# Coverage for pygeodesy/streprs.py : 97%

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''' from pygeodesy.basics import isint, isscalar from pygeodesy.errors import _AttributeError, _IsnotError, _TypeError, \ _ValueError from pygeodesy.interns import NN, MISSING, _BAR_, _COMMASPACE_, _DOT_, _E_, \ _EQUAL_, _H_, _invalid_, _N_, _name_, _not_, \ _PERCENT_, _OKd_, _scalar_, _SPACE_, _STAR_, \ _UNDER_, _0_, _0_0, _0_001, _0_01, _0_1, _1_0 from pygeodesy.interns import _convergence_, _distant_, _e_, _EPS0_, \ _EQUALSPACED_, _exceeds_, _f_, _F_, _g_ # PYCHOK used! from pygeodesy.lazily import _ALL_LAZY, _ALL_MODS as _MODS __all__ = _ALL_LAZY.streprs __version__ = '22.03.04' _E_4_E0 = (1e-4, _0_001, _0_01, _0_1, _1_0) def _pct(fmt): '''(INTERNAL) Prefix C{%} if needed. ''' return fmt if _PERCENT_ in fmt else NN(_PERCENT_, fmt) def _0wd(*w_i): # in .osgr, .wgrs '''(INTERNAL) Int formatter'. ''' return '%0*d' % w_i def _0wpF(*w_p_f): # in .dms, .osgr '''(INTERNAL) Float deg, min, sec formatter'. ''' return '%0*.*f' % w_p_f # XXX was F class _Fmt(str): # in .streprs '''(INTERNAL) Callable formatting. ''' name = NN def __call__(self, *name_value_, **name_value): '''Format a C{name=value} pair or C{name, value} pair or just a single C{value}. ''' for n, v in name_value.items(): break else: if len(name_value_) > 1: n, v = name_value_[:2] elif name_value_: n, v = NN, name_value_[0] else: n, v = NN, MISSING t = str.__mod__(self, v) return NN(n, t) if n else t # def __mod__(self, arg, **unused): # '''Regular C{%} operator. # ''' # return str.__mod__(self, arg) class Fstr(str): '''(INTERNAL) C{float} format. ''' name = NN def __call__(self, flt, prec=None, ints=False): '''Format the B{C{flt}} like function L{fstr}. ''' # see also function C{fstr} if isscalar case below t = str.__mod__(_pct(self), flt) if prec is None else next( _streprs(prec, (flt,), self, ints, True, None)) return t def __mod__(self, arg, **unused): '''Regular C{%} operator. @arg arg: A C{scalar} value to be formatted (either the C{scalar}, or a 1-tuple C{(scalar,)}, or 2-tuple C{(prec, scalar)}. @raise TypeError: Non-scalar B{C{arg}} value. @raise ValueError: Invalid B{C{arg}}. ''' def _error(arg): n = _DOT_(Fstr.__name__, self.name or self) return _SPACE_(n, _PERCENT_, repr(arg)) prec = 6 # default std %f and %F if isinstance(arg, (tuple, list)): n = len(arg) if n == 1: arg = arg[0] elif n == 2: prec, arg = arg else: raise _ValueError(_error(arg)) if not isscalar(arg): raise _TypeError(_error(arg)) return self(arg, prec=prec) class Fmt(object): '''Formatting options. ''' ANGLE = _Fmt('<%s>') COLON = _Fmt(':%s') # COLONSPACE = _Fmt(': %s') # == _COLONSPACE_(n, v) # COMMASPACE = _Fmt(', %s') # == _COMMASPACE_(n, v) convergence = _Fmt(_convergence_('(%g)')) CURLY = _Fmt('{%s}') # BRACES distant = _Fmt(_distant_('(%.3g)')) DOT = _Fmt('.%s') # == NN(_DOT_, n) e = Fstr(_e_) E = Fstr(_E_) EPS0 = _Fmt(_SPACE_(_EPS0_, '(%g)')) EQUAL = _Fmt(_EQUAL_(NN, '%s')) EQUALSPACED = _Fmt(_EQUALSPACED_(NN, '%s')) exceeds_eps = _Fmt(_exceeds_('eps', '(%g)')) f = Fstr(_f_) F = Fstr(_F_) g = Fstr(_g_) G = Fstr('G') h = Fstr('%+.*f') # height, .streprs.hstr limit = _Fmt(' %s limit') # .units LOPEN = _Fmt('(%s]') # left-open range (L, R] PAREN = _Fmt('(%s)') PARENSPACED = _Fmt(' (%s)') QUOTE2 = _Fmt('"%s"') ROPEN = _Fmt('[%s)') # right-open range [L, R) # SPACE = _Fmt(' %s') # == _SPACE_(n, v) SQUARE = _Fmt('[%s]') # BRACKETS TAG = ANGLE TAGEND = _Fmt('</%s>') zone = _Fmt('%02d') # .epsg, .mgrs, .utmupsBase def __init__(self): for n, a in self.__class__.__dict__.items(): if isinstance(a, (Fstr, _Fmt)): setattr(a, _name_, n) Fmt = Fmt() # PYCHOK singleton Fmt.__name__ = Fmt.__class__.