From f3cf594f30f3990aa0f4e76557af64371a1e1e83 Mon Sep 17 00:00:00 2001
From: Willy <jemand771@gmx.net>
Date: Wed, 11 Aug 2021 08:04:14 +0000
Subject: [PATCH 1/4] add additional arguments to diff-pdf * -v: be verbose *
 -m: mark differences on the side * -s: skip empty pages

---
 compile.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/compile.sh b/compile.sh
index 5798f20..15a3886 100644
--- a/compile.sh
+++ b/compile.sh
@@ -45,7 +45,7 @@ if [ "$DISABLE_SYNCTEX" = "" ]; then
   cp -u "$TARGET.synctex" "$BIND_PATH/$TARGET.synctex"
 fi
 if [ -f "$TARGET-old.pdf" ]; then
-  xvfb-run diff-pdf --output-diff="$TARGET-diff.pdf" "$TARGET-old.pdf" "$TARGET.pdf"
+  xvfb-run diff-pdf -v -m -s --output-diff="$TARGET-diff.pdf" "$TARGET-old.pdf" "$TARGET.pdf"
   rm "$TARGET-old.pdf"
   cp -u "$TARGET-diff.pdf" "$BIND_PATH/$TARGET-diff.pdf"
 fi

From 44f6a684b491b2e42ff218d9c6b8b3c7c369fe53 Mon Sep 17 00:00:00 2001
From: Willy <jemand771@gmx.net>
Date: Fri, 27 Aug 2021 10:50:18 +0200
Subject: [PATCH 2/4] Support for custom pygments lexers (#28)

* checkin of custom regex lexer by @TheColin21
* add custom lexer support to dockerfile

Co-authored-by: Colin P <admin@clnp.eu>
---
 Dockerfile                            |  5 +++++
 pygments-lexers/custom_regex_lexer.py | 32 +++++++++++++++++++++++++++
 2 files changed, 37 insertions(+)
 create mode 100644 pygments-lexers/custom_regex_lexer.py

diff --git a/Dockerfile b/Dockerfile
index f16aa6f..ef2ac72 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -47,6 +47,11 @@ RUN apt-get update &&\
 && \
     rm -rf /var/lib/apt/lists/*
 
+# install custom pygments lexers
+WORKDIR /usr/local/lib/python3.8/dist-packages/pygments/lexers
+COPY pygments-lexers/* .
+RUN python3 _mapping.py
+
 # minted expects "python" in PATH (not "python3")
 # without this, things like autogobble with \inputminted break
 # https://github.com/alexpovel/latex-extras-docker/blob/5429a82ef415c2e9eda0c20f71e7df63b51621e9/Dockerfile#L80-L87
diff --git a/pygments-lexers/custom_regex_lexer.py b/pygments-lexers/custom_regex_lexer.py
new file mode 100644
index 0000000..d18fd92
--- /dev/null
+++ b/pygments-lexers/custom_regex_lexer.py
@@ -0,0 +1,32 @@
+# Custom lexer for regex snippets
+# This file is based on a blog entry by Lukas Matt.
+# https://blog.matt.wf/regex-lexer-for-pygments/
+# It has been modified to be more versatile
+from pygments.lexer import RegexLexer, bygroups
+from pygments.token import *
+
+__all__ = ['regexLexer']
+
+class regexLexer(RegexLexer):
+    name = 'regex'
+    aliases = ['regex']
+    filenames = []
+
+    tokens = {
+        'root': [
+            (r'=', Text),
+            (r'\w+', Name),
+            (r'\d+', Number),
+            (r'[\s\,\:\-\"\']+', Text),
+            (r'[\$\^]', Token),
+            (r'[\+\*\.\?]', Operator),
+            (r'(\()([\?\<\>\!\=\:]{2,3}.+?)(\))', bygroups(Keyword.Namespace, Name.Function, Keyword.Namespace)),
+            (r'(\()(\?\#.+?)(\))', bygroups(Comment, Comment, Comment)),
+            (r'[\(\)]', Keyword.Namespace),
+            (r'[\[\]]', Name.Class),
+            (r'\\\w', Keyword),
+            (r'[\{\}]', Operator),
+            (r'\\\.', Text),
+            (r'\|', Operator),
+        ],
+    }

From 2f4d1f736c0493c937afc4fed5a24533c8c02621 Mon Sep 17 00:00:00 2001
From: Willy <jemand771@gmx.net>
Date: Fri, 27 Aug 2021 12:38:03 +0200
Subject: [PATCH 3/4] hotfix: rename lexer class and name (regex ->
 custom-regex)

this avoids collisions in the future in case pygments has its own "regex" lexer at some point

Signed-off-by: Willy <jemand771@gmx.net>
---
 pygments-lexers/custom_regex_lexer.py | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/pygments-lexers/custom_regex_lexer.py b/pygments-lexers/custom_regex_lexer.py
index d18fd92..80769c5 100644
--- a/pygments-lexers/custom_regex_lexer.py
+++ b/pygments-lexers/custom_regex_lexer.py
@@ -5,11 +5,11 @@
 from pygments.lexer import RegexLexer, bygroups
 from pygments.token import *
 
-__all__ = ['regexLexer']
+__all__ = ['CustomRegexLexer']
 
-class regexLexer(RegexLexer):
-    name = 'regex'
-    aliases = ['regex']
+class CustomRegexLexer(RegexLexer):
+    name = 'custom-regex'
+    aliases = ['custom-regex']
     filenames = []
 
     tokens = {

From a601f50b85d48eae8242cf6bf02fb5b3f477b835 Mon Sep 17 00:00:00 2001
From: Willy <jemand771@gmx.net>
Date: Fri, 27 Aug 2021 10:52:14 +0000
Subject: [PATCH 4/4] [skip ci] add a list of lexers to readme.md

---
 README.md | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/README.md b/README.md
index 50cc3a2..6de5454 100644
--- a/README.md
+++ b/README.md
@@ -68,5 +68,11 @@ This container can generate a `synctex.gz` file for you. Because all of the path
 
 In order to use this feature, you need to set the environment variable `HOST_PATH` to the same folder you bound `/latex` to. (the part before the colon). If you don't set this variable, a synctex file will still be generated but it won't be usable by your editor (wrong contents/paths. You can use the option specified above disable synctex generation completely.
 
+### Custom pygments lexers
+This repo supports registering additional pygments lexers (the "renderers" for the LaTeX package `minted`) at build time. These can be refered to by any one of their aliases listed below. (e.g. `\begin{minted}{custom-regex}`)
+| name           | description                                                                                                                      | aliases        |
+| -------------- | -------------------------------------------------------------------------------------------------------------------------------- | -------------- |
+| `custom-regex` | A lexer for highlighting regular expressions. (ps: don't confuse this with the `RegexLexer` base class for all pygments lexers.) | `custom-regex` |
+
 ## Contributing
 If you have any questions, feature requests or LaTeX package suggestions, feel free to open an issue here on GitHub.