[gatsby-remark-copy-linked-files] Fix regression from #2871 with RegExp cannons

examples/using-remark-copy-linked-files/.eslintrc

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+{
+  "env": {
+    "browser": true
+  },
+  "globals": {
+    "graphql": false
+  }
+}

examples/using-remark-copy-linked-files/.gitignore

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+public
+.cache
+node_modules

examples/using-remark-copy-linked-files/README.md

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+# using-gatsby-remark-copy-linked-files
+
+https://using-gatsby-remark-copy-linked-files.gatsbyjs.org
+
+Stub README description

examples/using-remark-copy-linked-files/gatsby-config.js

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+module.exports = {
+  siteMetadata: {
+    title: `Gatsby Starter Blog`,
+    author: `Kyle Mathews`,
+  },
+  plugins: [
+    {
+      resolve: `gatsby-source-filesystem`,
+      options: {
+        path: `${__dirname}/src/pages`,
+        name: `pages`,
+      },
+    },
+    {
+      resolve: `gatsby-transformer-remark`,
+      options: {
+        plugins: [
+          {
+            resolve: `gatsby-remark-responsive-iframe`,
+            options: {
+              wrapperStyle: `margin-bottom: 1.0725rem`,
+            },
+          },
+          `gatsby-remark-prismjs`,
+          // {
+          //   resolve: `gatsby-remark-images`,
+          //   options: {
+          //     maxWidth: 740,
+          //   },
+          // },
+          {
+            resolve: `gatsby-remark-copy-linked-files`,
+            options: {
+              // `ignoreFileExtensions` defaults to [`png`, `jpg`, `jpeg`, `bmp`, `tiff`]
+              // as we assume you'll use gatsby-remark-images to handle
+              // images in markdown as it automatically creates responsive
+              // versions of images.
+              //
+              // If you'd like to not use gatsby-remark-images and just copy your
+              // original images to the public directory, set
+              // `ignoreFileExtensions` to an empty array.
+              ignoreFileExtensions: [],
+            },
+          },
+          `gatsby-remark-smartypants`,
+        ],
+      },
+    },
+    `gatsby-transformer-sharp`,
+    `gatsby-plugin-sharp`,
+    {
+      resolve: `gatsby-plugin-google-analytics`,
+      options: {
+        //trackingId: `ADD YOUR TRACKING ID HERE`,
+      },
+    },
+    `gatsby-plugin-offline`,
+    `gatsby-plugin-react-helmet`,
+    {
+      resolve: `gatsby-plugin-typography`,
+      options: {
+        pathToConfigModule: `src/utils/typography`,
+      },
+    },
+  ],
+}

examples/using-remark-copy-linked-files/gatsby-node.js

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+const _ = require("lodash")
+const Promise = require('bluebird')
+const path = require('path')
+
+exports.createPages = ({ graphql, boundActionCreators }) => {
+  const { createPage } = boundActionCreators
+
+  return new Promise((resolve, reject) => {
+    const blogPost = path.resolve("./src/templates/blog-post.js")
+    resolve(
+      graphql(
+        `
+          {
+            allMarkdownRemark(limit: 1000) {
+              edges {
+                node {
+                  frontmatter {
+                    path
+                  }
+                }
+              }
+            }
+          }
+        `
+      ).then(result => {
+        if (result.errors) {
+          console.log(result.errors)
+          reject(result.errors)
+        }
+
+        // Create blog posts pages.
+        _.each(result.data.allMarkdownRemark.edges, edge => {
+          createPage({
+            path: edge.node.frontmatter.path,
+            component: blogPost,
+            context: {
+              path: edge.node.frontmatter.path,
+            },
+          })
+        })
+      })
+    )
+  })
+}

