hy/bin/hy
Konrad Hinsen 0c56885d42 Use __future__.division for all Hy code
Fixes #106
Note: This is implemented by replacing all calls to Python's
builtin "compile" function by calls to hy.importer.compile_,
which adds the "future division" flag. Anyone using "compile"
in future work will have to remember this.
2013-04-12 05:23:25 +02:00

143 lines
3.3 KiB
Python
Executable File

#!/usr/bin/env python
import hy
import sys
import os
if len(sys.argv) > 1:
from hy.importer import import_file_to_module
sys.argv.pop(0)
import_file_to_module("__main__", sys.argv[0])
sys.exit(0) # right?
import readline
import code
import ast
from hy.lex.states import Idle, LexException
from hy.lex.machine import Machine
from hy.compiler import hy_compile
from hy.core import process
from hy.importer import compile_
import hy.completer
from hy.macros import macro
from hy.models.expression import HyExpression
from hy.models.string import HyString
from hy.models.symbol import HySymbol
_machine = Machine(Idle, 1, 0)
class HyREPL(code.InteractiveConsole):
def runsource(self, source, filename='<input>', symbol='single'):
global _machine
try:
_machine.process(source + "\n")
except LexException as e:
_machine = Machine(Idle, 1, 0)
self.showsyntaxerror(filename)
return False
if type(_machine.state) != Idle:
_machine = Machine(Idle, 1, 0)
return True
try:
tokens = process(_machine.nodes)
except Exception:
_machine = Machine(Idle, 1, 0)
self.showtraceback()
return False
_machine = Machine(Idle, 1, 0)
try:
_ast = hy_compile(tokens, root=ast.Interactive)
code = compile_(_ast, filename, symbol)
except Exception:
self.showtraceback()
return False
self.runcode(code)
return False
sys.ps1 = "=> "
sys.ps2 = "... "
history = os.path.expanduser("~/.hy-history")
readline.parse_and_bind("set blink-matching-paren on")
@macro("koan")
def koan_macro(tree):
return HyExpression([HySymbol('print'),
HyString("""
Ummon asked the head monk, "What sutra are you lecturing on?"
"The Nirvana Sutra."
"The Nirvana Sutra has the Four Virtues, hasn't it?"
"It has."
Ummon asked, picking up a cup, "How many virtues has this?"
"None at all, " said the monk.
"But ancient people said it had, didn't they?" said Ummon.
"Whatdo you think of what they said?"
Ummon struck the cup and asked, "You understand?"
"No," said the monk.
"Then," said Ummon, "You'd better go on with your lectures on the sutra."
""")])
@macro("ideas")
def koan_macro(tree):
return HyExpression([HySymbol('print'),
HyString("""
=> (import-from sh figlet)
=> (figlet "Hi, Hy!")
_ _ _ _ _ _
| | | (_) | | | |_ _| |
| |_| | | | |_| | | | | |
| _ | |_ | _ | |_| |_|
|_| |_|_( ) |_| |_|\__, (_)
|/ |___/
;;; string things
(.join ", " ["what" "the" "heck"])
;;; this one plays with command line bits
(import-from sh cat grep)
(-> (cat "/usr/share/dict/words") (grep "-E" "bro$"))
;;; filtering a list w/ a lambda
(filter (lambda [x] (= (% x 2) 0)) (range 0 10))
;;; swaggin' functional bits (Python rulez)
(max (map (lambda [x] (len x)) ["hi" "my" "name" "is" "paul"]))
""")])
try:
readline.read_history_file(history)
except IOError:
open(history, 'a').close()
readline.parse_and_bind("tab: complete")
hr = HyREPL()
hr.interact("{appname} {version}".format(
appname=hy.__appname__,
version=hy.__version__
))
readline.write_history_file(history)