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tim-onetim-one
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Whitespace normalization.
1 parent 08533fd commit 710ab3b

9 files changed

Lines changed: 990 additions & 993 deletions

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‎Demo/parser/unparse.py‎

Lines changed: 158 additions & 158 deletions
Original file line numberDiff line numberDiff line change
@@ -1,158 +1,158 @@
1-
"Usage: unparse.py <path to source file>"
2-
import sys
3-
4-
class Unparser:
5-
"""Methods in this class recursively traverse an AST and
6-
output source code for the abstract syntax; original formatting
7-
is disregarged. """
8-
9-
def __init__(self, tree, file = sys.stdout):
10-
"""Unparser(tree, file=sys.stdout) -> None.
11-
Print the source for tree to file."""
12-
self.f = file
13-
self._indent = 0
14-
self.dispatch(tree)
15-
self.f.flush()
16-
17-
def fill(self, text = ""):
18-
"Indent a piece of text, according to the current indentation level"
19-
self.f.write("\n"+" "*self._indent + text)
20-
21-
def write(self, text):
22-
"Append a piece of text to the current line."
23-
self.f.write(text)
24-
25-
def enter(self):
26-
"Print ':', and increase the indentation."
27-
self.write(":")
28-
self._indent += 1
29-
30-
def leave(self):
31-
"Decrease the indentation level."
32-
self._indent -= 1
33-
34-
def dispatch(self, tree):
35-
"Dispatcher function, dispatching tree type T to method _T."
36-
if isinstance(tree, list):
37-
for t in tree:
38-
self.dispatch(t)
39-
return
40-
meth = getattr(self, "_"+tree.__class__.__name__)
41-
meth(tree)
42-
43-
44-
############### Unparsing methods ######################
45-
# There should be one method per concrete grammar type #
46-
# Constructors should be grouped by sum type. Ideally, #
47-
# this would follow the order in the grammar, but #
48-
# currently doesn't. #
49-
########################################################
50-
51-
def _Module(self, tree):
52-
for stmt in tree.body:
53-
self.dispatch(stmt)
54-
55-
# stmt
56-
def _Expr(self, tree):
57-
self.fill()
58-
self.dispatch(tree.value)
59-
60-
def _Import(self, t):
61-
self.fill("import ")
62-
first = True
63-
for a in t.names:
64-
if first:
65-
first = False
66-
else:
67-
self.write(", ")
68-
self.write(a.name)
69-
if a.asname:
70-
self.write(" as "+a.asname)
71-
72-
def _Assign(self, t):
73-
self.fill()
74-
for target in t.targets:
75-
self.dispatch(target)
76-
self.write(" = ")
77-
self.dispatch(t.value)
78-
79-
def _ClassDef(self, t):
80-
self.write("\n")
81-
self.fill("class "+t.name)
82-
if t.bases:
83-
self.write("(")
84-
for a in t.bases:
85-
self.dispatch(a)
86-
self.write(", ")
87-
self.write(")")
88-
self.enter()
89-
self.dispatch(t.body)
90-
self.leave()
91-
92-
def _FunctionDef(self, t):
93-
self.write("\n")
94-
self.fill("def "+t.name + "(")
95-
self.dispatch(t.args)
96-
self.enter()
97-
self.dispatch(t.body)
98-
self.leave()
99-
100-
def _If(self, t):
101-
self.fill("if ")
102-
self.dispatch(t.test)
103-
self.enter()
104-
# XXX elif?
105-
self.dispatch(t.body)
106-
self.leave()
107-
if t.orelse:
108-
self.fill("else")
109-
self.enter()
110-
self.dispatch(t.orelse)
111-
self.leave()
112-
113-
# expr
114-
def _Str(self, tree):
115-
self.write(repr(tree.s))
116-
117-
def _Name(self, t):
118-
self.write(t.id)
119-
120-
def _List(self, t):
121-
self.write("[")
122-
for e in t.elts:
123-
self.dispatch(e)
124-
self.write(", ")
125-
self.write("]")
126-
127-
unop = {"Invert":"~", "Not": "not", "UAdd":"+", "USub":"-"}
128-
def _UnaryOp(self, t):
129-
self.write(self.unop[t.op.__class__.__name__])
130-
self.write("(")
131-
self.dispatch(t.operand)
132-
self.write(")")
133-
134-
# others
135-
def _arguments(self, t):
136-
first = True
137-
# XXX t.defaults
138-
for a in t.args:
139-
if first:first = False
140-
else: self.write(", ")
141-
self.dispatch(a)
142-
if t.vararg:
143-
if first:first = False
144-
else: self.write(", ")
145-
self.write("*"+t.vararg)
146-
if t.kwarg:
147-
if first:first = False
148-
else: self.write(", ")
149-
self.write("**"+self.kwarg)
150-
self.write(")")
151-
152-
def roundtrip(filename):
153-
source = open(filename).read()
154-
tree = compile(source, filename, "exec", 0x400)
155-
Unparser(tree)
156-
157-
if __name__=='__main__':
158-
roundtrip(sys.argv[1])
1+
"Usage: unparse.py <path to source file>"
2+
import sys
3+
4+
class Unparser:
5+
"""Methods in this class recursively traverse an AST and
6+
output source code for the abstract syntax; original formatting
