chroma 是纯go 实现的代码高亮库，支持大部分的Pygments 功能。
使用示例：
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package main
import (
"fmt"
"os"
"github.com/alecthomas/chroma/quick"
)
var someSourceCode = `
package main
import "fmt"
func main() {
fmt.Println("Hello, 世界")
}
`
func main() {
err := quick.Highlight(os.Stdout, someSourceCode, "go", "html", "monokai")
if err != nil {
fmt.Println(err)
}
}
输出：
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<html>
<style type="text/css">
/* Background */ .chroma { color: #f8f8f2; background-color: #272822 }
/* Error */ .chroma .err { color: #960050; background-color: #1e0010 }
/* LineTableTD */ .chroma .lntd { ; vertical-align: top; padding: 0; margin: 0; border: 0; }
/* LineTable */ .chroma .lntable { ; border-spacing: 0; padding: 0; margin: 0; border: 0; width: 100%; overflow: auto; display: block; }
/* LineHighlight */ .chroma .hl { background-color: #3c3d38; display: block; width: 100% }
/* LineNumbersTable */ .chroma .lnt { color: #7c7c79; margin-right: 0.4em; padding: 0 0.4em 0 0.4em; display: block; }
/* LineNumbers */ .chroma .ln { color: #7c7c79; margin-right: 0.4em; padding: 0 0.4em 0 0.4em; }
/* Keyword */ .chroma .k { color: #66d9ef }
/* KeywordConstant */ .chroma .kc { color: #66d9ef }
/* KeywordDeclaration */ .chroma .kd { color: #66d9ef }
/* KeywordNamespace */ .chroma .kn { color: #f92672 }
/* KeywordPseudo */ .chroma .kp { color: #66d9ef }
/* KeywordReserved */ .chroma .kr { color: #66d9ef }
/* KeywordType */ .chroma .kt { color: #66d9ef }
/* NameAttribute */ .chroma .na { color: #a6e22e }
/* NameClass */ .chroma .nc { color: #a6e22e }
/* NameConstant */ .chroma .no { color: #66d9ef }
/* NameDecorator */ .chroma .nd { color: #a6e22e }
/* NameException */ .chroma .ne { color: #a6e22e }
/* NameFunction */ .chroma .nf { color: #a6e22e }
/* NameOther */ .chroma .nx { color: #a6e22e }
/* NameTag */ .chroma .nt { color: #f92672 }
/* Literal */ .chroma .l { color: #ae81ff }
/* LiteralDate */ .chroma .ld { color: #e6db74 }
/* LiteralString */ .chroma .s { color: #e6db74 }
/* LiteralStringAffix */ .chroma .sa { color: #e6db74 }
/* LiteralStringBacktick */ .chroma .sb { color: #e6db74 }
/* LiteralStringChar */ .chroma .sc { color: #e6db74 }
/* LiteralStringDelimiter */ .chroma .dl { color: #e6db74 }
/* LiteralStringDoc */ .chroma .sd { color: #e6db74 }
/* LiteralStringDouble */ .chroma .s2 { color: #e6db74 }
/* LiteralStringEscape */ .chroma .se { color: #ae81ff }
/* LiteralStringHeredoc */ .chroma .sh { color: #e6db74 }
/* LiteralStringInterpol */ .chroma .si { color: #e6db74 }
/* LiteralStringOther */ .chroma .sx { color: #e6db74 }
/* LiteralStringRegex */ .chroma .sr { color: #e6db74 }
/* LiteralStringSingle */ .chroma .s1 { color: #e6db74 }
/* LiteralStringSymbol */ .chroma .ss { color: #e6db74 }
/* LiteralNumber */ .chroma .m { color: #ae81ff }
/* LiteralNumberBin */ .chroma .mb { color: #ae81ff }
/* LiteralNumberFloat */ .chroma .mf { color: #ae81ff }
/* LiteralNumberHex */ .chroma .mh { color: #ae81ff }
/* LiteralNumberInteger */ .chroma .mi { color: #ae81ff }
/* LiteralNumberIntegerLong */ .chroma .il { color: #ae81ff }
/* LiteralNumberOct */ .chroma .mo { color: #ae81ff }
/* Operator */ .chroma .o { color: #f92672 }
/* OperatorWord */ .chroma .ow { color: #f92672 }
/* Comment */ .chroma .c { color: #75715e }
/* CommentHashbang */ .chroma .ch { color: #75715e }
/* CommentMultiline */ .chroma .cm { color: #75715e }
/* CommentSingle */ .chroma .c1 { color: #75715e }
/* CommentSpecial */ .chroma .cs { color: #75715e }
/* CommentPreproc */ .chroma .cp { color: #75715e }
/* CommentPreprocFile */ .chroma .cpf { color: #75715e }
/* GenericDeleted */ .chroma .gd { color: #f92672 }
