Fixed build files

README.md

@@ -1,19 +1,22 @@
 # Lamb: A Lambda Calculus Engine
 
+If you're reading this on PyPi, go [here](https://git.betalupi.com/Mark/lamb).
+
 ![Lamb screenshot](./misc/screenshot.png)
 
+
 ## Installation
 
-### Method 1: PyPi (not yet)
+### Method 1: PyPi [here](https://pypi.org/project/lamb-engine)
-1. Put this on PyPi
+1. `pip install lamb-engine`
-2. Write these instructions
+2. `lamb`
 
 ### Method 2: Git
 1. Clone this repository.
 2. Make and enter a [virtual environment](https://docs.python.org/3/library/venv.html).
 3. ``cd`` into this directory
 4. Run ``pip install .``
-5. Run ``python .``
+5. Run ``lamb``
 
 -------------------------------------------------
 
@@ -43,7 +46,7 @@ Numbers will automatically be converted to Church numerals. For example, the fol
 If an expression takes too long to evaluate, you may interrupt reduction with `Ctrl-C`. \
 Exit the prompt with `Ctrl-C` or `Ctrl-D`.
 
-There are many useful macros in [macros.lamb](./macros.lamb). Load them with the `:load` command:
+There are many useful macros in [macros.lamb](./macros.lamb). Download the file, then load them with the `:load` command:
 ```
 ==> :load macros.lamb
 ```
@@ -86,20 +89,12 @@ The lines in a file look exactly the same as regular entries in the prompt, but
 
 -------------------------------------------------
 
-
-## Todo (pre-release, in this order):
- - Write "how it works"
- - PyPi package
-
-
 ## Todo:
  - Prevent macro-chaining recursion
  - Cleanup warnings
  - Truncate long expressions in warnings
- - History indexing
- - Show history command
  - Loop detection
- - $\alpha$-equivalence check
+ - α-equivalence check
  - Command-line options (load a file)
  - Unchurch command: make church numerals human-readable
  - Better Syntax highlighting

lamb_engine/__init__.py

@@ -3,4 +3,6 @@ from . import nodes
 from . import parser
 
 from .runner import Runner
-from .runner import StopReason
+from .runner import StopReason
+
+from .__main__ import main

lamb_engine/__main__.py

@@ -1,6 +1,3 @@
-if __name__ != "__main__":
-	raise ImportError("lamb_engine.__main__ should never be imported. Run it directly.")
-
 from prompt_toolkit import PromptSession
 from prompt_toolkit import print_formatted_text as printf
 from prompt_toolkit.formatted_text import FormattedText
@@ -9,53 +6,57 @@ from pyparsing import exceptions as ppx
 
 import lamb_engine
 
+def main():
 
-lamb_engine.utils.show_greeting()
+	lamb_engine.utils.show_greeting()
 
 
-r = lamb_engine.Runner(
+	r = lamb_engine.Runner(
-	prompt_session = PromptSession(
+		prompt_session = PromptSession(
-		style = lamb_engine.utils.style,
+			style = lamb_engine.utils.style,
-		lexer = lamb_engine.utils.LambdaLexer(),
+			lexer = lamb_engine.utils.LambdaLexer(),
-		key_bindings = lamb_engine.utils.bindings
+			key_bindings = lamb_engine.utils.bindings
-	),
+		),
-	prompt_message = FormattedText([
+		prompt_message = FormattedText([
-		("class:prompt", "==> ")
+			("class:prompt", "==> ")
-	])
+		])
-)
+	)
 
-while True:
+	while True:
-	try:
+		try:
-		i = r.prompt()
+			i = r.prompt()
 
-	# Catch Ctrl-C and Ctrl-D
+		# Catch Ctrl-C and Ctrl-D
-	except KeyboardInterrupt:
+		except KeyboardInterrupt:
-		printf("\n\nGoodbye.\n")
+			printf("\n\nGoodbye.\n")
-		break
+			break
-	except EOFError:
+		except EOFError:
-		printf("\n\nGoodbye.\n")
+			printf("\n\nGoodbye.\n")
-		break
+			break
 
