75 lines
1.7 KiB
JavaScript
75 lines
1.7 KiB
JavaScript
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// https://www.freedesktop.org/software/systemd/man/systemd.syntax.html
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(function (Prism) {
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var comment = {
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pattern: /^[;#].*/m,
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greedy: true
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};
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var quotesSource = /"(?:[^\r\n"\\]|\\(?:[^\r]|\r\n?))*"(?!\S)/.source;
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Prism.languages.systemd = {
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'comment': comment,
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'section': {
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pattern: /^\[[^\n\r\[\]]*\](?=[ \t]*$)/m,
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greedy: true,
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inside: {
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'punctuation': /^\[|\]$/,
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'section-name': {
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pattern: /[\s\S]+/,
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alias: 'selector'
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},
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}
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},
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'key': {
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pattern: /^[^\s=]+(?=[ \t]*=)/m,
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greedy: true,
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alias: 'attr-name'
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},
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'value': {
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// This pattern is quite complex because of two properties:
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// 1) Quotes (strings) must be preceded by a space. Since we can't use lookbehinds, we have to "resolve"
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// the lookbehind. You will see this in the main loop where spaces are handled separately.
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// 2) Line continuations.
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// After line continuations, empty lines and comments are ignored so we have to consume them.
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pattern: RegExp(
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/(=[ \t]*(?!\s))/.source +
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// the value either starts with quotes or not
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'(?:' + quotesSource + '|(?=[^"\r\n]))' +
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// main loop
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'(?:' + (
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/[^\s\\]/.source +
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// handle spaces separately because of quotes
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'|' + '[ \t]+(?:(?![ \t"])|' + quotesSource + ')' +
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// line continuation
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'|' + /\\[\r\n]+(?:[#;].*[\r\n]+)*(?![#;])/.source
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) +
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')*'
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),
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lookbehind: true,
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greedy: true,
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alias: 'attr-value',
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inside: {
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'comment': comment,
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'quoted': {
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pattern: RegExp(/(^|\s)/.source + quotesSource),
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lookbehind: true,
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greedy: true,
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},
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'punctuation': /\\$/m,
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'boolean': {
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pattern: /^(?:false|no|off|on|true|yes)$/,
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greedy: true
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}
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}
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},
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'punctuation': /=/
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};
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}(Prism));
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