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Prism.languages.icon = {
comment: /#.*/,
string: {
pattern: /(["'])(?:(?!\1)[^\\\r\n_]|\\.|_(?!\1)(?:\r\n|[\s\S]))*\1/,
greedy: true,
},
number: /\b(?:\d+r[a-z\d]+|\d+(?:\.\d+)?(?:e[+-]?\d+)?)\b|\.\d+\b/i,
'builtin-keyword': {
pattern:
/&(?:allocated|ascii|clock|collections|cset|current|date|dateline|digits|dump|e|error(?:number|text|value)?|errout|fail|features|file|host|input|lcase|letters|level|line|main|null|output|phi|pi|pos|progname|random|regions|source|storage|subject|time|trace|ucase|version)\b/,
alias: 'variable',
},
directive: {
pattern: /\$\w+/,
alias: 'builtin',
},
keyword:
/\b(?:break|by|case|create|default|do|else|end|every|fail|global|if|initial|invocable|link|local|next|not|of|procedure|record|repeat|return|static|suspend|then|to|until|while)\b/,
function: /\b(?!\d)\w+(?=\s*[({]|\s*!\s*\[)/,
operator:
/[+-]:(?!=)|(?:[\/?@^%&]|\+\+?|--?|==?=?|~==?=?|\*\*?|\|\|\|?|<(?:->?|<?=?)|>>?=?)(?::=)?|:(?:=:?)?|[!.\\|~]/,
punctuation: /[\[\](){},;]/,
};
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