf32to8(const std::u32string& s)
+ {
+ std::string result;
+ utf32to8(s.begin(), s.end(), std::back_inserter(result));
+ return result;
+ }
+
+ inline std::u32string utf8to32(const std::string& s)
+ {
+ std::u32string result;
+ utf8to32(s.begin(), s.end(), std::back_inserter(result));
+ return result;
+ }
+} // namespace utf8
+
+#endif // header guard
+
diff --git a/lib/charset/utf8/cpp17.h b/lib/charset/utf8/cpp17.h
new file mode 100644
index 0000000..6e2fcc2
--- /dev/null
+++ b/lib/charset/utf8/cpp17.h
@@ -0,0 +1,96 @@
+// Copyright 2018 Nemanja Trifunovic
+
+/*
+Permission is hereby granted, free of charge, to any person or organization
+obtaining a copy of the software and accompanying documentation covered by
+this license (the "Software") to use, reproduce, display, distribute,
+execute, and transmit the Software, and to prepare derivative works of the
+Software, and to permit third-parties to whom the Software is furnished to
+do so, all subject to the following:
+
+The copyright notices in the Software and this entire statement, including
+the above license grant, this restriction and the following disclaimer,
+must be included in all copies of the Software, in whole or in part, and
+all derivative works of the Software, unless such copies or derivative
+works are solely in the form of machine-executable object code generated by
+a source language processor.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
+SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
+FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+DEALINGS IN THE SOFTWARE.
+*/
+
+
+#ifndef UTF8_FOR_CPP_7e906c01_03a3_4daf_b420_ea7ea952b3c9
+#define UTF8_FOR_CPP_7e906c01_03a3_4daf_b420_ea7ea952b3c9
+
+#include "cpp11.h"
+
+namespace utf8
+{
+ inline std::string utf16to8(std::u16string_view s)
+ {
+ std::string result;
+ utf16to8(s.begin(), s.end(), std::back_inserter(result));
+ return result;
+ }
+
+ inline std::u16string utf8to16(std::string_view s)
+ {
+ std::u16string result;
+ utf8to16(s.begin(), s.end(), std::back_inserter(result));
+ return result;
+ }
+
+ inline std::string utf32to8(std::u32string_view s)
+ {
+ std::string result;
+ utf32to8(s.begin(), s.end(), std::back_inserter(result));
+ return result;
+ }
+
+ inline std::u32string utf8to32(std::string_view s)
+ {
+ std::u32string result;
+ utf8to32(s.begin(), s.end(), std::back_inserter(result));
+ return result;
+ }
+
+ inline std::size_t find_invalid(std::string_view s)
+ {
+ std::string_view::const_iterator invalid = find_invalid(s.begin(), s.end());
+ return (invalid == s.end()) ? std::string_view::npos : static_cast<std::size_t>(invalid - s.begin());
+ }
+
+ inline bool is_valid(std::string_view s)
+ {
+ return is_valid(s.begin(), s.end());
+ }
+
+ inline std::string replace_invalid(std::string_view s, char32_t replacement)
+ {
+ std::string result;
+ replace_invalid(s.begin(), s.end(), std::back_inserter(result), replacement);
+ return result;
+ }
+
+ inline std::string replace_invalid(std::string_view s)
+ {
+ std::string result;
+ replace_invalid(s.begin(), s.end(), std::back_inserter(result));
+ return result;
+ }
+
+ inline bool starts_with_bom(std::string_view s)
+ {
+ return starts_with_bom(s.begin(), s.end());
+ }
+
+} // namespace utf8
+
+#endif // header guard
+
diff --git a/lib/charset/utf8/cpp20.h b/lib/charset/utf8/cpp20.h
new file mode 100644
index 0000000..07b61d0
--- /dev/null
+++ b/lib/charset/utf8/cpp20.h
@@ -0,0 +1,124 @@
+// Copyright 2022 Nemanja Trifunovic
+
+/*
+Permission is hereby granted, free of charge, to any person or organization
+obtaining a copy of the software and accompanying documentation covered by
+this license (the "Software") to use, reproduce, display, distribute,
+execute, and transmit the Software, and to prepare derivative works of the
+Software, and to permit third-parties to whom the Software is furnished to
+do so, all subject to the following:
+
+The copyright notices in the Software and this entire statement, including
+the above license grant, this restriction and the following disclaimer,
+must be included in all copies of the Software, in whole or in part, and
+all derivative works of the Software, unless such copies or derivative
+works are solely in the form of machine-executable object code generated by
+a source language processor.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
+SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
+FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+DEALINGS IN THE SOFTWARE.
+*/
+
+
+#ifndef UTF8_FOR_CPP_207e906c01_03a3_4daf_b420_ea7ea952b3c9
+#define UTF8_FOR_CPP_207e906c01_03a3_4daf_b420_ea7ea952b3c9
+
+#include "cpp17.h"
+
+namespace utf8
+{
+ inline std::u8string utf16tou8(const std::u16string& s)
+ {
+ std::u8string result;
+ utf16to8(s.begin(), s.end(), std::back_inserter(result));
+ return result;
+ }
+
+ inline std::u8string utf16tou8(std::u16string_view s)
+ {
+ std::u8string result;
+ utf16to8(s.begin(), s.end(), std::back_inserter(result));
+ return result;
+ }
+
+ inline std::u16string utf8to16(const std::u8string& s)
+ {
+ std::u16string result;
+ utf8to16(s.begin(), s.end(), std::back_inserter(result));
+ return result;
+ }
+
+ inline std::u16string utf8to16(const std::u8string_view& s)
+ {
+ std::u16string result;
+ utf8to16(s.begin(), s.end(), std::back_inserter(result));
+ return result;
+ }
+
+ inline std::u8string utf32tou8(const std::u32string& s)
+ {
+ std::u8string result;
+ utf32to8(s.begin(), s.end(), std::back_inserter(result));
+ return result;
+ }
+
+ inline std::u8string utf32tou8(const std::u32string_view& s)
+ {
+ std::u8string result;
+ utf32to8(s.begin(), s.end(), std::back_inserter(result));
+ return result;
+ }
+
+ inline std::u32string utf8to32(const std::u8string& s)
+ {
+ std::u32string result;
+ utf8to32(s.begin(), s.end(), std::back_inserter(result));
+ return result;
+ }
+
+ inline std::u32string utf8to32(const std::u8string_view& s)
+ {
+ std::u32string result;
+ utf8to32(s.begin(), s.end(), std::back_inserter(result));
+ return result;
+ }
+
+ inline std::size_t find_invalid(const std::u8string& s)
+ {
+ std::u8string::const_iterator invalid = find_invalid(s.begin(), s.end());
+ return (invalid == s.end()) ? std::string_view::npos : static_cast<std::size_t>(invalid - s.begin());
+ }
+
+ inline bool is_valid(const std::u8string& s)
+ {
+ return is_valid(s.begin(), s.end());
+ }
+
+ inline std::u8string replace_invalid(const std::u8string& s, char32_t replacement)
+ {
+ std::u8string result;
+ replace_invalid(s.begin(), s.end(), std::back_inserter(result), replacement);
+ return result;
+ }
+
+ inline std::u8string replace_invalid(const std::u8string& s)
+ {
+ std::u8string result;
+ replace_invalid(s.begin(), s.end(), std::back_inserter(result));
+ return result;
+ }
+
+ inline bool starts_with_bom(const std::u8string& s)
+ {
+ return starts_with_bom(s.begin(), s.end());
+ }
+
+} // namespace utf8
+
+#endif // header guard
+
diff --git a/lib/charset/utf8/unchecked.h b/lib/charset/utf8/unchecked.h
index cb24271..65d4948 100644
--- a/lib/charset/utf8/unchecked.h
+++ b/lib/charset/utf8/unchecked.h
@@ -32,37 +32,79 @@ DEALINGS IN THE SOFTWARE.
