代码高亮Demo（富文本模式）
HTML, XML<!DOCTYPE html>
<title>Title</title>
<style>body {width: 500px;}</style>
<script type="application/javascript">
function $init() {return true;}
</script>
<body>
<p checked class="title" id='title'>Title</p>
<!-- here goes the rest of the page -->
</body>
Bash
#!/bin/bash
###### CONFIG
ACCEPTED_HOSTS="/root/.hag_accepted.conf"
BE_VERBOSE=false
if [ "$UID" -ne 0 ]
then
echo "Superuser rights required"
exit 2
fi
genApacheConf(){
echo -e "# Host ${HOME_DIR}$1/$2 :"
}
echo '"quoted"' | tr -d \" > text.txt
C++
#include <iostream>
int main(int argc, char *argv[]) {
/* An annoying "Hello World" example */
for (auto i = 0; i < 0xFFFF; i++)
cout << "Hello, World!" << endl;
char c = '\n';
unordered_map <string, vector<string> > m;
m["key"] = "\\\\"; // this is an error
return -2e3 + 12l;
}
C#
using System.IO.Compression;
#pragma warning disable 414, 3021
namespace MyApplication
{
class Program : IInterface
{
public static List<int> JustDoIt(int count)
{
Span<int> numbers = stackalloc int;
Console.WriteLine($"Hello {Name}!");
return new List<int>(new int[] { 1, 2, 3 })
}
}
}
CSS
@font-face {
font-family: Chunkfive; src: url('Chunkfive.otf');
}
body, .usertext {
color: #F0F0F0; background: #600;
font-family: Chunkfive, sans;
--heading-1: 30px/32px Helvetica, sans-serif;
}
@import url(print.css);
@media print {
a::after {
content: attr(href)
}
}
Markdown
# hello world
you can write text (http://example.com) inline or .
* one _thing_ has *em*phasis
* two __things__ are **bold**
: 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!
Diff
Index: languages/ini.js
===================================================================
--- languages/ini.js (revision 199)
+++ languages/ini.js (revision 200)
@@ -1,8 +1,7 @@
hljs.LANGUAGES.ini =
{
case_insensitive: true,
-defaultMode:
-{
+defaultMode: {
contains: ['comment', 'title', 'setting'],
illegal: '[^\\s]'
},
*** /path/to/original timestamp
--- /path/to/new timestamp
***************
*** 1,3 ****
--- 1,9 ----
+ This is an important
+ notice! It should
+ therefore be located at
+ the beginning of this
+ document!
! compress the size of the
! changes.
It is important to spell
Ruby
# The Greeter class
class Greeter
def initialize(name)
@name = name.capitalize
end
def salute
puts "Hello #{@name}!"
end
end
g = Greeter.new("world")
g.salute
Go
package main
import "fmt"
func main() {
ch := make(chan float64)
ch <- 1.0e10 // magic number
x, ok := <- ch
defer fmt.Println(`exitting now\`)
go println(len("hello world!"))
return
}
GraphQL
# Graphql detection template
mutation Hero($episode: Episode, $withFriends: Boolean!) {
hero(episode: $episode) {
name
friends @include(if: $withFriends) {
name
... on Droid {
primaryFunction
}
... on Human {
height
}
}
}
}
query HeroNameAndFriends {
hero {
name
friends {
name
}
}
}
fragment comparisonFields on Character {
name
appearsIn
friends {
name
}
}
input StoryLikeSubscribeInput {
storyId: string
clientSubscriptionId: string
}
TOML, also INI
; boilerplate
name = "some_name"
authors = ["Author"]
description = "This is \
a description"
[]
name = ${NAME}
default = True
auto = no
counter = 1_000
Java
/**
* @author John Smith <john.smith@example.com>
*/
package l2f.gameserver.model;
public abstract strictfp class L2Char extends L2Object {
public static final Short ERROR = 0x0001;
public void moveTo(int x, int y, int z) {
_ai = null;
log("Should not be called");
if (1 > 5) { // wtf!?
