Syntax highlighting determines the color and style of source code displayed in the Visual Studio Code editor. It is responsible for colorizing keywords like if or for in JavaScript differently than strings and comments and variable names.,The Color Theme guide describes how to create a color theme. Theming for semantic tokens is explained in the Semantic Highlighting guide.,Themes map scopes to colors and styles to provide syntax highlighting. TextMate provides list of common scopes that many themes target. In order to have your grammar as broadly supported as possible, try to build on existing scopes rather than defining new ones.,The TextMate tokenization engine runs in the same process as the renderer and tokens are updated as the user types. Tokens are used for syntax highlighting, but also to classify the source code into areas of comments, strings, regex.
Each grammar contribution specifies: the identifier of the language the grammar applies to, the top-level scope name for the tokens of the grammar, and the relative path to a grammar file. The example below shows a grammar contribution for a fictional abc language:
{
"contributes": {
"languages": [{
"id": "abc",
"extensions": [".abc"]
}],
"grammars": [{
"language": "abc",
"scopeName": "source.abc",
"path": "./syntaxes/abc.tmGrammar.json"
}]
}
}The example abc grammar marks the letters a, b, and c as keywords, and nestings of parens as expressions.
{
"scopeName": "source.abc",
"patterns": [{
"include": "#expression"
}],
"repository": {
"expression": {
"patterns": [{
"include": "#letter"
}, {
"include": "#paren-expression"
}]
},
"letter": {
"match": "a|b|c",
"name": "keyword.letter"
},
"paren-expression": {
"begin": "\\(",
"end": "\\)",
"beginCaptures": {
"0": {
"name": "punctuation.paren.open"
}
},
"endCaptures": {
"0": {
"name": "punctuation.paren.close"
}
},
"name": "expression.group",
"patterns": [{
"include": "#expression"
}]
}
}
}The grammar engine will try to successively apply the expression rule to all text in the document. For a simple program such as:
a
(
b
)
x
(
(
c xyz
)
)
(
aThe embeddedLanguages contribution point maps a scope in the embedded language to a top-level language scope. In the example below, any tokens in the meta.embedded.block.javascript scope will be treated as JavaScript content:
{
"contributes": {
"grammars": [{
"path": "./syntaxes/abc.tmLanguage.json",
"scopeName": "source.abc",
"embeddedLanguages": {
"meta.embedded.block.javascript": "javascript"
}
}]
}
}VS Code can only load json grammars, so yaml based grammars must be converted to json. The js-yaml package and command-line tool makes this easy.
# Install js - yaml as a development only dependency in your extension $ npm install js - yaml--save - dev # Use the command - line tool to convert the yaml grammar to json $ npx js - yaml syntaxes / abc.tmLanguage.yaml > syntaxes / abc.tmLanguage.json
vsliv368cf: 30146710 vsreu685: 30147344 python383: 30185418 pythonvspyt602: 30300191 vspor879: 30202332 vspor708: 30202333 vspor363: 30204092 vswsl492cf: 30256860 vstes627: 30244334 pythonvspyt639: 30300192 pythontb: 30283811 pythonptprofiler: 30281270 vshan820: 30294714 vstes263: 30335439 pythondataviewer: 30285071 pythonvsuse255: 30340121 vscod805: 30301674 pythonvspyt200: 30340761 vscextlang: 30333561 binariesv615: 30325510 vsccppwt: 30364497 pythonvssor306: 30344512 bridge0708: 30335490 pygetstartedc2: 30360494 bridge0723: 30353136 pythonrunftest32: 30365366 pythonf5test824: 30361777 javagetstartedc: 30364665 pythonvspyt187cf: 30365362 pydsgst2: 30361792 vssid140: 30363603 vssur157: 30367808
I've searched the VSCode theme files and they don't seem to make any mention of URLs or links or any regex involving "http.*" or anything. So where the heck is that syntax highlighting rule defined and how can I tweak it?,Connect and share knowledge within a single location that is structured and easy to search.,One answer is to just turn off linkifying of URLs altogether:, Oh, wow, I was about to conclude that this was impossible, based on github.com/microsoft/vscode/wiki/Semantic-Highlighting-Overview But sure enough, your solution works! I never would've figured that out in a million years. Thank you! – dreeves Apr 30 at 20:01
One answer is to just turn off linkifying of URLs altogether:
"[html]": {
"editor.links": false
},Open VS Code editor to change the syntax colors.,To change the text and syntax colors in visual studio code follow the steps given below:, Visual Studio Code ,To change the syntax colors, follow the steps in the below video tutorials.
"editor.tokenColorCustomizations": {
"textMateRules": [{
"scope": [
"support.function.session.php",
],
"settings": {
"foreground": "#569CD6",
}
}, ]
}