如何在 Python 中匹配后抓取所有行

Question

I am very new to Python and I saw a post here: How to grab the lines AFTER a matched line in python

I have a file that has data in the following format: DEFINE JOBPARM ID=(ns_ppprtg_notify,nj_pprtd028_notify,0028)

SUBFILE='/sybods/prod/ca_scripts/ca_notify.ksh' SUBUSER=pbods SUBPASS=*PASSWORD*

I am attempting to extract each parameter so that I can construct the full command line.

Here is what I have so far:

with open(myExtract) as Extract:
    for line in Extract:

        currentLine = line.strip("\n").strip()

        if currentLine.startswith("DEFINE JOBPARM ID=") or \
                currentLine.contains("PARM")):

            logger.info("Job Parameter line found")

            if "DEFINE JOBPARM ID=" in currentLine:
                tJobParmString = currentLine.partition("DEFINE JOBPARM ID=")[2].parition("SUBFILE")[0].strip()
                tSubFileString = currentLine.partition("SUBFILE")[2].partition("SUBUSER")[0].strip()
                tSubUserString = currentLine.partition("SUBUSER")[2].partition("SUBPASS")[0].strip()

                if re.match(" PARM", currentLine, flags=0):
                    logger.info("PARM line found")

This is where I am stuck... I don't know for sure that there will be 2 PARM lines or 10. They all start with " PARM" and have numbers. How do I extract the values for PARM1, PARM2, PARM3 etc? Each of the PARM lines (PARM1, PARM2) always starts on a new line.

Any pointers would be appreciated.

Answer 1

Here you go mate. Here's my attempt at your problem. I've given you three options in the data structure layout; outDict which maps the PARMs to the strings; outListOfTups which gives you the same data as a list of tuples; and outList which assumes you're not interested in the PARMS:

f = open("data.txt", 'r')
lines = f.read().splitlines()
outDict = {}
outListOfTups = []
outList = []

for line in lines:
    if line.startswith('PARM'):
        splitPoint = line.find("'")
        name = line[:splitPoint-1]
        string = line[splitPoint:].replace("'", "")
        outDict[name] = string #if you want to work with dict
        outListOfTups.append((name, string)) #if you want lists
        outList.append(string)

print(outDict)
print(outList)
print(outListOfTups)

Let me know if I've misunderstood where you're coming from - this works for me on the input sample given.

Answer 2

if("DEFINE JOBPARM ID=" in currentLine):
                tJobParmString=currentLine.partition("DEFINE JOBPARM ID=")[2].partition("SUBFILE")[0].strip()
                tSubFileString=currentLine.partition("SUBFILE")[2].partition("SUBUSER")[0].strip()
                tSubUserString=currentLine.partition("SUBUSER")[2].partition("SUBPASS")[0].strip()
            if(re.match("PARM",currentLine,flags=0)):
                logger.info("PARM line found")
                tParmString=currentLine.partition("=")[2].strip()
                logger.info(tParmString)
                if(not "PARM" in currentLine):
                    continue