Zenity checklist from string variable

Question

I'm trying to build a Zenity checklist from some arrays. My current approach is to loop over the arrays, build a string and pass it to Zenity, like this:

#!/bin/bash

column0=( "row 0" )
column1=( "row 0" )

column0+=( "row 1" )
column1+=( "row 1")

column0+=( "row 2" )
column1+=( "row 2" )

table=''

for (( i=0; i<${#column0[@]}; i++ ))
do
    table="$table TRUE \"${column0[$i]}\" \"${column1[$i]}\""
done

echo $table

zenity  --list --checklist --width=600 --height=450 \
   --column="column 0"  \
   --column="column 1"  \
   --column="column 2"  \
   $table

The thing is, this is not working and the checklist is all broken, despite the echo sentence yields a correct string. Is there any issue in how I pass the string to Zenity?

Answer 1

table needs to be an array for the same reason you made column0 and column1 arrays: to protect whitespace that is part of each element.

column0=( "row 0" "row 1" "row 2")
column1=( "row 0" "row 1" "row 2")

table=()  
for (( i=0; i<${#column0[@]}; i++ ))
do
    table+=(TRUE "${column0[$i]}" "${column1[$i]}")
done

zenity  --list --checklist --width=600 --height=450 \
   --column="column 0"  \
   --column="column 1"  \
   --column="column 2"  \
   "${table[@]}"