class

Crowbar::Builder

Inherits Reference < Object

Top-level DSL Builder for Crowbar

Constructors

new(seed : UInt64 | Nil = nil)
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Instance methods

add_sample(sample : Buffer | Bytes | String)

Add secondary sample for inter-sample splicing

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bmp
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build

Build and return the configured Engine

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engine
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evolution

Configure Genetic Algorithm & Feedback

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fixup

Register post-mutation fixup callback

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frame(name : String | Symbol, &)

Define a declarative binary protocol frame

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ftp
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grammar(name : String | Symbol, max_depth : Int32 = 8, &)

Define a context-free generative grammar

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harvest(feedback : String) : Array(String)

Extracts diagnostic tokens from error text into the active dictionary

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http
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markdown
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match(pattern : Regex, group : Int32 = 0, name : String | Nil = nil, &)

Define a scoped regex match

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mp3
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packet
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pattern(name : Symbol)

Configure mutation pattern (:once, :many, :burst)

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pdf
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png
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preserve(format : Symbol)

Enable structure-preserving rules (:json, :yaml, :http, :dns, :csv, :xml, :url, :tlv, :base64, :varint, :ftp, :sql, :png, :bmp, :wav, :mp3, :wad, :pdf)

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preserve(format : Symbol, &block : Rule -> Nil)
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preserve_format(format : Symbol)
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preserve_format(format : Symbol, &block : Rule -> Nil)
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scope(name : String | Symbol, bytes range : Range(B, E), &) forall B, E

Define a scoped byte range

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scope(name : String | Symbol, selector : Selector, &)

Define a scoped region with an explicit selector instance

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scope(name : String | Symbol, field index : Int32, delimiter : UInt8 | Char | String = ',', &)

Define a scoped delimited field/column

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scope(name : String | Symbol, chars kind : Selectors::CharacterClass::Kind | Symbol, &)

Define a scoped character class

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scope(name : String | Symbol, stride step : Int32, offset : Int32 = 0, length : Int32 = 1, &)

Define a scoped stride / periodic pattern

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scope(name : String | Symbol, entropy mode : Selectors::Entropy::Mode | Symbol, &)

Define a scoped entropy target

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seed(val : UInt64 | Int32 | Int64)

Set PRNG seed

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seek(offset : Int)

Fast-forwards PRNG state by offset

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seven_zip
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sql
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tar
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template(spec : String)

Configure output envelope / template

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unique(capacity : Int32 = 10000)

Configure deduplication uniqueness filter

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wad
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wav
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zip
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