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support options.language, default to js #23

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5 changes: 3 additions & 2 deletions lib/highlight.js
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Original file line number Diff line number Diff line change
Expand Up @@ -40,7 +40,8 @@ const sheet = (chalkInstance) => ({
formula: chalkInstance.inverse
});

module.exports = (stream) => {
module.exports = (stream, language) => {
language = language || 'js';
let level = 0;
if (stream.isTTY) {
if (stream.getColorDepth() >= 4) level = 1;
Expand All @@ -49,7 +50,7 @@ module.exports = (stream) => {
}
const chalkInstance = new chalk.Instance({ level });
const colorSheet = sheet(chalkInstance);
const highlight = (s) => emphasize.highlight('js', s, colorSheet).value;
const highlight = (s) => emphasize.highlight(language, s, colorSheet).value;
highlight.colorizeMatchingBracket = (s) => chalkInstance.bgBlue(s);
return highlight;
};
5 changes: 3 additions & 2 deletions lib/pretty-repl.js
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Expand Up @@ -57,9 +57,10 @@ class PrettyREPLServer extends repl.REPLServer {
constructor(options = {}) {
super(options);
options.output = options.output || process.stdout;
this.colorize = (options && options.colorize) || highlight(options.output);
options.language = options.language || 'js';
this.colorize = (options && options.colorize) || highlight(options.output, options.language);
this.colorizeMatchingBracket = (options && options.colorizeMatchingBracket) ||
highlight(options.output).colorizeMatchingBracket;
highlight(options.output, options.language).colorizeMatchingBracket;
this.lineBeforeInsert = undefined;
this.highlightBracketPosition = -1;

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25 changes: 25 additions & 0 deletions test/index.spec.js
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Expand Up @@ -170,3 +170,28 @@ it('full pass-through test', (done) => {
});
input.write('let foo = 12\n');
});

it('highlights typescript', (done) => {
process.stdout.isTTY = undefined;
const input = new PassThrough();
const output = new PassThrough();
output.isTTY = true;
output.getColorDepth = () => 8;
repl.start({
prompt: 'test-prompt > ',
input: input,
output: output,
terminal: true,
language: 'ts'
});
let out = '';
output.setEncoding('utf8').on('data', data => {
out += data;
if (out.endsWith('\n') && !out.startsWith('<done>')) {
assert.equal(out, '\x1B[1G\x1B[0Jtest-prompt > \x1B[15Gtyp\b\b\b\x1B[36mtype\x1B[39m metastatic = \x1B[32m"\x1B[39m\x1B[32mf\x1B[39m\x1B[32mo\x1B[39m\x1B[32mo\x1B[39m\x1B[32m"\x1B[39m|\x1B[32m"\x1B[39m\x1B[32mb\x1B[39m\x1B[32ma\x1B[39m\x1B[32mr\x1B[39m\x1B[32m"\x1B[39m|\x1B[32m"\x1B[39m\x1B[32mb\x1B[39m\x1B[32ma\x1B[39m\x1B[32mz\x1B[39m\x1B[32m"\x1B[39m\r\n');
out = '<done>';
done();
}
});
input.write('type metastatic = "foo"|"bar"|"baz"\n');
});
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