Coverage for pygeodesy/streprs.py: 95%

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1 

2# -*- coding: utf-8 -*- 

3 

4u'''Floating point and other formatting utilities. 

5''' 

6 

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_, _E_, _ELLIPSIS_, _EQUAL_, _H_, _LR_PAIRS, \ 

13 _N_, _name_, _not_, _not_scalar_, _PERCENT_, \ 

14 _SPACE_, _STAR_, _UNDER_, _dunder_nameof 

15from pygeodesy.interns import _convergence_, _distant_, _e_, _EQUALSPACED_, _no_, \ 

16 _exceeds_, _f_, _F_, _g_, _tolerance_ # PYCHOK used! 

17from pygeodesy.lazily import _ALL_LAZY, _ALL_MODS as _MODS 

18 

19from math import fabs, log10 as _log10 

20 

21__all__ = _ALL_LAZY.streprs 

22__version__ = '23.04.16' 

23 

24_EN_PREC = 6 # max MGRS/OSGR precision, 1 micrometer 

25_EN_WIDE = 5 # number of MGRS/OSGR units, log10(_100km) 

26_eps_ = 'eps' # PYCHOK used! 

27_OKd_ = '._-' # acceptable name characters 

28_threshold_ = 'threshold' # PYCHOK used ! 

29 

30 

31class _Fmt(str): # in .streprs 

32 '''(INTERNAL) Callable formatting. 

33 ''' 

34 name = NN 

35 

36 def __call__(self, *name_value_, **name_value): 

37 '''Format a C{name=value} pair or C{name, value} pair 

38 or just a single C{value}. 

39 ''' 

40 for n, v in name_value.items(): 

41 break 

42 else: 

43 if len(name_value_) > 1: 

44 n, v = name_value_[:2] 

45 elif name_value_: 

46 n, v = NN, name_value_[0] 

47 else: 

48 n, v = NN, MISSING 

49 t = str.__mod__(self, v) 

50 return NN(n, t) if n else t 

51 

52# def __mod__(self, arg, **unused): 

53# '''Regular C{%} operator. 

54# ''' 

55# return str.__mod__(self, arg) 

56 

57 

58class Fstr(str): 

59 '''(INTERNAL) C{float} format. 

60 ''' 

61 name = NN 

62 

63 def __call__(self, flt, prec=None, ints=False): 

64 '''Format the B{C{flt}} like function L{fstr}. 

65 ''' 

66 # see also function C{fstr} if isscalar case below 

67 t = str.__mod__(_pct(self), flt) if prec is None else next( 

68 _streprs(prec, (flt,), self, ints, True, None)) 

69 return t 

70 

71 def __mod__(self, arg, **unused): 

72 '''Regular C{%} operator. 

73 

74 @arg arg: A C{scalar} value to be formatted (either 

75 the C{scalar}, or a 1-tuple C{(scalar,)}, 

76 or 2-tuple C{(prec, scalar)}. 

77 

78 @raise TypeError: Non-scalar B{C{arg}} value. 

79 

80 @raise ValueError: Invalid B{C{arg}}. 

81 ''' 

82 def _error(arg): 

83 n = _DOT_(Fstr.__name__, self.name or self) 

84 return _SPACE_(n, _PERCENT_, repr(arg)) 

85 

86 prec = 6 # default std %f and %F 

87 if islistuple(arg): 

88 n = len(arg) 

89 if n == 1: 

90 arg = arg[0] 

91 elif n == 2: 

92 prec, arg = arg 

93 else: 

94 raise _ValueError(_error(arg)) 

95 

96 if not isscalar(arg): 

97 raise _TypeError(_error(arg)) 

98 return self(arg, prec=prec) 

99 

100 

101class _Sub(str): 

102 '''(INTERNAL) Class list formatter. 

103 ''' 

104 # see .ellipsoidalNvector.LatLon.deltaTo 

105 def __call__(self, *Classes): 

106 t = _or(*(C.__name__ for C in Classes)) 

107 return str.__mod__(self, t or MISSING) 

108 

109 

110class Fmt(object): 

111 '''Formatting options. 

