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81 lines
3.6 KiB
81 lines
3.6 KiB
[](https://app.circleci.com/pipelines/github/leodido/go-urn) [](https://codecov.io/gh/leodido/go-urn) [](https://godoc.org/github.com/leodido/go-urn)
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**A parser for URNs**.
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> As seen on [RFC 2141](https://tools.ietf.org/html/rfc2141#ref-1).
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[API documentation](https://godoc.org/github.com/leodido/go-urn).
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## Installation
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```
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go get github.com/leodido/go-urn
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```
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## Performances
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This implementation results to be really fast.
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Usually below ½ microsecond on my machine<sup>[1](#mymachine)</sup>.
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Notice it also performs, while parsing:
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1. fine-grained and informative erroring
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2. specific-string normalization
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```
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ok/00/urn:a:b______________________________________/-4 20000000 265 ns/op 182 B/op 6 allocs/op
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ok/01/URN:foo:a123,456_____________________________/-4 30000000 296 ns/op 200 B/op 6 allocs/op
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ok/02/urn:foo:a123%2c456___________________________/-4 20000000 331 ns/op 208 B/op 6 allocs/op
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ok/03/urn:ietf:params:scim:schemas:core:2.0:User___/-4 20000000 430 ns/op 280 B/op 6 allocs/op
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ok/04/urn:ietf:params:scim:schemas:extension:enterp/-4 20000000 411 ns/op 312 B/op 6 allocs/op
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ok/05/urn:ietf:params:scim:schemas:extension:enterp/-4 20000000 472 ns/op 344 B/op 6 allocs/op
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ok/06/urn:burnout:nss______________________________/-4 30000000 257 ns/op 192 B/op 6 allocs/op
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ok/07/urn:abcdefghilmnopqrstuvzabcdefghilm:x_______/-4 20000000 375 ns/op 213 B/op 6 allocs/op
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ok/08/urn:urnurnurn:urn____________________________/-4 30000000 265 ns/op 197 B/op 6 allocs/op
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ok/09/urn:ciao:@!=%2c(xyz)+a,b.*@g=$_'_____________/-4 20000000 307 ns/op 248 B/op 6 allocs/op
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ok/10/URN:x:abc%1dz%2f%3az_________________________/-4 30000000 259 ns/op 212 B/op 6 allocs/op
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no/11/URN:-xxx:x___________________________________/-4 20000000 445 ns/op 320 B/op 6 allocs/op
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no/12/urn::colon:nss_______________________________/-4 20000000 461 ns/op 320 B/op 6 allocs/op
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no/13/urn:abcdefghilmnopqrstuvzabcdefghilmn:specifi/-4 10000000 660 ns/op 320 B/op 6 allocs/op
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no/14/URN:a!?:x____________________________________/-4 20000000 507 ns/op 320 B/op 6 allocs/op
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no/15/urn:urn:NSS__________________________________/-4 20000000 429 ns/op 288 B/op 6 allocs/op
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no/16/urn:white_space:NSS__________________________/-4 20000000 482 ns/op 320 B/op 6 allocs/op
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no/17/urn:concat:no_spaces_________________________/-4 20000000 539 ns/op 328 B/op 7 allocs/op
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no/18/urn:a:/______________________________________/-4 20000000 470 ns/op 320 B/op 7 allocs/op
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no/19/urn:UrN:NSS__________________________________/-4 20000000 399 ns/op 288 B/op 6 allocs/op
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```
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---
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* <a name="mymachine">[1]</a>: Intel Core i7-7600U CPU @ 2.80GHz
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---
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## Example
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```go
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package main
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import (
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"fmt"
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"github.com/leodido/go-urn"
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)
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func main() {
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var uid = "URN:foo:a123,456"
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u, ok := urn.Parse([]byte(uid))
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if !ok {
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panic("error parsing urn")
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}
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fmt.Println(u.ID)
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fmt.Println(u.SS)
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// Output:
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// foo
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// a123,456
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}
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```
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[](https://github.com/igrigorik/ga-beacon) |