1# -*- coding: utf-8 -*-

2

3 u'''Single C{str}ing constants, C{intern}'ed across C{pygeodesy}

4 modules and function L{pygeodesy.machine}.

5'''

6 import sys as _sys

7 try:

8 _intern = intern # PYCHOK in .lazily

9 except NameError: # Python 3+

10 _intern = _sys.intern

11

12_COMMASPACE_ = ', ' # overriden below

13_pf2List = [] # cached _platform2 list

14_Py3List = [] # cached _pythonarchine list

15

16_sub_packages = 'auxilats', 'deprecated', 'geodesicx', 'rhumb' # PYCHOK in .lazily,

17# ... make._dist, MANIFEST, setup.setup, test.bases, test.testModules

18

19

20 class _Dash(str):

21 '''(INTERNAL) Extended C{str} for prefix_DASH_.

22 '''

23 def __call__(self, *args):

24 '''Join C{self} plus all B{C{args}} like C{'-'.join((self,) + B{args})}.

25 '''

26 return _DASH_(self, *args) # re-callable

27

28

29 class _Int(int):

30 '''(INTERNAL) Unique C{int}.

31 '''

32 pass

33

34

35 class Str_(str):

36 '''Extended, I{callable} C{str} class, not nameable.

37

38 @see: Nameable and callable class L{pygeodesy.Str}.

39 '''

40 def join_(self, *args):

41 '''Join all positional B{C{args}} like C{self.join(B{args})}.

42

43 @return: All B{C{args}} joined by this instance (L{Str_}).

44

45 @note: An other L{Str_} instance is returned to make the

46 result re-callable.

47 '''

48 return Str_(str.join(self, map(str, args))) # re-callable

49

50 __call__ = join_

51

52 NN = Str_('') # PYCHOK Nomen Nescio <https://Wiktionary.org/wiki/N.N.>

53

54

55 class _Prefix(Str_):

56 '''(INTERNAL) Extended C{str} for prefix.

57 '''

58 def __call__(self, *args):

59 '''Join C{self} plus all B{C{args}} like C{" ".join((self,) + B{args})}.

60 '''

61 return _SPACE_.join_(self, *args) # re-callable

62

63

64 class _PyPy__(str): # overwritten by singleton below

65 '''(INTERNAL) Extended C{str} for C{"PyPy"} and version.

66 '''

67 def __call__(self, version=NN):

68 '''Return C{"PyPy <version>"} or C{NN}.

69 '''

70 v = version or _sys.version

71 if _PyPy__ in v:

72 v = v.split(_PyPy__)[1].split(None, 1)[0] # == _DOT_.join(_sys.pypy_version_info[:3])

73 return NN(_PyPy__, v)

74 else:

75 return NN

76

77

78 class _Python_(str): # overwritten by singleton below

79 '''(INTERNAL) Extended C{str} for C{"Python"} and version.

80 '''

81 def __call__(self, version=NN):

82 '''Return C{"Python <version>"}.

83 '''

84 v = version or _sys.version

85 return _SPACE_(self, v.split(None, 1)[0])

86

87

88 class _Range(str):

89 '''(INTERNAL) Extended C{str} for C{range} strings.

90 '''

91 def __call__(self, lo, hi, lopen=False, ropen=False,

92 prec=0, sep=_COMMASPACE_):

93 '''Return the range as C{"(lo, hi)"}, C{"(lo, hi]"},

94 C{"[lo, hi)"} or C{"[lo, hi]"}.

95 '''

96 from pygeodesy.streprs import Fmt

97 r = NN(Fmt.f(lo, prec=prec), sep,

98 Fmt.f(hi, prec=prec))

99 f = (Fmt.PAREN if ropen else Fmt.LOPEN) if lopen else \

100 (Fmt.ROPEN if ropen else Fmt.SQUARE)

101 return f(r)

102

103

104 class _Slicer(str):

105 '''(INTERNAL) String slicer C{.fromX} or C{.tillY}.