112 ''' 

113 ANGLE = _Fmt('<%s>') 

114 COLON = _Fmt(':%s') 

115# COLONSPACE = _Fmt(': %s') # == _COLONSPACE_(n, v) 

116# COMMASPACE = _Fmt(', %s') # == _COMMASPACE_(n, v) 

117 convergence = _Fmt(_convergence_('(%g)')) 

118 CURLY = _Fmt('{%s}') # BRACES 

119 distant = _Fmt(_distant_('(%.3g)')) 

120 DOT = _Fmt('.%s') # == NN(_DOT_, n) 

121 e = Fstr(_e_) 

122 E = Fstr(_E_) 

123 EQUAL = _Fmt(_EQUAL_(NN, '%s')) 

124 EQUALSPACED = _Fmt(_EQUALSPACED_(NN, '%s')) 

125 exceeds_eps = _Fmt(_exceeds_(_eps_, '(%g)')) 

126 f = Fstr(_f_) 

127 F = Fstr(_F_) 

128 g = Fstr(_g_) 

129 G = Fstr('G') 

130 h = Fstr('%+.*f') # height, .streprs.hstr 

131 limit = _Fmt(' %s limit') # .units 

132 LOPEN = _Fmt('(%s]') # left-open range (L, R] 

133 PAREN = _Fmt('(%s)') 

134 PARENSPACED = _Fmt(' (%s)') 

135 QUOTE2 = _Fmt('"%s"') 

136 ROPEN = _Fmt('[%s)') # right-open range [L, R) 

137# SPACE = _Fmt(' %s') # == _SPACE_(n, v) 

138 SQUARE = _Fmt('[%s]') # BRACKETS 

139 sub_class = _Sub('%s (sub-)class') 

140 TAG = ANGLE 

141 TAGEND = _Fmt('</%s>') 

142 tolerance = _Fmt(_tolerance_('(%g)')) 

143 zone = _Fmt('%02d') # .epsg, .mgrs, .utmupsBase 

144 

145 def __init__(self): 

146 for n, a in self.__class__.__dict__.items(): 

147 if isinstance(a, (Fstr, _Fmt)): 

148 setattr(a, _name_, n) 

149 

150 def __call__(self, obj, prec=9): 

151 '''Return C{str(B{obj})} or C{repr(B{obj})}. 

152 ''' 

153 return str(obj) if isint(obj) else next( 

154 _streprs(prec, (obj,), Fmt.g, False, False, repr)) 

155 

156 def no_convergence(self, _d, *tol, **thresh): 

157 t = Fmt.convergence(fabs(_d)) 

158 if tol: 

159 t = _COMMASPACE_(t, Fmt.tolerance(tol[0])) 

160 if thresh and _xkwds_get(thresh, thresh=False): 

161 t = t.replace(_tolerance_, _threshold_) 

162 return _no_(t) 

163 

164Fmt = Fmt() # PYCHOK singleton 

165Fmt.__name__ = Fmt.__class__.__name__ 

166 

167_DOTSTAR_ = Fmt.DOT(_STAR_) 

168# formats %G and %g drop all trailing zeros and the 

169# decimal point, making the float appear as an int 

170_Gg = (Fmt.G, Fmt.g) 

171_FfEeGg = (Fmt.F, Fmt.f, Fmt.E, Fmt.e) + _Gg # float formats 

172_Fspec_ = NN('[%[<flags>][<width>]', _DOTSTAR_, ']', _BAR_.join(_FfEeGg)) # in testStreprs 

173 

174 

175def anstr(name, OKd=_OKd_, sub=_UNDER_): 

176 '''Make a valid name of alphanumeric and OKd characters. 

177 

178 @arg name: The original name (C{str}). 

179 @kwarg OKd: Other acceptable characters (C{str}). 

180 @kwarg sub: Substitute for invalid charactes (C{str}). 

181 

182 @return: The modified name (C{str}). 

183 

184 @note: Leading and trailing whitespace characters are removed, 

185 intermediate whitespace characters are coalesced and 

186 substituted. 