namespace utf8
{
- namespace unchecked
+ namespace unchecked
{
template <typename octet_iterator>
- octet_iterator append(uint32_t cp, octet_iterator result)
+ octet_iterator append(utfchar32_t cp, octet_iterator result)
{
- if (cp < 0x80) // one octet
- *(result++) = static_cast<uint8_t>(cp);
- else if (cp < 0x800) { // two octets
- *(result++) = static_cast<uint8_t>((cp >> 6) | 0xc0);
- *(result++) = static_cast<uint8_t>((cp & 0x3f) | 0x80);
- }
- else if (cp < 0x10000) { // three octets
- *(result++) = static_cast<uint8_t>((cp >> 12) | 0xe0);
- *(result++) = static_cast<uint8_t>(((cp >> 6) & 0x3f) | 0x80);
- *(result++) = static_cast<uint8_t>((cp & 0x3f) | 0x80);
- }
- else { // four octets
- *(result++) = static_cast<uint8_t>((cp >> 18) | 0xf0);
- *(result++) = static_cast<uint8_t>(((cp >> 12) & 0x3f)| 0x80);
- *(result++) = static_cast<uint8_t>(((cp >> 6) & 0x3f) | 0x80);
- *(result++) = static_cast<uint8_t>((cp & 0x3f) | 0x80);
+ return internal::append(cp, result);
+ }
+
+ template <typename word_iterator>
+ word_iterator append16(utfchar32_t cp, word_iterator result)
+ {
+ return internal::append16(cp, result);
+ }
+
+ template <typename octet_iterator, typename output_iterator>
+ output_iterator replace_invalid(octet_iterator start, octet_iterator end, output_iterator out, utfchar32_t replacement)
+ {
+ while (start != end) {
+ octet_iterator sequence_start = start;
+ internal::utf_error err_code = utf8::internal::validate_next(start, end);
+ switch (err_code) {
+ case internal::UTF8_OK :
+ for (octet_iterator it = sequence_start; it != start; ++it)
+ *out++ = *it;
+ break;
+ case internal::NOT_ENOUGH_ROOM:
+ out = utf8::unchecked::append(replacement, out);
+ start = end;
+ break;
+ case internal::INVALID_LEAD:
+ out = utf8::unchecked::append(replacement, out);
+ ++start;
+ break;
+ case internal::INCOMPLETE_SEQUENCE:
+ case internal::OVERLONG_SEQUENCE:
+ case internal::INVALID_CODE_POINT:
+ out = utf8::unchecked::append(replacement, out);
+ ++start;
+ // just one replacement mark for the sequence
+ while (start != end && utf8::internal::is_trail(*start))
+ ++start;
+ break;
+ }
}
+ return out;
+ }
+
+ template <typename octet_iterator, typename output_iterator>
+ inline output_iterator replace_invalid(octet_iterator start, octet_iterator end, output_iterator out)
+ {
+ static const utfchar32_t replacement_marker = utf8::internal::mask16(0xfffd);
+ return utf8::unchecked::replace_invalid(start, end, out, replacement_marker);
+ }
+
+ inline std::string replace_invalid(const std::string& s, utfchar32_t replacement)
+ {
+ std::string result;
+ replace_invalid(s.begin(), s.end(), std::back_inserter(result), replacement);
+ return result;
+ }
+
+ inline std::string replace_invalid(const std::string& s)
+ {
+ std::string result;
+ replace_invalid(s.begin(), s.end(), std::back_inserter(result));
return result;
}
template <typename octet_iterator>
- uint32_t next(octet_iterator& it)
+ utfchar32_t next(octet_iterator& it)
{
- uint32_t cp = utf8::internal::mask8(*it);
- typename std::iterator_traits<octet_iterator>::difference_type length = utf8::internal::sequence_length(it);
- switch (length) {
+ utfchar32_t cp = utf8::internal::mask8(*it);
+ switch (utf8::internal::sequence_length(it)) {
case 1:
break;
case 2:
@@ -85,40 +127,50 @@ namespace utf8
break;
}
++it;
- return cp;
+ return cp;
}
template <typename octet_iterator>
- uint32_t peek_next(octet_iterator it)
+ utfchar32_t peek_next(octet_iterator it)
{
- return utf8::unchecked::next(it);
+ return utf8::unchecked::next(it);
}
- template <typename octet_iterator>
- uint32_t prior(octet_iterator& it)
+ template <typename word_iterator>
+ utfchar32_t next16(word_iterator& it)
{
- while (utf8::internal::is_trail(*(--it))) ;
- octet_iterator temp = it;
- return utf8::unchecked::next(temp);
+ utfchar32_t cp = utf8::internal::mask16(*it++);
+ if (utf8::internal::is_lead_surrogate(cp))
+ return (cp << 10) + *it++ + utf8::internal::SURROGATE_OFFSET;
+ return cp;
}
- // Deprecated in versions that include prior, but only for the sake of consistency (see utf8::previous)
template <typename octet_iterator>
- inline uint32_t previous(octet_iterator& it)
