Coverage for pygeodesy/streprs.py: 96%
276 statements
« prev ^ index » next coverage.py v7.2.2, created at 2024-06-10 14:08 -0400
« prev ^ index » next coverage.py v7.2.2, created at 2024-06-10 14:08 -0400
2# -*- coding: utf-8 -*-
4u'''Floating point and other formatting utilities.
5'''
7from pygeodesy.basics import isint, islistuple, isscalar, isstr, itemsorted, \
8 _zip, _0_0
9# from pygeodesy.constants import _0_0
10from pygeodesy.errors import _or, _AttributeError, _IsnotError, _TypeError, \
11 _ValueError, _xkwds_get, _xkwds_item2
12# from pygeodesy.internals import _dunder_nameof # from .lazily
13from pygeodesy.interns import NN, _0_, _0to9_, MISSING, _BAR_, _COMMASPACE_, \
14 _DOT_, _E_, _ELLIPSIS_, _EQUAL_, _H_, _LR_PAIRS, \
15 _N_, _name_, _not_scalar_, _PERCENT_, _SPACE_, \
16 _STAR_, _UNDER_
17from pygeodesy.interns import _convergence_, _distant_, _e_, _eps_, _exceeds_, \
18 _EQUALSPACED_, _f_, _F_, _g_, _limit_, _no_, \
19 _tolerance_ # PYCHOK used!
20from pygeodesy.lazily import _ALL_LAZY, _ALL_MODS as _MODS, _dunder_nameof
22from math import fabs, log10 as _log10
24__all__ = _ALL_LAZY.streprs
25__version__ = '24.06.04'
27_at_ = 'at' # PYCHOK used!
28_EN_PREC = 6 # max MGRS/OSGR precision, 1 micrometer
29_EN_WIDE = 5 # number of MGRS/OSGR units, log10(_100km)
30_OKd_ = '._-' # acceptable name characters
31_PAREN_g = '(%g)' # PYCHOK used!
32_RESIDUAL_ = 'RESIDUAL' # PYCHOK used!
33_threshold_ = 'threshold' # PYCHOK used!
36class _Fmt(str):
37 '''(INTERNAL) Callable formatting.
38 '''
39 name = NN
41 def __call__(self, *name_value_, **name_value):
42 '''Format a C{name=value} pair or C{name, value} pair or
43 just a single C{value}.
44 '''
45 for n, v in name_value.items():
46 break
47 else:
48 n, v = name_value_[:2] if len(name_value_) > 1 else \
49 (NN, (name_value_ or MISSING))
50 t = str.__mod__(self, v)
51 return NN(n, t) if n else t
53# def __mod__(self, arg, **unused):
54# '''Regular C{%} operator.
55# '''
56# return str.__mod__(self, arg)
59class Fstr(str):
60 '''(INTERNAL) C{float} format.
61 '''
62 name = NN
64 def __call__(self, flt, prec=None, ints=False):
65 '''Format the B{C{flt}} like function L{fstr}.
66 '''
67 # see also function C{fstr} if isscalar case below
68 t = str.__mod__(_pct(self), flt) if prec is None else next(
69 _streprs(prec, (flt,), self, ints, True, None))
70 return t
72 def __mod__(self, arg, **unused):
73 '''Regular C{%} operator.
75 @arg arg: A C{scalar} value to be formatted (either
76 the C{scalar}, or a 1-tuple C{(scalar,)},
77 or 2-tuple C{(prec, scalar)}.
79 @raise TypeError: Non-scalar B{C{arg}} value.
81 @raise ValueError: Invalid B{C{arg}}.
82 '''
83 def _error(arg):
84 n = _DOT_(Fstr.__name__, self.name or self)
85 return _SPACE_(n, _PERCENT_, repr(arg))
87 prec = 6 # default std %f and %F
88 if islistuple(arg):
89 n = len(arg)
90 if n == 1:
91 arg = arg[0]
92 elif n == 2:
93 prec, arg = arg
94 else:
95 raise _ValueError(_error(arg))
97 if not isscalar(arg):
98 raise _TypeError(_error(arg))
99 return self(arg, prec=prec) # Fstr.__call__(self, arg, prec=prec)
102class _Sub(str):
103 '''(INTERNAL) Class list formatter.
