Set EOL style to native.

1 files changed, 158 insertions, 158 deletions

diff --git a/Demo/parser/unparse.py b/Demo/parser/unparse.py
index 53b57b3..72691b5 100644
--- a/Demo/parser/unparse.py
+++ b/Demo/parser/unparse.py
@@ -1,158 +1,158 @@
-"Usage: unparse.py <path to source file>"

-import sys

-

-class Unparser:

-    """Methods in this class recursively traverse an AST and

-    output source code for the abstract syntax; original formatting

-    is disregarged. """

-

-    def __init__(self, tree, file = sys.stdout):

-        """Unparser(tree, file=sys.stdout) -> None.

-         Print the source for tree to file."""

-        self.f = file

-        self._indent = 0

-        self.dispatch(tree)

-        self.f.flush()

-

-    def fill(self, text = ""):

-        "Indent a piece of text, according to the current indentation level"

-        self.f.write("\n"+"    "*self._indent + text)

-

-    def write(self, text):

-        "Append a piece of text to the current line."

-        self.f.write(text)

-

-    def enter(self):

-        "Print ':', and increase the indentation."

-        self.write(":")

-        self._indent += 1

-

-    def leave(self):

-        "Decrease the indentation level."

-        self._indent -= 1

-

-    def dispatch(self, tree):

-        "Dispatcher function, dispatching tree type T to method _T."

-        if isinstance(tree, list):

-            for t in tree:

-                self.dispatch(t)

-            return

-        meth = getattr(self, "_"+tree.__class__.__name__)

-        meth(tree)

-

-

-    ############### Unparsing methods ######################

-    # There should be one method per concrete grammar type #

-    # Constructors should be grouped by sum type. Ideally, #

-    # this would follow the order in the grammar, but      #

-    # currently doesn't.                                   #

-    ########################################################

-

-    def _Module(self, tree):

-        for stmt in tree.body:

-            self.dispatch(stmt)

-

-    # stmt

-    def _Expr(self, tree):

-        self.fill()

-        self.dispatch(tree.value)

-

-    def _Import(self, t):

-        self.fill("import ")

-        first = True

-        for a in t.names:

-            if first:

-                first = False

-            else:

-                self.write(", ")

-            self.write(a.name)

-            if a.asname:

-                self.write(" as "+a.asname)

-

-    def _Assign(self, t):

-        self.fill()

-        for target in t.targets:

-            self.dispatch(target)

-            self.write(" = ")

-        self.dispatch(t.value)

-

-    def _ClassDef(self, t):

-        self.write("\n")

-        self.fill("class "+t.name)

-        if t.bases:

-            self.write("(")

-            for a in t.bases:

-                self.dispatch(a)

-                self.write(", ")

-            self.write(")")

-        self.enter()

-        self.dispatch(t.body)

-        self.leave()

-

-    def _FunctionDef(self, t):

-        self.write("\n")

-        self.fill("def "+t.name + "(")

-        self.dispatch(t.args)

-        self.enter()

-        self.dispatch(t.body)

-        self.leave()

-

-    def _If(self, t):

-        self.fill("if ")

-        self.dispatch(t.test)

-        self.enter()

-        # XXX elif?

-        self.dispatch(t.body)

-        self.leave()

-        if t.orelse:

-            self.fill("else")

-            self.enter()

-            self.dispatch(t.orelse)

-            self.leave()

-

-    # expr

-    def _Str(self, tree):

-        self.write(repr(tree.s))

-

-    def _Name(self, t):

-        self.write(t.id)

-

-    def _List(self, t):

-        self.write("[")

-        for e in t.elts:

-            self.dispatch(e)

-            self.write(", ")

-        self.write("]")

-

-    unop = {"Invert":"~", "Not": "not", "UAdd":"+", "USub":"-"}

-    def _UnaryOp(self, t):

-        self.write(self.unop[t.op.__class__.__name__])

-        self.write("(")

-        self.dispatch(t.operand)

-        self.write(")")

-

-    # others

-    def _arguments(self, t):

-        first = True

-        # XXX t.defaults

-        for a in t.args:

-            if first:first = False

-            else: self.write(", ")

-            self.dispatch(a)

-        if t.vararg:

-            if first:first = False

-            else: self.write(", ")

-            self.write("*"+t.vararg)

-        if t.kwarg:

-            if first:first = False

-            else: self.write(", ")

-            self.write("**"+self.kwarg)

-        self.write(")")

-

-def roundtrip(filename):

-    source = open(filename).read()