187 ''' 

188 s = n = str(name).strip() 

189 for c in n: 

190 if not (c.isalnum() or c in OKd or c in sub): 

191 s = s.replace(c, _SPACE_) 

192 return sub.join(s.strip().split()) 

193 

194 

195def attrs(inst, *names, **Nones_True__pairs_kwds): # prec=6, fmt=Fmt.F, ints=False, Nones=True, sep=_EQUAL_ 

196 '''Get instance attributes as I{name=value} strings, with C{float}s 

197 formatted by function L{fstr}. 

198 

199 @arg inst: The instance (any C{type}). 

200 @arg names: The attribute names, all other positional (C{str}). 

201 @kwarg Nones_True__pairs_kwds: Keyword argument for function L{pairs}, except 

202 C{B{Nones}=True} to in-/exclude missing or C{None}-valued attributes. 

203 

204 @return: A C{tuple(B{sep}.join(t) for t in zip(B{names}, reprs(values, ...)))} 

205 of C{str}s. 

206 ''' 

207 def _items(inst, names, Nones): 

208 for n in names: 

209 v = getattr(inst, n, None) 

210 if Nones or v is not None: 

211 yield n, v 

212 

213 def _Nones_kwds(Nones=True, **kwds): 

214 return Nones, kwds 

215 

216 Nones, kwds = _Nones_kwds(**Nones_True__pairs_kwds) 

217 return pairs(_items(inst, names, Nones), **kwds) 

218 

219 

220def _boolkwds(inst, **name_value_pairs): # in .frechet, .hausdorff, .heights 

221 '''(INTERNAL) Set applicable C{bool} properties/attributes. 

222 ''' 

223 for n, v in name_value_pairs.items(): 

224 b = getattr(inst, n, None) 

225 if b is None: # invalid bool attr 

226 t = _SPACE_(_EQUAL_(n, repr(v)), 'for', inst.__class__.__name__) # XXX .classname 

227 raise _AttributeError(t, txt=_not_('applicable')) 

228 if v in (False, True) and v != b: 

229 setattr(inst, NN(_UNDER_, n), v) 

230 

231 

232def enstr2(easting, northing, prec, *extras, **wide_dot): 

233 '''Return an MGRS/OSGR easting, northing string representations. 

234 

235 @arg easting: Easting from false easting (C{meter}). 

236 @arg northing: Northing from from false northing (C{meter}). 

237 @arg prec: Precision, the number of I{decimal} digits (C{int}) or if 

238 negative, the number of I{units to drop}, like MGRS U{PRECISION 

239 <https://GeographicLib.SourceForge.io/C++/doc/GeoConvert.1.html#PRECISION>}. 

240 @arg extras: Optional leading items (C{str}s). 

241 @kwarg wide_dot: Optional keword argument C{B{wide}=%d} for the number of I{unit digits} 

242 (C{int}) and C{B{dot}=False} (C{bool}) to insert a decimal point. 

243 

244 @return: B{C{extras}} + 2-tuple C{(str(B{easting}), str(B{northing}))} or 

245 + 2-tuple C{("", "")} for C{B{prec} <= -B{wide}}. 

246 

247 @raise ValueError: Invalid B{C{easting}}, B{C{northing}} or B{C{prec}}. 

248 

249 @note: The B{C{easting}} and B{C{northing}} values are I{truncated, not rounded}. 

250 ''' 

251 t = extras 

252 try: # like .dms.compassPoint 

253 p = min(int(prec), _EN_PREC) 

254 w = p + _xkwds_get(wide_dot, wide=_EN_WIDE) 

255 if w > 0: 

256 f = 10**p # truncate 

257 d = (-p) if p > 0 and _xkwds_get(wide_dot, dot=False) else 0 

258 t += (_0wdot(w, int(easting * f), d), 

259 _0wdot(w, int(northing * f), d)) 

260 else: # prec <= -_EN_WIDE 

261 t += (NN, NN) 

262 except (TypeError, ValueError) as x: 

263 raise _ValueError(easting=easting, northing=northing, prec=prec, cause=x) 

264 return t 

265 

266if enstr2.__doc__: # PYCHOK expected 

267 enstr2.__doc__ %= (_EN_WIDE,) 

268 

269 

270def _enstr2m3(estr, nstr, wide=_EN_WIDE): # in .mgrs, .osgr 

271 '''(INTERNAL) Convert east- and northing C{str}s to meter and resolution. 

