highlight.js サンプル
highlight.jsの確認用。
Bash
#!/bin/bash
# ログファイルをバックアップして圧縮するスクリプト
BACKUP_DIR="/var/backups/logs"
SOURCE_DIR="/var/log"
DATE=$(date +"%Y%m%d_%H%M%S")
ARCHIVE_NAME="logs_backup_$DATE.tar.gz"
LOG_FILE="./backup_$DATE.log"
mkdir -p "$BACKUP_DIR"
echo "[$(date)] バックアップ開始" | tee "$LOG_FILE"
find "$SOURCE_DIR" -type f -name "*.log" -size +0c | while read -r file; do
echo "追加: $file" >> "$LOG_FILE"
done
tar -czf "$BACKUP_DIR/$ARCHIVE_NAME" -C "$SOURCE_DIR" ./*.log 2>>"$LOG_FILE"
if [[ $? -eq 0 ]]; then
echo "[$(date)] バックアップ完了: $ARCHIVE_NAME" | tee -a "$LOG_FILE"
else
echo "[$(date)] エラー: バックアップ失敗" | tee -a "$LOG_FILE"
fi
exit 0
CSS
/*---------------------------
インポートとフォント設定
---------------------------*/
@import url('https://fonts.googleapis.com/css2?family=Roboto&display=swap');
@font-face {
font-family: 'MyCustomFont';
src: url('/fonts/MyCustomFont.woff2') format('woff2'),
url('/fonts/MyCustomFont.woff') format('woff');
font-weight: normal;
font-style: normal;
}
/*---------------------------
ルート変数と基本リセット
---------------------------*/
:root {
--main-color: #3498db;
--secondary-color: #2ecc71;
--font-stack: 'Roboto', 'MyCustomFont', sans-serif;
}
* {
margin: 0;
padding: 0;
box-sizing: border-box;
}
/*---------------------------
基本レイアウト
---------------------------*/
body {
font-family: var(--font-stack);
background-color: #f5f5f5;
color: #333;
line-height: 1.6;
}
header, footer {
background-color: var(--main-color);
color: white;
padding: 1rem;
text-align: center;
}
/*---------------------------
ナビゲーション
---------------------------*/
nav ul {
list-style: none;
display: flex;
justify-content: center;
gap: 1rem;
}
nav ul li a {
text-decoration: none;
color: inherit;
transition: color 0.3s;
}
nav ul li a:hover {
color: var(--secondary-color);
}
/*---------------------------
コンテナとグリッド
---------------------------*/
.container {
max-width: 960px;
margin: auto;
padding: 2rem;
display: grid;
grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
gap: 1.5rem;
}
/*---------------------------
メディアクエリ
---------------------------*/
@media (max-width: 768px) {
nav ul {
flex-direction: column;
}
.container {
grid-template-columns: 1fr;
}
}
/*---------------------------
擬似要素・擬似クラス
---------------------------*/
button::before {
content: "▶ ";
color: var(--main-color);
}
button:disabled {
opacity: 0.5;
cursor: not-allowed;
}
/*---------------------------
アニメーション
---------------------------*/
@keyframes fadeIn {
from { opacity: 0; transform: translateY(10px); }
to { opacity: 1; transform: translateY(0); }
}
.card {
background-color: white;
padding: 1rem;
border-radius: 0.5rem;
animation: fadeIn 0.5s ease-in-out;
}
Diff
- Normal
-
2c2 < Line 1: Hello world --- > Line 1: Hello world! 3c3 < Line 3: It has three lines --- > Line 3: It has four lines now - Context
-
*** old.txt 2025-06-15 20:00:00.000000000 +0900 --- new.txt 2025-06-15 20:01:00.000000000 +0900 *************** *** 1,4 **** ! Line 1: Hello world Line 2: This is a sample text ! Line 3: It has three lines Line 4: End of file --- 1,4 ---- ! Line 1: Hello world! Line 2: This is a sample text ! Line 3: It has four lines now Line 4: End of file - Unified
-
--- old.txt 2025-06-15 20:00:00.000000000 +0900 +++ new.txt 2025-06-15 20:01:00.000000000 +0900 @@ -1,4 +1,4 @@ -Line 1: Hello world +Line 1: Hello world! Line 2: This is a sample text -Line 3: It has three lines +Line 3: It has four lines now Line 4: End of file
DOS
@echo off
setlocal enabledelayedexpansion
rem === タイトルと色設定 ===
title Log Cleaner Utility
color 1F
echo.
