Coverage for pygeodesy/streprs.py: 96%
269 statements
« prev ^ index » next coverage.py v7.2.2, created at 2024-02-05 16:22 -0500
« prev ^ index » next coverage.py v7.2.2, created at 2024-02-05 16:22 -0500
2# -*- coding: utf-8 -*-
4u'''Floating point and other formatting utilities.
5'''
7from pygeodesy.basics import _0_0, isint, islistuple, isscalar, isstr, _zip
8# from pygeodesy.constants import _0_0
9from pygeodesy.errors import _AttributeError, _IsnotError, itemsorted, _or, \
10 _TypeError, _ValueError, _xkwds_get, _xkwds_pop
11from pygeodesy.interns import NN, _0_, _0to9_, MISSING, _BAR_, _COMMASPACE_, \
12 _DOT_, _dunder_nameof, _E_, _ELLIPSIS_, _EQUAL_, \
13 _H_, _LR_PAIRS, _N_, _name_, _not_, _not_scalar_, \
14 _PERCENT_, _SPACE_, _STAR_, _UNDER_
15from pygeodesy.interns import _convergence_, _distant_, _e_, _eps_, _exceeds_, \
16 _EQUALSPACED_, _f_, _F_, _g_, _limit_, _no_, \
17 _tolerance_ # PYCHOK used!
18from pygeodesy.lazily import _ALL_LAZY, _ALL_MODS as _MODS, _getenv
20from math import fabs, log10 as _log10
22__all__ = _ALL_LAZY.streprs
23__version__ = '24.02.04'
25_EN_PREC = 6 # max MGRS/OSGR precision, 1 micrometer
26_EN_WIDE = 5 # number of MGRS/OSGR units, log10(_100km)
27_OKd_ = '._-' # acceptable name characters
28_PAREN_g = '(%g)' # PYCHOK used!
29_threshold_ = 'threshold' # PYCHOK used!
32class _Fmt(str): # in .streprs
33 '''(INTERNAL) Callable formatting.
34 '''
35 name = NN
37 def __call__(self, *name_value_, **name_value):
38 '''Format a C{name=value} pair or C{name, value} pair
39 or just a single C{value}.
40 '''
41 for n, v in name_value.items():
42 break
43 else:
44 if len(name_value_) > 1:
45 n, v = name_value_[:2]
46 elif name_value_:
47 n, v = NN, name_value_[0]
48 else:
49 n, v = NN, 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)
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 f = Fstr(_f_)
130 form = _getenv('PYGEODESY_FMT_FORM', NN)
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 no_convergence(self, _d, *tol, **thresh):
162 t = Fmt.convergence(fabs(_d))
163 if tol:
164 t = _COMMASPACE_(t, Fmt.tolerance(tol[0]))
165 if thresh and _xkwds_get(thresh, thresh=False):
166 t = t.replace(_tolerance_, _threshold_)
167 return _no_(t)
169Fmt = Fmt() # PYCHOK singleton
170Fmt.__name__ = Fmt.__class__.__name__
172_DOTSTAR_ = Fmt.DOT(_STAR_)
173# formats %G and %g drop all trailing zeros and the
174# decimal point, making the float appear as an int
175_Gg = (Fmt.G, Fmt.g)
176_FfEeGg = (Fmt.F, Fmt.f, Fmt.E, Fmt.e) + _Gg # float formats
177_Fspec_ = NN('[%[<flags>][<width>]', _DOTSTAR_, ']', _BAR_.join(_FfEeGg)) # in testStreprs
180def anstr(name, OKd=_OKd_, sub=_UNDER_):
181 '''Make a valid name of alphanumeric and OKd characters.
183 @arg name: The original name (C{str}).
184 @kwarg OKd: Other acceptable characters (C{str}).
185 @kwarg sub: Substitute for invalid charactes (C{str}).
187 @return: The modified name (C{str}).
189 @note: Leading and trailing whitespace characters are removed,
190 intermediate whitespace characters are coalesced and
191 substituted.
192 '''
193 s = n = str(name).strip()
194 for c in n:
195 if not (c.isalnum() or c in OKd or c in sub):
196 s = s.replace(c, _SPACE_)
197 return sub.join(s.strip().split())
200def attrs(inst, *names, **Nones_True__pairs_kwds): # prec=6, fmt=Fmt.F, ints=False, Nones=True, sep=_EQUAL_
201 '''Get instance attributes as I{name=value} strings, with C{float}s
202 formatted by function L{fstr}.
204 @arg inst: The instance (any C{type}).
