Improve lisp compiler and interpreter.
This commit is contained in:
parent
4180e3b427
commit
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GPG key ID:
7DAC3AA211CBD921
1 changed files with 363 additions and 287 deletions
640
i3toolwait
640
i3toolwait
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@ -2,6 +2,7 @@
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# -*- coding: utf-8 -*-
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import string
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import typing
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import asyncio
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import signal
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@ -21,317 +22,391 @@ try:
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except ImportError:
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from yaml import SafeLoader
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class Expression:
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def __init__(self):
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pass
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def reduce(self, ipc_data):
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if self.should_call:
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return self.call(ipc_data)
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return functools.reduce(self.reduce_function(ipc_data), self.children)
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@property
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def should_call(self):
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return False
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@property
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def children(self):
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raise NotImplemented('TODO: implement in subclass')
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def reduce_function(self, ipc_data):
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raise NotImplemented('TODO: implement in subclass')
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def call(self, ipc_data):
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raise NotImplementedError('TODO: implement in subclass')
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class LiteralExpression(Expression):
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def __init__(self, value):
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self._value = value
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def __repr__(self) -> str:
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return f'"{self._value}"'
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@property
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def children(self):
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return [self._value]
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def reduce_function(self, ipc_data):
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def reduce(a, b):
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raise NotImplemented('I should never be called')
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def lazy_fc_if(env, a, b, c):
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a.reduce(env)
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if a.reduced:
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b.reduce(env)
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return b
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c.reduce(env)
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class IntLiteralExpression(LiteralExpression):
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def __repr__(self) -> str:
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return str(self._value)
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def lazy_fc_nif(env, a, b, c):
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a.reduce(env)
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if not a.reduced:
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b.reduce(env)
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return b
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c.reduce(env)
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class BoolLiteralExpression(LiteralExpression):
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def __repr__(self) -> str:
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return str(self._value)
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class AndExpression(Expression):
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def __init__(self, children, *args, **kwargs):
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self._children = children
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super().__init__(*args, **kwargs)
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def __repr__(self) -> str:
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cs = ' '.join([repr(c) for c in self.children])
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return f'(& {cs})'
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@property
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def children(self):
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return self._children
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def reduce_function(self, ipc_data):
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return lambda a, b: a.reduce(ipc_data) and b.reduce(ipc_data)
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class OrExpression(Expression):
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def __init__(self, children, *args, **kwargs):
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self._children = children
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super().__init__(*args, **kwargs)
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def __repr__(self) -> str:
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cs = ' '.join([repr(c) for c in self.children])
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return f'(| {cs})'
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@property
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def children(self):
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return self._children
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def reduce_function(self, ipc_data):
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return lambda a, b: a.reduce(ipc_data) or b.reduce(ipc_data)
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class IfExpression(Expression):
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def __init__(self, children, *args, **kwargs):
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self._children = children
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super().__init__(*args, **kwargs)
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def __repr__(self) -> str:
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cs = ' '.join([repr(c) for c in self.children])
