charmap

Match the elements of a character vectors against a mapping table,
that can specify multiple exact or partial matches.

Provides some low-level utilities to use for package
development. It currently provides managers for multiple package specific
options and registries, vignette, unit test and bibtex related utilities.
It serves as a base package for packages like 'NMF', 'RcppOctave', 'doRNG', and
as an incubator package for other general purposes utilities, that will
eventually be packaged separately.
It is still under heavy development and changes in the interface(s) are
more than likely to happen.

Renaud Gaujoux

pkgmaker

Development Utilities for R Packages

charmap function

<dl><dt>x</dt>
<dd>character vector to match</dd>
<dt>maps</dt>
<dd>mapping tables.
May be a character vector, a list of character vectors or a function.</dd>
<dt>nomatch</dt>
<dd>character string to be used for non-matched elements of <code>x</code>.
If <code>NULL</code>, these elements are left unchanged.</dd>
<dt>partial</dt>
<dd>logical that indicates if partial matches are allowed,
in which case mappings are used as regular expressions.</dd>
<dt>rev</dt>
<dd>logical that indicates if the mapping should be interpreted in the
reverse way.</dd></dl>

Arguments

Substituting Strings Against a Mapping Table — charmap

<dl>

<dt>x</dt>
<dd>character vector to match</dd>


<dt>maps</dt>
<dd>mapping tables.
May be a character vector, a list of character vectors or a function.</dd>


<dt>nomatch</dt>
<dd>character string to be used for non-matched elements of <code>x</code>.
If <code>NULL</code>, these elements are left unchanged.</dd>


<dt>partial</dt>
<dd>logical that indicates if partial matches are allowed,
in which case mappings are used as regular expressions.</dd>


<dt>rev</dt>
<dd>logical that indicates if the mapping should be interpreted in the
reverse way.</dd>

</dl>

charmap: Substituting Strings Against a Mapping Table

Description

Usage

Value

Arguments