-    tree = compile(source, filename, "exec", 0x400)

-    Unparser(tree)

-

-if __name__=='__main__':

-    roundtrip(sys.argv[1])

+"Usage: unparse.py <path to source file>"
+import sys
+
+class Unparser:
+    """Methods in this class recursively traverse an AST and
+    output source code for the abstract syntax; original formatting
+    is disregarged. """
+
+    def __init__(self, tree, file = sys.stdout):
+        """Unparser(tree, file=sys.stdout) -> None.
+         Print the source for tree to file."""
+        self.f = file
+        self._indent = 0
+        self.dispatch(tree)
+        self.f.flush()
+
+    def fill(self, text = ""):
+        "Indent a piece of text, according to the current indentation level"
+        self.f.write("\n"+"    "*self._indent + text)
+
+    def write(self, text):
+        "Append a piece of text to the current line."
+        self.f.write(text)
+
+    def enter(self):
+        "Print ':', and increase the indentation."
+        self.write(":")
+        self._indent += 1
+
+    def leave(self):
+        "Decrease the indentation level."
+        self._indent -= 1
+
+    def dispatch(self, tree):
+        "Dispatcher function, dispatching tree type T to method _T."
+        if isinstance(tree, list):
+            for t in tree:
+                self.dispatch(t)
+            return
+        meth = getattr(self, "_"+tree.__class__.__name__)
+        meth(tree)
+
+
+    ############### Unparsing methods ######################
+    # There should be one method per concrete grammar type #
+    # Constructors should be grouped by sum type. Ideally, #
+    # this would follow the order in the grammar, but      #
+    # currently doesn't.                                   #
+    ########################################################
+
+    def _Module(self, tree):
+        for stmt in tree.body:
+            self.dispatch(stmt)
+
+    # stmt
+    def _Expr(self, tree):
+        self.fill()
+        self.dispatch(tree.value)
+
+    def _Import(self, t):
+        self.fill("import ")
+        first = True
+        for a in t.names:
+            if first:
+                first = False
+            else:
+                self.write(", ")
+            self.write(a.name)
+            if a.asname:
+                self.write(" as "+a.asname)
+
+    def _Assign(self, t):
+        self.fill()
+        for target in t.targets:
+            self.dispatch(target)
+            self.write(" = ")
+        self.dispatch(t.value)
+
+    def _ClassDef(self, t):
+        self.write("\n")
+        self.fill("class "+t.name)
+        if t.bases:
+            self.write("(")
+            for a in t.bases:
+                self.dispatch(a)
+                self.write(", ")
+            self.write(")")
+        self.enter()
+        self.dispatch(t.body)
+        self.leave()
+
+    def _FunctionDef(self, t):
+        self.write("\n")
+        self.fill("def "+t.name + "(")
+        self.dispatch(t.args)
+        self.enter()
+        self.dispatch(t.body)
+        self.leave()
+
+    def _If(self, t):
+        self.fill("if ")
+        self.dispatch(t.test)
+        self.enter()
+        # XXX elif?
+        self.dispatch(t.body)
+        self.leave()
+        if t.orelse:
+            self.fill("else")
+            self.enter()
+            self.dispatch(t.orelse)
+            self.leave()
+
+    # expr
+    def _Str(self, tree):
+        self.write(repr(tree.s))
+
+    def _Name(self, t):
+        self.write(t.id)
+
+    def _List(self, t):
+        self.write("[")
+        for e in t.elts:
+            self.dispatch(e)
+            self.write(", ")
+        self.write("]")
+
+    unop = {"Invert":"~", "Not": "not", "UAdd":"+", "USub":"-"}
+    def _UnaryOp(self, t):
+        self.write(self.unop[t.op.__class__.__name__])
+        self.write("(")
+        self.dispatch(t.operand)
+        self.write(")")
+
+    # others
+    def _arguments(self, t):
+        first = True
+        # XXX t.defaults
+        for a in t.args:
+            if first:first = False
+            else: self.write(", ")
+            self.dispatch(a)
+        if t.vararg:
+            if first:first = False
+            else: self.write(", ")
+            self.write("*"+t.vararg)
+        if t.kwarg:
+            if first:first = False
+            else: self.write(", ")
+            self.write("**"+self.kwarg)
+        self.write(")")
+
+def roundtrip(filename):
+    source = open(filename).read()
+    tree = compile(source, filename, "exec", 0x400)
+    Unparser(tree)
+
+if __name__=='__main__':
+    roundtrip(sys.argv[1])