Comments explaining changes in apt output

1 files changed, 5 insertions, 0 deletions

diff --git a/src/selfstrap b/src/selfstrap
index 31c81cf..86bbab4 100755
--- a/src/selfstrap
+++ b/src/selfstrap
@@ -203,11 +203,16 @@ parse_apt_simul_line()
     set -- $*
     action=$1
     package=$2
+    # Third word might either be "(version" or "[version]" depending on which
+    # apt is producing the output. Newer apt versions apparently add an extra
+    # "[version]" parameter, making "(version" the fourth argument.
     version=${3#\(}
     version=${version#\[}
     version=${version%]}
     shift 3
 
+    # Find the last word, which is inside (a group of words that are inside
+    # parentheses).
     while [ "$1" ]; do
         case "$1" in
             *\))