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This commit is contained in:
Valk Richard Li
2020-10-25 22:15:49 +08:00
parent 4e260767ae
commit ea99e073f7
4 changed files with 232 additions and 6 deletions
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nasal_builtin.h
+55 -6
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@@ -267,18 +267,27 @@ int nasal_runtime::builtin_split(int local_scope_addr)
std::string delimeter=nasal_vm.gc_get(delimeter_value_addr).get_string();
std::string source=nasal_vm.gc_get(string_value_addr).get_string();
int delimeter_len=delimeter.length();
if(delimeter_len<1)
{
std::cout<<">> [runtime] builtin_split: delimeter's length must be greater than 0.\n";
++error;
return -1;
}
int source_len=source.length();
int ret_addr=nasal_vm.gc_alloc();
nasal_vm.gc_get(ret_addr).set_type(vm_vector);
nasal_vector& ref_vec=nasal_vm.gc_get(ret_addr).get_vector();
std::string tmp="";
if(!delimeter_len)
{
for(int i=0;i<source_len;++i)
{
tmp+=source[i];
int str_addr=nasal_vm.gc_alloc();
nasal_vm.gc_get(str_addr).set_type(vm_string);
nasal_vm.gc_get(str_addr).set_string(tmp);
ref_vec.add_elem(str_addr);
tmp="";
}
return ret_addr;
}
for(int i=0;i<source_len;++i)
{
bool check_delimeter=false;
@@ -786,4 +795,44 @@ int nasal_runtime::builtin_type(int local_scope_addr)
}
return ret_addr;
}
int nasal_runtime::builtin_substr(int local_scope_addr)
{
int str_addr=in_builtin_find("str");
int begin_addr=in_builtin_find("begin");
int length_addr=in_builtin_find("length");
if(str_addr<0 || !in_builtin_check(str_addr,vm_string))
{
std::cout<<">> [runtime] builtin_substr: cannot find \"str\" or wrong type(must be string).\n";
++error;
return -1;
}
if(begin_addr<0 || !in_builtin_check(begin_addr,vm_number))
{
std::cout<<">> [runtime] builtin_substr: cannot find \"begin\" or wrong type(must be number).\n";
++error;
return -1;
}
if(length_addr<0 || !in_builtin_check(length_addr,vm_number))
{
std::cout<<">> [runtime] builtin_substr: cannot find \"length\" or wrong type(must be number).\n";
++error;
return -1;
}
std::string str=nasal_vm.gc_get(str_addr).get_string();
int begin=(int)nasal_vm.gc_get(begin_addr).get_number();
int len=(int)nasal_vm.gc_get(length_addr).get_number();
if(begin>=str.length() || begin+len>=str.length())
{
std::cout<<">> [runtime] builtin_substr: index out of range.\n";
++error;
return -1;
}
std::string tmp="";
for(int i=begin;i<begin+len;++i)
tmp+=str[i];
int ret_addr=nasal_vm.gc_alloc();
nasal_vm.gc_get(ret_addr).set_type(vm_string);
nasal_vm.gc_get(ret_addr).set_string(tmp);
return ret_addr;
}
#endif