pluralize: String templating with pluralization

In cli: Helpers for Developing Command Line Interfaces

String templating with pluralization

Description

pluralize() is similar to glue::glue(), with two differences:

• It supports cli's pluralization syntax, using ⁠{?}⁠ markers.

• It collapses substituted vectors into a comma separated string.

Usage

pluralize(
  ...,
  .envir = parent.frame(),
  .transformer = glue::identity_transformer
)

Arguments

..., .envir, .transformer

All arguments are passed to glue::glue().

Details

See pluralization and some examples below.

You need to install the glue package to use this function.

See Also

Other pluralization: no(), pluralization

Examples

# Regular plurals
nfile <- 0; pluralize("Found {nfile} file{?s}.")
nfile <- 1; pluralize("Found {nfile} file{?s}.")
nfile <- 2; pluralize("Found {nfile} file{?s}.")

# Irregular plurals
ndir <- 1; pluralize("Found {ndir} director{?y/ies}.")
ndir <- 5; pluralize("Found {ndir} director{?y/ies}.")

# Use 'no' instead of zero
nfile <- 0; pluralize("Found {no(nfile)} file{?s}.")
nfile <- 1; pluralize("Found {no(nfile)} file{?s}.")
nfile <- 2; pluralize("Found {no(nfile)} file{?s}.")

# Use the length of character vectors
pkgs <- "pkg1"
pluralize("Will remove the {pkgs} package{?s}.")
pkgs <- c("pkg1", "pkg2", "pkg3")
pluralize("Will remove the {pkgs} package{?s}.")

pkgs <- character()
pluralize("Will remove {?no/the/the} {pkgs} package{?s}.")
pkgs <- c("pkg1", "pkg2", "pkg3")
pluralize("Will remove {?no/the/the} {pkgs} package{?s}.")

# Multiple quantities
nfiles <- 3; ndirs <- 1
pluralize("Found {nfiles} file{?s} and {ndirs} director{?y/ies}")

# Explicit quantities
nupd <- 3; ntotal <- 10
cli_text("{nupd}/{ntotal} {qty(nupd)} file{?s} {?needs/need} updates")

cli documentation built on June 22, 2024, 10:57 a.m.