104 '''
105 # see .ellipsoidalNvector.LatLon.deltaTo
106 def __call__(self, *Classes):
107 t = _or(*(C.__name__ for C in Classes))
108 return str.__mod__(self, t or MISSING)
111class Fmt(object):
112 '''Formatting options.
113 '''
114 ANGLE = _Fmt('<%s>')
115 COLON = _Fmt(':%s')
116# COLONSPACE = _Fmt(': %s') # == _COLONSPACE_(n, v)
117# COMMASPACE = _Fmt(', %s') # == _COMMASPACE_(n, v)
118 convergence = _Fmt(_convergence_(_PAREN_g))
119 CURLY = _Fmt('{%s}') # BRACES
120 distant = _Fmt(_distant_('(%.3g)'))
121 DOT = _Fmt('.%s') # == NN(_DOT_, n)
122 e = Fstr(_e_)
123 E = Fstr(_E_)
124 EQUAL = _Fmt(_EQUAL_(NN, '%s'))
125 EQUALg = _Fmt(_EQUAL_(NN, '%g'))
126 EQUALSPACED = _Fmt(_EQUALSPACED_(NN, '%s'))
127 exceeds_eps = _Fmt(_exceeds_(_eps_, _PAREN_g))
128 exceeds_limit = _Fmt(_exceeds_(_limit_, _PAREN_g))
129 exceeds_R = _Fmt(_exceeds_(_RESIDUAL_, _PAREN_g))
130 f = Fstr(_f_)
131 F = Fstr(_F_)
132 g = Fstr(_g_)
133 G = Fstr('G')
134 h = Fstr('%+.*f') # height, .streprs.hstr
135 limit = _Fmt(' %s limit') # .units
136 LOPEN = _Fmt('(%s]') # left-open range (L, R]
137 PAREN = _Fmt('(%s)')
138 PAREN_g = _Fmt(_PAREN_g)
139 PARENSPACED = _Fmt(' (%s)')
140 QUOTE2 = _Fmt('"%s"')
141 ROPEN = _Fmt('[%s)') # right-open range [L, R)
142# SPACE = _Fmt(' %s') # == _SPACE_(n, v)
143 SQUARE = _Fmt('[%s]') # BRACKETS
144 sub_class = _Sub('%s (sub-)class')
145 TAG = ANGLE
146 TAGEND = _Fmt('</%s>')
147 tolerance = _Fmt(_tolerance_(_PAREN_g))
148 zone = _Fmt('%02d') # .epsg, .mgrs, .utmupsBase
150 def __init__(self):
151 for n, a in self.__class__.__dict__.items():
152 if isinstance(a, (Fstr, _Fmt)):
153 setattr(a, _name_, n)
155 def __call__(self, obj, prec=9):
156 '''Return C{str(B{obj})} or C{repr(B{obj})}.
157 '''
158 return str(obj) if isint(obj) else next(
159 _streprs(prec, (obj,), Fmt.g, False, False, repr))
161 def INDEX(self, name=NN, i=None, **name_i):
162 '''Return C{"B{name}" if B{i} is None else "B{name}[B{i}]"}.
163 '''
164 if name_i:
165 name, i = _xkwds_item2(name_i)
166 return name if i is None else self.SQUARE(name, i)
168 def no_convergence(self, _d, *tol, **thresh):
169 '''Return C{"no convergence (B{_d})"}, C{"no convergence
170 (B{_d}), tolerance (B{tol})"} or C{"no convergence
171 (B{_d}), threshold (B{tol})"}.
172 '''
173 t = Fmt.convergence(fabs(_d))
174 if tol:
175 t = _COMMASPACE_(t, Fmt.tolerance(tol[0]))
176 if thresh and _xkwds_get(thresh, thresh=False):
177 t = t.replace(_tolerance_, _threshold_)
178 return _no_(t)
180 def repr_at(self, inst, text=NN):
181 '''Return a C{repr} string C{"<B{text} at B{hex_id}>"}.