echo *** Log Cleaner ***
echo.
rem === ユーザー入力取得 ===
set /p target="ログファイルのディレクトリを入力してください: "
if not exist "%target%" (
echo [エラー] ディレクトリが存在しません。
goto end
)
rem === ファイル一覧と選択肢 ===
echo 処理対象のログファイル一覧:
for %%F in ("%target%\*.log") do (
echo %%~nxF
)
echo.
choice /M "すべての .log ファイルを削除しますか？"
if errorlevel 2 (
echo 操作はキャンセルされました。
goto end
)
rem === 削除処理 ===
echo 削除中...
del /q "%target%\*.log"
if errorlevel 1 (
echo [エラー] 削除に失敗しました。
) else (
echo 削除が完了しました。
)
:end
echo.
pause
exit /b
EBNF
(* 文法: 簡易的な構造化プログラミング言語 *)
program = { statement } ;
statement = assignment | if_statement | while_loop | function_call | block ;
assignment = identifier , ":=" , expression , ";" ;
if_statement = "if" , condition , "then" , statement , [ "else" , statement ] ;
while_loop = "while" , condition , "do" , statement ;
function_call = identifier , "(" , [ argument_list ] , ")" , ";" ;
block = "begin" , { statement } , "end" , ";" ;
argument_list = expression , { "," , expression } ;
condition = expression , comparator , expression ;
comparator = "=" | "!=" | "<" | ">" | "<=" | ">=" ;
expression = term , { ("+" | "-") , term } ;
term = factor , { ("*" | "/") , factor } ;
factor = number | string | identifier | "(" , expression , ")" ;
identifier = letter , { letter | digit | "_" } ;
number = digit , { digit } ;
string = '"' , { character } , '"' ;
letter = "A" | "B" | "C" | ... | "Z" | "a" | "b" | "c" | ... | "z" ;
digit = "0" | "1" | "2" | "3" | "4" | "5" | "6" | "7" | "8" | "9" ;
character = ? all printable characters except " and ? ;
(* コメントはこのように書きます。 *)
Javascript
// ユーザーデータ処理用ユーティリティ
import { EMAIL_REGEX } from './config.mjs';
export class User {
constructor(name, email) {
this.name = name;
this.email = email;
}
get displayName() {
return this.name.trim().replace(/\b\w/g, c => c.toUpperCase());
}
isValidEmail() {
return EMAIL_REGEX.test(this.email);
}
}
export function filterValidUsers(users) {
return users.filter(user => user.isValidEmail());
}
JSON
{
"app": {
"name": "BackupUtility",
"version": "2.1.0",
"debug": true,
"paths": {
"source": "/var/log",
"destination": "/var/backups/logs",
"log": "/home/user/backup_logs"
}
},
"schedules": [
{
"day": "Monday",
"time": "03:00",
"enabled": true
},
{
"day": "Friday",
"time": "22:00",
"enabled": false
}
],
"notifications": {
"email": {
"enabled": true,
"recipients": ["admin@example.com"],
"smtp": {
"server": "smtp.example.com",
"port": 587,
"use_tls": true
}
}
}
}
Markdown
# hello world
you can write text [with links](http://example.com) inline or [link references][1].
* one _thing_ has *em*phasis
* two __things__ are **bold**
[1]: http://example.com
---
hello world
===========
<this_is inline="xml"></this_is>
> markdown is so cool
so are code segments
1. one thing (yeah!)
2. two thing `i can write code`, and `more` wipee!
MAXScript
global var -- Line Comment
/*
Block Comment
*/
struct TestClass (
public Literals = #(
1, .1e-2, 1.2, -0., 0x0E, "String", @"Verbatim", #Name, true,
2m30s5f2t, 18.25f, 2:10.0, $'Node Name', #{1..3, 5}
),
private rlt = Rollout rlt "Title" (
CheckBox ckbx "Caption" checked:false triState:0
on ckbx Changed state do (
-- ...
)
),
public fn TestFunction pA &pB pC:false &pD:1.2 pE:#(1, 2) pF: = (
-- ...
),
private mapped fn compare x y = (
-- ...
