Fix processingi of irregular pathes liks ///tmp//./b/.

rdlink.sh

@@ -21,10 +21,11 @@ rl::rdlink() {
   local work=
   local resolved=0
 
-  info "pwd: $(pwd)"
-  info "Processing... $@"
+  info "rd::link Processing... $@"
+  info "                  pwd: $(pwd)"
+
+  subject="$(rl::cleanpath "${1:-}")" || true
 
-  subject="$(rl::normalize "${1:-}")" || true
   # Follow multiple symlinks
   while subject="$(rl::quicklink "${subject}")" ; do
     # A link was resolved at least once
@@ -49,11 +50,11 @@ rl::rdlink() {
     # Special: Links resolved to something like: /proc/2267178/fd/pipe:[22306727]
     # are not existing files but `readlink -f` prints result anyway
     # Printing result if a link was resolved at least once
-    if (( ! resolved )); then
+    #if (( ! resolved )); then
       info "rl::rdlink exit - invalid path ${subject}"
       printf "\n"
       return 1
-    fi
+    #fi
   else
     subject="${work}"
   fi
@@ -115,9 +116,11 @@ rl::canon() {
   return 0
 }
 
-rl::normalize() {
+rl::cleanpath() {
   local work=
-  info "Normalizing... ${1:-}"
+  local rex_tmp=
+
+  info "rl::cleanpath...${1:-}"
   
   work="${1:-}"
   # Remove multiple /
@@ -125,6 +128,38 @@ rl::normalize() {
     work="${work//'//'/'/'}"
   done
   
+  info "rl::cleanpath result: ${work}"
+  printf -- "${work}\n"
+}
+
+rl::normalize() {
+  local work=
+
+  info "rl::normalize...${1:-}"
+
+   work="${1:-}"
+  # Remove dir/.. sequences.
+  local rex_tmp='[^/][^/]*/\.\./*'
+  while [[ "${work}" =~ $rex_tmp ]] ; do
+    work="${work/"${BASH_REMATCH[0]}"/}"
+  done
+
+  # Remove /./ or /.$ sequences.
+  rex_tmp='/\.(/|$)'
+  while [[ "$work" =~ $rex_tmp ]]; do
+    work="${work/"${BASH_REMATCH[0]}"/"${BASH_REMATCH[1]/$//}"}"
+  done
+
+  # Remove leading ./
+  work="${work#./*}"
+
+  # Remove trailing /
+  rex_tmp='(.*[^/])/$'
+  if [[ "${work}" =~ $rex_tmp ]] ; then
+    work="${BASH_REMATCH[1]}"
+  fi
+
+  info "rl::normalize result: ${work}"
   printf -- "${work}\n"
 }