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return f'(? {cs})'
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@property
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def should_call(self):
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return True
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@property
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def children(self):
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return self._children
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def call(self, ipc_data):
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if self._children[0].reduce(ipc_data):
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i = 1
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else:
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i = 2
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return self._children[i].reduce(ipc_data)
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class EqExpression(Expression):
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def __init__(self, children, *args, **kwargs):
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self._children = children
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super().__init__(*args, **kwargs)
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def __repr__(self) -> str:
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cs = ' '.join([repr(c) for c in self.children])
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return f'(= {cs})'
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@property
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def children(self):
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return self._children
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def reduce_function(self, ipc_data):
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def reduce(v0, v1):
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print(f'reducing: {repr(self)}')
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return v0.reduce(ipc_data) == v1.reduce(ipc_data)
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return reduce
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class NeqExpression(Expression):
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def __init__(self, children, *args, **kwargs):
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self._children = children
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super().__init__(*args, **kwargs)
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def __repr__(self) -> str:
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cs = ' '.join([repr(c) for c in self.children])
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return f'(!= {cs})'
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@property
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def children(self):
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return self._children
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def reduce_function(self, ipc_data):
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def reduce(v0, v1):
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return v0.reduce(ipc_data) != v1.reduce(ipc_data)
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return reduce
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class GtExpression(Expression):
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def __init__(self, children, *args, **kwargs):
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self._children = children
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super().__init__(*args, **kwargs)
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def __repr__(self) -> str:
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cs = ' '.join([repr(c) for c in self.children])
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return f'(> {cs})'
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@property
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def children(self):
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return self._children
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def reduce_function(self, ipc_data):
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def reduce(v0, v1):
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return v0.reduce(ipc_data) > v1.reduce(ipc_data)
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return reduce
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class LtExpression(Expression):
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def __init__(self, children, *args, **kwargs):
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self._children = children
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super().__init__(*args, **kwargs)
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def __repr__(self) -> str:
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cs = ' '.join([repr(c) for c in self.children])
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return f'(< {cs})'
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@property
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def children(self):
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return self._children
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def reduce_function(self, ipc_data):
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def reduce(v0, v1):
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return v0.reduce(ipc_data) < v1.reduce(ipc_data)
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return reduce
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class LoadExpression(Expression):
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def __init__(self, value, *args, **kwargs):
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self._value = value
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super().__init__(*args, **kwargs)
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def __repr__(self) -> str:
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return f'(load {self._value})'
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@property
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def should_call(self):
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return True
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@property
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def children(self):
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return [self._value]
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def call(self, ipc_data):
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ipc_value = ipc_data
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for k in self._value[0].children[0].strip('.').split('.'):
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def fc_load(env, path):
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ipc_value = env.input
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for k in path.strip('.').split('.'):
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ipc_value = ipc_value[k]
