I have loaded a list of 80+ text documents. In each document, there are multiple places where I want to pull information in the following pattern: \\\text\\\. Here I want "text", but do not know how to handle the "\" character in R.
For example, if I try to load a small example as a test I get the following error:
string <- "\\\Ok; front of house rude!\\\"
Error: '\O' is an unrecognized escape in character string starting ""\\\O"
If I change string to "\\\\OK; front of house!\\\\" then I can proceed with a test example, but remember in the loaded text docs, the format is \\\text\\\.
I'm trying to grab the text in between and I get the following error:
str_extract_all(string, "(?<=\\).*(?=\\)")
Error in stri_extract_all_regex(string, pattern, simplify = simplify, :
Incorrectly nested parentheses in regexp pattern. (U_REGEX_MISMATCHED_PAREN)
Just to show that the lookbehind-lookahead combo works:
str_extract_all(string, "(?<=\\;).*(?=\\!)")
[[1]]
[1] " front of house rude"
EDIT:
Again, take the following string and apply str_replace_all:
string <- "\\\\Ok; front of house rude!\\\\"
str_replace_all(string, "\\+", "REPLACE_ME")
# returns the original string rather than replacing the pattern
[1] "\\\\Ok; front of house rude!\\\\"
