quetion about verilog code..

[hsc6320]

I'm from korean and i'm a university student in the korea
I'm 24 years old.. i can't speak english well. i hope you to understand my english skill
because i have to hurry up this code, i'm writing a this thread

i'm studying verilog
but, this code is generated problem
I can't understand this error....
I must to complete this code
please..ㅠㅠ
I want to your comment

Error massage is "near ' data_1' : syntax error, unexpected 'IDENTIFIER' "


module enco (code,code_1, data_1,data_2);
output [3:0] code;
output [3:0] code_1;
input [0:7] data_1;
input [8:15] data_2;
reg [3:0] code;
reg [3:0] code_1;

(e-mail address removed))
begin
if(data_1[0] == 4'b0000
data_1[1] == 4'b0010,
data_1[2] == 4'b0010,
data_1[3] == 4'b0010,
data_1[4] == 4'b0010,
data_1[5] == 4'b0010,
data_1[6] == 4'b0000,
data_1[7] == 4'b0000)
code = 5;
if(data_1[0] == 4'b0000
data_1[1] == 4'b0101,
data_1[2] == 4'b0101,
data_1[3] == 4'b0111,
data_1[4] == 4'b0001,
data_1[5] == 4'b0001,
data_1[6] == 4'b0000,
data_1[7] == 4'b0000)
code = 9;
if(data_1[0] == 4'b0000
data_1[1] == 4'b0111,
data_1[2] == 4'b0100,
data_1[3] == 4'b0111,
data_1[4] == 4'b0101,
data_1[5] == 4'b0111,
data_1[6] == 4'b0000,
data_1[7] == 4'b0000)
code = 12;
if(data_1[0] == 4'b0000
data_1[1] == 4'b0111,
data_1[2] == 4'b0101,
data_1[3] == 4'b0001,
data_1[4] == 4'b0001,
data_1[5] == 4'b0001,
data_1[6] == 4'b0000,
data_1[7] == 4'b0000)
code = 8;

if(data_1[0] == 4'b0000
data_1[1] == 4'b0111,
data_1[2] == 4'b0101,
data_1[3] == 4'b0111,
data_1[4] == 4'b0101,
data_1[5] == 4'b0111,
data_1[6] == 4'b0000,
data_1[7] == 4'b0000)
code = 13; else
code = 4'b0000;
end

(e-mail address removed))
begin
if(data_2[8] == 4'b0000
data_2[9] == 4'b0010,
data_2[10] == 4'b0010,
data_2[11] == 4'b0010,
data_2[12] == 4'b0010,
data_2[13] == 4'b0010,
data_2[14] == 4'b0000,
data_2[15] == 4'b0000)
code_1 = 5;
if(data_2[8] == 4'b0000
data_2[9] == 4'b0101,
data_2[10] == 4'b0101,
data_2[11] == 4'b0111,
data_2[12] == 4'b0001,
data_2[13] == 4'b0001,
data_2[14] == 4'b0000,
data_2[15] == 4'b0000)
code_1 = 9;
if(data_2[8] == 4'b0000
data_2[9] == 4'b0111,
data_2[10] == 4'b0100,
data_2[11] == 4'b0111,
data_2[12] == 4'b0101,
data_2[13] == 4'b0111,
data_2[14] == 4'b0000,
data_2[15] == 4'b0000)
code_1 = 12;
if(data_2[8] == 4'b0000
data_2[9] == 4'b0111,
data_2[10] == 4'b0101,
data_2[11] == 4'b0001,
data_2[12] == 4'b0001,
data_2[13] == 4'b0001,
data_2[14] == 4'b0000,
data_2[15] == 4'b0000)
code_1 = 8;

if(data_2[8] == 4'b0000
data_2[9] == 4'b0111,
data_2[10] == 4'b0101,
data_2[11] == 4'b0111,
data_2[12] == 4'b0101,
data_2[13] == 4'b0111,
data_2[14] == 4'b0000,
data_2[15] == 4'b0000)
code_1 = 13; else
code_1 = 4'b0000;
end
endmodule