本文整理汇总了Python中pyparsing.Dict方法的典型用法代码示例。如果您正苦于以下问题：Python pyparsing.Dict方法的具体用法？Python pyparsing.Dict怎么用？Python pyparsing.Dict使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类pyparsing的用法示例。
在下文中一共展示了pyparsing.Dict方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: _parse
# 需要导入模块: import pyparsing [as 别名]
# 或者: from pyparsing import Dict [as 别名]
def _parse(mystr):
LBRACE, RBRACE, EQUAL = map(pp.Suppress, "{}=")
field = pp.Word(pp.printables + ' ', excludeChars='[]=')
field.addParseAction(pp.tokenMap(str.rstrip))
string = pp.dblQuotedString().setParseAction(pp.removeQuotes)
number = pp.pyparsing_common.number()
date_expr = pp.Regex(r'\d\d\d\d-\d\d-\d\d')
time_expr = pp.Regex(r'\d\d:\d\d:\d\d\.\d\d\d')
nan = pp.Keyword('nan')
scalar_value = (string | date_expr | time_expr | number | nan)
list_marker = pp.Suppress("[]")
value_list = pp.Forward()
jobject = pp.Forward()
memberDef1 = pp.Group(field + EQUAL + scalar_value)
memberDef2 = pp.Group(field + EQUAL + jobject)
memberDef3 = pp.Group(field + list_marker + EQUAL + LBRACE + value_list +
RBRACE)
memberDef = memberDef1 | memberDef2 | memberDef3
value_list <<= (pp.delimitedList(scalar_value, ",") |
pp.ZeroOrMore(pp.Group(pp.Dict(memberDef2))))
value_list.setParseAction(lambda t: [pp.ParseResults(t[:])])
members = pp.OneOrMore(memberDef)
jobject <<= pp.Dict(LBRACE + pp.ZeroOrMore(memberDef) + RBRACE)
# force empty jobject to be a dict
jobject.setParseAction(lambda t: t or {})
parser = members
parser = pp.OneOrMore(pp.Group(pp.Dict(memberDef)))
return parser.parseString(mystr) 示例2: jsParse
# 需要导入模块: import pyparsing [as 别名]
# 或者: from pyparsing import Dict [as 别名]
def jsParse(inStr):
# This disaster is a context-free grammar parser for parsing javascript object literals.
# It needs to be able to handle a lot of the definitional messes you find in in-the-wild
# javascript object literals.
# Unfortunately, Javascript is /way/ more tolerant then JSON when it comes to object literals
# so we can't just parse objects using python's `json` library.
TRUE = pp.Keyword("true").setParseAction( pp.replaceWith(True) )
FALSE = pp.Keyword("false").setParseAction( pp.replaceWith(False) )
NULL = pp.Keyword("null").setParseAction( pp.replaceWith(None) )
jsonString = pp.quotedString.setParseAction( pp.removeQuotes )
jsonNumber = pp.Combine( pp.Optional('-') + ( '0' | pp.Word('123456789',pp.nums) ) +
pp.Optional( '.' + pp.Word(pp.nums) ) +
pp.Optional( pp.Word('eE',exact=1) + pp.Word(pp.nums+'+-',pp.nums) ) )
jsonObject = pp.Forward()
jsonValue = pp.Forward()
jsonDict = pp.Forward()
jsonArray = pp.Forward()
jsonElements = pp.Forward()
rawText = pp.Regex('[a-zA-Z_$][0-9a-zA-Z_$]*')
commaToNull = pp.Word(',,', exact=1).setParseAction(pp.replaceWith(None))
jsonElements << pp.ZeroOrMore(commaToNull) + pp.Optional(jsonObject) + pp.ZeroOrMore((pp.Suppress(',') + jsonObject) | commaToNull)
jsonValue << ( jsonString | jsonNumber | TRUE | FALSE | NULL )
dictMembers = pp.delimitedList( pp.Group( (rawText | jsonString) + pp.Suppress(':') + (jsonValue | jsonDict | jsonArray)))
jsonDict << ( pp.Dict( pp.Suppress('{') + pp.Optional(dictMembers) + pp.ZeroOrMore(pp.Suppress(',')) + pp.Suppress('}') ) )
jsonArray << ( pp.Group(pp.Suppress('[') + pp.Optional(jsonElements) + pp.Suppress(']') ) )
jsonObject << (jsonValue | jsonDict | jsonArray)
jsonComment = pp.cppStyleComment
jsonObject.ignore( jsonComment )
def convertDict(s, l, toks):
return dict(toks.asList())
def convertNumbers(s,l,toks):
n = toks[0]
try:
return int(n)
except ValueError:
return float(n)
jsonNumber.setParseAction(convertNumbers)
jsonDict.setParseAction(convertDict)
# jsonObject.setDebug()
jsonObject.parseString('"inStr"').pop()
return jsonObject.parseString(inStr).pop()
# Stolen from http://stackoverflow.com/a/12017573/268006