1 files changed, 30 insertions, 0 deletions
diff --git a/.config/imapfilter/imapfilter-common.lua b/.config/imapfilter/imapfilter-common.lua
new file mode 100755
index 0000000..8460bb0
--- /dev/null
+++ b/.config/imapfilter/imapfilter-common.lua
@@ -0,0 +1,30 @@
+-- Utility function to get IMAP username from pass
+function get_imap_username(account)
+    local str = io.popen('pass institutions/' .. account .. '/id'):read()
+    return str;
+end
+
+-- Utility function to get IMAP password from pass
+function get_imap_password(account)
+    local str = io.popen('pass institutions/' .. account .. '/pass'):read()
+    return str;
+end
+
+-- https://stackoverflow.com/a/11402486
+function case_insensitive_pattern(pattern)
+
+  -- find an optional '%' (group 1) followed by any character (group 2)
+  local p = pattern:gsub("(%%?)(.)", function(percent, letter)
+
+    if percent ~= "" or not letter:match("%a") then
+      -- if the '%' matched, or `letter` is not a letter, return "as is"
+      return percent .. letter
+    else
+      -- else, return a case-insensitive character class of the matched letter
+      return string.format("[%s%s]", letter:lower(), letter:upper())
+    end
+
+  end)
+
+  return p
+end