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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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101
vendor/github.com/alecthomas/chroma/lexers/a/antlr.go generated vendored Normal file
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@ -0,0 +1,101 @@
package a
import (
. "github.com/alecthomas/chroma" // nolint
"github.com/alecthomas/chroma/lexers/internal"
)
// ANTLR lexer.
var ANTLR = internal.Register(MustNewLexer(
&Config{
Name: "ANTLR",
Aliases: []string{"antlr"},
Filenames: []string{},
MimeTypes: []string{},
},
Rules{
"whitespace": {
{`\s+`, TextWhitespace, nil},
},
"comments": {
{`//.*$`, Comment, nil},
{`/\*(.|\n)*?\*/`, Comment, nil},
},
"root": {
Include("whitespace"),
Include("comments"),
{`(lexer|parser|tree)?(\s*)(grammar\b)(\s*)([A-Za-z]\w*)(;)`, ByGroups(Keyword, TextWhitespace, Keyword, TextWhitespace, NameClass, Punctuation), nil},
{`options\b`, Keyword, Push("options")},
{`tokens\b`, Keyword, Push("tokens")},
{`(scope)(\s*)([A-Za-z]\w*)(\s*)(\{)`, ByGroups(Keyword, TextWhitespace, NameVariable, TextWhitespace, Punctuation), Push("action")},
{`(catch|finally)\b`, Keyword, Push("exception")},
{`(@[A-Za-z]\w*)(\s*)(::)?(\s*)([A-Za-z]\w*)(\s*)(\{)`, ByGroups(NameLabel, TextWhitespace, Punctuation, TextWhitespace, NameLabel, TextWhitespace, Punctuation), Push("action")},
{`((?:protected|private|public|fragment)\b)?(\s*)([A-Za-z]\w*)(!)?`, ByGroups(Keyword, TextWhitespace, NameLabel, Punctuation), Push("rule-alts", "rule-prelims")},
},
"exception": {
{`\n`, TextWhitespace, Pop(1)},
{`\s`, TextWhitespace, nil},
Include("comments"),
{`\[`, Punctuation, Push("nested-arg-action")},
{`\{`, Punctuation, Push("action")},
},
"rule-prelims": {
Include("whitespace"),
Include("comments"),
{`returns\b`, Keyword, nil},
{`\[`, Punctuation, Push("nested-arg-action")},
{`\{`, Punctuation, Push("action")},
{`(throws)(\s+)([A-Za-z]\w*)`, ByGroups(Keyword, TextWhitespace, NameLabel), nil},
{`(,)(\s*)([A-Za-z]\w*)`, ByGroups(Punctuation, TextWhitespace, NameLabel), nil},
{`options\b`, Keyword, Push("options")},
{`(scope)(\s+)(\{)`, ByGroups(Keyword, TextWhitespace, Punctuation), Push("action")},
{`(scope)(\s+)([A-Za-z]\w*)(\s*)(;)`, ByGroups(Keyword, TextWhitespace, NameLabel, TextWhitespace, Punctuation), nil},
{`(@[A-Za-z]\w*)(\s*)(\{)`, ByGroups(NameLabel, TextWhitespace, Punctuation), Push("action")},
{`:`, Punctuation, Pop(1)},
},
"rule-alts": {
Include("whitespace"),
Include("comments"),
{`options\b`, Keyword, Push("options")},
{`:`, Punctuation, nil},
{`'(\\\\|\\'|[^'])*'`, LiteralString, nil},
{`"(\\\\|\\"|[^"])*"`, LiteralString, nil},
{`<<([^>]|>[^>])>>`, LiteralString, nil},
{`\$?[A-Z_]\w*`, NameConstant, nil},
{`\$?[a-z_]\w*`, NameVariable, nil},
{`(\+|\||->|=>|=|\(|\)|\.\.|\.|\?|\*|\^|!|\#|~)`, Operator, nil},
{`,`, Punctuation, nil},
{`\[`, Punctuation, Push("nested-arg-action")},
{`\{`, Punctuation, Push("action")},
{`;`, Punctuation, Pop(1)},
},
"tokens": {
Include("whitespace"),
Include("comments"),
{`\{`, Punctuation, nil},
{`([A-Z]\w*)(\s*)(=)?(\s*)(\'(?:\\\\|\\\'|[^\']*)\')?(\s*)(;)`, ByGroups(NameLabel, TextWhitespace, Punctuation, TextWhitespace, LiteralString, TextWhitespace, Punctuation), nil},
{`\}`, Punctuation, Pop(1)},
},
"options": {
Include("whitespace"),
Include("comments"),
{`\{`, Punctuation, nil},
{`([A-Za-z]\w*)(\s*)(=)(\s*)([A-Za-z]\w*|\'(?:\\\\|\\\'|[^\']*)\'|[0-9]+|\*)(\s*)(;)`, ByGroups(NameVariable, TextWhitespace, Punctuation, TextWhitespace, Text, TextWhitespace, Punctuation), nil},
{`\}`, Punctuation, Pop(1)},
},
"action": {
{`([^${}\'"/\\]+|"(\\\\|\\"|[^"])*"|'(\\\\|\\'|[^'])*'|//.*$\n?|/\*(.|\n)*?\*/|/(?!\*)(\\\\|\\/|[^/])*/|\\(?!%)|/)+`, Other, nil},
{`(\\)(%)`, ByGroups(Punctuation, Other), nil},
{`(\$[a-zA-Z]+)(\.?)(text|value)?`, ByGroups(NameVariable, Punctuation, NameProperty), nil},
{`\{`, Punctuation, Push()},
{`\}`, Punctuation, Pop(1)},
},
"nested-arg-action": {
{`([^$\[\]\'"/]+|"(\\\\|\\"|[^"])*"|'(\\\\|\\'|[^'])*'|//.*$\n?|/\*(.|\n)*?\*/|/(?!\*)(\\\\|\\/|[^/])*/|/)+`, Other, nil},
{`\[`, Punctuation, Push()},
{`\]`, Punctuation, Pop(1)},
{`(\$[a-zA-Z]+)(\.?)(text|value)?`, ByGroups(NameVariable, Punctuation, NameProperty), nil},
{`(\\\\|\\\]|\\\[|[^\[\]])+`, Other, nil},
},
},
))