182 '''
183 return self.ANGLE(_SPACE_((text or inst), _at_, hex(id(inst))))
185Fmt = Fmt() # PYCHOK singleton
186Fmt.__name__ = Fmt.__class__.__name__
188_DOTSTAR_ = Fmt.DOT(_STAR_)
189# formats %G and %g drop all trailing zeros and the
190# decimal point, making the float appear as an int
191_Gg = (Fmt.G, Fmt.g)
192_FfEeGg = (Fmt.F, Fmt.f, Fmt.E, Fmt.e) + _Gg # float formats
193_Fspec_ = NN('[%[<flags>][<width>]', _DOTSTAR_, ']', _BAR_.join(_FfEeGg)) # in testStreprs
196def anstr(name, OKd=_OKd_, sub=_UNDER_):
197 '''Make a valid name of alphanumeric and OKd characters.
199 @arg name: The original name (C{str}).
200 @kwarg OKd: Other acceptable characters (C{str}).
201 @kwarg sub: Substitute for invalid charactes (C{str}).
203 @return: The modified name (C{str}).
205 @note: Leading and trailing whitespace characters are removed,
206 intermediate whitespace characters are coalesced and
207 substituted.
208 '''
209 s = n = str(name).strip()
210 for c in n:
211 if not (c.isalnum() or c in OKd or c in sub):
212 s = s.replace(c, _SPACE_)
213 return sub.join(s.strip().split())
216def attrs(inst, *names, **Nones_True__pairs_kwds): # prec=6, fmt=Fmt.F, ints=False, Nones=True, sep=_EQUAL_
217 '''Get instance attributes as I{name=value} strings, with C{float}s
218 formatted by function L{fstr}.
220 @arg inst: The instance (any C{type}).
221 @arg names: The attribute names, all other positional (C{str}).
222 @kwarg Nones_True__pairs_kwds: Keyword argument for function L{pairs}, except
223 C{B{Nones}=True} to in-/exclude missing or C{None}-valued attributes.
225 @return: A C{tuple(B{sep}.join(t) for t in zip(B{names}, reprs(values, ...)))}
226 of C{str}s.
227 '''
228 def _items(inst, names, Nones):
229 for n in names:
230 v = getattr(inst, n, None)
231 if Nones or v is not None:
232 yield n, v
234 def _Nones_kwds(Nones=True, **kwds):
235 return Nones, kwds
237 Nones, kwds = _Nones_kwds(**Nones_True__pairs_kwds)
238 return pairs(_items(inst, names, Nones), **kwds)
241def enstr2(easting, northing, prec, *extras, **wide_dot):
242 '''Return an MGRS/OSGR easting, northing string representations.
244 @arg easting: Easting from false easting (C{meter}).
245 @arg northing: Northing from from false northing (C{meter}).
246 @arg prec: Precision, the number of I{decimal} digits (C{int}) or if
247 negative, the number of I{units to drop}, like MGRS U{PRECISION
248 <https://GeographicLib.SourceForge.io/C++/doc/GeoConvert.1.html#PRECISION>}.
249 @arg extras: Optional leading items (C{str}s).
250 @kwarg wide_dot: Optional keword argument C{B{wide}=%d} for the number of I{unit digits}
251 (C{int}) and C{B{dot}=False} (C{bool}) to insert a decimal point.
253 @return: B{C{extras}} + 2-tuple C{(str(B{easting}), str(B{northing}))} or
254 + 2-tuple C{("", "")} for C{B{prec} <= -B{wide}}.
256 @raise ValueError: Invalid B{C{easting}}, B{C{northing}} or B{C{prec}}.
258 @note: The B{C{easting}} and B{C{northing}} values are I{truncated, not rounded}.
