Message-ID: <5fabd36a-ed1d-4e66-a77f-05e24bc9b0e6@me.com>
Date: 2015-08-12T15:51:12Z
From: Kevin Kowitski
Subject: String Matching
Hey everyone,?
? I have been having an issue trying to find a specific string of text in a log of system messages. ?I have tried to use pmatch, match, and some regular expressions but all to no avail. ?
I have a matrix / data.frame (either one, the file outputs a tens of thousands of rows with a single column) of strings in the following format with different items after INFO:
?"09:11:57.259 - Assay File Processing Thread - INFO - SolenoidCycleMessage: Addr = 0x03 "
as an example I would like to match "SolenoidCycleMessage"
searchString<-"SolenoidCycleMessage"
matchString<-"09:11:57.259 - Assay File Processing Thread - INFO - SolenoidCycleMessage: Addr = 0x03"
> pmatch(searchString, matchString)
[1] NA
> match(searchString, matchString)
[1] NA
> match(matchString, searchString)
[1] NA
> grep(searchString, matchString, ignore.case=FALSE)
[1] 1
> df<-as.data.frame(c(matchString, string1, string2))
> df
? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?c(matchString, string1, string2)
1 09:11:57.259 - Assay File Processing Thread - INFO - SolenoidCycleMessage: Addr = 0x03?
2 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?23:12:43.22 - Test
3 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?test
> grep(searchString, df, ignore.case=FALSE)
integer(0)
> grep(searchString, c(matchString, string1, string2), ignore.case=FALSE)
[1] 1
Doe anyone have some input that could help?
Thanks,?
Kevin