container: hledger-flow: discover: add uniform quotes

- Allows undesirable characters in variable-text columns
- Related refactoring

container/src/hledger-flow/accounts/discover/discover-shared.bash

@@ -40,7 +40,9 @@ function parse_credit()
 
   # NOTE: sed needed to remove CR. TODO: use gawk
   sed 's:\r::g' "$global_in_path" \
-    | gawk -v global_year="$global_year" -v global_subaccount="$global_subaccount" \
+    | gawk --csv \
+      -v global_year="$global_year" \
+      -v global_subaccount="$global_subaccount" \
       '{
          if (NR<2 || $1 !~ global_year)
            next
@@ -49,38 +51,42 @@ function parse_credit()
          printf $2 OFS  # Post Date
 
          # Description
-         gsub(/, /, " ")    # may have comma(s) followed by space
-         sub(/%/, "%%", $3) # remove potential interpretation
-         printf $3 OFS
+         sub(/%/, "%%", $3)
+         gsub(/"/, "", $3)
+         printf "\"" $3 "\"" OFS
 
          # Flip the amount signs for proper liabilities accounting
          direction=($4 > 0 ? "OUT" : "IN")
          sub("-", "", $4)
          printf $4 OFS  # Amount
 
-         printf $5 OFS  # Category
+         printf "\"" $5 "\"" OFS  # Category
 
          printf direction OFS
          printf global_subaccount
 
          printf "\n"
 
-      }' FS=, OFS=, >"$global_out_path"
+      }' OFS=, >"$global_out_path"
 }
 
 function parse_bank()
 {
   lib_preprocess::assert_header "Transaction Date,Transaction Description,Transaction Type,Debit,Credit,Balance"
 
-  gawk -v global_year="$global_year" -v global_subaccount="$global_subaccount" \
+  gawk --csv \
+    -v global_year="$global_year" \
+    -v global_subaccount="$global_subaccount" \
     '{
        if (NR<2 || $1 !~ global_year)
          next
 
        printf $1 OFS  # Transaction Date
 
+       # Transaction Description
        sub(/%/, "%%", $2)
-       printf $2 OFS  # Transaction Description
+       gsub(/"/, "", $2)
+       printf "\"" $2 "\"" OFS
 
        printf $3 OFS  # Transaction Type
 
@@ -99,7 +105,7 @@ function parse_bank()
 
        printf "\n"
 
-    }' FS=, OFS=, "$global_in_path" >"$global_out_path"
+    }' OFS=, "$global_in_path" >"$global_out_path"
 }
 
 function main()