Merge pull request #40 from rahulp13/master

port to python3

1 files changed, 1019 insertions, 838 deletions

diff --git a/src/model_generation.py b/src/model_generation.py
index e507b55..da8e272 100644
--- a/src/model_generation.py
+++ b/src/model_generation.py
@@ -1,852 +1,1033 @@
-#!/usr/bin/env python
+#!/usr/bin/python3
 
-"""#!/usr/bin/python """
 import re
-import sys
 import os
 
-#######Script start from here
-print "Arguement is :", sys.argv[1]
-fname = os.path.basename(sys.argv[1])
-print "VHDL filename is :",fname
-home = os.path.expanduser("~")
-###########Creating connection_info.txt file from vhdl file#####################
-read_vhdl = open(sys.argv[1],'r')
-vhdl_data = read_vhdl.readlines()
-read_vhdl.close()
-
-start_flag = -1 #Used for scaning part of data
-scan_data=[]
-#p=re.search('port(.*?)end',read_vhdl,re.M|re.I|re.DOTALL).group()
-
-for item in vhdl_data:
-    if re.search('port',item,re.I):
-        start_flag = 1
-        
-    elif re.search("end",item,re.I):
-        start_flag = 0
-    else:
-        pass
-
-    if start_flag == 1:
-        item=re.sub("port", " ", item, flags=re.I)
-        item=re.sub("\(", " ", item, flags=re.I)
-        item=re.sub("\)", " ", item, flags=re.I)
-        item=re.sub(";"," ",item,flags=re.I)
-        
-        scan_data.append(item.rstrip())
-        scan_data=filter(None, scan_data)
-    elif start_flag == 0:
-        break
-    
-#print "Scan Data",scan_data
-port_info=[]
-port_vector_info = []
-
-for item in scan_data:
-    print "Scan Data :",item
-    if re.search("in",item,flags=re.I):
-        if re.search("std_logic_vector",item,flags=re.I):
-            temp=re.compile(r"\s*std_logic_vector\s*",flags=re.I)
-        elif re.search("std_logic",item,flags=re.I):
-            temp=re.compile(r"\s*std_logic\s*",flags=re.I)
-        else:
-            print "Please check your vhdl code for datatype of input port"
-            sys.exit()
-    elif re.search("out",item,flags=re.I):
-        if re.search("std_logic_vector",item,flags=re.I):                                                                                      
-            temp=re.compile(r"\s*std_logic_vector\s*",flags=re.I)                                                               
-        elif re.search("std_logic",item,flags=re.I):                                                                                           
-            temp=re.compile(r"\s*std_logic\s*",flags=re.I)                                                                      
-        else:                                                                                                                                  
-            print "Please check your vhdl code for datatype of output port"
-            sys.exit()
-    else:
-        print "Please check the in/out direction of your port"
-        sys.exit()
-        
-    lhs=temp.split(item)[0]
-    rhs=temp.split(item)[1]
-    bit_info=re.compile(r"\s*downto\s*",flags=re.I).split(rhs)[0]
-    if bit_info:
-        port_info.append(lhs+":"+str(int(bit_info)+int(1)))
-        port_vector_info.append(1)
-    else:
-        port_info.append(lhs+":"+str(int(1)))
-        port_vector_info.append(0)
-
-print "Port Info :",port_info
-
-#Open connection_info.txt file 
-
-con_ifo=open('connection_info.txt','w')
-
-for item in port_info:
-    word=item.split(':')
-    con_ifo.write(word[0].strip()+' '+word[1].strip()+' '+word[2].strip())
-    con_ifo.write("\n")
-con_ifo.close()
-############### Reading connection/port information#############################
-
-#Declaring input and output list
-input_list=[]
-output_list=[]
-
-#Reading connection_info.txt file for port infomation
-read_file=open('connection_info.txt','r')
-data=read_file.readlines()
-read_file.close()
-
-#Extracting input and output port list from data
-print "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
-for line in data:
-    print line
-    if re.match(r'^\s*$', line):
-        pass
-        #print "Blank Line"
-    else:
-        in_items=re.findall("IN",line,re.MULTILINE|re.IGNORECASE)
-        out_items=re.findall("OUT",line,re.MULTILINE|re.IGNORECASE)
-        #print "Line",line
-        if in_items:
-            input_list.append(line.split())
-            #print "Found IN"
-        else:
-            pass
-            #print "Not Found"
-        
-        if out_items:
-            output_list.append(line.split())
-            #print "Found Out"
-        else:
-            pass
-
-print "Inout List :",input_list
-print "Output list",output_list
-input_port=[]
-output_port=[]
-#creating list of input and output port with its weight 
-for input in input_list:
-    input_port.append(input[0]+":"+input[2])
-    #print "Input List: ",input
-for output in output_list:
-    output_port.append(output[0]+":"+output[2])
-    #print "Output List: ",output
-
-print "Output Port List : ",output_port
-print "Input Port List : ",input_port
-
-######################Creating content for cfunc.mod file#######################
-print "Starting With cfunc.mod file"
-cfunc=open('cfunc.mod','w')
-
-print "Building content for cfunc.mod file"
-
-comment='''/* This is cfunc.mod file auto generated by gen_con_info.py
-Developed by Fahim, Rahul at IIT Bombay */ \n 
+
+class ModelGeneration:
+
+    def __init__(self, file):
+
+        # Script starts from here
+        print("Arguement is : ", file)
+        self.fname = os.path.basename(file)
+        print("VHDL filename is : ", self.fname)
+        self.home = os.path.expanduser("~")
+
+        # #### Creating connection_info.txt file from vhdl file #### #
+        read_vhdl = open(file, 'r')
+        vhdl_data = read_vhdl.readlines()
+        read_vhdl.close()
+
+        start_flag = -1  # Used for scaning part of data
+        scan_data = []
+        # p=re.search('port(.*?)end',read_vhdl,re.M|re.I|re.DOTALL).group()
+
+        for item in vhdl_data:
+            if re.search('port', item, re.I):
+                start_flag = 1
+
+            elif re.search("end", item, re.I):
+                start_flag = 0
+
+            if start_flag == 1:
+                item = re.sub("port", " ", item, flags=re.I)
+                item = re.sub("\(", " ", item, flags=re.I)      # noqa
+                item = re.sub("\)", " ", item, flags=re.I)      # noqa
+                item = re.sub(";", " ", item, flags=re.I)
+
+                scan_data.append(item.rstrip())
+                scan_data = [_f for _f in scan_data if _f]
+            elif start_flag == 0:
+                break
+
+        port_info = []
+        self.port_vector_info = []
+
+        for item in scan_data:
+            print("Scan Data :", item)
+            if re.search("in", item, flags=re.I):
+                if re.search("std_logic_vector", item, flags=re.I):
+                    temp = re.compile(r"\s*std_logic_vector\s*", flags=re.I)
+                elif re.search("std_logic", item, flags=re.I):
+                    temp = re.compile(r"\s*std_logic\s*", flags=re.I)
+                else:
+                    raise ValueError("Please check your vhdl " +
+                                     "code for datatype of input port")
+            elif re.search("out", item, flags=re.I):
+                if re.search("std_logic_vector", item, flags=re.I):
+                    temp = re.compile(r"\s*std_logic_vector\s*", flags=re.I)
+                elif re.search("std_logic", item, flags=re.I):
+                    temp = re.compile(r"\s*std_logic\s*", flags=re.I)
+                else:
+                    raise ValueError("Please check your vhdl " +
+                                     "code for datatype of output port")
+            else:
+                raise ValueError(
+                    "Please check the in/out direction of your port"
+                )
+
+            lhs = temp.split(item)[0]
+            rhs = temp.split(item)[1]
+            bit_info = re.compile(r"\s*downto\s*", flags=re.I).split(rhs)[0]
+            if bit_info:
+                port_info.append(lhs + ":" + str(int(bit_info) + int(1)))
+                self.port_vector_info.append(1)
+            else:
+                port_info.append(lhs + ":" + str(int(1)))
+                self.port_vector_info.append(0)
+
+        print("Port Info :", port_info)
+
+        # Open connection_info.txt file
+        con_ifo = open('connection_info.txt', 'w')
+
+        for item in port_info:
+            word = item.split(':')
+            con_ifo.write(
+                word[0].strip() + ' ' + word[1].strip() + ' ' + word[2].strip()
+            )
+            con_ifo.write("\n")
+        con_ifo.close()
+
+    def readPortInfo(self):
+
+        # ############## Reading connection/port information ############## #
+
+        # Declaring input and output list
+        input_list = []
+        output_list = []
+
+        # Reading connection_info.txt file for port infomation
+        read_file = open('connection_info.txt', 'r')
+        data = read_file.readlines()
+        read_file.close()
+
+        # Extracting input and output port list from data
+        print("xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx")
+        for line in data:
+            print(line)
+            if re.match(r'^\s*$', line):
+                pass
+            else:
+                in_items = re.findall(
+                    "IN", line, re.MULTILINE | re.IGNORECASE
+                )
+                out_items = re.findall(
+                    "OUT", line, re.MULTILINE | re.IGNORECASE
