Align rule table display widths

lib/common.sh

@@ -57,18 +57,16 @@ log_ok() { _log_with_color "${CLR_GREEN}" OK "$@"; }
 
 display_width() {
   local input=${1-}
-  awk -v str="${input}" 'BEGIN {
-    n = split(str, chars, "")
-    width = 0
-    for (i = 1; i <= n; i++) {
-      if (chars[i] ~ /[ -~]/) {
-        width += 1
-      } else {
-        width += 2
-      }
-    }
-    print width
-  }'
+  local char code width=0
+  while IFS= read -r -n1 char; do
+    code=$(printf '%d' "'${char}")
+    if (( code >= 32 && code <= 126 )); then
+      ((width += 1))
+    else
+      ((width += 2))
+    fi
+  done < <(printf '%s' "${input}")
+  printf '%s\n' "${width}"
 }
 
 repeat_char() {

lib/rules_mgr.sh

@@ -146,6 +146,12 @@ rule_health_mark() {
   fi
 }
 
+render_rules_row() {
+  printf '%s %s %s %s %s %s %s %s\n' \
+    "$(pad_right "${1-}" 3)" "$(pad_right "${2-}" 10)" "$(pad_right "${3-}" 10)" "$(pad_right "${4-}" 32)" \
+    "$(pad_right "${5-}" 10)" "$(pad_right "${6-}" 12)" "$(pad_right "${7-}" 4)" "${8-}"
+}
+
 render_rules_plain() {
   local -a lines=("$@")
   local line idx uuid proto lport tip tport ipver desc health
@@ -154,7 +160,7 @@ render_rules_plain() {
     return 0
   fi
 
-  printf '%-3s %-10s %-10s %-32s %-10s %-12s %-4s %s\n' '#' '协议' '本地端口' '目标地址' '目标端口' 'IP版本' '状态' '描述'
+  render_rules_row '#' '协议' '本地端口' '目标地址' '目标端口' 'IP版本' '状态' '描述'
   for ((idx = 0; idx < ${#lines[@]}; idx++)); do
     line=${lines[idx]}
     uuid=$(rule_field "${line}" uuid)
@@ -165,8 +171,7 @@ render_rules_plain() {
     ipver=$(rule_ipver_label "$(rule_field "${line}" ipver)")
     desc=$(rule_field "${line}" desc || true)
     health=$(rule_health_mark "${line}")
-    printf '%-3s %-10s %-10s %-32s %-10s %-12s %-4s %s\n' \
-      "$((idx + 1))" "${proto}" "${lport}" "${tip}" "${tport}" "${ipver}" "${health}" "${desc}"
+    render_rules_row "$((idx + 1))" "${proto}" "${lport}" "${tip}" "${tport}" "${ipver}" "${health}" "${desc}"
   done
 }