# module pyparsing.py
#
# Copyright (c) 2003-2016 Paul T. McGuire
#
# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
# IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
# CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
# TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
# SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#
__doc__ = \
"""
pyparsing module - Classes and methods to define and execute parsing grammars
The pyparsing module is an alternative approach to creating and executing simple grammars,
vs. the traditional lex/yacc approach, or the use of regular expressions. With pyparsing, you
don't need to learn a new syntax for defining grammars or matching expressions - the parsing module
provides a library of classes that you use to construct the grammar directly in Python.
Here is a program to parse "Hello, World!" (or any greeting of the form
C{"<salutation>, <addressee>!"}), built up using L{Word}, L{Literal}, and L{And} elements
(L{'+'<ParserElement.__add__>} operator gives L{And} expressions, strings are auto-converted to
L{Literal} expressions)::
from pip._vendor.pyparsing import Word, alphas
# define grammar of a greeting
greet = Word(alphas) + "," + Word(alphas) + "!"
hello = "Hello, World!"
print (hello, "->", greet.parseString(hello))
The program outputs the following::
Hello, World! -> ['Hello', ',', 'World', '!']
The Python representation of the grammar is quite readable, owing to the self-explanatory
class names, and the use of '+', '|' and '^' operators.
The L{ParseResults} object returned from L{ParserElement.parseString<ParserElement.parseString>} can be accessed as a nested list, a dictionary, or an
object with named attributes.
The pyparsing module handles some of the problems that are typically vexing when writing text parsers:
- extra or missing whitespace (the above program will also handle "Hello,World!", "Hello , World !", etc.)
- quoted strings
- embedded comments
"""
__version__ = "2.2.0"
__versionTime__ = "06 Mar 2017 02:06 UTC"
__author__ = "Paul McGuire <ptmcg@users.sourceforge.net>"
import string
from weakref import ref as wkref
import copy
import sys
import warnings
import re
import sre_constants
import collections
import pprint
import traceback
import types
from datetime import datetime
try:
from _thread import RLock
except ImportError:
from threading import RLock
try:
from collections import OrderedDict as _OrderedDict
except ImportError:
try:
from ordereddict import OrderedDict as _OrderedDict
except ImportError:
_OrderedDict = None
#~ sys.stderr.write( "testing pyparsing module, version %s, %s\n" % (__version__,__versionTime__ ) )
__all__ = [
'And', 'CaselessKeyword', 'CaselessLiteral', 'CharsNotIn', 'Combine', 'Dict', 'Each', 'Empty',
'FollowedBy', 'Forward', 'GoToColumn', 'Group', 'Keyword', 'LineEnd', 'LineStart', 'Literal',
'MatchFirst', 'NoMatch', 'NotAny', 'OneOrMore', 'OnlyOnce', 'Optional', 'Or',
'ParseBaseException', 'ParseElementEnhance', 'ParseException', 'ParseExpression', 'ParseFatalException',
'ParseResults', 'ParseSyntaxException', 'ParserElement', 'QuotedString', 'RecursiveGrammarException',
'Regex', 'SkipTo', 'StringEnd', 'StringStart', 'Suppress', 'Token', 'TokenConverter',
'White', 'Word', 'WordEnd', 'WordStart', 'ZeroOrMore',
'alphanums', 'alphas', 'alphas8bit', 'anyCloseTag', 'anyOpenTag', 'cStyleComment', 'col',
'commaSeparatedList', 'commonHTMLEntity', 'countedArray', 'cppStyleComment', 'dblQuotedString',
'dblSlashComment', 'delimitedList', 'dictOf', 'downcaseTokens', 'empty', 'hexnums',
'htmlComment', 'javaStyleComment', 'line', 'lineEnd', 'lineStart', 'lineno',
'makeHTMLTags', 'makeXMLTags', 'matchOnlyAtCol', 'matchPreviousExpr', 'matchPreviousLiteral',
'nestedExpr', 'nullDebugAction', 'nums', 'oneOf', 'opAssoc', 'operatorPrecedence', 'printables',
'punc8bit', 'pythonStyleComment', 'quotedString', 'removeQuotes', 'replaceHTMLEntity',
'replaceWith', 'restOfLine', 'sglQuotedString', 'srange', 'stringEnd',
'stringStart', 'traceParseAction', 'unicodeString', 'upcaseTokens', 'withAttribute',
'indentedBlock', 'originalTextFor', 'ungroup', 'infixNotation','locatedExpr', 'withClass',
'CloseMatch', 'tokenMap', 'pyparsing_common',
]
system_version = tuple(sys.version_info)[:3]
PY_3 = system_version[0] == 3
if PY_3:
_MAX_INT = sys.maxsize
basestring = str
unichr = chr
_ustr = str
# build list of single arg builtins, that can be used as parse actions
singleArgBuiltins = [sum, len, sorted, reversed, list, tuple, set, any, all, min, max]
else:
_MAX_INT = sys.maxint
range = xrange
def _ustr(obj):
"""Drop-in replacement for str(obj) that tries to be Unicode friendly. It first tries
str(obj). If that fails with a UnicodeEncodeError, then it tries unicode(obj). It
then < returns the unicode object | encodes it with the default encoding | ... >.
