解析python中的配置设置

时间：2014-01-08 20:45:31

标签： python parsing pyparsing

我正在尝试使用ssh脚本解析我从stdout获取的配置设置文件。我需要把它们变成键/值对。配置设置如下所示：

输出设置 

show all    <==== TRYING TO KEEP THIS LINE FROM BEING PARSED
Active System Configuration     <==== TRYING TO KEEP THIS LINE FROM BEING PARSED
# General Information
   Unit undefined
   Subdivision undefined
   Address undefined
   Site ID undefined
   Device ID 0
# Application FOO Information
   FOO BAR AAA 0000
   FOO Checkin 0000
# LSD Status Information
   LSD not configured/built for vital parameters.
# System Time
   Local Time 01-08-14 16:13:50
   Time sync Source None
# Last Reset:
   A Processor:01-08-14 16:04:31 -- App Select Alarm Not Cleared
   B Processor:01-08-14 16:04:26 -- A Processor Initiated Reset
# Active Alarms:
   01-08-14 16:04:33 -- App Select Required
# Comm Settings - Port 1
   MAC Address 00:00:00:00:01:D3
   IP Address 172.168.0.11
   SubnetMask 255.255.255.0
   DCDC Server Enabled
   DCDC Server IP Pool Start 172.168.0.11
   DCDC Server IP Pool End 172.168.0.43
   DCDC Server Default Gateway 0.0.0.0
# Comm Settings - Port 2
   MAC Address 00:00:00:00:01:D3
   IP Address 172.168.0.11
   SubnetMask 255.255.255.0
   DCDC Server Enabled
   DCDC Server IP Pool Start 172.168.0.11
   DCDC Server IP Pool End 172.168.0.44
   DCDC Server Default Gateway 0.0.0.0
   Default Gateway 0.0.0.0
# Comm Settings - Routing Table
   Route #1 - Disabled
   Route #2 - Disabled
   Route #3 - Disabled
   Route #4 - Disabled
   Route #5 - Disabled
   Route #6 - Disabled
   Route #7 - Disabled
   Route #8 - Disabled
# Comm Settings - HTTP Settings
   HTTP TCP Port# 1000
   Inactivity timeout 60
   Trusted Source 1 Status Disabled
   Trusted Source 1 IP Addr 0.0.0.0
   Trusted Source 1 Net Mask 0.0.0.0
   Trusted Source 2 Status Disabled
   Trusted Source 2 IP Addr 0.0.0.0
   Trusted Source 2 Net Mask 0.0.0.0
# Comm Settings - Count Settings
   Count Port 1 Enabled
   Count Port 2 Enabled
   Inactivity timeout 0
   HTTP TCP Port# 23
   Trusted Source 1 Status Disabled
   Trusted Source 1 IP Addr 0.0.0.0
   Trusted Source 1 Net Mask 0.0.0.0
   Trusted Source 2 Status Disabled
   Trusted Source 2 IP Addr 0.0.0.0
   Trusted Source 2 Net Mask 0.0.0.0
# Comm Settings - SSH Settings
   SSH Port 1 Enabled
   SSH Port 2 Enabled
   SSH Inactivity timeout 0
   SSH Server Port# 10
# Comm Settings - Diagnostic Port Settings
   Bad Rate 57000
   Parity None
   Data Bits 8
   Stop Bits 1
   Flow Control Disabled
# Executive Information
   PN 050000-000
   Ver 8.09Bld0000F
   Module KMO-3
   Processor A
   Copyright FOO(C)2013
   TXT AAA0AAA0
#
   PN 050000-000
   Ver 8.09Bld0000F
   Module KMO-3
   Processor B
   Copyright FOO(C)2013
   TXT ABB0ABB0
#
   PN 050000-000
   Ver 8.09Bld0000F
   Module KMO-3
   Processor C
   Copyright FOO(C)2013
   TXT BCC0BCC0
#
   HPN 202551-001
   Ver 1.1
   Module CDU
   Processor DF123000
   Ref U2
   Copyright FOO(C)2013
   Datecode 060808

# Boot Information
   PN 072000-000
   Ver 5.12Bld002
   Module FOO-3
   Processor A
   Copyright FOO(C)2012
   TXT  DCC0DCC0
#
   PN 072000-000
   Ver 5.12Bld002
   Module FOO-3
   Processor B
   Copyright FOO(C)2012
   TXT  EFF0EFF0
#
   PN 072000-000
   Ver 5.12Bld002
   Module FOO-3
   Processor C
   Copyright FOO(C)2012
   TXT  EEE0EEE0
# BAR Application
   BAR MAP file not loaded
   BAR CONFIG file not loaded
# ROK Key Management Configuration
   Encrypted CARR Key (No CARR Key Present)
   Encrypted CARR TXT (No CARR Key Present)
   Pending Encrypted CARR Key (No Future CARR Key Present)
   Pending Encrypted CARR TXT (No Future CARR Key Present)
   RC2 Key File TXT (No RC2 Key Present)
# Vital Application Information
   Name VVDefault App
   Index 0
   EPT TXT 2578
   EPT Checkin 80DC
# Non-Vital Application Information
   Name BBDefault App
   Index 0
   EPT TXT 521D
   EPT Checkin 64E0
# ROK Vital Configuration
   ROK not configured/build for vital parameters.
# ROK Non-Vital Configuration
   ROK not configured/built for non-vital parameters.
# SNMP General Configuration
   Build incomplete - ZZ2 module may not present.
 SSH>      <==== TRYING TO KEEP THIS LINE FROM BEING PARSED