106 '''

107 def __getattr__(self, name): # .fromX, .tillY

108 n = len(name) - 4

109 if n > 0:

110 # assert len('till') == len(_from_) == 4

111 if name.startswith('till'):

112 i = self.find(name[4:])

113 return self if i < 0 else _Slicer(self[:i + n])

114 elif name.startswith(_from_):

115 i = self.find(name[4:])

116 return self if i < 0 else _Slicer(self[i:])

117 return str.__getattr__(self, name) # PYCHOK no cover

118

119

120 class MISSING(object):

121 '''(INTERNAL) Singleton C{str}.

122 '''

123 def toRepr(self, **unused):

124 return self.__class__.__name__

125

126 __repr__ = __str__ = toStr = toRepr

127

128 MISSING = MISSING() # PYCHOK singleton

129 MISSING.__name__ = str(MISSING)

130

131# __DUNDER__-style names would get mangled in classes

132_0_ = '0' # PYCHOK 'zero'

133_0to9_ = '0123456789' # PYCHOK OK

134_1_ = '1' # PYCHOK OK

135_2_ = '2' # PYCHOK OK

136_3_ = '3' # PYCHOK OK

137_4_ = '4' # PYCHOK OK

138_a_ = 'a' # PYCHOK OK

139_A_ = 'A' # PYCHOK OK

140_a12_ = 'a12' # PYCHOK OK

141_area_ = 'area' # PYCHOK OK

142_Airy1830_ = 'Airy1830' # PYCHOK OK

143_AiryModified_ = 'AiryModified' # PYCHOK OK

144_ambiguous_ = 'ambiguous' # PYCHOK OK

145_AMPERSAND_ = Str_('&') # PYCHOK OK

146_an_ = 'an' # PYCHOK OK

147_and_ = 'and' # PYCHOK OK

148# _AND_ = _AMPERSAND_ # PYCHOK OK

149_angle_ = 'angle' # PYCHOK OK

150_antipodal_ = 'antipodal' # PYCHOK OK

151_areaOf_ = 'areaOf' # PYCHOK OK

152_arg_ = 'arg' # PYCHOK OK

153# _ASTERISK_ = _STAR_ # PYCHOK OK

154_at_ = 'at' # PYCHOK OK

155_AT_ = Str_('@') # PYCHOK OK

156_AtoZnoIO_ = _Slicer('ABCDEFGHJKLMNPQRSTUVWXYZ') # PYCHOK in .gars, .mgrs and .wgrs

