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|
cli
================
> Helpers for Developing Command Line Interfaces
[](https://travis-ci.org/r-lib/cli)
[](https://ci.appveyor.com/project/gaborcsardi/cli)
[](http://www.r-pkg.org/pkg/cli)
[](http://www.r-pkg.org/pkg/cli)
[](https://codecov.io/github/r-lib/cli?branch=master)
It integrates well with `crayon` for coloring the boxes or their content,
It can draw rules and boxes to make headers or footers in console output,
and tree structures. It includes a set of Unicode characters, with fallbacks
on systems that do not support them.
---
- [Installation](#installation)
- [Usage](#usage)
- [Unicode characters](#unicode-characters)
- [Spinners](#spinners)
- [Rules](#rules)
- [Boxes](#boxes)
- [Trees](#trees)
- [License](#license)
---
# Installation
Install the stable version from CRAN:
``` r
install.packages("cli")
```
Install the development version from GitHub:
``` r
source("https://install-github.me/r-lib/cli")
```
# Usage
``` r
library(cli)
```
## Unicode characters
Inspired by (and mostly copied from) the
[figures](https://github.com/sindresorhus/figures) JavaScript project.
#> ✔ tick ☐ checkbox_off
#> ✖ cross ⓧ checkbox_circle_on
#> ★ star Ⓘ checkbox_circle_off
#> ▇ square ❓ fancy_question_mark
#> ◻ square_small ≠ neq
#> ◼ square_small_filled ≥ geq
#> ◯ circle ≤ leq
#> ◉ circle_filled × times
#> ◌ circle_dotted ▔ upper_block_1
#> ◎ circle_double ▀ upper_block_4
#> ⓞ circle_circle ▁ lower_block_1
#> ⓧ circle_cross ▂ lower_block_2
#> Ⓘ circle_pipe ▃ lower_block_3
#> ?⃝ circle_question_mark ▄ lower_block_4
#> ● bullet ▅ lower_block_5
#> ․ dot ▆ lower_block_6
#> ─ line ▇ lower_block_7
#> ═ double_line █ lower_block_8
#> … ellipsis █ full_block
#> … continue ⁰ sup_0
#> ❯ pointer ¹ sup_1
#> ℹ info ² sup_2
#> ⚠ warning ³ sup_3
#> ☰ menu ⁴ sup_4
#> ☺ smiley ⁵ sup_5
#> ෴ mustache ⁶ sup_6
#> ♥ heart ⁷ sup_7
#> ↑ arrow_up ⁸ sup_8
#> ↓ arrow_down ⁹ sup_9
#> ← arrow_left ⁻ sup_minus
#> → arrow_right ⁺ sup_plus
#> ◉ radio_on ▶ play
#> ◯ radio_off ■ stop
#> ☒ checkbox_on ● record
## Spinners
See `list_spinners()` and `get_spinner()`. From the awesome
[cli-spinners](https://github.com/sindresorhus/cli-spinners#readme)
project.
## Rules
Simple rule
``` r
rule()
```
<!-- -->
Double rule
``` r
rule(line = 2)
```
<!-- -->
Bars
``` r
rule(line = "bar2")
```
<!-- -->
``` r
rule(line = "bar5")
```
<!-- -->
Left label
``` r
rule(left = "Results")
```
<!-- -->
Centered label
``` r
rule(center = " * RESULTS * ")
```
<!-- -->
Colored labels
``` r
rule(center = crayon::red(" * RESULTS * "))
```
<!-- -->
Colored label and line
``` r
rule(center = " * RESULTS * ", col = "red")
```
<!-- -->
Colored line
``` r
rule(center = " * RESULTS * ", line_col = "red")
```
<!-- -->
Custom line
``` r
rule(center = "TITLE", line = "~")
```
<!-- -->
More custom line
``` r
rule(center = "TITLE", line = "~-", line_col = "blue")
```
<!-- -->
Even more custom
line
``` r
rule(center = crayon::bgRed(" ", symbol$star, "TITLE", symbol$star, " "),
line = "\u2582", line_col = "orange")
```
<!-- -->
## Boxes
Default box
``` r
boxx("Hello there!")
