def invoke(self, rdr, ch):
meta = read(rdr, True)
obj = read(rdr, True)
if isinstance(meta, Keyword):
meta = rt.hashmap(meta, true)
if rt.satisfies_QMARK_(rt.IMeta.deref(), obj):
return rt.with_meta(obj, rt.merge(meta, rt.meta(obj)))
return obj
def invoke(self, rdr, ch):
meta = read_inner(rdr, True)
obj = read_inner(rdr, True)
if isinstance(meta, Keyword):
meta = rt.hashmap(meta, true)
if isinstance(meta, Symbol):
meta = rt.hashmap(keyword(u"tag"), meta)
if rt._satisfies_QMARK_(rt.IMeta.deref(), obj):
return rt.with_meta(obj, rt.merge(meta, rt.meta(obj)))
return obj
def read_inner(rdr, error_on_eof, always_return_form=True):
try:
eat_whitespace(rdr)
except EOFError as ex:
if error_on_eof:
runtime_error(u"Unexpected EOF while reading",
u"pixie.stdlib/EOFWhileReadingException")
return eof
ch = rdr.read()
if isinstance(rdr, MetaDataReader):
meta = rdr.get_metadata()
else:
meta = nil
macro = handlers.get(ch, None)
if macro is not None:
itm = macro.invoke(rdr, ch)
if always_return_form and itm == rdr:
return read_inner(rdr, error_on_eof, always_return_form=always_return_form)
elif is_digit(ch):
itm = read_number(rdr, ch)
elif ch == u"-":
ch2 = rdr.read()
if is_digit(ch2):
rdr.unread()
itm = read_number(rdr, ch)
else:
rdr.unread()
itm = read_symbol(rdr, ch)
else:
itm = read_symbol(rdr, ch)
if itm != rdr:
if rt.has_meta_QMARK_(itm):
itm = rt.with_meta(itm, rt.merge(meta, rt.meta(itm)))
return itm
def read(rdr, error_on_eof):
try:
eat_whitespace(rdr)
except EOFError as ex:
if error_on_eof:
raise ex
return eof
ch = rdr.read()
if isinstance(rdr, MetaDataReader):
meta = rdr.get_metadata()
else:
meta = nil
macro = handlers.get(ch, None)
if macro is not None:
itm = macro.invoke(rdr, ch)
elif is_digit(ch):
itm = read_number(rdr, ch)
elif ch == u"-":
ch2 = rdr.read()
if is_digit(ch2):
rdr.unread(ch2)
itm = read_number(rdr, ch)
else:
rdr.unread(ch2)
itm = read_symbol(rdr, ch)
else:
itm = read_symbol(rdr, ch)
if rt.has_meta_QMARK_(itm):
itm = rt.with_meta(itm, rt.merge(meta, rt.meta(itm)))
return itm
def read(rdr, error_on_eof):
try:
eat_whitespace(rdr)
except EOFError as ex:
if error_on_eof:
raise ex
return eof
ch = rdr.read()
if isinstance(rdr, MetaDataReader):
meta = rdr.get_metadata()
else:
meta = nil
macro = handlers.get(ch, None)
if macro is not None:
itm = macro.invoke(rdr, ch)
elif is_digit(ch):
itm = read_number(rdr, ch)
elif ch == u"-":
ch2 = rdr.read()
if is_digit(ch2):
rdr.unread(ch2)
itm = read_number(rdr, ch)
else:
rdr.unread(ch2)
itm = read_symbol(rdr, ch)
else:
itm = read_symbol(rdr, ch)
if rt.has_meta_QMARK_(itm):
itm = rt.with_meta(itm, rt.merge(meta, rt.meta(itm)))
return itm
