Merge pull request #384 from rikardn/unicode

Add unicode function

Author: isuruf

symengine/__init__.py

@@ -29,7 +29,8 @@
     FunctionSymbol as AppliedUndef,
     golden_ratio as GoldenRatio,
     catalan as Catalan,
-    eulergamma as EulerGamma
+    eulergamma as EulerGamma,
+    unicode
 )
 from .utilities import var, symbols
 from .functions import *

symengine/lib/symengine.pxd

@@ -1103,6 +1103,7 @@ cdef extern from "<symengine/printers.h>" namespace "SymEngine":
     string ccode(const Basic &x) nogil except +
     string latex(const Basic &x) nogil except +
     string latex(const DenseMatrix &x, unsigned max_rows, unsigned max_cols) nogil except +
+    string unicode(const Basic &x) nogil except +
 
 ## Defined in 'symengine/cwrapper.cpp'
 cdef struct CRCPBasic:

symengine/lib/symengine_wrapper.pyx

@@ -5471,6 +5471,11 @@ def latex(expr):
         basic_expr = sympify(expr)
         return symengine.latex(deref(basic_expr.thisptr)).decode("utf-8")
 
+def unicode(expr):
+    cdef Basic basic_expr
+    basic_expr = sympify(expr)
+    return symengine.unicode(deref(basic_expr.thisptr)).decode("utf-8")
+
 cdef _flattened_vec(symengine.vec_basic &vec, exprs):
     cdef Basic b
     if is_sequence(exprs):

symengine/tests/test_printing.py

@@ -1,4 +1,4 @@
-from symengine import (ccode, Symbol, sqrt, Pow, Max, sin, Integer, MutableDenseMatrix)
+from symengine import (ccode, unicode, Symbol, sqrt, Pow, Max, sin, Integer, MutableDenseMatrix)
 from symengine.utilities import raises
 from symengine.printing import CCodePrinter, init_printing
 
@@ -30,3 +30,9 @@ def test_init_printing():
     assert x._repr_latex_() is None
     init_printing()
     assert x._repr_latex_() == '$x$'
+
+
+def test_unicode():
+    x = Symbol("x")
+    y = Integer(2)
+    assert unicode(x / 2) == "x\n―\n2"

symengine_version.txt

@@ -1 +1 @@
-36ac51d06e248657d828bfa4859cff32ab5f03ba
+v0.9.0