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Message-ID: <CAPRGo-m6PhxNRXE+ZHAhZFxfS6myt7xGymwODR7Fs0Ch91GrGg@mail.gmail.com>
Date: 2017-09-28T20:25:36Z
From: Dan Abner
Subject: Searching for Enumerated Items using str_count() from the stringr package

Hi all,

I have a large number of text strings to search for enumerated items.
However, I am receiving this error message even though I thought that I
properly escaped the special character closed parenthesis:


> Count<-str_count(text3,keywords)
Error in stri_count_regex(string, pattern, opts_regex = opts(pattern)) :
  Syntax error in regexp pattern. (U_REGEX_RULE_SYNTAX)


===

Here is example code:


text1<-"This is a list:
1) Number 1
2) Etc
3) Etc"

text2<-"This is NOT a list:
Blah, blah, blah
Blah, blah, blah"

text3<-c(text1,text2)
text3

{keywords<-c(paste(0:9,"\\)"),paste(0:9,"\\)",sep=""),
paste(0:9,"."),paste(0:9,".",sep=""),"-","*")}

keywords

Count<-str_count(text3,keywords)

===

I am looking for Count<-c(3,0)

Any suggestions?

Thanks!

Dan

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