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Convert Control Characters to Spaces

Source: R/utilities_text.R
clean.cntrl.Rd

Converts control characters into physical spaces.

Usage

clean.cntrl(text)

Arguments

text

A string of words forming a sentence or phrase.

Value

string of cleaned characters forming a sentence or phrase.

Details

One of several text cleaning functions. The function replaces the following control characters \n, \r, \t, \v, and \f (those identified by the [:cntrl:] regular expression) with a series of three (3) physical spaces. While multiple, concurrent and connected control characters (\n\r\t\v\f) would be replace by three spaces, control characters separated by any printable character (defined by [:print:]), even spaces, are retained; see example.

See also

Other "text cleaning": convert.spaces(), extract.emails()

Author

Emilio Xavier Esposito emilio.esposito@gmail.com (https://github.com/emilioxavier)

Examples

comment <- "All day I see class mates and send e-mails.\n\r\t\v\fI miss East Lansing."
clean.cntrl(text=comment)
#> [1] "All day I see class mates and send e-mails.   I miss East Lansing."
# [1] "All day I see class mates and send e-mails.   I miss East Lansing."

comment <- "All day I see class mates and send e-mails.\n  \r  \t  \v\fI miss East Lansing."
clean.cntrl(text=comment)
#> [1] "All day I see class mates and send e-mails.                  I miss East Lansing."
# [1] "All day I see class mates and send e-mails.                  I miss East Lansing."