`numpy.f2py.crackfortran:param_parse`

source: /numpy/f2py/crackfortran.py:3026

Signature

def param_parse(d, params)

Summary

Recursively parse array dimensions.

Extended Summary

Parses the declaration of an array variable or parameter dimension keyword, and is called recursively if the dimension for this array is a previously defined parameter (found in params).

Parameters

d : str: Fortran expression describing the dimension of an array.
params : dict: Previously parsed parameters declared in the Fortran source file.

Returns

out : str: Parsed dimension expression.

Examples

* If the line being analyzed is `integer, parameter, dimension(2) :: pa = (/ 3, 5 /)` then `d = 2` and we return immediately, with

d = '2'

✓

param_parse(d, params)

⚠

Traceback (most recent call last):
  File "<doctest numpy.f2py.crackfortran:param_parse[0]>", line 1, in <module>
    param_parse(d, params)
                   ^^^^^^
NameError: name 'params' is not defined

* If the line being analyzed is `integer, parameter, dimension(pa) :: pb = (/1, 2, 3/)` then `d = 'pa'`; since `pa` is a previously parsed parameter, and `pa = 3`, we call `param_parse` recursively, to obtain

d = 'pa'
params = {'pa': 3}

✓

param_parse(d, params)

✗

'3'

* If the line being analyzed is `integer, parameter, dimension(pa(1)) :: pb = (/1, 2, 3/)` then `d = 'pa(1)'`; since `pa` is a previously parsed parameter, and `pa(1) = 3`, we call `param_parse` recursively, to obtain

d = 'pa(1)'
params = dict(pa={1: 3, 2: 5})

✓

param_parse(d, params)

✗

'3'

Aliases

numpy.f2py.crackfortran.param_parse