157_attribute_ = 'attribute' # PYCHOK OK

158_azi1_ = 'azi1' # PYCHOK OK

159_azi12_ = 'azi12' # PYCHOK OK

160_azi2_ = 'azi2' # PYCHOK OK

161_azimuth_ = 'azimuth' # PYCHOK OK

162_b_ = 'b' # PYCHOK OK

163_B_ = 'B' # PYCHOK OK

164_BACKSLASH_ = Str_('\\') # PYCHOK OK

165_band_ = 'band' # PYCHOK OK

166_BANG_ = Str_('!') # PYCHOK OK

167_BAR_ = Str_('|') # PYCHOK OK

168_bearing_ = 'bearing' # PYCHOK OK

169_Bessel1841_ = 'Bessel1841' # PYCHOK OK

170_beta_ = 'beta' # PYCHOK OK

171_by_ = 'by' # PYCHOK OK

172_c_ = 'c' # PYCHOK OK

173_C_ = 'C' # PYCHOK OK

174_cartesian_ = 'cartesian' # PYCHOK OK

175_center_ = 'center' # PYCHOK OK

176# _CIRCUMFLEX_ = Str_('^') # PYCHOK OK

177_Clarke1866_ = 'Clarke1866' # PYCHOK OK

178_Clarke1880IGN_ = 'Clarke1880IGN' # PYCHOK OK

179_clip_ = 'clip' # PYCHOK OK

180_clipid_ = 'clipid' # PYCHOK OK

181_coincident_ = 'coincident' # PYCHOK OK

182_colinear_ = 'colinear' # PYCHOK OK

183_COLON_ = Str_(':') # PYCHOK OK

184_COLONSPACE_ = Str_(': ') # PYCHOK OK

185_COMMA_ = Str_(',') # PYCHOK OK

186_COMMASPACE_ = Str_(_COMMASPACE_) # PYCHOK OK

187_composite_ = 'composite' # PYCHOK OK

188_concentric_ = 'concentric' # PYCHOK OK

189_convergence_ = _Prefix('convergence') # PYCHOK OK

190_conversion_ = 'conversion' # PYCHOK OK

191_convex_ = 'convex' # PYCHOK OK

192_cubic_ = 'cubic' # PYCHOK OK

193_d_ = 'd' # PYCHOK OK

194_D_ = 'D' # PYCHOK OK

195_DASH_ = Str_('-') # PYCHOK == _MINUS_

196_datum_ = 'datum' # PYCHOK OK

197_decode3_ = 'decode3' # PYCHOK OK

198_deg_ = 'deg' # PYCHOK OK

199_degrees_ = 'degrees' # PYCHOK OK

200_degrees2_ = 'degrees2' # PYCHOK SQUARED

201_delta_ = 'delta' # PYCHOK OK

202_DEPRECATED_ = 'DEPRECATED' # PYCHOK OK

203_DEQUALSPACED_ = Str_(' == ') # PYCHOK OK

204_distance_ = 'distance' # PYCHOK OK

205_distant_ = _Prefix('distant') # PYCHOK OK

206_doesn_t_exist_ = "doesn't exist" # PYCHOK OK

207_DOT_ = Str_('.') # PYCHOK OK

208_down_ = 'down' # PYCHOK OK

209_e_ = 'e' # PYCHOK OK

210_E_ = 'E' # PYCHOK OK

211_earth_ = 'earth' # PYCHOK OK

212_east_ = 'east' # PYCHOK OK

213_easting_ = 'easting' # PYCHOK OK

214_ecef_ = 'ecef' # PYCHOK OK

215_edge_ = 'edge' # PYCHOK OK

216_elevation_ = 'elevation' # PYCHOK OK

217_ELLIPSIS_ = Str_('...') # PYCHOK OK

218_ELLIPSIS4_ = Str_('....') # PYCHOK OK

219# _ELLIPSISPACED_ = Str_(' ... ') # PYCHOK <https://www.ThePunctuationGuide.com/ellipses.html>