examples/using-remark-copy-linked-files/package.json

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+{
+  "name": "using-remark-copy-linked-files",
+  "private": true,
+  "description": "Gatsby example site on gatsby-remark-copy-linked-files",
+  "author": "Florian Kissling <sechskilo@gmail.com>",
+  "dependencies": {
+    "gatsby": "^1.9.108",
+    "gatsby-link": "^1.6.24",
+    "gatsby-plugin-google-analytics": "^1.0.12",
+    "gatsby-plugin-offline": "^1.0.10",
+    "gatsby-plugin-react-helmet": "^1.0.8",
+    "gatsby-plugin-sharp": "^1.6.20",
+    "gatsby-plugin-typography": "^1.7.10",
+    "gatsby-remark-copy-linked-files": "^1.5.20",
+    "gatsby-remark-images": "^1.5.31",
+    "gatsby-remark-prismjs": "^1.2.9",
+    "gatsby-remark-responsive-iframe": "^1.4.14",
+    "gatsby-remark-smartypants": "^1.4.8",
+    "gatsby-source-filesystem": "^1.5.8",
+    "gatsby-transformer-remark": "^1.7.20",
+    "gatsby-transformer-sharp": "^1.6.13",
+    "hast-util-to-html": "^3.1.0",
+    "lodash": "^4.15.0",
+    "react-responsive-grid": "^0.3.3",
+    "typeface-merriweather": "^0.0.35",
+    "typeface-montserrat": "^0.0.37",
+    "typography-theme-wordpress-2016": "^0.15.1"
+  },
+  "devDependencies": {
+    "eslint": "^4.9.0",
+    "eslint-plugin-react": "^7.4.0",
+    "gh-pages": "^0.12.0",
+    "prettier": "^1.8.1"
+  },
+  "license": "MIT",
+  "main": "n/a",
+  "scripts": {
+    "dev": "gatsby develop",
+    "lint": "./node_modules/.bin/eslint --ext .js,.jsx --ignore-pattern public .",
+    "test": "echo \"Error: no test specified\" && exit 1",
+    "format": "prettier --trailing-comma es5 --no-semi --single-quote --write 'src/**/*.js'",
+    "develop": "gatsby develop",
+    "build": "gatsby build",
+    "deploy": "gatsby build --prefix-paths && gh-pages -d public",
+    "fix-semi": "eslint --quiet --ignore-pattern node_modules --ignore-pattern public --parser babel-eslint --no-eslintrc --rule '{\"semi\": [2, \"never\"], \"no-extra-semi\": [2]}' --fix gatsby-node.js"
+  }
+}

examples/using-remark-copy-linked-files/src/components/Bio.js

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+import React from 'react'
+
+// Import typefaces
+import 'typeface-montserrat'
+import 'typeface-merriweather'
+
+import profilePic from './profile-pic.jpg'
+import { rhythm } from '../utils/typography'
+
+class Bio extends React.Component {
+  render() {
+    return (
+      <div
+        style={{
+          display: 'flex',
+          marginBottom: rhythm(2.5),
+        }}
+      >
+        <img
+          src={profilePic}
+          alt={`Kyle Mathews`}
+          style={{
+            marginRight: rhythm(1 / 2),
+            marginBottom: 0,
+            width: rhythm(2),
+            height: rhythm(2),
+          }}
+        />
+        <p>
+          Written by <strong>Kyle Mathews</strong> who lives and works in San
+          Francisco building useful things.{' '}
+          <a href="https://twitter.com/kylemathews">
+            You should follow him on Twitter
+          </a>
+        </p>
+      </div>
+    )
+  }
+}
+
+export default Bio

examples/using-remark-copy-linked-files/src/layouts/index.js

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+import React from "react"
+import Link from "gatsby-link"
+import { Container } from "react-responsive-grid"
+
+import { rhythm, scale } from "../utils/typography"
+
+require(`prismjs/themes/prism-solarizedlight.css`)
+
+class Template extends React.Component {
+  render() {
+    const { location, children } = this.props
+    let header
+
+    let rootPath = `/`
+    if (typeof __PREFIX_PATHS__ !== `undefined` && __PREFIX_PATHS__) {
+      rootPath = __PATH_PREFIX__ + `/`
+    }
+
+    if (location.pathname === rootPath) {
+      header = (
+        <h1
+          style={{
+            ...scale(1.5),
+            marginBottom: rhythm(1.5),
+            marginTop: 0,
+          }}
+        >
+          <Link
+            style={{
+              boxShadow: `none`,
+              textDecoration: `none`,
+              color: `inherit`,
+            }}
+            to={`/`}
+          >
+            Gatsby Starter Blog
+          </Link>
+        </h1>
+      )
+    } else {
+      header = (
+        <h3
+          style={{
+            fontFamily: `Montserrat, sans-serif`,
+            marginTop: 0,
+            marginBottom: rhythm(-1),
+          }}
+        >
+          <Link
+            style={{
+              boxShadow: `none`,
+              textDecoration: `none`,
+              color: `inherit`,
+            }}
+            to={`/`}
+          >
+            Gatsby Starter Blog
+          </Link>
+        </h3>
+      )
+    }
+    return (
+      <Container
+        style={{
+          maxWidth: rhythm(24),
+          padding: `${rhythm(1.5)} ${rhythm(3 / 4)}`,
+        }}
+      >
+        {header}
+        {children()}
+      </Container>
+    )
+  }
+}
+
+export default Template