问如何使用shell脚本解析YAML文件？

EN

configuration:
  account: account1
  warehouse: warehouse1
  database: database1
  object_type:
    schema: schema1
    functions: funtion1
    tables:
      - table: table1
        sql_file_loc: some_path/some_file.sql
      - table: table2
        sql_file_loc: some_path/some_file.sql

for i in $table ;do 
    echo $i
done

function parse_yaml {
   local prefix=$2
   local s='[[:space:]]*' w='[a-zA-Z0-9_]*' fs=$(echo @|tr @ '\034')
   sed -ne "s|^\($s\):|\1|" \
        -e "s|^\($s\)\($w\)$s:$s[\"']\(.*\)[\"']$s\$|\1$fs\2$fs\3|p" \
        -e "s|^\($s\)\($w\)$s:$s\(.*\)$s\$|\1$fs\2$fs\3|p"  $1 |
   awk -F$fs '{
      indent = length($1)/2;
      vname[indent] = $2;
      for (i in vname) {if (i > indent) {delete vname[i]}}
      if (length($3) > 0) {
         vn=""; for (i=0; i<indent; i++) {vn=(vn)(vname[i])("_")}
         printf("%s%s%s=\"%s\"\n", "'$prefix'",vn, $2, $3);
      }
   }'
}

configuration_account="account_name"
configuration_warehouse="warehouse_name"
configuration_database="database_name"
configuration_object_type_schema="schema1"
configuration_object_type_functions="funtion1"
configuration_object_type_tables__sql_file_loc="some_path/some_file.sql"
configuration_object_type_tables__sql_file_loc="some_path/some_file.sql"