def __init__(self, ctx):
self.ctx = ctx
scripts = set("postrotate prerotate firstaction lastaction preremove".split())
Stanza = Forward()
Spaces = Many(WSChar)
Bare = String(set(string.printable) - (set(string.whitespace) | set("#{}'\"")))
Num = Number & (WSChar | LineEnd)
Comment = OneLineComment("#").map(lambda x: None)
ScriptStart = WS >> PosMarker(Choice([Literal(s) for s in scripts])) << WS
ScriptEnd = Literal("endscript")
Line = (WS >> AnyChar.until(EOL) << WS).map(lambda x: "".join(x))
Lines = Line.until(ScriptEnd | EOF).map(lambda x: "\n".join(x))
Script = ScriptStart + Lines << Opt(ScriptEnd)
Script = Script.map(lambda x: [x[0], [x[1]], None])
BeginBlock = WS >> LeftCurly << WS
EndBlock = WS >> RightCurly
First = PosMarker((Bare | QuotedString)) << Spaces
Attr = Spaces >> (Num | Bare | QuotedString) << Spaces
Rest = Many(Attr)
Block = BeginBlock >> Many(Stanza).map(skip_none).map(self.to_entries) << EndBlock
Stmt = WS >> (Script | (First + Rest + Opt(Block))) << WS
Stanza <= WS >> (Stmt | Comment) << WS
Doc = Many(Stanza).map(skip_none).map(self.to_entries)
self.Top = Doc << EOF
def __init__(self, ctx):
self.ctx = ctx
Complex = Forward()
Comment = (WS >> OneLineComment("#")).map(lambda x: None)
Name = String(string.ascii_letters + "_/")
Num = Number & (WSChar | LineEnd)
StartName = WS >> PosMarker(StartTagName(Letters)) << WS
EndName = WS >> EndTagName(Letters, ignore_case=True) << WS
Cont = Char("\\") + EOL
AttrStart = Many(WSChar)
AttrEnd = (Many(WSChar) + Cont) | Many(WSChar)
OpAttr = (Literal("!=") | Literal("<=") | Literal(">=")
| InSet("<>")) & WSChar
BareAttr = String(
set(string.printable) - (set(string.whitespace) | set("<>'\"")))
Attr = AttrStart >> (Num | QuotedString | OpAttr | BareAttr) << AttrEnd
Attrs = Many(Attr)
StartTag = (WS + LT) >> (StartName + Attrs) << (GT + WS)
EndTag = (WS + LT + FS) >> EndName << (GT + WS)
Simple = WS >> (Lift(self.to_directive) * PosMarker(Name) *
Attrs) << WS
Stanza = Simple | Complex | Comment | Many(WSChar | EOL,
lower=1).map(lambda x: None)
Complex <= (Lift(self.to_section) * StartTag *
Many(Stanza).map(skip_none)) << EndTag
Doc = Many(Stanza).map(skip_none)
self.Top = Doc + EOF
def parse_doc(content, ctx):
def to_directive(x):
name, rest = x
rest = [rest] if rest is not None else []
return Directive(name=name.value.strip(),
attrs=rest,
lineno=name.lineno,
src=ctx)
def to_section(name, rest):
return Section(name=name.value.strip(),
children=rest,
lineno=name.lineno,
src=ctx)
def apply_defaults(cfg):
if "DEFAULT" not in cfg:
return cfg
defaults = cfg["DEFAULT"]
not_defaults = cfg[~eq("DEFAULT")]
for c in not_defaults:
for d in defaults.grandchildren:
if d.name not in c:
c.children.append(d)
cfg.children = list(not_defaults)
return cfg
header_chars = (set(string.printable) - set(string.whitespace) -
set("[]")) | set(" ")
sep_chars = set("=:")
key_chars = header_chars - sep_chars
value_chars = set(string.printable) - set("\n\r")
Yes = Literal("yes", True, ignore_case=True)
No = Literal("no", False, ignore_case=True)
Tru = Literal("true", True, ignore_case=True)
Fals = Literal("false", False, ignore_case=True)
Boolean = ((Yes | No | Tru | Fals) & (WSChar | LineEnd)) % "Boolean"
LeftEnd = (WS + LeftBracket + WS)
RightEnd = (WS + RightBracket + WS)
Header = (
LeftEnd >> PosMarker(String(header_chars)) << RightEnd) % "Header"
Key = WS >> PosMarker(String(key_chars)) << WS
Sep = InSet(sep_chars, "Sep")
Value = WS >> (Boolean | HangingString(value_chars))
KVPair = WithIndent(Key + Opt(Sep >> Value)) % "KVPair"
Comment = (WS >>