PARSER 

# BNF for data

# dataGroups ::= "#" + Optional(restOfLine)
# keyword ::= ( alpha+ )+
# value ::= ( alpha+ )
# configDef ::= Group(keyname + value)


hashmark = Literal('#').suppress()
snmpCommand = Literal("show all").suppress()
sshResidue = Literal("SSH>").suppress()
keyname = Word(alphas,alphanums+'-')
value = Combine(empty + SkipTo(LineEnd()))
GCONF = Keyword("#")
configDef = Group(GCONF + value("name") + \
    Dict(OneOrMore(Group(~GCONF + keyname + value))))
configDef = Group(value("name") + \
    Dict(OneOrMore(Group(keyname + value))))

configDef.ignore(snmpCommand)
configDef.ignore(sshResidue)
configDef.ignore(hashmark)

# parse the data
ifcdata = OneOrMore(configDef).parseString(data)

for ifc in ifcdata:
    print ifc.dump()

以上就是我正在使用pyparsing，阅读 Getting Started with Pyparsing 但仍然挂断电话。现在我解析了所有内容，甚至是“show all”和“Active System Configuration”。我正在研究如何省略这些，然后根据“＃”符号对设置进行分组，因为这是唯一类似的标识符。我需要解析的数据看起来像这样：

PARSED DATA 

['General Information',['Unit', 'undefined',],['Subdivision', 'undefined',],['Address', 'undefined'],['Site ID','undefined'],['Device ID', '0']]
['Application FOO Information',['FOO BAR', 'AAA 0000'],['FOO Checkin', '0000']]
['LSD Status Information', ['LSD', 'not configured/built for vital parameters.']]
['System Time', ['Local Time', '01-08-14 16:13:50'],['Time sync Source', 'None']]
['Last Reset:', ['A Processor', '01-08-14 16:04:31 -- App Select Alarm Not Cleared']['B Processor', '01-08-14 16:04:26 -- A Processor Initiated Reset']]
['Active Alarms:', ['01-08-14 16:04:33', 'App Select Required']]
.... and so on

因为帖子超过here，我正在玩pyparsing。我真的很喜欢这个模块。任何帮助是极大的赞赏。谢谢！

1 个答案:

答案 0 :(得分：3)

考虑一下：

from pyparsing import *
import re

data = ... # data goes here

date_regex = re.compile(r'\d\d-\d\d-\d\d')
time_regex = re.compile(r'\d\d:\d\d:\d\d')
pairs = [{'category': 'General Information',
          'kv': Group(Word(alphanums) + Word(alphanums))},
         {'category': 'Last Reset:',
          'kv': Group(Word(alphas, max=1) + Word(alphas)) + Literal(':').suppress()
                + Group(Regex(date_regex) + Regex(time_regex)
                + Optional(SkipTo(LineEnd())))
          }
         ]
# build list of categories with associated parsing rules
categories = [Word("# ").suppress() + x['category']
              + OneOrMore(Group(x['kv']))
              for x in pairs]
# account for thing you don't have specific rules for
categories.append(Word("#").suppress() + Optional(SkipTo(LineEnd())) +
                  Group(OneOrMore(Combine(Word(alphanums) + SkipTo(LineEnd()))))
                  )
# OR all the categories together
categories_ored = categories[0]
for c in categories[1:]:
    categories_ored |= c
configDef = OneOrMore(categories_ored)
suppress_tokens = ["show all", "SSH>", "Active System Configuration"]
suppresses = [Literal(x).suppress() for x in suppress_tokens]
for s in suppresses:
    configDef.ignore(s)

result = configDef.parseString(data)
for e in result:
    print(e)

