node_modules

1 files changed, 295 insertions, 0 deletions

diff --git a/node_modules/nanomatch/lib/compilers.js b/node_modules/nanomatch/lib/compilers.js
new file mode 100644
index 000000000..1edcff0fd
--- /dev/null
+++ b/node_modules/nanomatch/lib/compilers.js
@@ -0,0 +1,295 @@
+'use strict';
+
+var isExtglob = require('is-extglob');
+
+/**
+ * Nanomatch compilers
+ */
+
+module.exports = function(nanomatch, options) {
+  var star = '[^/]*?';
+
+  var ast = nanomatch.ast = nanomatch.parser.ast;
+  ast.state = nanomatch.parser.state;
+  nanomatch.compiler.state = ast.state;
+
+  nanomatch.compiler
+
+    /**
+     * Negation / escaping
+     */
+
+    .set('not', function(node) {
+      var prev = this.prev();
+      if (this.options.nonegate === true || prev.type !== 'bos') {
+        return this.emit('\\' + node.val, node);
+      }
+      return this.emit(node.val, node);
+    })
+    .set('escape', function(node) {
+      if (this.options.unescape && /^[\w_.-]/.test(node.val)) {
+        return this.emit(node.val, node);
+      }
+      return this.emit('\\' + node.val, node);
+    })
+    .set('quoted', function(node) {
+      return this.emit(node.val, node);
+    })
+
+    /**
+     * Regex
+     */
+
+    .set('dollar', function(node) {
+      if (node.parent.type === 'bracket') {
+        return this.emit(node.val, node);
+      }
+      return this.emit('\\' + node.val, node);
+    })
+
+    /**
+     * Dot: "."
+     */
+
+    .set('dot', function(node) {
+      if (node.dotfiles === true) this.dotfiles = true;
+      return this.emit('\\' + node.val, node);
+    })
+
+    /**
+     * Slashes: "/" and "\"
+     */
+
+    .set('backslash', function(node) {
+      return this.emit(node.val, node);
+    })
+    .set('slash', function(node, nodes, i) {
+      var parent = node.parent;
+      while (parent.type === 'paren' && !parent.hasSlash) {
+        parent.hasSlash = true;
+        parent = parent.parent;
+      }
+
+      // word boundary
+      if (node.rest.slice(0, 2) === '\\b') {
+        return this.emit(node.val, node);
+      }
+
+      var parsed = node.parsed;
+      var val = '\\' + node.val;
+
+      if (parsed === '**' || parsed === './**') {
+        this.output = '(^(?=.)|' + this.output;
+        return this.emit(val + ')', node);
+      }
+      if (parsed === '!**' && this.options.nonegate !== true) {
+        return this.emit(val + '?\\b', node);
+      }
+      return this.emit(val, node);
+    })
+
+    /**
+     * Square brackets
+     */
+
+    .set('bracket', function(node) {
+      var close = node.close;
+      var open = !node.escaped ? '[' : '\\[';
+      var negated = node.negated;
+      var inner = node.inner;
+      var val = node.val;
+
+      if (node.escaped === true) {
+        inner = inner.replace(/\\?(\W)/g, '\\$1');
+        negated = '';
+      }
+
+      if (inner === ']-') {
+        inner = '\\]\\-';
+      }
+
+      if (negated && inner.indexOf('.') === -1) {
+        inner += '.';
+      }
+      if (negated && inner.indexOf('/') === -1) {
+        inner += '/';
+      }
+
+      val = open + negated + inner + close;
+      return this.emit(val, node);
+    })
+
+    /**
+     * Square: "[.]" (only matches a single character in brackets)
+     */
+
+    .set('square', function(node) {
+      var val = !/^\w/.test(node.val) ? '\\' + node.val : node.val;
+      return this.emit(val, node);
+    })
+
+    /**
+     * Question mark: "?"
