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Expressive Code の例

ここでは、Expressive Code を使用したコードブロックの表示方法を探ります。提供されている例は公式ドキュメントに基づいており、詳細はそちらを参照してください。

Expressive Code#

構文ハイライト#

構文ハイライト

通常の構文ハイライト#

console.log('This code is syntax highlighted!')

ANSIエスケープシーケンスのレンダリング#

Terminal window
ANSI colors:
- Regular: Red Gr k;een Yellow Blue Magenta Cyan
- Bold: Red Green Yellow Blue Magenta Cyan
- Dimmed: Red Green Yellow Blue Magenta Cyan
256 colors (showing colors 160-177):
160 161 162 163 164 165
166 167 168 169 170 171
172 173 174 175 176 177
Full RGB colors:
ForestGreen - RGB(34, 139, 34)
Text formatting: Bold Dimmed Italic Underline

エディタとターミナルのフレーム#

エディタとターミナルのフレーム

コードエディタのフレーム#

my-test-file.js
console.log('Title attribute example')

src/content/index.html
<div>File name comment example</div>

ターミナルのフレーム#

Terminal window
echo "This terminal frame has no title"

PowerShell terminal example
Write-Output "This one has a title!"

フレームタイプの上書き#

echo "Look ma, no frame!"

PowerShell Profile.ps1
# Without overriding, this would be a terminal frame
function Watch-Tail { Get-Content -Tail 20 -Wait $args }
New-Alias tail Watch-Tail

テキストと行のマーカー#

テキストと行のマーカー

全行と行範囲のマーキング#

// Line 1 - targeted by line number
// Line 2
// Line 3
// Line 4 - targeted by line number
// Line 5
// Line 6
// Line 7 - targeted by range "7-8"
// Line 8 - targeted by range "7-8"

行マーカーのタイプ選択 (mark, ins, del)#

line-markers.js
function demo() {
console.log('this line is marked as deleted')
// This line and the next one are marked as inserted
console.log('this is the second inserted line')
return 'this line uses the neutral default marker type'
}

行マーカーへのラベル追加#

labeled-line-markers.jsx
<button
role="button"
{...props}
value={value}
className={buttonClassName}
disabled={disabled}
active={active}
>
{children &&
!active &&
(typeof children === 'string' ? <span>{children}</span> : children)}
</button>

独立した行への長いラベルの追加#

labeled-line-markers.jsx
<button
role="button"
{...props}
value={value}
className={buttonClassName}
disabled={disabled}
active={active}
>
{children &&
!active &&
(typeof children === 'string' ? <span>{children}</span> : children)}
</button>

diffライクな構文の使用#

this line will be marked as inserted
this line will be marked as deleted
this is a regular line

--- a/README.md
+++ b/README.md
@@ -1,3 +1,4 @@
+this is an actual diff file
-all contents will remain unmodified
no whitespace will be removed either

構文ハイライトとdiffライクな構文の組み合わせ#

function thisIsJavaScript() {
// This entire block gets highlighted as JavaScript,
// and we can still add diff markers to it!
console.log('Old code to be removed')
console.log('New and shiny code!')
}

行内の個別テキストのマーキング#

function demo() {
// Mark any given text inside lines
return 'Multiple matches of the given text are supported';
}

正規表現#

console.log('The words yes and yep will be marked.')

フォワードスラッシュのエスケープ#

Terminal window
echo "Test" > /home/test.txt

インラインマーカーのタイプ選択 (mark, ins, del)#

function demo() {
console.log('These are inserted and deleted marker types');
// The return statement uses the default marker type
return true;
}

ワードラップ#

ワードラップ

ブロックごとのワードラップ設定#

// Example with wrap
function getLongString() {
return 'This is a very long string that will most probably not fit into the available space unless the container is extremely wide'
}

// Example with wrap=false
function getLongString() {
return 'This is a very long string that will most probably not fit into the available space unless the container is extremely wide'
}

折り返し行のインデント設定#

// Example with preserveIndent (enabled by default)
function getLongString() {
return 'This is a very long string that will most probably not fit into the available space unless the container is extremely wide'
}

// Example with preserveIndent=false
function getLongString() {
return 'This is a very long string that will most probably not fit into the available space unless the container is extremely wide'
}

折りたたみ可能なセクション#

折りたたみ可能なセクション

5 collapsed lines
// All this boilerplate setup code will be collapsed
import { someBoilerplateEngine } from '@example/some-boilerplate'
import { evenMoreBoilerplate } from '@example/even-more-boilerplate'
const engine = someBoilerplateEngine(evenMoreBoilerplate())
// This part of the code will be visible by default
engine.doSomething(1, 2, 3, calcFn)
function calcFn() {
// You can have multiple collapsed sections
3 collapsed lines
const a = 1
const b = 2
const c = a + b
// This will remain visible
console.log(`Calculation result: ${a} + ${b} = ${c}`)
return c
}
4 collapsed lines
// All this code until the end of the block will be collapsed again
engine.closeConnection()
engine.freeMemory()
engine.shutdown({ reason: 'End of example boilerplate code' })

行番号#

行番号

ブロックごとの行番号表示#

// This code block will show line numbers
console.log('Greetings from line 2!')
console.log('I am on line 3')

// Line numbers are disabled for this block
console.log('Hello?')
console.log('Sorry, do you know what line I am on?')

開始行番号の変更#

console.log('Greetings from line 5!')
console.log('I am on line 6')
Expressive Code の例
https://sofia-luceat-project.github.io/posts/default/expressive-code/
作者
sofiagros
掲載日
1002-04-10
License
CC BY-NC-SA 4.0