7+
is disregarged. """
8+
9+
def __init__(self, tree, file = sys.stdout):
10+
"""Unparser(tree, file=sys.stdout) -> None.
11+
Print the source for tree to file."""
12+
self.f = file
13+
self._indent = 0
14+
self.dispatch(tree)
15+
self.f.flush()
16+
17+
def fill(self, text = ""):
18+
"Indent a piece of text, according to the current indentation level"
19+
self.f.write("\n"+" "*self._indent + text)
20+
21+
def write(self, text):
22+
"Append a piece of text to the current line."
23+
self.f.write(text)
24+
25+
def enter(self):
26+
"Print ':', and increase the indentation."
27+
self.write(":")
28+
self._indent += 1
29+
30+
def leave(self):
31+
"Decrease the indentation level."
32+
self._indent -= 1
33+
34+
def dispatch(self, tree):
35+
"Dispatcher function, dispatching tree type T to method _T."
36+
if isinstance(tree, list):
37+
for t in tree:
38+
self.dispatch(t)
39+
return
40+
meth = getattr(self, "_"+tree.__class__.__name__)
41+
meth(tree)
42+
43+
44+
############### Unparsing methods ######################
45+
# There should be one method per concrete grammar type #
46+
# Constructors should be grouped by sum type. Ideally, #
47+
# this would follow the order in the grammar, but #
48+
# currently doesn't. #
49+
########################################################
50+
51+
def _Module(self, tree):
52+
for stmt in tree.body:
53+
self.dispatch(stmt)
54+
55+
# stmt
56+
def _Expr(self, tree):
57+
self.fill()
58+
self.dispatch(tree.value)
59+
60+
def _Import(self, t):
61+
self.fill("import ")
62+
first = True
63+
for a in t.names:
64+
if first:
65+
first = False
66+
else:
67+
self.write(", ")
68+
self.write(a.name)
69+
if a.asname:
70+
self.write(" as "+a.asname)
71+
72+
def _Assign(self, t):
73+
self.fill()
74+
for target in t.targets:
75+
self.dispatch(target)
76+
self.write(" = ")
77+
self.dispatch(t.value)
78+
79+
def _ClassDef(self, t):
80+
self.write("\n")
81+
self.fill("class "+t.name)
82+
if t.bases:
83+
self.write("(")
84+
for a in t.bases:
85+
self.dispatch(a)
86+
self.write(", ")
87+
self.write(")")
88+
self.enter()
89+
self.dispatch(t.body)
90+
self.leave()
91+
92+
def _FunctionDef(self, t):
93+
self.write("\n")
94+
self.fill("def "+t.name + "(")
95+
self.dispatch(t.args)
96+
self.enter()
97+
self.dispatch(t.body)
98+
self.leave()
99+
100+
def _If(self, t):
101+
self.fill("if ")
102+
self.dispatch(t.test)
103+
self.enter()
104+
# XXX elif?
105+
self.dispatch(t.body)
106+
self.leave()
107+
if t.orelse:
108+
self.fill("else")
109+
self.enter()
110+
self.dispatch(t.orelse)
111+
self.leave()
112+
113+
# expr
114+
def _Str(self, tree):
115+
self.write(repr(tree.s))
116+
117+
def _Name(self, t):
118+
self.write(t.id)
119+
120+
def _List(self, t):
121+
self.write("[")
122+
for e in t.elts:
123+
self.dispatch(e)
124+
self.write(", ")
125+
self.write("]")
126+
127+
unop = {"Invert":"~", "Not": "not", "UAdd":"+", "USub":"-"}
128+
def _UnaryOp(self, t):
129+
self.write(self.unop[t.op.__class__.__name__])
130+
self.write("(")
131+
self.dispatch(t.operand)
132+
self.write(")")
133+
134+
# others
135+
def _arguments(self, t):
136+
first = True
137+
# XXX t.defaults
138+
for a in t.args:
139+
if first:first = False
140+
else: self.write(", ")
141+
self.dispatch(a)
142+
if t.vararg:
143+
if first:first = False
144+
else: self.write(", ")
145+
self.write("*"+t.vararg)
146+
if t.kwarg:
147+
if first:first = False
148+
else: self.write(", ")
149+
self.write("**"+self.kwarg)
150+
self.write(")")
151+
152+
def roundtrip(filename):
153+
source = open(filename).read()
154+
tree = compile(source, filename, "exec", 0x400)
155+
Unparser(tree)
156+
157+
if __name__=='__main__':
158+
roundtrip(sys.argv[1])

‎Lib/compiler/ast.py‎

Lines changed: 3 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -553,7 +553,7 @@ def __init__(self, decorators, name, argnames, defaults, flags, doc, code, linen
553553
self.varargs = 1
554554
if flags & CO_VARKEYWORDS:
555555
self.kwargs = 1
556-
556+
557557

558558

559559
def getChildren(self):
@@ -584,7 +584,7 @@ def __init__(self, code, lineno=None):
584584
self.lineno = lineno
585585
self.argnames = ['[outmost-iterable]']
586586
self.varargs = self.kwargs = None
587-
587+
588588

589589

590590
def getChildren(self):
@@ -763,7 +763,7 @@ def __init__(self, argnames, defaults, flags, code, lineno=None):
763763
self.varargs = 1
764764
if flags & CO_VARKEYWORDS:
765765
self.kwargs = 1
766-
766+
767767

768768

769769
def getChildren(self):

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