aboutsummaryrefslogtreecommitdiff
path: root/node_modules/esprima/bin/esparse.js
diff options
context:
space:
mode:
Diffstat (limited to 'node_modules/esprima/bin/esparse.js')
-rwxr-xr-xnode_modules/esprima/bin/esparse.js139
1 files changed, 139 insertions, 0 deletions
diff --git a/node_modules/esprima/bin/esparse.js b/node_modules/esprima/bin/esparse.js
new file mode 100755
index 0000000..45d05fb
--- /dev/null
+++ b/node_modules/esprima/bin/esparse.js
@@ -0,0 +1,139 @@
+#!/usr/bin/env node
+/*
+ Copyright JS Foundation and other contributors, https://js.foundation/
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions are met:
+
+ * Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above copyright
+ notice, this list of conditions and the following disclaimer in the
+ documentation and/or other materials provided with the distribution.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
+ DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+/*jslint sloppy:true node:true rhino:true */
+
+var fs, esprima, fname, forceFile, content, options, syntax;
+
+if (typeof require === 'function') {
+ fs = require('fs');
+ try {
+ esprima = require('esprima');
+ } catch (e) {
+ esprima = require('../');
+ }
+} else if (typeof load === 'function') {
+ try {
+ load('esprima.js');
+ } catch (e) {
+ load('../esprima.js');
+ }
+}
+
+// Shims to Node.js objects when running under Rhino.
+if (typeof console === 'undefined' && typeof process === 'undefined') {
+ console = { log: print };
+ fs = { readFileSync: readFile };
+ process = { argv: arguments, exit: quit };
+ process.argv.unshift('esparse.js');
+ process.argv.unshift('rhino');
+}
+
+function showUsage() {
+ console.log('Usage:');
+ console.log(' esparse [options] [file.js]');
+ console.log();
+ console.log('Available options:');
+ console.log();
+ console.log(' --comment Gather all line and block comments in an array');
+ console.log(' --loc Include line-column location info for each syntax node');
+ console.log(' --range Include index-based range for each syntax node');
+ console.log(' --raw Display the raw value of literals');
+ console.log(' --tokens List all tokens in an array');
+ console.log(' --tolerant Tolerate errors on a best-effort basis (experimental)');
+ console.log(' -v, --version Shows program version');
+ console.log();
+ process.exit(1);
+}
+
+options = {};
+
+process.argv.splice(2).forEach(function (entry) {
+
+ if (forceFile || entry === '-' || entry.slice(0, 1) !== '-') {
+ if (typeof fname === 'string') {
+ console.log('Error: more than one input file.');
+ process.exit(1);
+ } else {
+ fname = entry;
+ }
+ } else if (entry === '-h' || entry === '--help') {
+ showUsage();
+ } else if (entry === '-v' || entry === '--version') {
+ console.log('ECMAScript Parser (using Esprima version', esprima.version, ')');
+ console.log();
+ process.exit(0);
+ } else if (entry === '--comment') {
+ options.comment = true;
+ } else if (entry === '--loc') {
+ options.loc = true;
+ } else if (entry === '--range') {
+ options.range = true;
+ } else if (entry === '--raw') {
+ options.raw = true;
+ } else if (entry === '--tokens') {
+ options.tokens = true;
+ } else if (entry === '--tolerant') {
+ options.tolerant = true;
+ } else if (entry === '--') {
+ forceFile = true;
+ } else {
+ console.log('Error: unknown option ' + entry + '.');
+ process.exit(1);
+ }
+});
+
+// Special handling for regular expression literal since we need to
+// convert it to a string literal, otherwise it will be decoded
+// as object "{}" and the regular expression would be lost.
+function adjustRegexLiteral(key, value) {
+ if (key === 'value' && value instanceof RegExp) {
+ value = value.toString();
+ }
+ return value;
+}
+
+function run(content) {
+ syntax = esprima.parse(content, options);
+ console.log(JSON.stringify(syntax, adjustRegexLiteral, 4));
+}
+
+try {
+ if (fname && (fname !== '-' || forceFile)) {
+ run(fs.readFileSync(fname, 'utf-8'));
+ } else {
+ var content = '';
+ process.stdin.resume();
+ process.stdin.on('data', function(chunk) {
+ content += chunk;
+ });
+ process.stdin.on('end', function() {
+ run(content);
+ });
+ }
+} catch (e) {
+ console.log('Error: ' + e.message);
+ process.exit(1);
+}