much better encoding

1 files changed, 19 insertions, 3 deletions

diff --git a/bos-namespaces.sh b/bos-namespaces.sh
index 9fbbb08..fd371c3 100644
--- a/bos-namespaces.sh
+++ b/bos-namespaces.sh
@@ -1,22 +1,38 @@
 #!bash
 ## namespace handling
 
+function bos-namespaces/encode-into() {
+    local string="$1"
+    local -n result="$2"
+    local idx char tmp
+
+    result=''
+    for (( idx=0 ; idx < "${#string}" ; ++idx )); do
+        char="${string:$idx:1}"
+        case "$char" in
+            [0-9A-Za-z]) tmp="$char";;
+            *) printf -v tmp _%02x "'$char"
+        esac
+        result+="$tmp"
+    done
+}
+
 function bos-namespaces/store-scalar-for-into() {
-    local name="bos_namespaces__${2//[^[:word:]/__}__${1//[^[:word:]]/__}"
+    local name; bos-namespaces/encode-into "bos_${2}_${1}" name
     local -n result="$3"
     declare -g "$name"
     result="$name"
 }
 
 function bos-namespaces/store-array-for-into() {
-    local name="bos_namespaces__${2//[^[:word:]/__}__${1//[^[:word:]]/__}"
+    local name; bos-namespaces/encode-into "bos_${2}_${1}" name
     local -n result="$3"
     declare -ga "$name"
     result="$name"
 }
 
 function bos-namespaces/store-dict-for-into() {
-    local name="bos_namespaces__${2//[^[:word:]/__}__${1//[^[:word:]]/__}"
+    local name; bos-namespaces/encode-into "bos_${2}_${1}" name
     local -n result="$3"
     declare -gA "$name"
     result="$name"