220_ellipsoid_ = 'ellipsoid' # PYCHOK OK

221_ellipsoidal_ = 'ellipsoidal' # PYCHOK OK

222_enabled_ = 'enabled' # PYCHOK OK

223_encode_ = 'encode' # PYCHOK OK

224_end_ = 'end' # PYCHOK OK

225_epoch_ = 'epoch' # PYCHOK OK

226_eps_ = 'eps' # PYCHOK OK

227_EQUAL_ = Str_('=') # PYCHOK OK

228_EQUALSPACED_ = Str_(' = ') # PYCHOK OK

229_Error_ = 'Error' # PYCHOK OK

230_exceed_PI_radians_ = 'exceed PI radians' # PYCHOK OK

231_exceeds_ = _Prefix('exceeds') # PYCHOK OK

232# _EXCLAMATION_ = _BANG_ # PYCHOK OK

233_exists_ = 'exists' # PYCHOK OK

234_f_ = 'f' # PYCHOK OK

235_F_ = 'F' # PYCHOK OK

236_feet_ = 'feet' # PYCHOK OK

237_few_ = 'few' # PYCHOK OK

238_fi_ = 'fi' # PYCHOK OK

239_finite_ = 'finite' # PYCHOK OK

240_from_ = 'from' # PYCHOK OK

241_g_ = 'g' # PYCHOK OK

242_gamma_ = 'gamma' # PYCHOK OK

243_GRS80_ = 'GRS80' # PYCHOK OK

244_h_ = 'h' # PYCHOK OK

245_H_ = 'H' # PYCHOK OK

246_HASH_ = '#' # PYCHOK OK

247_height_ = 'height' # PYCHOK OK

248_hemipole_ = 'hemipole' # PYCHOK OK

249_i_ = 'i' # PYCHOK OK

250_iadd_op_ = '+=' # PYCHOK OK

251_immutable_ = 'immutable' # PYCHOK OK

252_in_ = 'in' # PYCHOK OK

253_incompatible_ = 'incompatible' # PYCHOK OK

254_INF_ = 'INF' # PYCHOK OK

255_infinite_ = 'infinite' # PYCHOK _not_finite_

256_initial_ = 'initial' # PYCHOK OK

257_inside_ = 'inside' # PYCHOK OK

258_insufficient_ = 'insufficient' # PYCHOK OK

259_intersection_ = 'intersection' # PYCHOK OK

260_Intl1924_ = 'Intl1924' # PYCHOK OK

261_invalid_ = 'invalid' # PYCHOK OK

262_invokation_ = 'invokation' # PYCHOK OK

263_isclockwise_ = 'isclockwise' # PYCHOK OK

264_ispolar_ = 'ispolar' # PYCHOK OK

265_j_ = 'j' # PYCHOK OK

266_k0_ = 'k0' # PYCHOK OK

267_kind_ = 'kind' # PYCHOK OK

268_knots_ = 'knots' # PYCHOK OK

269_Krassovski1940_ = 'Krassovski1940' # PYCHOK OK

270_Krassowsky1940_ = 'Krassowsky1940' # PYCHOK OK

271_LANGLE_ = '<' # PYCHOK OK

272_lam_ = 'lam' # PYCHOK OK

273_lat_ = 'lat' # PYCHOK OK

274_lat0_ = 'lat0' # PYCHOK OK

275_lat1_ = 'lat1' # PYCHOK OK

276_lat2_ = 'lat2' # PYCHOK OK

277_latlon_ = 'latlon' # PYCHOK OK

278_LatLon_ = 'LatLon' # PYCHOK OK

279_LCURLY_ = '{' # PYCHOK LBRACE

280_len_ = 'len' # PYCHOK OK

281_limit_ = 'limit' # PYCHOK OK

282_line_ = 'line' # PYCHOK OK

283_linear_ = 'linear' # PYCHOK OK

284_LPAREN_ = '(' # PYCHOK OK

285_lon_ = 'lon' # PYCHOK OK

286_lon0_ = 'lon0' # PYCHOK OK

287_lon1_ = 'lon1' # PYCHOK OK

288_lon2_ = 'lon2' # PYCHOK OK

289_low_ = 'low' # PYCHOK OK

290_LSQUARE_ = '[' # PYCHOK LBRACK

291_ltp_ = 'ltp' # PYCHOK OK

292_m_ = 'm' # PYCHOK OK

293_M_ = 'M' # PYCHOK OK

294_m12_ = 'm12' # PYCHOK OK

295_M12_ = 'M12' # PYCHOK OK

296_M21_ = 'M21' # PYCHOK OK

297_MANT_DIG_ = 'MANT_DIG' # PYCHOK OK

298_MAX_ = 'MAX' # PYCHOK OK

299_mean_ = 'mean' # PYCHOK OK

300_meanOf_ = 'meanOf' # PYCHOK OK

301_meridional_ = 'meridional' # PYCHOK OK

302_meter_ = 'meter' # PYCHOK OK

303_meter2_ = 'meter2' # PYCHOK SQUARED

304_MGRS_ = 'MGRS' # PYCHOK OK

305_MIN_ = 'MIN' # PYCHOK OK

306_MINUS_ = _DASH_ # PYCHOK OK

307_module_ = 'module' # PYCHOK OK

308_n_ = 'n' # PYCHOK OK

309_N_ = 'N' # PYCHOK OK

310_n_a_ = 'n/a' # PYCHOK OK

311_N_A_ = 'N/A' # PYCHOK OK

312_NAD27_ = 'NAD27' # PYCHOK OK

313_NAD83_ = 'NAD83' # PYCHOK OK

314_name_ = 'name' # PYCHOK OK

315_NAN_ = 'NAN' # PYCHOK OK

316_near_ = _Dash('near') # PYCHOK OK

317_nearestOn2_ = 'nearestOn2' # PYCHOK OK

318_negative_ = 'negative' # PYCHOK OK

319_NL_ = Str_('\n') # PYCHOK OK

320_NLATvar_ = Str_(_NL_ + '@var ') # PYCHOK OK

321_NLHASH_ = Str_(_NL_ + '# ') # PYCHOK OK

322# _NLNL_ = _DNL_ # PYCHOK OK

323_NN_ = 'NN' # PYCHOK OK

324_no_ = _Prefix('no') # PYCHOK OK

325_north_ = 'north' # PYCHOK OK

326_northing_ = 'northing' # PYCHOK OK

327_NorthPole_ = 'NorthPole' # PYCHOK OK

328_not_ = _Prefix('not') # PYCHOK OK

329_NOTEQUAL_ = _BANG_ + _EQUAL_ # PYCHOK OK

330_not_finite_ = 'not finite' # PYCHOK _not_(_finite_), _infinite_

331_not_scalar_ = 'not scalar' # PYCHOK _not_(_scalar_)

