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79 lines
1.9 KiB
79 lines
1.9 KiB
#!/usr/bin/env node
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var cardinal = require('..')
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var path = require('path')
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var settings = require('../settings')
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var args = process.argv
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var theme = settings.resolveTheme()
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var opts = settings.getSettings()
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var highlighted
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opts = opts || {}
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opts.theme = theme
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// jsx is only turned on when highlighting non-json files
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opts.jsx = false
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function usage() {
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var msg = [
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'Usage: cdl <filename.js> [options]'
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, ''
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, 'Options (~/.cardinalrc overrides):'
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, ' --nonum: turn off line printing'
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, ''
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, 'Unix Pipe Example: cat filename.js | grep console | cdl'
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, ''
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].join('\n')
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console.log(msg)
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}
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function highlightFile() {
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try {
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// Enabling jsx for JSON breaks most likelely due to esprima AST generation
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// not working for JSON
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opts.jsx = path.extname(args[2]) !== '.json'
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highlighted = cardinal.highlightFileSync(args[2], opts)
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console.log(highlighted)
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} catch (e) {
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console.trace()
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console.error(e)
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}
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}
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(function runner() {
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// E.g., "cardinal myfile.js"
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if (args.length === 3) return highlightFile()
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var opt = args[3]
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// E.g., "cardinal myfile.js --nonum"
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if (opt && opt.indexOf('--') === 0) {
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if ((/^--(nonum|noline)/i).test(opt)) opts.linenos = false
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else {
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usage()
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return console.error('Unknown option: ', opt)
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}
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return highlightFile()
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}
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// UNIX pipes e.g., "cat myfile.js | grep console | cardinal
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var stdin = process.stdin
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var stdout = process.stdout
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// line numbers don't make sense when we are printing line by line
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opts.linenos = false
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stdin.setEncoding('utf-8')
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stdin.resume()
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stdin
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.on('data', function(chunk) {
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chunk.split('\n').forEach(function(line) {
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try {
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stdout.write(cardinal.highlight(line, opts) + '\n')
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} catch (e) {
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// line doesn't represent a valid js snippet and therefore cannot be parsed -> just print as is
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stdout.write(line + '\n')
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}
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})
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})
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})()
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