concord: Produce a concordance.

In ekbrown/corpling: Simple Tools for Corpus Linguistics

Description

Produces a concordance of a regular expression and returns a data frame.

Usage

concord(text, pattern, ignore_case = TRUE, locations = FALSE,
  extra_context = 0, shorten = 0)

Arguments

text	The text to search in, as either a character vector or a list of character vectors.
pattern	The Perl-compartible regular expression to search for.
ignore_case	If ignore_case = TRUE (the default), a case-insensitive search is performed.
locations	If locations = TRUE, the element indexes with matches are returned.
extra_context	If positive, specifies the number of additional lines around the lines with matches to return. Useful if not enough context is given in the lines with matches.
shorten	If positive, truncates the preceding and following contexts to the number of characters specified. Useful if too much context is given in the lines with matches, for example, in texts with (very) long paragraphs.

Value

A data frame.

See Also

Stefan Th. Gries' function exact.matches().

Examples

concord("hello", "e")
concord("some sentence here", "sentence")
concord("some sentence here", "s[eo]")

text <- c("first sentence here", "short paragraph here", "third line here")
concord(text, "e[nr]", locations = TRUE)
concord("some sentence here", "e(?=r)")
concord("some sentence here", "e(?!n)")

ekbrown/corpling documentation built on May 16, 2019, 2:24 a.m.