1 files changed, 22 insertions, 0 deletions
diff --git a/node_modules/vuepress/lib/markdown/slugify.js b/node_modules/vuepress/lib/markdown/slugify.js
new file mode 100644
index 00000000..47a9d6e9
--- /dev/null
+++ b/node_modules/vuepress/lib/markdown/slugify.js
@@ -0,0 +1,22 @@
+// string.js slugify drops non ascii chars so we have to
+// use a custom implementation here
+const removeDiacritics = require('diacritics').remove
+// eslint-disable-next-line no-control-regex
+const rControl = /[\u0000-\u001f]/g
+const rSpecial = /[\s~`!@#$%^&*()\-_+=[\]{}|\\;:"'<>,.?/]+/g
+
+module.exports = function slugify (str) {
+  return removeDiacritics(str)
+    // Remove control characters
+    .replace(rControl, '')
+    // Replace special characters
+    .replace(rSpecial, '-')
+    // Remove continous separators
+    .replace(/\-{2,}/g, '-')
+    // Remove prefixing and trailing separtors
+    .replace(/^\-+|\-+$/g, '')
+    // ensure it doesn't start with a number (#121)
+    .replace(/^(\d)/, '_$1')
+    // lowercase
+    .toLowerCase()
+}