Commit 76d856
2023-11-29 21:45:06 Ralph Thesen: added example code blocks| /dev/null .. examples/syntax highlighting.md | |
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| + | # Syntax Highlighting |
| + | |
| + | On this page you can find examples on how An Otter Wiki highlights code block with a given syntax. |
| + | |
| + | A code block is fenced with three backticks `` ``` `` on the line before and after the code block. To add syntax highlighting specify the language next to the backticks of the first line, e.g. |
| + | |
| + | A fenced code block with langeuage yaml, like |
| + | |
| + | ```yaml |
| + | version: '3' |
| + | services: |
| + | otterwiki: |
| + | image: redimp/otterwiki:2.0 |
| + | ports: |
| + | - 8080:80 |
| + | ``` |
| + | |
| + | will be rendered as |
| + | |
| + | ```yaml |
| + | version: '3' |
| + | services: |
| + | otterwiki: |
| + | image: redimp/otterwiki:2.0 |
| + | ports: |
| + | - 8080:80 |
| + | ``` |
| + | |
| + | Examples for multiple other languages can be found below. All the examples implementing the Fibonacci sequence (and more examples in more languages) can be found on [rosettacode.org](https://rosettacode.org/wiki/Fibonacci_sequence). |
| + | |
| + | --- |
| + | |
| + | ### bash |
| + | |
| + | ```bash |
| + | fib() |
| + | { |
| + | if [ $1 -le 0 ] |
| + | then |
| + | echo 0 |
| + | return 0 |
| + | fi |
| + | if [ $1 -le 2 ] |
| + | then |
| + | echo 1 |
| + | else |
| + | a=$(fib $[$1-1]) |
| + | b=$(fib $[$1-2]) |
| + | echo $(($a+$b)) |
| + | fi |
| + | } |
| + | ``` |
| + | |
| + | ### C |
| + | |
| + | ```c |
| + | long long int fibb(int n) { |
| + | int fnow = 0, fnext = 1, tempf; |
| + | while(--n>0){ |
| + | tempf = fnow + fnext; |
| + | fnow = fnext; |
| + | fnext = tempf; |
| + | } |
| + | return fnext; |
| + | } |
| + | ``` |
| + | |
| + | ### C++ |
| + | |
| + | ```cpp |
| + | #include <numeric> |
| + | #include <vector> |
| + | #include <functional> |
| + | #include <iostream> |
| + | |
| + | unsigned int fibonacci(unsigned int n) { |
| + | if (n == 0) return 0; |
| + | std::vector<int> v(n, 1); |
| + | adjacent_difference(v.begin(), v.end()-1, v.begin()+1, std::plus<int>()); |
| + | // "array" now contains the Fibonacci sequence from 1 up |
| + | return v[n-1]; |
| + | } |
| + | ``` |
| + | |
| + | ### Dockerfile |
| + | |
| + | ```Dockerfile |
| + | FROM alpine:3.18.0 |
| + | MAINTAINER mail@example.com |
| + | |
| + | RUN set -ex \ |
| + | && apk update && apk upgrade \ |
| + | && apk add --no-cache \ |
| + | bash curl dhcping iftop httpie netcat-openbsd py3-pip \ |
| + | py3-setuptools vim git |
| + | |
| + | USER root |
| + | WORKDIR /root |
| + | ENV HOSTNAME toolkit |
| + | |
| + | CMD ["bash"] |
| + | ``` |
| + | |
| + | ### Go |
| + | |
| + | ```go |
| + | import ( |
| + | "math/big" |
| + | ) |
| + | |
| + | func fib(n uint64) *big.Int { |
| + | if n < 2 { |
| + | return big.NewInt(int64(n)) |
| + | } |
| + | a, b := big.NewInt(0), big.NewInt(1) |
| + | for n--; n > 0; n-- { |
| + | a.Add(a, b) |
| + | a, b = b, a |
| + | } |
| + | return b |
| + | } |
| + | ``` |
| + | |
| + | ### Haskell |
| + | |
| + | ```haskell |
| + | fib x = |
| + | if x < 1 |
| + | then 0 |
| + | else if x == 1 |
| + | then 1 |
| + | else fibs !! (x - 1) + fibs !! (x - 2) |
