JezK

Edit File: capi_maps.py

#!/usr/bin/env python3
"""

Copyright 1999,2000 Pearu Peterson all rights reserved,
Pearu Peterson <pearu@ioc.ee>
Permission to use, modify, and distribute this software is given under the
terms of the NumPy License.

NO WARRANTY IS EXPRESSED OR IMPLIED.  USE AT YOUR OWN RISK.
$Date: 2005/05/06 10:57:33 $
Pearu Peterson

"""
from . import __version__
f2py_version = __version__.version

import copy
import re
import os
from .crackfortran import markoutercomma
from . import cb_rules

# The environment provided by auxfuncs.py is needed for some calls to eval.
# As the needed functions cannot be determined by static inspection of the
# code, it is safest to use import * pending a major refactoring of f2py.
from .auxfuncs import *

__all__ = [
    'getctype', 'getstrlength', 'getarrdims', 'getpydocsign',
    'getarrdocsign', 'getinit', 'sign2map', 'routsign2map', 'modsign2map',
    'cb_sign2map', 'cb_routsign2map', 'common_sign2map'
]

# Numarray and Numeric users should set this False
using_newcore = True

depargs = []
lcb_map = {}
lcb2_map = {}
# forced casting: mainly caused by the fact that Python or Numeric
#                 C/APIs do not support the corresponding C types.
c2py_map = {'double': 'float',
            'float': 'float',                          # forced casting
            'long_double': 'float',                    # forced casting
            'char': 'int',                             # forced casting
            'signed_char': 'int',                      # forced casting
            'unsigned_char': 'int',                    # forced casting
            'short': 'int',                            # forced casting
            'unsigned_short': 'int',                   # forced casting
            'int': 'int',                              # forced casting
            'long': 'int',
            'long_long': 'long',
            'unsigned': 'int',                         # forced casting
            'complex_float': 'complex',                # forced casting
            'complex_double': 'complex',
            'complex_long_double': 'complex',          # forced casting
            'string': 'string',
            'character': 'bytes',
            }
c2capi_map = {'double': 'NPY_DOUBLE',
              'float': 'NPY_FLOAT',
              'long_double': 'NPY_DOUBLE',           # forced casting
              'char': 'NPY_STRING',
              'unsigned_char': 'NPY_UBYTE',
              'signed_char': 'NPY_BYTE',
              'short': 'NPY_SHORT',
              'unsigned_short': 'NPY_USHORT',
              'int': 'NPY_INT',
              'unsigned': 'NPY_UINT',
              'long': 'NPY_LONG',
              'long_long': 'NPY_LONG',                # forced casting
              'complex_float': 'NPY_CFLOAT',
              'complex_double': 'NPY_CDOUBLE',
              'complex_long_double': 'NPY_CDOUBLE',   # forced casting
              'string': 'NPY_STRING',
              'character': 'NPY_CHAR'}

# These new maps aren't used anywhere yet, but should be by default
#  unless building numeric or numarray extensions.
if using_newcore:
    c2capi_map = {'double': 'NPY_DOUBLE',
                  'float': 'NPY_FLOAT',
                  'long_double': 'NPY_LONGDOUBLE',
                  'char': 'NPY_BYTE',
                  'unsigned_char': 'NPY_UBYTE',
                  'signed_char': 'NPY_BYTE',
                  'short': 'NPY_SHORT',
                  'unsigned_short': 'NPY_USHORT',
                  'int': 'NPY_INT',
                  'unsigned': 'NPY_UINT',
                  'long': 'NPY_LONG',
                  'unsigned_long': 'NPY_ULONG',
                  'long_long': 'NPY_LONGLONG',
                  'unsigned_long_long': 'NPY_ULONGLONG',
                  'complex_float': 'NPY_CFLOAT',
                  'complex_double': 'NPY_CDOUBLE',
                  'complex_long_double': 'NPY_CDOUBLE',
                  'string': 'NPY_STRING',
                  'character': 'NPY_STRING'}

c2pycode_map = {'double': 'd',
                'float': 'f',
                'long_double': 'd',                       # forced casting
                'char': '1',
                'signed_char': '1',
                'unsigned_char': 'b',
                'short': 's',
                'unsigned_short': 'w',
                'int': 'i',
                'unsigned': 'u',
                'long': 'l',
                'long_long': 'L',
                'complex_float': 'F',
                'complex_double': 'D',
                'complex_long_double': 'D',               # forced casting
                'string': 'c',
                'character': 'c'
                }

