From ad563753743ebcf4378dc975dbc492e82aec55f7 Mon Sep 17 00:00:00 2001
From: STEPHANVS <stephanvs@gmail.com>
Date: Mon, 5 Jul 2021 15:43:32 +0200
Subject: [PATCH] Support "add" in chord suffix, support song key definition
 with "="

---
 openlp/core/display/render.py        | 2 +-
 openlp/plugins/songs/lib/__init__.py | 6 ++++++
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/openlp/core/display/render.py b/openlp/core/display/render.py
index 551bce5ef..721a316a1 100644
--- a/openlp/core/display/render.py
+++ b/openlp/core/display/render.py
@@ -48,7 +48,7 @@ ENGLISH_NOTES = '[CDEFGAB]?'
 GERMAN_NOTES = '[CDEFGABH]?'
 NEOLATIN_NOTES = '(Do|Re|Mi|Fa|Sol|La|Si)?'
 CHORD_PREFIXES = '(=|\\(|\\|)*?'
-CHORD_SUFFIXES = '(b|bb|#|##|x|-|m|maj|min|sus|dim|0|1|2|3|4|5|6|7|8|9|\\))*?'
+CHORD_SUFFIXES = '(b|bb|#|##|x|-|m|maj|min|sus|dim|add|0|1|2|3|4|5|6|7|8|9|\\))*?'
 SLIM_CHARS = 'fiíIÍjlĺľrtť.,;/ ()|"\'!:\\'
 CHORD_TEMPLATE = '<span class="chordline">{chord}</span>'
 FIRST_CHORD_TEMPLATE = '<span class="chordline">{chord}</span>'
diff --git a/openlp/plugins/songs/lib/__init__.py b/openlp/plugins/songs/lib/__init__.py
index 1bcd3a714..05fc43225 100644
--- a/openlp/plugins/songs/lib/__init__.py
+++ b/openlp/plugins/songs/lib/__init__.py
@@ -640,6 +640,12 @@ def transpose_chord(chord, transpose_value, notation):
                 current_chord = current_chord[1:]
             else:
                 current_chord = ''
+        if current_chord and current_chord[0] == '=':
+            transposed_chord += '='
+            if len(current_chord) > 1:
+                current_chord = current_chord[1:]
+            else:
+                current_chord = ''
         if len(current_chord) > 0:
             if len(current_chord) > 1:
                 if '#b'.find(current_chord[1]) == -1: