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