Prism.languages.mel = { 'comment': { pattern: /\/\/.*|\/\*[\s\S]*?\*\//, greedy: true }, 'code': { pattern: /`(?:\\.|[^\\`])*`/, greedy: true, alias: 'italic', inside: { 'delimiter': { pattern: /^`|`$/, alias: 'punctuation' }, 'statement': { pattern: /[\s\S]+/, inside: null // see below } } }, 'string': { pattern: /"(?:\\.|[^\\"\r\n])*"/, greedy: true }, 'variable': /\$\w+/, 'number': /\b0x[\da-fA-F]+\b|\b\d+(?:\.\d*)?|\B\.\d+/, 'flag': { pattern: /-[^\d\W]\w*/, alias: 'operator' }, 'keyword': /\b(?:break|case|continue|default|do|else|float|for|global|if|in|int|matrix|proc|return|string|switch|vector|while)\b/, 'function': { pattern: /((?:^|[{;])[ \t]*)[a-z_]\w*\b(?!\s*(?:\.(?!\.)|[[{=]))|\b[a-z_]\w*(?=[ \t]*\()/im, lookbehind: true, greedy: true }, 'tensor-punctuation': { pattern: /<<|>>/, alias: 'punctuation' }, 'operator': /\+[+=]?|-[-=]?|&&|\|\||[<>]=?|[*\/!=]=?|[%^]/, 'punctuation': /[.,:;?\[\](){}]/ }; Prism.languages.mel['code'].inside['statement'].inside = Prism.languages.mel;