if using_newcore:
    c2pycode_map = {'double': 'd',
                    'float': 'f',
                    'long_double': 'g',
                    'char': 'b',
                    'unsigned_char': 'B',
                    'signed_char': 'b',
                    'short': 'h',
                    'unsigned_short': 'H',
                    'int': 'i',
                    'unsigned': 'I',
                    'long': 'l',
                    'unsigned_long': 'L',
                    'long_long': 'q',
                    'unsigned_long_long': 'Q',
                    'complex_float': 'F',
                    'complex_double': 'D',
                    'complex_long_double': 'G',
                    'string': 'S',
                    'character': 'c'}

# https://docs.python.org/3/c-api/arg.html#building-values
# c2buildvalue_map is NumPy agnostic, so no need to bother with using_newcore
c2buildvalue_map = {'double': 'd',
                    'float': 'f',
                    'char': 'b',
                    'signed_char': 'b',
                    'short': 'h',
                    'int': 'i',
                    'long': 'l',
                    'long_long': 'L',
                    'complex_float': 'N',
                    'complex_double': 'N',
                    'complex_long_double': 'N',
                    'string': 'y',
                    'character': 'c'}

f2cmap_all = {'real': {'': 'float', '4': 'float', '8': 'double',
                       '12': 'long_double', '16': 'long_double'},
              'integer': {'': 'int', '1': 'signed_char', '2': 'short',
                          '4': 'int', '8': 'long_long',
                          '-1': 'unsigned_char', '-2': 'unsigned_short',
                          '-4': 'unsigned', '-8': 'unsigned_long_long'},
              'complex': {'': 'complex_float', '8': 'complex_float',
                          '16': 'complex_double', '24': 'complex_long_double',
                          '32': 'complex_long_double'},
              'complexkind': {'': 'complex_float', '4': 'complex_float',
                              '8': 'complex_double', '12': 'complex_long_double',
                              '16': 'complex_long_double'},
              'logical': {'': 'int', '1': 'char', '2': 'short', '4': 'int',
                          '8': 'long_long'},
              'double complex': {'': 'complex_double'},
              'double precision': {'': 'double'},
              'byte': {'': 'char'},
              }

f2cmap_default = copy.deepcopy(f2cmap_all)

f2cmap_mapped = []

def load_f2cmap_file(f2cmap_file):
    global f2cmap_all

f2cmap_all = copy.deepcopy(f2cmap_default)

if f2cmap_file is None:
        # Default value
        f2cmap_file = '.f2py_f2cmap'
        if not os.path.isfile(f2cmap_file):
            return

# User defined additions to f2cmap_all.
    # f2cmap_file must contain a dictionary of dictionaries, only. For
    # example, {'real':{'low':'float'}} means that Fortran 'real(low)' is
    # interpreted as C 'float'. This feature is useful for F90/95 users if
    # they use PARAMETERS in type specifications.
    try:
        outmess('Reading f2cmap from {!r} ...\n'.format(f2cmap_file))
        with open(f2cmap_file, 'r') as f:
            d = eval(f.read().lower(), {}, {})
        for k, d1 in d.items():
            for k1 in d1.keys():
                d1[k1.lower()] = d1[k1]
            d[k.lower()] = d[k]
        for k in d.keys():
            if k not in f2cmap_all:
                f2cmap_all[k] = {}
            for k1 in d[k].keys():
                if d[k][k1] in c2py_map:
                    if k1 in f2cmap_all[k]:
                        outmess(
                            "\tWarning: redefinition of {'%s':{'%s':'%s'->'%s'}}\n" % (k, k1, f2cmap_all[k][k1], d[k][k1]))
                    f2cmap_all[k][k1] = d[k][k1]
                    outmess('\tMapping "%s(kind=%s)" to "%s"\n' %
                            (k, k1, d[k][k1]))
                    f2cmap_mapped.append(d[k][k1])
                else:
                    errmess("\tIgnoring map {'%s':{'%s':'%s'}}: '%s' must be in %s\n" % (
                        k, k1, d[k][k1], d[k][k1], list(c2py_map.keys())))
        outmess('Successfully applied user defined f2cmap changes\n')
    except Exception as msg:
        errmess(
            'Failed to apply user defined f2cmap changes: %s. Skipping.\n' % (msg))

