def run_repl(comp=None):
"""
Starts the repl. Assumes that RT.init has allready be called.
"""
print "clojure-py", VERSION
print "Python", sys.version
if comp is None:
curr = currentCompiler.get(lambda: None)
if curr == None:
comp = Compiler()
currentCompiler.set(comp)
else:
comp = curr
comp.setNS(symbol("user"))
core = sys.modules["clojure.core"]
for i in dir(core):
if not i.startswith("_"):
setattr(comp.getNS(), i, getattr(core, i))
last3 = [None, None, None]
def execute(string):
r = StringReader(string)
s = read(r, False, None, True)
res = comp.compile(s)
return comp.executeCode(res)
while 1:
#for i, value in enumerate(last3, 1):
# v = findVar(symbol("clojure.core", "*%s" % i))
# if isinstance(value, Var):
# v.bindRoot(value.deref())
# v.setMeta(value.meta())
# else:
# v.bindRoot(value)
try:
line = raw_input(comp.getNS().__name__ + "=> ")
except EOFError:
print
break
if not line:
continue
invalid = False
while 1:
unbalance = unbalanced(line)
if unbalance == -1:
invalid = True
break
elif unbalance is False:
break
try:
new_line = '\n' + raw_input('.' * len(comp.getNS().__name__) + '.. ')
except EOFError:
break
if not new_line.strip().startswith(';'):
line += new_line
if invalid:
print "Invalid input"
continue
# Propogate break from above loop.
if unbalanced(line):
break
try:
out = execute(line)
except Exception:
traceback.print_exc()
else:
last3.pop()
last3.insert(0, out)
RT.printTo(out)
def run_repl(opts, comp=None):
"""Initializes and runs the REPL. Assumes that RT.init has been called.
Repeatedly reads well-formed forms from stdin (with an interactive prompt
if a tty) and evaluates them (and prints the result if a tty). Exits on
EOF.
"""
if not opts.quiet and os.isatty(0):
print VERSION_MSG
if comp is None:
curr = currentCompiler.get(lambda: None)
if curr == None:
comp = Compiler()
currentCompiler.set(comp)
else:
comp = curr
comp.setNS(Symbol("user"))
core = sys.modules["clojure.core"]
for i in dir(core):
if not i.startswith("_"):
setattr(comp.getNS(), i, getattr(core, i))
line = opts.cmd
last3 = [None, None, None]
def firstLinePrompt():
return comp.getNS().__name__ + "=> " if os.isatty(0) else ""
def continuationLinePrompt():
return "." * len(comp.getNS().__name__) + ".. " if os.isatty(0) else ""
while True:
# Evaluating before prompting caters for initially given forms.
r = StringReader(line)
while True:
try:
s = read(r, False, None, True)
if s is None:
break
res = comp.compile(s)
out = comp.executeCode(res)
except Exception:
traceback.print_exc()
else:
if os.isatty(0):
RT.printTo(out)
last3.pop()
last3.insert(0, out)
for i, value in enumerate(last3, 1):
v = findItem(Namespace("clojure.core"),
Symbol("*{0}".format(i)))
if isinstance(value, Var):
v.bindRoot(value.deref())
v.setMeta(value.meta())
else:
v.bindRoot(value)
try:
line = raw_input(firstLinePrompt())
while unbalanced(line):
line += "\n" + raw_input(continuationLinePrompt())
except BracketsException as exc:
print exc
continue
except EOFError:
print
break
