Ruby 仅匹配匹配块（如果匹配块前面出现起始词，则忽略）

我的意见如下：

输入

StatusMsg:
seqId: 14043
timestamp: 140707
dId: "Sa01"
msgType: SEQUENCE
eventType: UPDATE_CMD
devContext {
   context: IDLE
   operationalMode: 1
   logHistory {
      start: 1404387563607
      end: 1404387563616
   }
}
manifest {
   timestamp: 1404387733059
   dev {
      dId: "Sa01"
      mainComponent {
         serialNum: "10001"
         deviceClass: "Sap"
         componentType: "Sa01"
         subcomponentNum: 1
      }
   }
   info {
      name: "Sa01"
      channels: 1
      lib {
         name: "l.bin"
         timestamp: 1404387733059
         version: "6870711ee"
         validStartDate: 1404387733059
      }
      activeSW {
         name: "Sa01"
         timestamp: 1404387733059
         version: "12.001"
         validStartDate: 1404387733059
      }
      activeCSW {
         name: "Sa01"
         timestamp: 1404387733059
         version: "03.001"
         validStartDate: 1404387733059
      }
   }
}
powerStatus {
   powerEvent: ON
   powerSource: AC
   chargerStatus: CHARGING
   batteryStatus: GOOD
}
status {
   msgHeader {
      messageId: 13
      timestamp: 1404387733059
      seqNum: 13
      sourceId: 13
      numOfParams: 0
   }
   infuserState: READY
   keypadLockout: UNLOCKED
}
cmdResponse {
   cmdType: A_PGM
   aPgm {
      dId: "Sa01"
      refId: 79
      request {
         refId: 79
         libId: "6870711eedb"
         channelId: 1
         lId: 1
         pgmType: FULL
         aPgmType: NEW
         externalId: "EXT_ID_9"
         stats {
            WG: 76230
            HG: 150500
            BS: 1790
         }
         multi: false
      }
      response {
         dId: "Sa01"
         files: 1.bin
         major: 338013710701
         status: Received
      }
   }
}
[2014-07-07 14:10:41.034] I/O Received
StatusMsg:
seqId: 14043
timestamp: 140707
dId: "Sa01"
msgType: SEQUENCE
eventType: UPDATE_CMD
devContext {
   context: IDLE
   operationalMode: 1
   logHistory {
      start: 1404387563607
      end: 1404387563616
   }
}
manifest {
   timestamp: 1404387733059
   dev {
      dId: "Sa01"
      mainComponent {
         serialNum: "10001"
         deviceClass: "Sap"
         componentType: "Sa01"
         subcomponentNum: 1
      }
   }
   info {
      name: "Sa01"
      channels: 1
      lib {
         name: "l.bin"
         timestamp: 1404387733059
         version: "6870711ee"
         validStartDate: 1404387733059
      }
      activeSW {
         name: "Sa01"
         timestamp: 1404387733059
         version: "12.001"
         validStartDate: 1404387733059
      }
      activeCSW {
         name: "Sa01"
         timestamp: 1404387733059
         version: "03.001"
         validStartDate: 1404387733059
      }
   }
}
powerStatus {
   powerEvent: ON
   powerSource: AC
   chargerStatus: CHARGING
   batteryStatus: GOOD
}
status {
   msgHeader {
      messageId: 13
      timestamp: 1404387733059
      seqNum: 13
      sourceId: 13
      numOfParams: 0
   }
   infuserState: READY
   keypadLockout: UNLOCKED
}
cmdResponse {
   cmdType: A_PGM
   aPgm {
      dId: "Sa01"
      refId: 79
      request {
         refId: 79
         libId: "6870711eedb"
         channelId: 1
         lId: 1
         pgmType: FULL
         aPgmType: NEW
         externalId: "EXT_ID_9"
         stats {
            WG: 76230
            HG: 150500
            BS: 1790
         }
         multi: false
      }
      response {
         dId: "Sa01"
         files: 1.bin
         major: 35723057325
         status: Valid
      }
   }
}
[2014-07-07 14:15:71.028] I/O Received
StatusMsg:
seqId: 14043
timestamp: 140707
dId: "Sa01"
msgType: SEQUENCE
eventType: UPDATE_CMD
devContext {
   context: IDLE
   operationalMode: 1
   logHistory {
      start: 1404387563607
      end: 1404387563616
   }
}
manifest {
   timestamp: 1404387733059
   dev {
      dId: "Sa01"
      mainComponent {
         serialNum: "10001"
         deviceClass: "Sap"
         componentType: "Sa01"
         subcomponentNum: 1
      }
   }
   info {
      name: "Sa01"
      channels: 1
      lib {
         name: "l.bin"
         timestamp: 1404387733059
         version: "6870711ee"
         validStartDate: 1404387733059
      }
      activeSW {
         name: "Sa01"
         timestamp: 1404387733059
         version: "12.001"
         validStartDate: 1404387733059
      }
      activeCSW {
         name: "Sa01"
         timestamp: 1404387733059
         version: "03.001"
         validStartDate: 1404387733059
      }
   }
}
powerStatus {
   powerEvent: ON
   powerSource: AC
   chargerStatus: CHARGING
   batteryStatus: GOOD
}
status {
   msgHeader {
      messageId: 13
      timestamp: 1404387733059
      seqNum: 13
      sourceId: 13
      numOfParams: 0
   }
   infuserState: READY
   keypadLockout: UNLOCKED
}
cmdResponse {
   cmdType: A_PGM
   aPgm {
      dId: "Sa01"
      refId: 79
      request {
         refId: 79
         libId: "6870711eedb"
         channelId: 1
         lId: 1
         pgmType: FULL
         aPgmType: NEW
         externalId: "EXT_ID_9"
         stats {
            WG: 76230
            HG: 150500
            BS: 1790
         }
         multi: false
      }
      response {
         dId: "Sa01"
         files: 1.bin
         major: 27151510570
         status: Accepted
      }
   }
}
[2014-07-07 14:15:51.034] I/O Received
StatusMsg:
seqId: 14043
timestamp: 140707
dId: "Sa01"
msgType: SEQUENCE
eventType: UPDATE_CMD
devContext {
   context: IDLE
   operationalMode: 1
   logHistory {
      start: 1404387563607
      end: 1404387563616
   }
}
manifest {
   timestamp: 1404387733059
   dev {
      dId: "Sa01"
      mainComponent {
         serialNum: "10001"
         deviceClass: "Sap"
         componentType: "Sa01"
         subcomponentNum: 1
      }
   }
   info {
      name: "Sa01"
      channels: 1
      lib {
         name: "l.bin"
         timestamp: 1404387733059
         version: "6870711ee"
         validStartDate: 1404387733059
      }
      activeSW {
         name: "Sa01"
         timestamp: 1404387733059
         version: "12.001"
         validStartDate: 1404387733059
      }
      activeCSW {
         name: "Sa01"
         timestamp: 1404387733059
         version: "03.001"
         validStartDate: 1404387733059
      }
   }
}
powerStatus {
   powerEvent: ON
   powerSource: AC
   chargerStatus: CHARGING
   batteryStatus: GOOD
}
status {
   msgHeader {
      messageId: 13
      timestamp: 1404387733059
      seqNum: 13
      sourceId: 13
      numOfParams: 0
   }
   infuserState: READY
   keypadLockout: UNLOCKED
}
cmdResponse {
   cmdType: A_PGM
   aPgm {
      dId: "Sa01"
      refId: 79
      request {
         refId: 79
         libId: "6870711eedb"
         channelId: 1
         lId: 1
         pgmType: FULL
         aPgmType: NEW
         externalId: "EXT_ID_9"
         stats {
            WG: 76230
            HG: 150500
            BS: 1790
         }
         multi: false
      }
      response {
         dId: "Sa01"
         files: 1.bin
         major: 35723057325
         status: Valid
      }
   }
}