259 '''
260 t = extras
261 try: # like .dms.compassPoint
262 p = min(int(prec), _EN_PREC)
263 w = p + _xkwds_get(wide_dot, wide=_EN_WIDE)
264 if w > 0:
265 f = 10**p # truncate
266 d = (-p) if p > 0 and _xkwds_get(wide_dot, dot=False) else 0
267 t += (_0wdot(w, int(easting * f), d),
268 _0wdot(w, int(northing * f), d))
269 else: # prec <= -_EN_WIDE
270 t += (NN, NN)
271 except (TypeError, ValueError) as x:
272 raise _ValueError(easting=easting, northing=northing, prec=prec, cause=x)
273 return t
275if enstr2.__doc__: # PYCHOK expected
276 enstr2.__doc__ %= (_EN_WIDE,)
279def _enstr2m3(estr, nstr, wide=_EN_WIDE): # in .mgrs, .osgr
280 '''(INTERNAL) Convert east- and northing C{str}s to meter and resolution.
281 '''
282 def _s2m2(s, m): # e or n str to float meter
283 if _DOT_ in s:
284 m = 1 # meter
285 else:
286 s += _0_ * wide
287 s = _DOT_(s[:wide], s[wide:wide+_EN_PREC])
288 return float(s), m
290 e, m = _s2m2(estr, 0)
291 n, m = _s2m2(nstr, m)
292 if not m:
293 p = max(len(estr), len(nstr)) # 2 = Km, 5 = m, 7 = cm
294 m = 10**max(-_EN_PREC, wide - p) # resolution, meter
295 return e, n, m
298def fstr(floats, prec=6, fmt=Fmt.F, ints=False, sep=_COMMASPACE_, strepr=None, force=True):
299 '''Convert one or more floats to string, optionally stripped of trailing zero decimals.
301 @arg floats: Single or a list, sequence, tuple, etc. (C{scalar}s).
302 @kwarg prec: The C{float} precision, number of decimal digits (0..9).
303 Trailing zero decimals are stripped if B{C{prec}} is
304 positive, but kept for negative B{C{prec}} values. In
305 addition, trailing decimal zeros are stripped for U{alternate,
306 form '#'<https://docs.Python.org/3/library/stdtypes.html
307 #printf-style-string-formatting>}.
308 @kwarg fmt: Optional C{float} format (C{letter}).
309 @kwarg ints: Optionally, remove the decimal dot for C{int} values (C{bool}).
310 @kwarg sep: Separator joining the B{C{floats}} (C{str}).
311 @kwarg strepr: Optional callable to format non-C{floats} (typically
312 C{repr}, C{str}) or C{None} to raise a TypeError and used
313 only if C{B{force} is not True}.
314 @kwarg force: If C{True} format all B{C{floats}} using B{C{fmt}},
315 otherwise use B{C{strepr}} for non-C{floats}.
317 @return: The C{sep.join(strs(floats, ...)} joined (C{str}) or single
318 C{strs((floats,), ...)} (C{str}) if B{C{floats}} is C{scalar}.
319 '''
320 if isscalar(floats): # see Fstr.__call__ above
321 return next(_streprs(prec, (floats,), fmt, ints, force, strepr))
322 else:
323 return sep.join(_streprs(prec, floats, fmt, ints, force, strepr))
326def _fstrENH2(inst, prec, m, fmt=Fmt.F): # in .css, .lcc, .utmupsBase
327 # (INTERNAL) For C{Css.} and C{Lcc.} C{toRepr} and C{toStr} and C{UtmUpsBase._toStr}.
328 t = inst.easting, inst.northing
329 t = tuple(_streprs(prec, t, fmt, False, True, None))
330 T = _E_, _N_
331 if m is not None and fabs(inst.height): # fabs(self.height) > EPS
332 t += hstr(inst.height, prec=-2, m=m),
333 T += _H_,
334 return t, T
337def _fstrLL0(inst, prec, toRepr): # in .azimuthal, .css
338 # (INTERNAL) For C{_AlbersBase.}, C{_AzimuthalBase.} and C{CassiniSoldner.}
339 t = tuple(_streprs(prec, inst.latlon0, Fmt.F, False, True, None))
340 if toRepr:
341 n = inst.name
342 if n:
343 t += Fmt.EQUAL(_name_, repr(n)),
344 t = Fmt.PAREN(inst.classname, _COMMASPACE_.join(t))
345 return t
348def fstrzs(efstr, ap1z=False):
349 '''Strip trailing zero decimals from a C{float} string.
