'''
ret = ast.literal_eval(valu)
assert isinstance(ret, str)
return ret
# For AstConverter, one-to-one replacements from lark to synapse AST
terminalClassMap = {
'ABSPROP':
s_ast.AbsProp,
'ABSPROPNOUNIV':
s_ast.AbsProp,
'ALLTAGS':
lambda _: s_ast.TagMatch(''),
'BREAK':
lambda _: s_ast.BreakOper(),
'CONTINUE':
lambda _: s_ast.ContinueOper(),
'DOUBLEQUOTEDSTRING':
lambda x: s_ast.Const(unescape(x)
), # drop quotes and handle escape characters
'NUMBER':
lambda x: s_ast.Const(s_ast.parseNumber(x)),
'SINGLEQUOTEDSTRING':
lambda x: s_ast.Const(x[1:-1]), # drop quotes
'TAGMATCH':
lambda x: s_ast.TagMatch(kids=AstConverter._tagsplit(x)),
'VARTOKN':
lambda x: s_ast.Const(x[1:-1] if len(x) and x[0] in ("'", '"') else x)
}
evalcache = s_cache.FixedCache(_forkedParseEval, size=100)
querycache = s_cache.FixedCache(_forkedParseQuery, size=100)
def massage_vartokn(x):
return s_ast.Const('' if not x else (x[1:-1] if x[0] == "'" else (
unescape(x) if x[0] == '"' else x)))
# For AstConverter, one-to-one replacements from lark to synapse AST
terminalClassMap = {
'ABSPROP': s_ast.AbsProp,
'ABSPROPNOUNIV': s_ast.AbsProp,
'ALLTAGS': lambda _: s_ast.TagMatch(''),
'BREAK': lambda _: s_ast.BreakOper(),
'CONTINUE': lambda _: s_ast.ContinueOper(),
'DEREFMATCHNOSEP': massage_vartokn,
'DOUBLEQUOTEDSTRING': lambda x: s_ast.Const(unescape(
x)), # drop quotes and handle escape characters
'TRIPLEQUOTEDSTRING': lambda x: s_ast.Const(x[3:-3]), # drop the triple 's
'NUMBER': lambda x: s_ast.Const(s_ast.parseNumber(x)),
'HEXNUMBER': lambda x: s_ast.Const(s_ast.parseNumber(x)),
'BOOL': lambda x: s_ast.Bool(x == 'true'),
'SINGLEQUOTEDSTRING': lambda x: s_ast.Const(x[1:-1]), # drop quotes
'TAGMATCH': lambda x: s_ast.TagMatch(kids=AstConverter._tagsplit(x)),
'VARTOKN': massage_vartokn,
}
# For AstConverter, one-to-one replacements from lark to synapse AST
ruleClassMap = {
def oper(self):
'''
'''
self.ignore(whitespace)
if not self.more():
self._raiseSyntaxError('unexpected end of query text')
if self.nextstr('{'):
return self.subquery()
# some syntax elements prior to a prop/oper name...
if self.nextstr('->'):
return self.formpivot()
if self.nextstr('-+>'):
return self.formjoin()
if self.nextstr('<-'):
return self.formpivotin()
if self.nextstr('<+-'):
return self.formjoinin()
if self.nextstr('##'):
return self.lifttagtag()
char = self.nextchar()
# var list assignment
# ($foo, $bar) = $baz
if char == '(':
varl = self.varlist()
self.ignore(whitespace)
self.nextmust('=')
self.ignore(whitespace)
valu = self.valu()
return s_ast.VarListSetOper(kids=(varl, valu))
# $foo = valu var assignment
if char == '$':
varn = self.varname()
self.ignore(whitespace)
self.nextmust('=')
self.ignore(whitespace)
valu = self.valu()
kids = (varn, valu)
return s_ast.VarSetOper(kids=kids)
if char in ('+', '-'):
return self.filtoper()
if char == '#':
return self.liftbytag()
# :foo:bar relative property
if char == ':':
prop = self.relprop()
# :foo=10 here could be assignment...
self.ignore(whitespace)
if self.nextstr('->'):
return self.proppivot(prop)
if self.nextstr('-+>'):
return self.propjoin(prop)
if self.nextstrs('<-', '<+-'):
self._raiseSyntaxError('Pivot in syntax does not currently support relative properties.')
tokn = self.peek(varset)
if tokn == 'for':
return self.forloop()
if tokn == 'switch':
return self.switchcase()
if tokn == 'break':
self.offs += 5
return s_ast.BreakOper()
if tokn == 'continue':
self.offs += 8
return s_ast.ContinueOper()
noff = self.offs
name = self.noms(varset)
if not name:
self._raiseSyntaxError('unknown query syntax')
if self.modelinfo.isprop(name):
# before ignoring more whitespace, check for form#tag[=time]
if self.nextstr('#'):
tag = self.tagname()
form = s_ast.Const(name)
self.ignore(whitespace)
kids = [form, tag]
if self.nextchar() in cmprstart:
kids.append(self.cmpr())
kids.append(self.valu())
return s_ast.LiftFormTag(kids=kids)
self.ignore(whitespace)
if self.nextchar() in cmprstart:
cmpr = self.cmpr()
valu = self.valu()
kids = (s_ast.Const(name), cmpr, valu)
return s_ast.LiftPropBy(kids=kids)
# lift by prop only
return s_ast.LiftProp(kids=(s_ast.Const(name),))
if name in self.stormcmds:
argv = self.cmdargv()
self.ignore(whitespace)
# eat a trailing | from a command at the beginning
if self.nextstr('|'):
self.offs += 1
return s_ast.CmdOper(kids=(s_ast.Const(name), argv))
# rewind and noms until whitespace
self.offs = noff
tokn = self.noms(until=whitespace)
ndefs = list(s_scrape.scrape(tokn))
if ndefs:
return s_ast.LiftByScrape(ndefs)
self.offs = noff
raise s_exc.NoSuchProp(name=name)