272 ''' 

273 def _s2m2(s, m): # e or n str to float meter 

274 if _DOT_ in s: 

275 m = 1 # meter 

276 else: 

277 s += _0_ * wide 

278 s = _DOT_(s[:wide], s[wide:wide+_EN_PREC]) 

279 return float(s), m 

280 

281 e, m = _s2m2(estr, 0) 

282 n, m = _s2m2(nstr, m) 

283 if not m: 

284 p = max(len(estr), len(nstr)) # 2 = km, 5 = m, 7 = cm 

285 m = 10**max(-_EN_PREC, wide - p) # resolution, meter 

286 return e, n, m 

287 

288 

289def fstr(floats, prec=6, fmt=Fmt.F, ints=False, sep=_COMMASPACE_, strepr=None): 

290 '''Convert one or more floats to string, optionally stripped of trailing zero decimals. 

291 

292 @arg floats: Single or a list, sequence, tuple, etc. (C{scalar}s). 

293 @kwarg prec: The C{float} precision, number of decimal digits (0..9). 

294 Trailing zero decimals are stripped if B{C{prec}} is 

295 positive, but kept for negative B{C{prec}} values. In 

296 addition, trailing decimal zeros are stripped for U{alternate, 

297 form '#'<https://docs.Python.org/3/library/stdtypes.html 

298 #printf-style-string-formatting>}. 

299 @kwarg fmt: Optional, C{float} format (C{str}). 

300 @kwarg ints: Optionally, remove the decimal dot for C{int} values (C{bool}). 

301 @kwarg sep: Separator joining the B{C{floats}} (C{str}). 

302 @kwarg strepr: Optional callable to format non-C{floats} (typically 

303 C{repr}, C{str}) or C{None} to raise a TypeError. 

304 

305 @return: The C{sep.join(strs(floats, ...)} joined (C{str}) or single 

306 C{strs((floats,), ...)} (C{str}) if B{C{floats}} is C{scalar}. 

307 ''' 

308 if isscalar(floats): # see Fstr.__call__ above 

309 return next(_streprs(prec, (floats,), fmt, ints, True, strepr)) 

310 else: 

311 return sep.join(_streprs(prec, floats, fmt, ints, True, strepr)) 

312 

313 

314def _fstrENH2(inst, prec, m): # in .css, .lcc, .utmupsBase 

315 # (INTERNAL) For C{Css.} and C{Lcc.} C{toRepr} and C{toStr} and C{UtmUpsBase._toStr}. 

316 t = inst.easting, inst.northing 

317 t = tuple(_streprs(prec, t, Fmt.F, False, True, None)) 

318 T = _E_, _N_ 

319 if m is not None and fabs(inst.height): # fabs(self.height) > EPS 

320 t += hstr(inst.height, prec=-2, m=m), 

321 T += _H_, 

322 return t, T 

323 

324 

325def _fstrLL0(inst, prec, toRepr): # in .azimuthal, .css 

326 # (INTERNAL) For C{_AlbersBase.}, C{_AzimuthalBase.} and C{CassiniSoldner.} 

327 t = tuple(_streprs(prec, inst.latlon0, Fmt.F, False, True, None)) 

328 if toRepr: 

329 n = inst.name 

330 if n: 

331 t += Fmt.EQUAL(_name_, repr(n)), 

332 t = Fmt.PAREN(inst.classname, _COMMASPACE_.join(t)) 

333 return t 

334 

335 

336def fstrzs(efstr, ap1z=False): 

337 '''Strip trailing zero decimals from a C{float} string. 

338 

339 @arg efstr: Float with or without exponent (C{str}). 

340 @kwarg ap1z: Append the decimal point and one zero decimal 

341 if the B{C{efstr}} is all digits (C{bool}). 

342 

343 @return: Float (C{str}). 

