Strip HTML tags from single-part HTML emails

When an HTML body is fed to 'whatlang', it recognises it as English.
This is likely due to the English HTML syntax. Remove all HTML tags with
a simple regex substitution to get the language recognition working more
properly.

This doesn't remove CSS, which could also confuse the language
recogniser. In a limited test, it seemed to work without having to
remove any CSS, so not bothering with that.

Still need to get this working for multipart emails.

1 files changed, 1 insertions, 0 deletions

diff --git a/Cargo.toml b/Cargo.toml
index ba30916..d64f53d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -6,6 +6,7 @@ edition = "2018"
 [dependencies]
 exitcode = "1.1.2"
 mailparse = "0.13.2"
+regex = "1.4.4"
 thiserror = "1.0.24"
 whatlang = "0.11.1"
 xdg = "2.2.0"