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Server-side syntax highlighting for all code (#12047)

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* Server-side syntax hilighting for all code

This PR does a few things:

* Remove all traces of highlight.js
* Use chroma library to provide fast syntax hilighting directly on the server
* Provide syntax hilighting for diffs
* Re-style both unified and split diffs views
* Add custom syntax hilighting styling for both regular and arc-green

Fixes #7729
Fixes #10157
Fixes #11825
Fixes #7728
Fixes #3872
Fixes #3682

And perhaps gets closer to #9553

* fix line marker

* fix repo search

* Fix single line select

* properly load settings

* npm uninstall highlight.js

* review suggestion

* code review

* forgot to call function

* fix test

* Apply suggestions from code review

suggestions from @silverwind thanks

Co-authored-by: silverwind <me@silverwind.io>

* code review

* copy/paste error

* Use const for highlight size limit

* Update web_src/less/_repository.less

Co-authored-by: Lauris BH <lauris@nix.lv>

* update size limit to 1MB and other styling tweaks

* fix highlighting for certain diff sections

* fix test

* add worker back as suggested

Co-authored-by: silverwind <me@silverwind.io>
Co-authored-by: Lauris BH <lauris@nix.lv>
This commit is contained in:
mrsdizzie 2020-06-30 17:34:03 -04:00 • committed by GitHub
parent ce5f2b9845
commit af7ffaa279
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336 changed files with 37293 additions and 769 deletions
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56
vendor/github.com/alecthomas/chroma/lexers/h/handlebars.go generated vendored Normal file
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@ -0,0 +1,56 @@
package h
import (
. "github.com/alecthomas/chroma" // nolint
"github.com/alecthomas/chroma/lexers/internal"
)
// Handlebars lexer.
var Handlebars = internal.Register(MustNewLexer(
&Config{
Name: "Handlebars",
Aliases: []string{"handlebars"},
Filenames: []string{"*.handlebars"},
MimeTypes: []string{},
},
Rules{
"root": {
{`[^{]+`, Other, nil},
{`\{\{!.*\}\}`, Comment, nil},
{`(\{\{\{)(\s*)`, ByGroups(CommentSpecial, Text), Push("tag")},
{`(\{\{)(\s*)`, ByGroups(CommentPreproc, Text), Push("tag")},
},
"tag": {
{`\s+`, Text, nil},
{`\}\}\}`, CommentSpecial, Pop(1)},
{`\}\}`, CommentPreproc, Pop(1)},
{`([#/]*)(each|if|unless|else|with|log|in(?:line)?)`, ByGroups(Keyword, Keyword), nil},
{`#\*inline`, Keyword, nil},
{`([#/])([\w-]+)`, ByGroups(NameFunction, NameFunction), nil},
{`([\w-]+)(=)`, ByGroups(NameAttribute, Operator), nil},
{`(>)(\s*)(@partial-block)`, ByGroups(Keyword, Text, Keyword), nil},
{`(#?>)(\s*)([\w-]+)`, ByGroups(Keyword, Text, NameVariable), nil},
{`(>)(\s*)(\()`, ByGroups(Keyword, Text, Punctuation), Push("dynamic-partial")},
Include("generic"),
},
"dynamic-partial": {
{`\s+`, Text, nil},
{`\)`, Punctuation, Pop(1)},
{`(lookup)(\s+)(\.|this)(\s+)`, ByGroups(Keyword, Text, NameVariable, Text), nil},
{`(lookup)(\s+)(\S+)`, ByGroups(Keyword, Text, UsingSelf("variable")), nil},
{`[\w-]+`, NameFunction, nil},
Include("generic"),
},
"variable": {
{`[a-zA-Z][\w-]*`, NameVariable, nil},
{`\.[\w-]+`, NameVariable, nil},
{`(this\/|\.\/|(\.\.\/)+)[\w-]+`, NameVariable, nil},
},
"generic": {
Include("variable"),
{`:?"(\\\\|\\"|[^"])*"`, LiteralStringDouble, nil},
{`:?'(\\\\|\\'|[^'])*'`, LiteralStringSingle, nil},
{`[0-9](\.[0-9]*)?(eE[+-][0-9])?[flFLdD]?|0[xX][0-9a-fA-F]+[Ll]?`, LiteralNumber, nil},
},
},
))