Hash :
871c5e84
Author :
Thomas de Grivel
Date :
2021-12-30T14:52:37
fix spec
KV : SP* K SP* ':' SP* V SP*
M1 : KV (',' KV)* ','? SP*
M2 : SP* '{' M1 '}' SP*
M3 : SP*
M : M2 | M1 | M3
K1 = V1 : [^{}:"\s]+
K2 = V2 : '"' ([^"] | Q)+ '"'
Q : '\"' | '\\' | '\n' | '\r' | '\t' | '\v'
K3 = V3 : '"""' .*? '"""'
K4 = V4 : '<<' D \s .*? D
V5 : M2
K : K1 | K2 | K3 | K4
V : V1 | V2 | V3 | V4 | V5
The parser will emit events for KV.
Usage:
kv INPUT <<EOF
A
B B1
C C1 C2
EOF
Will output concatenated values of INPUT for keys A, B.B1 and C.C1.C2.
kv -quote < INPUT
Will quote INPUT according to (K1 | K2 | K3 | K4) whichever is best.
The reference implementation of kv is implemented in ANSI C.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78
# kv 1.0
## Synopsis
![kv-1.0.jpg](https://git.kmx.io/kmx.io/kv/_blob/master/doc/kv-1.0.jpg)
## Specification
```
KV : SP* K SP* ':' SP* V SP*
M1 : KV (',' KV)* ','? SP*
M2 : SP* '{' M1 '}' SP*
M3 : SP*
M : M2 | M1 | M3
K1 = V1 : [^{}:"\s]+
K2 = V2 : '"' ([^"] | Q)+ '"'
Q : '\"' | '\\' | '\n' | '\r' | '\t' | '\v'
K3 = V3 : '"""' .*? '"""'
K4 = V4 : '<<' D \s .*? D
V5 : M2
K : K1 | K2 | K3 | K4
V : V1 | V2 | V3 | V4 | V5
```
## Parser
The parser will emit events for KV.
## Command line interface
```
Usage:
kv INPUT <<EOF
A
B B1
C C1 C2
EOF
Will output concatenated values of INPUT for keys A, B.B1 and C.C1.C2.
kv -quote < INPUT
Will quote INPUT according to (K1 | K2 | K3 | K4) whichever is best.
```
## Reference implementation
The reference implementation of kv is implemented in ANSI C.
## Other implementations
### TODO
- Common Lisp
- Elixir
- Go
- Python
- Ruby
- Rust
- Java
- Javascript