205 @arg names: The attribute names, all other positional (C{str}).
206 @kwarg Nones_True__pairs_kwds: Keyword argument for function L{pairs}, except
207 C{B{Nones}=True} to in-/exclude missing or C{None}-valued attributes.
209 @return: A C{tuple(B{sep}.join(t) for t in zip(B{names}, reprs(values, ...)))}
210 of C{str}s.
211 '''
212 def _items(inst, names, Nones):
213 for n in names:
214 v = getattr(inst, n, None)
215 if Nones or v is not None:
216 yield n, v
218 def _Nones_kwds(Nones=True, **kwds):
219 return Nones, kwds
221 Nones, kwds = _Nones_kwds(**Nones_True__pairs_kwds)
222 return pairs(_items(inst, names, Nones), **kwds)
225def enstr2(easting, northing, prec, *extras, **wide_dot):
226 '''Return an MGRS/OSGR easting, northing string representations.
228 @arg easting: Easting from false easting (C{meter}).
229 @arg northing: Northing from from false northing (C{meter}).
230 @arg prec: Precision, the number of I{decimal} digits (C{int}) or if
231 negative, the number of I{units to drop}, like MGRS U{PRECISION
232 <https://GeographicLib.SourceForge.io/C++/doc/GeoConvert.1.html#PRECISION>}.
233 @arg extras: Optional leading items (C{str}s).
234 @kwarg wide_dot: Optional keword argument C{B{wide}=%d} for the number of I{unit digits}
235 (C{int}) and C{B{dot}=False} (C{bool}) to insert a decimal point.
237 @return: B{C{extras}} + 2-tuple C{(str(B{easting}), str(B{northing}))} or
238 + 2-tuple C{("", "")} for C{B{prec} <= -B{wide}}.
240 @raise ValueError: Invalid B{C{easting}}, B{C{northing}} or B{C{prec}}.
242 @note: The B{C{easting}} and B{C{northing}} values are I{truncated, not rounded}.
243 '''
244 t = extras
245 try: # like .dms.compassPoint
246 p = min(int(prec), _EN_PREC)
247 w = p + _xkwds_get(wide_dot, wide=_EN_WIDE)
248 if w > 0:
249 f = 10**p # truncate
250 d = (-p) if p > 0 and _xkwds_get(wide_dot, dot=False) else 0
251 t += (_0wdot(w, int(easting * f), d),
252 _0wdot(w, int(northing * f), d))
253 else: # prec <= -_EN_WIDE
254 t += (NN, NN)
255 except (TypeError, ValueError) as x:
256 raise _ValueError(easting=easting, northing=northing, prec=prec, cause=x)
257 return t
259if enstr2.__doc__: # PYCHOK expected
260 enstr2.__doc__ %= (_EN_WIDE,)
263def _enstr2m3(estr, nstr, wide=_EN_WIDE): # in .mgrs, .osgr
264 '''(INTERNAL) Convert east- and northing C{str}s to meter and resolution.
265 '''
266 def _s2m2(s, m): # e or n str to float meter
267 if _DOT_ in s:
268 m = 1 # meter
269 else:
270 s += _0_ * wide
271 s = _DOT_(s[:wide], s[wide:wide+_EN_PREC])
272 return float(s), m
274 e, m = _s2m2(estr, 0)
275 n, m = _s2m2(nstr, m)
276 if not m:
277 p = max(len(estr), len(nstr)) # 2 = Km, 5 = m, 7 = cm
278 m = 10**max(-_EN_PREC, wide - p) # resolution, meter
279 return e, n, m
282def fstr(floats, prec=6, fmt=Fmt.F, ints=False, sep=_COMMASPACE_, strepr=None):
283 '''Convert one or more floats to string, optionally stripped of trailing zero decimals.
285 @arg floats: Single or a list, sequence, tuple, etc. (C{scalar}s).
286 @kwarg prec: The C{float} precision, number of decimal digits (0..9).
287 Trailing zero decimals are stripped if B{C{prec}} is
288 positive, but kept for negative B{C{prec}} values. In
289 addition, trailing decimal zeros are stripped for U{alternate,
290 form '#'<https://docs.Python.org/3/library/stdtypes.html
291 #printf-style-string-formatting>}.
292 @kwarg fmt: Optional C{float} format (C{letter}).
293 @kwarg ints: Optionally, remove the decimal dot for C{int} values (C{bool}).
294 @kwarg sep: Separator joining the B{C{floats}} (C{str}).
