Began implementing the funge field

README.md

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+# NimFunge98 : a Funge-98 interpreter written in nim
+
+This repository contains code for a nim program that can interpret a valid [Funge-98](https://github.com/catseye/Funge-98/blob/master/doc/funge98.markdown) program. It will soon pass the [mycology test suite](https://github.com/Deewiant/Mycology).
+
+Current limitations are :
+- it is not finished!
+- currently does not implement any fingerprints
+- does not implement concurrent execution with the `t` command
+- does not implement file I/O with the `i` and `o` commands
+- does not implement system execution with the `=` command
+
+## Contents
+
+- [Dependencies](#dependencies)
+- [Quick install](#quick-install)
+- [Usage](#usage)
+- [Building](#building)
+
+## Dependencies
+
+nim is required. Only nim version >= 1.4.8 on linux amd64 (Gentoo) is being regularly tested.
+
+## Quick Install
+
+To install, clone this repository then run :
+```
+nimble install
+```
+
+## Usage
+
+Launching the interpreter is as simple as :
+```
+nimfunge98 -f something.b98
+```
+
+The interpreter will then load and execute the specified Funge-98 program until the program normally terminates or is interrupted or killed.
+
+## Building
+
+For a debug build, use :
+```
+nimble build
+```
+
+For a release build, use :
+```
+nimble build -d:release
+```
+
+To run unit tests, use :
+```
+nimble tests
+```
+
+To run integration tests, use :
+```
+nimble integration
+```
+
+To calculate the code coverage of tests, use :
+```
+nimble coverage
+```

nimfunge98.nimble

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+# Package
+
+version       = "0.1.0"
+author        = "Julien Dessaux"
+description   = "A Funge-98 interpreter written in nim"
+license       = "EUPL-1.2"
+srcDir        = "src"
+bin           = @["nimfunge98"]
+
+# Dependencies
+
+requires "nim >= 1.4.8"
+
+# Tasks
+
+task integration, "Runs the test suite":
+  exec "testament all"
+
+task coverage, "Run all tests and calculate coverage":
+  exec "coco --target 'tests/**/*.nim' --cov '!tests,!nimcache'"
+
+task clean, "Clean":
+  exec "rm -rf coverage lcov.info nimcache"
+  exec "rm -rf outputGotten.txt testresults tests/megatest tests/megatest.nim"

src/field.nim

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+type
+  Line = ref object
+    x, l: int
+    columns: seq[int]
+
+  Field* = ref object
+    x, y: int
+    lx, ly: int
+    lines: seq[Line]
+
+proc get*(f: Field, x, y: int): int =
+  if y >= f.y and y < f.y + f.ly:
+    let l = f.lines[y-f.y]
+    if x >= l.x and x < l.x + l.l:
+      return l.columns[x-l.x]
+  return int(' ')
+
+proc isIn*(f: Field, x, y: int): bool =
+  return x >= f.x and y >= f.y and x < f.x+f.lx and y < f.y+f.ly
+
+when defined(unitTesting):
+  let minimal = Field(
+    x: 0,
+    y: 0,
+    lx: 1,
+    ly: 1,
+    lines: @[
+      Line(x: 0, l: 1, columns: @[int('@')])
+    ]
+  )
+  suite "Field":
+    test "Field.get":
+      check minimal.get(0,0) == int('@')
+      check minimal.get(1,0) == int(' ')
+    test "Field.isIn":
+      check minimal.isIn(0, 0) == true
+      check minimal.isIn(1, 0) == false

src/nimfunge98.nim

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+import nimfunge98/field/field
+
+let f:Field
+
+echo f.get(3,2)

tests/config.nims

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+switch("path", "$projectDir/../src")
+switch("define", "unitTesting")

tests/testField.nim

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+import unittest
+
+include field