Reflow logcat_entry.cpp
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parent
d1afe12773
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55210a7e30
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CC15FC822C7F61F5
169
logcat_entry.cpp
169
logcat_entry.cpp
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@ -7,9 +7,24 @@
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#include "logcat_entry.h"
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#include "pcre2_wrapper.h"
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static const Pcre2Regex LogcatEntryRegex("^\\s*(\\d+)(?:\\.\\d+)?(?:\\s+([\\w\\d._-]+))?\\s+(\\d+)\\s+(\\d+)\\s+([A-Z])\\s+(.+?)\\s*:\\s(.*)$");
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static const Pcre2Regex LogcatEntryRegex(
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"^ *(\\d+)(?:\\.\\d+)?" // time
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"(?: +([\\w\\d._-]+))?" // optional user
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" +(\\d+)" // pid
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" +(\\d+)" // tid
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" +([A-Z])" // priority
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" +(.+?) *: (.*)$" // tag and message
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);
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static const Pcre2Regex BufferRegex("^--------- (?:beginning of|switch to) (\\w+)$");
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static std::string leftpad(const std::string& str, size_t characters);
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static inline char to_char(Priority priority);
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static inline std::string rightpad(const std::string& str, size_t characters);
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static inline Priority priority_from(char c);
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static inline long to_long(const char* str, const char* expected_end);
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static unsigned long long to_ull(const char* str, const char* expected_end);
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const char* to_string(Priority priority) {
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switch (priority) {
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case Priority::Verbose: return "Verbose";
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@ -44,30 +59,6 @@ const char* to_string_lower(Buffer buffer) {
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}
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}
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static std::string leftpad(const std::string& str, size_t characters) {
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return str.size() >= characters
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? str
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: std::string(characters - str.size(), ' ') + str;
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}
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static inline char to_char(Priority priority) {
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switch (priority) {
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case Priority::Verbose: return 'V';
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case Priority::Debug: return 'D';
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case Priority::Info: return 'I';
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case Priority::Warn: return 'W';
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case Priority::Error: return 'E';
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case Priority::Fatal: return 'F';
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case Priority::Unknown: return 'U';
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}
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}
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static inline std::string rightpad(const std::string& str, size_t characters) {
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return str.size() >= characters
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? str
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: str + std::string(characters - str.size(), ' ');
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}
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std::string to_string(const LogcatEntry& logcat_entry) {
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char logcat_style_time_as_str[32] = {0};
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strftime(logcat_style_time_as_str, 31 * sizeof(char), "%Y-%m-%d %H:%M:%S", &logcat_entry.time);
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@ -81,45 +72,6 @@ std::string to_string(const LogcatEntry& logcat_entry) {
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+ ": " + logcat_entry.message;
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}
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static inline Priority priority_from(char c) {
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switch (c) {
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case 'V': return Priority::Verbose;
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case 'D': return Priority::Debug;
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case 'I': return Priority::Info;
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case 'W': return Priority::Warn;
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case 'E': return Priority::Error;
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case 'F': return Priority::Fatal;
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default: return Priority::Unknown;
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}
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}
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static inline long to_long(const char* str, const char* expected_end) {
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char* endptr;
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errno = 0;
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long res = strtol(str, &endptr, 10);
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if (endptr != expected_end) {
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throw std::invalid_argument(std::string(str) + " has trailing text");
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} else if (res == LONG_MAX && errno == ERANGE) {
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throw std::overflow_error(std::string(str) + " is too big");
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} else if (res == LONG_MIN && errno == ERANGE) {
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throw std::underflow_error(std::string(str) + " is too small");
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}
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return res;
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}
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static unsigned long long to_unsigned_long_long(const char* str, const char* expected_end) {
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char* endptr;
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errno = 0;
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unsigned long long res = strtoull(str, &endptr, 10);
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if (endptr != expected_end) {
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throw std::invalid_argument(std::string(str) + " has trailing text");
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} else if (res == ULLONG_MAX && errno == ERANGE) {
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throw std::overflow_error(std::string(str) + " is too big");
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}
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return res;
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}
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std::optional<LogcatEntry> try_parse_logcat_entry(char* buf, size_t length, Buffer buffer) {
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regmatch_t matches[8];
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@ -133,24 +85,25 @@ std::optional<LogcatEntry> try_parse_logcat_entry(char* buf, size_t length, Buff
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return std::nullopt;
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}