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return ipc_value
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class HasKeyExpression(Expression):
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def __init__(self, value, *args, **kwargs):
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self._value = value
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super().__init__(*args, **kwargs)
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def __repr__(self) -> str:
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return f'(has-key {self._value})'
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@property
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def should_call(self):
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return True
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@property
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def children(self):
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return [self._value]
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def call(self, ipc_data):
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ipc_value = ipc_data
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for k in self._value[0].children[0].strip('.').split('.'):
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def fc_has_key(env, path):
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ipc_value = env.input
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for k in path.strip('.').split('.'):
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try:
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ipc_value = ipc_value[k]
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except KeyError:
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return False
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return True
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class Environment:
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expression_mapping = {
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'&': AndExpression,
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'|': OrExpression,
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'?': IfExpression,
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'=': EqExpression,
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'!=': NeqExpression,
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'>': GtExpression,
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'<': LtExpression,
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'load': LoadExpression,
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'has-key': HasKeyExpression,
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def __init__(self, input):
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self._input = input
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self._variables = {}
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self._functions = {
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'__last__': lambda *a: a[-1], # special function, if multiple expressions, execute all and return result of last one
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'defvar': lambda env, n, v: env.set_variable(n, v),
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'write': lambda _, a: print(a),
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'load': fc_load,
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'has-key': fc_has_key,
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'=': lambda _, a, b: a == b,
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'!=': lambda _, a, b: a != b,
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'>': lambda _, a, b: a > b,
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'<': lambda _, a, b: a < b,
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'>=': lambda _, a, b: a >= b,
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'<=': lambda _, a, b: a <= b,
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'+': lambda _, *a: sum(a),
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'-': lambda _, a, b: a - b,
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'*': lambda _, *a: functools.reduce(lambda a, b: a * b, a),
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'/': lambda _, a, b: a // b,
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}
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self._lazy_functions = {
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'?': lazy_fc_if,
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'!?': lazy_fc_nif,
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}
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def group_tokens(tokens: list[str]) -> list[list[str]]:
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groups = []
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current_group = []
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@property
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def input(self):
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return self._input
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brace_count = 0
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for token in tokens:
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if token == '(':
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brace_count += 1
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elif token == ')':
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brace_count -= 1
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if brace_count == 0:
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groups += [current_group]
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current_group = []
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elif brace_count == 0:
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groups += [[token]]
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def set_variable(self, name: str, value: object):
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self._variables[name] = value
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def get_variable(self, name: str):
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return self._variables[name]
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def get_function(self, name: str):
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return self._functions[name]
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def get_lazy_function(self, name: str):
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return self._lazy_functions[name]
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class Expression:
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STATE_CONSTRUCTED = 0
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STATE_REDUCED = 1
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def __init__(self):
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self._state = Expression.STATE_CONSTRUCTED
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self._reduced = None