cformat_map = {'double': '%g',
               'float': '%g',
               'long_double': '%Lg',
               'char': '%d',
               'signed_char': '%d',
               'unsigned_char': '%hhu',
               'short': '%hd',
               'unsigned_short': '%hu',
               'int': '%d',
               'unsigned': '%u',
               'long': '%ld',
               'unsigned_long': '%lu',
               'long_long': '%ld',
               'complex_float': '(%g,%g)',
               'complex_double': '(%g,%g)',
               'complex_long_double': '(%Lg,%Lg)',
               'string': '\\"%s\\"',
               'character': "'%c'",
               }

# Auxiliary functions

def getctype(var):
    """
    Determines C type
    """
    ctype = 'void'
    if isfunction(var):
        if 'result' in var:
            a = var['result']
        else:
            a = var['name']
        if a in var['vars']:
            return getctype(var['vars'][a])
        else:
            errmess('getctype: function %s has no return value?!\n' % a)
    elif issubroutine(var):
        return ctype
    elif ischaracter_or_characterarray(var):
        return 'character'
    elif isstring_or_stringarray(var):
        return 'string'
    elif 'typespec' in var and var['typespec'].lower() in f2cmap_all:
        typespec = var['typespec'].lower()
        f2cmap = f2cmap_all[typespec]
        ctype = f2cmap['']  # default type
        if 'kindselector' in var:
            if '*' in var['kindselector']:
                try:
                    ctype = f2cmap[var['kindselector']['*']]
                except KeyError:
                    errmess('getctype: "%s %s %s" not supported.\n' %
                            (var['typespec'], '*', var['kindselector']['*']))
            elif 'kind' in var['kindselector']:
                if typespec + 'kind' in f2cmap_all:
                    f2cmap = f2cmap_all[typespec + 'kind']
                try:
                    ctype = f2cmap[var['kindselector']['kind']]
                except KeyError:
                    if typespec in f2cmap_all:
                        f2cmap = f2cmap_all[typespec]
                    try:
                        ctype = f2cmap[str(var['kindselector']['kind'])]
                    except KeyError:
                        errmess('getctype: "%s(kind=%s)" is mapped to C "%s" (to override define dict(%s = dict(%s="<C typespec>")) in %s/.f2py_f2cmap file).\n'
                                % (typespec, var['kindselector']['kind'], ctype,
                                   typespec, var['kindselector']['kind'], os.getcwd()))
    else:
        if not isexternal(var):
            errmess('getctype: No C-type found in "%s", assuming void.\n' % var)
    return ctype

def f2cexpr(expr):
    """Rewrite Fortran expression as f2py supported C expression.

Due to the lack of a proper expression parser in f2py, this
    function uses a heuristic approach that assumes that Fortran
    arithmetic expressions are valid C arithmetic expressions when
    mapping Fortran function calls to the corresponding C function/CPP
    macros calls.

"""
    # TODO: support Fortran `len` function with optional kind parameter
    expr = re.sub(r'\blen\b', 'f2py_slen', expr)
    return expr

def getstrlength(var):
    if isstringfunction(var):
        if 'result' in var:
            a = var['result']
        else:
            a = var['name']
        if a in var['vars']:
            return getstrlength(var['vars'][a])
        else:
            errmess('getstrlength: function %s has no return value?!\n' % a)
    if not isstring(var):
        errmess(
            'getstrlength: expected a signature of a string but got: %s\n' % (repr(var)))
    len = '1'
    if 'charselector' in var:
        a = var['charselector']
        if '*' in a:
            len = a['*']
        elif 'len' in a:
            len = f2cexpr(a['len'])
    if re.match(r'$\s*(\*|:)\s*$', len) or re.match(r'(\*|:)', len):
        if isintent_hide(var):
            errmess('getstrlength:intent(hide): expected a string with defined length but got: %s\n' % (
                repr(var)))
        len = '-1'
    return len

