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(function (Prism) {
var multilineComment = /\/\*(?:[^*/]|\*(?!\/)|\/(?!\*)|<self>)*\*\//.source;
for (var i = 0; i < 2; i++) {
// support 4 levels of nested comments
multilineComment = multilineComment.replace(/<self>/g, function () {
return multilineComment;
});
}
multilineComment = multilineComment.replace(/<self>/g, function () {
return /[^\s\S]/.source;
});
Prism.languages.rust = {
comment: [
{
pattern: RegExp(/(^|[^\\])/.source + multilineComment),
lookbehind: true,
greedy: true,
},
{
pattern: /(^|[^\\:])\/\/.*/,
lookbehind: true,
greedy: true,
},
],
string: {
pattern: /b?"(?:\\[\s\S]|[^\\"])*"|b?r(#*)"(?:[^"]|"(?!\1))*"\1/,
greedy: true,
},
char: {
pattern:
/b?'(?:\\(?:x[0-7][\da-fA-F]|u\{(?:[\da-fA-F]_*){1,6}\}|.)|[^\\\r\n\t'])'/,
greedy: true,
},
attribute: {
pattern: /#!?\[(?:[^\[\]"]|"(?:\\[\s\S]|[^\\"])*")*\]/,
greedy: true,
alias: 'attr-name',
inside: {
string: null, // see below
},
},
// Closure params should not be confused with bitwise OR |
'closure-params': {
pattern: /([=(,:]\s*|\bmove\s*)\|[^|]*\||\|[^|]*\|(?=\s*(?:\{|->))/,
lookbehind: true,
greedy: true,
inside: {
'closure-punctuation': {
pattern: /^\||\|$/,
alias: 'punctuation',
},
rest: null, // see below
},
},
'lifetime-annotation': {
pattern: /'\w+/,
alias: 'symbol',
},
'fragment-specifier': {
pattern: /(\$\w+:)[a-z]+/,
lookbehind: true,
alias: 'punctuation',
},
variable: /\$\w+/,
'function-definition': {
pattern: /(\bfn\s+)\w+/,
lookbehind: true,
alias: 'function',
},
'type-definition': {
pattern: /(\b(?:enum|struct|trait|type|union)\s+)\w+/,
lookbehind: true,
alias: 'class-name',
},
'module-declaration': [
{
pattern: /(\b(?:crate|mod)\s+)[a-z][a-z_\d]*/,
lookbehind: true,
alias: 'namespace',
},
{
pattern:
/(\b(?:crate|self|super)\s*)::\s*[a-z][a-z_\d]*\b(?:\s*::(?:\s*[a-z][a-z_\d]*\s*::)*)?/,
lookbehind: true,
alias: 'namespace',
inside: {
punctuation: /::/,
},
},
],
keyword: [
// https://github.com/rust-lang/reference/blob/master/src/keywords.md
/\b(?:Self|abstract|as|async|await|become|box|break|const|continue|crate|do|dyn|else|enum|extern|final|fn|for|if|impl|in|let|loop|macro|match|mod|move|mut|override|priv|pub|ref|return|self|static|struct|super|trait|try|type|typeof|union|unsafe|unsized|use|virtual|where|while|yield)\b/,
// primitives and str
// https://doc.rust-lang.org/stable/rust-by-example/primitives.html
/\b(?:bool|char|f(?:32|64)|[ui](?:8|16|32|64|128|size)|str)\b/,
],
// functions can technically start with an upper-case letter, but this will introduce a lot of false positives
// and Rust's naming conventions recommend snake_case anyway.
// https://doc.rust-lang.org/1.0.0/style/style/naming/README.html
function: /\b[a-z_]\w*(?=\s*(?:::\s*<|\())/,
macro: {
pattern: /\b\w+!/,
alias: 'property',
},
constant: /\b[A-Z_][A-Z_\d]+\b/,
'class-name': /\b[A-Z]\w*\b/,
namespace: {
pattern: /(?:\b[a-z][a-z_\d]*\s*::\s*)*\b[a-z][a-z_\d]*\s*::(?!\s*<)/,
inside: {
punctuation: /::/,
},
},
// Hex, oct, bin, dec numbers with visual separators and type suffix
number:
/\b(?:0x[\dA-Fa-f](?:_?[\dA-Fa-f])*|0o[0-7](?:_?[0-7])*|0b[01](?:_?[01])*|(?:(?:\d(?:_?\d)*)?\.)?\d(?:_?\d)*(?:[Ee][+-]?\d+)?)(?:_?(?:f32|f64|[iu](?:8|16|32|64|size)?))?\b/,
boolean: /\b(?:false|true)\b/,
punctuation: /->|\.\.=|\.{1,3}|::|[{}[\];(),:]/,
operator: /[-+*\/%!^]=?|=[=>]?|&[&=]?|\|[|=]?|<<?=?|>>?=?|[@?]/,
};
Prism.languages.rust['closure-params'].inside.rest = Prism.languages.rust;
Prism.languages.rust['attribute'].inside['string'] =
Prism.languages.rust['string'];
})(Prism);
|