-	# Skip empty lines
+		# Skip empty lines
-	if i.strip() == "":
+		if i.strip() == "":
-		continue
+			continue
 
-	# Try to run an input line.
+		# Try to run an input line.
-	# Catch parse errors and point them out.
+		# Catch parse errors and point them out.
-	try:
+		try:
-		x = r.run(i)
+			x = r.run(i)
-	except ppx.ParseException as e:
+		except ppx.ParseException as e:
-		l = len(to_plain_text(r.prompt_session.message))
+			l = len(to_plain_text(r.prompt_session.message))
-		printf(FormattedText([
+			printf(FormattedText([
-			("class:err", " "*(e.loc + l) + "^\n"),
+				("class:err", " "*(e.loc + l) + "^\n"),
-			("class:err", f"Syntax error at char {e.loc}."),
+				("class:err", f"Syntax error at char {e.loc}."),
-			("class:text", "\n")
+				("class:text", "\n")
-		]), style = lamb_engine.utils.style)
+			]), style = lamb_engine.utils.style)
-		continue
+			continue
-	except lamb_engine.nodes.ReductionError as e:
+		except lamb_engine.nodes.ReductionError as e:
-		printf(FormattedText([
+			printf(FormattedText([
-			("class:err", f"{e.msg}\n")
+				("class:err", f"{e.msg}\n")
-		]), style = lamb_engine.utils.style)
+			]), style = lamb_engine.utils.style)
-		continue
+			continue
 
-	printf("")
+		printf("")
+
+if __name__ == "__main__":
+	main()

lamb_engine/utils.py

@@ -101,7 +101,7 @@ def show_greeting():
 		"",
 		"<_h>    |  _.._ _.|_",
 		"    |_(_|| | ||_)</_h>",
-		f"        <_v>{version('lamb')}</_v>",
+		f"        <_v>{version('lamb_engine')}</_v>",
 		"        __  __",
 		"     ,-`  ``  `,",
 		"    (`   <_l>\\</_l>      )",

pyproject.toml

@@ -1,30 +1,28 @@
+[build-system]
+requires = [ "setuptools>=61.0" ]
+build-backend = "setuptools.build_meta"
+
+[tool.setuptools.packages.find]
+where = [ "." ]
+include = ["lamb_engine*"]
+namespaces = false
+
+[project.scripts]
+lamb = "lamb_engine:main"
+
+
+
 [project]
-name = "Lamb"
+name = "lamb_engine"
 description = "A lambda calculus engine"
-
+version = "1.1.5"
-# We use the standard semantic versioning:
-# maj.min.pat
-#
-# Major release:
-# 1.0.0 is the first stable release.
-# Incremented on BIG breaking changes.
-#
-# Minor release:
-# Large bug fixes, new features
-#
-# Patch release:
-# Small, compatible fixes.
-version = "1.1.4"
-
 dependencies = [
 	"prompt-toolkit==3.0.31",
 	"pyparsing==3.0.9"
 ]
-
 authors = [
 	{ name="Mark", email="mark@betalupi.com" }
 ]
-
 readme = "README.md"
 requires-python = ">=3.7"
 license = {text = "GNU General Public License v3 (GPLv3)"}
@@ -35,16 +33,10 @@ classifiers = [
 	"Environment :: Console"
 ]
 
-
 [project.urls]
 "Homepage" = "https://git.betalupi.com/Mark/lamb"
 
-
+# To build:
-[build-system]
+# pip install build twine
-requires = [ "setuptools>=61.0" ]
+# python -m build
-build-backend = "setuptools.build_meta"
+# python -m twine upload dist/*
-
-[tool.setuptools.packages.find]
-where = ["lamb_engine"]
-include = ["lamb_engine*"]
-namespaces = false