+                )
+                if in_items:
+                    input_list.append(line.split())
+
+                if out_items:
+                    output_list.append(line.split())
+
+        print("Inout List :", input_list)
+        print("Output list", output_list)
+
+        self.input_port = []
+        self.output_port = []
+
+        # creating list of input and output port with its weight
+        for input in input_list:
+            self.input_port.append(input[0]+":"+input[2])
+        for output in output_list:
+            self.output_port.append(output[0]+":"+output[2])
+
+        print("Output Port List : ", self.output_port)
+        print("Input Port List : ", self.input_port)
+
+    def createCfuncModFile(self):
+
+        # ############## Creating content for cfunc.mod file ############## #
+
+        print("Starting With cfunc.mod file")
+        cfunc = open('cfunc.mod', 'w')
+        print("Building content for cfunc.mod file")
+
+        comment = '''/* This is cfunc.mod file auto generated by gen_con_info.py
+        Developed by Fahim, Rahul at IIT Bombay */\n
+                '''
+
+        header = '''
+        #include <stdio.h>
+        #include <math.h>
+        #include <string.h>
+        #include <time.h>
+        #include <sys/socket.h>
+        #include <sys/types.h>
+        #include <netinet/in.h>
+        #include <netdb.h>
+        #include <stdlib.h>
+        #include <unistd.h>
+        #include <errno.h>
         '''
 
-header='''
-#include <stdio.h>                                                                                                                             
-#include <math.h>                                                                                                                              
-#include <string.h>                                                                                                                            
-#include <time.h>                                                                                                                              
-#include <sys/socket.h>                                                                                                                        
-#include <sys/types.h>                                                                                                                         
-#include <netinet/in.h>                                                                                                                        
-#include <netdb.h>                                                                                                                             
-#include <stdlib.h>                                                                                                                            
-#include <unistd.h>                                                                                                                            
-#include <errno.h> 
-'''
-
-function_open='''void cm_'''+fname.split('.')[0]+'''(ARGS) \n{'''
-
-digital_state_output=[]
-for item in output_port:
-    digital_state_output.append("Digital_State_t *_op_"+item.split(':')[0]+", *_op_"+item.split(':')[0]+"_old;")
-
-
-var_section='''
-    // Declaring components of Client
-    FILE *log_client = NULL;
-    log_client=fopen("client.log","a");
-    int socket_fd, bytes_recieved;
-    char send_data[1024];
-    char recv_data[1024];
-    char *key_iter;
-    struct hostent *host;
-    struct sockaddr_in server_addr;
-    int sock_port = 5000+PARAM(instance_id);
-'''
-
-temp_input_var=[]
-for item in input_port:
-    temp_input_var.append("char temp_"+item.split(':')[0]+"[1024];")
-
-#Start of INIT function 
-init_start_function='''
-    if(INIT)
-    {
-        /* Allocate storage for output ports.And set the load for input ports */
-'''
-  
-cm_event_alloc=[]
-cm_count_output=0
-for item in output_port:
-   cm_event_alloc.append("cm_event_alloc("+str(cm_count_output)+","+item.split(':')[1]+"*sizeof(Digital_State_t));")
-   cm_count_output=cm_count_output+1
-
-load_in_port=[]
-for item in input_port:
-    load_in_port.append("for(Ii=0;Ii<PORT_SIZE("+item.split(':')[0]+");Ii++)\n\t\t{\n\t\t\tLOAD("+item.split(':')[0]+"[Ii])=PARAM(input_load); \n\t\t}")
-
-cm_count_ptr=0
-cm_event_get_ptr=[]
-for item in output_port:
-    cm_event_get_ptr.append("_op_"+item.split(':')[0]+" = _op_"+item.split(':')[0]+"_old = (Digital_State_t *) cm_event_get_ptr("+str(cm_count_ptr)+",0);")
-    cm_count_ptr=cm_count_ptr+1
-
-systime_info='''
-        /*Taking system time info for log */                                                                                                   
-        time_t systime;                                                                                                                        
-        systime = time(NULL);                                                                                                                  
-        printf(ctime(&systime));                                                                                                               
-        printf("Client-Initialising GHDL...\\n\\n");                                                                                              
-        fprintf(log_client,"Setup Client Server Connection at %s \\n",ctime(&systime));                                                         
-'''
-
-
-
-init_else='''
-        printf("Client-Inside else of INIT \\n");                                                                                               
-        fprintf(log_client,"Inside else of INIT \\n");                                                                                          
-        /*  retrieve storage for output ports. */
-'''
-
-els_evt_ptr=[]
-els_evt_count1=0
-els_evt_count2=0
-for item in output_port:
-    els_evt_ptr.append("_op_"+item.split(":")[0]+" = (Digital_State_t *) cm_event_get_ptr("+str(els_evt_count1)+","+str(els_evt_count2)+");")
-    els_evt_count2=els_evt_count2+1
-    els_evt_ptr.append("_op_"+item.split(":")[0]+"_old"+" = (Digital_State_t *) cm_event_get_ptr("+str(els_evt_count1)+","+str(els_evt_count2)+");")
-    els_evt_count1=els_evt_count1+1
-
-
-client_setup_ip='''
-        /* Client Setup IP Addr */
-        FILE *fptr; 
-        int ip_count = 0;
-        char* my_ip = malloc(16);
-
-        char ip_filename[40];
-        sprintf(ip_filename, "/tmp/NGHDL_COMMON_IP_%d.txt", getpid());
-
-        fptr = fopen(ip_filename, "r"); 
-        if (fptr) 
-        { 
-            char line[20];
-            while(fscanf(fptr, "%s", line) == 1) {
-                ip_count++;
+        function_open = (
+            '''void cm_''' + self.fname.split('.')[0] + '''(ARGS) \n{''')
+
+        digital_state_output = []
+        for item in self.output_port:
+            digital_state_output.append(
+                "Digital_State_t *_op_" + item.split(':')[0] +
+                ", *_op_" + item.split(':')[0] + "_old;"
+            )
+
+        var_section = '''
+            // Declaring components of Client
+            FILE *log_client = NULL;
+            log_client=fopen("client.log","a");
+            int socket_fd, bytes_recieved;
+            char send_data[1024];
+            char recv_data[1024];
+            char *key_iter;
+            struct hostent *host;
+            struct sockaddr_in server_addr;
+            int sock_port = 5000+PARAM(instance_id);
+        '''
+
+        temp_input_var = []
+        for item in self.input_port:
+            temp_input_var.append(
+                "char temp_" + item.split(':')[0] + "[1024];"
+            )
+
+        # Start of INIT function
+        init_start_function = '''
+            if(INIT)
+            {
+                /* Allocate storage for output ports ''' \
+                '''and set the load for input ports */
+        '''
+
+        cm_event_alloc = []
+        cm_count_output = 0
+        for item in self.output_port:
+            cm_event_alloc.append(
+                "cm_event_alloc(" +
+                str(cm_count_output) + "," + item.split(':')[1] +
+                "*sizeof(Digital_State_t));"
+            )
+            cm_count_output = cm_count_output + 1
+
+        load_in_port = []
+        for item in self.input_port:
+            load_in_port.append(
+                "for(Ii=0;Ii<PORT_SIZE(" + item.split(':')[0] +
+                ");Ii++)\n\t\t{\n\t\t\tLOAD(" + item.split(':')[0] +
+                "[Ii])=PARAM(input_load); \n\t\t}"
+            )
+
+        cm_count_ptr = 0
+        cm_event_get_ptr = []
+        for item in self.output_port:
+            cm_event_get_ptr.append(
+                "_op_" + item.split(':')[0] + " = _op_" +
+                item.split(':')[0] +
+                "_old = (Digital_State_t *) cm_event_get_ptr(" +
+                str(cm_count_ptr) + ",0);"
+            )
+
+            cm_count_ptr = cm_count_ptr + 1
+
+        systime_info = '''
+                /*Taking system time info for log */
+                time_t systime;
+                systime = time(NULL);
+                printf(ctime(&systime));
+                printf("Client-Initialising GHDL...\\n\\n");
+                fprintf(log_client,"Setup Client Server Connection at %s \\n"''' \
+                ''',ctime(&systime));
+        '''
+
+        els_evt_ptr = []
+        els_evt_count1 = 0
+        els_evt_count2 = 0
+        for item in self.output_port:
