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"""
Module containing Fortran2008 Explicit_Coshape_Spec rule R511
"""
from fparser.common.splitline import string_replace_map
from fparser.two.Fortran2008.lower_cobound_r512 import Lower_Cobound
from fparser.two.utils import SeparatorBase
[docs]
class Explicit_Coshape_Spec(SeparatorBase): # R511
"""
Fortran 2008 rule R511
explicit-coshape-spec is [ coshape-spec-list , ] [ lower-cobound : ] *
Associated constraint is:
"C529 (R511) A lower-cobound or upper-cobound that is not a constant
expression shall appear only in a subprogram, BLOCK construct, or
interface body."
C529 is currently not checked - issue #259.
"""
[docs]
use_names = ["Coshape_Spec_List", "Lower_Cobound"]
@staticmethod
[docs]
def match(string):
"""
Implements the matching for explicit coarray shape specification.
:param str string: the string to match as deferred shape.
:return: `None` if there is no match, otherwise a 2-tuple \
containing matched coshape-spec-list or `None` and \
matched lower-cobound or `None`.
:rtype: `NoneType` or \
(:py:class:`fparser.two.Fortran2008.Coshape_Spec_List` or `None`, \
:py:class:`fparser.two:Fortran2008.Lower_Cobound` or `None`)
"""
# Avoid circular dependencies by importing here.
# pylint: disable=import-outside-toplevel
from fparser.two.Fortran2008 import Coshape_Spec_List
if not string.endswith("*"):
return None
line = string[:-1].rstrip()
if not line:
return (None, None)
if line.endswith(":"):
line, repmap = string_replace_map(line[:-1].rstrip())
sep_pos = line.rfind(",")
if sep_pos == -1:
return (None, Lower_Cobound(repmap(line)))
return (
Coshape_Spec_List(repmap(line[:sep_pos].rstrip())),
Lower_Cobound(repmap(line[sep_pos + 1 :].lstrip())),
)
if not line.endswith(","):
return None
line = line[:-1].rstrip()
return (Coshape_Spec_List(line), None)
[docs]
def tostr(self):
"""
Converts the explicit coarray shape specification to string.
:return: the shape specification as string.
:rtype: str
"""
s = ""
if self.items[0]:
s += str(self.items[0]) + ", "
if self.items[1]:
s += str(self.items[1]) + " : "
s += "*"
return s