332_NTF_ = 'NTF' # PYCHOK OK

333_null_ = 'null' # PYCHOK OK

334_number_ = 'number' # PYCHOK OK

335_numpy_ = 'numpy' # PYCHOK OK

336_Nv00_ = 'Nv00' # PYCHOK OK

337_of_ = 'of' # PYCHOK OK

338_on_ = 'on' # PYCHOK OK

339_opposite_ = 'opposite' # PYCHOK OK

340_or_ = 'or' # PYCHOK OK

341_other_ = 'other' # PYCHOK OK

342_outside_ = 'outside' # PYCHOK OK

343_overlap_ = 'overlap' # PYCHOK OK

344_parallel_ = 'parallel' # PYCHOK OK

345_PERCENT_ = '%' # PYCHOK OK

346_PERCENTDOTSTAR_ = '%.*' # PYCHOK _DOT_(_PERCENT_, _STAR_)

347_phi_ = 'phi' # PYCHOK OK

348_PLUS_ = Str_('+') # PYCHOK OK

349_PLUSMINUS_ = _PLUS_ + _MINUS_ # PYCHOK OK

350_point_ = 'point' # PYCHOK OK

351_points_ = 'points' # PYCHOK OK

352_pole_ = 'pole' # PYCHOK OK

353_precision_ = 'precision' # PYCHOK OK

354_prime_vertical_ = 'prime_vertical' # PYCHOK OK

355_pygeodesy_ = 'pygeodesy' # PYCHOK OK

356_pygeodesy_abspath_ = 'pygeodesy_abspath' # PYCHOK OK

357_PyPy__ = _PyPy__('PyPy ') # PYCHOK + _SPACE_

358_Python_ = _Python_('Python') # PYCHOK singleton

359_python_ = 'python' # PYCHOK OK

360_QUOTE1_ = "'" # PYCHOK OK

361_QUOTE2_ = '"' # PYCHOK OK

362# _QUOTE3_ = "'''" # PYCHOK OK

363# _QUOTE6_ = '"""' # PYCHOK OK

364_R_ = 'R' # PYCHOK OK

365_radians_ = 'radians' # PYCHOK OK

366_radians2_ = 'radians2' # PYCHOK SQUARED

367_radius_ = 'radius' # PYCHOK OK

368_radius1_ = 'radius1' # PYCHOK OK

369_radius2_ = 'radius2' # PYCHOK OK

370_range_ = _Range('range') # PYCHOK OK

371_RANGLE_ = '>' # PYCHOK OK

372_RCURLY_ = '}' # PYCHOK RBRACE

373_reciprocal_ = 'reciprocal' # PYCHOK OK

374_reframe_ = 'reframe' # PYCHOK OK

375_resolution_ = 'resolution' # PYCHOK OK

376_rIn_ = 'rIn' # PYCHOK OK

377_RPAREN_ = ')' # PYCHOK OK

378_RSQUARE_ = ']' # PYCHOK RBRACK

379_s_ = 's' # PYCHOK OK

380_S_ = 'S' # PYCHOK OK

381_s12_ = 's12' # PYCHOK OK

382_S12_ = 'S12' # PYCHOK OK

383_scalar_ = 'scalar' # PYCHOK OK

384_scale_ = 'scale' # PYCHOK OK

385_scale0_ = 'scale0' # PYCHOK OK

386_scipy_ = 'scipy' # PYCHOK OK

387_semi_circular_ = 'semi-circular' # PYCHOK OK

388_sep_ = 'sep' # PYCHOK OK

389_singular_ = 'singular' # PYCHOK OK

390_SLASH_ = Str_('/') # PYCHOK OK

391_small_ = 'small' # PYCHOK OK

392_Sphere_ = 'Sphere' # PYCHOK OK

393_spherical_ = 'spherical' # PYCHOK OK

394_SouthPole_ = 'SouthPole' # PYCHOK OK