+            els_evt_ptr.append("_op_" + item.split(":")[0] +
+                               " = (Digital_State_t *) cm_event_get_ptr(" +
+                               str(els_evt_count1) + "," +
+                               str(els_evt_count2) + ");")
+            els_evt_count2 = els_evt_count2 + 1
+            els_evt_ptr.append("_op_" + item.split(":")[0] + "_old" +
+                               " = (Digital_State_t *) cm_event_get_ptr(" +
+                               str(els_evt_count1) + "," +
+                               str(els_evt_count2) + ");")
+            els_evt_count1 = els_evt_count1 + 1
+
+        client_setup_ip = '''
+                /* Client Setup IP Addr */
+                FILE *fptr;
+                int ip_count = 0;
+                char* my_ip = malloc(16);
+
+                char ip_filename[40];
+                sprintf(ip_filename, "/tmp/NGHDL_COMMON_IP_%d.txt", getpid());
+
+                fptr = fopen(ip_filename, "r");
+                if (fptr)
+                {
+                    char line[20];
+                    while(fscanf(fptr, "%s", line) == 1) {
+                        ip_count++;
+                    }
+
+                    fclose(fptr);
+                }
+
+                if (ip_count < 255) {
+                    sprintf(my_ip, "127.0.0.%d", ip_count+1);
+                } else {
+                    sprintf(my_ip, "127.0.%d.1", (ip_count+1)%256);
+                }
+
+                fptr = fopen(ip_filename, "a");
+                if (fptr)
+                {
+                    fprintf(fptr, "%s\\n", my_ip);
+                    fclose(fptr);
+                } else {
+                    perror("Client - cannot open Common_IP file ");
+                    exit(1);
+                }
+
+                STATIC_VAR(my_ip) = my_ip;
+        '''
+
+        client_fetch_ip = '''
+            /* Client Fetch IP Addr */
+
+            char* my_ip = STATIC_VAR(my_ip);
+
+            host = gethostbyname(my_ip);
+            fprintf(log_client,"Creating client socket \\n");
+        '''
+
+        create_socket = '''
+            //Creating socket for client
+            if ((socket_fd = socket(AF_INET, SOCK_STREAM, 0)) == -1)
+            {
+                perror("Client - Error while creating client Socket ");
+                fprintf(log_client,"Error while creating client socket \\n");
+                exit(1);
             }
 
-            fclose(fptr);
-        }
-     
-        if (ip_count < 255) {
-            sprintf(my_ip, "127.0.0.%d", ip_count+1);
-        } else {
-            sprintf(my_ip, "127.0.%d.1", (ip_count+1)%256);
-        }
-
-        fptr = fopen(ip_filename, "a");
-        if (fptr)
-        {
-            fprintf(fptr, "%s\\n", my_ip);   
-            fclose(fptr);
-        } else {
-            perror("Client - cannot open Common_IP file ");
-            exit(1);
-        }
-
-        STATIC_VAR(my_ip) = my_ip;        
-'''
-
-client_fetch_ip='''
-    /* Client Fetch IP Addr */ 
-        
-    char* my_ip = STATIC_VAR(my_ip);
-        
-    host = gethostbyname(my_ip);
-    fprintf(log_client,"Creating client socket \\n");
-'''
-
-create_socket='''
-    //Creating socket for client                                                                                      
-    if ((socket_fd = socket(AF_INET, SOCK_STREAM, 0)) == -1)
-    {
-        perror("Client-Error while creating client Socket ");
-        fprintf(log_client,"Error while creating client socket \\n");
-        exit(1);
-    }
-
-    printf("Client-Socket (Id : %d) created\\n", socket_fd);
-    fprintf(log_client,"Client-Client Socket created successfully \\n");
-    fprintf(log_client,"Client- Socket Id : %d \\n",socket_fd);
-
-    // memset(&server_addr, 0, sizeof(server_addr));
-    server_addr.sin_family = AF_INET;
-    server_addr.sin_port = htons(sock_port);
-    server_addr.sin_addr = *((struct in_addr *)host->h_addr);
-    bzero(&(server_addr.sin_zero),8);
-
-'''
-
-connect_server='''
-    fprintf(log_client,"Client-Connecting to server \\n");                                                                                  
-    
-    //Connecting to server
-    int try_limit=10;                                                                                                                      
-    while(try_limit>0)                                                                                                                     
-    {                                                                                                                                      
-        if (connect(socket_fd, (struct sockaddr*)&server_addr,sizeof(struct sockaddr)) == -1)                                              
-        {                                                                                                                                  
-            sleep(1);                                                                                                                      
-            try_limit--;                                                                                                                   
-            if(try_limit==0)                                                                                                               
-            {                                                                                                                              
-                fprintf(stderr,"Connect- Error:Tried to connect server on port , failed..giving up \\n");                                   
-                fprintf(log_client,"Connect- Error:Tried to connect server on port , failed..giving up \\n");                               
-                exit(1);                                                                                                                   
-            }                                                                                                                              
-        }                                                                                                                                
-        else                                                                                                                               
-        {                                                                                                                                  
-            printf("Client-Connected to server \\n");                                                                                       
-            fprintf(log_client,"Client-Connected to server \\n");                                                                           
-            break;                                                                                                                         
-        }                                                                                                                                  
-    } 
-
-'''
-
-#Assign bit value to every input
-assign_data_to_input=[]
-for item in input_port:
-    assign_data_to_input.append("\tfor(Ii=0;Ii<PORT_SIZE("+item.split(':')[0]+");Ii++)\n\
-\t{\n\t\tif( INPUT_STATE("+item.split(':')[0]+"[Ii])==ZERO )\n\
-\t\t{\n\t\t\ttemp_"+item.split(':')[0]+"[Ii]='0';\n\t\t}\n\
-\t\telse\n\t\t{\n\t\t\ttemp_"+item.split(':')[0]+"[Ii]='1';\n\
-\t\t}\n\t}\n\ttemp_"+item.split(':')[0]+"[Ii]='\\0';\n\n")
-
-
-snprintf_stmt=[]
-snprintf_count=0
-snprintf_stmt.append("\t//Sending and receiving data to-from server \n")
-snprintf_stmt.append('\tsnprintf(send_data,sizeof(send_data),"')
-for item in input_port:
-    snprintf_count=snprintf_count+1
-    snprintf_stmt.append(item.split(':')[0]+":%s")
-    if snprintf_count == len(input_port):
-        snprintf_stmt.append('",')
-        internal_count=0
-        for item1 in input_port:
-            if internal_count == len(input_port):
-                pass
-            else:    
-                snprintf_stmt.append("temp_"+item1.split(':')[0])
-                internal_count=internal_count+1
-                if internal_count == len(input_port):
-                    pass
-                else:
-                    snprintf_stmt.append(",")
-        snprintf_stmt.append(");")
-    else:
-        snprintf_stmt.append(",")
-
-
-send_data='''
-
-    if ( send(socket_fd,send_data,sizeof(send_data),0)==-1)                                                                            
-    {                                                                                                                                  
-        fprintf(stderr, "Client-Failure Sending Message \\n");                                                                           
-        close(socket_fd);                                                                                                              
-        exit(1);                                                                                                                       
-    }                                                                                                                                  
-    else                                                                                                                               
-    {                                                                                                                                  
-        printf("Client-Message sent: %s \\n",send_data);                                                                           