return;
}
}
}
JavaScript
function $initHighlight(block, cls) {
try {
if (cls.search(/\bno\-highlight\b/) != -1)
return process(block, true, 0x0F) +
` class="${cls}"`;
} catch (e) {
/* handle exception */
}
for (var i = 0 / 2; i < classes.length; i++) {
if (checkCondition(classes) === undefined)
console.log('undefined');
}
return (
<div>
<web-component>{block}</web-component>
</div>
)
}
export$initHighlight;
JSON
[
{
"title": "apples",
"count": ,
"description": {"text": "...", "sensitive": false}
},
{
"title": "oranges",
"count": ,
"description": {"text": "...", "sensitive": false}
}
]
Kotlin
import kotlinx.serialization.Serializable
import kotlin.random.Random
interface Building
@Serializable
class House(
private val rooms: Int? = 3,
val name: String = "Palace"
) : Building {
var residents: Int = 4
get() {
println("Current residents: $field")
return field
}
fun burn(evacuation: (people: Int) -> Boolean) {
rooms ?: return
if (evacuation((0..residents).random()))
residents = 0
}
}
fun main() {
val house = House(name = "Skyscraper 1")
house.burn {
Random.nextBoolean()
}
}
Less
@import "fruits";
@rhythm: 1.5em;
@media screen and (min-resolution: 2dppx) {
body {font-size: 125%}
}
section > .foo + #bar:hover {
margin: @rhythm 0 0 @rhythm;
padding: calc(5% + 20px);
background: #f00ba7 url(http://placehold.alpha-centauri/42.png) no-repeat;
background-image: linear-gradient(-135deg, wheat, fuchsia) !important ;
background-blend-mode: multiply;
}
@font-face {
font-family: /* ? */ 'Omega';
src: url('../fonts/omega-webfont.woff?v=2.0.2');
}
.icon-baz::before {
display: inline-block;
font-family: "Omega", Alpha, sans-serif;
content: "\f085";
color: rgba(98, 76 /* or 54 */, 231, .75);
}
Lua
--[[
Simple signal/slot implementation
]]
local signal_mt = {
__index = {
register = table.insert
}
}
function signal_mt.__index:emit(... --[[ Comment in params ]])
for _, slot in ipairs(self) do
slot(self, ...)
end
end
local function create_signal()
return setmetatable({}, signal_mt)
end
-- Signal test
local signal = create_signal()
signal:register(function(signal, ...)
print(...)
end)
signal:emit('Answer to Life, the Universe, and Everything:', 42)
--[==[ [=[ [[
Nested ]]
multi-line ]=]
comment ]==]
[==[ Nested
[=[ multi-line
[[ string
]] ]=] ]==]
Makefile
# Makefile
BUILDDIR = _build
EXTRAS ?= $(BUILDDIR)/extras
.PHONY: main clean
main:
@echo "Building main facility..."
build_main $(BUILDDIR)
clean:
rm -rf $(BUILDDIR)/*
Perl
# loads object
sub load
{
my $flds = $c->db_load($id,@_) || do {
Carp::carp "Can`t load (class: $c, id: $id): '$!'"; return undef
};
my $o = $c->_perl_new();
$id12 = $id / 24 / 3600;
$o->{'ID'} = $id12 + 123;
#$o->{'SHCUT'} = $flds->{'SHCUT'};
my $p = $o->props;
my $vt;
$string =~ m/^sought_text$/;
$items = split //, 'abc';
$string //= "bar";
for my $key (keys %$p)
{
if(${$vt.'::property'}) {
$o->{$key . '_real'} = $flds->{$key};
tie $o->{$key}, 'CMSBuilder::Property', $o, $key;
}
}
$o->save if delete $o->{'_save_after_load'};
# GH-117
my $g = glob("/usr/bin/*");
return $o;
}
__DATA__
@@ layouts/default.html.ep
<!DOCTYPE html>
<html>
<head><title><%= title %></title></head>
<body><%= content %></body>
</html>
__END__
=head1 NAME
POD till the end of file
Objective-C
#import <UIKit/UIKit.h>
#import "Dependency.h"
@protocol WorldDataSource
@optional
- (NSString*)worldName;
@required
- (BOOL)allowsToLive;
@end
@property (nonatomic, readonly) NSString *title;
- (IBAction) show;
@end
PHP
require_once 'Zend/Uri/Http.php';
namespace Location\Web;
interface Factory
{
static function _factory();
}
abstract class URI extends BaseURI implements Factory
{
abstract function test();
public static $st1 = 1;
const ME = "Yo";
var $list = NULL;
private $var;
/**
* Returns a URI
*
* @return URI
*/
static public function _factory($stats = array(), $uri = 'http')
{
echo __METHOD__;
$uri = explode(':', $uri, 0b10);
$schemeSpecific = isset($uri) ? $uri : '';
$desc = 'Multi
