# Coverage for pygeodesy/streprs.py : 98%

## 91 statements 89 run 2 missing 5 excluded

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''' from pygeodesy.basics import isint, isscalar from pygeodesy.errors import _IsnotError, _ValueError, _xkwds_pop from pygeodesy.lazily import _ALL_LAZY # all public contants, classes and functions __all__ = _ALL_LAZY.streprs __version__ = '20.05.15' # formats %G and %.g drop all trailing zeros and the # decimal point making the float appear as an int _Gg = ('G', 'g') _EeFfGg = ('F', 'f', 'E', 'e') + _Gg # float formats _Fmt = 'F' def _streprs(prec, objs, fmt, ints, force, strepr): '''(INTERNAL) Helper for C{fstr}, C{pairs}, C{reprs} and C{strs} ''' if fmt in _EeFfGg: fGg = fmt in _Gg fmt = '%.' + str(abs(prec)) + fmt elif fmt.startswith('%'): fGg = False fmt = fmt.replace('*', str(abs(prec))) else: t = '[%s]%s' % ('%.*', '|'.join(_EeFfGg)) raise _ValueError(fmt=fmt, txt='not %r' % (t,)) for o in objs: if force or isinstance(o, float): t = fmt % (float(o),) if ints and (isint(o, both=True) or # for ... # corner case testLcc lon0=-96.0 t.rstrip('0').endswith('.')): t = t.split('.')[0] elif prec > 1: t = fstrzs(t, ap1z=fGg) elif strepr: t = strepr(o) else: raise _IsnotError('scalar', floats=o) yield t def anstr(name, OKd='._-', sub='_'): '''Make a valid name of alphanumeric and OKd characters. @arg name: The original name (C{str}). @kwarg OKd: Other acceptable characters (C{str}). @kwarg sub: Substitute for invalid charactes (C{str}). @return: The modified name (C{str}). @note: Leading and trailing whitespace characters are removed and intermediate whitespace characters are coalesced and substituted. ''' s = n = str(name).strip() for c in n: if not (c.isalnum() or c in OKd or c in sub): s = s.replace(c, ' ') return sub.join(s.strip().split()) def attrs(inst, *names, **kwds): # prec=6, fmt='F', ints=False, Nones=True, sep='=' '''Get instance attributes as I{name=value} strings, with C{float}s handled like L{fstr}. @arg inst: The instance (any C{type}). @arg names: The attribute names (C{str}s). @kwarg kwds: Keyword argument for function L{pairs}, except B{C{Nones=True}} to in-/exclude missing or attributes with a C{None} I{value}. @return: A C{tuple(sep.join(t) for t in zip(names, reprs(values, ...)))} of C{str}s. ''' Nones = _xkwds_pop(kwds, Nones=True) def items(): for n in names: v = getattr(inst, n, None) if Nones or v is not None: yield n, v return pairs(items(), **kwds) def enstr2(easting, northing, prec, *extras): '''Return easting, northing string representations. @arg easting: Easting from false easting (C{meter}). @arg northing: Northing from from false northing (C{meter}). @arg prec: Precision in number of digits (C{int}). @arg extras: Optional leading items (C{str}s). @return: B{C{extras}} + 2-Tuple C{(eastingStr, northingStr)}. @raise ValueError: Invalid B{C{prec}}. ''' w = prec // 2 try: p10 = (1e-4, 1e-3, 1e-2, 1e-1, 1)[w - 1] # 10**(5 - w) except IndexError: raise _ValueError(prec=prec) return extras + ('%0*d' % (w, int(easting * p10)), '%0*d' % (w, int(northing * p10))) def fstr(floats, prec=6, fmt=_Fmt, ints=False, sep=', ', strepr=None): '''Convert one or more floats to string, optionally stripped of trailing zero decimals. @arg floats: Single or a list, sequence, tuple, etc. (C{scalar}s). @kwarg prec: The C{float} precision, number of decimal digits (0..9). Trailing zero decimals are stripped if B{C{prec}} is positive, but kept for negative B{C{prec}} values. @kwarg fmt: Optional, float format (C{str}). @kwarg ints: Optionally, remove the decimal dot (C{bool}). @kwarg sep: Separator joining the B{C{floats}} (C{str}). @kwarg strepr: Optional callable to format non-C{floats} (typically C{repr}, C{str}) or C{None} to raise a TypeError. @return: The C{sep.join(strs(floats, ...)} joined (C{str}) or single C{strs((floats,), ...)