295 @kwarg strepr: Optional callable to format non-C{floats} (typically
296 C{repr}, C{str}) or C{None} to raise a TypeError.
298 @return: The C{sep.join(strs(floats, ...)} joined (C{str}) or single
299 C{strs((floats,), ...)} (C{str}) if B{C{floats}} is C{scalar}.
300 '''
301 if isscalar(floats): # see Fstr.__call__ above
302 return next(_streprs(prec, (floats,), fmt, ints, True, strepr))
303 else:
304 return sep.join(_streprs(prec, floats, fmt, ints, True, strepr))
307def _fstrENH2(inst, prec, m, fmt=Fmt.F): # in .css, .lcc, .utmupsBase
308 # (INTERNAL) For C{Css.} and C{Lcc.} C{toRepr} and C{toStr} and C{UtmUpsBase._toStr}.
309 t = inst.easting, inst.northing
310 t = tuple(_streprs(prec, t, fmt, False, True, None))
311 T = _E_, _N_
312 if m is not None and fabs(inst.height): # fabs(self.height) > EPS
313 t += hstr(inst.height, prec=-2, m=m),
314 T += _H_,
315 return t, T
318def _fstrLL0(inst, prec, toRepr): # in .azimuthal, .css
319 # (INTERNAL) For C{_AlbersBase.}, C{_AzimuthalBase.} and C{CassiniSoldner.}
320 t = tuple(_streprs(prec, inst.latlon0, Fmt.F, False, True, None))
321 if toRepr:
322 n = inst.name
323 if n:
324 t += Fmt.EQUAL(_name_, repr(n)),
325 t = Fmt.PAREN(inst.classname, _COMMASPACE_.join(t))
326 return t
329def fstrzs(efstr, ap1z=False):
330 '''Strip trailing zero decimals from a C{float} string.
332 @arg efstr: Float with or without exponent (C{str}).
333 @kwarg ap1z: Append the decimal point and one zero decimal
334 if the B{C{efstr}} is all digits (C{bool}).
336 @return: Float (C{str}).
337 '''
338 s = efstr.find(_DOT_)
339 if s >= 0:
340 e = efstr.rfind(Fmt.e)
341 if e < 0:
342 e = efstr.rfind(Fmt.E)
343 if e < 0:
344 e = len(efstr)
345 s += 2 # keep 1st _DOT_ + _0_
346 if s < e and efstr[e-1] == _0_:
347 efstr = NN(efstr[:s], efstr[s:e].rstrip(_0_), efstr[e:])
349 elif ap1z:
350 # %.G and %.g formats may drop the decimal
351 # point and all trailing zeros, ...
352 if efstr.isdigit():
353 efstr += _DOT_ + _0_ # ... append or ...
354 else: # ... insert one dot and zero
355 e = efstr.rfind(Fmt.e)
356 if e < 0:
357 e = efstr.rfind(Fmt.E)
358 if e > 0:
359 efstr = NN(efstr[:e], _DOT_, _0_, efstr[e:])
361 return efstr
364def hstr(height, prec=2, fmt=Fmt.h, ints=False, m=NN):
365 '''Return a string for the height value.
367 @arg height: Height value (C{float}).
368 @kwarg prec: The C{float} precision, number of decimal digits (0..9).
369 Trailing zero decimals are stripped if B{C{prec}} is
370 positive, but kept for negative B{C{prec}} values.
371 @kwarg fmt: Optional C{float} format (C{letter}).
372 @kwarg ints: Optionally, remove the decimal dot for C{int} values (C{bool}).
373 @kwarg m: Optional unit of the height (C{str}).
374 '''
375 h = next(_streprs(prec, (height,), fmt, ints, True, None))
376 return NN(h, str(m)) if m else h
379def instr(inst, *args, **kwds):
380 '''Return the string representation of an instantiation.
382 @arg inst: The instance (any C{type}).
383 @arg args: Optional positional arguments.
384 @kwarg kwds: Optional keyword arguments.
386 @return: Representation (C{str}).
387 '''
388 return unstr(_MODS.named.classname(inst), *args, **kwds)
391def lrstrip(txt, lrpairs=_LR_PAIRS):
392 '''Left- I{and} right-strip parentheses, brackets, etc. from a string.
394 @arg txt: String to be stripped (C{str}).
395 @kwarg lrpairs: Parentheses, etc. to remove (C{dict} of one or several
396 C{(Left, Right)} pairs).
398 @return: Stripped B{C{txt}} (C{str}).