StatusMsg:
seqId: 14043
timestamp: 140707
dId: "Sa01"
msgType: SEQUENCE
eventType: UPDATE_CMD
devContext {
   context: IDLE
   operationalMode: 1
   logHistory {
      start: 1404387563607
      end: 1404387563616
   }
}
manifest {
   timestamp: 1404387733059
   dev {
      dId: "Sa01"
      mainComponent {
         serialNum: "10001"
         deviceClass: "Sap"
         componentType: "Sa01"
         subcomponentNum: 1
      }
   }
   info {
      name: "Sa01"
      channels: 1
      lib {
         name: "l.bin"
         timestamp: 1404387733059
         version: "6870711ee"
         validStartDate: 1404387733059
      }
      activeSW {
         name: "Sa01"
         timestamp: 1404387733059
         version: "12.001"
         validStartDate: 1404387733059
      }
      activeCSW {
         name: "Sa01"
         timestamp: 1404387733059
         version: "03.001"
         validStartDate: 1404387733059
      }
   }
}
powerStatus {
   powerEvent: ON
   powerSource: AC
   chargerStatus: CHARGING
   batteryStatus: GOOD
}
status {
   msgHeader {
      messageId: 13
      timestamp: 1404387733059
      seqNum: 13
      sourceId: 13
      numOfParams: 0
   }
   infuserState: READY
   keypadLockout: UNLOCKED
}
cmdResponse {
   cmdType: A_PGM
   aPgm {
      dId: "Sa01"
      refId: 79
      request {
         refId: 79
         libId: "6870711eedb"
         channelId: 1
         lId: 1
         pgmType: FULL
         aPgmType: NEW
         externalId: "EXT_ID_9"
         stats {
            WG: 76230
            HG: 150500
            BS: 1790
         }
         multi: false
      }
      response {
         dId: "Sa01"
         files: 1.bin
         major: 27151510570
         status: Accepted
      }
   }
}