-        fprintf(log_client,"Socket Id : %d & Message sent : %s \\n",socket_fd,send_data);                                               
-    }
-
-'''
-
-recv_data='''
-
-    bytes_recieved=recv(socket_fd,recv_data,sizeof(recv_data),0);                                                                      
-    if ( bytes_recieved <= 0 )                                                                                                         
-    {                                                                                                                                  
-        perror("Client-Either Connection Closed or Error ");
-        exit(1);                                                                                                                       
-    }                                                                                                                                  
-    recv_data[bytes_recieved] = '\\0';                                                                                                
-            
-    printf("Client-Message Received -  %s\\n\\n",recv_data);                                                                   
-    fprintf(log_client,"Message Received From Server- %s\\n",recv_data);   
-
-'''
-
-#Scheduling output event
-
-sch_output_event=[]
-
-for item in output_port:
-    sch_output_event.append("\t/* Scheduling event and processing them */\n\
-\tif((key_iter=strstr(recv_data, "+'"'+item.split(':')[0]+':"'")) != NULL)\n\
-\t{\n\
-\t\twhile(*key_iter++ != ':');\n\
-\t\tfor(Ii=0;*key_iter != ';';Ii++,key_iter++)\n\
-\t\t{\n\
-\t\t\tfprintf(log_client,\"Client-Bit val is %c \\n\",*key_iter);\n\
-\t\t\tif(*key_iter=='0')\n\t\t\t{\n\
-\t\t\t\t_op_"+item.split(':')[0]+"[Ii]=ZERO;\n\t\t\t}\n\
-\t\t\telse if(*key_iter=='1')\n\t\t\t{\n\
-\t\t\t\t_op_"+item.split(':')[0]+"[Ii]=ONE;\n\
-\t\t\t}\n\t\t\telse\n\t\t\t{\n\
-\t\t\t\tfprintf(log_client,\"Unknow value return from server \\n\");\n\
-\t\t\t\tprintf(\"Client-Unknown value return \\n\");\n\t\t\t}\n\n\
-\t\t\tif(ANALYSIS == DC)\n\t\t\t{\n\
-\t\t\t\tOUTPUT_STATE("+item.split(':')[0]+"[Ii]) = _op_"+item.split(':')[0]+"[Ii];\n\
-\t\t\t}\n\t\t\telse if(_op_"+item.split(':')[0]+"[Ii] != _op_"+item.split(':')[0]+"_old[Ii])\n\
-\t\t\t{\n\t\t\t\tOUTPUT_STATE("+item.split(':')[0]+"[Ii]) = _op_"+item.split(':')[0]+"[Ii];\n\
-\t\t\t\tOUTPUT_DELAY("+item.split(':')[0]+"[Ii]) = ((_op_"+item.split(':')[0]+"[Ii] == ZERO) ? PARAM(fall_delay) : PARAM(rise_delay));\n\
-\t\t\t}\n\t\t\telse\n\t\t\t{\n\
-\t\t\t\tOUTPUT_CHANGED("+item.split(':')[0]+"[Ii]) = FALSE;\n\t\t\t}\n\
-\t\t\tOUTPUT_STRENGTH("+item.split(':')[0]+"[Ii]) = STRONG;\n\
-\t\t}\n\
-\t}\n")
-
-#Writing content in cfunc.mod file 
-cfunc.write(comment)
-cfunc.write(header)
-cfunc.write("\n")
-cfunc.write(function_open)
-cfunc.write("\n")
-
-#Adding digital state Variable
-for item in digital_state_output:
-    cfunc.write("\t"+item+"\n")
-    
-#Adding variable declaration section
-cfunc.write(var_section)
-for item in temp_input_var:
-    cfunc.write("\t"+item+"\n")
-cfunc.write("\n");
-
-#Adding INIT portion
-cfunc.write(init_start_function)
-for item in cm_event_alloc:
-    cfunc.write(2*"\t"+item)
-    cfunc.write("\n")
-
-cfunc.write(2*"\t"+"/* set the load for input ports. */")
-cfunc.write("\n")
-cfunc.write(2*"\t"+"int Ii;")
-cfunc.write("\n");
-
-for item in load_in_port:
-    cfunc.write(2*"\t"+item)
-    cfunc.write("\n")
-cfunc.write("\n")
-cfunc.write(2*"\t"+"/*Retrieve Storage for output*/")
-cfunc.write("\n")
-for item in cm_event_get_ptr:
-    cfunc.write(2*"\t"+item)
-    cfunc.write("\n")
-cfunc.write(systime_info)
-cfunc.write("\n")
-cfunc.write(client_setup_ip)
-cfunc.write("\n")
-cfunc.write("\t\tchar command[1024];\n")
-cfunc.write('\t\tsnprintf(command,1024,"'+home+'/ngspice-nghdl/src/xspice/icm/ghdl/'+fname.split('.')[0]+'/DUTghdl/start_server.sh %d %s &",sock_port, my_ip);')
-cfunc.write('\n\t\tsystem(command);')
-cfunc.write("\n\t}")
-cfunc.write("\n")
-cfunc.write("\telse\n\t{\n")
-
-for item in els_evt_ptr:
-    cfunc.write(2*"\t"+item)
-    cfunc.write("\n")
-cfunc.write("\t}")
-cfunc.write("\n\n")
-
-cfunc.write(client_fetch_ip)
-cfunc.write(create_socket)
-cfunc.write(connect_server)
-
-cfunc.write("\t//Formating data for sending it to client\n")
-cfunc.write("\tint Ii;\n\n")
-
-for item in assign_data_to_input:
-    cfunc.write(item)
-
-for item in snprintf_stmt:
-    cfunc.write(item)
-
-cfunc.write(send_data)
-cfunc.write(recv_data)
-
-for item in sch_output_event:
-    cfunc.write(item)
-
-#Close socket fd
-cfunc.write("\tclose(socket_fd);\n\n")
-
-#close log_client file
-cfunc.write("\tfclose(log_client);")
-
-#Close cm_ function
-cfunc.write("\n}")
-cfunc.close()
-
-################Creating ifspec.ifs file########################################
-print "Starting with ifspec.ifs file"
-ifspec=open('ifspec.ifs','w')
-
-print "Gathering Al the content for ifspec file"
-
-ifspec_comment='''
-/*
-SUMMARY: This file is auto generated and it contains the interface specification for the                                                                            
-code model. */\n  
-'''
-
-name_table='NAME_TABLE:\n\
-C_Function_Name: cm_'+fname.split('.')[0]+'\n\
-Spice_Model_Name: '+fname.split('.')[0]+'\n\
-Description: "Model generated from ghdl code '+fname+'" \n'
-
-#Input and Output Port Table
-in_port_table=[]
-out_port_table=[]
-
-for item in input_port:
-    port_table = 'PORT_TABLE:\n'
-    port_name = 'Port_Name:\t'+item.split(':')[0]+'\n'
-    description = 'Description:\t"input port '+item.split(':')[0]+'"\n'
-    direction = 'Direction:\tin\n'
-    default_type = 'Default_Type:\td\n'
-    allowed_type = 'Allowed_Types:\t[d]\n'
-    vector = 'Vector:\tyes\n'
-    vector_bounds = 'Vector_Bounds:\t['+item.split(':')[1]+' '+item.split(":")[1]+']\n'
-    null_allowed = 'Null_Allowed:\tno\n'
-    #Insert detail in the list
-    in_port_table.append(port_table+port_name+description+direction+default_type+allowed_type+vector+vector_bounds+null_allowed)
-
-
-for item in output_port:
-    port_table = 'PORT_TABLE:\n'
-    port_name = 'Port_Name:\t'+item.split(':')[0]+'\n'
-    description = 'Description:\t"output port '+item.split(':')[0]+'"\n'
-    direction = 'Direction:\tout\n'
-    default_type = 'Default_Type:\td\n'
-    allowed_type = 'Allowed_Types:\t[d]\n'
-    vector = 'Vector:\tyes\n'
-    vector_bounds = 'Vector_Bounds:\t['+item.split(':')[1]+' '+item.split(":")[1]+']\n'
-    null_allowed = 'Null_Allowed:\tno\n'
-    #Insert detail in the list
-    in_port_table.append(port_table+port_name+description+direction+default_type+allowed_type+vector+vector_bounds+null_allowed)
-
-parameter_table='''
-
-PARAMETER_TABLE:
-Parameter_Name:     instance_id                  input_load
-Description:        "instance_id"                "input load value (F)"
-Data_Type:          real                         real
-Default_Value:      0                  			 1.0e-12
-Limits:             -                  	         -
-Vector:              no                          no
-Vector_Bounds:       -                           -
-Null_Allowed:       yes                          yes
-
-PARAMETER_TABLE:                                                                                                                               
-Parameter_Name:     rise_delay                  fall_delay
-Description:        "rise delay"                "fall delay"
-Data_Type:          real                        real
-Default_Value:      1.0e-9                      1.0e-9
-Limits:             [1e-12 -]                   [1e-12 -]
-Vector:              no                          no
-Vector_Bounds:       -                           -
-Null_Allowed:       yes                         yes
-
-'''
-
-static_table='''
-
-STATIC_VAR_TABLE:
-
-Static_Var_Name:    my_ip
-Data_Type:          pointer
-Description:        "connect to ghdlserver through this ip"
-
-'''
-
-
-#Writing all the content in ifspec file
-ifspec.write(ifspec_comment)
-ifspec.write(name_table+"\n\n")
-
-for item in in_port_table:
-    ifspec.write(item+"\n")
-
-ifspec.write("\n")
-
-for item in out_port_table:
-    ifspec.write(item+"\n")
-
-ifspec.write("\n")
-ifspec.write(parameter_table)
-ifspec.write("\n")
-ifspec.write(static_table)
-ifspec.close()
-
-
-########Creating testbench file ################################################
-print "Starting with testbench file"
-
-testbench=open(fname.split('.')[0]+'_tb.vhdl','w')
-print fname.split('.')[0] + '_tb.vhdl'
-#comment
-comment_vhdl="--------------------------------------------------------------------------------\n"
-comment_vhdl+="--This testbench has been created by Ambikeshwar Srivastava, Rahul Paknikar \n"
-comment_vhdl+="--------------------------- FOSSEE, IIT Bombay ---------------------------------\n"
-comment_vhdl+="--------------------------------------------------------------------------------\n"
-
-#Adding header, entity and architecture statement
-tb_header='''
-library ieee;                                                                                                                                   
-use ieee.std_logic_1164.all;                                                                                                                    
-use ieee.numeric_std.all;                                                                                                                       
