Current Dev State

static/js/ketcher2/node_modules/shelljs/src/grep.js

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+var common = require('./common');
+var fs = require('fs');
+
+common.register('grep', _grep, {
+  globStart: 2, // don't glob-expand the regex
+  canReceivePipe: true,
+  cmdOptions: {
+    'v': 'inverse',
+    'l': 'nameOnly',
+  },
+});
+
+//@
+//@ ### grep([options,] regex_filter, file [, file ...])
+//@ ### grep([options,] regex_filter, file_array)
+//@ Available options:
+//@
+//@ + `-v`: Inverse the sense of the regex and print the lines not matching the criteria.
+//@ + `-l`: Print only filenames of matching files
+//@
+//@ Examples:
+//@
+//@ ```javascript
+//@ grep('-v', 'GLOBAL_VARIABLE', '*.js');
+//@ grep('GLOBAL_VARIABLE', '*.js');
+//@ ```
+//@
+//@ Reads input string from given files and returns a string containing all lines of the
+//@ file that match the given `regex_filter`.
+function _grep(options, regex, files) {
+  // Check if this is coming from a pipe
+  var pipe = common.readFromPipe();
+
+  if (!files && !pipe) common.error('no paths given', 2);
+
+  files = [].slice.call(arguments, 2);
+
+  if (pipe) {
+    files.unshift('-');
+  }
+
+  var grep = [];
+  files.forEach(function (file) {
+    if (!fs.existsSync(file) && file !== '-') {
+      common.error('no such file or directory: ' + file, 2, { continue: true });
+      return;
+    }
+
+    var contents = file === '-' ? pipe : fs.readFileSync(file, 'utf8');
+    var lines = contents.split(/\r*\n/);
+    if (options.nameOnly) {
+      if (contents.match(regex)) {
+        grep.push(file);
+      }
+    } else {
+      lines.forEach(function (line) {
+        var matched = line.match(regex);
+        if ((options.inverse && !matched) || (!options.inverse && matched)) {
+          grep.push(line);
+        }
+      });
+    }
+  });
+
+  return grep.join('\n') + '\n';
+}
+module.exports = _grep;