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_COMMASPACE_ = ', ' # overriden below

7_pl2List = None # cached _platform2 lists

8_Py3List = None # cached _pythonarchine lists

9

10

11 class _Dash(str):

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

13 '''

14 def __call__(self, *args):

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

16 '''

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

18

19

20 class _Int(int):

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

22 '''

23 pass

24

25

26 class Str_(str):

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

28

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

30 '''

31 def join_(self, *args):

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

33

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

35

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

37 result re-callable.

38 '''

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

40

41 __call__ = join_

42

43

44 class _Prefix(Str_):

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

46 '''

47 def __call__(self, *args):

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

49 '''

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

51

52

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

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

55 '''

56 def __call__(self, version=None):

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

58 '''

59 if not version:

60 from sys import version

61 return _SPACE_(self, version.split(None, 1)[0])

62

63

64 class _Range(str):

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

66 '''

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

68 prec=0, sep=_COMMASPACE_):

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

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

71 '''

72 from pygeodesy.streprs import Fmt

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

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

75 if lopen:

76 r = Fmt.PAREN(r) if ropen else Fmt.LOPEN(r)

77 else:

78 r = Fmt.ROPEN(r) if ropen else Fmt.SQUARE(r)

79 return r

80

81

82 class _Slicer(str):

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

84 '''

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

86 if name.startswith(_till_):

87 i = self.find(name[len(_till_):])

88 if 0 < i < len(self):

89 return _Slicer(self[:i + 1])

90 elif name.startswith(_from_):

91 i = self.find(name[len(_from_):])

92 if 0 < (i + 1) < len(self):

93 return _Slicer(self[i:])

94 else:

95 return getattr(str, name)

96 return self

97

98

99 class MISSING(object):

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

101 '''

102 def toRepr(self, **unused):

103 return self.__class__.__name__

104

105 __repr__ = toRepr

106 __str__ = toRepr

107 toStr = toRepr

108

109 MISSING = MISSING() # PYCHOK singleton

110 MISSING.__name__ = str(MISSING)

111

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

113

114# __DUNDER__-style names would get mangled in classes

115_0_ = '0' # PYCHOK 'zero'

116_0to9_ = '0123456789' # PYCHOK OK

117_1_ = '1' # PYCHOK OK

118_2_ = '2' # PYCHOK OK

119_3_ = '3' # PYCHOK OK

120_4_ = '4' # PYCHOK OK

121_a_ = 'a' # PYCHOK OK

122_A_ = 'A' # PYCHOK OK

123_a12_ = 'a12' # PYCHOK OK

124_area_ = 'area' # PYCHOK OK

125_Airy1830_ = 'Airy1830' # PYCHOK OK

126_AiryModified_ = 'AiryModified' # PYCHOK OK

127_ambiguous_ = 'ambiguous' # PYCHOK OK

128_AMPERSAND_ = Str_('&') # PYCHOK OK

129_an_ = 'an' # PYCHOK OK

130_and_ = 'and' # PYCHOK OK

131# _AND_ = _AMPERSAND_ # PYCHOK OK

132_angle_ = 'angle' # PYCHOK OK

133_antipodal_ = 'antipodal' # PYCHOK OK

134_areaOf_ = 'areaOf' # PYCHOK OK

135_arg_ = 'arg' # PYCHOK OK

136_at_ = 'at' # PYCHOK OK

137_AT_ = Str_('@') # PYCHOK OK

138_AtoZnoIO_ = _Slicer('ABCDEFGHJKLMNPQRSTUVWXYZ') # PYCHOK in C{gars}, C{mgrs} and C{wgrs}