我想确保以下内容必须以相同的顺序出现在输入中：

StatusMsg:
dId: "Sa01"
eventType: UPDATE_CMD
cmdResponse
cmdType: A_PGM
response
dId: "Sa01"
status: Accepted

预期产出

StatusMsg:
seqId: 14043
timestamp: 140707
dId: "Sa01"
msgType: SEQUENCE
eventType: UPDATE_CMD
devContext {
   context: IDLE
   operationalMode: 1
   logHistory {
      start: 1404387563607
      end: 1404387563616
   }
}
manifest {
   timestamp: 1404387733059
   dev {
      dId: "Sa01"
      mainComponent {
         serialNum: "10001"
         deviceClass: "Sap"
         componentType: "Sa01"
         subcomponentNum: 1
      }
   }
   info {
      name: "Sa01"
      channels: 1
      lib {
         name: "l.bin"
         timestamp: 1404387733059
         version: "6870711ee"
         validStartDate: 1404387733059
      }
      activeSW {
         name: "Sa01"
         timestamp: 1404387733059
         version: "12.001"
         validStartDate: 1404387733059
      }
      activeCSW {
         name: "Sa01"
         timestamp: 1404387733059
         version: "03.001"
         validStartDate: 1404387733059
      }
   }
}
powerStatus {
   powerEvent: ON
   powerSource: AC
   chargerStatus: CHARGING
   batteryStatus: GOOD
}
status {
   msgHeader {
      messageId: 13
      timestamp: 1404387733059
      seqNum: 13
      sourceId: 13
      numOfParams: 0
   }
   infuserState: READY
   keypadLockout: UNLOCKED
}
cmdResponse {
   cmdType: A_PGM
   aPgm {
      dId: "Sa01"
      refId: 79
      request {
         refId: 79
         libId: "6870711eedb"
         channelId: 1
         lId: 1
         pgmType: FULL
         aPgmType: NEW
         externalId: "EXT_ID_9"
         stats {
            WG: 76230
            HG: 150500
            BS: 1790
         }
         multi: false
      }
      response {
         dId: "Sa01"
         files: 1.bin
         major: 338013710701
         status: Received
      }
   }
}
[2014-07-07 14:10:41.034] I/O Received
StatusMsg:
seqId: 14043
timestamp: 140707
dId: "Sa01"
msgType: SEQUENCE
eventType: UPDATE_CMD
devContext {
   context: IDLE
   operationalMode: 1
   logHistory {
      start: 1404387563607
      end: 1404387563616
   }
}
manifest {
   timestamp: 1404387733059
   dev {
      dId: "Sa01"
      mainComponent {
         serialNum: "10001"
         deviceClass: "Sap"
         componentType: "Sa01"
         subcomponentNum: 1
      }
   }
   info {
      name: "Sa01"
      channels: 1
      lib {
         name: "l.bin"
         timestamp: 1404387733059
         version: "6870711ee"
         validStartDate: 1404387733059
      }
      activeSW {
         name: "Sa01"
         timestamp: 1404387733059
         version: "12.001"
         validStartDate: 1404387733059
      }
      activeCSW {
         name: "Sa01"
         timestamp: 1404387733059
         version: "03.001"
         validStartDate: 1404387733059
      }
   }
}
powerStatus {
   powerEvent: ON
   powerSource: AC
   chargerStatus: CHARGING
   batteryStatus: GOOD
}
status {
   msgHeader {
      messageId: 13
      timestamp: 1404387733059
      seqNum: 13
      sourceId: 13
      numOfParams: 0
   }
   infuserState: READY
   keypadLockout: UNLOCKED
}
cmdResponse {
   cmdType: A_PGM
   aPgm {
      dId: "Sa01"
      refId: 79
      request {
         refId: 79
         libId: "6870711eedb"
         channelId: 1
         lId: 1
         pgmType: FULL
         aPgmType: NEW
         externalId: "EXT_ID_9"
         stats {
            WG: 76230
            HG: 150500
            BS: 1790
         }
         multi: false
      }
      response {
         dId: "Sa01"
         files: 1.bin
         major: 35723057325
