rm_endmark {qdapRegex}R Documentation

Remove/Replace/Extract Endmarks

Description

Remove/replace/extract endmarks from a string.

Usage

rm_endmark(text.var, trim = !extract, clean = TRUE,
  pattern = "@rm_endmark", replacement = "", extract = FALSE,
  dictionary = getOption("regex.library"), ...)

ex_endmark(text.var, trim = !extract, clean = TRUE,
  pattern = "@rm_endmark", replacement = "", extract = TRUE,
  dictionary = getOption("regex.library"), ...)

Arguments

text.var

The text variable.

trim

logical. If TRUE removes leading and trailing white spaces.

clean

trim logical. If TRUE extra white spaces and escaped character will be removed.

pattern

A character string containing a regular expression (or character string for fixed = TRUE) to be matched in the given character vector. Default, @rm_endmark uses the rm_dollar regex from the regular expression dictionary from the dictionary argument.

replacement

Replacement for matched pattern.

extract

logical. If TRUE the endmark strings are extracted into a list of vectors.

dictionary

A dictionary of canned regular expressions to search within if pattern begins with "@rm_".

...

Other arguments passed to gsub.

Details

The default regular expression used by rm_endmark finds endmark punctuation used in the qdap package; this includes ! . ? * AND |. This behavior can be altered (to ; AND : or to use just ! . AND ?) by using a secondary regular expression from the regex_usa data (or other dictionary) via (pattern = "@rm_endmark2" or pattern = "@rm_endmark3"). See Examples for example usage.

Value

Returns a character string with endmarks removed.

See Also

gsub, stri_extract_all_regex

Other rm_ functions: rm_abbreviation, rm_between, rm_bracket, rm_caps_phrase, rm_caps, rm_citation_tex, rm_citation, rm_city_state_zip, rm_city_state, rm_date, rm_default, rm_dollar, rm_email, rm_emoticon, rm_hash, rm_nchar_words, rm_non_ascii, rm_non_words, rm_number, rm_percent, rm_phone, rm_postal_code, rm_repeated_characters, rm_repeated_phrases, rm_repeated_words, rm_tag, rm_time, rm_title_name, rm_url, rm_white, rm_zip

Examples

x <- c("I like the dog.", "I want it *|", "I;", 
    "Who is| that?", "Hello world", "You...")

rm_endmark(x)
ex_endmark(x)

rm_endmark(x, pattern="@rm_endmark2")
ex_endmark(x, pattern="@rm_endmark2")

rm_endmark(x, pattern="@rm_endmark3")
ex_endmark(x, pattern="@rm_endmark3")
[Package qdapRegex version 0.7.2 Index]