Now does four additional things:

# trim leading white space
# trim trailing white space
# removing empty lines
# join a trailing [ with the next line

LDP/lampadas/database/tables/common.input

@@ -1,2 +1,19 @@
 #!/bin/sed -f
+
+# escape single unprotected quotes with a backslash
 s#\([^\\']\)'\([^']\)#\1''\2#g
+
+# trim leading white space
+s#^[[:space:]]*##
+
+# trim trailing white space
+s#[[:space:]]*$##
+
+# removing empty lines
+/^$/d
+
+# join a trailing [ with the next line
+/\[$/ {
+  N
+  s#\[[[:space:]]*#[#
+}