75 lines
1.7 KiB
JavaScript
Executable File
75 lines
1.7 KiB
JavaScript
Executable File
#!/usr/bin/env node
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var cardinal = require('..')
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, utl = require('../utl')
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, settings = require('../settings')
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, args = process.argv
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, theme = settings.resolveTheme()
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, opts = settings.getSettings()
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, highlighted
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;
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opts = opts || {};
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opts.theme = theme;
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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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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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// 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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, 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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