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node_modules/pug-error/LICENSE

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+Copyright (c) 2015 Forbes Lindesay
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

node_modules/pug-error/README.md

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+# pug-error
+
+Standard error objects for pug.  This module is intended for use by the lexer, parser, loader, linker, code-generator and any plugins.
+
+[![Build Status](https://img.shields.io/travis/pugjs/pug-error/master.svg)](https://travis-ci.org/pugjs/pug-error)
+[![Dependencies Status](https://david-dm.org/pugjs/pug/status.svg?path=packages/pug-error)](https://david-dm.org/pugjs/pug?path=packages/pug-error)
+[![NPM version](https://img.shields.io/npm/v/pug-error.svg)](https://www.npmjs.org/package/pug-error)
+
+## Installation
+
+    npm install pug-error
+
+## Usage
+
+```js
+var error = require('pug-error');
+```
+
+### `error(code, message, options)`
+
+Create a Pug error object.
+
+`code` is a required unique code for the error type that can be used to pinpoint a certain error.
+
+`message` is a human-readable explanation of the error.
+
+`options` can contain any of the following properties:
+
+- `filename`: the name of the file causing the error
+- `line`: the offending line
+- `column`: the offending column
+- `src`: the Pug source, if available, for pretty-printing the error context
+
+The resulting error object is a simple Error object with additional properties given in the arguments.
+
+**Caveat:** the `message` argument is stored in `err.msg`, not `err.message`, which is occupied with a better-formatted message.
+
+```js
+var error = require('pug-error');
+
+var err = error('MY_CODE', 'My message', {line: 3, filename: 'myfile', src: 'foo\nbar\nbaz\nbash\nbing'});
+// { code: 'PUG:MY_CODE',
+//   msg: 'My message',
+//   line: 3,
+//   column: undefined,
+//   filename: 'myfile',
+//   src: 'foo\nbar\nbaz\nbash\nbing',
+//   message: 'myfile:3\n    1| foo\n    2| bar\n  > 3| baz\n    4| bash\n    5| bing\n\nMy message' }
+
+throw err;
+```
+
+## License
+
+  MIT

node_modules/pug-error/index.js

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+'use strict';
+
+module.exports = makeError;
+function makeError(code, message, options) {
+  var line = options.line;
+  var column = options.column;
+  var filename = options.filename;
+  var src = options.src;
+  var fullMessage;
+  var location = line + (column ? ':' + column : '');
+  if (src && line >= 1 && line <= src.split('\n').length) {
+    var lines = src.split('\n');
+    var start = Math.max(line - 3, 0);
+    var end = Math.min(lines.length, line + 3);
+    // Error context
+    var context = lines
+      .slice(start, end)
+      .map(function(text, i) {
+        var curr = i + start + 1;
+        var preamble = (curr == line ? '  > ' : '    ') + curr + '| ';
+        var out = preamble + text;
+        if (curr === line && column > 0) {
+          out += '\n';
+          out += Array(preamble.length + column).join('-') + '^';
+        }
+        return out;
+      })
+      .join('\n');
+    fullMessage =
+      (filename || 'Pug') + ':' + location + '\n' + context + '\n\n' + message;
+  } else {
+    fullMessage = (filename || 'Pug') + ':' + location + '\n\n' + message;
+  }
+  var err = new Error(fullMessage);
+  err.code = 'PUG:' + code;
+  err.msg = message;
+  err.line = line;
+  err.column = column;
+  err.filename = filename;
+  err.src = src;
+  err.toJSON = function() {
+    return {
+      code: this.code,
+      msg: this.msg,
+      line: this.line,
+      column: this.column,
+      filename: this.filename,
+    };
+  };
+  return err;
+}

node_modules/pug-error/package.json

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+{
+  "name": "pug-error",
+  "version": "2.0.0",
+  "description": "Standard error objects for pug",
+  "keywords": [
+    "pug"
+  ],
+  "files": [
+    "index.js"
+  ],
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/pugjs/pug/tree/master/packages/pug-error"
+  },
+  "author": "Forbes Lindesay",
+  "license": "MIT"
+}