| + | where |
| + | fibs = map fib [0 ..] |
| + | ``` |
| + | |
| + | ### html |
| + | |
| + | ```html |
| + | <!DOCTYPE html> |
| + | <html> |
| + | <head> |
| + | <meta charset="UTF-8"> |
| + | <title>The title goes here</title> |
| + | </head> |
| + | <body> |
| + | <!-- a comment --> |
| + | The content goes here. |
| + | </body> |
| + | </html> |
| + | ``` |
| + | |
| + | ### json |
| + | |
| + | ```json |
| + | { |
| + | "mixed list": [ |
| + | "string", |
| + | 42 |
| + | ], |
| + | "object": { |
| + | "key": "value", |
| + | "array": [ |
| + | { |
| + | "null_value": null |
| + | }, |
| + | { |
| + | "boolean": true |
| + | }, |
| + | { |
| + | "float": 1.2 |
| + | } |
| + | ] |
| + | }, |
| + | "content": "Some lines\nwith line breaks" |
| + | } |
| + | ``` |
| + | |
| + | ### nginx |
| + | |
| + | ```nginx |
| + | user www www; |
| + | worker_processes 2; |
| + | pid /var/run/nginx.pid; |
| + | error_log /var/log/nginx.error_log debug | info | notice | warn | error | crit; |
| + | |
| + | events { |
| + | connections 2000; |
| + | use kqueue | rtsig | epoll | /dev/poll | select | poll; |
| + | } |
| + | |
| + | http { |
| + | log_format main '$remote_addr - $remote_user [$time_local] ' |
| + | '"$request" $status $bytes_sent ' |
| + | '"$http_referer" "$http_user_agent" ' |
| + | '"$gzip_ratio"'; |
| + | send_timeout 3m; |
| + | client_header_buffer_size 1k; |
| + | ... |
| + | ``` |
| + | |
| + | ### python |
| + | |
| + | ```python |
| + | def fibMemo(): |
| + | pad = {0:0, 1:1} |
| + | def func(n): |
| + | if n not in pad: |
| + | pad[n] = func(n-1) + func(n-2) |
| + | return pad[n] |
| + | return func |
| + | |
| + | fm = fibMemo() |
| + | for i in range(1,31): |
| + | print fm(i), |
| + | ``` |
| + | |
| + | ### php |
| + | |
| + | ```php |
| + | <?php |
| + | function fibIter($n) { |
| + | if ($n < 2) { |
| + | return $n; |
| + | } |
| + | $fibPrev = 0; |
| + | $fib = 1; |
| + | foreach (range(1, $n-1) as $i) { |
| + | list($fibPrev, $fib) = array($fib, $fib + $fibPrev); |
| + | } |
| + | return $fib; |
| + | } |
| + | ?> |
| + | ``` |
| + | |
| + | ### rust |
| + | |
| + | ```rust |
| + | use std::mem; |
| + | fn main() { |
| + | fibonacci(0,1); |
| + | } |
| + | |
| + | fn fibonacci(mut prev: usize, mut curr: usize) { |
| + | mem::swap(&mut prev, &mut curr); |
| + | if let Some(n) = curr.checked_add(prev) { |
| + | println!("{}", n); |
| + | fibonacci(prev, n); |
| + | } |
| + | } |
| + | ``` |
| + | |
| + | ### yaml |
| + | |
| + | ```yaml |
| + | --- |
| + | mixed list: |
| + | - string |
| + | - 42 |
| + | object: |
| + | key: value |
| + | array: |
| + | - null_value: |
| + | - boolean: true |
| + | - float: 1.2 |
| + | content: |- |
| + | Some lines |
| + | with line breaks |
| + | ``` |
| + | |
| + | ### xml |
| + | |
| + | ```xml |
| + | <?xml version="1.0" encoding="UTF-8" ?> |
| + | <root> |
| + | <mixed_list>string</mixed_list> |
| + | <mixed_list>42</mixed_list> |
| + | <object> |
| + | <key>value</key> |
| + | <array> |
| + | <null_value /> |
| + | </array> |
| + | <array> |
| + | <boolean>true</boolean> |
| + | </array> |
| + | <array> |
| + | <float>1.2</float> |
| + | </array> |
| + | </object> |
| + | <content>Some lines |
| + | with line breaks</content> |
| + | </root> |
| + | ``` |