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Prism.languages.fsharp = Prism.languages.extend('clike', {
comment: [
{
pattern: /(^|[^\\])\(\*(?!\))[\s\S]*?\*\)/,
lookbehind: true,
greedy: true,
},
{
pattern: /(^|[^\\:])\/\/.*/,
lookbehind: true,
greedy: true,
},
],
string: {
pattern: /(?:"""[\s\S]*?"""|@"(?:""|[^"])*"|"(?:\\[\s\S]|[^\\"])*")B?/,
greedy: true,
},
'class-name': {
pattern:
/(\b(?:exception|inherit|interface|new|of|type)\s+|\w\s*:\s*|\s:\??>\s*)[.\w]+\b(?:\s*(?:->|\*)\s*[.\w]+\b)*(?!\s*[:.])/,
lookbehind: true,
inside: {
operator: /->|\*/,
punctuation: /\./,
},
},
keyword:
/\b(?:let|return|use|yield)(?:!\B|\b)|\b(?:abstract|and|as|asr|assert|atomic|base|begin|break|checked|class|component|const|constraint|constructor|continue|default|delegate|do|done|downcast|downto|eager|elif|else|end|event|exception|extern|external|false|finally|fixed|for|fun|function|functor|global|if|in|include|inherit|inline|interface|internal|land|lazy|lor|lsl|lsr|lxor|match|member|method|mixin|mod|module|mutable|namespace|new|not|null|object|of|open|or|override|parallel|private|process|protected|public|pure|rec|sealed|select|sig|static|struct|tailcall|then|to|trait|true|try|type|upcast|val|virtual|void|volatile|when|while|with)\b/,
number: [
/\b0x[\da-fA-F]+(?:LF|lf|un)?\b/,
/\b0b[01]+(?:uy|y)?\b/,
/(?:\b\d+(?:\.\d*)?|\B\.\d+)(?:[fm]|e[+-]?\d+)?\b/i,
/\b\d+(?:[IlLsy]|UL|u[lsy]?)?\b/,
],
operator:
/([<>~&^])\1\1|([*.:<>&])\2|<-|->|[!=:]=|<?\|{1,3}>?|\??(?:<=|>=|<>|[-+*/%=<>])\??|[!?^&]|~[+~-]|:>|:\?>?/,
});
Prism.languages.insertBefore('fsharp', 'keyword', {
preprocessor: {
pattern: /(^[\t ]*)#.*/m,
lookbehind: true,
alias: 'property',
inside: {
directive: {
pattern: /(^#)\b(?:else|endif|if|light|line|nowarn)\b/,
lookbehind: true,
alias: 'keyword',
},
},
},
});
Prism.languages.insertBefore('fsharp', 'punctuation', {
'computation-expression': {
pattern: /\b[_a-z]\w*(?=\s*\{)/i,
alias: 'keyword',
},
});
Prism.languages.insertBefore('fsharp', 'string', {
annotation: {
pattern: /\[<.+?>\]/,
greedy: true,
inside: {
punctuation: /^\[<|>\]$/,
'class-name': {
pattern: /^\w+$|(^|;\s*)[A-Z]\w*(?=\()/,
lookbehind: true,
},
'annotation-content': {
pattern: /[\s\S]+/,
inside: Prism.languages.fsharp,
},
},
},
char: {
pattern:
/'(?:[^\\']|\\(?:.|\d{3}|x[a-fA-F\d]{2}|u[a-fA-F\d]{4}|U[a-fA-F\d]{8}))'B?/,
greedy: true,
},
});
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