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std::optional<std::string> user;
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if (matches[2].rm_so > -1 && matches[2].rm_eo > -1) {
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user = std::string(&buf[matches[2].rm_so], static_cast<size_t>(matches[2].rm_eo - matches[2].rm_so));
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}
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auto group_exists = [](const regmatch_t& match) { return match.rm_so > -1 && match.rm_eo > -1; };
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auto group_long = [&](const regmatch_t& match) { return to_long(&buf[match.rm_so], &buf[match.rm_eo]); };
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auto group_ull = [&](const regmatch_t& match) { return to_ull(&buf[match.rm_so], &buf[match.rm_eo]); };
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auto group_string = [&](const regmatch_t& match) { return std::string(&buf[match.rm_so], static_cast<size_t>(match.rm_eo - match.rm_so)); };
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auto group_priority = [&](const regmatch_t& match) { return priority_from(buf[match.rm_so]); };
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// if pcre2 gives us negative offsets then i'll die
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LogcatEntry logcat_entry = {
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.buffer = buffer,
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// time to be set at the end
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.user = std::move(user),
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.pid = to_unsigned_long_long(&buf[matches[3].rm_so], &buf[matches[3].rm_eo]),
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.tid = to_unsigned_long_long(&buf[matches[4].rm_so], &buf[matches[4].rm_eo]),
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.priority = priority_from(buf[matches[5].rm_so]),
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.tag = std::string(&buf[matches[6].rm_so], static_cast<size_t>(matches[6].rm_eo - matches[6].rm_so)),
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.message = std::string(&buf[matches[7].rm_so], static_cast<size_t>(matches[7].rm_eo - matches[7].rm_so)),
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.user = group_exists(matches[2]) ? std::optional(group_string(matches[2])) : std::nullopt,
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.pid = group_ull(matches[3]),
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.tid = group_ull(matches[4]),
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.priority = group_priority(matches[5]),
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.tag = group_string(matches[6]),
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.message = group_string(matches[7]),
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};
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time_t time = to_long(&buf[matches[1].rm_so], &buf[matches[1].rm_eo]);
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time_t time = group_long(matches[1]);
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localtime_r(&time, &logcat_entry.time);
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return std::move(logcat_entry);
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}
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@ -241,3 +194,69 @@ void to_json(nlohmann::json& j, const Priority& priority) {
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case Priority::Fatal: j = "FATAL"; break;
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}
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}
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static std::string leftpad(const std::string& str, size_t characters) {
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return str.size() >= characters
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? str
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: std::string(characters - str.size(), ' ') + str;
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}
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static inline char to_char(Priority priority) {
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switch (priority) {
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case Priority::Verbose: return 'V';
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case Priority::Debug: return 'D';
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case Priority::Info: return 'I';
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case Priority::Warn: return 'W';
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case Priority::Error: return 'E';
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case Priority::Fatal: return 'F';
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case Priority::Unknown: return 'U';
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}
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}
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static inline std::string rightpad(const std::string& str, size_t characters) {
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return str.size() >= characters
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? str
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: str + std::string(characters - str.size(), ' ');
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}
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static inline Priority priority_from(char c) {
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switch (c) {
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case 'V': return Priority::Verbose;
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case 'D': return Priority::Debug;
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case 'I': return Priority::Info;
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case 'W': return Priority::Warn;
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case 'E': return Priority::Error;
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case 'F': return Priority::Fatal;
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default: return Priority::Unknown;
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}
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}
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static inline long to_long(const char* str, const char* expected_end) {
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char* endptr;
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errno = 0;
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long res = strtol(str, &endptr, 10);
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if (endptr != expected_end) {
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throw std::invalid_argument(std::string(str) + " has trailing text");
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} else if (res == LONG_MAX && errno == ERANGE) {
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throw std::overflow_error(std::string(str) + " is too big");
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} else if (res == LONG_MIN && errno == ERANGE) {
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throw std::underflow_error(std::string(str) + " is too small");
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}
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return res;
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}
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static unsigned long long to_ull(const char* str, const char* expected_end) {
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char* endptr;
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errno = 0;
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unsigned long long res = strtoull(str, &endptr, 10);
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if (endptr != expected_end) {
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throw std::invalid_argument(std::string(str) + " has trailing text");
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} else if (res == ULLONG_MAX && errno == ERANGE) {
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throw std::overflow_error(std::string(str) + " is too big");
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}
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return res;
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}
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