187 lines
No EOL
5.6 KiB
JavaScript
187 lines
No EOL
5.6 KiB
JavaScript
module.exports = function(hljs) {
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var INT_SUFFIX = '(_*[ui](8|16|32|64|128))?';
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var FLOAT_SUFFIX = '(_*f(32|64))?';
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var CRYSTAL_IDENT_RE = '[a-zA-Z_]\\w*[!?=]?';
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var CRYSTAL_METHOD_RE = '[a-zA-Z_]\\w*[!?=]?|[-+~]\\@|<<|>>|=~|===?|<=>|[<>]=?|\\*\\*|[-/+%^&*~|]|//|//=|&[-+*]=?|&\\*\\*|\\[\\][=?]?';
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var CRYSTAL_PATH_RE = '[A-Za-z_]\\w*(::\\w+)*(\\?|\\!)?';
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var CRYSTAL_KEYWORDS = {
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keyword:
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'abstract alias annotation as as? asm begin break case class def do else elsif end ensure enum extend for fun if ' +
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'include instance_sizeof is_a? lib macro module next nil? of out pointerof private protected rescue responds_to? ' +
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'return require select self sizeof struct super then type typeof union uninitialized unless until verbatim when while with yield ' +
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'__DIR__ __END_LINE__ __FILE__ __LINE__',
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literal: 'false nil true'
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};
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var SUBST = {
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className: 'subst',
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begin: '#{', end: '}',
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keywords: CRYSTAL_KEYWORDS
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};
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var EXPANSION = {
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className: 'template-variable',
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variants: [
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{begin: '\\{\\{', end: '\\}\\}'},
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{begin: '\\{%', end: '%\\}'}
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],
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keywords: CRYSTAL_KEYWORDS
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};
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function recursiveParen(begin, end) {
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var
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contains = [{begin: begin, end: end}];
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contains[0].contains = contains;
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return contains;
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}
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var STRING = {
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className: 'string',
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contains: [hljs.BACKSLASH_ESCAPE, SUBST],
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variants: [
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{begin: /'/, end: /'/},
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{begin: /"/, end: /"/},
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{begin: /`/, end: /`/},
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{begin: '%[Qwi]?\\(', end: '\\)', contains: recursiveParen('\\(', '\\)')},
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{begin: '%[Qwi]?\\[', end: '\\]', contains: recursiveParen('\\[', '\\]')},
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{begin: '%[Qwi]?{', end: '}', contains: recursiveParen('{', '}')},
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{begin: '%[Qwi]?<', end: '>', contains: recursiveParen('<', '>')},
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{begin: '%[Qwi]?\\|', end: '\\|'},
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{begin: /<<-\w+$/, end: /^\s*\w+$/},
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],
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relevance: 0,
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};
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var Q_STRING = {
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className: 'string',
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variants: [
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{begin: '%q\\(', end: '\\)', contains: recursiveParen('\\(', '\\)')},
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{begin: '%q\\[', end: '\\]', contains: recursiveParen('\\[', '\\]')},
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{begin: '%q{', end: '}', contains: recursiveParen('{', '}')},
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{begin: '%q<', end: '>', contains: recursiveParen('<', '>')},
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{begin: '%q\\|', end: '\\|'},
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{begin: /<<-'\w+'$/, end: /^\s*\w+$/},
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],
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relevance: 0,
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};
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var REGEXP = {
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begin: '(?!%})(' + hljs.RE_STARTERS_RE + '|\\n|\\b(case|if|select|unless|until|when|while)\\b)\\s*',
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keywords: 'case if select unless until when while',
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contains: [
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{
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className: 'regexp',
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contains: [hljs.BACKSLASH_ESCAPE, SUBST],
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variants: [
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{begin: '//[a-z]*', relevance: 0},
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{begin: '/(?!\\/)', end: '/[a-z]*'},
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]
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}
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],
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relevance: 0
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};
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var REGEXP2 = {
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className: 'regexp',
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contains: [hljs.BACKSLASH_ESCAPE, SUBST],
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variants: [
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{begin: '%r\\(', end: '\\)', contains: recursiveParen('\\(', '\\)')},
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{begin: '%r\\[', end: '\\]', contains: recursiveParen('\\[', '\\]')},
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{begin: '%r{', end: '}', contains: recursiveParen('{', '}')},
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{begin: '%r<', end: '>', contains: recursiveParen('<', '>')},
