Ecosyste.ms: Awesome
An open API service indexing awesome lists of open source software.
https://github.com/mguludag/chrono_parse
parse date_times with {fmt} style into std::chrono::time_point {WIP}
https://github.com/mguludag/chrono_parse
chrono cpp cpp11 cpp14 cpp17 cpp20 datetime header-only iso8601 iso8601-parser parser
Last synced: 3 days ago
JSON representation
parse date_times with {fmt} style into std::chrono::time_point {WIP}
- Host: GitHub
- URL: https://github.com/mguludag/chrono_parse
- Owner: mguludag
- License: mit
- Created: 2023-04-15T22:32:22.000Z (over 1 year ago)
- Default Branch: main
- Last Pushed: 2024-06-24T21:16:53.000Z (3 months ago)
- Last Synced: 2024-09-24T20:59:01.940Z (3 days ago)
- Topics: chrono, cpp, cpp11, cpp14, cpp17, cpp20, datetime, header-only, iso8601, iso8601-parser, parser
- Language: C++
- Homepage: https://mguludag.github.io/chrono_parse/
- Size: 234 KB
- Stars: 7
- Watchers: 2
- Forks: 0
- Open Issues: 1
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
# chrono_parse
parse date and times with {fmt} style into`std::chrono::time_point` {WIP}
## [Usage](https://godbolt.org/z/nb3qdMYza)
```C++
#include "mgutility/chrono/parse.hpp"
// {fmt} for printing
#include
#include
int main() {
const auto chrono_time = mgutility::chrono::parse("{:%FT%T.%f%z}", "2023-04-16T00:05:23.999+0100");
fmt::print("{:%F %T}\n", chrono_time); // prints 2023-04-15 23:05:23.999000000 ({fmt} trunk version)
}
```
## Format specifiers
| Format Specifier | Explanation |
| ---------------- | ------------------------------------------------------------------ |
| `%Y` | parses **year** as a decimal number, e.g. 2023 |
| `%m` | parses **month** as a decimal number, e.g. 05 |
| `%d` | parses **day** as a decimal number, e.g. 14 |
| `%H` | parses **hour** as a decimal number, e.g. 16 |
| `%M` | parses **minute** as a decimal number, e.g. 31 |
| `%S` | parses **second** as a decimal number, e.g. 59 |
| `%F` | parses **year-month-day** as an iso8601 date, e.g. 2023-05-04 |
| `%T` | parses **hour:minute:second** as an iso8601 time, e.g. 16:31:59 |
| `%f` | parses **milliseconds** as a decimal number, e.g. 869 |
| `%z` | parses **timezone** as a decimal number, e.g. +0100 or -01:00 or Z |
## Notes
- Currently not supported all format specifiers (at least ISO-8601 capable now)
## [Performance](https://quick-bench.com/q/ry5gUzPplSBQenbLVBqRt1ns2-k)
- Performance is ~50x faster than `std::get_time` + `std::mktime`.