__name__ _DOTSTAR_ = Fmt.DOT(_STAR_) # formats %G and %g drop all trailing zeros and the # decimal point, making the float appear as an int _Gg = (Fmt.G, Fmt.g) _FfEeGg = (Fmt.F, Fmt.f, Fmt.E, Fmt.e) + _Gg # float formats _Fspec_ = NN('[%[<flags>][<width>]', _DOTSTAR_, ']', _BAR_.join(_FfEeGg)) # in testStreprs def _streprs(prec, objs, fmt, ints, force, strepr): '''(INTERNAL) Helper for C{fstr}, C{pairs}, C{reprs} and C{strs} ''' # <https://docs.Python.org/3/library/stdtypes.html#printf-style-string-formatting> if fmt in _FfEeGg: fGg = fmt in _Gg fmt = NN(_PERCENT_, _DOT_, abs(prec), fmt) elif fmt.startswith(_PERCENT_): fGg = False try: # to make sure fmt is valid f = fmt.replace(_DOTSTAR_, Fmt.DOT(abs(prec))) _ = f % (_0_0,) except (TypeError, ValueError): raise _ValueError(fmt=fmt, txt=_not_(repr(_DOTSTAR_))) fmt = f else: raise _ValueError(fmt=fmt, txt=_not_(repr(_Fspec_))) for o in objs: if force or isinstance(o, float): t = fmt % (float(o),) if ints and (isint(o, both=True) or # for ... # corner case testLcc lon0=-96.0 t.rstrip(_0_).endswith(_DOT_)): t = t.split(_DOT_)[0] elif prec > 1: t = fstrzs(t, ap1z=fGg) elif strepr: t = strepr(o) else: raise _IsnotError(_scalar_, floats=o) yield t def anstr(name, OKd=_OKd_, sub=_UNDER_): '''Make a valid name of alphanumeric and OKd characters. @arg name: The original name (C{str}). @kwarg OKd: Other acceptable characters (C{str}). @kwarg sub: Substitute for invalid charactes (C{str}). @return: The modified name (C{str}). @note: Leading and trailing whitespace characters are removed, intermediate whitespace characters are coalesced and substituted. ''' s = n = str(name).strip() for c in n: if not (c.isalnum() or c in OKd or c in sub): s = s.replace(c, _SPACE_) return sub.join(s.strip().split()) def attrs(inst, *names, **Nones_True_pairs_kwds): # prec=6, fmt=Fmt.F, ints=False, Nones=True, sep=_EQUAL_ '''Get instance attributes as I{name=value} strings, with C{float}s formatted by function L{fstr}. @arg inst: The instance (any C{type}). @arg names: The attribute names (C{str}s). @kwarg Nones_True_pairs_kwds: Keyword argument for function L{pairs}, except C{B{Nones}=True} to in-/exclude missing or C{None}-valued attributes. @return: A C{tuple(B{sep}.join(t) for t in zip(B{names}, reprs(values, ...)))} of C{str}s. ''' def _items(inst, names, Nones): for n in names: v = getattr(inst, n, None) if Nones or v is not None: yield n, v def _Nones_kwds(Nones=True, **kwds): return Nones, kwds Nones, kwds = _Nones_kwds(**Nones_True_pairs_kwds) return pairs(_items(inst, names, Nones), **kwds) def enstr2(easting, northing, prec, *extras): '''Return easting, northing string representations. @arg easting: Easting from false easting (C{meter}). @arg northing: Northing from from false northing (C{meter}). @arg prec: Precision in number of digits (C{int}, 2..10). @arg extras: Optional leading items (C{str}s). @return: B{C{extras}} + 2-Tuple C{(eastingStr, northingStr)}. @raise ValueError: Invalid B{C{prec}}. ''' try: # like .dms.compassPoint w = int(prec) // 2 if 0 < w <= len(_E_4_E0): s = _E_4_E0[w - 1] # 10**(5 - w) return extras + (_0wd(w, int(easting * s)), _0wd(w, int(northing * s))) t = _invalid_ except (TypeError, ValueError) as x: t = str(x) raise _ValueError(easting=easting, northing=northing, prec=prec, txt=t) def fstr(floats, prec=6, fmt=Fmt.F, ints=False, sep=_COMMASPACE_, strepr=None): '''Convert one or more floats to string, optionally stripped of trailing zero decimals. @arg floats: Single or a list, sequence, tuple, etc. (C{scalar}s). @kwarg prec: The C{float} precision, number of decimal digits (0..9). Trailing zero decimals are stripped if B{C{prec}} is positive, but kept for negative B{C{prec}} values. In addition, trailing decimal zeros are stripped for U{alternate, form '#'<https://docs.Python.org/3/library/stdtypes.html #printf-style-string-formatting>}. @kwarg fmt: Optional, C{float} format (C{str}). @kwarg ints: Optionally, remove the decimal dot for C{int} values (C{bool}). @kwarg sep: Separator joining the B{C{floats}} (C{str}). @kwarg strepr: Optional callable to format non-C{floats} (typically C{repr}, C{str}) or C{None} to raise a TypeError. @return: The C{sep.join(strs(floats, ...)