         status: Valid
      }
   }
}
[2014-07-07 14:15:71.028] I/O Received
StatusMsg:
seqId: 14043
timestamp: 140707
dId: "Sa01"
msgType: SEQUENCE
eventType: UPDATE_CMD
devContext {
   context: IDLE
   operationalMode: 1
   logHistory {
      start: 1404387563607
      end: 1404387563616
   }
}
manifest {
   timestamp: 1404387733059
   dev {
      dId: "Sa01"
      mainComponent {
         serialNum: "10001"
         deviceClass: "Sap"
         componentType: "Sa01"
         subcomponentNum: 1
      }
   }
   info {
      name: "Sa01"
      channels: 1
      lib {
         name: "l.bin"
         timestamp: 1404387733059
         version: "6870711ee"
         validStartDate: 1404387733059
      }
      activeSW {
         name: "Sa01"
         timestamp: 1404387733059
         version: "12.001"
         validStartDate: 1404387733059
      }
      activeCSW {
         name: "Sa01"
         timestamp: 1404387733059
         version: "03.001"
         validStartDate: 1404387733059
      }
   }
}
powerStatus {
   powerEvent: ON
   powerSource: AC
   chargerStatus: CHARGING
   batteryStatus: GOOD
}
status {
   msgHeader {
      messageId: 13
      timestamp: 1404387733059
      seqNum: 13
      sourceId: 13
      numOfParams: 0
   }
   infuserState: READY
   keypadLockout: UNLOCKED
}
cmdResponse {
   cmdType: A_PGM
   aPgm {
      dId: "Sa01"
      refId: 79
      request {
         refId: 79
         libId: "6870711eedb"
         channelId: 1
         lId: 1
         pgmType: FULL
         aPgmType: NEW
         externalId: "EXT_ID_9"
         stats {
            WG: 76230
            HG: 150500
            BS: 1790
         }
         multi: false
      }
      response {
         dId: "Sa01"
         files: 1.bin
         major: 27151510570
         status: Accepted
      }
   }
}
[2014-07-07 14:15:51.034] I/O Received
StatusMsg:
seqId: 14043
timestamp: 140707
dId: "Sa01"
msgType: SEQUENCE
eventType: UPDATE_CMD
devContext {
   context: IDLE
   operationalMode: 1
   logHistory {
      start: 1404387563607
      end: 1404387563616
   }
}
manifest {
   timestamp: 1404387733059
   dev {
      dId: "Sa01"
      mainComponent {
         serialNum: "10001"
         deviceClass: "Sap"
         componentType: "Sa01"
         subcomponentNum: 1
      }
   }
   info {
      name: "Sa01"
      channels: 1
      lib {
         name: "l.bin"
         timestamp: 1404387733059
         version: "6870711ee"
         validStartDate: 1404387733059
      }
      activeSW {
         name: "Sa01"
         timestamp: 1404387733059
         version: "12.001"
         validStartDate: 1404387733059
      }
      activeCSW {
         name: "Sa01"
         timestamp: 1404387733059
         version: "03.001"
         validStartDate: 1404387733059
      }
   }
}
powerStatus {
   powerEvent: ON
   powerSource: AC
   chargerStatus: CHARGING
   batteryStatus: GOOD
}
status {
   msgHeader {
      messageId: 13
      timestamp: 1404387733059
      seqNum: 13
      sourceId: 13
      numOfParams: 0
   }
   infuserState: READY
   keypadLockout: UNLOCKED
}
cmdResponse {
   cmdType: A_PGM
   aPgm {
      dId: "Sa01"
      refId: 79
      request {
         refId: 79
         libId: "6870711eedb"
         channelId: 1
         lId: 1
         pgmType: FULL
         aPgmType: NEW
         externalId: "EXT_ID_9"
         stats {
            WG: 76230
            HG: 150500
            BS: 1790
         }
         multi: false
      }
      response {
         dId: "Sa01"
         files: 1.bin
         major: 35723057325
         status: Valid
      }
   }
}