+     */
+
+    .set('qmark', function(node) {
+      var prev = this.prev();
+      var val = '[^.\\\\/]';
+      if (this.options.dot || (prev.type !== 'bos' && prev.type !== 'slash')) {
+        val = '[^\\\\/]';
+      }
+
+      if (node.parsed.slice(-1) === '(') {
+        var ch = node.rest.charAt(0);
+        if (ch === '!' || ch === '=' || ch === ':') {
+          return this.emit(node.val, node);
+        }
+      }
+
+      if (node.val.length > 1) {
+        val += '{' + node.val.length + '}';
+      }
+      return this.emit(val, node);
+    })
+
+    /**
+     * Plus
+     */
+
+    .set('plus', function(node) {
+      var prev = node.parsed.slice(-1);
+      if (prev === ']' || prev === ')') {
+        return this.emit(node.val, node);
+      }
+      if (!this.output || (/[?*+]/.test(ch) && node.parent.type !== 'bracket')) {
+        return this.emit('\\+', node);
+      }
+      var ch = this.output.slice(-1);
+      if (/\w/.test(ch) && !node.inside) {
+        return this.emit('+\\+?', node);
+      }
+      return this.emit('+', node);
+    })
+
+    /**
+     * globstar: '**'
+     */
+
+    .set('globstar', function(node, nodes, i) {
+      if (!this.output) this.output = '(?=.)' + this.output;
+
+      var prev = this.prev();
+      var type = prev.type;
+      var val = node.val;
+
+      var parsed = node.parsed;
+      if (parsed.charAt(0) === '!') {
+        parsed = parsed.slice(1);
+      }
+
+      if (parsed && type !== 'slash' && type !== 'bos') {
+        val = star;
+      } else {
+        val = this.options.dot !== true
+          ? '(?:(?!(?:\\/|^)\\.).)*?'
+          : '(?:(?!(?:\\/|^)(?:\\.{1,2})($|\\/))(?!\\.{2}).)*?';
+      }
+
+      var prior = nodes[i - 2] || {};
+      if (type === 'slash' && this.output !== '\\/' && node.rest.charAt(0) === '/' && prior.type !== 'qmark' && !isExtglob(node.rest)) {
+        this.output += '?\\b';
+      }
+
+      if ((type === 'slash' || type === 'bos') && this.options.dot !== true) {
+        val = '(?!\\.)' + val;
+      }
+
+      if (this.output === '\\/' && nodes[i + 1].type !== 'eos') {
+        this.output = '(\\/|';
+        return this.emit('\\/' + val + ')?(?=.)', node);
+      }
+
+      return this.emit(val, node);
+    })
+
+    /**
+     * Star: "*"
+     */
+
+    .set('star', function(node, nodes, i) {
+      var prior = nodes[i - 2] || {};
+      var prev = this.prev();
+      var next = this.next();
+      var type = prev.type;
+
+      function isStart(n) {
+        return n.type === 'bos' || n.type === 'slash';
+      }
+
+      if (this.output === '' && this.options.contains !== true) {
+        this.output = '(?!\\/)';
+      }
+
+      if (type === 'bracket' && this.options.bash === false) {
+        var str = next && next.type === 'bracket' ? star : '*?';
+        if (!prev.nodes || prev.nodes[1].type !== 'posix') {
+          return this.emit(str, node);
+        }
+      }
+
+      var prefix = !this.dotfiles && type !== 'text' && type !== 'escape'
+        ? (this.options.dot ? '(?!(?:^|\\/)\\.{1,2}(?:$|\\/))' : '(?!\\.)')
+        : '';
+
+      if (isStart(prev) || (isStart(prior) && type === 'not')) {
+        if (prefix !== '(?!\\.)') {
+          prefix += '(?!(\\.{2}|\\.\\/))(?=.)';
+        } else {
+          prefix += '(?=.)';
+        }
+      } else if (prefix === '(?!\\.)') {
+        prefix = '';
+      }
+
+      if (prev.type === 'not' && prior.type === 'bos' && this.options.dot === true) {
+        this.output = '(?!\\.)' + this.output;
+      }
+
+      return this.emit(prefix + star, node);
+    })
+
+    /**
+     * Text
+     */
+
+    .set('text', function(node) {
+      return this.emit(node.val, node);
+    })
+
+    /**
+     * End-of-string
+     */
+
+    .set('eos', function(node) {
+      if (this.output.slice(-2) === '/?' || this.output.slice(-6) === '(\\/|$)') {
+        return this.emit(node.val, node);
+      }
+
+      var prev = this.prev();
+      var val = node.val;
+      if (this.state.metachar && prev.type !== 'qmark' && prev.type !== 'slash') {
+        val += (this.options.contains ? '\\/?' : '(\\/|$)');
+      }
+
+      return this.emit(val, node);
+    });
+
+  /**
+   * Allow custom compilers to be passed on options
+   */
+
+  if (options && typeof options.compilers === 'function') {
+    options.compilers(nanomatch.compiler);
+  }
+};
+