```
<!-- -->
Change border style
``` r
boxx("Hello there!", border_style = "double")
```
<!-- -->
Multiple lines
``` r
boxx(c("Hello", "there!"), padding = 1)
```
<!-- -->
Padding
``` r
boxx("Hello there!", padding = 1)
```
<!-- -->
``` r
boxx("Hello there!", padding = c(1, 5, 1, 5))
```
<!-- -->
Margin
``` r
boxx("Hello there!", margin = 1)
```
<!-- -->
``` r
boxx("Hello there!", margin = c(1, 5, 1, 5))
```
<!-- -->
``` r
boxx("Hello there!", padding = 1, margin = c(1, 5, 1, 5))
```
<!-- -->
Floating
``` r
boxx("Hello there!", padding = 1, float = "center")
```
<!-- -->
``` r
boxx("Hello there!", padding = 1, float = "right")
```
<!-- -->
Text color
``` r
boxx(crayon::cyan("Hello there!"), padding = 1, float = "center")
```
<!-- -->
Backgorund color
``` r
boxx("Hello there!", padding = 1, background_col = "brown")
```
<!-- -->
``` r
boxx("Hello there!", padding = 1, background_col = crayon::bgRed)
```
<!-- -->
Border color
``` r
boxx("Hello there!", padding = 1, border_col = "green")
```
<!-- -->
``` r
boxx("Hello there!", padding = 1, border_col = crayon::red)
```
<!-- -->
Label alignment
``` r
boxx(c("Hi", "there", "you!"), padding = 1, align = "left")
```
<!-- -->
``` r
boxx(c("Hi", "there", "you!"), padding = 1, align = "center")
```
<!-- -->
``` r
boxx(c("Hi", "there", "you!"), padding = 1, align = "right")
```
<!-- -->
A very customized box
``` r
star <- symbol$star
label <- c(paste(star, "Hello", star), " there!")
boxx(
crayon::white(label),
border_style="round",
padding = 1,
float = "center",
border_col = "tomato3",
background_col="darkolivegreen"
)
```
<!-- -->
## Trees
You can specify the tree with a two column data frame, containing the
node ids/labels, and the list of their children.
``` r
data <- data.frame(
stringsAsFactors = FALSE,
package = c("processx", "backports", "assertthat", "Matrix",
"magrittr", "rprojroot", "clisymbols", "prettyunits", "withr",
"desc", "igraph", "R6", "crayon", "debugme", "digest", "irlba",
"rcmdcheck", "callr", "pkgconfig", "lattice"),
dependencies = I(list(
c("assertthat", "crayon", "debugme", "R6"), character(0),
character(0), "lattice", character(0), "backports", character(0),
c("magrittr", "assertthat"), character(0),
c("assertthat", "R6", "crayon", "rprojroot"),
c("irlba", "magrittr", "Matrix", "pkgconfig"), character(0),
character(0), "crayon", character(0), "Matrix",
c("callr", "clisymbols", "crayon", "desc", "digest", "prettyunits",
"R6", "rprojroot", "withr"),
c("processx", "R6"), character(0), character(0)
))
)
tree(data, root = "rcmdcheck")
```
<!-- -->
An optional third column may contain custom labels. These can be colored
as well:
``` r
data$label <- paste(data$package,
crayon::blurred(paste0("(", c("2.0.0.1", "1.1.1", "0.2.0", "1.2-11",
"1.5", "1.2", "1.2.0", "1.0.2", "2.0.0", "1.1.1.9000", "1.1.2",
"2.2.2", "1.3.4", "1.0.2", "0.6.12", "2.2.1", "1.2.1.9002",
"1.0.0.9000", "2.0.1", "0.20-35"), ")"))
)
roots <- ! data$package %in% unlist(data$dependencies)
data$label[roots] <- crayon::cyan(crayon::italic(data$label[roots]))
tree(data, root = "rcmdcheck")
```
<!-- -->
# License
MIT © RStudio
|
