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Nasal-Interpreter
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Delete nasal_hash.cpp

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Valk Richard Li 2019-09-28 18:29:59 +08:00 committed by GitHub
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commit c09f0407ba
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version0.4/nasal_hash.cpp
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@ -1,113 +0,0 @@
#ifndef __NASAL_HASH_CPP__
#define __NASAL_HASH_CPP__
#include "nasal_hash.h"
nasal_hash::nasal_hash()
{
head=new nasal_hash_unit;
head->name="";
head->hash_var.type=VAR_NONE;
head->hash_var.data=NULL;
head->next=NULL;
}
nasal_hash::~nasal_hash()
{
nasal_hash_unit *temp=head;
nasal_hash_unit *this_node=NULL;
while(temp->next)
{
this_node=temp;
temp=temp->next;
delete this_node;
}
delete temp;
}
nasal_hash& nasal_hash::operator=(const nasal_hash &p)
{
nasal_hash_unit *temp=head;
nasal_hash_unit *this_node=NULL;
if(head->next)
{
temp=temp->next;
head->next=NULL;
while(temp->next)
{
this_node=temp;
temp=temp->next;
delete this_node;
}
delete temp;
}
temp=head;
nasal_hash_unit *temp_p=p.head;
while(temp_p->next)
{
temp_p=temp_p->next;
temp->next=new nasal_hash_unit;
temp=temp->next;
temp->next=NULL;
temp->hash_var=temp_p->hash_var;
temp->name=temp_p->name;
}
return *this;
}
void nasal_hash::append(std::string& var_name,var& p)
{
nasal_hash_unit *temp=head;
while(temp->next)
temp=temp->next;
temp->next=new nasal_hash_unit;
temp=temp->next;
temp->next=NULL;
temp->hash_var=p;
temp->name=var_name;
return;
}
int nasal_hash::contains(std::string& var_name)
{
nasal_hash_unit *temp=head;
while(temp->next)
{
temp=temp->next;
if(temp->name==var_name)
return 1;
}
return 0;
}
int nasal_hash::delete_element(std::string& var_name)
{
nasal_hash_unit *temp=head;
nasal_hash_unit *last_node=NULL;
while(temp->next)
{
last_node=temp;
temp=temp->next;
if(temp->name==var_name)
{
last_node->next=temp->next;
delete temp;
return 1;
}
}
return 0;
}
nasal_list nasal_hash::keys()
{
var assist_var;
assist_var.type=VAR_STRING;
nasal_list temp_list;
nasal_hash_unit *temp=head;
while(temp->next)
{
temp=temp->next;
assist_var.data=new std::string;
*((std::string *)assist_var.data)=temp->name;
temp_list.append(assist_var);
}
return temp_list;
}
#endif