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def _reduce(self, env: Environment, args: list[object]):
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_ = env, args
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raise NotImplementedError('Implement in subclass')
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def reduce(self, env: Environment):
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if self._state == Expression.STATE_REDUCED:
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return
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self._reduced = self._reduce(env, [])
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self._state = Expression.STATE_REDUCED
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@property
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def reduced(self) -> object:
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if self._state != Expression.STATE_REDUCED:
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raise RuntimeError('Tried to get the reduced value before reducing')
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return self._reduced
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class Constant(Expression):
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def __init__(self, value):
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super().__init__()
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self._value = value
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def __repr__(self):
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return repr(self._value)
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def _reduce(self, env: Environment, args: list[Expression]):
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_ = env, args
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return self._value
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class VariableSet(Constant):
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pass
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class VariableGet(Constant):
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def _reduce(self, env: Environment, args: list[Expression]):
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_ = args
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return env.get_variable(self._value)
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class Function(Expression):
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def __init__(self, fc, args: list[Expression]):
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super().__init__()
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self._fc = fc
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self._args = args
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def __repr__(self):
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return f'({self._fc} {self._args})'
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def _reduce(self, env: Environment, args: list[Expression]):
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try:
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fc = env.get_function(self._fc)
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[a.reduce(env) for a in args]
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r = fc(env, *[a.reduced for a in args])
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except KeyError as e:
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fc = env.get_lazy_function(self._fc)
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r = fc(env, *args)
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return r
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def reduce(self, env: Environment):
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if self._state == Expression.STATE_REDUCED:
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return
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self._reduced = self._reduce(env, self._args)
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self._state = Expression.STATE_REDUCED
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class Token:
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CONSTANT_STRING = 0
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CONSTANT_INTEGER = 10
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CONSTANT_BOOLEAN = 20
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KEYWORD = 30
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VARIABLE_SET = 40
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VARIABLE_GET = 50
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FUNCTION = 60
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GROUPING_OPEN = 70
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GROUPING_CLOSE = 80
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WHITESPACE = 90
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def __init__(self, t, v):
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self.t = t
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self.v = v
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def __repr__(self):
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return f'{self.v}::{self.t}'
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def to_expression(self):
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if self.t == Token.CONSTANT_STRING:
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return Constant(self.v[1:-1]) # slice away the quotes
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if self.t == Token.CONSTANT_INTEGER:
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return Constant(int(self.v, base=0))
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if self.t == Token.CONSTANT_BOOLEAN:
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return Constant(self.v == 'True')
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if self.t == Token.KEYWORD:
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raise RuntimeError(f'This is a meta token type and should be swallowed by the sanitizer: {self}')
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if self.t == Token.VARIABLE_GET:
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return VariableGet(self.v)
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if self.t == Token.VARIABLE_SET:
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return VariableSet(self.v)
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if self.t == Token.FUNCTION:
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raise RuntimeError('Cant construct function just from its token')
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if self.t == Token.GROUPING_OPEN or self.t == Token.GROUPING_CLOSE:
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raise RuntimeError('Groupings should never be constructed, this is a bug')
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if self.t == Token.WHITESPACE:
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raise RuntimeError('Whitespaces should not be present in this stage of the build')