351 @arg efstr: Float with or without exponent (C{str}).
352 @kwarg ap1z: Append the decimal point and one zero decimal
353 if the B{C{efstr}} is all digits (C{bool}).
355 @return: Float (C{str}).
356 '''
357 s = efstr.find(_DOT_)
358 if s >= 0:
359 e = efstr.rfind(Fmt.e)
360 if e < 0:
361 e = efstr.rfind(Fmt.E)
362 if e < 0:
363 e = len(efstr)
364 s += 2 # keep 1st _DOT_ + _0_
365 if s < e and efstr[e-1] == _0_:
366 efstr = NN(efstr[:s], efstr[s:e].rstrip(_0_), efstr[e:])
368 elif ap1z:
369 # %.G and %.g formats may drop the decimal
370 # point and all trailing zeros, ...
371 if efstr.isdigit():
372 efstr += _DOT_ + _0_ # ... append or ...
373 else: # ... insert one dot and zero
374 e = efstr.rfind(Fmt.e)
375 if e < 0:
376 e = efstr.rfind(Fmt.E)
377 if e > 0:
378 efstr = NN(efstr[:e], _DOT_, _0_, efstr[e:])
380 return efstr
383def hstr(height, prec=2, fmt=Fmt.h, ints=False, m=NN):
384 '''Return a string for the height value.
386 @arg height: Height value (C{float}).
387 @kwarg prec: The C{float} precision, number of decimal digits (0..9).
388 Trailing zero decimals are stripped if B{C{prec}} is
389 positive, but kept for negative B{C{prec}} values.
390 @kwarg fmt: Optional C{float} format (C{letter}).
391 @kwarg ints: Optionally, remove the decimal dot for C{int} values (C{bool}).
392 @kwarg m: Optional unit of the height (C{str}).
393 '''
394 h = next(_streprs(prec, (height,), fmt, ints, True, None))
395 return NN(h, str(m)) if m else h
398def instr(inst, *args, **kwds):
399 '''Return the string representation of an instantiation.
401 @arg inst: The instance (any C{type}).
402 @arg args: Optional positional arguments.
403 @kwarg kwds: Optional keyword arguments.
405 @return: Representation (C{str}).
406 '''
407 return unstr(_MODS.named.classname(inst), *args, **kwds)
410def lrstrip(txt, lrpairs=_LR_PAIRS):
411 '''Left- I{and} right-strip parentheses, brackets, etc. from a string.
413 @arg txt: String to be stripped (C{str}).
414 @kwarg lrpairs: Parentheses, etc. to remove (C{dict} of one or several
415 C{(Left, Right)} pairs).
417 @return: Stripped B{C{txt}} (C{str}).
418 '''
419 _e, _s, _n = str.endswith, str.startswith, len
420 while _n(txt) > 2:
421 for L, R in lrpairs.items():
422 if _e(txt, R) and _s(txt, L):
423 txt = txt[_n(L):-_n(R)]
424 break # restart
425 else:
426 return txt
429def pairs(items, prec=6, fmt=Fmt.F, ints=False, sep=_EQUAL_):
430 '''Convert items to I{name=value} strings, with C{float}s handled like L{fstr}.
432 @arg items: Name-value pairs (C{dict} or 2-{tuple}s of any C{type}s).
433 @kwarg prec: The C{float} precision, number of decimal digits (0..9).
434 Trailing zero decimals are stripped if B{C{prec}} is
435 positive, but kept for negative B{C{prec}} values.
436 @kwarg fmt: Optional C{float} format (C{letter}).
437 @kwarg ints: Optionally, remove the decimal dot for C{int} values (C{bool}).
438 @kwarg sep: Separator joining I{names} and I{values} (C{str}).
440 @return: A C{tuple(B{sep}.join(t) for t in B{items}))} of C{str}s.