line description';
// Security check
if (!ctype_alnum($scheme)) {
throw new Zend_Uri_Exception('Illegal scheme');
}
$this->var = 0 - self::$st;
$this->list = list(Array("1"=> 2, 2=>self::ME, 3 => \Location\Web\URI::class));
return [
'uri' => $uri,
'value' => null,
];
}
}
match ($key) {
1 => 'Integer 1',
'1' => 'String 1',
true => 'Bool true',
[] => 'Empty array',
=> 'Array ',
};
enum Foo: string {
case Test = 'test';
}
echo URI::ME . URI::$st1;
__halt_compiler () ; datahere
datahere
datahere */
datahere
PHP Template
<html>
</html>
<body>
<?php
# Here echo command is used to print
echo "Hello, world!";
?>
</body>
Python
@requires_authorization(roles=["ADMIN"])
def somefunc(param1='', param2=0):
r'''A docstring'''
if param1 > param2: # interesting
print 'Gre\'ater'
return (param2 - param1 + 1 + 0b10l) or None
class SomeClass:
pass
>>> message = '''interpreter
... prompt'''
Python REPL
>>> v = "foo = 42"
>>> v
"foo = 42"
>>> print(v)
foo = 42
>>> print(repr(v).rstrip('"'))
"foo = 42
>>> print(repr(v).lstrip('"'))
foo = 42"
>>> """
... abc
... """
>>> def test():
... pass
R
require(stats)
#' Compute different averages
#'
#' @param x \code{numeric} vector of sample data
#' @param type \code{character} vector of length 1 specifying the average type
#' @return \code{centre} returns the sample average according to the chosen method.
#' @examples
#' centre(rcauchy(10), "mean")
#' @export
centre <- function(x, type) {
switch(type,
mean = mean(x),
median = median(x),
trimmed = mean(x, trim = .1))
}
x <- rcauchy(10)
centre(x, "mean")
library(ggplot2)
models <- tibble::tribble(
~model_name, ~ formula,
"length-width", Sepal.Length ~ Petal.Width + Petal.Length,
"interaction",Sepal.Length ~ Petal.Width * Petal.Length
)
iris %>%
nest_by(Species) %>%
left_join(models, by = character()) %>%
rowwise(Species, model_name) %>%
mutate(model = list(lm(formula, data = data))) %>%
summarise(broom::glance(model))
#> `summarise()` regrouping output by 'Species', 'model_name' (override with `.groups` argument)
#> # A tibble: 6 x 13
#> # Groups: Species, model_name
#> Species model_name r.squared adj.r.squared sigma statisticp.value df
#> <fct> <chr> <dbl> <dbl> <dbl> <dbl> <dbl> <int>
#> 1 setosalength-wi… 0.112 0.0739 0.339 2.96 6.18e- 2 3
#> 2 setosainteracti… 0.133 0.0760 0.339 2.34 8.54e- 2 4
#> 3 versic… length-wi… 0.574 0.5560.344 31.71.92e- 9 3
#> 4 versic… interacti… 0.577 0.5490.347 20.91.11e- 8 4
#> 5 virgin… length-wi… 0.747 0.7360.327 69.39.50e-15 3
#> 6 virgin… interacti… 0.757 0.7410.323 47.83.54e-14 4
#> # … with 5 more variables: logLik <dbl>, AIC <dbl>, BIC <dbl>, deviance <dbl>,
#> # df.residual <int>
Rust
#
pub enum State {
Start,
Transient,
Closed,
}
impl From<&'a str> for State {
fn from(s: &'a str) -> Self {
match s {
"start" => State::Start,
"closed" => State::Closed,
_ => unreachable!(),
}
}
}
SCSS
@import "compass/reset";
// variables
$colorGreen: #008000;
$colorGreenDark: darken($colorGreen, 10);
@mixin container {
max-width: 980px;
}
// mixins with parameters
@mixin button($color:green) {
@if ($color == green) {
background-color: #008000;
}
@else if ($color == red) {
background-color: #B22222;
}
}
button {
@include button(red);
}
div,
.navbar,
#header,
input {
font-family: "Helvetica Neue", Arial, sans-serif;
width: auto;
margin: 0 auto;
display: block;
}
.row-12 > {
border-left: 1px solid #B5C583;
}
// nested definitions
ul {
width: 100%;
padding: {
left: 5px; right: 5px;
}
li {
float: left; margin-right: 10px;
.home {
background: url('http://placehold.it/20') scroll no-repeat 0 0;
}
}
}
.banner {
@extend .container;
}
a {
color: $colorGreen;
&:hover { color: $colorGreenDark; }
&:visited { color: #c458cb; }
}
@for $i from 1 through 5 {
.span#{$i} {
width: 20px*$i;
}
}
@mixin mobile {
@media screen and (max-width : 600px) {
@content;
}
}
Shell Session
$ echo $EDITOR
vim
$ git checkout main
Switched to branch 'main'
Your branch is up-to-date with 'origin/main'.