/* GenericEmph */ .chroma .ge { font-style: italic }
/* GenericInserted */ .chroma .gi { color: #a6e22e }
/* GenericStrong */ .chroma .gs { font-weight: bold }
/* GenericSubheading */ .chroma .gu { color: #75715e }
body { color: #f8f8f2; background-color: #272822; }
</style><body class="chroma">
<pre class="chroma">
<span class="kd">var</span> <span class="nx">s</span> <span class="kt">string</span>
<span class="kd">var</span> <span class="nx">words</span> <span class="p">[]</span><span class="kt">string</span>
<span class="nx">use_hmm</span> <span class="o">:=</span> <span class="kc">true</span>
<span class="nx">x</span> <span class="o">:=</span> <span class="nx">gojieba</span><span class="p">.</span><span class="nx">NewJieba</span><span class="p">()</span>
<span class="k">defer</span> <span class="nx">x</span><span class="p">.</span><span class="nx">Free</span><span class="p">()</span>
<span class="nx">s</span> <span class="p">=</span> <span class="s">"我来到北京清华大学"</span>
<span class="nx">words</span> <span class="p">=</span> <span class="nx">x</span><span class="p">.</span><span class="nx">CutAll</span><span class="p">(</span><span class="nx">s</span><span class="p">)</span>
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="nx">s</span><span class="p">)</span>
<span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"全模式:"</span><span class="p">,</span> <span class="nx">strings</span><span class="p">.</span><span class="nx">Join</span><span class="p">(</span><span class="nx">words</span><span class="p">,</span> <span class="s">"/"</span><span class="p">))</span>
</pre>
</body>
</html>
相关项目地址
- Pygments http://pygments.org/
- chroma https://github.com/alecthomas/chroma
chroma 支持的语言很多，本站就是使用 chroma 在后端作代码高亮处理。
支持语言
| 前缀 | 语言 |
|---|---|
| A | ABAP, ABNF, ActionScript, ActionScript 3, Ada, Angular2, ANTLR, ApacheConf, APL, AppleScript, Arduino, Awk |
| B | Ballerina, Base Makefile, Bash, Batchfile, BibTeX, BlitzBasic, BNF, Brainfuck |
| C | C, C#, C++, Caddyfile, Caddyfile Directives, Cap'n Proto, Cassandra CQL, Ceylon, CFEngine3, cfstatement, ChaiScript, Cheetah, Clojure, CMake, COBOL, CoffeeScript, Common Lisp, Coq, Crystal, CSS, Cython |
| D | D, Dart, Diff, Django/Jinja, Docker, DTD |
| E | EBNF, Elixir, Elm, EmacsLisp, Erlang |
| F | Factor, Fish, Forth, Fortran, FSharp |
| G | GAS, GDScript, Genshi, Genshi HTML, Genshi Text, Gherkin, GLSL, Gnuplot, Go, Go HTML Template, Go Text Template, GraphQL, Groovy |
| H | Handlebars, Haskell, Haxe, HCL, Hexdump, HLB, HTML, HTTP, Hy |
| I | Idris, Igor, INI, Io |
| J | J, Java, JavaScript, JSON, Julia, Jungle |
| K | Kotlin |
| L | Lighttpd configuration file, LLVM, Lua |
| M | Mako, markdown, Mason, Mathematica, Matlab, MiniZinc, MLIR, Modula-2, MonkeyC, MorrowindScript, Myghty, MySQL |
| N | NASM, Newspeak, Nginx configuration file, Nim, Nix |
| O | Objective-C, OCaml, Octave, OpenSCAD, Org Mode |
| P | PacmanConf, Perl, PHP, PHTML, Pig, PkgConfig, PL/pgSQL, plaintext, Pony, PostgreSQL SQL dialect, PostScript, POVRay, PowerShell, Prolog, PromQL, Protocol Buffer, Puppet, Python, Python 3 |
| Q | QBasic |
| R | R, Racket, Ragel, react, ReasonML, reg, reStructuredText, Rexx, Ruby, Rust |
| S | SAS, Sass, Scala, Scheme, Scilab, SCSS, Smalltalk, Smarty, Snobol, Solidity, SPARQL, SQL, SquidConf, Standard ML, Stylus, Swift, SYSTEMD, systemverilog |
| T | TableGen, TASM, Tcl, Tcsh, Termcap, Terminfo, Terraform, TeX, Thrift, TOML, TradingView, Transact-SQL, Turing, Turtle, Twig, TypeScript, TypoScript, TypoScriptCssData, TypoScriptHtmlData |
| V | VB.net, verilog, VHDL, VimL, vue |
| W | WDTE |
| X | XML, Xorg |
| Y | YAML, YANG |
| Z | Zig |
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