99 lines
2.8 KiB
JavaScript
99 lines
2.8 KiB
JavaScript
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(function (Prism) {
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// Many of the following regexes will contain negated lookaheads like `[ \t]+(?![ \t])`. This is a trick to ensure
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// that quantifiers behave *atomically*. Atomic quantifiers are necessary to prevent exponential backtracking.
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var spaceAfterBackSlash = /\\[\r\n](?:\s|\\[\r\n]|#.*(?!.))*(?![\s#]|\\[\r\n])/.source;
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// At least one space, comment, or line break
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var space = /(?:[ \t]+(?![ \t])(?:<SP_BS>)?|<SP_BS>)/.source
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.replace(/<SP_BS>/g, function () { return spaceAfterBackSlash; });
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var string = /"(?:[^"\\\r\n]|\\(?:\r\n|[\s\S]))*"|'(?:[^'\\\r\n]|\\(?:\r\n|[\s\S]))*'/.source;
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var option = /--[\w-]+=(?:<STR>|(?!["'])(?:[^\s\\]|\\.)+)/.source.replace(/<STR>/g, function () { return string; });
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var stringRule = {
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pattern: RegExp(string),
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greedy: true
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};
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var commentRule = {
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pattern: /(^[ \t]*)#.*/m,
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lookbehind: true,
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greedy: true
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};
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/**
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* @param {string} source
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* @param {string} flags
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* @returns {RegExp}
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*/
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function re(source, flags) {
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source = source
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.replace(/<OPT>/g, function () { return option; })
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.replace(/<SP>/g, function () { return space; });
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return RegExp(source, flags);
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}
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Prism.languages.docker = {
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'instruction': {
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pattern: /(^[ \t]*)(?:ADD|ARG|CMD|COPY|ENTRYPOINT|ENV|EXPOSE|FROM|HEALTHCHECK|LABEL|MAINTAINER|ONBUILD|RUN|SHELL|STOPSIGNAL|USER|VOLUME|WORKDIR)(?=\s)(?:\\.|[^\r\n\\])*(?:\\$(?:\s|#.*$)*(?![\s#])(?:\\.|[^\r\n\\])*)*/im,
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lookbehind: true,
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greedy: true,
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inside: {
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'options': {
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pattern: re(/(^(?:ONBUILD<SP>)?\w+<SP>)<OPT>(?:<SP><OPT>)*/.source, 'i'),
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lookbehind: true,
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greedy: true,
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inside: {
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'property': {
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pattern: /(^|\s)--[\w-]+/,
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lookbehind: true
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},
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'string': [
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stringRule,
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{
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pattern: /(=)(?!["'])(?:[^\s\\]|\\.)+/,
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lookbehind: true
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}
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],
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'operator': /\\$/m,
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'punctuation': /=/
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}
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},
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'keyword': [
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{
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// https://docs.docker.com/engine/reference/builder/#healthcheck
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pattern: re(/(^(?:ONBUILD<SP>)?HEALTHCHECK<SP>(?:<OPT><SP>)*)(?:CMD|NONE)\b/.source, 'i'),
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lookbehind: true,
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greedy: true
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},
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{
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// https://docs.docker.com/engine/reference/builder/#from
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pattern: re(/(^(?:ONBUILD<SP>)?FROM<SP>(?:<OPT><SP>)*(?!--)[^ \t\\]+<SP>)AS/.source, 'i'),
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lookbehind: true,
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greedy: true
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},
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{
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// https://docs.docker.com/engine/reference/builder/#onbuild
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pattern: re(/(^ONBUILD<SP>)\w+/.source, 'i'),
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lookbehind: true,
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greedy: true
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},
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{
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pattern: /^\w+/,
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greedy: true
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}
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],
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'comment': commentRule,
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'string': stringRule,
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'variable': /\$(?:\w+|\{[^{}"'\\]*\})/,
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'operator': /\\$/m
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}
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},
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'comment': commentRule
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};
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Prism.languages.dockerfile = Prism.languages.docker;
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}(Prism));
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