399 '''
400 _e, _s, _n = str.endswith, str.startswith, len
401 while _n(txt) > 2:
402 for L, R in lrpairs.items():
403 if _e(txt, R) and _s(txt, L):
404 txt = txt[_n(L):-_n(R)]
405 break # restart
406 else:
407 return txt
410def pairs(items, prec=6, fmt=Fmt.F, ints=False, sep=_EQUAL_):
411 '''Convert items to I{name=value} strings, with C{float}s handled like L{fstr}.
413 @arg items: Name-value pairs (C{dict} or 2-{tuple}s of any C{type}s).
414 @kwarg prec: The C{float} precision, number of decimal digits (0..9).
415 Trailing zero decimals are stripped if B{C{prec}} is
416 positive, but kept for negative B{C{prec}} values.
417 @kwarg fmt: Optional C{float} format (C{letter}).
418 @kwarg ints: Optionally, remove the decimal dot for C{int} values (C{bool}).
419 @kwarg sep: Separator joining I{names} and I{values} (C{str}).
421 @return: A C{tuple(B{sep}.join(t) for t in B{items}))} of C{str}s.
422 '''
423 try:
424 if isinstance(items, dict):
425 items = itemsorted(items)
426 elif not islistuple(items):
427 items = tuple(items)
428 # can't unzip empty items tuple, list, etc.
429 n, v = _zip(*items) if items else ((), ()) # strict=True
430 except (TypeError, ValueError):
431 raise _IsnotError(dict.__name__, '2-tuples', items=items)
432 v = _streprs(prec, v, fmt, ints, False, repr)
433 return tuple(sep.join(t) for t in _zip(map(str, n), v)) # strict=True
436def _pct(fmt):
437 '''(INTERNAL) Prefix C{%} if needed.
438 '''
439 return fmt if _PERCENT_ in fmt else NN(_PERCENT_, fmt)
442def reprs(objs, prec=6, fmt=Fmt.F, ints=False):
443 '''Convert objects to C{repr} strings, with C{float}s handled like L{fstr}.
445 @arg objs: List, sequence, tuple, etc. (any C{type}s).
446 @kwarg prec: The C{float} precision, number of decimal digits (0..9).
447 Trailing zero decimals are stripped if B{C{prec}} is
448 positive, but kept for negative B{C{prec}} values.
449 @kwarg fmt: Optional C{float} format (C{letter}).
450 @kwarg ints: Optionally, remove the decimal dot for C{int} values (C{bool}).
452 @return: A C{tuple(map(fstr|repr, objs))} of C{str}s.
453 '''
454 return tuple(_streprs(prec, objs, fmt, ints, False, repr)) if objs else ()
457def _resolution10(resolution, Error=ValueError): # in .mgrs, .osgr
458 '''(INTERNAL) Validate C{resolution} in C{meter}.
459 '''
460 try:
461 r = int(_log10(resolution))
462 if _EN_WIDE < r or r < -_EN_PREC:
463 raise ValueError
464 except (ValueError, TypeError):
465 raise Error(resolution=resolution)
466 return _MODS.units.Meter(resolution=10**r)
469def _streprs(prec, objs, fmt, ints, force, strepr):
470 '''(INTERNAL) Helper for C{fstr}, C{pairs}, C{reprs} and C{strs}
471 '''
472 # <https://docs.Python.org/3/library/stdtypes.html#printf-style-string-formatting>
473 if fmt in _FfEeGg:
474 fGg = fmt in _Gg
475 fmt = NN(_PERCENT_, _DOT_, abs(prec), fmt)
477 elif fmt.startswith(_PERCENT_):
478 fGg = False
479 try: # to make sure fmt is valid
480 f = fmt.replace(_DOTSTAR_, Fmt.DOT(abs(prec)))
481 _ = f % (_0_0,)
482 except (TypeError, ValueError):
483 raise _ValueError(fmt=fmt, txt=_not_(repr(_DOTSTAR_)))
484 fmt = f
486 else:
487 raise _ValueError(fmt=fmt, txt=_not_(repr(_Fspec_)))
489 for i, o in enumerate(objs):
490 if force or isinstance(o, float):
491 t = fmt % (float(o),)
492 if ints and t.rstrip(_0to9_ if isint(o, both=True) else
493 _0_).endswith(_DOT_):
494 t = t.split(_DOT_)[0]
495 elif prec > 1:
496 t = fstrzs(t, ap1z=fGg)
497 elif strepr:
498 t = strepr(o)
499 else:
500 t = Fmt.PARENSPACED(Fmt.SQUARE(objs=i), o)
501 raise TypeError(_SPACE_(t, _not_scalar_))
502 yield t
505def strs(objs, prec=6, fmt=Fmt.F, ints=False):
506 '''Convert objects to C{str} strings, with C{float}s handled like L{fstr}.
