Please correct me in reading application server file with '~' delimiter

I have an application server file.

I need to read the file and keep the data into internal table.

I have the below data in application server file.

2009010_00000011230001203085_0000114792110~ _43958.780.000_USD ~

2009010_00000011210001224106_0000114792110~ _136402.290.000_USD ~

2009010_00000407700004001024_0000114792110~ _-132632.930.000_USD ~

2009010_00000011200001201010_0000114792110~ _715218.250.000_USD ~

I have declared my internal table as....

*-Type for input file internal table.

TYPES : BEGIN OF tp_input_trans_file_data,

posting_period TYPE char07, " Posting period

grp_account TYPE char10, " Group Account Number

account TYPE char10, " G/L account number

cost_center TYPE char10, " Cost Center

currency_type TYPE char3, " 3-Byte field

document_type TYPE char_02, " Document type

amount_balance TYPE p DECIMALS 2," 17 2 Total of transactions of the period in group currency

quantity_balance TYPE p DECIMALS 3," MENGE_D, " Total of the transactions of period in units of measure

currency_code TYPE waers_curc, " Currency Key

unit_of_meas TYPE lagme, " Base Unit of Measure

END OF tp_input_trans_file_data.

Reading input file in below routine...

Form read_input_file.

DATA : wa_ip_fline TYPE string.

DATA : h_offset TYPE i VALUE '0',

lv_amt_bal TYPE char17,

lv_qty_bal TYPE char17.

• The file mentioned in the server file path is created.

OPEN DATASET p_ifname FOR INPUT IN TEXT MODE ENCODING DEFAULT.

DO.

CLEAR : wa_ip_fline, h_offset.

READ DATASET p_ifname INTO wa_ip_fline.

IF sy-subrc NE 0.

EXIT.

ELSE.

*put corresponsing values of file into workarea

SPLIT wa_ip_fline AT '~'

INTO wa_trans_file_data-posting_period

wa_trans_file_data-grp_account

wa_trans_file_data-account

wa_trans_file_data-cost_center

wa_trans_file_data-currency_type

wa_trans_file_data-document_type

lv_amt_bal

lv_qty_bal

wa_trans_file_data-currency_code

wa_trans_file_data-unit_of_meas.

wa_trans_file_data-amount_balance = lv_amt_bal .

wa_trans_file_data-quantity_balance = lv_qty_bal.

APPEND wa_trans_file_data TO p_itab_trans_file_data.

CLEAR : wa_trans_file_data.

ENDIF.

ENDDO.

CLOSE DATASET p_ifname.

Please validate above idea is correct or not ?

However, say for even first record

2009010_00000011230001203085_0000114792110~ _43958.780.000_USD ~

'~' value is sitting in last field which is not correct and hwo to avoid this ?

POSTING_PERIOD = 2009010

GRP_ACCOUNT = 0000001120

ACCOUNT = 0001201010

COST_CENTER = 0000114792

CURRENCY_TYPE = 110

DOCUMENT_TYPE =

AMOUNT_BALANCE = 715218.25

QUANTITY_BALANCE = 0.000

CURRENCY_CODE = USD

UNIT_OF_MEAS = ~

YOUR HELP IS HIGHLY APPRECIATED. THANKS IN ADVANCE.