$ git push
Everything up-to-date
$ echo 'All
> done!'
All
done!
SQL
CREATE TABLE "topic" (
"id" integer NOT NULL PRIMARY KEY,
"forum_id" integer NOT NULL,
"subject" varchar(255) NOT NULL
);
ALTER TABLE "topic"
ADD CONSTRAINT forum_id FOREIGN KEY ("forum_id")
REFERENCES "forum" ("id");
-- Initials
insert into "topic" ("forum_id", "subject")
values (2, 'D''artagnian');
Swift
import Foundation
@objc class Person: Entity {
var name: String!
var age:Int!
init(name: String, age: Int) {
/* /* ... */ */
}
// Return a descriptive string for this person
func description(offset: Int = 0) -> String {
return "\(name) is \(age + offset) years old"
}
}
YAML
---
# comment
string_1: "Bar"
string_2: 'bar'
string_3: bar
inline_keys_ignored: sompath/name/file.jpg
keywords_in_yaml:
- true
- false
- TRUE
- FALSE
- 21
- 21.0
- !!str 123
"quoted_key": &foobar
bar: foo
foo:
"foo": bar
reference: *foobar
multiline_1: |
Multiline
String
multiline_2: >
Multiline
String
multiline_3: "
Multiline string
"
ansible_variables: "foo {{variable}}"
array_nested:
- a
- b: 1
c: 2
- b
- comment
TypeScript
class MyClass {
public static myValue: string;
constructor(init: string) {
this.myValue = init;
}
}
import fs = require("fs");
module MyModule {
export interface MyInterface extends Other {
myProperty: any;
}
}
declare magicNumber number;
myArray.forEach(() => { }); // fat arrow syntax
Visual Basic .NET
Imports System
Imports System.IO
#Const DEBUG = True
Namespace Highlighter.Test
''' <summary>This is an example class.</summary>
Public Class Program
Protected Shared hello As Integer = 3
Private Const ABC As Boolean = False
#Region "Code"
' Cheers!
<STAThread()> _
Public Shared Sub Main(ByVal args() As String, ParamArray arr As Object) Handles Form1.Click
On Error Resume Next
If ABC Then
While ABC : Console.WriteLine() : End While
For i As Long = 0 To 1000 Step 123
Try
System.Windows.Forms.MessageBox.Show(CInt("1").ToString())
Catch ex As Exception ' What are you doing? Well...
Dim exp = CType(ex, IOException)
REM ORZ
Return
End Try
Next
Else
Dim l As New System.Collections.List<String>()
SyncLock l
If TypeOf l Is Decimal And l IsNot Nothing Then
RemoveHandler button1.Paint, delegate
End If
Dim d = New System.Threading.Thread(AddressOf ThreadProc)
Dim a = New Action(Sub(x, y) x + y)
Static u = From x As String In l Select x.Substring(2, 4) Where x.Length > 0
End SyncLock
Do : Laugh() : Loop Until hello = 4
End If
End Sub
#End Region
End Class
End Namespace
WebAssembly
(module
(import "js" "memory" (memory 1))
(import "js" "table" (table 1 funcref))
(type $void_to_i32 (func (result i32)))
(func (export "doIt") (result i32)
i32.const 0
i32.const 42
i32.store;; store 42 at address 0
i32.const 0
call_indirect (type $void_to_i32))
)
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