139_attribute_ = 'attribute' # PYCHOK OK

140_azi1_ = 'azi1' # PYCHOK OK

141_azi12_ = 'azi12' # PYCHOK OK

142_azi2_ = 'azi2' # PYCHOK OK

143_azimuth_ = 'azimuth' # PYCHOK OK

144_b_ = 'b' # PYCHOK OK

145_B_ = 'B' # PYCHOK OK

146_BACKSLASH_ = Str_('\\') # PYCHOK OK

147_band_ = 'band' # PYCHOK OK

148_BANG_ = Str_('!') # PYCHOK OK

149_BAR_ = Str_('|') # PYCHOK OK

150_bearing_ = 'bearing' # PYCHOK OK

151_Bessel1841_ = 'Bessel1841' # PYCHOK OK

152_beta_ = 'beta' # PYCHOK OK

153_by_ = 'by' # PYCHOK OK

154_c_ = 'c' # PYCHOK OK

155_C_ = 'C' # PYCHOK OK

156_cartesian_ = 'cartesian' # PYCHOK OK

157_center_ = 'center' # PYCHOK OK

158# _CIRCUMFLEX_ = '^' # PYCHOK OK

159_Clarke1866_ = 'Clarke1866' # PYCHOK OK

160_Clarke1880IGN_ = 'Clarke1880IGN' # PYCHOK OK

161_clip_ = 'clip' # PYCHOK OK

162_clipid_ = 'clipid' # PYCHOK OK

163_coincident_ = 'coincident' # PYCHOK OK

164_colinear_ = 'colinear' # PYCHOK OK

165_COLON_ = Str_(':') # PYCHOK OK

166_COLONSPACE_ = Str_(': ') # PYCHOK OK

167_COMMA_ = Str_(',') # PYCHOK OK

168_COMMASPACE_ = Str_(_COMMASPACE_) # PYCHOK OK

169_composite_ = 'composite' # PYCHOK OK

170_concentric_ = 'concentric' # PYCHOK OK

171_convergence_ = _Prefix('convergence') # PYCHOK OK

172_conversion_ = 'conversion' # PYCHOK OK

173_convex_ = 'convex' # PYCHOK OK

174_cubic_ = 'cubic' # PYCHOK OK

175_d_ = 'd' # PYCHOK OK

176_D_ = 'D' # PYCHOK OK

177_DASH_ = Str_('-') # PYCHOK == _MINUS_

178_datum_ = 'datum' # PYCHOK OK

179_decode3_ = 'decode3' # PYCHOK OK

180_deg_ = 'deg' # PYCHOK OK

181_degrees_ = 'degrees' # PYCHOK OK

182_degrees2_ = 'degrees2' # PYCHOK SQUARED

183_DEPRECATED_ = 'DEPRECATED' # PYCHOK OK

184_DEQUALSPACED_ = Str_(' == ') # PYCHOK OK

185_distance_ = 'distance' # PYCHOK OK

186_distanceTo_ = 'distanceTo' # PYCHOK OK

187_distant_ = _Prefix('distant') # PYCHOK OK

188_doesn_t_exist_ = "doesn't exist" # PYCHOK OK

189_DOT_ = Str_('.') # PYCHOK OK

190_down_ = 'down' # PYCHOK OK

191_e_ = 'e' # PYCHOK OK

192_E_ = 'E' # PYCHOK OK

193_east_ = 'east' # PYCHOK OK

194_easting_ = 'easting' # PYCHOK OK

195_ecef_ = 'ecef' # PYCHOK OK

196_edge_ = 'edge' # PYCHOK OK

197_elevation_ = 'elevation' # PYCHOK OK