),
on Create do (
-- ...
)
)
global globalVariableName
/*
---------1---------2---------3---------4---------5---------6---------7---------8---------9---------0---------1---------2---------3---------4---------5---------6
*/
struct ClassName (
public PublicProp1 = #Var1,
private privateProp1 = "var2", -- Line Comment
fn FunctionName = /* ... */,
fn FunctionName = (
-- ...
),
public fn FunctionName p1 &p2 p3:#("x = 1", 1L, DataPair x:1 y:2) &p4: = (
-- ...
),
private fn functionName
param1
¶m2
param3:#("x = 1", 1, .1e-2, 1.2, -0., 0x0E, #{1..3, 5})
¶m4:
param5:(fn f x y = x * y) = (
-- ...
),
/*
Reserved Global Variables
*/
fn FunctionName = (
-- Language Reserved Keywords
#(
about, and, animate, as, at, by, case, catch, collect, continue, coordsys, do, else, exit, for, from, global, if, in, local, macroscript, mapped, max,
not, of, off, on, or, parameters, persistent, plugin, private, public, rcmenu, return, rollout, set, then, throw, to, tool, try, undo, utility, when,
where, while, with
)
-- Predefined Globals
#(
black, blue, brown, dontcollect, e, false, gray, green, ok, orange, pi, red, true, undefined, unsupplied, white, x_axis, y_axis, yellow, z_axis
)
-- 3ds Max System Globals & MAXScript System Globals
#(
activegrid, activemeditslot, ambientcolor, ambientcolorcontroller, animationrange, animbuttonenabled, animbuttonstate, backgroundcolor,
backgroundcolorcontroller, backgroundimagefilename, currentmateriallibrary, currenttime, displaygamma, displaysafeframes, editorfont, editorfontsize,
editorshowpath, editortabwidth, enableaccelerators, environmentmap, escapeenable, fileingamma, fileoutgamma, flyofftime, framerate, globaltracks,
hardwarelockid, heapfree, heapsize, hotspotangleseparation, inputtextcolor, lightlevel, lightlevelcontroller, lighttintcolor, lighttintcolorcontroller,
listener, localprerendscript, localtime, lyricdirectory, macrorecorder, manipulatemode, maxfilename, maxfilepath, messagetextcolor, numatmospherics,
numeffects, numsubobjectlevels, outputtextcolor, playactiveonly, playbackloop, postrendscript, prerendscript, productappid, realtimeplayback,
rendatmosphere, rendcamnode, rendcolorcheck, renddither256, renddithertrue, rendend, renderdisplacements, rendereffects, renderer, renderheight,
renderpixelaspect, renderpresetmrulist, renderwidth, rendfieldorder, rendfieldrender, rendfilenumberbase, rendforce2side, rendhidden,
rendimageaspectratio, rendimgseqtype, rendlockimageaspectratio, rendlockpixelaspectratio, rendmultithread, rendnthframe, rendnthserial, rendntsc_pal,
rendoutputfilename, rendpickupframes, rendpixelaspectratio, rendsavefile, rendshowvfb, rendsimplifyarealights, rendstart, rendsuperblack,
rendsuperblackthresh, rendtimetype, renduseactiveview, rendusedevice, renduseimgseq, rendusenet, rendvidcorrectmethod, rendviewid, rendviewindex,
rootnode, rootscene, scenematerials, scriptspath, showendresult, skiprenderedframes, slidertime, stacklimit, subobjectlevel, superclasses, ticksperframe,
timedisplaymode, trackviewnodes, useenvironmentmap, usepostrendscript, useprerendscript, videoposttracks
)
),
/*
Variables
*/
fn FunctionName = (
local foo, bar
local baz = true
global hoge = not baz
local pi = 'hello'
format "local pi:%\n" pi
format "global pi:%\n" ::pi
),
/*
Variable Names
*/
fn FunctionName = (
foo
bar123
longVariableName
__longVariableName__
foo.bar.baz