def getarrdims(a, var, verbose=0):
    ret = {}
    if isstring(var) and not isarray(var):
        ret['dims'] = getstrlength(var)
        ret['size'] = ret['dims']
        ret['rank'] = '1'
    elif isscalar(var):
        ret['size'] = '1'
        ret['rank'] = '0'
        ret['dims'] = ''
    elif isarray(var):
        dim = copy.copy(var['dimension'])
        ret['size'] = '*'.join(dim)
        try:
            ret['size'] = repr(eval(ret['size']))
        except Exception:
            pass
        ret['dims'] = ','.join(dim)
        ret['rank'] = repr(len(dim))
        ret['rank*[-1]'] = repr(len(dim) * [-1])[1:-1]
        for i in range(len(dim)):  # solve dim for dependencies
            v = []
            if dim[i] in depargs:
                v = [dim[i]]
            else:
                for va in depargs:
                    if re.match(r'.*?\b%s\b.*' % va, dim[i]):
                        v.append(va)
            for va in v:
                if depargs.index(va) > depargs.index(a):
                    dim[i] = '*'
                    break
        ret['setdims'], i = '', -1
        for d in dim:
            i = i + 1
            if d not in ['*', ':', '(*)', '(:)']:
                ret['setdims'] = '%s#varname#_Dims[%d]=%s,' % (
                    ret['setdims'], i, d)
        if ret['setdims']:
            ret['setdims'] = ret['setdims'][:-1]
        ret['cbsetdims'], i = '', -1
        for d in var['dimension']:
            i = i + 1
            if d not in ['*', ':', '(*)', '(:)']:
                ret['cbsetdims'] = '%s#varname#_Dims[%d]=%s,' % (
                    ret['cbsetdims'], i, d)
            elif isintent_in(var):
                outmess('getarrdims:warning: assumed shape array, using 0 instead of %r\n'
                        % (d))
                ret['cbsetdims'] = '%s#varname#_Dims[%d]=%s,' % (
                    ret['cbsetdims'], i, 0)
            elif verbose:
                errmess(
                    'getarrdims: If in call-back function: array argument %s must have bounded dimensions: got %s\n' % (repr(a), repr(d)))
        if ret['cbsetdims']:
            ret['cbsetdims'] = ret['cbsetdims'][:-1]
#         if not isintent_c(var):
#             var['dimension'].reverse()
    return ret

def getpydocsign(a, var):
    global lcb_map
    if isfunction(var):
        if 'result' in var:
            af = var['result']
        else:
            af = var['name']
        if af in var['vars']:
            return getpydocsign(af, var['vars'][af])
        else:
            errmess('getctype: function %s has no return value?!\n' % af)
        return '', ''
    sig, sigout = a, a
    opt = ''
    if isintent_in(var):
        opt = 'input'
    elif isintent_inout(var):
        opt = 'in/output'
    out_a = a
    if isintent_out(var):
        for k in var['intent']:
            if k[:4] == 'out=':
                out_a = k[4:]
                break
    init = ''
    ctype = getctype(var)

if hasinitvalue(var):
        init, showinit = getinit(a, var)
        init = ', optional\\n    Default: %s' % showinit
    if isscalar(var):
        if isintent_inout(var):
            sig = '%s : %s rank-0 array(%s,\'%s\')%s' % (a, opt, c2py_map[ctype],
                                                         c2pycode_map[ctype], init)
        else:
            sig = '%s : %s %s%s' % (a, opt, c2py_map[ctype], init)
        sigout = '%s : %s' % (out_a, c2py_map[ctype])
    elif isstring(var):
        if isintent_inout(var):
            sig = '%s : %s rank-0 array(string(len=%s),\'c\')%s' % (
                a, opt, getstrlength(var), init)
        else:
            sig = '%s : %s string(len=%s)%s' % (
                a, opt, getstrlength(var), init)
        sigout = '%s : string(len=%s)' % (out_a, getstrlength(var))
    elif isarray(var):
        dim = var['dimension']
        rank = repr(len(dim))
        sig = '%s : %s rank-%s array(\'%s\') with bounds (%s)%s' % (a, opt, rank,
                                                                    c2pycode_map[
                                                                        ctype],
                                                                    ','.join(dim), init)
        if a == out_a:
            sigout = '%s : rank-%s array(\'%s\') with bounds (%s)'\
                % (a, rank, c2pycode_map[ctype], ','.join(dim))
        else:
            sigout = '%s : rank-%s array(\'%s\') with bounds (%s) and %s storage'\
                % (out_a, rank, c2pycode_map[ctype], ','.join(dim), a)
    elif isexternal(var):
        ua = ''
        if a in lcb_map and lcb_map[a] in lcb2_map and 'argname' in lcb2_map[lcb_map[a]]:
            ua = lcb2_map[lcb_map[a]]['argname']
            if not ua == a:
                ua = ' => %s' % ua
            else:
                ua = ''
        sig = '%s : call-back function%s' % (a, ua)
        sigout = sig
    else:
        errmess(
            'getpydocsign: Could not resolve docsignature for "%s".\n' % a)
    return sig, sigout