} joined (C{str}) or single C{strs((floats,), ...)} (C{str}) if B{C{floats}} is C{scalar}. ''' if isscalar(floats): # see Fstr.__call__ above return next(_streprs(prec, (floats,), fmt, ints, True, strepr)) else: return sep.join(_streprs(prec, floats, fmt, ints, True, strepr)) def _fstrENH2(inst, prec, m): # in .css, .lcc, .utmupsBase # (INTERNAL) For C{Css.} and C{Lcc.} C{toRepr} and C{toStr} and C{UtmUpsBase._toStr}. t = inst.easting, inst.northing t = tuple(_streprs(prec, t, Fmt.F, False, True, None)) T = _E_, _N_ if m is not None and abs(inst.height): # abs(self.height) > EPS t += hstr(inst.height, prec=-2, m=m), T += _H_, return t, T def _fstrLL0(inst, prec, toRepr): # in .azimuthal, .css # (INTERNAL) For C{_AzimuthalBase.} and C{CassiniSoldner.} C{toStr} and C{toRepr}. t = tuple(_streprs(prec, inst.latlon0, Fmt.F, False, True, None)) if toRepr: n = inst.name if n: t += Fmt.EQUAL(_name_, repr(n)), t = Fmt.PAREN(inst.classname, _COMMASPACE_.join(t)) return t def fstrzs(efstr, ap1z=False): '''Strip trailing zero decimals from a C{float} string. @arg efstr: Float with or without exponent (C{str}). @kwarg ap1z: Append the decimal point and one zero decimal if the B{C{efstr}} is all digits (C{bool}). @return: Float (C{str}). ''' s = efstr.find(_DOT_) if s >= 0: e = efstr.rfind(Fmt.e) if e < 0: e = efstr.rfind(Fmt.E) if e < 0: e = len(efstr) s += 2 # keep 1st _DOT_ + _0_ if s < e and efstr[e-1] == _0_: efstr = NN(efstr[:s], efstr[s:e].rstrip(_0_), efstr[e:]) elif ap1z: # %.G and %.g formats may drop the decimal # point and all trailing zeros, ... if efstr.isdigit(): efstr += _DOT_ + _0_ # ... append or ... else: # ... insert one dot and zero e = efstr.rfind(Fmt.e) if e < 0: e = efstr.rfind(Fmt.E) if e > 0: efstr = NN(efstr[:e], _DOT_, _0_, efstr[e:]) return efstr def hstr(height, prec=2, fmt=Fmt.h, ints=False, m=NN): '''Return a string for the height value. @arg height: Height value (C{float}). @kwarg prec: The C{float} precision, number of decimal digits (0..9). Trailing zero decimals are stripped if B{C{prec}} is positive, but kept for negative B{C{prec}} values. @kwarg fmt: Optional, C{float} format (C{str}). @kwarg ints: Optionally, remove the decimal dot for C{int} values (C{bool}). @kwarg m: Optional unit of the height (C{str}). ''' h = next(_streprs(prec, (height,), fmt, ints, True, None)) return NN(h, str(m)) if m else h def instr(inst, *args, **kwds): '''Return the string representation of an instantiation. @arg inst: The instance (any C{type}). @arg args: Optional positional arguments. @kwarg kwds: Optional keyword arguments. @return: Representation (C{str}). ''' return unstr(_MODS.named.classname(inst), *args, **kwds) def pairs(items, prec=6, fmt=Fmt.F, ints=False, sep=_EQUAL_): '''Convert items to I{name=value} strings, with C{float}s handled like L{fstr}. @arg items: Name-value pairs (C{dict} or 2-{tuple}s of any C{type}s). @kwarg prec: The C{float} precision, number of decimal digits (0..9). Trailing zero decimals are stripped if B{C{prec}} is positive, but kept for negative B{C{prec}} values. @kwarg fmt: Optional, C{float} format (C{str}). @kwarg ints: Optionally, remove the decimal dot for C{int} values (C{bool}). @kwarg sep: Separator joining I{names} and I{values} (C{str}). @return: A C{tuple(B{sep}.join(t) for t in B{items}))} of C{str}s. ''' try: if isinstance(items, dict): items = sorted(items.items()) elif not isinstance(items, (list, tuple)): items = tuple(items) # can't unzip empty items tuple, list, etc. n, v = zip(*items) if items else ((), ()) except (TypeError, ValueError): raise _IsnotError(dict.