java - 使用正则表达式解析

标签 java regex

我有一个字符串

DELIVERY 'AR_ACTDETAIL_UPD' 'AR_DETAIL_UPD'
MODULE TABLE
FILTER 'AR_ACT'
DEFINE UPDN 'UPDATE'
DEFINE REFH 'UPDATE'
DEFINE CIT '5000'
DEFINE TDB 'TARGET'
DEFINE TABLE 'AR_ACTIVITY_DETAIL'
ELEMENTS '"POSTING_PERIOD_SID","POSTING_DATE_SID","ACCTG_DOC_CLSS_SID","CUSTOMER_BLLT_SID","AR_ASSET_ACCNT_SID","CO_CNSLDTN_SID","AR_BSNSS_UNT_SID","LOCAL_CURRENCY_AMT","LCL_CUR_DSCNT_AAMT","LCL_CUR_DSCNT_TAMMT","TAXABLE_AMT","NO_TAXABLE_AMT","NO_FOREIGN_TAXABLE_AMT","TAX_CODE","BEFOREINVOICE_SID","ACCNT_BANK_PAYMENT_SID","GAIN_LOSS_LOC_AMT","LOCAL_OPEN_AMOUNT","FOREIGN_OPEN_AMOUNT"'
ELEDEFINE +3 IFNULL '0'
ELEDEFINE +4 IFNULL '0'
ELEDEFINE +5 IFNULL '0'
ELEDEFINE +6 IFNULL '0'

DELIVERY 'AR_DOC_EXINS' 'AR_DOC_EINS'
MODULE TABLE
FILTER 'AR_DOC_EXTNSN_COLS_INS'
DEFINE UPDATE_DETECTION 'UPDATE'
DEFINE REFRESH 'APPEND'
DEFINE COMMIT '5000'
DEFINE TABLEDB 'TARGET'
DEFINE TABLE 'AR_DOC_EXTNSN_COLS'
ELEMENTS '"AR_ACTVSID","DOCUMENT_CO_CD","TRANSACTION_TYP_CD","TRANSACTION_NO","DOCUMENT_SUFFIX_NO","DOC_SFFX_EXTT_NO","INVOICE_MULT","PAYMENT_MULT","ADJUSTMENT_MULT","BAD_DEBT_MULT","SOURCE_INFO","CHG_INVC_PY_STTS_IND","CHG_GROUP_CURRENCY_AMT","CHG_GRP_CUR_DSCNT_AAMT","CHG_GRP_CUR_DSCNT_TAMT","CREATED_DT","CHANGED_DT","ACCOUNT_ID","FI_ACCOUNT_ID"'
ELEDEFINE +2 IFNULL '{$U_DEFAULT_SHORT_CHAR}'
ELEDEFINE +3 IFNULL '{$U_DEFAULT_SHORT_CHAR}'

DELIVERY 'AR_DOC_EXS_UPD' 'AR_DOC__UPD'
MODULE TABLE
FILTER 'AR_DOC_EXTNSN_COLS_UPD'
DEFINE UPDATE_DETECTION 'UPDATE'
DEFINE REFRESH 'UPDATE'
DEFINE COMMIT '5000'
DEFINE TABLEDB 'TARGET'
DEFINE TABLE 'AR_DOC_EOLS'
ELEMENTS '"DOCUMENT_CO_CD","TRANSACTION_TYP_CD","TRANSACTION_NO","DOCUMENT_SUFFIX_NO","DOC_SFFX_EXTNSN_NO","PAYMENT_ID","PAYMETED_DT","CHANGED_DT","AR_ACTVTY_DOC_SID_TMP","ACCOUNT_ID","FI_ACCOUNT_ID","O_GROUP_CURRENCY_AMT","O_GRP_CUR_DSCNT_TAMT","O_GRP_CUR_DSCNT_AAMT"'
ELEDEFINE +1 IFNULL '{$U_DEFAULT_SHORT_CHAR}'
ELEDEFINE +2 IFNULL '{$U_DEFAULT_SHORT_CHAR}'
ELEDEFINE +3 IFNULL '{$U_DEFAULT_NUMBER}'

ALLOW DUPLICATES

交付数量未知，但如果我发现 ALLOW 或 REJECT 或 MERGE 或 AGGREGATE 那是意味着没有更多的交付。我的想法是将每个 DELIVERY 源代码分开(这是两个交付之间存在的子字符串或交付与这些词之一之间存在的子字符串(ALLOW，REJECT，MERGE，AGGREGATE))所以尝试了这个模式:

Pattern p = Pattern.compile("DELIVERY\\s.*?[\\nDELIVERY|\\nALLOW|\\nREJECT|\\nMERGE|\\nAGGREGATE]?",Pattern.DOTALL);