StatusMsg:
seqId: 14043
timestamp: 140707
dId: "Sa01"
msgType: SEQUENCE
eventType: UPDATE_CMD
devContext {
   context: IDLE
   operationalMode: 1
   logHistory {
      start: 1404387563607
      end: 1404387563616
   }
}
manifest {
   timestamp: 1404387733059
   dev {
      dId: "Sa01"
      mainComponent {
         serialNum: "10001"
         deviceClass: "Sap"
         componentType: "Sa01"
         subcomponentNum: 1
      }
   }
   info {
      name: "Sa01"
      channels: 1
      lib {
         name: "l.bin"
         timestamp: 1404387733059
         version: "6870711ee"
         validStartDate: 1404387733059
      }
      activeSW {
         name: "Sa01"
         timestamp: 1404387733059
         version: "12.001"
         validStartDate: 1404387733059
      }
      activeCSW {
         name: "Sa01"
         timestamp: 1404387733059
         version: "03.001"
         validStartDate: 1404387733059
      }
   }
}
powerStatus {
   powerEvent: ON
   powerSource: AC
   chargerStatus: CHARGING
   batteryStatus: GOOD
}
status {
   msgHeader {
      messageId: 13
      timestamp: 1404387733059
      seqNum: 13
      sourceId: 13
      numOfParams: 0
   }
   infuserState: READY
   keypadLockout: UNLOCKED
}
cmdResponse {
   cmdType: A_PGM
   aPgm {
      dId: "Sa01"
      refId: 79
      request {
         refId: 79
         libId: "6870711eedb"
         channelId: 1
         lId: 1
         pgmType: FULL
         aPgmType: NEW
         externalId: "EXT_ID_9"
         stats {
            WG: 76230
            HG: 150500
            BS: 1790
         }
         multi: false
      }
      response {
         dId: "Sa01"
         files: 1.bin
         major: 27151510570
         status: Accepted
      }
   }
}

我试着用正则表达式

(StatusMsg:.*?dId:\s*"Sa01".*?eventType: UPDATE_CMD.*?response\s*{[\s\n\w\.:]*dId:\s*"Sa01"[\s\n\w\.:]*status:\s*Accepted)

---

上述表达式从第一个StatusMsg到Accepted进行选择。有人能帮助构建正确的正则表达式吗？

您只需要对正则表达式做一点小的更改就可以做到这一点。注意，对于正则表达式，您还需要在末尾使用

m

标志

更新的正则表达式：

/(StatusMsg:(?!.*StatusMsg:).*?dId:\s*"Sa01".*?eventType: UPDATE_CMD.*?response\s*{[\s\n\w\.:]*dId:\s*"Sa01"[\s\n\w\.:]*status:\s*Accepted)/m

注意：对于使用rubular进行测试，请在开始处去掉

/

，在结束处去掉

/m

，然后将

m

放在输入正则表达式的文本框右侧的小文本框中。这将设置要应用的

m

标志，其作用是使正则表达式中的

匹配换行符（不是默认行为）

唯一改变的是

StatusMsg:.*？

变成

StatusMsg:（？！.*StatusMsg:）.*？

这适用于负面外观。这实际上是告诉您的正则表达式仅在正则表达式匹配的地方匹配，但仅当匹配不包含两个字符串批时才匹配

StatusMsg

如果

StatusMsg

总是出现在行首，前面没有空格，您可以通过执行以下操作使其更加具体：

---

^StatusMsg:（？！.*^StatusMsg:）.*？

感谢您提供的解决方案。只有当匹配的部分位于输入的最后一部分时，您的解决方案才有效。我已经修改了输入，因此预期的匹配不是最后一组消息。你能帮我选择当前输入的预期匹配项吗？嗯，还没有找到一个纯正则表达式的解决方案；但是您可以通过执行

input\u str.split（/^StatusMsg/）

，然后在数组中的返回对象中迭代搜索所需的模式来简化操作。有人找到了这个问题的答案吗