Chema

Generate JSON Schema from a lightweight DSL.

This is originally intended to generate a definitions section of swagger specifications

Install

Download a binary from https://github.com/KeenS/chema/releases or if you have setup cargo, use `cargo install like below

$ cargo install chema

Usage

``` chema 0.0.2 Sunrin SHIMURA (keen) 3han5chou7@gmail.com An external DSL for JSON Schema

USAGE: chema [FLAGS] [OPTIONS]

FLAGS: -h, --help Prints help information --no-swagger don't use swagger spesific notation (e.g. nullable) --pack pack (unprettify) the output -V, --version Prints version information

OPTIONS: --format output format (json|yaml) [default: json]

ARGS: input file ```

Syntax

``` TOP = ITEMS ITEMS = ITEM+ ITEM = TYPEDEF

TYPEDEF = "type" IDENT "=" TYPE ";"

TYPE = "null" | "boolean" | "object" | "number" | "string" | "integer" | IDENT | "[" TYPE "]" | STRUCT | ENUM | TYPE "?" | "format" "(" STRING ")" | TYPE "&" TYPE | TYPE "|" TYPE | "(" TYPE ")"

STRUCT = "struct" "{" (FIELD ",")+ "}" FIELD = IDENT ":" TYPE

ENUM = "enum" "{" (VARIANT",")+ "}" VARIANT = STRING

IDENT = [a-zA-Z][a-zA-Z0-9]* STRIING = "\"" ([^"\]|.)* "\""

COMMENT = "//" any "\n" | "/" any "/" DOC_COMMENT = "/*" any "/" ```

Example

See etc. *.jsds are the sources and *.jsons are the generated files.