(OneLineComment("#") | OneLineComment(";")).map(lambda x: None))
Line = Comment | KVPair.map(to_directive)
Sect = Lift(to_section) * Header * Many(Line).map(skip_none)
Doc = Many(Comment | Sect).map(skip_none)
Top = Doc + EOF
res = Entry(children=Top(content)[0], src=ctx)
return apply_defaults(res)
def parse_doc(f, ctx=None, line_end="\n"):
def to_entry(name, rest):
if isinstance(rest, list):
return Section(name=name.value,
children=rest,
lineno=name.lineno,
src=ctx)
return Directive(name=name.value,
attrs=[rest],
lineno=name.lineno,
src=ctx)
Sep = InSet(":=")
Stmt = Forward()
Num = Number & (WSChar | LineEnd)
NULL = Literal("none", value=None)
Comment = (WS >> OneLineComment("#").map(lambda x: None))
BeginBlock = (WS >> LeftCurly << WS)
EndBlock = (WS >> RightCurly << WS)
Bare = String(
set(string.printable) - (set(string.whitespace) | set("#{}'\"")))
Name = WS >> PosMarker(
String(string.ascii_letters + "_" + string.digits)) << WS
Value = WS >> (Num | NULL | QuotedString | Bare) << WS
Block = BeginBlock >> Many(Stmt).map(skip_none) << EndBlock
Stanza = (Lift(to_entry) * Name * (Block | (Sep >> Value))) | Comment
Stmt <= WS >> Stanza << WS
Doc = Many(Stmt).map(skip_none)
Top = Doc + EOF
return Entry(children=Top(f)[0], src=ctx)
def parse_doc(self, content):
try:
def to_directive(x):
name, rest = x
rest = [rest] if rest is not None else []
return Directive(name=name.value.strip(), attrs=rest, lineno=name.lineno, src=self)
def to_section(name, rest):
return Section(name=name.value.strip(), children=rest, lineno=name.lineno, src=self)
def apply_defaults(cfg):
if "DEFAULT" not in cfg:
return cfg
defaults = cfg["DEFAULT"]
not_defaults = cfg[~eq("DEFAULT")]
for c in not_defaults:
for d in defaults.grandchildren:
if d.name not in c:
c.children.append(d)
cfg.children = list(not_defaults)
return cfg
def make_bytes(number, char_multiple):
if char_multiple.lower() == 'k':
return number * 2**10
if char_multiple.lower() == 'm':
return number * 2**20
if char_multiple.lower() == 'g':
return number * 2**30
content = "\n".join(content)
header_chars = (set(string.printable) - set(string.whitespace) - set("[]")) | set(" ")
sep_chars = set("=")
key_chars = header_chars - sep_chars
value_chars = set(string.printable) - set("\n\r")
On = Literal("on", True, ignore_case=True)
Off = Literal("off", False, ignore_case=True)
Tru = Literal("true", True, ignore_case=True)
Fals = Literal("false", False, ignore_case=True)
Boolean = ((On | Off | Tru | Fals) & (WSChar | LineEnd)) % "Boolean"
Num = Number & (WSChar | LineEnd)
QuoStr = QuotedString & (WSChar | LineEnd)
# Handle php.ini shorthand notation for memory limits: 1G, 8M, 50K
# https://www.php.net/manual/en/faq.using.php#faq.using.shorthandbytes
MemNum = (Lift(make_bytes) * Number * (Char('K') | Char('M') | Char('G'))) & (WSChar | LineEnd)
LeftEnd = (WS + LeftBracket + WS)
RightEnd = (WS + RightBracket + WS)
Header = (LeftEnd >> PosMarker(String(header_chars)) << RightEnd) % "Header"
Key = WS >> PosMarker(String(key_chars)) << WS
Sep = InSet(sep_chars, "Sep")
Value = WS >> (Boolean | MemNum | Num | QuoStr | HangingString(value_chars))
KVPair = WithIndent(Key + Opt(Sep >> Value)) % "KVPair"
Comment = (WS >> (OneLineComment(";")).map(lambda x: None))
Line = Comment | KVPair.map(to_directive)
Sect = Lift(to_section) * Header * Many(Line).map(skip_none)
Doc = Many(Comment | Sect).map(skip_none)
Top = Doc << WS << EOF
res = Entry(children=Top(content), src=self)
return apply_defaults(res)
except SkipException:
raise
except:
raise ParseException(ParseException("Could not parse content: '{0}'".