-library work;                                                                                                                                   
-use work.Vhpi_Foreign.all;                                                                                                                      
-use work.Utility_Package.all;
-use work.sock_pkg.all;
-
-
-'''
-
-tb_entity="entity "+fname.split('.')[0]+"_tb is\nend entity;\n\n"
-
-arch="architecture "+fname.split('.')[0]+"_tb_beh of "+fname.split('.')[0]+"_tb is\n"
-
-#Adding components
-
-components=[]
-components.append("\tcomponent "+fname.split('.')[0]+" is\n\t\tport(\n\t\t\t\t")
-
-port_vector_count = 0
-
-for item in input_port:
-    if port_vector_info[port_vector_count]:
-        components.append(item.split(':')[0]+": in std_logic_vector("+str(int(item.split(':')[1])-int(1))+" downto 0);\n\t\t\t\t")
-    else:
-        components.append(item.split(':')[0]+": in std_logic;\n\t\t\t\t")
-
-    port_vector_count += 1
-        #if item.split(":")[1] != '1':
-        #    components.append(item.split(':')[0]+": in std_logic_vector("+str(int(item.split(':')[1])-int(1))+" downto 0);\n\t\t\t\t")
-        #else:
-        #    components.append(item.split(':')[0]+": in std_logic_vector("+str(int(item.split(':')[1])-int(1))+" downto 0);\n\t\t\t\t")
-
-for item in output_port[:-1]:
-    if port_vector_info[port_vector_count]:
-        components.append(item.split(':')[0]+": out std_logic_vector("+str(int(item.split(':')[1])-int(1))+" downto 0);\n\t\t\t\t")
-    else:
-        components.append(item.split(':')[0]+": out std_logic;\n\t\t\t\t")   
-
-    port_vector_count += 1
-
-if port_vector_info[port_vector_count]:
-    components.append(output_port[-1].split(':')[0]+": out std_logic_vector("+str(int(output_port[-1].split(':')[1])-int(1))+" downto 0)\n\t\t\t\t")
-else:
-    components.append(output_port[-1].split(':')[0]+": out std_logic\n\t\t\t\t")
-    #if item.split(":")[1] != '1':                                                                                                               
-    #    components.append(item.split(':')[0]+": out std_logic_vector("+str(int(item.split(':')[1])-int(1))+" downto 0)\n\t\t\t\t")                
-    #else:                                                                                                                                       
-    #    components.append(item.split(':')[0]+": out std_logic_vector("+str(int(item.split(':')[1])-int(1))+" downto 0)\n\t\t\t\t")
-
-components.append(");\n")
-components.append("\tend component;\n\n")
+            printf("Client-Socket (Id : %d) created\\n", socket_fd);
+            fprintf(log_client,"Client-Client Socket created ''' \
+            '''successfully \\n");
+            fprintf(log_client,"Client- Socket Id : %d \\n",socket_fd);
 
-#Adding signals
-signals=[]
-signals.append("\tsignal clk_s : std_logic := '0';\n")
-
-port_vector_count = 0
-
-for item in input_port:
-    if port_vector_info[port_vector_count]:
-        signals.append("\tsignal "+item.split(':')[0]+": std_logic_vector("+str(int(item.split(':')[1])-int(1))+" downto 0);\n")
-    else:
-        signals.append("\tsignal "+item.split(':')[0]+": std_logic;\n")
-    port_vector_count += 1
-
-    #if item.split(":")[1] != '1':                                                                                                               
-    #    signals.append("\tsignal "+item.split(':')[0]+": std_logic_vector("+str(int(item.split(':')[1])-int(1))+" downto 0);\n")                
-    #else:                                                                                                                                       
-    #    signals.append("\tsignal "+item.split(':')[0]+": std_logic_vector("+str(int(item.split(':')[1])-int(1))+" downto 0);\n")
-
-
-for item in output_port:
-    if port_vector_info[port_vector_count]:
-        signals.append("\tsignal "+item.split(':')[0]+": std_logic_vector("+str(int(item.split(':')[1])-int(1))+" downto 0);\n")
-    else:
-        signals.append("\tsignal "+item.split(':')[0]+": std_logic;\n")    
-    port_vector_count += 1
-    #if item.split(":")[1] != '1':                                                                                                               
-    #    signals.append("\tsignal "+item.split(':')[0]+": std_logic_vector("+str(int(item.split(':')[1])-int(1))+" downto 0);\n")                
-    #else:                                                                                                                                       
-    #    signals.append("\tsignal "+item.split(':')[0]+": std_logic_vector("+str(int(item.split(':')[1])-int(1))+" downto 0);\n")
+            // memset(&server_addr, 0, sizeof(server_addr));
+            server_addr.sin_family = AF_INET;
+            server_addr.sin_port = htons(sock_port);
+            server_addr.sin_addr = *((struct in_addr *)host->h_addr);
+            bzero(&(server_addr.sin_zero),8);
 
-#Adding mapping part 
-map=[]
-map.append("\tu1 : "+fname.split('.')[0]+" port map(\n")
+        '''
 
-for item in input_port:
-    map.append("\t\t\t\t"+item.split(':')[0]+" => "+item.split(':')[0]+",\n")
-
-for item in output_port:
-    if output_port.index(item) == len(output_port) - 1:
-        map.append("\t\t\t\t"+item.split(':')[0]+" => "+item.split(':')[0]+"\n")
-    else:
-        map.append("\t\t\t\t"+item.split(':')[0]+" => "+item.split(':')[0]+",\n")
-map.append("\t\t\t);")
+        connect_server = '''
+            fprintf(log_client,"Client-Connecting to server \\n");
+
+            //Connecting to server
+            int try_limit=10;
+            while(try_limit>0)
+            {
+                if (connect(socket_fd, (struct sockaddr*)&server_addr,''' \
+                '''sizeof(struct sockaddr)) == -1)
+                {
+                    sleep(1);
+                    try_limit--;
+                    if(try_limit==0)
+                    {
+                        fprintf(stderr,"Connect- Error:Tried to connect server on port,''' \
+                        '''failed...giving up \\n");
+                        fprintf(log_client,"Connect- Error:Tried to connect server on ''' \
+                        '''port, failed...giving up \\n");
+                        exit(1);
+                    }
+                }
+                else
+                {
+                    printf("Client-Connected to server \\n");
+                    fprintf(log_client,"Client-Connected to server \\n");
+                    break;
+                }
+            }
+        '''
 
+        # Assign bit value to every input
+        assign_data_to_input = []
+        for item in self.input_port:
+            assign_data_to_input.append("\tfor(Ii=0;Ii<PORT_SIZE(" +
+                                        item.split(':')[0] + ");Ii++)\n\
+        \t{\n\t\tif( INPUT_STATE(" + item.split(':')[0] + "[Ii])==ZERO )\n\
+        \t\t{\n\t\t\ttemp_" + item.split(':')[0] + "[Ii]='0';\n\t\t}\n\
+        \t\telse\n\t\t{\n\t\t\ttemp_" + item.split(':')[0] + "[Ii]='1';\n\
+        \t\t}\n\t}\n\ttemp_" + item.split(':')[0] + "[Ii]='\\0';\n\n")
+
+        snprintf_stmt = []
+        snprintf_count = 0
+        snprintf_stmt.append(
+            "\t//Sending and receiving data to-from server \n"
+        )
+        snprintf_stmt.append('\tsnprintf(send_data,sizeof(send_data),"')
+        for item in self.input_port:
+            snprintf_count = snprintf_count + 1
+            snprintf_stmt.append(item.split(':')[0] + ":%s")
+            if snprintf_count == len(self.input_port):
+                snprintf_stmt.append('", ')
+                internal_count = 0
+                for item1 in self.input_port:
+                    if internal_count == len(self.input_port):
+                        pass
+                    else:
+                        snprintf_stmt.append("temp_" + item1.split(':')[0])
+                        internal_count = internal_count + 1
+                        if internal_count == len(self.input_port):
+                            pass
+                        else:
+                            snprintf_stmt.append(",")
+                snprintf_stmt.append(");")
+            else:
+                snprintf_stmt.append(",")
+
+        send_data = '''
+
+            if ( send(socket_fd,send_data,sizeof(send_data),0)==-1)
+            {
+                fprintf(stderr, "Client-Failure Sending Message \\n");
+                close(socket_fd);
+                exit(1);
+            }
+            else
+            {
+                printf("Client-Message sent: %s \\n",send_data);
+                fprintf(log_client,"Socket Id : %d & Message sent : %s \\n"''' \
+                ''',socket_fd,send_data);
+            }
+
+        '''
+
+        recv_data = '''
+
+            bytes_recieved=recv(socket_fd,recv_data,sizeof(recv_data),0);
+            if ( bytes_recieved <= 0 )
+            {
+                perror("Client-Either Connection Closed or Error ");
+                exit(1);
+            }
+            recv_data[bytes_recieved] = '\\0';
+
+            printf("Client-Message Received -  %s\\n\\n",recv_data);
+            fprintf(log_client,"Message Received From Server-''' \
+            '''%s\\n",recv_data);
+
+        '''
+
+        # Scheduling output event
+        sch_output_event = []
+
+        for item in self.output_port:
+            sch_output_event.append(
+                 "\t/* Scheduling event and processing them */\n\