441 '''
442 try:
443 if isinstance(items, dict):
444 items = itemsorted(items)
445 elif not islistuple(items):
446 items = tuple(items)
447 # can't unzip empty items tuple, list, etc.
448 n, v = _zip(*items) if items else ((), ()) # strict=True
449 except (TypeError, ValueError):
450 raise _IsnotError(dict.__name__, '2-tuples', items=items)
451 v = _streprs(prec, v, fmt, ints, False, repr)
452 return tuple(sep.join(t) for t in _zip(map(str, n), v)) # strict=True
455def _pct(fmt):
456 '''(INTERNAL) Prefix C{%} if needed.
457 '''
458 return fmt if _PERCENT_ in fmt else NN(_PERCENT_, fmt)
461def reprs(objs, prec=6, fmt=Fmt.F, ints=False):
462 '''Convert objects to C{repr} strings, with C{float}s handled like L{fstr}.
464 @arg objs: List, sequence, tuple, etc. (any C{type}s).
465 @kwarg prec: The C{float} precision, number of decimal digits (0..9).
466 Trailing zero decimals are stripped if B{C{prec}} is
467 positive, but kept for negative B{C{prec}} values.
468 @kwarg fmt: Optional C{float} format (C{letter}).
469 @kwarg ints: Optionally, remove the decimal dot for C{int} values (C{bool}).
471 @return: A C{tuple(map(fstr|repr, objs))} of C{str}s.
472 '''
473 return tuple(_streprs(prec, objs, fmt, ints, False, repr)) if objs else ()
476def _resolution10(resolution, Error=ValueError): # in .mgrs, .osgr
477 '''(INTERNAL) Validate C{resolution} in C{meter}.
478 '''
479 try:
480 r = int(_log10(resolution))
481 if _EN_WIDE < r or r < -_EN_PREC:
482 raise ValueError
483 except (ValueError, TypeError):
484 raise Error(resolution=resolution)
485 return _MODS.units.Meter(resolution=10**r)
488def _streprs(prec, objs, fmt, ints, force, strepr):
489 '''(INTERNAL) Helper for C{fstr}, C{pairs}, C{reprs} and C{strs}
490 '''
491 # <https://docs.Python.org/3/library/stdtypes.html#printf-style-string-formatting>
492 if fmt in _FfEeGg:
493 fGg = fmt in _Gg
494 fmt = NN(_PERCENT_, _DOT_, abs(prec), fmt)
496 elif fmt.startswith(_PERCENT_):
497 fGg = False
498 try: # to make sure fmt is valid
499 f = fmt.replace(_DOTSTAR_, Fmt.DOT(abs(prec)))
500 _ = f % (_0_0,)
501 except (TypeError, ValueError):
502 raise _ValueError(fmt=fmt, txt_not_=repr(_DOTSTAR_))
503 fmt = f
505 else:
506 raise _ValueError(fmt=fmt, txt_not_=repr(_Fspec_))
508 for i, o in enumerate(objs):
509 if force or isinstance(o, float):
510 t = fmt % (float(o),)
511 if ints and t.rstrip(_0to9_ if isint(o, both=True) else
512 _0_).endswith(_DOT_):
513 t = t.split(_DOT_)[0]
514 elif prec > 1:
515 t = fstrzs(t, ap1z=fGg)
516 elif strepr:
517 t = strepr(o)
518 else:
519 t = Fmt.PARENSPACED(Fmt.SQUARE(objs=i), o)
520 raise TypeError(_SPACE_(t, _not_scalar_))
521 yield t
524def strs(objs, prec=6, fmt=Fmt.F, ints=False):
525 '''Convert objects to C{str} strings, with C{float}s handled like L{fstr}.
527 @arg objs: List, sequence, tuple, etc. (any C{type}s).
528 @kwarg prec: The C{float} precision, number of decimal digits (0..9).
529 Trailing zero decimals are stripped if B{C{prec}} is
530 positive, but kept for negative B{C{prec}} values.
531 @kwarg fmt: Optional C{float} format (C{letter}).