format(content)))
def loads(data):
return Entry(children=Top(data))
def load(f):
return loads(f.read())
def to_entry(name, rest):
if isinstance(rest, list):
return Section(name=name.value, children=rest, lineno=name.lineno)
return Directive(name=name.value, attrs=[rest], lineno=name.lineno)
Sep = InSet(":=")
Stmt = Forward()
Num = Number & (WSChar | LineEnd)
NULL = Literal("none", value=None)
Comment = (WS >> OneLineComment("#").map(lambda x: None))
BeginBlock = (WS >> LeftCurly << WS)
EndBlock = (WS >> RightCurly << WS)
Bare = String(set(string.printable) - (set(string.whitespace) | set("#{}'\"")))
Name = WS >> PosMarker(
String(string.ascii_letters + "_" + string.digits)) << WS
Value = WS >> (Num | NULL | QuotedString | Bare) << WS
Block = BeginBlock >> Many(Stmt).map(skip_none) << EndBlock
Stanza = (Lift(to_entry) * Name * (Block | (Sep >> Value))) | Comment
Stmt <= WS >> Stanza << WS
Doc = Many(Stmt).map(skip_none)
Top = Doc << EOF
def test_literal_value():
p = Literal("true", value=True)
assert p("true") is True
def test_literal():
p = Literal("123")
assert p("123") == "123"
def test_literal_value_ignore_case():
p = Literal("true", value=True, ignore_case=True)
assert p("TRUE") is True
def test_literal_ignore_case():
p = Literal("true", ignore_case=True)
assert p("TrUe") == "TrUe"
def test_forward():
true = Forward()
true <= Literal("True", value=True)
assert true("True")
json_parser handles primitive json parsing. It doesn't handle unicode or
numbers in scientific notation.
"""
from insights.parsr import (Colon, Comma, EOF, Forward, Literal, LeftBracket,
LeftCurly, Number, RightBracket, RightCurly,
QuotedString, WS)
def loads(data):
return Top(data)[0]
def load(f):
return loads(f.read())
JsonArray = Forward()
JsonObject = Forward()
TRUE = Literal("true", value=True)
FALSE = Literal("false", value=False)
NULL = Literal("null", value=None)
SimpleValue = (Number | QuotedString | JsonObject | JsonArray | TRUE | FALSE
| NULL)
JsonValue = (WS >> SimpleValue << WS)
Key = (QuotedString << Colon)
KVPairs = (((WS >> Key) + JsonValue).sep_by(Comma))
JsonArray <= (LeftBracket >> JsonValue.sep_by(Comma) << RightBracket)
JsonObject <= (LeftCurly >> KVPairs.map(lambda res: dict(
(k, v) for (k, v) in res)) << RightCurly)
Top = JsonValue + EOF
for n in [name.value] + attrs:
ret.append(Section(name=n, children=body, lineno=name.lineno))
else:
attrs = [attrs] if not isinstance(attrs, list) else attrs
ret.append(
Directive(name=name.value, attrs=attrs, lineno=name.lineno))
return ret
scripts = set("postrotate prerotate firstaction lastaction preremove".split())
Stanza = Forward()
Spaces = Many(WSChar)
Bare = String(set(string.printable) - (set(string.whitespace) | set("#{}'\"")))
Num = Number & (WSChar | LineEnd)
Comment = OneLineComment("#").map(lambda x: None)
ScriptStart = WS >> PosMarker(Choice([Literal(s) for s in scripts])) << WS
ScriptEnd = Literal("endscript")
Line = (WS >> AnyChar.until(EOL) << WS).map(lambda x: "".join(x))
Lines = Line.until(ScriptEnd).map(lambda x: "\n".join(x))
Script = ScriptStart + Lines << ScriptEnd
Script = Script.map(lambda x: [x[0], x[1], None])
BeginBlock = WS >> LeftCurly << WS
EndBlock = WS >> RightCurly
First = PosMarker((Bare | QuotedString)) << Spaces
Attr = Spaces >> (Num | Bare | QuotedString) << Spaces
Rest = Many(Attr)
Block = BeginBlock >> Many(Stanza).map(skip_none).map(to_entries) << EndBlock
Stmt = WS >> (Script | (First + Rest + Opt(Block))) << WS
Stanza <= WS >> (Stmt | Comment) << WS
Doc = Many(Stanza).map(skip_none).map(to_entries)
Top = Doc + EOF