+        \tif((key_iter=strstr(recv_data, " + '"' + item.split(':')[0] + ':"'")) != NULL)\n\
+        \t{\n\
+        \t\twhile(*key_iter++ != ':');\n\
+        \t\tfor(Ii=0;*key_iter != ';';Ii++,key_iter++)\n\
+        \t\t{\n\
+        \t\t\tfprintf(log_client,\"Client-Bit val is %c \\n\",*key_iter);\n\
+        \t\t\tif(*key_iter=='0')\n\t\t\t{\n\
+        \t\t\t\t_op_" + item.split(':')[0] + "[Ii]=ZERO;\n\t\t\t}\n\
+        \t\t\telse if(*key_iter=='1')\n\t\t\t{\n\
+        \t\t\t\t_op_" + item.split(':')[0] + "[Ii]=ONE;\n\
+        \t\t\t}\n\t\t\telse\n\t\t\t{\n\
+        \t\t\t\tfprintf(log_client,\"Unknow value return from server \\n\");\n\
+        \t\t\t\tprintf(\"Client-Unknown value return \\n\");\n\t\t\t}\n\n\
+        \t\t\tif(ANALYSIS == DC)\n\t\t\t{\n\
+        \t\t\t\tOUTPUT_STATE(" + item.split(':')[0] + "[Ii]) = _op_" + item.split(':')[0] + "[Ii];\n\
+        \t\t\t}\n\t\t\telse if(_op_" + item.split(':')[0] + "[Ii] != _op_" + item.split(':')[0] + "_old[Ii])\n\
+        \t\t\t{\n\t\t\t\tOUTPUT_STATE(" + item.split(':')[0] + "[Ii]) = _op_" + item.split(':')[0] + "[Ii];\n\
+        \t\t\t\tOUTPUT_DELAY(" + item.split(':')[0] + "[Ii]) = ((_op_" + item.split(':')[0] + "[Ii] == ZERO) ? PARAM(fall_delay) : PARAM(rise_delay));\n\
+        \t\t\t}\n\t\t\telse\n\t\t\t{\n\
+        \t\t\t\tOUTPUT_CHANGED(" + item.split(':')[0] + "[Ii]) = FALSE;\n\t\t\t}\n\
+        \t\t\tOUTPUT_STRENGTH(" + item.split(':')[0] + "[Ii]) = STRONG;\n\
+        \t\t}\n\
+        \t}\n")
+
+        # Writing content in cfunc.mod file
+        cfunc.write(comment)
+        cfunc.write(header)
+        cfunc.write("\n")
+        cfunc.write(function_open)
+        cfunc.write("\n")
+
+        # Adding digital state Variable
+        for item in digital_state_output:
+            cfunc.write("\t" + item + "\n")
+
+        # Adding variable declaration section
+        cfunc.write(var_section)
+        for item in temp_input_var:
+            cfunc.write("\t" + item + "\n")
+        cfunc.write("\n")
+
+        # Adding INIT portion
+        cfunc.write(init_start_function)
+        for item in cm_event_alloc:
+            cfunc.write(2 * "\t" + item)
+            cfunc.write("\n")
+
+        cfunc.write(2 * "\t" + "/* set the load for input ports. */")
+        cfunc.write("\n")
+        cfunc.write(2 * "\t" + "int Ii;")
+        cfunc.write("\n")
+
+        for item in load_in_port:
+            cfunc.write(2 * "\t" + item)
+            cfunc.write("\n")
+        cfunc.write("\n")
+        cfunc.write(2 * "\t" + "/*Retrieve Storage for output*/")
+        cfunc.write("\n")
+        for item in cm_event_get_ptr:
+            cfunc.write(2 * "\t" + item)
+            cfunc.write("\n")
+        cfunc.write(systime_info)
+        cfunc.write("\n")
+        cfunc.write(client_setup_ip)
+        cfunc.write("\n")
+        cfunc.write("\t\tchar command[1024];\n")
+        cfunc.write(
+            '\t\tsnprintf(command,1024,"' + self.home +
+            '/ngspice-nghdl/src/xspice/icm/ghdl/' +
+            self.fname.split('.')[0] +
+            '/DUTghdl/start_server.sh %d %s &",sock_port,my_ip);'
+        )
+        cfunc.write('\n\t\tsystem(command);')
+        cfunc.write("\n\t}")
+        cfunc.write("\n")
+        cfunc.write("\telse\n\t{\n")
+
+        for item in els_evt_ptr:
+            cfunc.write(2 * "\t" + item)
+            cfunc.write("\n")
+        cfunc.write("\t}")
+        cfunc.write("\n\n")
+
+        cfunc.write(client_fetch_ip)
+        cfunc.write(create_socket)
+        cfunc.write(connect_server)
+
+        cfunc.write("\t//Formating data for sending it to client\n")
+        cfunc.write("\tint Ii;\n\n")
+
+        for item in assign_data_to_input:
+            cfunc.write(item)
+
+        for item in snprintf_stmt:
+            cfunc.write(item)
+
+        cfunc.write(send_data)
+        cfunc.write(recv_data)
+
+        for item in sch_output_event:
+            cfunc.write(item)
+
+        # Close socket fd
+        cfunc.write("\tclose(socket_fd);\n\n")
+
+        # close log_client file
+        cfunc.write("\tfclose(log_client);")
+
+        # Close cm_ function
+        cfunc.write("\n}")
+        cfunc.close()
+
+    def createIfSpecFile(self):
+
+        # ################### Creating ifspec.ifs file #################### #
+
+        print("Starting with ifspec.ifs file")
+        ifspec = open('ifspec.ifs', 'w')
+
+        print("Gathering Al the content for ifspec file")
+
+        ifspec_comment = '''
+        /*
+        SUMMARY: This file is auto generated and it contains the interface
+         specification for the code model. */\n
+        '''
+
+        name_table = 'NAME_TABLE:\n\
+        C_Function_Name: cm_' + self.fname.split('.')[0] + '\n\
+        Spice_Model_Name: ' + self.fname.split('.')[0] + '\n\
+        Description: "Model generated from ghdl code ' + self.fname + '" \n'
+
+        # Input and Output Port Table
+        in_port_table = []
+        out_port_table = []
+
+        for item in self.input_port:
+            port_table = 'PORT_TABLE:\n'
+            port_name = 'Port_Name:\t' + item.split(':')[0] + '\n'
+            description = (
+                'Description:\t"input port ' + item.split(':')[0] + '"\n'
+            )
+            direction = 'Direction:\tin\n'
+            default_type = 'Default_Type:\td\n'
+            allowed_type = 'Allowed_Types:\t[d]\n'
+            vector = 'Vector:\tyes\n'
+            vector_bounds = (
+                'Vector_Bounds:\t[' + item.split(':')[1] +
+                ' ' + item.split(":")[1] + ']\n'
+            )
+            null_allowed = 'Null_Allowed:\tno\n'
+
+            # Insert detail in the list
+            in_port_table.append(
+                port_table + port_name + description +
+                direction + default_type + allowed_type +
+                vector + vector_bounds + null_allowed
+            )
+
+        for item in self.output_port:
+            port_table = 'PORT_TABLE:\n'
+            port_name = 'Port_Name:\t' + item.split(':')[0] + '\n'
+            description = (
+                'Description:\t"output port ' + item.split(':')[0] + '"\n'
+            )
+            direction = 'Direction:\tout\n'
+            default_type = 'Default_Type:\td\n'
+            allowed_type = 'Allowed_Types:\t[d]\n'
+            vector = 'Vector:\tyes\n'
+            vector_bounds = (
+                'Vector_Bounds:\t[' + item.split(':')[1] +
+                ' ' + item.split(":")[1] + ']\n'
+            )
+            null_allowed = 'Null_Allowed:\tno\n'
+
+            # Insert detail in the list
+            in_port_table.append(
+                port_table + port_name + description +
+                direction + default_type + allowed_type +
+                vector + vector_bounds + null_allowed
+            )
+
+        parameter_table = '''
+
+        PARAMETER_TABLE:
+        Parameter_Name:     instance_id                  input_load
+        Description:        "instance_id"                "input load value (F)"
+        Data_Type:          real                         real
+        Default_Value:      0                            1.0e-12
+        Limits:             -                            -
+        Vector:              no                          no
+        Vector_Bounds:       -                           -
+        Null_Allowed:       yes                          yes
+
+        PARAMETER_TABLE:
+        Parameter_Name:     rise_delay                  fall_delay
+        Description:        "rise delay"                "fall delay"
+        Data_Type:          real                        real
+        Default_Value:      1.0e-9                      1.0e-9
+        Limits:             [1e-12 -]                   [1e-12 -]
+        Vector:              no                          no
+        Vector_Bounds:       -                           -
+        Null_Allowed:       yes                         yes
+
+        '''
+
+        static_table = '''
+
+        STATIC_VAR_TABLE:
 
-#testbench Clock
-tb_clk= "clk_s <= not clk_s after 5 us;\n\n"
-#Adding Process block for Vhpi
-process_Vhpi=[]
-process_Vhpi.append("\tprocess\n\t\tvariable sock_port : integer;\n\t\ttype string_ptr is access string;\n\t\tvariable sock_ip : string_ptr;\n\t\tbegin\n\t\tsock_port := sock_port_fun;\n\t\tsock_ip := new string'(sock_ip_fun);\n\t\tVhpi_Initialize(sock_port, Pack_String_To_Vhpi_String(sock_ip.all));\n\t\twait until clk_s = '1';\n\t\twhile true loop\n\t\t\twait until clk_s = '0';\n\t\t\tVhpi_Listen;\n\t\t\twait for 1 us;\n\t\t\tVhpi_Send;\n\t\tend loop;\n\t\twait;\n\tend process;\n\n")
-#Adding process block 
-process=[]
-process.append("\tprocess\n")
-process.append("\t\tvariable count : integer:=0;\n")
+        Static_Var_Name:    my_ip
+        Data_Type:          pointer
+        Description:        "connect to ghdlserver through this ip"
 
-for item in input_port:
-    process.append("\t\tvariable "+item.split(':')[0]+"_v : VhpiString;\n")
-
-for item in output_port:
-    process.append("\t\tvariable "+item.split(':')[0]+"_v : VhpiString;\n")
-
-process.append("\t\tvariable obj_ref : VhpiString;\n")
-process.append("\tbegin\n")
-process.append("\t\twhile true loop\n")
-process.append("\t\t\twait until clk_s = '0';\n\n")
-
-port_vector_count = 0
-
-for item in input_port:
-    process.append('\t\t\tobj_ref := Pack_String_To_Vhpi_String("'+item.split(':')[0]+'");\n')
-    process.append('\t\t\tVhpi_Get_Port_Value(obj_ref,'+item.split(':')[0]+'_v,'+item.split(':')[1]+');\n')
