ruby - regex match one instance of a pattern that repeats -


given following regex

/(500 internal server error)/

how match 1st occurrence of pattern in single string has many repeats of same match?

for example:

match 1 1.  500 internal server error match 2 1.  500 internal server error match 3 1.  500 internal server error

how 1. our answer?

sample text match follows (one big string on purpose)

[soapuimultithreadedhttpconnectionmanager$soapuidefaultclientconnection]     receiving response: http/1.1 500 internal server error12:09:26,638 info [soapuiprotestcaserunner] assertion [match content of [question]] has status valid12:09:26,638 debug [soapuimultithreadedhttpconnectionmanager$soapuidefaultclientconnection] connection 0.0.0.0:41494<->23.6.55.1:80 shut down12:09:26,638 debug [soapuimultithreadedhttpconnectionmanager$soapuidefaultclientconnection] connection 0.0.0.0:41494<->23.6.55.1:80 closed12:09:26,638 info [soapuiprotestcaserunner] finished running soapui testcase [test_fieldsparameter], time taken: 384ms, status: finished12:09:26,640 info [soapuiprotestcaserunner] assertion [match content of [errorcode]] has status valid12:09:26,641 info [soapuiprotestcaserunner] assertion [match content of [message]] has status valid12:09:26,641 info [soapuiprotestcaserunner] assertion [valid http status codes] has status valid12:09:26,641 info [soapuiprotestcaserunner] running step [othersortby]12:09:26,643 debug [httpclientsupport$soapuihttpclient] stale connection check12:09:26,645 debug [httpclientsupport$soapuihttpclient] attempt 1 execute request12:09:26,646 debug [soapuimultithreadedhttpconnectionmanager$soapuidefaultclientconnection] sending request: /api/review/v1/questions?prodid=570043&_sortby=other http/1.112:09:26,666 debug [soapuimultithreadedhttpconnectionmanager$soapuidefaultclientconnection] receiving response: http/1.1 500 internal server error12:09:26,667 debug [soapuimultithreadedhttpconnectionmanager$soapuidefaultclientconnection] connection 0.0.0.0:41475<->23.6.55.1:80 shut down12:09:26,667 debug

please have look, proves string captured first:

str = "match 1\n1.  500 internal server error\nmatch 2\n1.  500 internal server error\nmatch 3\n1.  500 internal server error" re = /(500 internal server error)/ mdata = re.match(str) puts mdata.begin(1) puts mdata

output of sample program proving first occurrence (index of 12 in input string): 

12                                                                                                                                                                   500 internal server error

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