395_SPACE_ = Str_(' ') # PYCHOK OK

396_specified_ = 'specified' # PYCHOK OK

397_STAR_ = Str_('*') # PYCHOK OK

398_start_ = 'start' # PYCHOK OK

399_std_ = 'std' # PYCHOK OK

400_stdev_ = 'stdev' # PYCHOK OK

401_supported_ = 'supported' # PYCHOK OK

402_tbd_ = 'tbd' # PYCHOK OK

403_TILDE_ = '~' # PYCHOK OK

404_to_ = 'to' # PYCHOK OK

405_tolerance_ = _Prefix('tolerance') # PYCHOK OK

406_too_ = _Prefix('too') # PYCHOK OK

407_transform_ = 'transform' # PYCHOK OK

408_UNDER_ = Str_('_') # PYCHOK OK

409_units_ = 'units' # PYCHOK OK

410_UNUSED_ = 'UNUSED' # PYCHOK OK

411_up_ = 'up' # PYCHOK OK

412_UPS_ = 'UPS' # PYCHOK OK

413_utf_8_ = 'utf-8' # PYCHOK OK

414_UTM_ = 'UTM' # PYCHOK OK

415_V_ = 'V' # PYCHOK OK

416_valid_ = 'valid' # PYCHOK OK

417_value_ = 'value' # PYCHOK OK

418_version_ = 'version' # PYCHOK OK

419_vs_ = 'vs' # PYCHOK OK

420_W_ = 'W' # PYCHOK OK

421_WGS72_ = 'WGS72' # PYCHOK OK

422_WGS84_ = 'WGS84' # PYCHOK OK

423_width_ = 'width' # PYCHOK OK

424_with_ = 'with' # PYCHOK OK

425_x_ = 'x' # PYCHOK OK

426_X_ = 'X' # PYCHOK OK

427_xyz_ = 'xyz' # PYCHOK OK

428_y_ = 'y' # PYCHOK OK

429_Y_ = 'Y' # PYCHOK OK

430_z_ = 'z' # PYCHOK OK

431_Z_ = 'Z' # PYCHOK OK

432_zone_ = 'zone' # PYCHOK OK

433

434_EW_ = _E_ + _W_ # PYCHOK common cardinals

435_NE_ = _N_ + _E_ # PYCHOK positive ones

436_NS_ = _N_ + _S_ # PYCHOK OK

437_NSEW_ = _NS_ + _EW_ # PYCHOK OK

438_NW_ = _N_ + _W_ # PYCHOK OK

439_SE_ = _S_ + _E_ # PYCHOK OK

440_SW_ = _S_ + _W_ # PYCHOK negative ones

441# _NESW_ = _NE_ + _SW_ # PYCHOK clockwise

442

443_DDOT_ = Str_(_DOT_ * 2) # PYCHOK OK

444# _DEQUAL_ = Str_(_EQUAL_ * 2) # PYCHOK OK

445_DNL_ = Str_(_NL_ * 2) # PYCHOK OK

446# _DSLASH_ = Str_(_SLASH_ * 2) # PYCHOK OK

447# _DSTAR_ = Str_(_STAR_ * 2) # PYCHOK OK

448_DUNDER_ = Str_(_UNDER_ * 2) # PYCHOK OK

449

450_LR_PAIRS = {_LANGLE_: _RANGLE_,

451 _LCURLY_: _RCURLY_,

452 _LPAREN_: _RPAREN_,

453 _LSQUARE_: _RSQUARE_} # PYCHOK OK

454

455

456 def _dunder_nameof(inst, *dflt):

457 '''(INTERNAL) Get the double_underscore __name__ attr.

458 '''

459 try:

460 return inst.__name__

461 except AttributeError:

462 pass

463 return dflt[0] if dflt else inst.__class__.__name__

464

465

466 def _enquote(strs, quote=_QUOTE2_): # in .basics, .solveBase

467 '''(INTERNAL) Enquote a string containing whitespace.

