mirror of
https://github.com/jashkenas/coffeescript.git
synced 2026-05-03 03:00:14 -04:00
ff1ddd0284
Since the move to the nodeREPL package, input lines to be evaluated are
now wrapped in parentheses; that is:
'foo'
would become:
('foo'
)
The old way of detecting empty lines was to see if the input string was
either totally empty, or whitespace-only. The addition of these
parentheses breaks that.
In order to fix this, we simply tweak the regex a little to ignore these
added parentheses if they're present. As an added bonus, the regex
should match empty inputs even if they aren't.
This also makes the "empty command evaluates to undefined" test pass,
for the right reasons (i.e. not because of the broken error behavior
from before).
105 lines
2.9 KiB
JavaScript
105 lines
2.9 KiB
JavaScript
// Generated by CoffeeScript 1.5.0
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(function() {
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var CoffeeScript, addMultilineHandler, merge, nodeREPL, replDefaults, vm;
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vm = require('vm');
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nodeREPL = require('repl');
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CoffeeScript = require('./coffee-script');
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merge = require('./helpers').merge;
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replDefaults = {
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prompt: 'coffee> ',
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"eval": function(input, context, filename, cb) {
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var js;
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input = input.replace(/\uFF00/g, '\n');
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input = input.replace(/(^|[\r\n]+)(\s*)##?(?:[^#\r\n][^\r\n]*|)($|[\r\n])/, '$1$2$3');
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if (/^(\()?\s*(\n\))?$/.test(input)) {
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return cb(null);
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}
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try {
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js = CoffeeScript.compile("_=(" + input + "\n)", {
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filename: filename,
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bare: true
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});
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return cb(null, vm.runInContext(js, context, filename));
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} catch (err) {
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return cb(err);
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}
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}
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};
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addMultilineHandler = function(repl) {
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var inputStream, multiline, nodeLineListener, outputStream, rli;
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rli = repl.rli, inputStream = repl.inputStream, outputStream = repl.outputStream;
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multiline = {
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enabled: false,
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initialPrompt: repl.prompt.replace(/^[^> ]*/, function(x) {
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return x.replace(/./g, '-');
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}),
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prompt: repl.prompt.replace(/^[^> ]*>?/, function(x) {
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return x.replace(/./g, '.');
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}),
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buffer: ''
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};
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nodeLineListener = rli.listeners('line')[0];
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rli.removeListener('line', nodeLineListener);
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rli.on('line', function(cmd) {
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if (multiline.enabled) {
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multiline.buffer += "" + cmd + "\n";
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rli.setPrompt(multiline.prompt);
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rli.prompt(true);
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} else {
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nodeLineListener(cmd);
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}
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});
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return inputStream.on('keypress', function(char, key) {
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if (!(key && key.ctrl && !key.meta && !key.shift && key.name === 'v')) {
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return;
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}
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if (multiline.enabled) {
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if (!multiline.buffer.match(/\n/)) {
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multiline.enabled = !multiline.enabled;
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rli.setPrompt(repl.prompt);
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rli.prompt(true);
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return;
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}
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if ((rli.line != null) && !rli.line.match(/^\s*$/)) {
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return;
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}
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multiline.enabled = !multiline.enabled;
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rli.line = '';
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rli.cursor = 0;
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rli.output.cursorTo(0);
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rli.output.clearLine(1);
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multiline.buffer = multiline.buffer.replace(/\n/g, '\uFF00');
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rli.emit('line', multiline.buffer);
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multiline.buffer = '';
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} else {
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multiline.enabled = !multiline.enabled;
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rli.setPrompt(multiline.initialPrompt);
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rli.prompt(true);
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}
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});
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};
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module.exports = {
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start: function(opts) {
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var repl;
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if (opts == null) {
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opts = {};
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}
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opts = merge(replDefaults, opts);
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repl = nodeREPL.start(opts);
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repl.on('exit', function() {
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return repl.outputStream.write('\n');
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});
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addMultilineHandler(repl);
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return repl;
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}
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};
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}).call(this);
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