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aslett
2023 Apr 13
1
Split String in regex while Keeping Delimiter
...y function to approximately extract
"non-standard" characters:
### Identify non-ASCII Characters
# beware: the filtering and the sorting may break the codes;
extract.nonLetters = function(x, rm.space = TRUE, sort=FALSE) {
?? ?code = as.numeric(unique(unlist(lapply(x, charToRaw))));
?? ?isLetter =
?? ???? (code >= 97 & code <= 122) |
?? ???? (code >= 65 & code <= 90);
?? ?code = code[ ! isLetter];
?? ?if(rm.space) {
?? ???? # removes only simple space!
?? ???? code = code[code != 32];
?? ?}
?? ?if(sort) code = sort(code);
?? ?return(code);
}
extract.nonLetter...