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{begin: '%r\\|', end: '\\|'},
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],
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relevance: 0
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};
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var ATTRIBUTE = {
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className: 'meta',
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begin: '@\\[', end: '\\]',
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contains: [
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hljs.inherit(hljs.QUOTE_STRING_MODE, {className: 'meta-string'})
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]
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};
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var CRYSTAL_DEFAULT_CONTAINS = [
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EXPANSION,
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STRING,
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Q_STRING,
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REGEXP2,
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REGEXP,
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ATTRIBUTE,
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hljs.HASH_COMMENT_MODE,
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{
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className: 'class',
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beginKeywords: 'class module struct', end: '$|;',
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illegal: /=/,
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contains: [
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hljs.HASH_COMMENT_MODE,
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hljs.inherit(hljs.TITLE_MODE, {begin: CRYSTAL_PATH_RE}),
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{begin: '<'} // relevance booster for inheritance
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]
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},
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{
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className: 'class',
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beginKeywords: 'lib enum union', end: '$|;',
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illegal: /=/,
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contains: [
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hljs.HASH_COMMENT_MODE,
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hljs.inherit(hljs.TITLE_MODE, {begin: CRYSTAL_PATH_RE}),
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],
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relevance: 10
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},
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{
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beginKeywords: 'annotation', end: '$|;',
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illegal: /=/,
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contains: [
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hljs.HASH_COMMENT_MODE,
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hljs.inherit(hljs.TITLE_MODE, {begin: CRYSTAL_PATH_RE}),
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],
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relevance: 10
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},
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{
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className: 'function',
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beginKeywords: 'def', end: /\B\b/,
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contains: [
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hljs.inherit(hljs.TITLE_MODE, {
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begin: CRYSTAL_METHOD_RE,
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endsParent: true
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})
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]
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},
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{
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className: 'function',
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beginKeywords: 'fun macro', end: /\B\b/,
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contains: [
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hljs.inherit(hljs.TITLE_MODE, {
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begin: CRYSTAL_METHOD_RE,
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endsParent: true
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})
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],
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relevance: 5
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},
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{
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className: 'symbol',
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begin: hljs.UNDERSCORE_IDENT_RE + '(\\!|\\?)?:',
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relevance: 0
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},
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{
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className: 'symbol',
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begin: ':',
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contains: [STRING, {begin: CRYSTAL_METHOD_RE}],
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relevance: 0
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},
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{
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className: 'number',
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variants: [
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{ begin: '\\b0b([01_]+)' + INT_SUFFIX },
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{ begin: '\\b0o([0-7_]+)' + INT_SUFFIX },
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{ begin: '\\b0x([A-Fa-f0-9_]+)' + INT_SUFFIX },
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{ begin: '\\b([1-9][0-9_]*[0-9]|[0-9])(\\.[0-9][0-9_]*)?([eE]_*[-+]?[0-9_]*)?' + FLOAT_SUFFIX + '(?!_)' },
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{ begin: '\\b([1-9][0-9_]*|0)' + INT_SUFFIX }
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],
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relevance: 0
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}
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];
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SUBST.contains = CRYSTAL_DEFAULT_CONTAINS;
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EXPANSION.contains = CRYSTAL_DEFAULT_CONTAINS.slice(1); // without EXPANSION
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return {
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aliases: ['cr'],
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lexemes: CRYSTAL_IDENT_RE,
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keywords: CRYSTAL_KEYWORDS,
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contains: CRYSTAL_DEFAULT_CONTAINS
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};
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}; |