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‎.gitignore‎

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*.a
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*.bak
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*.dSYM
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*.o
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*.sw*
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*.test
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*~
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/.bin

‎Godeps/Godeps.json‎

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‎Godeps/Readme‎

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‎Godeps/_workspace/.gitignore‎

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‎Godeps/_workspace/src/github.com/codegangsta/cli‎

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‎LICENSE‎

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* The MIT License (MIT).
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*
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* https://github.com/jonathanmarvens/turing-machine
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*
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* Copyright (c) 2014 Jonathan Barronville (jonathan@belairlabs.com)
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

‎Makefile‎

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##########
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default: build
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##########
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build: deps lint test
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gox -output=".bin/{{.OS}}-{{.Arch}}/turing-machine" -verbose
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clean:
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rm -fr ./.bin
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deps:
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godep go install -v -x ./...
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errcheck:
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errcheck github.com/jonathanmarvens/turing-machine
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fmt:
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gofmt -e -s -w .
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lint: fmt errcheck
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test: lint
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# TODO(@jonathanmarvens): Add some damn tests to fix this.
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.PHONY: default
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.PHONY: build clean deps errcheck fmt lint test

‎README.md‎

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# Turing machinez tho.
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This is a simple turing machine I created for an article I’ve been writing titled, “*Neurons, turing machines, & lambda abstractions: an interesting combo?*”
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## Setup.
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There are 3 ways you can install this on your system in order to play with it.
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-----
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__(1) Download a pre-built binary.__
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You should be able to grab a pre-built binary on the [__Releases__ page](https://github.com/jonathanmarvens/turing-machine/releases) (oh, the power of Go cross-compiling __:)__ … I’m looking at you, GCC).
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-----
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Assuming you have your [Go workspace](http://golang.org/doc/code.html) all set up, the following are your two other options.
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-----
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__(2) Using `go get`.__
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```sh
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go get -t -u github.com/jonathanmarvens/turing-machine
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```
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-----
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__(3) Building from source.__
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```sh
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go get -t -u github.com/kisielk/errcheck github.com/mitchellh/gox github.com/tools/godep
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git clone https://github.com/jonathanmarvens/turing-machine.git $GOPATH/src/github.com/jonathanmarvens/turing-machine
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cd $GOPATH/src/github.com/jonathanmarvens/turing-machine
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make
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```
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Now look in the __.bin/__ directory.
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-----
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## Usage.
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Running `turing-machine help` should be helpful enough about the usage.
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-----
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Feel free to use the example *programs* in [__examples/__](https://github.com/jonathanmarvens/turing-machine/tree/master/examples).
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```sh
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# ./.bin/{OS}-{ARCH}/turing-machine --prog="./examples/n-plus-1.btm.json"
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```
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## Author.
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__Jonathan Barronville__ < [__http://乔纳森.com__](http://乔纳森.com) > ( *jonathan@belairlabs.com* )
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## Acknowledgements.
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Here’s a great document that includes a formal (mathematical) definition of a turing machine (from Cornell University’s CS department): [http://www.cs.cornell.edu/courses/cs4820/2012su/handouts/turingm.pdf](http://www.cs.cornell.edu/courses/cs4820/2012su/handouts/turingm.pdf) … I liked this document more compared to like 6 others I read (the math is clearer and pretty straightforward to follow, there are real examples, the author doesn’t make stupid assumptions about things __-.-__, *et cetera*), so I (loosely) modeled the turing machine around it. You should read it if you want a better mathematical understanding of turing machines! Please don’t rely on Wikipedia for a good understanding of turing machines.
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Here’s a good document, which also includes a formal definition of a turing machine: [http://plato.stanford.edu/entries/turing-machine](http://plato.stanford.edu/entries/turing-machine) … although I didn’t particularly love this document, it’s pretty informative (you probably wanna read it first if you’re new to turing machines).
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## License.
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See [__LICENSE__](https://github.com/jonathanmarvens/turing-machine/blob/master/LICENSE).

‎error/error.go‎

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/**
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* The MIT License (MIT).
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*
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* https://github.com/jonathanmarvens/turing-machine
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*
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* Copyright (c) 2014 Jonathan Barronville (jonathan@belairlabs.com)
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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package error
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import (
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"errors"
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)
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func New(msg string) error {
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return errors.New("[github.com/jonathanmarvens/turing-machine]: " + msg)
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}

‎examples/binary-string-prepend-zero.tm.json‎

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{
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"K": [
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"l", "r0", "r1", "s"
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],
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"s": "s",
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"Σ": [
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"^", "$", "0", "1"
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],
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"x": [
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"^", "0", "1", "0", "1", "1", "1", "0",
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"$"
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],
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"δ": [
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{
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"map": {
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"dir": "R",
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"state": "r0",
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"sym": "^"
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},
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"state": "s",
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"sym": "^"
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},
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{
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"map": {
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"dir": "R",
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"state": "r0",
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"sym": "0"
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},
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"state": "r0",
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"sym": "0"
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},
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{
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"map": {
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"dir": "R",
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"state": "r1",
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"sym": "0"
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},
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"state": "r0",
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"sym": "1"
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},
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{
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"map": {
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"dir": "L",
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"state": "l",
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"sym": "0"
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},
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"state": "r0",
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"sym": "$"
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},
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{
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"map": {
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"dir": "R",
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"state": "r0",
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"sym": "1"
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},
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"state": "r1",
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"sym": "0"
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},
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{
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"map": {
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"dir": "R",
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"state": "r1",
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"sym": "1"
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},
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"state": "r1",
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"sym": "1"
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},
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{
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"map": {
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"dir": "L",
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"state": "l",
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"sym": "1"
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},
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"state": "r1",
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"sym": "$"
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},
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{
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"map": {
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"dir": "L",
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"state": "l",
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"sym": "0"
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},
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"state": "l",
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"sym": "0"
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},
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{
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"map": {
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"dir": "L",
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"state": "l",
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"sym": "1"
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},
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"state": "l",
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"sym": "1"
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},
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{
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"map": {
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"dir": "N",
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"state": "@HALT",
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"sym": "^"
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},
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"state": "l",
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"sym": "^"
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}
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]
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}

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