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# Face | ||
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With the `Reline::Face` class, you can modify the text color and text decorations in your terminal emulator. | ||
This is primarily used to customize the appearance of the method completion dialog in IRB. | ||
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## Usage | ||
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### ex: Change the background color of the completion dialog cyan to blue | ||
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```ruby | ||
Reline::Face.config(:completion_dialog) do |conf| | ||
conf.define :default, foreground: :white, background: :blue | ||
# ^^^^^ `:cyan` by default | ||
conf.define :enhanced, foreground: :white, background: :magenta | ||
conf.define :scrollbar, foreground: :white, background: :blue | ||
end | ||
``` | ||
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If you provide the above code to an IRB session in some way, you can apply the configuration. | ||
It's generally done by writing it in `.irbrc`. | ||
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Regarding `.irbrc`, please refer to the following link: [https://docs.ruby-lang.org/en/master/IRB.html](https://docs.ruby-lang.org/en/master/IRB.html) | ||
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## Available parameters | ||
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`Reline::Face` internally creates SGR (Select Graphic Rendition) code according to the block parameter of `Reline::Face.config` method. | ||
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| Key | Value | SGR Code (numeric part following "\e[")| | ||
|:------------|:------------------|-----:| | ||
| :foreground | :black | 30 | | ||
| | :red | 31 | | ||
| | :green | 32 | | ||
| | :yellow | 33 | | ||
| | :blue | 34 | | ||
| | :magenta | 35 | | ||
| | :cyan | 36 | | ||
| | :white | 37 | | ||
| | :bright_black | 90 | | ||
| | :gray | 90 | | ||
| | :bright_red | 91 | | ||
| | :bright_green | 92 | | ||
| | :bright_yellow | 93 | | ||
| | :bright_blue | 94 | | ||
| | :bright_magenta | 95 | | ||
| | :bright_cyan | 96 | | ||
| | :bright_white | 97 | | ||
| :background | :black | 40 | | ||
| | :red | 41 | | ||
| | :green | 42 | | ||
| | :yellow | 43 | | ||
| | :blue | 44 | | ||
| | :magenta | 45 | | ||
| | :cyan | 46 | | ||
| | :white | 47 | | ||
| | :bright_black | 100 | | ||
| | :gray | 100 | | ||
| | :bright_red | 101 | | ||
| | :bright_green | 102 | | ||
| | :bright_yellow | 103 | | ||
| | :bright_blue | 104 | | ||
| | :bright_magenta | 105 | | ||
| | :bright_cyan | 106 | | ||
| | :bright_white | 107 | | ||
| :style | :reset | 0 | | ||
| | :bold | 1 | | ||
| | :faint | 2 | | ||
| | :italicized | 3 | | ||
| | :underlined | 4 | | ||
| | :slowly_blinking | 5 | | ||
| | :blinking | 5 | | ||
| | :rapidly_blinking | 6 | | ||
| | :negative | 7 | | ||
| | :concealed | 8 | | ||
| | :crossed_out | 9 | | ||
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- The value for `:style` can be both a Symbol and an Array | ||
```ruby | ||
# Single symbol | ||
conf.define :default, style: :bold | ||
# Array | ||
conf.define :default, style: [:bold, :negative] | ||
``` | ||
- The availability of specific SGR codes depends on your terminal emulator | ||
- You can specify a hex color code to `:foreground` and `:background` color like `foreground: "#FF1020"`. Its availability also depends on your terminal emulator | ||
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## Debugging | ||
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You can see the current Face configuration by `Reline::Face.configs` method | ||
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Example: | ||
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```ruby | ||
irb(main):001:0> Reline::Face.configs | ||
=> | ||
{:default=> | ||
{:default=>{:style=>:reset, :escape_sequence=>"\e[0m"}, | ||
:enhanced=>{:style=>:reset, :escape_sequence=>"\e[0m"}, | ||
:scrollbar=>{:style=>:reset, :escape_sequence=>"\e[0m"}}, | ||
:completion_dialog=> | ||
{:default=>{:foreground=>:white, :background=>:cyan, :escape_sequence=>"\e[0m\e[37;46m"}, | ||
:enhanced=>{:foreground=>:white, :background=>:magenta, :escape_sequence=>"\e[0m\e[37;45m"}, | ||
:scrollbar=>{:foreground=>:white, :background=>:cyan, :escape_sequence=>"\e[0m\e[37;46m"}}} | ||
``` | ||
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## Backlog | ||
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- Support for 256-color terminal emulator. Fallback hex color code such as "#FF1020" to 256 colors | ||
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module Benchmark | ||
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VERSION = "0.2.1" | ||
VERSION = "0.3.0" | ||
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BENCHMARK_VERSION = "2002-04-25" # :nodoc: | ||
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