__name__, '2-tuples', items=items) v = _streprs(prec, v, fmt, ints, False, repr) return tuple(sep.join(t) for t in zip(map(str, n), v)) def reprs(objs, prec=6, fmt=Fmt.F, ints=False): '''Convert objects to C{repr} strings, with C{float}s handled like L{fstr}. @arg objs: List, sequence, tuple, etc. (any C{type}s). @kwarg prec: The C{float} precision, number of decimal digits (0..9). Trailing zero decimals are stripped if B{C{prec}} is positive, but kept for negative B{C{prec}} values. @kwarg fmt: Optional, C{float} format (C{str}). @kwarg ints: Optionally, remove the decimal dot for C{int} values (C{bool}). @return: A C{tuple(map(fstr|repr, objs))} of C{str}s. ''' return tuple(_streprs(prec, objs, fmt, ints, False, repr)) if objs else () def strs(objs, prec=6, fmt=Fmt.F, ints=False): '''Convert objects to C{str} strings, with C{float}s handled like L{fstr}. @arg objs: List, sequence, tuple, etc. (any C{type}s). @kwarg prec: The C{float} precision, number of decimal digits (0..9). Trailing zero decimals are stripped if B{C{prec}} is positive, but kept for negative B{C{prec}} values. @kwarg fmt: Optional, C{float} format (C{str}). @kwarg ints: Optionally, remove the decimal dot for C{int} values (C{bool}). @return: A C{tuple(map(fstr|str, objs))} of C{str}s. ''' return tuple(_streprs(prec, objs, fmt, ints, False, str)) if objs else () def unstr(named, *args, **kwds): '''Return the string representation of an invokation. @arg named: Function, method or class name (C{str}). @arg args: Optional positional arguments. @kwarg kwds: Optional keyword arguments. @return: Representation (C{str}). ''' t = reprs(args, fmt=Fmt.g) + pairs(sorted(kwds.items())) return Fmt.PAREN(named, _COMMASPACE_.join(t)) def _boolkwds(inst, **name_value_pairs): # in .frechet, .hausdorff, .heights '''(INTERNAL) Set applicable C{bool} properties/attributes. ''' for n, v in name_value_pairs.items(): b = getattr(inst, n, None) if b is None: # invalid bool attr t = _SPACE_(_EQUAL_(n, repr(v)), 'for', inst.__class__.__name__) # XXX .classname raise _AttributeError(t, txt=_not_('applicable')) if v in (False, True) and v != b: setattr(inst, NN(_UNDER_, n), v) def _xattrs(insto, other, *attrs): '''(INTERNAL) Copy attribute values from B{C{other}} to B{C{insto}}. @arg insto: Object to copy attribute values to (any C{type}). @arg other: Object to copy attribute values from (any C{type}). @arg attrs: One or more attribute names (C{str}s). @return: Object B{C{insto}}, updated. @raise AttributeError: An B{C{attrs}} doesn't exist or is not settable. ''' def _getattr(o, a): if hasattr(o, a): return getattr(o, a) try: n = o._DOT_(a) except AttributeError: n = Fmt.DOT(a) raise _AttributeError(o, name=n) for a in attrs: s = _getattr(other, a) g = _getattr(insto, a) if (g is None and s is not None) or g != s: setattr(insto, a, s) # not settable? return insto def _xzipairs(lefts, rights, sep=_COMMASPACE_, fmt=NN, pair_fmt=Fmt.COLON): '''(INTERNAL) Zip C{lefts} and C{rights} into a C{str}. ''' t = sep.join(pair_fmt(*t) for t in zip(lefts, rights)) return (fmt % (t,)) if fmt else t # **) MIT License # # Copyright (C) 2016-2022 -- mrJean1 at Gmail -- All Rights Reserved. # # Permission is hereby granted, free of charge, to any person obtaining a # copy of this software and associated documentation files (the "Software"), # to deal in the Software without restriction, including without limitation # the rights to use, copy, modify, merge, publish, distribute, sublicense, # and/or sell copies of the Software, and to permit persons to whom the # Software is furnished to do so, subject to the following conditions: # # The above copyright notice and this permission notice shall be included # in all copies or substantial portions of the Software. # # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS # OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL # THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR # OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, # ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR # OTHER DEALINGS IN THE SOFTWARE.