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raise RuntimeError(f'The token type {self.t} is not implemented')
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def token_extract_string(stream: str) -> tuple[Token, str]:
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if stream[0] != '"':
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raise ValueError('No such token in stream')
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i = stream.find('"', 1)
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return Token(Token.CONSTANT_STRING, stream[:i+1]), stream[i+1:]
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def token_extract_integer(stream: str) -> tuple[Token, str]:
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i = 0
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base = None
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if stream[i] in '+-':
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i += 1
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if stream[i] in '0123456789':
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i += 1
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else:
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current_group += [token]
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return groups
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raise ValueError('Malformed integer')
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def build_expression(tokens: list[str]) -> Expression:
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if tokens[0] == '(' and tokens[-1] == ')':
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tokens = tokens[1:-1]
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token_groups = group_tokens(tokens)
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if stream[i] in 'xbo':
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base = stream[i]
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i += 1
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int_set = {None: '0123456789', 'x': '0123456789abcdefABCDEF', 'b': '01', 'o': '01234567'}[base]
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while stream[i] in int_set:
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i += 1
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return Token(Token.CONSTANT_INTEGER, stream[:i]), stream[i:]
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expressions = [build_expression(ts) for ts in token_groups[1:]] if len(token_groups) > 1 else []
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root_expression = None
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token = token_groups[0][0]
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if token in expression_mapping:
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root_expression = expression_mapping[token](expressions)
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elif token.startswith('"'):
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root_expression = LiteralExpression(token[1:-1])
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elif token.isnumeric():
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root_expression = IntLiteralExpression(int(token))
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elif token in ('True', 'False'):
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root_expression = BoolLiteralExpression(token == 'True')
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assert isinstance(root_expression, Expression)
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return root_expression
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def token_extract_boolean(stream: str) -> tuple[Token, str]:
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if stream.startswith('True'):
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return Token(Token.CONSTANT_BOOLEAN, stream[:4]), stream[4:]
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elif stream.startswith('False'):
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return Token(Token.CONSTANT_BOOLEAN, stream[:5]), stream[5:]
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raise ValueError('No such token in stream')
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def take_space(s: str) -> tuple:
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if s[0] in ' \n':
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return None, s[1:]
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return None, s
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def take_operator(s: str) -> tuple:
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token = ''
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for c in s:
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if c in ''.join(set(expression_mapping.keys())):
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token += c
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def token_extract_keyword(stream: str) -> tuple[Token, str]:
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i = 0
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if stream[i] in string.ascii_letters + '_-><=!+-*/?':
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i += 1
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else:
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break
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if token == '':
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return None, s
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else:
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return token, s[len(token):]
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raise ValueError('No keyword in stream')
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while stream[i] in string.ascii_letters + '_-><=!+-*/?':
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i += 1
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return Token(Token.KEYWORD, stream[:i]), stream[i:]
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def take_brace(s: str) -> tuple:
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if s[0] in '()':
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return s[0], s[1:]
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else:
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return None, s
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def token_extract_grouping_open(stream: str) -> tuple[Token, str]:
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if stream[0] == '(':
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return Token(Token.GROUPING_OPEN, '('), stream[1:]
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raise ValueError('No such token in stream')
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def take_literal(s: str) -> tuple:
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token = '"'
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if s[0] != '"':
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return None, s