198_ELLIPSIS_ = Str_('...') # PYCHOK OK

199_ELLIPSIS4_ = Str_('....') # PYCHOK OK

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

201_ellipsoid_ = 'ellipsoid' # PYCHOK OK

202_ellipsoidal_ = 'ellipsoidal' # PYCHOK OK

203_enabled_ = 'enabled' # PYCHOK OK

204_encode_ = 'encode' # PYCHOK OK

205_end_ = 'end' # PYCHOK OK

206_epoch_ = 'epoch' # PYCHOK OK

207_EQUAL_ = Str_('=') # PYCHOK OK

208_EQUALSPACED_ = Str_(' = ') # PYCHOK OK

209_Error_ = 'Error' # PYCHOK OK

210_exceed_PI_radians_ = 'exceed PI radians' # PYCHOK OK

211_exceeds_ = _Prefix('exceeds') # PYCHOK OK

212# _EXCLAMATION_ = _BANG_ # PYCHOK OK

213_exists_ = 'exists' # PYCHOK OK

214_f_ = 'f' # PYCHOK OK

215_F_ = 'F' # PYCHOK OK

216_feet_ = 'feet' # PYCHOK OK

217_few_ = 'few' # PYCHOK OK

218_fi_ = 'fi' # PYCHOK OK

219_finite_ = 'finite' # PYCHOK OK

220_from_ = 'from' # PYCHOK OK

221_g_ = 'g' # PYCHOK OK

222_gamma_ = 'gamma' # PYCHOK OK

223_GRS80_ = 'GRS80' # PYCHOK OK

224_h_ = 'h' # PYCHOK OK

225_H_ = 'H' # PYCHOK OK

226_height_ = 'height' # PYCHOK OK

227_hemipole_ = 'hemipole' # PYCHOK OK

228_i_ = 'i' # PYCHOK OK

229_iadd_ = '+=' # PYCHOK OK

230_immutable_ = 'immutable' # PYCHOK OK

231_in_ = 'in' # PYCHOK OK

232_incompatible_ = 'incompatible' # PYCHOK OK

233_INF_ = 'INF' # PYCHOK OK

234_infinite_ = 'infinite' # PYCHOK _not_finite_

235_initial_ = 'initial' # PYCHOK OK

236_inside_ = 'inside' # PYCHOK OK

237_intersection_ = 'intersection' # PYCHOK OK

238_Intl1924_ = 'Intl1924' # PYCHOK OK

239_invalid_ = 'invalid' # PYCHOK OK

240_isclockwise_ = 'isclockwise' # PYCHOK OK

241_ispolar_ = 'ispolar' # PYCHOK OK

242_j_ = 'j' # PYCHOK OK

243_k0_ = 'k0' # PYCHOK OK

244_kind_ = 'kind' # PYCHOK OK

245_knots_ = 'knots' # PYCHOK OK

246_Krassovski1940_ = 'Krassovski1940' # PYCHOK OK

247_Krassowsky1940_ = 'Krassowsky1940' # PYCHOK OK

248_LANGLE_ = '<' # PYCHOK OK

249_lam_ = 'lam' # PYCHOK OK

250_lat_ = 'lat' # PYCHOK OK

251_lat0_ = 'lat0' # PYCHOK OK

252_lat1_ = 'lat1' # PYCHOK OK

253_lat2_ = 'lat2' # PYCHOK OK

254_latlon_ = 'latlon' # PYCHOK OK

255_LatLon_ = 'LatLon' # PYCHOK OK

256_LCURLY_ = '{' # PYCHOK LBRACE

257_len_ = 'len' # PYCHOK OK