'foo \' bar'
),
/*
Literal
*/
fn FunctionName
param1
¶m2
param3:#("x = 1", 1, .1e-2, 1.2, -0., 0x0E, #{1..3, 5})
¶m4: = (
-- Number
123 + 123.45 + -0.00345 + 1.0e-6 + 0x0E + 0xFFE0 + .1 + 1.0d0 + 1L + 1P
#(123, 123.45, -0.00345, 1.0e-6, 0x0E, 0xFFE0, .1, 1.0d0, 1L, 1P)
-- String
"123.4" + "foobar"
"\" \\\\ ()[]{}<> /* */ --"
"
foo
bar
baz
"
@"g:\temp\newfolder\render"
"aaa\"bbb\\\"ccc" + @"aaa\"bbb\\\"ccc"
-- Name
#Foo
#123Foo
#Foo_Bar_123
#'Foo Bar'
-- Boolean
not true and false or on /* do */ or off
-- Color
#(red, green, blue, white, black, orange, yellow, brown, gray)
-- Point
[320, 240]
[10, 20, 30]
[sin a, 2 * b, a^2 + b^2]
-- Time
2.5s + 1m15s + 2m30s5f2t + 125f + 18.25f + 1f20t + 2:10.0 + 0:0.29 --+ 0.45n
-- Pathname
$*dummy*
$dummy/*
$dummy/*/*
$dummy/.../box*
$dummy...box*
$'Foo Bar'
-- Array
#(1, "foo", #(1.2, -4, #bar), [1, 2, 3])
#(1, sin x, a * 2.3)
-- BitArray
#{1..3, 5}
),
/*
Context Expressions
*/
fn FunctionName = (
animate on /* do */
at level
in $'foo'
at time t
coordsys world
about $'foot'
undo 'Label' on /* do */
redraw off
),
/*
Flow
*/
fn FunctionName = (
if a == b then (
if b then "b" else "a"
)
else if a == c then (
if c then
"c"
else
"a"
)
else (
case of (
(a == d): "d"
(a == f): (
case g of (
(1): "1"
(2): "2"
default: false
)
)
default: (
try (
while a do (
for i = 10 to 1 by -1 where mod i 2 == 0 while i > 3 collect
(
if j == 4 then (
continue
)
else if j == 8 then
(
exit
)
)
)
)
catch (
format "%\n" (getCurrentException())
)
)
)
)
),
private mapped fn FunctionName param = (
with printAllElements on if param do param
),
on obj EventName arg1 arg2 do (
-- ...
),
on Clone do /* ... */,
on Create do (
-- ...
)
)
MEL
/*-
@param $node <string>
@param $attribute <string>
@returns <boolean>
@remarks 配列アトリビュートの場合は最後のアトリビュートをテストする。
例えば `$attribute` が `a.b.c` の場合、 `$node.a.b` の `c` の存在を確認する。
*/
proc int existsAttribute(string $node, string $attribute) {
if (!`objExists $node`) return false;
if (`gmatch $attribute "*\\[*\\]"`) {
string $buffer[];
if (`tokenize $attribute "[]" $buffer` < 2) return false;
return `attributeQuery -ex -n $node $buffer[0]`;
}
else if (`gmatch $attribute "*.*"`) {
string $buffer[];
int $numBuffer = `tokenize $attribute "." $buffer`;
if ($numBuffer < 2) return false;
string $parentAttribute = $node;
for ($i = 0; $i < $numBuffer - 1; $i++) {
$parentAttribute += "." + $buffer[$i];
}
string $targetAttribute = $buffer[$numBuffer - 1];
return `attributeQuery -ex -n $parentAttribute $targetAttribute`;
}
else {
return `attributeQuery -ex -n $node $attribute`;
}
}
PowerShell
# サービスの状態を監視して必要に応じて再起動するスクリプト
$ServiceName = "Spooler"
$LogFile = "C:\logs\service_watchdog.log"
function Log {
param($message)
$timestamp = Get-Date -Format "yyyy-MM-dd HH:mm:ss"
"$timestamp - $message" | Out-File -FilePath $LogFile -Append
}
Log "監視開始: $ServiceName"
try {
$service = Get-Service -Name $ServiceName -ErrorAction Stop
if ($service.Status -ne 'Running') {
Log "サービスが停止中: 再起動を試行中"
Start-Service -Name $ServiceName
Start-Sleep -Seconds 2
$status = (Get-Service -Name $ServiceName).Status
if ($status -eq 'Running') {
Log "再起動成功"
} else {
Log "再起動失敗: 現在の状態は $status"
}
} else {
Log "サービスは正常に稼働中"
}
} catch {
Log "エラー発生: $_"
}
Properties
# You are reading a comment in ".properties" file.
! The exclamation mark ('!') can also be used for comments.
