TLDRML

Project Description
Python/JSON inspired markup language designed to be extremely terse and DRY.

i.e.

configuration
  appSettings
    add key=path value="C:\Temp\"
    
  connectionStrings
    add #userdb connectionString="Data Source=sqlsrv;Initial Catalog=userdb;User ID=userrw;Password=secret"
  
  system.net
    mailSettings
      smtp from=user@theinter.net
        network host=localhost

Which turns into this...

<configuration>
  <appSettings>
    <add key="path" value="C:\Temp\"/>
  </appSettings>
  <connectionStrings>
    <add name="userdb" connectionString="Data Source=sqlsrv;Initial Catalog=userdb;User ID=userrw;Password=secret"/>
  </connectionStrings>
  <system.net>
    <mailSettings>
      <smtp from="user@theinter.net">
        <network host="localhost"/>
      </smtp>
    </mailSettings>
  </system.net>
</configuration>

Here's the syntax...

doc > element+

element > LITERAL attribute* NEWLINE
        | LITERAL attribute* NEWLINE INDENT element+ OUTDENT

attribute > NAME-DECLARATION value
          | LITERAL EQUALS value

value > LITERAL
      | STRING


LITERAL: [^>=\"\s\$#]+
STRING: "([^"\\]|\\.)*"
EQUALS: =
NAME-DECLARATION: #
NEWLINE: \r\n|\r|\n

INDENT and OUTDENT are special tokens that are emitted whenever the indentation
level changes. When tokens are encountered in a column greater than the previous
line, an INDENT token is emitted. When tokens are in encountered in a column less
than the previous line, an OUTDENT token is emitted.