532 @kwarg ints: Optionally, remove the decimal dot for C{int} values (C{bool}).
534 @return: A C{tuple(map(fstr|str, objs))} of C{str}s.
535 '''
536 return tuple(_streprs(prec, objs, fmt, ints, False, str)) if objs else ()
539def unstr(where, *args, **kwds):
540 '''Return the string representation of an invokation.
542 @arg where: Class, function, method (C{type}) or name (C{str}).
543 @arg args: Optional positional arguments.
544 @kwarg kwds: Optional keyword arguments, except C{B{_fmt}=Fmt.g}
545 and C{B{_ELLIPSIS}=False}.
547 @return: Representation (C{str}).
548 '''
549 def _e_g_kwds3(_ELLIPSIS=False, _fmt=Fmt.g, **kwds):
550 return _ELLIPSIS, _fmt, kwds
552 e, g, kwds = _e_g_kwds3(**kwds)
553 t = reprs(args, fmt=g) if args else ()
554 if e:
555 t += _ELLIPSIS_,
556 if kwds:
557 t += pairs(itemsorted(kwds), fmt=g)
558 n = where if isstr(where) else _dunder_nameof(where) # _NN_
559 return Fmt.PAREN(n, _COMMASPACE_.join(t))
562def _0wd(*w_i): # in .osgr, .wgrs
563 '''(INTERNAL) Int formatter'.
564 '''
565 return '%0*d' % w_i
568def _0wdot(w, f, dot=0):
569 '''(INTERNAL) Int and Float formatter'.
570 '''
571 s = _0wd(w, int(f))
572 if dot:
573 s = _DOT_(s[:dot], s[dot:])
574 return s
577def _0wpF(*w_p_f): # in .dms, .osgr
578 '''(INTERNAL) Float deg, min, sec formatter'.
579 '''
580 return '%0*.*f' % w_p_f # XXX was F
583def _xattrs(insto, other, *attrs): # see .errors._xattr
584 '''(INTERNAL) Copy attribute values from B{C{other}} to B{C{insto}}.
586 @arg insto: Object to copy attribute values to (any C{type}).
587 @arg other: Object to copy attribute values from (any C{type}).
588 @arg attrs: One or more attribute names (C{str}s).
590 @return: Object B{C{insto}}, updated.
592 @raise AttributeError: An B{C{attrs}} doesn't exist
593 or is not settable.
594 '''
595 def _getattr(o, a):
596 if hasattr(o, a):
597 return getattr(o, a)
598 try:
599 n = o._DOT_(a)
600 except AttributeError:
601 n = Fmt.DOT(a)
602 raise _AttributeError(o, name=n)
604 for a in attrs:
605 s = _getattr(other, a)
606 g = _getattr(insto, a)
607 if (g is None and s is not None) or g != s:
608 setattr(insto, a, s) # not settable?
609 return insto
612def _xzipairs(names, values, sep=_COMMASPACE_, fmt=NN, pair_fmt=Fmt.COLON):
613 '''(INTERNAL) Zip C{names} and C{values} into a C{str}, joined and bracketed.
614 '''
615 try:
616 t = sep.join(pair_fmt(*t) for t in _zip(names, values)) # strict=True
617 except Exception as x:
618 raise _ValueError(names=names, values=values, cause=x)
619 return (fmt % (t,)) if fmt else t # enc
621# **) MIT License
622#
623# Copyright (C) 2016-2024 -- mrJean1 at Gmail -- All Rights Reserved.
624#
625# Permission is hereby granted, free of charge, to any person obtaining a
626# copy of this software and associated documentation files (the "Software"),
627# to deal in the Software without restriction, including without limitation
628# the rights to use, copy, modify, merge, publish, distribute, sublicense,
629# and/or sell copies of the Software, and to permit persons to whom the
630# Software is furnished to do so, subject to the following conditions:
631#
632# The above copyright notice and this permission notice shall be included
633# in all copies or substantial portions of the Software.
634#
635# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
636# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
637# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
638# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
639# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
640# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
641# OTHER DEALINGS IN THE SOFTWARE.