258_line_ = 'line' # PYCHOK OK

259_linear_ = 'linear' # PYCHOK OK

260_LPAREN_ = '(' # PYCHOK OK

261_lon_ = 'lon' # PYCHOK OK

262_lon0_ = 'lon0' # PYCHOK OK

263_lon1_ = 'lon1' # PYCHOK OK

264_lon2_ = 'lon2' # PYCHOK OK

265_LSQUARE_ = '[' # PYCHOK LBRACK

266_ltp_ = 'ltp' # PYCHOK OK

267_m_ = 'm' # PYCHOK OK

268_M_ = 'M' # PYCHOK OK

269_m12_ = 'm12' # PYCHOK OK

270_M12_ = 'M12' # PYCHOK OK

271_M21_ = 'M21' # PYCHOK OK

272_MANT_DIG_ = 'MANT_DIG' # PYCHOK OK

273_MAX_ = 'MAX' # PYCHOK OK

274_mean_ = 'mean' # PYCHOK OK

275_meanOf_ = 'meanOf' # PYCHOK OK

276_meridional_ = 'meridional' # PYCHOK OK

277_meter_ = 'meter' # PYCHOK OK

278_meter2_ = 'meter2' # PYCHOK SQUARED

279_MGRS_ = 'MGRS' # PYCHOK OK

280_MIN_ = 'MIN' # PYCHOK OK

281_MINUS_ = _DASH_ # PYCHOK OK

282_module_ = 'module' # PYCHOK OK

283_n_ = 'n' # PYCHOK OK

284_N_ = 'N' # PYCHOK OK

285_n_a_ = 'n/a' # PYCHOK OK

286_N_A_ = 'N/A' # PYCHOK OK

287_NAD27_ = 'NAD27' # PYCHOK OK

288_NAD83_ = 'NAD83' # PYCHOK OK

289_name_ = 'name' # PYCHOK OK

290_NAN_ = 'NAN' # PYCHOK OK

291_near_ = _Dash('near') # PYCHOK OK

292_nearestOn2_ = 'nearestOn2' # PYCHOK OK

293_negative_ = 'negative' # PYCHOK OK

294_NL_ = Str_('\n') # PYCHOK OK

295_NLATvar_ = Str_(_NL_ + '@var ') # PYCHOK OK

296_NLHASH_ = Str_(_NL_ + '# ') # PYCHOK OK

297# _NLNL_ = _DNL_ # PYCHOK OK

298_NN_ = 'NN' # PYCHOK OK

299_no_ = _Prefix('no') # PYCHOK OK

300_north_ = 'north' # PYCHOK OK

301_northing_ = 'northing' # PYCHOK OK

302_NorthPole_ = 'NorthPole' # PYCHOK OK

303_not_ = _Prefix('not') # PYCHOK OK

304_NOTEQUAL_ = _BANG_ + _EQUAL_ # PYCHOK OK

305_not_finite_ = 'not finite' # PYCHOK _not_(_finite_), _infinite_

306_not_scalar_ = 'not scalar' # PYCHOK _not_(_scalar_)

307_NTF_ = 'NTF' # PYCHOK OK

308_null_ = 'null' # PYCHOK OK

309_number_ = 'number' # PYCHOK OK

310_numpy_ = 'numpy' # PYCHOK OK

311_Nv00_ = 'Nv00' # PYCHOK OK

312_on_ = 'on' # PYCHOK OK

313_opposite_ = 'opposite' # PYCHOK OK

314_or_ = 'or' # PYCHOK OK

315_other_ = 'other' # PYCHOK OK

316_outside_ = 'outside' # PYCHOK OK

317_overlap_ = 'overlap' # PYCHOK OK

318_PERCENT_ = '%' # PYCHOK OK

319_PERCENTDOTSTAR_ = '%.*' # PYCHOK _DOT_(_PERCENT_, _STAR_)

