Return a string representation of Expr.
(self, parent_precedence=Precedence.NONE,
language=Language.Fortran)
| 274 | return self.tostring() |
| 275 | |
| 276 | def tostring(self, parent_precedence=Precedence.NONE, |
| 277 | language=Language.Fortran): |
| 278 | """Return a string representation of Expr. |
| 279 | """ |
| 280 | if self.op in (Op.INTEGER, Op.REAL): |
| 281 | precedence = (Precedence.SUM if self.data[0] < 0 |
| 282 | else Precedence.ATOM) |
| 283 | r = str(self.data[0]) + (f'_{self.data[1]}' |
| 284 | if self.data[1] != 4 else '') |
| 285 | elif self.op is Op.COMPLEX: |
| 286 | r = ', '.join(item.tostring(Precedence.TUPLE, language=language) |
| 287 | for item in self.data) |
| 288 | r = '(' + r + ')' |
| 289 | precedence = Precedence.ATOM |
| 290 | elif self.op is Op.SYMBOL: |
| 291 | precedence = Precedence.ATOM |
| 292 | r = str(self.data) |
| 293 | elif self.op is Op.STRING: |
| 294 | r = self.data[0] |
| 295 | if self.data[1] != 1: |
| 296 | r = self.data[1] + '_' + r |
| 297 | precedence = Precedence.ATOM |
| 298 | elif self.op is Op.ARRAY: |
| 299 | r = ', '.join(item.tostring(Precedence.TUPLE, language=language) |
| 300 | for item in self.data) |
| 301 | r = '[' + r + ']' |
| 302 | precedence = Precedence.ATOM |
| 303 | elif self.op is Op.TERMS: |
| 304 | terms = [] |
| 305 | for term, coeff in sorted(self.data.items()): |
| 306 | if coeff < 0: |
| 307 | op = ' - ' |
| 308 | coeff = -coeff |
| 309 | else: |
| 310 | op = ' + ' |
| 311 | if coeff == 1: |
| 312 | term = term.tostring(Precedence.SUM, language=language) |
| 313 | elif term == as_number(1): |
| 314 | term = str(coeff) |
| 315 | else: |
| 316 | term = f'{coeff} * ' + term.tostring( |
| 317 | Precedence.PRODUCT, language=language) |
| 318 | if terms: |
| 319 | terms.append(op) |
| 320 | elif op == ' - ': |
| 321 | terms.append('-') |
| 322 | terms.append(term) |
| 323 | r = ''.join(terms) or '0' |
| 324 | precedence = Precedence.SUM if terms else Precedence.ATOM |
| 325 | elif self.op is Op.FACTORS: |
| 326 | factors = [] |
| 327 | tail = [] |
| 328 | for base, exp in sorted(self.data.items()): |
| 329 | op = ' * ' |
| 330 | if exp == 1: |
| 331 | factor = base.tostring(Precedence.PRODUCT, |
| 332 | language=language) |
| 333 | elif language is Language.C: |