但它对我不起作用。

最佳答案

描述

此正则表达式将捕获示例文本中的三个交付中的每一个

^delivery(?:'[^']*'|.)*?^(?=delivery|aggregate|reject|allow|merge)

enter image description here

例子

DELIVERY 'AR_ACTDETAIL_UPD' 'AR_DETAIL_UPD'
MODULE TABLE
FILTER 'AR_ACT'
DEFINE UPDN 'UPDATE'
DEFINE REFH 'UPDATE'
DEFINE CIT '5000'
DEFINE TDB 'TARGET'
DEFINE TABLE 'AR_ACTIVITY_DETAIL'
ELEMENTS '"POSTING_PERIOD_SID","POSTING_DATE_SID","ACCTG_DOC_CLSS_SID","CUSTOMER_BLLT_SID","AR_ASSET_ACCNT_SID","CO_CNSLDTN_SID","AR_BSNSS_UNT_SID","LOCAL_CURRENCY_AMT","LCL_CUR_DSCNT_AAMT","LCL_CUR_DSCNT_TAMMT","TAXABLE_AMT","NO_TAXABLE_AMT","NO_FOREIGN_TAXABLE_AMT","TAX_CODE","BEFOREINVOICE_SID","ACCNT_BANK_PAYMENT_SID","GAIN_LOSS_LOC_AMT","LOCAL_OPEN_AMOUNT","FOREIGN_OPEN_AMOUNT"'
ELEDEFINE +3 IFNULL '0'
ELEDEFINE +4 IFNULL '0'
ELEDEFINE +5 IFNULL '0'
ELEDEFINE +6 IFNULL '0'

DELIVERY 'AR_DOC_EXINS' 'AR_DOC_EINS'
MODULE TABLE
FILTER 'AR_DOC_EXTNSN_COLS_INS'
DEFINE UPDATE_DETECTION 'UPDATE'
DEFINE REFRESH 'APPEND'
DEFINE COMMIT '5000'
DEFINE TABLEDB 'TARGET'
DEFINE TABLE 'AR_DOC_EXTNSN_COLS'
ELEMENTS '"AR_ACTVSID","DOCUMENT_CO_CD","TRANSACTION_TYP_CD","TRANSACTION_NO","DOCUMENT_SUFFIX_NO","DOC_SFFX_EXTT_NO","INVOICE_MULT","PAYMENT_MULT","ADJUSTMENT_MULT","BAD_DEBT_MULT","SOURCE_INFO","CHG_INVC_PY_STTS_IND","CHG_GROUP_CURRENCY_AMT","CHG_GRP_CUR_DSCNT_AAMT","CHG_GRP_CUR_DSCNT_TAMT","CREATED_DT","CHANGED_DT","ACCOUNT_ID","FI_ACCOUNT_ID"'
ELEDEFINE +2 IFNULL '{$U_DEFAULT_SHORT_CHAR}'
ELEDEFINE +3 IFNULL '{$U_DEFAULT_SHORT_CHAR}'

DELIVERY 'AR_DOC_EXS_UPD' 'AR_DOC__UPD'
MODULE TABLE
FILTER 'AR_DOC_EXTNSN_COLS_UPD'
DEFINE UPDATE_DETECTION 'UPDATE'
DEFINE REFRESH 'UPDATE'
DEFINE COMMIT '5000'
DEFINE TABLEDB 'TARGET'
DEFINE TABLE 'AR_DOC_EOLS'
ELEMENTS '"DOCUMENT_CO_CD","TRANSACTION_TYP_CD","TRANSACTION_NO","DOCUMENT_SUFFIX_NO","DOC_SFFX_EXTNSN_NO","PAYMENT_ID","PAYMETED_DT","CHANGED_DT","AR_ACTVTY_DOC_SID_TMP","ACCOUNT_ID","FI_ACCOUNT_ID","O_GROUP_CURRENCY_AMT","O_GRP_CUR_DSCNT_TAMT","O_GRP_CUR_DSCNT_AAMT"'
ELEDEFINE +1 IFNULL '{$U_DEFAULT_SHORT_CHAR}'
ELEDEFINE +2 IFNULL '{$U_DEFAULT_SHORT_CHAR}'
ELEDEFINE +3 IFNULL '{$U_DEFAULT_NUMBER}'