"""
if isinstance(obj,unicode):
return obj
try:
# If this works, then _ustr(obj) has the same behaviour as str(obj), so
# it won't break any existing code.
return str(obj)
except UnicodeEncodeError:
# Else encode it
ret = unicode(obj).encode(sys.getdefaultencoding(), 'xmlcharrefreplace')
xmlcharref = Regex(r'&#\d+;')
xmlcharref.setParseAction(lambda t: '\\u' + hex(int(t[0][2:-1]))[2:])
return xmlcharref.transformString(ret)
# build list of single arg builtins, tolerant of Python version, that can be used as parse actions
singleArgBuiltins = []
import __builtin__
for fname in "sum len sorted reversed list tuple set any all min max".split():
try:
singleArgBuiltins.append(getattr(__builtin__,fname))
except AttributeError:
continue
_generatorType = type((y for y in range(1)))
def _xml_escape(data):
"""Escape &, <, >, ", ', etc. in a string of data."""
# ampersand must be replaced first
from_symbols = '&><"\''
to_symbols = ('&'+s+';' for s in "amp gt lt quot apos".split())
for from_,to_ in zip(from_symbols, to_symbols):
data = data.replace(from_, to_)
return data
class _Constants(object):
pass
alphas = string.ascii_uppercase + string.ascii_lowercase
nums = "0123456789"
hexnums = nums + "ABCDEFabcdef"
alphanums = alphas + nums
_bslash = chr(92)
printables = "".join(c for c in string.printable if c not in string.whitespace)
class ParseBaseException(Exception):
"""base exception class for all parsing runtime exceptions"""
# Performance tuning: we construct a *lot* of these, so keep this
# constructor as small and fast as possible
def __init__( self, pstr, loc=0, msg=None, elem=None ):
self.loc = loc
if msg is None:
self.msg = pstr
self.pstr = ""
else:
self.msg = msg
self.pstr = pstr
self.parserElement = elem
self.args = (pstr, loc, msg)
@classmethod
def _from_exception(cls, pe):
"""
internal factory method to simplify creating one type
没有合适的资源?快使用搜索试试~ 我知道了~
温馨提示
管理系统是一种通过计算机技术实现的用于组织、监控和控制各种活动的软件系统。这些系统通常被设计用来提高效率、减少错误、加强安全性,同时提供数据和信息支持。以下是一些常见类型的管理系统: 学校管理系统: 用于学校或教育机构的学生信息、教职员工信息、课程管理、成绩记录、考勤管理等。学校管理系统帮助提高学校的组织效率和信息管理水平。 人力资源管理系统(HRM): 用于处理组织内的人事信息,包括员工招聘、培训记录、薪资管理、绩效评估等。HRM系统有助于企业更有效地管理人力资源,提高员工的工作效率和满意度。 库存管理系统: 用于追踪和管理商品或原材料的库存。这种系统可以帮助企业避免库存过剩或不足的问题,提高供应链的效率。 客户关系管理系统(CRM): 用于管理与客户之间的关系,包括客户信息、沟通记录、销售机会跟踪等。CRM系统有助于企业更好地理解客户需求,提高客户满意度和保留率。 医院管理系统: 用于管理医院或医疗机构的患者信息、医生排班、药品库存等。这种系统可以提高医疗服务的质量和效率。 财务管理系统: 用于记录和管理组织的财务信息,包括会计凭证、财务报表、预算管理等。财务管理系统
资源推荐
资源详情
资源评论
收起资源包目录
基于flask与MySQL完成的音乐库管理系统.zip (2000个子文件)
