Finish Chapter 1

Author: Ailrun

.gitignore

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+# Haskell
+*.hi
+*.o
+
+# Cabal
+*.cabal
+
+# Haskell Tool Stack
+.stack-work/
+dist/
+
+# Emacs
+.dir-locals.el
+*~

LICENSE

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+Copyright Junyoung Clare Jang (c) 2019
+
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the following
+      disclaimer in the documentation and/or other materials provided
+      with the distribution.
+
+    * Neither the name of Junyoung Clare Jang nor the names of other
+      contributors may be used to endorse or promote products derived
+      from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

README.md

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+# core-lang-haskell
+
+This repository is about an implementation of a simple functional language based on [Simon\[1\]][^1].
+
+[^1]: Simon Peyton Jones. January 1992. _Implementing functional languages: a tutorial_. Prentice Hall

Setup.hs

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+import Distribution.Simple
+main = defaultMain

app/Main.hs

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+module Main where
+
+main :: IO ()
+main = putStrLn "Do nothing"

exercises/exercise1-1.xls

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+spec-version:        0.31.0
+name:                core-lang-haskell
+version:             0.1.0.0
+#synopsis:
+#description:
+category:            Web
+homepage:            https://github.com/Ailrun/core-lang-haskell#readme
+bug-reports:         https://github.com/Ailrun/core-lang-haskell/issues
+author:              Junyoung Clare Jang
+maintainer:          [email protected]
+copyright:           2019 Junyoung Clare Jang
+license:             BSD3
+license-file:        LICENSE
+#tested-with:
+#build-type:          Simple
+extra-source-files:
+  - README.md
+#extra-doc-files:
+#data-files:
+#data-dir:
+github: Ailrun/core-lang-haskell
+#custom-setup:
+  #dependencies:
+
+#flags:
+
+library:
+  ## Common fields
+  source-dirs:
+    - src
+  ## Library fields
+  #exposed:
+  #exposed-modules:
+  #generated-exposed-modules:
+  #other-modules:
+  #generated-other-modules:
+  #reexported-modules:
+  #signatures:
+
+#internal-libraries:
+
+executables:
+  core-lang-haskell:
+    ## Common fields
+    source-dirs:
+      - app
+    ghc-options:     -threaded -rtsopts -with-rtsopts=-N
+    dependencies:
+      - core-lang-haskell
+    ## Executable fields
+    main:            Main.hs
+    #other-modules:
+    #generated-other-modules:
+
+#executable:
+
+tests:
+  core-lang-haskell-test:
+    ## Common fields
+    source-dirs:
+      - test
+    ghc-options:     -threaded -rtsopts -with-rtsopts=-N
+    dependencies:
+      - core-lang-haskell
+      - hspec
+      - QuickCheck
+    ## Test fields
+    main:            Spec.hs
+    #other-modules:
+    #generated-other-modules:
+
+#benchmarks:
+
+#defaults:
+  #github:
+  #ref:
+  #path:
+  #local:
+
+## Common fields
+#buildable:
+#source-dirs:
+#default-extensions:
+#other-extensions:
+#ghc-options:
+#ghc-prof-options:
+#ghcjs-options:
+#cpp-options:
+#cc-options:
+#c-sources:
+#cxx-options:
+#cxx-sources:
+#js-sources:
+#extra-lib-dirs:
+#extra-libraries:
+#include-dirs:
+#install-includes:
+#frameworks:
+#extra-frameworks-dirs:
+#ld-options:
+dependencies:
+  - base >= 4.7 && < 5
+#pkg-config-dependencies:
+#build-tools:
+#system-build-tools:
+#when: