From c7310a545ce08560c0c2cd314603e4d695c2b10c Mon Sep 17 00:00:00 2001
From: Martin Mares <mj@ucw.cz>
Date: Tue, 20 Aug 2019 21:42:07 +0200
Subject: [PATCH] ucw-link: "--" in URLs should not produce a ligature

---
 ucw-link.tex | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/ucw-link.tex b/ucw-link.tex
index 79594ce..ef229c4 100644
--- a/ucw-link.tex
+++ b/ucw-link.tex
@@ -44,6 +44,7 @@
 %
 %   - They can contain various characters considered special by TeX.
 %   - We want to adjust appearance of "//", "_", "~" according to font.
+%   - "--" should not produce a ligature.
 %   - We want to insert a breakpoint after "/", "?", "&".
 %   - We need the raw form of the URL for PDF links.
 %   - We cannot rely purely on changing catcodes, as we sometimes need
@@ -105,6 +106,7 @@
 	\replacestrings{?}{\urlquestion}%
 	\replacestrings{&}{\urlamp}%
 	\replacestrings{=}{\urlequal}%
+	\replacestrings{-}{\urlminus}%
 }
 
 % Style switches at the beginning/end of an URL (feel free to re-define them)
@@ -119,6 +121,7 @@
 \def\urlquestion{?\penalty100\relax}
 \def\urlamp{\&\penalty100\relax}
 \def\urlequal{=\penalty100\relax}
+\def\urlminus{\hbox{-}}
 \def\urlhack#1{#1}
 
 % Kern to place between "//" in an URL
@@ -142,6 +145,7 @@
 	\def\urlquestion{?}%
 	\def\urlamp{C}%
 	\def\urlequal{=}%
+	\def\urlminus{-}%
 	\def\%{D}%
 	\def\#{E}%
 	\def\\{}%
-- 
2.39.2