} (C{str}) if B{C{floats}} is C{scalar}. ''' if isscalar(floats): floats = (floats,) return sep.join(_streprs(prec, floats, fmt, ints, True, strepr)) def fstrzs(efstr, ap1z=False): '''Strip trailing zero decimals from a C{float} string. @arg efstr: Float with or without exponent (C{str}). @kwarg ap1z: Append the decimal point and one zero decimal if the B{C{efstr}} is all digits (C{bool}). @return: Float (C{str}). ''' s = efstr.find('.') if s >= 0: e = efstr.rfind('e') if e < 0: e = efstr.rfind('E') if e < 0: e = len(efstr) s += 2 # keep 1st '.0' if s < e and efstr[e-1] == '0': efstr = efstr[:s] + efstr[s:e].rstrip('0') + efstr[e:] elif ap1z: # %.G and %.g formats drop the decimal # point and all trailing zeros, ... if efstr.isdigit(): efstr += '.0' # ... append or ... else: # ... insert one dot and zero e = efstr.rfind('e') if e < 0: e = efstr.rfind('E') if e > 0: efstr = efstr[:e] + '.0' + efstr[e:] return efstr def instr(inst, *args, **kwds): '''Return the string representation of an instantion. @arg inst: The instance (any C{type}). @arg args: Optional positional arguments. @kwarg kwds: Optional keyword arguments. @return: Representation (C{str}). ''' from pygeodesy.named import classname return unstr(classname(inst), *args, **kwds) def pairs(items, prec=6, fmt=_Fmt, ints=False, sep='='): '''Convert items to I{name=value} strings, with C{float}s handled like L{fstr}. @arg items: Name-value pairs (C{dict} or 2-{tuple}s of any C{type}s). @kwarg prec: The C{float} precision, number of decimal digits (0..9). Trailing zero decimals are stripped if B{C{prec}} is positive, but kept for negative B{C{prec}} values. @kwarg fmt: Optional, float format (C{str}). @kwarg ints: Optionally, remove the decimal dot (C{bool}). @kwarg sep: Separator joining I{names} and I{values} (C{str}). @return: A C{tuple(sep.join(t) for t in zip(names, reprs(values,...)))} of C{str}s. ''' try: if isinstance(items, dict): items = sorted(items.items()) elif not isinstance(items, (list, tuple)): items = tuple(items) # can't unzip empty items tuple, list, etc. n, v = zip(*items) if items else ((), ()) except (TypeError, ValueError): raise _IsnotError('dict', '2-tuples', items=items) v = _streprs(prec, v, fmt, ints, False, repr) return tuple(sep.join(t) for t in zip(map(str, n), v)) def reprs(objs, prec=6, fmt=_Fmt, ints=False): '''Convert objects to C{repr} strings, with C{float}s handled like L{fstr}. @arg objs: List, sequence, tuple, etc. (any C{type}s). @kwarg prec: The C{float} precision, number of decimal digits (0..9). Trailing zero decimals are stripped if B{C{prec}} is positive, but kept for negative B{C{prec}} values. @kwarg fmt: Optional, float format (C{str}). @kwarg ints: Optionally, remove the decimal dot (C{bool}). @return: A C{tuple(map(fstr|repr, objs))} of C{str}s. ''' return tuple(_streprs(prec, objs, fmt, ints, False, repr)) if objs else () def strs(objs, prec=6, fmt=_Fmt, ints=False): '''Convert objects to C{str} strings, with C{float}s handled like L{fstr}. @arg objs: List, sequence, tuple, etc. (any C{type}s). @kwarg prec: The C{float} precision, number of decimal digits (0..9). Trailing zero decimals are stripped if B{C{prec}} is positive, but kept for negative B{C{prec}} values. @kwarg fmt: Optional, float format (C{str}). @kwarg ints: Optionally, remove the decimal dot (C{bool}). @return: A C{tuple(map(fstr|str, objs))} of C{str}s. ''' return tuple(_streprs(prec, objs, fmt, ints, False, str)) if objs else () def unstr(name, *args, **kwds): '''Return the string representation of an invokation. @arg name: Function, method or class name (C{str}). @arg args: Optional positional arguments. @kwarg kwds: Optional keyword arguments. @return: Representation (C{str}). ''' t = reprs(args, fmt='g') + pairs(sorted(kwds.items())) return '%s(%s)' % (name, ', '.join(t)) # **) MIT License # # Copyright (C) 2016-2020 -- mrJean1 at Gmail -- All Rights Reserved. # # Permission is hereby granted, free of charge, to any person obtaining a # copy of this software and associated documentation files (the "Software"), # to deal in the Software without restriction, including without limitation # the rights to use, copy, modify, merge, publish, distribute, sublicense, # and/or sell copies of the Software, and to permit persons to whom the # Software is furnished to do so, subject to the following conditions: # # The above copyright notice and this permission notice shall be included # in all copies or substantial portions of the Software. # # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS # OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL # THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR # OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, # ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR # OTHER DEALINGS IN THE SOFTWARE.