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and

and constructs language-aware lists in R. It extends the functionality of functions like knitr::combine_words() and glue::glue_collapse() to make and-separated and or-separated lists that automatically conform to the user’s R language settings.

Installation

You can install the released version of and from CRAN with:

install.packages("and")

or the development version of and from GitHub with:

# install.packages("pak")
pak::pkg_install("rossellhayes/and")

Usage

and() creates “and”-separated lists from vectors.

names <- c("John", "Paul", "George", "Ringo")
and(names)
#> [1] "John, Paul, George, and Ringo"

But the Oxford comma is less common in other varieties of English, what happens if I change my R language to British English?

Sys.setenv(LANGUAGE = "en_GB")
and(names)
#> [1] "John, Paul, George and Ringo"

What about other languages?

Sys.setenv(LANGUAGE = "es")
and(names)
#> [1] "John, Paul, George y Ringo"
Sys.setenv(LANGUAGE = "eu")
and(names)
#> [1] "John, Paul, George eta Ringo"
Sys.setenv(LANGUAGE = "ko")
and(names)
#> [1] "John, Paul, George 및 Ringo"

Handling the nuances

Creating a list is not as simple as putting a different word between the last two items. For example, in Spanish, the word for and changes if the next word starts with an ⟨i⟩ or ⟨y⟩:

princess_bride <- c("Vizzini", "Fezzik", "Inigo Montoya")
Sys.setenv(LANGUAGE = "es")
and(princess_bride)
#> [1] "Vizzini, Fezzik e Inigo Montoya"

or-separated lists

Everything and() can do or() can do better. Just use or() to create or-separated lists with all the same contextual awareness.

outcomes <- c("win", "lose", "draw")
Sys.setenv(LANGUAGE = "en_US")
or(outcomes)
#> [1] "win, lose, or draw"
Sys.setenv(LANGUAGE = "ja")
or(outcomes)
#> [1] "win、lose、またはdraw"

Hardcoding language

Don’t want the language of you string to depend on the user’s environment variables? You can explicitly set the language using the language argument.

and(names, language = "en_US")
#> [1] "John, Paul, George, and Ringo"
and(names, language = "en_GB")
#> [1] "John, Paul, George and Ringo"
and(names, language = "es")
#> [1] "John, Paul, George y Ringo"
and(names, language = "fr")
#> [1] "John, Paul, George et Ringo"

Languages

Fully supported languages

* The following English variants use an Oxford comma in addition to en_GB: en_AG, en_AI, en_AT, en_AU, en_BB, en_BE, en_BM, en_BS, en_BW, en_BZ, en_CA, en_CC, en_CH, en_CK, en_CM, en_CX, en_CY, en_DE, en_DG, en_DK, en_DM, en_ER, en_FI, en_FJ, en_FK, en_FM, en_GD, en_GG, en_GH, en_GI, en_GM, en_GY, en_HK, en_IE, en_IL, en_IM, en_IN, en_IO, en_JE, en_JM, en_KE, en_KI, en_KN, en_KY, en_LC, en_LR, en_LS, en_MG, en_MO, en_MS, en_MT, en_MU, en_MV, en_MW, en_MY, en_NA, en_NF, en_NG, en_NL, en_NR, en_NU, en_NZ, en_PG, en_PK, en_PN, en_PW, en_RW, en_SB, en_SC, en_SD, en_SE, en_SG, en_SH, en_SI, en_SL, en_SS, en_SX, en_SZ, en_TC, en_TK, en_TO, en_TT, en_TV, en_TZ, en_UG, en_VC, en_VG, en_VU, en_WS, en_ZA, en_ZM, and en_ZW.

Partially supported languages

Partially supported languages generally localize and() but not or().

Hex sticker image by Flavia Rossell Hayes.

Please note that and is released with a Contributor Code of Conduct. By contributing to this project, you agree to abide by its terms.

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.