def getarrdocsign(a, var):
    ctype = getctype(var)
    if isstring(var) and (not isarray(var)):
        sig = '%s : rank-0 array(string(len=%s),\'c\')' % (a,
                                                           getstrlength(var))
    elif isscalar(var):
        sig = '%s : rank-0 array(%s,\'%s\')' % (a, c2py_map[ctype],
                                                c2pycode_map[ctype],)
    elif isarray(var):
        dim = var['dimension']
        rank = repr(len(dim))
        sig = '%s : rank-%s array(\'%s\') with bounds (%s)' % (a, rank,
                                                               c2pycode_map[
                                                                   ctype],
                                                               ','.join(dim))
    return sig

def getinit(a, var):
    if isstring(var):
        init, showinit = '""', "''"
    else:
        init, showinit = '', ''
    if hasinitvalue(var):
        init = var['=']
        showinit = init
        if iscomplex(var) or iscomplexarray(var):
            ret = {}

try:
                v = var["="]
                if ',' in v:
                    ret['init.r'], ret['init.i'] = markoutercomma(
                        v[1:-1]).split('@,@')
                else:
                    v = eval(v, {}, {})
                    ret['init.r'], ret['init.i'] = str(v.real), str(v.imag)
            except Exception:
                raise ValueError(
                    'getinit: expected complex number `(r,i)\' but got `%s\' as initial value of %r.' % (init, a))
            if isarray(var):
                init = '(capi_c.r=%s,capi_c.i=%s,capi_c)' % (
                    ret['init.r'], ret['init.i'])
        elif isstring(var):
            if not init:
                init, showinit = '""', "''"
            if init[0] == "'":
                init = '"%s"' % (init[1:-1].replace('"', '\\"'))
            if init[0] == '"':
                showinit = "'%s'" % (init[1:-1])
    return init, showinit

def get_elsize(var):
    if isstring(var) or isstringarray(var):
        elsize = getstrlength(var)
        # override with user-specified length when available:
        elsize = var['charselector'].get('f2py_len', elsize)
        return elsize
    if ischaracter(var) or ischaracterarray(var):
        return '1'
    # for numerical types, PyArray_New* functions ignore specified
    # elsize, so we just return 1 and let elsize be determined at
    # runtime, see fortranobject.c
    return '1'

def sign2map(a, var):
    """
    varname,ctype,atype
    init,init.r,init.i,pytype
    vardebuginfo,vardebugshowvalue,varshowvalue
    varrformat