344 ''' 

345 s = efstr.find(_DOT_) 

346 if s >= 0: 

347 e = efstr.rfind(Fmt.e) 

348 if e < 0: 

349 e = efstr.rfind(Fmt.E) 

350 if e < 0: 

351 e = len(efstr) 

352 s += 2 # keep 1st _DOT_ + _0_ 

353 if s < e and efstr[e-1] == _0_: 

354 efstr = NN(efstr[:s], efstr[s:e].rstrip(_0_), efstr[e:]) 

355 

356 elif ap1z: 

357 # %.G and %.g formats may drop the decimal 

358 # point and all trailing zeros, ... 

359 if efstr.isdigit(): 

360 efstr += _DOT_ + _0_ # ... append or ... 

361 else: # ... insert one dot and zero 

362 e = efstr.rfind(Fmt.e) 

363 if e < 0: 

364 e = efstr.rfind(Fmt.E) 

365 if e > 0: 

366 efstr = NN(efstr[:e], _DOT_, _0_, efstr[e:]) 

367 

368 return efstr 

369 

370 

371def hstr(height, prec=2, fmt=Fmt.h, ints=False, m=NN): 

372 '''Return a string for the height value. 

373 

374 @arg height: Height value (C{float}). 

375 @kwarg prec: The C{float} precision, number of decimal digits (0..9). 

376 Trailing zero decimals are stripped if B{C{prec}} is 

377 positive, but kept for negative B{C{prec}} values. 

378 @kwarg fmt: Optional, C{float} format (C{str}). 

379 @kwarg ints: Optionally, remove the decimal dot for C{int} values (C{bool}). 

380 @kwarg m: Optional unit of the height (C{str}). 

381 ''' 

382 h = next(_streprs(prec, (height,), fmt, ints, True, None)) 

383 return NN(h, str(m)) if m else h 

384 

385 

386def instr(inst, *args, **kwds): 

387 '''Return the string representation of an instantiation. 

388 

389 @arg inst: The instance (any C{type}). 

390 @arg args: Optional positional arguments. 

391 @kwarg kwds: Optional keyword arguments. 

392 

393 @return: Representation (C{str}). 

394 ''' 

395 return unstr(_MODS.named.classname(inst), *args, **kwds) 

396 

397 

398def lrstrip(txt, lrpairs=_LR_PAIRS): 

399 '''Left- I{and} right-strip parentheses, brackets, etc. from a string. 

400 

401 @arg txt: String to be stripped (C{str}). 

402 @kwarg lrpairs: Parentheses, etc. to remove (C{dict} of one or several 

403 C{(Left, Right)} pairs). 

404 

405 @return: Stripped B{C{txt}} (C{str}). 

406 ''' 

407 _e, _s, _n = str.endswith, str.startswith, len 

408 while _n(txt) > 2: 

409 for L, R in lrpairs.items(): 

410 if _e(txt, R) and _s(txt, L): 

411 txt = txt[_n(L):-_n(R)] 

412 break # restart 

413 else: 

414 return txt 

415 

416 

417def pairs(items, prec=6, fmt=Fmt.F, ints=False, sep=_EQUAL_): 

418 '''Convert items to I{name=value} strings, with C{float}s handled like L{fstr}. 

419 

420 @arg items: Name-value pairs (C{dict} or 2-{tuple}s of any C{type}s). 

421 @kwarg prec: The C{float} precision, number of decimal digits (0..9). 

422 Trailing zero decimals are stripped if B{C{prec}} is 

423 positive, but kept for negative B{C{prec}} values. 

424 @kwarg fmt: Optional, C{float} format (C{str}). 

425 @kwarg ints: Optionally, remove the decimal dot for C{int} values (C{bool}). 

426 @kwarg sep: Separator joining I{names} and I{values} (C{str}). 

427 

428 @return: A C{tuple(B{sep}.join(t) for t in B{items}))} of C{str}s. 

429 ''' 

430 try: 

431 if isinstance(items, dict): 

432 items = itemsorted(items) 

433 elif not islistuple(items): 

434 items = tuple(items) 

435 # can't unzip empty items tuple, list, etc. 