views.cpython-37.pyc.2888312956904 0B
changelog 3KB
style.css 188KB
bootstrap.css 144KB
bootstrap.css 143KB
bootstrap.css 143KB
bootstrap.min.css 120KB
bootstrap.min.css 118KB
bootstrap.min.css 118KB
AdminLTE.css 107KB
AdminLTE.min.css 87KB
samples.css 64KB
animate.css 54KB
_all-skins.css 48KB
_all-skins.min.css 41KB
_all-skins.min.css 41KB
font-awesome.css 37KB
datepicker3.css 33KB
datepicker3.css 33KB
editor_ie7.css 33KB
editor_iequirks.css 31KB
editor_ie8.css 31KB
editor_ie.css 31KB
font-awesome.min.css 30KB
editor_gecko.css 30KB
editor.css 30KB
bootstrap-theme.css 26KB
bootstrap-theme.css 26KB
bootstrap-theme.min.css 23KB
bootstrap-theme.min.css 23KB
fullcalendar.css 22KB
_all.css 21KB
select2.css 17KB
_all.css 15KB
jquery.dataTables.css 15KB
select2.min.css 15KB
dialog_ie7.css 15KB
dialog_ie8.css 14KB
dialog_iequirks.css 14KB
dialog_ie.css 14KB
jquery.dataTables_themeroller.css 14KB
_all.css 14KB
_all.css 13KB
dialog.css 13KB
jquery.dataTables.min.css 13KB
fullcalendar.min.css 10KB
dataTables.bootstrap.css 9KB
slider.css 8KB
daterangepicker-bs3.css 7KB
style.css 6KB
htmleaf-demo.css 6KB
fullcalendar.print.css 5KB
bootstrap-movie.css 5KB
skin-black-light.css 5KB
sample.css 5KB
skin-blue-light.css 5KB
bootstrap-colorpicker.css 4KB
skin-yellow-light.css 4KB
skin-purple-light.css 4KB
skin-green-light.css 4KB
skin-red-light.css 4KB
skin-black-light.min.css 4KB
skin-black.css 4KB
skin-blue-light.min.css 4KB
skin-purple-light.min.css 4KB
skin-green-light.min.css 4KB
bootstrap-colorpicker.min.css 4KB
skin-red-light.min.css 4KB
skin-blue.css 4KB
skin-yellow.css 3KB
skin-purple.css 3KB
skin-green.css 3KB
skin-black.min.css 3KB
style.css 3KB
skin-red.css 3KB
ion.rangeSlider.css 3KB
skin-blue.min.css 3KB
skin-purple.min.css 3KB
skin-yellow.min.css 3KB
skin-green.min.css 3KB
skin-red.min.css 3KB
bootstrap-timepicker.css 3KB
bootstrap3-wysihtml5.css 2KB
bootstrap-timepicker.min.css 2KB
purple.css 2KB
yellow.css 2KB
orange.css 2KB
green.css 2KB
bootstrap3-wysihtml5.min.css 2KB
pink.css 2KB
grey.css 2KB
blue.css 2KB
aero.css 2KB
pace.css 2KB
ion.rangeSlider.skinFlat.css 2KB
red.css 2KB
line.css 2KB
ion.rangeSlider.skinNice.css 2KB
pace.min.css 2KB
contents.css 2KB
共 2000 条
- 1
- 2
- 3
- 4
- 5
- 6
- 20
资源评论
JJJ69
- 粉丝: 6227
- 资源: 5778
上传资源 快速赚钱
- 我的内容管理 展开
- 我的资源 快来上传第一个资源
- 我的收益 登录查看自己的收益
- 我的积分 登录查看自己的积分
- 我的C币 登录后查看C币余额
- 我的收藏
- 我的下载
- 下载帮助
安全验证
文档复制为VIP权益,开通VIP直接复制
信息提交成功