switching to high quality piper tts and added label translations

2026-01-29 23:48:19 +01:00
commit d80c619df9
3934 changed files with 1451600 additions and 0 deletions
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+"""
+This module implements the functionality to take any Python expression as a
+string and fix all numbers and other things before evaluating it,
+thus
+
+1/2
+
+returns
+
+Integer(1)/Integer(2)
+
+We use the ast module for this. It is well documented at docs.python.org.
+
+Some tips to understand how this works: use dump() to get a nice
+representation of any node. Then write a string of what you want to get,
+e.g. "Integer(1)", parse it, dump it and you'll see that you need to do
+"Call(Name('Integer', Load()), [node], [], None, None)". You do not need
+to bother with lineno and col_offset, just call fix_missing_locations()
+before returning the node.
+"""
+
+from sympy.core.basic import Basic
+from sympy.core.sympify import SympifyError
+
+from ast import parse, NodeTransformer, Call, Name, Load, \
+    fix_missing_locations, Constant, Tuple
+
+class Transform(NodeTransformer):
+
+    def __init__(self, local_dict, global_dict):
+        NodeTransformer.__init__(self)
+        self.local_dict = local_dict
+        self.global_dict = global_dict
+
+    def visit_Constant(self, node):
+        if isinstance(node.value, int):
+            return fix_missing_locations(Call(func=Name('Integer', Load()),
+                    args=[node], keywords=[]))
+        elif isinstance(node.value, float):
+            return fix_missing_locations(Call(func=Name('Float', Load()),
+                    args=[node], keywords=[]))
+        return node
+
+    def visit_Name(self, node):
+        if node.id in self.local_dict:
+            return node
+        elif node.id in self.global_dict:
+            name_obj = self.global_dict[node.id]
+
+            if isinstance(name_obj, (Basic, type)) or callable(name_obj):
+                return node
+        elif node.id in ['True', 'False']:
+            return node
+        return fix_missing_locations(Call(func=Name('Symbol', Load()),
+                args=[Constant(node.id)], keywords=[]))
+
+    def visit_Lambda(self, node):
+        args = [self.visit(arg) for arg in node.args.args]
+        body = self.visit(node.body)
+        n = Call(func=Name('Lambda', Load()),
+            args=[Tuple(args, Load()), body], keywords=[])
+        return fix_missing_locations(n)
+
+def parse_expr(s, local_dict):
+    """
+    Converts the string "s" to a SymPy expression, in local_dict.
+
+    It converts all numbers to Integers before feeding it to Python and
+    automatically creates Symbols.
+    """
+    global_dict = {}
+    exec('from sympy import *', global_dict)
+    try:
+        a = parse(s.strip(), mode="eval")
+    except SyntaxError:
+        raise SympifyError("Cannot parse %s." % repr(s))
+    a = Transform(local_dict, global_dict).visit(a)
+    e = compile(a, "<string>", "eval")
+    return eval(e, global_dict, local_dict)