Extract text after a string

Function to extract text after a string

Usage

extractTextAfterString(txt, str)

Arguments

txt

- character vector from which to extract strings

str

- string to extract after (see NOTE under details)

Value

character vector of extracted strings

Details

For each element in the vector, this extracts the string following the `after` string from each element of the input character vector, or `NA` if no `after` string found.

NOTE: Characters with special regex meanings (e.g., ")","]") need to be double-escaped to use in `str`.

Examples

# example code
extractTextAfterString("test:fred[x,y]==0","==");
#> [1] "0"
extractTextAfterString(c("fred[x,y]==0: FALSE","b[z0]: 1"),":");
#> [1] " FALSE" " 1"    
extractTextAfterString("fred[x,y[z]]=0","=");
#> [1] "0"
extractTextAfterString("fred[x,y[z]]=0","\\[");
#> [1] "x,y[z]]=0"
extractTextAfterString("fred[x,y[z]]=0","fred\\[");
#> [1] "x,y[z]]=0"