intent
    """
    out_a = a
    if isintent_out(var):
        for k in var['intent']:
            if k[:4] == 'out=':
                out_a = k[4:]
                break
    ret = {'varname': a, 'outvarname': out_a, 'ctype': getctype(var)}
    intent_flags = []
    for f, s in isintent_dict.items():
        if f(var):
            intent_flags.append('F2PY_%s' % s)
    if intent_flags:
        # TODO: Evaluate intent_flags here.
        ret['intent'] = '|'.join(intent_flags)
    else:
        ret['intent'] = 'F2PY_INTENT_IN'
    if isarray(var):
        ret['varrformat'] = 'N'
    elif ret['ctype'] in c2buildvalue_map:
        ret['varrformat'] = c2buildvalue_map[ret['ctype']]
    else:
        ret['varrformat'] = 'O'
    ret['init'], ret['showinit'] = getinit(a, var)
    if hasinitvalue(var) and iscomplex(var) and not isarray(var):
        ret['init.r'], ret['init.i'] = markoutercomma(
            ret['init'][1:-1]).split('@,@')
    if isexternal(var):
        ret['cbnamekey'] = a
        if a in lcb_map:
            ret['cbname'] = lcb_map[a]
            ret['maxnofargs'] = lcb2_map[lcb_map[a]]['maxnofargs']
            ret['nofoptargs'] = lcb2_map[lcb_map[a]]['nofoptargs']
            ret['cbdocstr'] = lcb2_map[lcb_map[a]]['docstr']
            ret['cblatexdocstr'] = lcb2_map[lcb_map[a]]['latexdocstr']
        else:
            ret['cbname'] = a
            errmess('sign2map: Confused: external %s is not in lcb_map%s.\n' % (
                a, list(lcb_map.keys())))
    if isstring(var):
        ret['length'] = getstrlength(var)
    if isarray(var):
        ret = dictappend(ret, getarrdims(a, var))
        dim = copy.copy(var['dimension'])
    if ret['ctype'] in c2capi_map:
        ret['atype'] = c2capi_map[ret['ctype']]
        ret['elsize'] = get_elsize(var)
    # Debug info
    if debugcapi(var):
        il = [isintent_in, 'input', isintent_out, 'output',
              isintent_inout, 'inoutput', isrequired, 'required',
              isoptional, 'optional', isintent_hide, 'hidden',
              iscomplex, 'complex scalar',
              l_and(isscalar, l_not(iscomplex)), 'scalar',
              isstring, 'string', isarray, 'array',
              iscomplexarray, 'complex array', isstringarray, 'string array',
              iscomplexfunction, 'complex function',
              l_and(isfunction, l_not(iscomplexfunction)), 'function',
              isexternal, 'callback',
              isintent_callback, 'callback',
              isintent_aux, 'auxiliary',
              ]
        rl = []
        for i in range(0, len(il), 2):
            if il[i](var):
                rl.append(il[i + 1])
        if isstring(var):
            rl.append('slen(%s)=%s' % (a, ret['length']))
        if isarray(var):
            ddim = ','.join(
                map(lambda x, y: '%s|%s' % (x, y), var['dimension'], dim))
            rl.append('dims(%s)' % ddim)
        if isexternal(var):
            ret['vardebuginfo'] = 'debug-capi:%s=>%s:%s' % (
                a, ret['cbname'], ','.join(rl))
        else:
            ret['vardebuginfo'] = 'debug-capi:%s %s=%s:%s' % (
                ret['ctype'], a, ret['showinit'], ','.join(rl))
        if isscalar(var):
            if ret['ctype'] in cformat_map:
                ret['vardebugshowvalue'] = 'debug-capi:%s=%s' % (
                    a, cformat_map[ret['ctype']])
        if isstring(var):
            ret['vardebugshowvalue'] = 'debug-capi:slen(%s)=%%d %s=\\"%%s\\"' % (
                a, a)
        if isexternal(var):
            ret['vardebugshowvalue'] = 'debug-capi:%s=%%p' % (a)
    if ret['ctype'] in cformat_map:
        ret['varshowvalue'] = '#name#:%s=%s' % (a, cformat_map[ret['ctype']])
        ret['showvalueformat'] = '%s' % (cformat_map[ret['ctype']])
    if isstring(var):
        ret['varshowvalue'] = '#name#:slen(%s)=%%d %s=\\"%%s\\"' % (a, a)
    ret['pydocsign'], ret['pydocsignout'] = getpydocsign(a, var)
    if hasnote(var):
        ret['note'] = var['note']
    return ret