320_phi_ = 'phi' # PYCHOK OK

321_PLUS_ = Str_('+') # PYCHOK OK

322_PLUSMINUS_ = _PLUS_ + _MINUS_ # PYCHOK OK

323_point_ = 'point' # PYCHOK OK

324_points_ = 'points' # PYCHOK OK

325_pole_ = 'pole' # PYCHOK OK

326_precision_ = 'precision' # PYCHOK OK

327_prime_vertical_ = 'prime_vertical' # PYCHOK OK

328_pygeodesy_abspath_ = 'pygeodesy_abspath' # PYCHOK OK

329_PyPy__ = 'PyPy ' # PYCHOK + _SPACE_

330_Python_ = _Python_('Python') # PYCHOK singleton

331_python_ = 'python' # PYCHOK OK

332_QUOTE1_ = "'" # PYCHOK OK

333_QUOTE2_ = '"' # PYCHOK OK

334# _QUOTE3_ = "'''" # PYCHOK OK

335# _QUOTE6_ = '"""' # PYCHOK OK

336_R_ = 'R' # PYCHOK OK

337_radians_ = 'radians' # PYCHOK OK

338_radians2_ = 'radians2' # PYCHOK SQUARED

339_radius_ = 'radius' # PYCHOK OK

340_radius1_ = 'radius1' # PYCHOK OK

341_radius2_ = 'radius2' # PYCHOK OK

342_range_ = _Range('range') # PYCHOK OK

343_RANGLE_ = '>' # PYCHOK OK

344_RCURLY_ = '}' # PYCHOK RBRACE

345_reciprocal_ = 'reciprocal' # PYCHOK OK

346_reframe_ = 'reframe' # PYCHOK OK

347_resolution_ = 'resolution' # PYCHOK OK

348_rIn_ = 'rIn' # PYCHOK OK

349_RPAREN_ = ')' # PYCHOK OK

350_RSQUARE_ = ']' # PYCHOK RBRACK

351_s_ = 's' # PYCHOK OK

352_S_ = 'S' # PYCHOK OK

353_s12_ = 's12' # PYCHOK OK

354_S12_ = 'S12' # PYCHOK OK

355_scalar_ = 'scalar' # PYCHOK OK

356_scale_ = 'scale' # PYCHOK OK

357_scale0_ = 'scale0' # PYCHOK OK

358_scipy_ = 'scipy' # PYCHOK OK

359_semi_circular_ = 'semi-circular' # PYCHOK OK

360_sep_ = 'sep' # PYCHOK OK

361_sets_ = 'sets' # PYCHOK OK

362_singular_ = 'singular' # PYCHOK OK

363_SLASH_ = Str_('/') # PYCHOK OK

364_small_ = 'small' # PYCHOK OK

365_Sphere_ = 'Sphere' # PYCHOK OK

366_spherical_ = 'spherical' # PYCHOK OK

367_SouthPole_ = 'SouthPole' # PYCHOK OK

368_SPACE_ = Str_(' ') # PYCHOK OK

369_specified_ = 'specified' # PYCHOK OK

370_STAR_ = Str_('*') # PYCHOK OK

371_start_ = 'start' # PYCHOK OK

372_std_ = 'std' # PYCHOK OK

373_stdev_ = 'stdev' # PYCHOK OK

374_supported_ = 'supported' # PYCHOK OK

375_sx_ = 'sx' # PYCHOK OK

376_sy_ = 'sy' # PYCHOK OK

377_sz_ = 'sz' # PYCHOK OK

378_tbd_ = 'tbd' # PYCHOK OK

379_TILDE_ = '~' # PYCHOK OK

380_till_ = 'till' # PYCHOK OK

381_to_ = 'to' # PYCHOK OK

382_tolerance_ = _Prefix('tolerance') # PYCHOK OK

383_too_ = _Prefix('too') # PYCHOK OK

384_transform_ = 'transform' # PYCHOK OK

385_tx_ = 'tx' # PYCHOK OK

386_ty_ = 'ty' # PYCHOK OK

387_tz_ = 'tz' # PYCHOK OK

388_UNDER_ = Str_('_') # PYCHOK OK

389

390 def _UNDER(name): # PYCHOK in .datums, .rhumbx, .ups, .utm, .utmupsBase

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

392 '''

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

394

395_units_ = 'units' # PYCHOK OK

396_up_ = 'up' # PYCHOK OK

397_UPS_ = 'UPS' # PYCHOK OK

398_utf_8_ = 'utf-8' # PYCHOK OK

399_UTM_ = 'UTM' # PYCHOK OK

400_V_ = 'V' # PYCHOK OK

401_valid_ = 'valid' # PYCHOK OK

402_value_ = 'value' # PYCHOK OK

403_version_ = 'version' # PYCHOK OK

404_vs_ = 'vs' # PYCHOK OK

405_W_ = 'W' # PYCHOK OK

406_WGS72_ = 'WGS72' # PYCHOK OK

407_WGS84_ = 'WGS84' # PYCHOK OK

408_width_ = 'width' # PYCHOK OK

409_with_ = 'with' # PYCHOK OK

410_x_ = 'x' # PYCHOK OK

411_X_ = 'X' # PYCHOK OK

412_xyz_ = 'xyz' # PYCHOK OK

413_y_ = 'y' # PYCHOK OK

414_Y_ = 'Y' # PYCHOK OK

415_z_ = 'z' # PYCHOK OK

416_Z_ = 'Z' # PYCHOK OK

417_zone_ = 'zone' # PYCHOK OK

418

419_EW_ = _E_ + _W_ # PYCHOK common cardinals

420_NE_ = _N_ + _E_ # PYCHOK positive ones

421_NS_ = _N_ + _S_ # PYCHOK OK

422_NSEW_ = _NS_ + _EW_ # PYCHOK OK

423_NW_ = _N_ + _W_ # PYCHOK OK

424_SE_ = _S_ + _E_ # PYCHOK OK

425_SW_ = _S_ + _W_ # PYCHOK negative ones

426# _NESW_ = _NE_ + _SW_ # PYCHOK clockwise

427

428_DDOT_ = Str_(_DOT_ * 2) # PYCHOK OK

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

430_DNL_ = Str_(_NL_ * 2) # PYCHOK OK

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

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

433_DUNDER_ = Str_(_UNDER_ * 2) # PYCHOK OK

434

435_LR_PAIRS = {_LANGLE_: _RANGLE_,

436 _LCURLY_: _RCURLY_,

437 _LPAREN_: _RPAREN_,

438 _LSQUARE_: _RSQUARE_} # PYCHOK OK

439

440

441 def _dunder_nameof(inst, *dflt):