-    if port_vector_info[port_vector_count]:
-        process.append('\t\t\t'+item.split(':')[0]+' <= Unpack_String('+item.split(':')[0]+'_v,'+item.split(':')[1]+');\n')
-    else:
-        process.append('\t\t\t'+item.split(':')[0]+' <= To_Std_Logic('+item.split(':')[0]+'_v'+');\n')
-    port_vector_count += 1
-    process.append("\n")
-
-process.append('\t\t\twait for 1 us;\n')
-
-for item in output_port:
-    if port_vector_info[port_vector_count]:
-        process.append('\t\t\t'+item.split(':')[0]+'_v := Pack_String_To_Vhpi_String(Convert_SLV_To_String('+item.split(':')[0]+'));\n')
-    else:
-        process.append('\t\t\t'+item.split(':')[0]+'_v := Pack_String_To_Vhpi_String(To_String('+item.split(':')[0]+'));\n')
-    port_vector_count += 1
-
-    process.append('\t\t\tobj_ref := Pack_String_To_Vhpi_String("'+item.split(':')[0]+'");\n')
-    process.append('\t\t\tVhpi_Set_Port_Value(obj_ref,'+item.split(':')[0]+'_v,'+item.split(':')[1]+');\n')
-    process.append("\n")
-
-process.append('\t\t\treport "Iteration - "' + "& integer'image(count) severity note;\n")
-process.append('\t\t\tcount := count + 1;\n')
-process.append("\t\tend loop;\n")
-process.append("\tend process;\n\n")
-process.append("end architecture;")
-
-
-#Writing all the components to testbench file
-testbench.write(comment_vhdl)
-testbench.write(tb_header)
-testbench.write(tb_entity)
-testbench.write(arch)
-
-for item in components:
-    testbench.write(item)
-
-for item in signals:
-    testbench.write(item)
-
-testbench.write("\n\n")
-
-testbench.write("begin\n\n")
-
-for item in map:
-    testbench.write(item)
-
-testbench.write("\n\t"+tb_clk)
-
-for item in process_Vhpi:
-    testbench.write(item)
-
-for item in process:
-    testbench.write(item)
-
-
-testbench.close()
-
-##################################### Creating and writing components in start_server.sh ################################
-
-start_server = open('start_server.sh','w')
-
-start_server.write("#!/bin/bash\n\n")
-start_server.write("###This server run ghdl testebench for infinite time till ngspice send END signal to stop it\n\n")
-start_server.write("cd "+home+"/ngspice-nghdl/src/xspice/icm/ghdl/"+fname.split('.')[0]+"/DUTghdl/\n")
-start_server.write("chmod 775 sock_pkg_create.sh &&\n")
-start_server.write("./sock_pkg_create.sh $1 $2 &&\n")
-start_server.write("ghdl -a sock_pkg.vhdl &&\n")
-start_server.write("ghdl -a "+fname+" &&\n")
-start_server.write("ghdl -a "+fname.split('.')[0]+"_tb.vhdl  &&\n")
-start_server.write("ghdl -e -Wl,ghdlserver.o "+fname.split('.')[0]+"_tb &&\n")
-start_server.write("./"+fname.split('.')[0]+"_tb")
-
-start_server.close()
-
-##################################### Creating and writing in sock_pkg_create.sh ########################################
-
-sock_pkg_create = open('sock_pkg_create.sh','w')
-
-sock_pkg_create.write("#!/bin/bash\n\n")
-sock_pkg_create.write("##This file creates sock_pkg.vhdl file and sets the port and ip from parameters passed to it\n\n")
-sock_pkg_create.write("echo \"library ieee;\n")
-sock_pkg_create.write("package sock_pkg is\n")
-sock_pkg_create.write("\tfunction sock_port_fun return integer;\n")
-sock_pkg_create.write("\tfunction sock_ip_fun return string;\n")
-sock_pkg_create.write("end;\n\n")
-sock_pkg_create.write("package body sock_pkg is\n")
-sock_pkg_create.write("\tfunction sock_port_fun return integer is\n")
-sock_pkg_create.write("\t\tvariable sock_port : integer;\n")
-sock_pkg_create.write("\t\t\tbegin\n")
-sock_pkg_create.write("\t\t\t\tsock_port := $1;\n")
-sock_pkg_create.write("\t\t\t\treturn sock_port;\n")
-sock_pkg_create.write("\t\t\tend function;\n\n")
-sock_pkg_create.write("\tfunction sock_ip_fun return string is\n")
-sock_pkg_create.write("\t\ttype string_ptr is access string;\n")
-sock_pkg_create.write("\t\tvariable sock_ip : string_ptr;\n")
-sock_pkg_create.write("\t\t\tbegin\n")
-sock_pkg_create.write('\t\t\t\tsock_ip := new string\'(\\"$2\\");\n')
-sock_pkg_create.write("\t\t\t\treturn sock_ip.all;\n")
-sock_pkg_create.write("\t\t\tend function;\n\n")
-sock_pkg_create.write("\t\tend package body;\" > sock_pkg.vhdl")
\ No newline at end of file
+        '''
+
+        # Writing all the content in ifspec file
+        ifspec.write(ifspec_comment)
+        ifspec.write(name_table + "\n\n")
+
+        for item in in_port_table:
+            ifspec.write(item + "\n")
+
+        ifspec.write("\n")
+
+        for item in out_port_table:
+            ifspec.write(item + "\n")
+
+        ifspec.write("\n")
+        ifspec.write(parameter_table)
+        ifspec.write("\n")
+        ifspec.write(static_table)
+        ifspec.close()
+
+    def createTestbench(self):
+
+        # #################### Creating testbench file ##################### #
+
+        print("Starting with testbench file")
+
+        testbench = open(self.fname.split('.')[0] + '_tb.vhdl', 'w')
+        print(self.fname.split('.')[0] + '_tb.vhdl')
+
+        # comment
+        comment_vhdl = "------------------------------------------------------"
+        comment_vhdl += "--------------------------\n"
+        comment_vhdl += "--This testbench has been created by "
+        comment_vhdl += "Ambikeshwar Srivastava, Rahul Paknikar \n"
+        comment_vhdl += "--------------------------- FOSSEE, IIT Bombay ------"
+        comment_vhdl += "---------------------------\n"
+        comment_vhdl += "-----------------------------------------------------"
+        comment_vhdl += "---------------------------\n"
+
+        # Adding header, entity and architecture statement
+        tb_header = '''
+        library ieee;
+        use ieee.std_logic_1164.all;
+        use ieee.numeric_std.all;
+        library work;
+        use work.Vhpi_Foreign.all;
+        use work.Utility_Package.all;
+        use work.sock_pkg.all;
+
+        '''
+
+        tb_entity = ("entity " + self.fname.split('.')[0] +
+                     "_tb is\nend entity;\n\n")
+
+        arch = ("architecture " + self.fname.split('.')[0] + "_tb_beh of " +
+                self.fname.split('.')[0] + "_tb is\n")
+
+        # Adding components
+        components = []
+        components.append("\tcomponent " + self.fname.split('.')[0] +
+                          " is\n\t\tport(\n\t\t\t\t")
+
+        port_vector_count = 0
+
+        for item in self.input_port:
+            if self.port_vector_info[port_vector_count]:
+                components.append(
+                    item.split(':')[0] + ": in std_logic_vector(" +
+                    str(int(item.split(':')[1]) - int(1)) +
+                    " downto 0);\n\t\t\t\t"
+                )
+            else:
+                components.append(
+                    item.split(':')[0] + ": in std_logic;\n\t\t\t\t"
+                )
+
+            port_vector_count += 1
+            # if item.split(":")[1] != '1':
+            #     components.append(
+            #         item.split(':')[0] + ": in std_logic_vector(" +
+            #         str(int(item.split(':')[1])-int(1)) + " downto 0);" +
+            #         "\n\t\t\t\t"
+            #     )
+            # else:
+            #     components.append(
+            #         item.split(':')[0] + ": in std_logic_vector(" +
+            #         str(int(item.split(':')[1])-int(1)) + " downto 0);" +
+            #         "\n\t\t\t\t"
+            #     )
+        for item in self.output_port[:-1]:
+            if self.port_vector_info[port_vector_count]:
+                components.append(
+                    item.split(':')[0] + ": out std_logic_vector(" +
+                    str(int(item.split(':')[1]) - int(1)) +
+                    " downto 0);\n\t\t\t\t"
+                )
+            else:
+                components.append(
+                    item.split(':')[0] + ": out std_logic;\n\t\t\t\t"
+                )
+
+            port_vector_count += 1
+
+        if self.port_vector_info[port_vector_count]:
+            components.append(
+                self.output_port[-1].split(':')[0] +
+                ": out std_logic_vector(" +
+                str(int(self.output_port[-1].split(':')[1]) - int(1)) +
+                " downto 0)\n\t\t\t\t"
+            )
+        else:
+            components.append(self.output_port[-1].split(':')[0] +
+                              ": out std_logic\n\t\t\t\t")
+            # if item.split(":")[1] != '1':
+            #    components.append(item.split(':')[0]+":
+            # out std_logic_vector("
+            #   +str(int(item.split(':')[1])-int(1))+" downto 0)\n\t\t\t\t")
+            # else:
+            #    components.append(item.split(':')[0]+":
+            # out std_logic_vector("
+            #   +str(int(item.split(':')[1])-int(1))+" downto 0)\n\t\t\t\t")
+
+        components.append(");\n")
+        components.append("\tend component;\n\n")
+
+        # Adding signals
+        signals = []
+        signals.append("\tsignal clk_s : std_logic := '0';\n")
+
+        port_vector_count = 0
+
+        for item in self.input_port:
+            if self.port_vector_info[port_vector_count]:
+                signals.append(
+                    "\tsignal " + item.split(':')[0] + ": std_logic_vector(" +
+                    str(int(item.split(':')[1]) - int(1)) + " downto 0);\n"
+                )
+            else:
+                signals.append(
+                    "\tsignal " + item.split(':')[0] + ": std_logic;\n"
+                )
+            port_vector_count += 1
+
+            # if item.split(":")[1] != '1':
+            #    signals.append("\tsignal "+item.split(':')[0]+":