def routsign2map(rout):
    """
    name,NAME,begintitle,endtitle
    rname,ctype,rformat
    routdebugshowvalue
    """
    global lcb_map
    name = rout['name']
    fname = getfortranname(rout)
    ret = {'name': name,
           'texname': name.replace('_', '\\_'),
           'name_lower': name.lower(),
           'NAME': name.upper(),
           'begintitle': gentitle(name),
           'endtitle': gentitle('end of %s' % name),
           'fortranname': fname,
           'FORTRANNAME': fname.upper(),
           'callstatement': getcallstatement(rout) or '',
           'usercode': getusercode(rout) or '',
           'usercode1': getusercode1(rout) or '',
           }
    if '_' in fname:
        ret['F_FUNC'] = 'F_FUNC_US'
    else:
        ret['F_FUNC'] = 'F_FUNC'
    if '_' in name:
        ret['F_WRAPPEDFUNC'] = 'F_WRAPPEDFUNC_US'
    else:
        ret['F_WRAPPEDFUNC'] = 'F_WRAPPEDFUNC'
    lcb_map = {}
    if 'use' in rout:
        for u in rout['use'].keys():
            if u in cb_rules.cb_map:
                for un in cb_rules.cb_map[u]:
                    ln = un[0]
                    if 'map' in rout['use'][u]:
                        for k in rout['use'][u]['map'].keys():
                            if rout['use'][u]['map'][k] == un[0]:
                                ln = k
                                break
                    lcb_map[ln] = un[1]
    elif 'externals' in rout and rout['externals']:
        errmess('routsign2map: Confused: function %s has externals %s but no "use" statement.\n' % (
            ret['name'], repr(rout['externals'])))
    ret['callprotoargument'] = getcallprotoargument(rout, lcb_map) or ''
    if isfunction(rout):
        if 'result' in rout:
            a = rout['result']
        else:
            a = rout['name']
        ret['rname'] = a
        ret['pydocsign'], ret['pydocsignout'] = getpydocsign(a, rout)
        ret['ctype'] = getctype(rout['vars'][a])
        if hasresultnote(rout):
            ret['resultnote'] = rout['vars'][a]['note']
            rout['vars'][a]['note'] = ['See elsewhere.']
        if ret['ctype'] in c2buildvalue_map:
            ret['rformat'] = c2buildvalue_map[ret['ctype']]
        else:
            ret['rformat'] = 'O'
            errmess('routsign2map: no c2buildvalue key for type %s\n' %
                    (repr(ret['ctype'])))
        if debugcapi(rout):
            if ret['ctype'] in cformat_map:
                ret['routdebugshowvalue'] = 'debug-capi:%s=%s' % (
                    a, cformat_map[ret['ctype']])
            if isstringfunction(rout):
                ret['routdebugshowvalue'] = 'debug-capi:slen(%s)=%%d %s=\\"%%s\\"' % (
                    a, a)
        if isstringfunction(rout):
            ret['rlength'] = getstrlength(rout['vars'][a])
            if ret['rlength'] == '-1':
                errmess('routsign2map: expected explicit specification of the length of the string returned by the fortran function %s; taking 10.\n' % (
                    repr(rout['name'])))
                ret['rlength'] = '10'
    if hasnote(rout):
        ret['note'] = rout['note']
        rout['note'] = ['See elsewhere.']
    return ret

def modsign2map(m):
    """
    modulename
    """
    if ismodule(m):
        ret = {'f90modulename': m['name'],
               'F90MODULENAME': m['name'].upper(),
               'texf90modulename': m['name'].replace('_', '\\_')}
    else:
        ret = {'modulename': m['name'],
               'MODULENAME': m['name'].upper(),
               'texmodulename': m['name'].replace('_', '\\_')}
    ret['restdoc'] = getrestdoc(m) or []
    if hasnote(m):
        ret['note'] = m['note']
    ret['usercode'] = getusercode(m) or ''
    ret['usercode1'] = getusercode1(m) or ''
    if m['body']:
        ret['interface_usercode'] = getusercode(m['body'][0]) or ''
    else:
        ret['interface_usercode'] = ''
    ret['pymethoddef'] = getpymethoddef(m) or ''
    if 'coutput' in m:
        ret['coutput'] = m['coutput']
    if 'f2py_wrapper_output' in m:
        ret['f2py_wrapper_output'] = m['f2py_wrapper_output']
    return ret

def cb_sign2map(a, var, index=None):
    ret = {'varname': a}
    ret['varname_i'] = ret['varname']
    ret['ctype'] = getctype(var)
    if ret['ctype'] in c2capi_map:
        ret['atype'] = c2capi_map[ret['ctype']]
        ret['elsize'] = get_elsize(var)
    if ret['ctype'] in cformat_map:
        ret['showvalueformat'] = '%s' % (cformat_map[ret['ctype']])
    if isarray(var):
        ret = dictappend(ret, getarrdims(a, var))
    ret['pydocsign'], ret['pydocsignout'] = getpydocsign(a, var)
    if hasnote(var):
        ret['note'] = var['note']
        var['note'] = ['See elsewhere.']
    return ret