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for c in s[1:]:
|
||||
token += c
|
||||
if c == '"':
|
||||
break
|
||||
if not token.endswith('"'):
|
||||
raise ValueError('Missing closing quotes (`"`)')
|
||||
return token, s[len(token):]
|
||||
def token_extract_grouping_close(stream: str) -> tuple[Token, str]:
|
||||
if stream[0] == ')':
|
||||
return Token(Token.GROUPING_CLOSE, ')'), stream[1:]
|
||||
raise ValueError('No such token in stream')
|
||||
|
||||
def take_int_literal(s: str) -> tuple:
|
||||
token = ''
|
||||
for c in s:
|
||||
if not c.isnumeric():
|
||||
break
|
||||
token += c
|
||||
if token == '':
|
||||
return None, s
|
||||
return token, s[len(token):]
|
||||
def token_extract_space(stream: str) -> tuple[Token, str]:
|
||||
i = 0
|
||||
while stream[i] in string.whitespace:
|
||||
i += 1
|
||||
return Token(Token.WHITESPACE, stream[:i]), stream[i:]
|
||||
|
||||
def take_bool_literal(s: str) -> tuple:
|
||||
if s.startswith('True'):
|
||||
return 'True', s[len('True'):]
|
||||
if s.startswith('False'):
|
||||
return 'False', s[len('False'):]
|
||||
return None, s
|
||||
|
||||
def tokenize(s: str) -> list[str]:
|
||||
operator_extractors = [
|
||||
take_operator,
|
||||
take_brace,
|
||||
take_literal,
|
||||
take_int_literal,
|
||||
take_bool_literal,
|
||||
take_space,
|
||||
def tokenize(program: str) -> list[Token]:
|
||||
extractors = [
|
||||
token_extract_boolean,
|
||||
token_extract_integer,
|
||||
token_extract_string,
|
||||
token_extract_keyword,
|
||||
token_extract_grouping_open,
|
||||
token_extract_grouping_close,
|
||||
token_extract_space,
|
||||
]
|
||||
p = program
|
||||
tokens = []
|
||||
while s != '':
|
||||
previous_len = len(s)
|
||||
for operator_extractor in operator_extractors:
|
||||
token, s = operator_extractor(s)
|
||||
if token is not None:
|
||||
tokens += [token]
|
||||
while p:
|
||||
success = False
|
||||
for e in extractors:
|
||||
try:
|
||||
t, p = e(p)
|
||||
tokens += [t]
|
||||
success = True
|
||||
break
|
||||
if len(s) == previous_len:
|
||||
raise ValueError(f'Could not tokenize string {s}')
|
||||
except ValueError:
|
||||
pass
|
||||
if not success:
|
||||
raise ValueError('Program is invalid')
|
||||
return [t for t in tokens if t.t != Token.WHITESPACE]
|
||||
|
||||
def tokenize_sanitize_function(token_before: Token | None, token: Token, token_after: Token | None) -> Token | None:
|
||||
if token_before is None:
|
||||
return
|
||||
if token_before.t == Token.GROUPING_OPEN and token.t == Token.KEYWORD:
|
||||
return Token(Token.FUNCTION, token.v)
|
||||
|
||||
def tokenize_sanitize_setvar(token_before: Token | None, token: Token, token_after: Token | None) -> Token | None:
|
||||
if token_before is None:
|
||||
return
|
||||
if (token_before.t == Token.FUNCTION and token_before.v == 'defvar') and token.t == Token.KEYWORD:
|
||||
return Token(Token.VARIABLE_SET, token.v)
|
||||
|
||||
def tokenize_sanitize_getvar(token_before: Token | None, token: Token, token_after: Token | None) -> Token | None:
|
||||
if token_before is None:
|
||||
if token.t == Token.KEYWORD:
|
||||
return Token(Token.VARIABLE_GET, token.v)
|
||||
return
|
||||
if (token_before.t != Token.FUNCTION or token_before.v != 'defvar') and token.t == Token.KEYWORD:
|
||||
return Token(Token.VARIABLE_GET, token.v)
|
||||
|
||||
def _tokenize_sanitize(tokens: list[Token]) -> tuple[bool, list[Token]]:
|
||||
sanitizers = [
|
||||
tokenize_sanitize_function,
|
||||
tokenize_sanitize_setvar,
|
||||
tokenize_sanitize_getvar,
|
||||
]
|
||||
new_tokens = []
|
||||
changed = False
|
||||
for i in range(len(tokens)):
|
||||
for s in sanitizers:
|
||||
p_token = new_tokens[i-1] if i > 0 else None
|
||||
n_token = tokens[i+1] if i < (len(tokens)-1) else None
|
||||
new_token = s(p_token, tokens[i], n_token)
|
||||
if new_token is not None:
|
||||
changed = True
|
||||
new_tokens += [new_token]
|
||||
break
|
||||
else:
|
||||
new_tokens += [tokens[i]]
|
||||
return changed, new_tokens
|
||||
|
||||
def tokenize_sanitize(tokens: list[Token]) -> list[Token]:
|
||||
_, tokens = _tokenize_sanitize(tokens)
|
||||
return tokens
|
||||
|
||||
def parse(s: str) -> Expression:
|
||||
tokens = tokenize(s)
|
||||
return build_expression(tokens)
|
||||
def take_token_group(tokens: list[Token], n: int = 1) -> list[Token]:
|
||||
i = 0
|
||||
start = i
|
||||
group_count = 0
|
||||
consider_groups = False
|
||||
while n:
|
||||
if tokens[i].t == Token.GROUPING_OPEN:
|
||||
consider_groups = True
|
||||
if group_count == 0:
|
||||
start = i
|
||||
group_count += 1
|
||||
elif tokens[i].t == Token.GROUPING_CLOSE:
|
||||
group_count -= 1
|
||||
if group_count == 0:
|
||||
consider_groups = False
|
||||
else:
|
||||
if not consider_groups:
|
||||
start = i
|
||||
if group_count == 0:
|
||||
n -= 1
|
||||
if group_count < 0:
|
||||
raise ValueError('reached past end')
|
||||
i += 1
|
||||
return tokens[start:i]
|
||||
|
||||
def unwrap_token_group(tokens: list[Token]) -> list[Token]:
|
||||
if tokens[0].t != Token.GROUPING_OPEN:
|
||||
return tokens
|
||||
|
||||
brace_count = 0
|
||||
for i, t in enumerate(tokens):
|
||||
brace_count += int(t.t == Token.GROUPING_OPEN)
|
||||
brace_count -= int(t.t == Token.GROUPING_CLOSE)
|
||||
if i == len(tokens) - 2:
|
||||
if brace_count > 0:
|
||||
tokens = tokens[1:-1]
|
||||
break
|
||||
return tokens
|
||||
|
||||
def build(tokens: list[Token]) -> Expression:
|
||||
tokens = unwrap_token_group(tokens)
|
||||
token_groups: list[list[Token]] = []
|
||||
i = 1
|
||||
while True:
|
||||
try:
|
||||
token_groups += [take_token_group(tokens, n=i)]
|
||||
i += 1
|
||||
except IndexError:
|
||||
break
|
||||
|
||||
# special function case
|
||||
if len(token_groups[0]) == 1 and token_groups[0][0].t == Token.FUNCTION:
|
||||
token_0 = token_groups[0][0]
|
||||
args = [build(tg) for tg in token_groups[1:]]
|
||||
return Function(token_0.v, args)
|
||||
|
||||
# combine to multiple statements
|
||||
if len(token_groups) > 1:
|
||||
return Function('__last__', [build(tg) for tg in token_groups])
|
||||
|
||||
# create a basic expression
|
||||
if len(token_groups) == 1 and len(token_groups[0]) == 1:
|
||||
return token_groups[0][0].to_expression()
|
||||
|
||||
raise RuntimeError(f'Did not handle token case in build function, token_groups: {token_groups}')
|
||||
|
||||
def parse(program: str) -> Expression:
|
||||
tokens = tokenize_sanitize(tokenize(program))
|
||||
expression = build(tokens)
|
||||
return expression
|
||||
|
||||
class Filter(Expression):
|
||||
|
||||
|
|
@ -453,7 +528,8 @@ def window_new(runtime_data: RuntimeData, *, debug):
|
|||
print(json.dumps(e.ipc_data))
|
||||
async with runtime_data.lock:
|
||||
for i, cfg in enumerate(runtime_data.programs):
|
||||
if cfg.match.reduce(e.ipc_data):
|
||||
cfg.match.reduce(Environment(e.ipc_data))
|
||||
if cfg.match.reduced:
|
||||
container_id = e.ipc_data['container']['id']
|
||||
await ipc.command(f'for_window [con_id="{container_id}"] focus')
|
||||
await ipc.command(f'move container to workspace {cfg.workspace}')
|
||||
|
|
|
|||
Loading…
Reference in a new issue