ALLOW DUPLICATES

代码

import java.util.regex.Pattern;
import java.util.regex.Matcher;
class Module1{
  public static void main(String[] asd){
  String sourcestring = "source string to match with pattern";
  Pattern re = Pattern.compile("^delivery(?:'[^']*'|.)*?^(?=delivery|aggregate|reject|allow|merge)",Pattern.CASE_INSENSITIVE | Pattern.MULTILINE | Pattern.DOTALL);
  Matcher m = re.matcher(sourcestring);
  int mIdx = 0;
    while (m.find()){
      for( int groupIdx = 0; groupIdx < m.groupCount()+1; groupIdx++ ){
        System.out.println( "[" + mIdx + "][" + groupIdx + "] = " + m.group(groupIdx));
      }
      mIdx++;
    }
  }
}

匹配

[0][0] = DELIVERY 'AR_ACTDETAIL_UPD' 'AR_DETAIL_UPD'
MODULE TABLE
FILTER 'AR_ACT'
DEFINE UPDN 'UPDATE'
DEFINE REFH 'UPDATE'
DEFINE CIT '5000'
DEFINE TDB 'TARGET'
DEFINE TABLE 'AR_ACTIVITY_DETAIL'
ELEMENTS '"POSTING_PERIOD_SID","POSTING_DATE_SID","ACCTG_DOC_CLSS_SID","CUSTOMER_BLLT_SID","AR_ASSET_ACCNT_SID","CO_CNSLDTN_SID","AR_BSNSS_UNT_SID","LOCAL_CURRENCY_AMT","LCL_CUR_DSCNT_AAMT","LCL_CUR_DSCNT_TAMMT","TAXABLE_AMT","NO_TAXABLE_AMT","NO_FOREIGN_TAXABLE_AMT","TAX_CODE","BEFOREINVOICE_SID","ACCNT_BANK_PAYMENT_SID","GAIN_LOSS_LOC_AMT","LOCAL_OPEN_AMOUNT","FOREIGN_OPEN_AMOUNT"'
ELEDEFINE +3 IFNULL '0'
ELEDEFINE +4 IFNULL '0'
ELEDEFINE +5 IFNULL '0'
ELEDEFINE +6 IFNULL '0'


[1][0] = DELIVERY 'AR_DOC_EXINS' 'AR_DOC_EINS'
MODULE TABLE
FILTER 'AR_DOC_EXTNSN_COLS_INS'
DEFINE UPDATE_DETECTION 'UPDATE'
DEFINE REFRESH 'APPEND'
DEFINE COMMIT '5000'
DEFINE TABLEDB 'TARGET'
DEFINE TABLE 'AR_DOC_EXTNSN_COLS'
ELEMENTS '"AR_ACTVSID","DOCUMENT_CO_CD","TRANSACTION_TYP_CD","TRANSACTION_NO","DOCUMENT_SUFFIX_NO","DOC_SFFX_EXTT_NO","INVOICE_MULT","PAYMENT_MULT","ADJUSTMENT_MULT","BAD_DEBT_MULT","SOURCE_INFO","CHG_INVC_PY_STTS_IND","CHG_GROUP_CURRENCY_AMT","CHG_GRP_CUR_DSCNT_AAMT","CHG_GRP_CUR_DSCNT_TAMT","CREATED_DT","CHANGED_DT","ACCOUNT_ID","FI_ACCOUNT_ID"'
ELEDEFINE +2 IFNULL '{$U_DEFAULT_SHORT_CHAR}'
ELEDEFINE +3 IFNULL '{$U_DEFAULT_SHORT_CHAR}'


[2][0] = DELIVERY 'AR_DOC_EXS_UPD' 'AR_DOC__UPD'
MODULE TABLE
FILTER 'AR_DOC_EXTNSN_COLS_UPD'
DEFINE UPDATE_DETECTION 'UPDATE'
DEFINE REFRESH 'UPDATE'
DEFINE COMMIT '5000'
DEFINE TABLEDB 'TARGET'
DEFINE TABLE 'AR_DOC_EOLS'
ELEMENTS '"DOCUMENT_CO_CD","TRANSACTION_TYP_CD","TRANSACTION_NO","DOCUMENT_SUFFIX_NO","DOC_SFFX_EXTNSN_NO","PAYMENT_ID","PAYMETED_DT","CHANGED_DT","AR_ACTVTY_DOC_SID_TMP","ACCOUNT_ID","FI_ACCOUNT_ID","O_GROUP_CURRENCY_AMT","O_GRP_CUR_DSCNT_TAMT","O_GRP_CUR_DSCNT_AAMT"'
ELEDEFINE +1 IFNULL '{$U_DEFAULT_SHORT_CHAR}'
ELEDEFINE +2 IFNULL '{$U_DEFAULT_SHORT_CHAR}'
ELEDEFINE +3 IFNULL '{$U_DEFAULT_NUMBER}'

关于java - 使用正则表达式解析，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/17546425/

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