436 n, v = _zip(*items) if items else ((), ()) # strict=True 

437 except (TypeError, ValueError): 

438 raise _IsnotError(dict.__name__, '2-tuples', items=items) 

439 v = _streprs(prec, v, fmt, ints, False, repr) 

440 return tuple(sep.join(t) for t in _zip(map(str, n), v)) # strict=True 

441 

442 

443def _pct(fmt): 

444 '''(INTERNAL) Prefix C{%} if needed. 

445 ''' 

446 return fmt if _PERCENT_ in fmt else NN(_PERCENT_, fmt) 

447 

448 

449def reprs(objs, prec=6, fmt=Fmt.F, ints=False): 

450 '''Convert objects to C{repr} strings, with C{float}s handled like L{fstr}. 

451 

452 @arg objs: List, sequence, tuple, etc. (any C{type}s). 

453 @kwarg prec: The C{float} precision, number of decimal digits (0..9). 

454 Trailing zero decimals are stripped if B{C{prec}} is 

455 positive, but kept for negative B{C{prec}} values. 

456 @kwarg fmt: Optional, C{float} format (C{str}). 

457 @kwarg ints: Optionally, remove the decimal dot for C{int} values (C{bool}). 

458 

459 @return: A C{tuple(map(fstr|repr, objs))} of C{str}s. 

460 ''' 

461 return tuple(_streprs(prec, objs, fmt, ints, False, repr)) if objs else () 

462 

463 

464def _resolution10(resolution, Error=ValueError): # in .mgrs, .osgr 

465 '''(INTERNAL) Validate C{resolution} in C{meter}. 

466 ''' 

467 try: 

468 r = int(_log10(resolution)) 

469 if _EN_WIDE < r or r < -_EN_PREC: 

470 raise ValueError 

471 except (ValueError, TypeError): 

472 raise Error(resolution=resolution) 

473 return _MODS.units.Meter(resolution=10**r) 

474 

475 

476def _streprs(prec, objs, fmt, ints, force, strepr): 

477 '''(INTERNAL) Helper for C{fstr}, C{pairs}, C{reprs} and C{strs} 

478 ''' 

479 # <https://docs.Python.org/3/library/stdtypes.html#printf-style-string-formatting> 

480 if fmt in _FfEeGg: 

481 fGg = fmt in _Gg 

482 fmt = NN(_PERCENT_, _DOT_, abs(prec), fmt) 

483 

484 elif fmt.startswith(_PERCENT_): 

485 fGg = False 

486 try: # to make sure fmt is valid 

487 f = fmt.replace(_DOTSTAR_, Fmt.DOT(abs(prec))) 

488 _ = f % (_0_0,) 

489 except (TypeError, ValueError): 

490 raise _ValueError(fmt=fmt, txt=_not_(repr(_DOTSTAR_))) 

491 fmt = f 

492 

493 else: 

494 raise _ValueError(fmt=fmt, txt=_not_(repr(_Fspec_))) 

495 

496 for i, o in enumerate(objs): 

497 if force or isinstance(o, float): 

498 t = fmt % (float(o),) 

499 if ints and t.rstrip(_0to9_ if isint(o, both=True) else 

500 _0_).endswith(_DOT_): 

501 t = t.split(_DOT_)[0] 

502 elif prec > 1: 

503 t = fstrzs(t, ap1z=fGg) 

504 elif strepr: 

505 t = strepr(o) 

506 else: 

507 t = Fmt.PARENSPACED(Fmt.SQUARE(objs=i), o) 

508 raise TypeError(_SPACE_(t, _not_scalar_)) 

509 yield t 

510 

511 

512def strs(objs, prec=6, fmt=Fmt.F, ints=False): 

513 '''Convert objects to C{str} strings, with C{float}s handled like L{fstr}. 

514 

515 @arg objs: List, sequence, tuple, etc. (any C{type}s). 

516 @kwarg prec: The C{float} precision, number of decimal digits (0..9). 

517 Trailing zero decimals are stripped if B{C{prec}} is 

518 positive, but kept for negative B{C{prec}} values. 

519 @kwarg fmt: Optional, C{float} format (C{str}). 

520 @kwarg ints: Optionally, remove the decimal dot for C{int} values (C{bool}). 