468 '''

469 if len(strs.split()) > 1:

470 strs = NN(quote, strs, quote)

471 return strs

472

473

474 def _headof(name):

475 '''(INTERNAL) Get the head name of qualified C{name} or the C{name}.

476 '''

477 i = name.find(_DOT_)

478 return name if i < 0 else name[:i]

479

480

481 def _is(a, b): # PYCHOK no cover

482 '''(INTERNAL) C{a is b}? in C{PyPy}

483 '''

484 return (a == b) if _isPyPy() else (a is b)

485

486

487 def _isPyPy():

488 '''(INTERNAL) Is this C{PyPy}?

489 '''

490 # platform.python_implementation() == 'PyPy'

491 return _pythonarchine()[0].startswith(_PyPy__)

492

493

494 def _load_lib(name):

495 '''(INTERNAL) Load a C{dylib}, B{C{name}} must startwith('lib').

496 '''

497 # macOS 11+ (aka 10.16) no longer provides direct loading of

498 # system libraries. As a result, C{ctypes.util.find_library}

499 # will not find any library, unless previously installed by a

500 # low-level dlopen(name) call (with the library base C{name}).

501 from ctypes import CDLL

502 from ctypes.util import find_library

503

504 ns = find_library(name), name

505 if _sys.platform[:6] == 'darwin': # and os.name == 'posix'

506 from ctypes import _dlopen, DEFAULT_MODE

507 from os.path import join

508 ns += (_DOT_(name, 'dylib'),

509 _DOT_(name, 'framework'), join(

510 _DOT_(name, 'framework'), name))

511 else: # non-macOS

512 DEFAULT_MODE = 0

513

514 def _dlopen(*unused):

515 return True

516

517 for n in ns:

518 try:

519 if n and _dlopen(n, DEFAULT_MODE): # pre-load handle

520 lib = CDLL(n) # == ctypes.cdll.LoadLibrary(n)

521 if lib._name: # has a qualified name

522 return lib

523 except (AttributeError, OSError):

524 pass

525

526 return None # raise OSError

527

528

529 def machine():

530 '''Return standard C{platform.machine}, but distinguishing Intel I{native}

531 from Intel I{emulation} on Apple Silicon (on macOS only).

532

533 @return: Machine C{'arm64'} for Apple Silicon I{native}, C{'x86_64'}

534 for Intel I{native}, C{"arm64_x86_64"} for Intel I{emulation},

535 etc. (C{str} with C{comma}s replaced by C{underscore}s).

536 '''

537 return _platform2()[1]

538

539

540 def _platform2(sep=NN):

541 '''(INTERNAL) Get platform architecture and machine as C{2-list} or C{str}.

542 '''

543 L = _pf2List

544 if not L:

545 import platform

546 m = platform.machine() # ARM64, arm64, x86_64, iPhone13,2, etc.

547 m = m.replace(_COMMA_, _UNDER_)

548 if m.lower() == 'x86_64': # on Intel or Rosetta2 ...

549 v = platform.mac_ver() # ... and only on macOS ...

550 if v and _version2(v[0]) > (10, 15): # ... 11+ aka 10.16

551 # <https://Developer.Apple.com/forums/thread/659846>

552 if _sysctl_uint('sysctl.proc_translated') == 1: # and \

553# _sysctl_uint('hw.optional.arm64') == 1: # PYCHOK indent

554 m = _UNDER_('arm64', m) # Apple Si emulating Intel x86-64

555 L[:] = [platform.architecture()[0], # bits

556 m] # arm64, arm64_x86_64, x86_64, etc.

557 return sep.join(L) if sep else L # 2-list()

558

559

560 def _pythonarchine(sep=NN): # in test/bases.py versions

561 '''(INTERNAL) Get PyPy and Python versions and C{_platform2} as C{3- or 4-list} or C{str}.

562 '''

563 L = _Py3List

564 if not L:

565 v = _sys.version

566 L[:] = [_Python_(v)] + _platform2()

567 pypy = _PyPy__(v)

568 if pypy:

569 L.insert(0, pypy)

570 return sep.join(L) if sep else L # 3- or 4-list

571

572

573 def _sysctl_uint(name):

574 '''(INTERNAL) Get an unsigned int sysctl item by name, use on macOS ONLY!