+            #                   std_logic_vector("+str(int(item.split(':')[1])-
+            #                   int(1))+" downto 0);\n")
+            # else:
+            #    signals.append("\tsignal "+item.split(':')[0]+":
+            #                   std_logic_vector("+str(int(item.split(':')[1])-
+            #                   int(1))+" downto 0);\n")
+
+        for item in self.output_port:
+            if self.port_vector_info[port_vector_count]:
+                signals.append(
+                    "\tsignal " + item.split(':')[0] + ": std_logic_vector(" +
+                    str(int(item.split(':')[1]) - int(1)) + " downto 0);\n"
+                )
+            else:
+                signals.append(
+                    "\tsignal " + item.split(':')[0] + ": std_logic;\n"
+                )
+
+            port_vector_count += 1
+            # if item.split(":")[1] != '1':
+            #     signals.append(
+            #         "\tsignal " + item.split(':')[0] + ":std_logic_vector(" +
+            #         str(int(item.split(':')[1]) - int(1)) + " downto 0);\n"
+            #     )
+            # else:
+            #     signals.append(
+            #         "\tsignal " + item.split(':')[0] + ":std_logic_vector(" +
+            #         str(int(item.split(':')[1]) - int(1)) + " downto 0);\n"
+            #     )
+
+        # Adding mapping part
+        map = []
+        map.append("\tu1 : " + self.fname.split('.')[0] + " port map(\n")
+
+        for item in self.input_port:
+            map.append("\t\t\t\t" + item.split(':')[0] +
+                       " => " + item.split(':')[0] + ",\n")
+
+        for item in self.output_port:
+            if self.output_port.index(item) == len(self.output_port) - 1:
+                map.append("\t\t\t\t" + item.split(':')[0] +
+                           " => " + item.split(':')[0] + "\n")
+            else:
+                map.append("\t\t\t\t" + item.split(':')[0] +
+                           " => " + item.split(':')[0] + ",\n")
+        map.append("\t\t\t);")
+
+        # Testbench Clock
+        tb_clk = "clk_s <= not clk_s after 5 us;\n\n"
+
+        # Adding Process block for Vhpi
+        process_Vhpi = []
+        process_Vhpi.append(
+            "process\n\t\tvariable sock_port : integer;" +
+            "\n\t\ttype string_ptr is access string;" +
+            "\n\t\tvariable sock_ip : string_ptr;" +
+            "\n\t\tbegin\n\t\tsock_port := sock_port_fun;" +
+            "\n\t\tsock_ip := new string'(sock_ip_fun);" +
+            "\n\t\tVhpi_Initialize(sock_port," +
+            "Pack_String_To_Vhpi_String(sock_ip.all));" +
+            "\n\t\twait until clk_s = '1';" +
+            "\n\t\twhile true loop\n\t\t\twait until clk_s = '0';" +
+            "\n\t\t\tVhpi_Listen;\n\t\t\twait for 1 us;\n\t\t\t" +
+            "Vhpi_Send;" +
+            "\n\t\tend loop;\n\t\twait;\n\tend process;\n\n"
+        )
+
+        # Adding process block
+        process = []
+        process.append("\tprocess\n")
+        process.append("\t\tvariable count : integer:=0;\n")
+
+        for item in self.input_port:
+            process.append(
+                "\t\tvariable " + item.split(':')[0] + "_v : VhpiString;\n"
+            )
+
+        for item in self.output_port:
+            process.append(
+                "\t\tvariable " + item.split(':')[0] + "_v : VhpiString;\n"
+            )
+
+        process.append("\t\tvariable obj_ref : VhpiString;\n")
+        process.append("\tbegin\n")
+        process.append("\t\twhile true loop\n")
+        process.append("\t\t\twait until clk_s = '0';\n\n")
+
+        port_vector_count = 0
+
+        for item in self.input_port:
+            process.append(
+                '\t\t\tobj_ref := Pack_String_To_Vhpi_String("' +
+                item.split(':')[0] + '");\n'
+            )
+            process.append(
+                '\t\t\tVhpi_Get_Port_Value(obj_ref,' +
+                item.split(':')[0] + '_v,' + item.split(':')[1] + ');\n'
+            )
+
+            if self.port_vector_info[port_vector_count]:
+                process.append(
+                    '\t\t\t' + item.split(':')[0] +
+                    ' <= Unpack_String(' + item.split(':')[0] + '_v,' +
+                    item.split(':')[1] + ');\n'
+                )
+            else:
+                process.append(
+                    '\t\t\t' + item.split(':')[0] +
+                    ' <= To_Std_Logic('+item.split(':')[0]+'_v'+');\n'
+                )
+
+            port_vector_count += 1
+            process.append("\n")
+
+        process.append('\t\t\twait for 1 us;\n')
+
+        for item in self.output_port:
+            if self.port_vector_info[port_vector_count]:
+                process.append(
+                    '\t\t\t' + item.split(':')[0] +
+                    '_v := Pack_String_To_Vhpi_String' +
+                    '(Convert_SLV_To_String(' +
+                    item.split(':')[0]+'));\n'
+                )
+            else:
+                process.append(
+                    '\t\t\t' + item.split(':')[0] +
+                    '_v := Pack_String_To_Vhpi_String(To_String(' +
+                    item.split(':')[0]+'));\n'
+                )
+
+            port_vector_count += 1
+
+            process.append(
+                '\t\t\tobj_ref := Pack_String_To_Vhpi_String("' +
+                item.split(':')[0]+'");\n'
+            )
+            process.append(
+                '\t\t\tVhpi_Set_Port_Value(obj_ref,' +
+                item.split(':')[0] + '_v,' + item.split(':')[1] + ');\n'
+            )
+            process.append("\n")
+
+        process.append(
+            '\t\t\treport "Iteration - "' +
+            "& integer'image(count) severity note;\n"
+        )
+        process.append('\t\t\tcount := count + 1;\n')
+        process.append("\t\tend loop;\n")
+        process.append("\tend process;\n\n")
+        process.append("end architecture;")
+
+        # Writing all the components to testbench file
+        testbench.write(comment_vhdl)
+        testbench.write(tb_header)
+        testbench.write(tb_entity)
+        testbench.write(arch)
+
+        for item in components:
+            testbench.write(item)
+
+        for item in signals:
+            testbench.write(item)
+
+        testbench.write("\n\n")
+
+        testbench.write("begin\n\n")
+
+        for item in map:
+            testbench.write(item)
+
+        testbench.write("\n\t"+tb_clk)
+
+        for item in process_Vhpi:
+            testbench.write(item)
+
+        for item in process:
+            testbench.write(item)
+
+        testbench.close()
+
+    def createServerScript(self):
+
+        # ####### Creating and writing components in start_server.sh ####### #
+
+        start_server = open('start_server.sh', 'w')
+
+        start_server.write("#!/bin/bash\n\n")
+        start_server.write(
+            "###This server run ghdl testebench for infinite time till " +
+            "ngspice send END signal to stop it\n\n"
+        )
+        start_server.write(
+            "cd "+self.home+"/ngspice-nghdl/src/xspice/icm/ghdl/" +
+            self.fname.split('.')[0]+"/DUTghdl/\n"
+        )
+        start_server.write("chmod 775 sock_pkg_create.sh &&\n")
+        start_server.write("./sock_pkg_create.sh $1 $2 &&\n")
+        start_server.write("ghdl -i *.vhdl &&\n")
+        start_server.write("ghdl -a *.vhdl &&\n")
+        start_server.write("ghdl -a "+self.fname+" &&\n")
+        start_server.write(
+            "ghdl -a "+self.fname.split('.')[0]+"_tb.vhdl  &&\n"
+        )
+        start_server.write(
+            "ghdl -e -Wl,ghdlserver.o " + self.fname.split('.')[0] + "_tb &&\n"
+        )
+        start_server.write("./"+self.fname.split('.')[0]+"_tb")
+
+        start_server.close()
+
+    def createSockScript(self):
+
+        # ########### Creating and writing in sock_pkg_create.sh ########### #
+
+        sock_pkg_create = open('sock_pkg_create.sh', 'w')
+
+        sock_pkg_create.write("#!/bin/bash\n\n")
+        sock_pkg_create.write(
+            "##This file creates sock_pkg.vhdl file and sets the port " +
+            "and ip from parameters passed to it\n\n"
+        )
+        sock_pkg_create.write("echo \"library ieee;\n")
+        sock_pkg_create.write("package sock_pkg is\n")
+        sock_pkg_create.write("\tfunction sock_port_fun return integer;\n")
+        sock_pkg_create.write("\tfunction sock_ip_fun return string;\n")
+        sock_pkg_create.write("end;\n\n")
+        sock_pkg_create.write("package body sock_pkg is\n")
+        sock_pkg_create.write("\tfunction sock_port_fun return integer is\n")
+        sock_pkg_create.write("\t\tvariable sock_port : integer;\n")
+        sock_pkg_create.write("\t\t\tbegin\n")
+        sock_pkg_create.write("\t\t\t\tsock_port := $1;\n")
+        sock_pkg_create.write("\t\t\t\treturn sock_port;\n")
+        sock_pkg_create.write("\t\t\tend function;\n\n")
+        sock_pkg_create.write("\tfunction sock_ip_fun return string is\n")
+        sock_pkg_create.write("\t\ttype string_ptr is access string;\n")
+        sock_pkg_create.write("\t\tvariable sock_ip : string_ptr;\n")
+        sock_pkg_create.write("\t\t\tbegin\n")
+        sock_pkg_create.write('\t\t\t\tsock_ip := new string\'(\\"$2\\");\n')
+        sock_pkg_create.write("\t\t\t\treturn sock_ip.all;\n")
+        sock_pkg_create.write("\t\t\tend function;\n\n")
+        sock_pkg_create.write("\t\tend package body;\" > sock_pkg.vhdl")