Move under www to ease rsync

2025-10-29 10:51:15 +01:00
parent 2bb22c7583
commit 30ad62e938
890 changed files with 0 additions and 0 deletions
--- a/www/eps/hpr2483/hpr2483_range_parse.sh
+++ b/www/eps/hpr2483/hpr2483_range_parse.sh
@@ -0,0 +1,106 @@
+#===  FUNCTION  ================================================================
+#         NAME: range_parse
+#  DESCRIPTION: Parse a comma-separated list of numbers and "number-number"
+#               ranges such as '1,3,5-7,9'
+#   PARAMETERS: 1 - maximum limit of the range
+#               2 - entered range expression (e.g. 1-3,7,14)
+#               3 - name of the variable to receive the result
+#      RETURNS: Writes a list of values to the nominated variable and returns
+#               0 (true) if the range parsed, and 1 (false) if not
+#===============================================================================
+function range_parse {
+    local max=${1?range_parse: arg1 missing}
+    local range=${2?range_parse: arg2 missing}
+    local -n result=${3?range_parse: arg3 missing}
+
+    local item selection sel err msg exitcode=0
+
+    #
+    # Remove spaces from the range
+    #
+    range=${range// /}
+
+    #
+    # Check for invalid characters
+    #
+    if [[ $range =~ [^0-9,-] ]]; then
+        echo "Invalid range: $range"
+        return 1
+    fi
+
+    #
+    # Slice up the sub-ranges separated by commas and turn all n-m expressions
+    # into the intermediate values. Trim the trailing space from the
+    # concatenation.
+    #
+    until [[ -z $range ]]; do
+        #
+        # Get a comma-separated item
+        #
+        if [[ $range =~ [,] ]]; then
+            item=${range%%,*}
+            range=${range#*,}
+        else
+            item=$range
+            range=
+        fi
+
+        #
+        # Look for a 'number-number' expression
+        #
+        if [[ $item =~ [-] ]]; then
+            if [[ $item =~ ^([0-9]{1,})-([0-9]{1,})$ ]]; then
+                item=$(eval "echo {${item/-/..}}")
+            else
+                echo "Invalid sequence: ${item}"
+                item=
+                exitcode=1
+            fi
+        fi
+        selection+="$item "
+    done
+
+    #
+    # Check for out of bounds problems, sort the values and and make unique
+    #
+    if [[ -n $selection ]]; then
+
+        #
+        # Validate the resulting range
+        #
+        for i in $selection; do
+            if [[ $i -lt 1 || $i -gt $max ]]; then
+                err+="$i "
+            else
+                sel+="$i "
+            fi
+        done
+
+        #
+        # Report any out of range errors
+        #
+        if [[ ${err+"${err}"} ]]; then
+            msg="$(for i in ${err}; do echo "$i"; done | sort -un)"
+            msg="${msg//$'\n'/ }"
+            printf "Value(s) out of range: %s\n" "${msg}"
+            exitcode=1
+        fi
+
+        #
+        # Rebuild the selection after having removed errors
+        #
+        selection=
+        if [[ ${sel+"${sel}"} ]]; then
+            selection="$(for i in ${sel}; do echo "$i"; done | sort -un)"
+            selection="${selection//$'\n'/ }"
+        fi
+    fi
+
+    #
+    # Return the result
+    #
+    result="$selection"
+
+    return $exitcode
+}
+