# Comments are ignored.
# Blank lines are also ignored.
# Lines with "properties" contain a key and a value separated by a delimiting character.
# There are 3 delimiting characters: equal ('='), colon (':') and whitespace (' ', '\t' and '\f').
website = https://en.wikipedia.org/
language : English
topic .properties files
# A word on a line will just create a key with no value.
empty
# Whitespace that appears between the key, the delimiter and the value is ignored.
# This means that the following are equivalent (other than for readability).
hello=hello
hello = hello
# To start the value with whitespace, escape it with a backslash ('\').
whitespaceStart = \ <-This space is not ignored.
# Keys with the same name will be overwritten by the key that is the furthest in a file.
# For example the final value for "duplicateKey" will be "second".
duplicateKey = first
duplicateKey = second
# To use the delimiter characters inside a key, you need to escape them with a ('\').
# However, there is no need to do this in the value.
delimiterCharacters\:\=\ = This is the value for the key "delimiterCharacters\:\=\ "
# Adding a backslash ('\') at the end of a line means that the value continues on the next line.
multiline = This line \
continues
# If you want your value to include a backslash ('\'), it should be escaped by another backslash ('\').
path = c:\\wiki\\templates
# This means that if the number of backslashes ('\') at the end of the line is even, the next line is not included in the value.
# In the following example, the value for "evenKey" is "This is on one line\".
evenKey = This is on one line\\
# This line is a normal comment and is not included in the value for "evenKey".
# If the number of backslash ('\') is odd, then the next line is included in the value.
# In the following example, the value for "oddKey" is "This is line one and\# This is line two".
oddKey = This is line one and\\\
# This is line two
# Whitespace characters at the beginning of a line is removed.
# Make sure to add the spaces you need before the backslash ('\') on the first line.
# If you add them at the beginning of the next line, they will be removed.
# In the following example, the value for "welcome" is "Welcome to Wikipedia!".
welcome = Welcome to \
Wikipedia!
# If you need to add newlines and carriage returns, they need to be escaped using ('\n') and ('\r') respectively.
# You can also optionally escape tabs with ('\t') for readability purposes.
valueWithEscapes = This is a newline\n and a carriage return\r and a tab\t.
# You can also use Unicode escape characters (maximum of four hexadecimal digits).
# In the following example, the value for "encodedHelloInJapanese" is "こんにちは".
encodedHelloInJapanese = \u3053\u3093\u306b\u3061\u306f
# But with more modern file encodings like UTF-8, you can directly use supported characters.
helloInJapanese = こんにちは
Python
import os
import json
import logging
from datetime import datetime
from typing import List, Dict
# ログ設定
logging.basicConfig(level=logging.INFO, format='%(asctime)s - %(levelname)s - %(message)s')
def scan_directory(path: str, extensions: List[str]) -> List[Dict[str, str]]:
"""指定した拡張子のファイルを再帰的に検索し、結果をリストで返す"""
results = []
for root, dirs, files in os.walk(path):
for file in files:
if any(file.endswith(ext) for ext in extensions):
full_path = os.path.join(root, file)
results.append({
"name": file,
"path": full_path,
"modified": datetime.fromtimestamp(os.path.getmtime(full_path)).isoformat()
})
return results
def save_json(data: List[Dict[str, str]], output_file: str) -> None:
"""結果をJSON形式で保存"""
with open(output_file, 'w', encoding='utf-8') as f:
json.dump(data, f, indent=2, ensure_ascii=False)
logging.info(f"JSONファイル保存完了: {output_file}")
def main():
target_dir = "./logs"
output = "scan_results.json"
try:
logging.info("ディレクトリスキャン開始")
result = scan_directory(target_dir, [".log", ".txt"])
save_json(result, output)
except Exception as e:
logging.error(f"エラー発生: {e}")
if __name__ == "__main__":
main()
XML
<!DOCTYPE html>
<title>Title</title>
<style>body {width: 500px;}</style>
<script type="application/javascript">
function $init() {return true;}
</script>
<body>
<p checked class="title" id='title'>Title</p>
<!-- here goes the rest of the page -->
</body>