+ utfchar32_t prior(octet_iterator& it)
{
- return utf8::unchecked::prior(it);
+ while (utf8::internal::is_trail(*(--it))) ;
+ octet_iterator temp = it;
+ return utf8::unchecked::next(temp);
}
template <typename octet_iterator, typename distance_type>
- void advance (octet_iterator& it, distance_type n)
+ void advance(octet_iterator& it, distance_type n)
{
- for (distance_type i = 0; i < n; ++i)
- utf8::unchecked::next(it);
+ const distance_type zero(0);
+ if (n < zero) {
+ // backward
+ for (distance_type i = n; i < zero; ++i)
+ utf8::unchecked::prior(it);
+ } else {
+ // forward
+ for (distance_type i = zero; i < n; ++i)
+ utf8::unchecked::next(it);
+ }
}
template <typename octet_iterator>
typename std::iterator_traits<octet_iterator>::difference_type
- distance (octet_iterator first, octet_iterator last)
+ distance(octet_iterator first, octet_iterator last)
{
typename std::iterator_traits<octet_iterator>::difference_type dist;
for (dist = 0; first < last; ++dist)
@@ -127,37 +179,39 @@ namespace utf8
}
template <typename u16bit_iterator, typename octet_iterator>
- octet_iterator utf16to8 (u16bit_iterator start, u16bit_iterator end, octet_iterator result)
- {
+ octet_iterator utf16to8(u16bit_iterator start, u16bit_iterator end, octet_iterator result)
+ {
while (start != end) {
- uint32_t cp = utf8::internal::mask16(*start++);
- // Take care of surrogate pairs first
+ utfchar32_t cp = utf8::internal::mask16(*start++);
+ // Take care of surrogate pairs first
if (utf8::internal::is_lead_surrogate(cp)) {
- uint32_t trail_surrogate = utf8::internal::mask16(*start++);
+ if (start == end)
+ return result;
+ utfchar32_t trail_surrogate = utf8::internal::mask16(*start++);
cp = (cp << 10) + trail_surrogate + internal::SURROGATE_OFFSET;
}
result = utf8::unchecked::append(cp, result);
}
- return result;
+ return result;
}
template <typename u16bit_iterator, typename octet_iterator>
- u16bit_iterator utf8to16 (octet_iterator start, octet_iterator end, u16bit_iterator result)
+ u16bit_iterator utf8to16(octet_iterator start, octet_iterator end, u16bit_iterator result)
{
while (start < end) {
- uint32_t cp = utf8::unchecked::next(start);
+ utfchar32_t cp = utf8::unchecked::next(start);
if (cp > 0xffff) { //make a surrogate pair
- *result++ = static_cast<uint16_t>((cp >> 10) + internal::LEAD_OFFSET);
- *result++ = static_cast<uint16_t>((cp & 0x3ff) + internal::TRAIL_SURROGATE_MIN);
+ *result++ = static_cast<utfchar16_t>((cp >> 10) + internal::LEAD_OFFSET);
+ *result++ = static_cast<utfchar16_t>((cp & 0x3ff) + internal::TRAIL_SURROGATE_MIN);
}
else
- *result++ = static_cast<uint16_t>(cp);
+ *result++ = static_cast<utfchar16_t>(cp);
}
return result;
}
template <typename octet_iterator, typename u32bit_iterator>
- octet_iterator utf32to8 (u32bit_iterator start, u32bit_iterator end, octet_iterator result)
+ octet_iterator utf32to8(u32bit_iterator start, u32bit_iterator end, octet_iterator result)
{
while (start != end)
result = utf8::unchecked::append(*(start++), result);
@@ -166,7 +220,7 @@ namespace utf8
}
template <typename octet_iterator, typename u32bit_iterator>
- u32bit_iterator utf8to32 (octet_iterator start, octet_iterator end, u32bit_iterator result)
+ u32bit_iterator utf8to32(octet_iterator start, octet_iterator end, u32bit_iterator result)
{
while (start < end)
(*result++) = utf8::unchecked::next(start);
@@ -176,14 +230,19 @@ namespace utf8
// The iterator class
template <typename octet_iterator>
- class iterator : public std::iterator <std::bidirectional_iterator_tag, uint32_t> {
+ class iterator {
octet_iterator it;
public:
+ typedef utfchar32_t value_type;
+ typedef utfchar32_t* pointer;
+ typedef utfchar32_t& reference;
+ typedef std::ptrdiff_t difference_type;
+ typedef std::bidirectional_iterator_tag iterator_category;
iterator () {}
explicit iterator (const octet_iterator& octet_it): it(octet_it) {}
// the default "big three" are OK
octet_iterator base () const { return it; }
- uint32_t operator * () const
+ utfchar32_t operator * () const
{
octet_iterator temp = it;
return utf8::unchecked::next(temp);
generated by cgit v1.2.3 (git 2.46.0) at 2025-10-31 19:31:31 +0000