add some packages

node_modules/expand-brackets/index.js

@@ -0,0 +1,163 @@
+/*!
+ * expand-brackets <https://github.com/jonschlinkert/expand-brackets>
+ *
+ * Copyright (c) 2015 Jon Schlinkert.
+ * Licensed under the MIT license.
+ */
+
+'use strict';
+
+var isPosixBracket = require('is-posix-bracket');
+
+/**
+ * POSIX character classes
+ */
+
+var POSIX = {
+  alnum: 'a-zA-Z0-9',
+  alpha: 'a-zA-Z',
+  blank: ' \\t',
+  cntrl: '\\x00-\\x1F\\x7F',
+  digit: '0-9',
+  graph: '\\x21-\\x7E',
+  lower: 'a-z',
+  print: '\\x20-\\x7E',
+  punct: '-!"#$%&\'()\\*+,./:;<=>?@[\\]^_`{|}~',
+  space: ' \\t\\r\\n\\v\\f',
+  upper: 'A-Z',
+  word:  'A-Za-z0-9_',
+  xdigit: 'A-Fa-f0-9',
+};
+
+/**
+ * Expose `brackets`
+ */
+
+module.exports = brackets;
+
+function brackets(str) {
+  if (!isPosixBracket(str)) {
+    return str;
+  }
+
+  var negated = false;
+  if (str.indexOf('[^') !== -1) {
+    negated = true;
+    str = str.split('[^').join('[');
+  }
+  if (str.indexOf('[!') !== -1) {
+    negated = true;
+    str = str.split('[!').join('[');
+  }
+
+  var a = str.split('[');
+  var b = str.split(']');
+  var imbalanced = a.length !== b.length;
+
+  var parts = str.split(/(?::\]\[:|\[?\[:|:\]\]?)/);
+  var len = parts.length, i = 0;
+  var end = '', beg = '';
+  var res = [];
+
+  // start at the end (innermost) first
+  while (len--) {
+    var inner = parts[i++];
+    if (inner === '^[!' || inner === '[!') {
+      inner = '';
+      negated = true;
+    }
+
+    var prefix = negated ? '^' : '';
+    var ch = POSIX[inner];
+
+    if (ch) {
+      res.push('[' + prefix + ch + ']');
+    } else if (inner) {
+      if (/^\[?\w-\w\]?$/.test(inner)) {
+        if (i === parts.length) {
+          res.push('[' + prefix + inner);
+        } else if (i === 1) {
+          res.push(prefix + inner + ']');
+        } else {
+          res.push(prefix + inner);
+        }
+      } else {
+        if (i === 1) {
+          beg += inner;
+        } else if (i === parts.length) {
+          end += inner;
+        } else {
+          res.push('[' + prefix + inner + ']');
+        }
+      }
+    }
+  }
+
+  var result = res.join('|');
+  var rlen = res.length || 1;
+  if (rlen > 1) {
+    result = '(?:' + result + ')';
+    rlen = 1;
+  }
+  if (beg) {
+    rlen++;
+    if (beg.charAt(0) === '[') {
+      if (imbalanced) {
+        beg = '\\[' + beg.slice(1);
+      } else {
+        beg += ']';
+      }
+    }
+    result = beg + result;
+  }
+  if (end) {
+    rlen++;
+    if (end.slice(-1) === ']') {
+      if (imbalanced) {
+        end = end.slice(0, end.length - 1) + '\\]';
+      } else {
+        end = '[' + end;
+      }
+    }
+    result += end;
+  }
+
+  if (rlen > 1) {
+    result = result.split('][').join(']|[');
+    if (result.indexOf('|') !== -1 && !/\(\?/.test(result)) {
+      result = '(?:' + result + ')';
+    }
+  }
+
+  result = result.replace(/\[+=|=\]+/g, '\\b');
+  return result;
+}
+
+brackets.makeRe = function(pattern) {
+  try {
+    return new RegExp(brackets(pattern));
+  } catch (err) {}
+};
+
+brackets.isMatch = function(str, pattern) {
+  try {
+    return brackets.makeRe(pattern).test(str);
+  } catch (err) {
+    return false;
+  }
+};
+
+brackets.match = function(arr, pattern) {
+  var len = arr.length, i = 0;
+  var res = arr.slice();
+
+  var re = brackets.makeRe(pattern);
+  while (i < len) {
+    var ele = arr[i++];
+    if (!re.test(ele)) {
+      continue;
+    }
+    res.splice(i, 1);
+  }
+  return res;
+};