508 @arg objs: List, sequence, tuple, etc. (any C{type}s).
509 @kwarg prec: The C{float} precision, number of decimal digits (0..9).
510 Trailing zero decimals are stripped if B{C{prec}} is
511 positive, but kept for negative B{C{prec}} values.
512 @kwarg fmt: Optional C{float} format (C{letter}).
513 @kwarg ints: Optionally, remove the decimal dot for C{int} values (C{bool}).
515 @return: A C{tuple(map(fstr|str, objs))} of C{str}s.
516 '''
517 return tuple(_streprs(prec, objs, fmt, ints, False, str)) if objs else ()
520def unstr(where, *args, **kwds):
521 '''Return the string representation of an invokation.
523 @arg where: Class, function, method (C{type}) or name (C{str}).
524 @arg args: Optional positional arguments.
525 @kwarg kwds: Optional keyword arguments, except
526 C{B{_ELLIPSIS}=False}.
528 @return: Representation (C{str}).
529 '''
530 t = reprs(args, fmt=Fmt.g) if args else ()
531 if kwds and _xkwds_pop(kwds, _ELLIPSIS=False):
532 t += _ELLIPSIS_,
533 if kwds:
534 t += pairs(itemsorted(kwds), fmt=Fmt.g)
535 n = where if isstr(where) else _dunder_nameof(where)
536 return Fmt.PAREN(n, _COMMASPACE_.join(t))
539def _0wd(*w_i): # in .osgr, .wgrs
540 '''(INTERNAL) Int formatter'.
541 '''
542 return '%0*d' % w_i
545def _0wdot(w, f, dot=0):
546 '''(INTERNAL) Int and Float formatter'.
547 '''
548 s = _0wd(w, int(f))
549 if dot:
550 s = _DOT_(s[:dot], s[dot:])
551 return s
554def _0wpF(*w_p_f): # in .dms, .osgr
555 '''(INTERNAL) Float deg, min, sec formatter'.
556 '''
557 return '%0*.*f' % w_p_f # XXX was F
560def _xattrs(insto, other, *attrs): # see .errors._xattr
561 '''(INTERNAL) Copy attribute values from B{C{other}} to B{C{insto}}.
563 @arg insto: Object to copy attribute values to (any C{type}).
564 @arg other: Object to copy attribute values from (any C{type}).
565 @arg attrs: One or more attribute names (C{str}s).
567 @return: Object B{C{insto}}, updated.
569 @raise AttributeError: An B{C{attrs}} doesn't exist
570 or is not settable.
571 '''
572 def _getattr(o, a):
573 if hasattr(o, a):
574 return getattr(o, a)
575 try:
576 n = o._DOT_(a)
577 except AttributeError:
578 n = Fmt.DOT(a)
579 raise _AttributeError(o, name=n)
581 for a in attrs:
582 s = _getattr(other, a)
583 g = _getattr(insto, a)
584 if (g is None and s is not None) or g != s:
585 setattr(insto, a, s) # not settable?
586 return insto
589def _xzipairs(names, values, sep=_COMMASPACE_, fmt=NN, pair_fmt=Fmt.COLON):
590 '''(INTERNAL) Zip C{names} and C{values} into a C{str}, joined and bracketed.
591 '''
592 try:
593 t = sep.join(pair_fmt(*t) for t in _zip(names, values)) # strict=True
594 except Exception as x:
595 raise _ValueError(names=names, values=values, cause=x)
596 return (fmt % (t,)) if fmt else t # enc
598# **) MIT License
599#
600# Copyright (C) 2016-2024 -- mrJean1 at Gmail -- All Rights Reserved.
601#
602# Permission is hereby granted, free of charge, to any person obtaining a
603# copy of this software and associated documentation files (the "Software"),
604# to deal in the Software without restriction, including without limitation
605# the rights to use, copy, modify, merge, publish, distribute, sublicense,
606# and/or sell copies of the Software, and to permit persons to whom the
607# Software is furnished to do so, subject to the following conditions:
608#
609# The above copyright notice and this permission notice shall be included
610# in all copies or substantial portions of the Software.
611#
612# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
613# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
614# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
615# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
616# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
617# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
618# OTHER DEALINGS IN THE SOFTWARE.