cerxes/babel
3
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Add a shell interface

Browse Source
This commit is contained in:
Marijn Haverbeke 2012-10-03 11:04:26 +02:00
parent 0820a593a6
commit 7feb14c0ea
1 changed files with 40 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

40
bin/acorn Executable file
View File

@ -0,0 +1,40 @@
#!/usr/bin/env node
var path = require('path');
var fs = require('fs');
var acorn = require(path.join(path.dirname(fs.realpathSync(__filename)), "../acorn.js"));
var infile, parsed, options = {}, silent = false, compact = false;
function help(status) {
console.log("usage: " + path.basename(process.argv[1]) + " infile [--ecma3|--ecma5] [--strictSemicolons]");
console.log(" [--trackComments] [--locations] [--compact] [--silent] [--help]");
process.exit(status);
}
for (var i = 2; i < process.argv.length; ++i) {
var arg = process.argv[i];
if (arg == "--ecma3") options.ecmaVersion = 3;
else if (arg == "--ecma5") options.ecmaVersion = 5;
else if (arg == "--strictSemicolons") options.strictSemicolons = true;
else if (arg == "--trackComments") options.trackComments = true;
else if (arg == "--locations") options.locations = true;
else if (arg == "--silent") silent = true;
else if (arg == "--compact") compact = true;
else if (arg == "--help") help(0);
else if (arg[0] == "-") help(1);
else infile = arg;
}
if (!infile) help(1);
try {
var code = fs.readFileSync(infile, "utf8");
parsed = acorn.parse(code, options);
} catch(e) {
console.log(e.message);
process.exit(1);
}
if (!silent)
console.log(JSON.stringify(parsed, null, compact ? null : 2));