def cb_routsign2map(rout, um):
    """
    name,begintitle,endtitle,argname
    ctype,rctype,maxnofargs,nofoptargs,returncptr
    """
    ret = {'name': 'cb_%s_in_%s' % (rout['name'], um),
           'returncptr': ''}
    if isintent_callback(rout):
        if '_' in rout['name']:
            F_FUNC = 'F_FUNC_US'
        else:
            F_FUNC = 'F_FUNC'
        ret['callbackname'] = '%s(%s,%s)' \
                              % (F_FUNC,
                                 rout['name'].lower(),
                                 rout['name'].upper(),
                                 )
        ret['static'] = 'extern'
    else:
        ret['callbackname'] = ret['name']
        ret['static'] = 'static'
    ret['argname'] = rout['name']
    ret['begintitle'] = gentitle(ret['name'])
    ret['endtitle'] = gentitle('end of %s' % ret['name'])
    ret['ctype'] = getctype(rout)
    ret['rctype'] = 'void'
    if ret['ctype'] == 'string':
        ret['rctype'] = 'void'
    else:
        ret['rctype'] = ret['ctype']
    if ret['rctype'] != 'void':
        if iscomplexfunction(rout):
            ret['returncptr'] = """
#ifdef F2PY_CB_RETURNCOMPLEX
return_value=
#endif
"""
        else:
            ret['returncptr'] = 'return_value='
    if ret['ctype'] in cformat_map:
        ret['showvalueformat'] = '%s' % (cformat_map[ret['ctype']])
    if isstringfunction(rout):
        ret['strlength'] = getstrlength(rout)
    if isfunction(rout):
        if 'result' in rout:
            a = rout['result']
        else:
            a = rout['name']
        if hasnote(rout['vars'][a]):
            ret['note'] = rout['vars'][a]['note']
            rout['vars'][a]['note'] = ['See elsewhere.']
        ret['rname'] = a
        ret['pydocsign'], ret['pydocsignout'] = getpydocsign(a, rout)
        if iscomplexfunction(rout):
            ret['rctype'] = """
#ifdef F2PY_CB_RETURNCOMPLEX
#ctype#
#else
void
#endif
"""
    else:
        if hasnote(rout):
            ret['note'] = rout['note']
            rout['note'] = ['See elsewhere.']
    nofargs = 0
    nofoptargs = 0
    if 'args' in rout and 'vars' in rout:
        for a in rout['args']:
            var = rout['vars'][a]
            if l_or(isintent_in, isintent_inout)(var):
                nofargs = nofargs + 1
                if isoptional(var):
                    nofoptargs = nofoptargs + 1
    ret['maxnofargs'] = repr(nofargs)
    ret['nofoptargs'] = repr(nofoptargs)
    if hasnote(rout) and isfunction(rout) and 'result' in rout:
        ret['routnote'] = rout['note']
        rout['note'] = ['See elsewhere.']
    return ret

def common_sign2map(a, var):  # obsolute
    ret = {'varname': a, 'ctype': getctype(var)}
    if isstringarray(var):
        ret['ctype'] = 'char'
    if ret['ctype'] in c2capi_map:
        ret['atype'] = c2capi_map[ret['ctype']]
        ret['elsize'] = get_elsize(var)
    if ret['ctype'] in cformat_map:
        ret['showvalueformat'] = '%s' % (cformat_map[ret['ctype']])
    if isarray(var):
        ret = dictappend(ret, getarrdims(a, var))
    elif isstring(var):
        ret['size'] = getstrlength(var)
        ret['rank'] = '1'
    ret['pydocsign'], ret['pydocsignout'] = getpydocsign(a, var)
    if hasnote(var):
        ret['note'] = var['note']
        var['note'] = ['See elsewhere.']
    # for strings this returns 0-rank but actually is 1-rank
    ret['arrdocstr'] = getarrdocsign(a, var)
    return ret

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