|
@@ -0,0 +1,27 @@
|
|
|
+module.exports = function(grunt) {
|
|
|
+
|
|
|
+ var PEG = require('pegjs');
|
|
|
+
|
|
|
+ /**
|
|
|
+ Full config looks like this:
|
|
|
+ pegjs: {
|
|
|
+ my_parser: {
|
|
|
+ src: 'parser.pegjs', // REQUIRED
|
|
|
+ dest: 'parser.js', // REQUIRED
|
|
|
+ trackLineAndColumn: true, // optional (default: false)
|
|
|
+ cache: true, // optional (default: false)
|
|
|
+ export_var: 'smalltalk.parser' // optional (default: module.exports)
|
|
|
+ }
|
|
|
+ },
|
|
|
+ */
|
|
|
+ grunt.registerMultiTask('pegjs', 'Generate JavaScript parser from PEG.js grammar description', function() {
|
|
|
+ var pegOptions = {
|
|
|
+ cache: this.data.cache || false,
|
|
|
+ trackLineAndColumn: this.data.trackLineAndColumn || false
|
|
|
+ };
|
|
|
+ var export_var = this.data.export_var || 'module.exports';
|
|
|
+ var parser = PEG.buildParser(grunt.file.read(this.data.src), pegOptions);
|
|
|
+ var content = export_var + ' = ' + parser.toSource() + ';\n';
|
|
|
+ grunt.file.write(this.data.dest, content);
|
|
|
+ });
|
|
|
+};
|