Improve the help display for big size values

CHANGELOG.md

 # Changelog
 
+## 2.0.1
+* Improve the help display for big size values
+
 ## 2.0.0
 * Add version and Changelog
 * Add enum type

VERSION

-2.0.0
+2.0.1

bashopts.sh

@@ -19,7 +19,7 @@
 
 set -e
 
-BASHOPTS_VERSION=2.0.0
+BASHOPTS_VERSION=2.0.1
 
 bashopts_exit_handle() {
   local err=$?
@@ -428,20 +428,21 @@ bashopts_dump_value() {
 bashopts_diplay_help() {
     local elts optargs_max_len=8 val ncol line
     declare -A optargs
-    ncol=$(tput cols || true) 2> /dev/null
+    ncol=$(tput cols 2> /dev/null || true)
+    ncol=${ncol:-160}
+    local value_max_len=$(( $ncol / 4 ))
     # compute the good arguments comumn size
     for op in "${bashopts_optlist[@]}"; do
         elts=()
         unset val
         if ! [[ $op =~ ^__.*__$ ]] && [[ -v $op ]]; then
-            val=" $(bashopts_dump_value $op)"
+            val=" $(bashopts_dump_value $op | tr -d '\n')"
         fi
         if [[ -v bashopts_optprop_short_opt[$op] ]]; then elts+=("-${bashopts_optprop_short_opt[$op]}"); fi
         if [[ -v bashopts_optprop_long_opt[$op] ]]; then elts+=("--${bashopts_optprop_long_opt[$op]}"); fi
-        optargs[$op]="$(bashopts_join_by , ${elts[@]})$val"
+        optargs[$op]="$(bashopts_join_by , ${elts[@]})${val:0:${value_max_len}}"
         optargs_max_len=$(bashopts_math_max $optargs_max_len ${#optargs[$op]})
     done
-    ncol=${ncol:-160}
     optargs_max_len=$(bashopts_math_min $optargs_max_len $(( $ncol / 3 )) )
     # display global info
     echo
@@ -454,32 +455,33 @@ bashopts_diplay_help() {
     echo "OPTIONS:"
     for op in "${bashopts_optlist[@]}"; do
         # display arguments, value if available, description, and additional info if available
-        printf "    %-${optargs_max_len}s        %s\n" "${optargs[$op]}" "${bashopts_optprop_description[$op]} $(
-            if ! [[ $op =~ ^__.*__$ ]]; then
-                # display additional information the each properties
-                # discarding special options like --help
-                echo -n "- [\$$op] (type:${bashopts_optprop_type[$op]}"
-                if [[ -v bashopts_optprop_expression[$op] ]]; then
-                    echo -n ", default:\"${bashopts_optprop_expression[$op]//\"/\\\"}\""
-                elif [[ -v bashopts_optprop_default[$op] ]]; then
-                    if [[ "${bashopts_optprop_type[$op]}" =~ ^(string|enumeration)$ ]]; then
-                        echo -n ", default:\"${bashopts_optprop_default[$op]//\"/\\\"}\""
-                    else
-                        echo -n ", default:${bashopts_optprop_default[$op]}"
-                    fi
+        printf "    %-${optargs_max_len}s    ${bashopts_optprop_description[$op]}" "${optargs[$op]}"
+        if ! [[ $op =~ ^__.*__$ ]]; then
+            # display additional information the each properties
+            # discarding special options like --help
+            echo -n " - [\$$op] (type:${bashopts_optprop_type[$op]}"
+            if [[ -v bashopts_optprop_expression[$op] ]]; then
+                printf ", default: \"%.${value_max_len}s\"" "$(tr -d '\n' <<< "${bashopts_optprop_expression[$op]//\"/\\\"}")"
+            elif [[ -v bashopts_optprop_default[$op] ]]; then
+                if [[ "${bashopts_optprop_type[$op]}" =~ ^(string|enumeration)$ ]]; then
+                    printf ", default: \"%.${value_max_len}s\"" "$(tr -d '\n' <<< "${bashopts_optprop_default[$op]//\"/\\\"}")"
                 else
-                    elts=")"
+                    printf ", default: %.${value_max_len}s" "$(tr -d '\n' <<< "${bashopts_optprop_default[$op]}")"
                 fi
-                if [ "${bashopts_optprop_type[$op]}" == "enumeration" ]; then
-                    echo -n ", accepted values:$(
-                        while read -r line; do
-                            echo -n " '${line##*|}'"
-                        done <<< "${bashopts_optprop_enum_values[$op]}"
-                    )"
-                fi
-                echo -n ")"
+            else
+                elts=")"
+            fi
+            if [ "${bashopts_optprop_type[$op]}" == "enumeration" ]; then
+                echo -n ", accepted values:$(
+                    while read -r line; do
+                        echo -n " '${line##*|}'"
+                    done <<< "${bashopts_optprop_enum_values[$op]}"
+                )"
             fi
-        )"
+            echo ")"
+        else
+            echo ""
+        fi
     done
     test "$1" != "-e" || exit $2
 }
@@ -492,13 +494,14 @@ bashopts_diplay_help_delayed() {
 # display all otions values and properties
 bashopts_diplay_summary() {
     local elts desc_max_len=0 val dval
+    local value_max_len=$(( $ncol / 4 ))
     declare -A optargs
     for op in "${bashopts_optlist[@]}"; do
         desc_max_len=$(bashopts_math_max $desc_max_len ${#bashopts_optprop_description[$op]})
     done
     for op in "${bashopts_optlist[@]}"; do
         if ! [[ $op =~ ^__.*__$ ]]; then
-            printf "* %-${desc_max_len}s : $(bashopts_dump_value $op)\n" "${bashopts_optprop_description[$op]}"
+            printf "* %-${desc_max_len}.${value_max_len}s : $(bashopts_dump_value $op | tr -d '\n')\n" "${bashopts_optprop_description[$op]}"
         fi
     done
 }

test.sh

@@ -89,7 +89,7 @@ _test_case_4() {
     req_test_eq "${array_value[1]}" "value 2"
     req_test_eq "${array_value[2]}" "value '\"' \$3"
     req_test_eq "$(cat /tmp/bashopts_testrc)" "array_value=([0]=\"value1\" [1]=\"value 2\" [2]=\"value '\\\"' \\\$3\")"
-    req_test_eq "$(bashopts_diplay_help | grep -E -o "^\\s+\-\-value \[\"value1\", \"value 2\", \"value '\\\\\"' \\\$3\"]\s+")" "    --value [\"value1\", \"value 2\", \"value '\\\"' \$3\"]        "
+    req_test_eq "$(bashopts_diplay_help | grep -E -o "^\\s+\-\-value \[\"value1\", \"value 2\", \"value '\\\\\"' \\\$3\"]\s+")" "    --value [\"value1\", \"value 2\", \"value '\\\"' \$3\"]    "
 }
 
 _test_case_5() {