fix: range selection (#1487)

Author: 71zenith

ani-cli

@@ -1,6 +1,6 @@
 #!/bin/sh
 
-version_number="4.9.7"
+version_number="4.9.8"
 
 # UI
 
@@ -23,7 +23,14 @@ nth() {
     multi_flag=""
     [ $# -ne 1 ] && shift && multi_flag="$1"
     line=$(printf "%s" "$stdin" | cut -f1,3 | tr '\t' ' ' | launcher "$multi_flag" "$prompt" | cut -d " " -f 1)
-    [ -n "$line" ] && printf "%s" "$stdin" | grep -E '^'"${line}"'($|[[:space:]])' | cut -f2,3 || exit 1
+    line_start=$(printf "%s" "$line" | head -n1)
+    line_end=$(printf "%s" "$line" | tail -n1)
+    [ -n "$line" ] || exit 1
+    if [ -z "$multi_flag" ]; then
+        printf "%s" "$stdin" | grep -E '^'"${line}"'($|[[:space:]])' | cut -f2,3 || exit 1
+    else
+        printf "%s" "$stdin" | sed -n '/^'"${line_start}"'$/,/^'"${line_end}$"'/p' || exit 1
+    fi
 }
 
 die() {