Response:
    
    code[msg]:[colon-separated features]
    

Features:

    hVALUE=VALUE        Set header
    bVALUE              Set body
    cVALUE              Set Content-Type header
    lVALUE              Set Location header

    dOFF|r              Disconnect after OFF bytes, measured from the beginning of the response.
    pNUM|f,OFF|r|a      Pause for NUM seconds after OFF bytes. 

Value Specifiers:

    @500k           - 500k of random data
    @500k,utf8      - 500k of utf8. Other specifiers: utf8,alphanum,alpha,printable
    "foo"           - literal
    <path           - load from path under data directory
    <"path"         - load from path under data directory


Examples:
    200:b500k
    404:pb5:b1k,printable
    200:t"text/json":pr5:b1k
    200:b1k:xr


Anchors:

    Passed on command-line:
        -a "/foo/bar=200:!/foo"


Built-in help

    /help
    /explain/expression