这会给您以下结果：

General Information
[['Unit', 'undefined']]
[['Subdivision', 'undefined']]
[['Address', 'undefined']]
[['Site', 'ID']]
[['undefined', 'Device']]
[['ID', '0']]
Application FOO Information
['FOO BAR AAA 0000', 'FOO Checkin 0000']
LSD Status Information
['LSD not configured/built for vital parameters.']
System Time
['Local Time 01-08-14 16:13:50', 'Time sync Source None']
Last Reset:
[['A', 'Processor'], ['01-08-14', '16:04:31', '-- App Select Alarm Not Cleared']]
[['B', 'Processor'], ['01-08-14', '16:04:26', '-- A Processor Initiated Reset']]
Active Alarms:
['01-08-14 16:04:33 -- App Select Required']
Comm Settings - Port 1
['MAC Address 00:00:00:00:01:D3', 'IP Address 172.168.0.11', 'SubnetMask 255.255.255.0', 'DCDC Server Enabled', 'DCDC Server IP Pool Start 172.168.0.11', 'DCDC Server IP Pool End 172.168.0.43', 'DCDC Server Default Gateway 0.0.0.0']
Comm Settings - Port 2
['MAC Address 00:00:00:00:01:D3', 'IP Address 172.168.0.11', 'SubnetMask 255.255.255.0', 'DCDC Server Enabled', 'DCDC Server IP Pool Start 172.168.0.11', 'DCDC Server IP Pool End 172.168.0.44', 'DCDC Server Default Gateway 0.0.0.0', 'Default Gateway 0.0.0.0']
Comm Settings - Routing Table
['Route #1 - Disabled', 'Route #2 - Disabled', 'Route #3 - Disabled', 'Route #4 - Disabled', 'Route #5 - Disabled', 'Route #6 - Disabled', 'Route #7 - Disabled', 'Route #8 - Disabled']
Comm Settings - HTTP Settings
['HTTP TCP Port# 1000', 'Inactivity timeout 60', 'Trusted Source 1 Status Disabled', 'Trusted Source 1 IP Addr 0.0.0.0', 'Trusted Source 1 Net Mask 0.0.0.0', 'Trusted Source 2 Status Disabled', 'Trusted Source 2 IP Addr 0.0.0.0', 'Trusted Source 2 Net Mask 0.0.0.0']
Comm Settings - Count Settings
['Count Port 1 Enabled', 'Count Port 2 Enabled', 'Inactivity timeout 0', 'HTTP TCP Port# 23', 'Trusted Source 1 Status Disabled', 'Trusted Source 1 IP Addr 0.0.0.0', 'Trusted Source 1 Net Mask 0.0.0.0', 'Trusted Source 2 Status Disabled', 'Trusted Source 2 IP Addr 0.0.0.0', 'Trusted Source 2 Net Mask 0.0.0.0']
Comm Settings - SSH Settings
['SSH Port 1 Enabled', 'SSH Port 2 Enabled', 'SSH Inactivity timeout 0', 'SSH Server Port# 10']
Comm Settings - Diagnostic Port Settings
['Bad Rate 57000', 'Parity None', 'Data Bits 8', 'Stop Bits 1', 'Flow Control Disabled']
Executive Information
['PN 050000-000', 'Ver 8.09Bld0000F', 'Module KMO-3', 'Processor A', 'Copyright FOO(C)2013', 'TXT AAA0AAA0']

['PN 050000-000', 'Ver 8.09Bld0000F', 'Module KMO-3', 'Processor B', 'Copyright FOO(C)2013', 'TXT ABB0ABB0']

['PN 050000-000', 'Ver 8.09Bld0000F', 'Module KMO-3', 'Processor C', 'Copyright FOO(C)2013', 'TXT BCC0BCC0']

['HPN 202551-001', 'Ver 1.1', 'Module CDU', 'Processor DF123000', 'Ref U2', 'Copyright FOO(C)2013', 'Datecode 060808']
Boot Information
['PN 072000-000', 'Ver 5.12Bld002', 'Module FOO-3', 'Processor A', 'Copyright FOO(C)2012', 'TXT  DCC0DCC0']

['PN 072000-000', 'Ver 5.12Bld002', 'Module FOO-3', 'Processor B', 'Copyright FOO(C)2012', 'TXT  EFF0EFF0']

['PN 072000-000', 'Ver 5.12Bld002', 'Module FOO-3', 'Processor C', 'Copyright FOO(C)2012', 'TXT  EEE0EEE0']
BAR Application
['BAR MAP file not loaded', 'BAR CONFIG file not loaded']
ROK Key Management Configuration
['Encrypted CARR Key (No CARR Key Present)', 'Encrypted CARR TXT (No CARR Key Present)', 'Pending Encrypted CARR Key (No Future CARR Key Present)', 'Pending Encrypted CARR TXT (No Future CARR Key Present)', 'RC2 Key File TXT (No RC2 Key Present)']
Vital Application Information
['Name VVDefault App', 'Index 0', 'EPT TXT 2578', 'EPT Checkin 80DC']
Non-Vital Application Information
['Name BBDefault App', 'Index 0', 'EPT TXT 521D', 'EPT Checkin 64E0']
ROK Vital Configuration
['ROK not configured/build for vital parameters.']
ROK Non-Vital Configuration
['ROK not configured/built for non-vital parameters.']
SNMP General Configuration
['Build incomplete - ZZ2 module may not present.']

我已经在pairs中实现了对几个键值对的解析，并为尚未实现特定解析规则的那些（categories.append()部分）添加了回退。这也成功地将您不想要的行（"SSH>"等）保留在解析输出之外。我希望这会有所帮助。

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