575 '''

576 libc = _load_lib('libc')

577 if libc: # <https://StackOverflow.com/questions/759892/python-ctypes-and-sysctl>

578 from ctypes import byref, c_char_p, c_size_t, c_uint, sizeof # get_errno

579 n = name if str is bytes else bytes(name, _utf_8_) # PYCHOK isPython2 = str is bytes

580 u = c_uint(0)

581 z = c_size_t(sizeof(u))

582 r = libc.sysctlbyname(c_char_p(n), byref(u), byref(z), None, c_size_t(0))

583 else: # could find or load 'libc'

584 r = -2

585 return int(r if r else u.value) # -1 ENOENT error, -2 no libc

586

587

588 def _tailof(name):

589 '''(INTERNAL) Get the base name of qualified C{name} or the C{name}.

590 '''

591 i = name.rfind(_DOT_) + 1

592 return name[i:] if i > 0 else name

593

594

595 def _under(name): # PYCHOK in .datums, .auxilats, .ups, .utm, .utmupsBase, ...

596 '''(INTERNAL) Prefix C{name} with I{underscore}.

597 '''

598 return name if name.startswith(_UNDER_) else NN(_UNDER_, name)

599

600

601 def _usage(file_py, *args): # in .etm

602 '''(INTERNAL) Build "usage: python -m ..." cmd line for module B{C{file_py}}.

603 '''

604 import os

605 m = os.path.dirname(file_py).replace(os.getcwd(), _ELLIPSIS_) \

606 .replace(os.sep, _DOT_).strip()

607 b, x = os.path.splitext(os.path.basename(file_py))

608 if x == '.py' and b != '__main__':

609 m = _DOT_(m or _pygeodesy_, b)

610 p = NN(_python_, _sys.version_info[0])

611 return NN('usage', _SPACE_(_COLON_, p, '-m', _enquote(m), *args))

612

613

614 def _version2(version, n=2):

615 '''(INTERNAL) Split C{B{version} str} into a C{1-, 2- or 3-tuple} of C{int}s.

616 '''

617 t = _version_ints(version.split(_DOT_, 2))

618 if len(t) < n:

619 t += (0,) * n

620 return t[:n]

621

622

623 def _version_info(package): # in .Base.karney, .basics

624 '''(INTERNAL) Get the C{package.__version_info__} as a 2- or

625 3-tuple C{(major, minor, revision)} if C{int}s.

626 '''

627 try:

628 return _version_ints(package.__version_info__)

629 except AttributeError:

630 return _version2(package.__version__.strip(), n=3)

631

632

633 def _version_ints(vs):

634 # helper for _version2 and _version_info above

635

636 def _ints(vs):

637 for v in vs:

638 try:

639 yield int(v.strip())

640 except (TypeError, ValueError):

641 pass

642

643 return tuple(_ints(vs))

644

645

646__all__ = (_NN_, # not MISSING!

647 Str_.__name__, # classes

648 machine.__name__) # in .lazily

649__version__ = '24.03.20'

650

651 if __name__ == '__main__':

652

653 from pygeodesy import itemsorted, printf

654

655 t = b = 0

656 for n, v in itemsorted(locals(), asorted=False, reverse=True):

657 if n.endswith(_UNDER_) and n.startswith(_UNDER_) and \

658 not n.startswith(_DUNDER_):

659 t += 1

660 b += len(v)

661 m = n[1:-1]

662 if m != v and m.replace(_UNDER_, _SPACE_) != v:

663 printf('%4d: %s = %r', t, n, v)

664 n = len(locals())

665 printf('%4d (%d) names, %s chars total, %.2f chars avg', t, n, b, float(b) / t, nl=1)

666

667# **) MIT License

668#

669# Copyright (C) 2016-2024 -- mrJean1 at Gmail -- All Rights Reserved.

670#

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

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

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

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

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

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

677#

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

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

680#

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

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

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

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

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

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

687# OTHER DEALINGS IN THE SOFTWARE.