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

443 '''

444 try:

445 return inst.__name__

446 except AttributeError:

447 pass

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

449

450

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

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

453 '''

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

455 strs = NN(quote, strs, quote)

456 return strs

457

458

459 def _load_lib(name):

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

461 '''

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

463 # system libraries, instead it installs the library after a

464 # low-level dlopen(name) call where name is the library base

465 # name. As a result, ctypes.util.find_library can not find

466 # any library not previously dlopen'ed.

467 from ctypes import CDLL

468 from ctypes.util import find_library

469 from sys import platform

470

471 ns = find_library(name), name

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

473 from ctypes import _dlopen

474 from os.path import join

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

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

477 _DOT_(name, 'framework'), name))

478 else: # non-macOS

479 def _dlopen(unused):

480 return True

481

482 for n in ns:

483 try:

484 if n and _dlopen(n): # handle

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

486 if lib._name: # has a qualified name

487 return lib

488 except (AttributeError, OSError):

489 pass

490

491 return None # raise OSError

492

493

494 def machine():

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

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

497

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

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

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

501 '''

502 return _platform2()[1]

503

504

505 def _platform2(sep=NN):

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

507 '''

508 global _pl2List

509 if _pl2List is None:

510 import platform

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

512 m = m.replace(_COMMA_, _UNDER_)

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

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

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

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

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

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

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

520 _pl2List = [platform.architecture()[0], # bits

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

522 return sep.join(_pl2List) if sep else _pl2List # 2-list()

523

524

525 def _pythonarchine(sep=NN): # in test/base.py versions

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

527 '''

528 global _Py3List

529 if _Py3List is None:

530 from sys import version # XXX shadows?

531 _Py3List = [_Python_(version)] + _platform2()

532 if _PyPy__ in version: # see test/base.py

533 v = version.split(_PyPy__)[1].split(None, 1)[0]

534 _Py3List.insert(0, NN(_PyPy__, v))

535 return sep.join(_Py3List) if sep else _Py3List # 3- or 4-list

536

537

538 def _splituple(strs, *sep_splits): # in .basics, .mgrs

539 '''(INTERNAL) Split a C{comma}- or C{whitespace}-separated

540 string into a C{tuple} of stripped strings.

541 '''

542 t = (strs.split(*sep_splits) if sep_splits else

543 strs.replace(_COMMA_, _SPACE_).split()) if strs else ()

544 return tuple(s.strip() for s in t if s)

545

546

547 def _sysctl_uint(name):

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

549 '''

550 libc = _load_lib('libc')

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

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

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

554 u = c_uint(0)

555 z = c_size_t(sizeof(u))

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

557 else: # could find or load 'libc'

558 r = -2

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

560

561

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

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

564 '''

565 import os, sys # PYCHOK imports

566 p = NN(_python_, sys.version_info[0])

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

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

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

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

571 m = _DOT_(m, b)

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

573

574

575 def _version2(version, n=2):

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

577 '''

578 def _int(*vs):

579 for v in vs:

580 try:

581 yield int(v)

582 except (TypeError, ValueError):

583 pass

584

585 t = tuple(_int(*_splituple(version, _DOT_, 2))) + (0,) * n

586 return t[:n]

587

588

589__all__ = (_NN_, # not MISSING!

590 Str_.__name__, # classes

591 machine.__name__) # in .lazily

592__version__ = '23.04.11'

593

594 if __name__ == '__main__':

595

596 from pygeodesy.errors import itemsorted

597 from pygeodesy.lazily import printf

598

599 t = b = 0

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

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

602 not n.startswith(_DUNDER_):

603 t += 1

604 b += len(v)

605 m = n[1:-1]

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

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

608 n = len(locals())

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

610

611# **) MIT License

612#

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

614#

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

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

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

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

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

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

621#

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

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

624#

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

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

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

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

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

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

631# OTHER DEALINGS IN THE SOFTWARE.