521 

522 @return: A C{tuple(map(fstr|str, objs))} of C{str}s. 

523 ''' 

524 return tuple(_streprs(prec, objs, fmt, ints, False, str)) if objs else () 

525 

526 

527def unstr(where, *args, **kwds): 

528 '''Return the string representation of an invokation. 

529 

530 @arg where: Class, function, method (C{type}) or name (C{str}). 

531 @arg args: Optional positional arguments. 

532 @kwarg kwds: Optional keyword arguments, except 

533 C{B{_ELLIPSIS}=False}. 

534 

535 @return: Representation (C{str}). 

536 ''' 

537 t = reprs(args, fmt=Fmt.g) if args else () 

538 if kwds and _xkwds_pop(kwds, _ELLIPSIS=False): 

539 t += _ELLIPSIS_, 

540 if kwds: 

541 t += pairs(itemsorted(kwds), fmt=Fmt.g) 

542 n = where if isstr(where) else _dunder_nameof(where) 

543 return Fmt.PAREN(n, _COMMASPACE_.join(t)) 

544 

545 

546def _0wd(*w_i): # in .osgr, .wgrs 

547 '''(INTERNAL) Int formatter'. 

548 ''' 

549 return '%0*d' % w_i 

550 

551 

552def _0wdot(w, f, dot=0): 

553 '''(INTERNAL) Int and Float formatter'. 

554 ''' 

555 s = _0wd(w, int(f)) 

556 if dot: 

557 s = _DOT_(s[:dot], s[dot:]) 

558 return s 

559 

560 

561def _0wpF(*w_p_f): # in .dms, .osgr 

562 '''(INTERNAL) Float deg, min, sec formatter'. 

563 ''' 

564 return '%0*.*f' % w_p_f # XXX was F 

565 

566 

567def _xattrs(insto, other, *attrs): 

568 '''(INTERNAL) Copy attribute values from B{C{other}} to B{C{insto}}. 

569 

570 @arg insto: Object to copy attribute values to (any C{type}). 

571 @arg other: Object to copy attribute values from (any C{type}). 

572 @arg attrs: One or more attribute names (C{str}s). 

573 

574 @return: Object B{C{insto}}, updated. 

575 

576 @raise AttributeError: An B{C{attrs}} doesn't exist 

577 or is not settable. 

578 ''' 

579 def _getattr(o, a): 

580 if hasattr(o, a): 

581 return getattr(o, a) 

582 try: 

583 n = o._DOT_(a) 

584 except AttributeError: 

585 n = Fmt.DOT(a) 

586 raise _AttributeError(o, name=n) 

587 

588 for a in attrs: 

589 s = _getattr(other, a) 

590 g = _getattr(insto, a) 

591 if (g is None and s is not None) or g != s: 

592 setattr(insto, a, s) # not settable? 

593 return insto 

594 

595 

596def _xzipairs(names, values, sep=_COMMASPACE_, fmt=NN, pair_fmt=Fmt.COLON): 

597 '''(INTERNAL) Zip C{names} and C{values} into a C{str}, joined and bracketed. 

598 ''' 

599 try: 

600 t = sep.join(pair_fmt(*t) for t in _zip(names, values)) # strict=True 

601 except Exception as x: 

602 raise _ValueError(names=names, values=values, cause=x) 

603 return (fmt % (t,)) if fmt else t 

604 

605# **) MIT License 

606# 

607# Copyright (C) 2016-2023 -- mrJean1 at Gmail -- All Rights Reserved. 

608# 

609# Permission is hereby granted, free of charge, to any person obtaining a 

610# copy of this software and associated documentation files (the "Software"), 

611# to deal in the Software without restriction, including without limitation 

612# the rights to use, copy, modify, merge, publish, distribute, sublicense, 

613# and/or sell copies of the Software, and to permit persons to whom the 

614# Software is furnished to do so, subject to the following conditions: 

615# 

616# The above copyright notice and this permission notice shall be included 

617# in all copies or substantial portions of the Software. 

618# 

619# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 

620# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 

621# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 

622# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR 

623# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 

624# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 

625# OTHER DEALINGS IN THE SOFTWARE.