131 lines
3.6 KiB
C++
131 lines
3.6 KiB
C++
#include <assert.h>
|
|
#include "scriptstdstring.h"
|
|
#include "../scriptarray/scriptarray.h"
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
|
|
using namespace std;
|
|
|
|
BEGIN_AS_NAMESPACE
|
|
|
|
// This function takes an input string and splits it into parts by looking
|
|
// for a specified delimiter. Example:
|
|
//
|
|
// string str = "A|B||D";
|
|
// array<string>@ array = str.split("|");
|
|
//
|
|
// The resulting array has the following elements:
|
|
//
|
|
// {"A", "B", "", "D"}
|
|
//
|
|
// AngelScript signature:
|
|
// array<string>@ string::split(const string &in delim) const
|
|
static CScriptArray *StringSplit(const string &delim, const string &str)
|
|
{
|
|
// Obtain a pointer to the engine
|
|
asIScriptContext *ctx = asGetActiveContext();
|
|
asIScriptEngine *engine = ctx->GetEngine();
|
|
|
|
// TODO: This should only be done once
|
|
// TODO: This assumes that CScriptArray was already registered
|
|
asITypeInfo *arrayType = engine->GetTypeInfoByDecl("array<string>");
|
|
|
|
// Create the array object
|
|
CScriptArray *array = CScriptArray::Create(arrayType);
|
|
|
|
// Find the existence of the delimiter in the input string
|
|
int pos = 0, prev = 0, count = 0;
|
|
while( (pos = (int)str.find(delim, prev)) != (int)string::npos )
|
|
{
|
|
// Add the part to the array
|
|
array->Resize(array->GetSize()+1);
|
|
((string*)array->At(count))->assign(&str[prev], pos-prev);
|
|
|
|
// Find the next part
|
|
count++;
|
|
prev = pos + (int)delim.length();
|
|
}
|
|
|
|
// Add the remaining part
|
|
array->Resize(array->GetSize()+1);
|
|
((string*)array->At(count))->assign(&str[prev]);
|
|
|
|
return array;
|
|
}
|
|
|
|
static void StringSplit_Generic(asIScriptGeneric *gen)
|
|
{
|
|
// Get the arguments
|
|
string *str = (string*)gen->GetObject();
|
|
string *delim = *(string**)gen->GetAddressOfArg(0);
|
|
|
|
// Return the array by handle
|
|
*(CScriptArray**)gen->GetAddressOfReturnLocation() = StringSplit(*delim, *str);
|
|
}
|
|
|
|
|
|
|
|
// This function takes as input an array of string handles as well as a
|
|
// delimiter and concatenates the array elements into one delimited string.
|
|
// Example:
|
|
//
|
|
// array<string> array = {"A", "B", "", "D"};
|
|
// string str = join(array, "|");
|
|
//
|
|
// The resulting string is:
|
|
//
|
|
// "A|B||D"
|
|
//
|
|
// AngelScript signature:
|
|
// string join(const array<string> &in array, const string &in delim)
|
|
static string StringJoin(const CScriptArray &array, const string &delim)
|
|
{
|
|
// Create the new string
|
|
string str = "";
|
|
if( array.GetSize() )
|
|
{
|
|
int n;
|
|
for( n = 0; n < (int)array.GetSize() - 1; n++ )
|
|
{
|
|
str += *(string*)array.At(n);
|
|
str += delim;
|
|
}
|
|
|
|
// Add the last part
|
|
str += *(string*)array.At(n);
|
|
}
|
|
|
|
return str;
|
|
}
|
|
|
|
static void StringJoin_Generic(asIScriptGeneric *gen)
|
|
{
|
|
// Get the arguments
|
|
CScriptArray *array = *(CScriptArray**)gen->GetAddressOfArg(0);
|
|
string *delim = *(string**)gen->GetAddressOfArg(1);
|
|
|
|
// Return the string
|
|
new(gen->GetAddressOfReturnLocation()) string(StringJoin(*array, *delim));
|
|
}
|
|
|
|
// This is where the utility functions are registered.
|
|
// The string type must have been registered first.
|
|
void RegisterStdStringUtils(asIScriptEngine *engine)
|
|
{
|
|
[[maybe_unused]]
|
|
int r;
|
|
|
|
if( strstr(asGetLibraryOptions(), "AS_MAX_PORTABILITY") )
|
|
{
|
|
r = engine->RegisterObjectMethod("string", "array<string>@ split(const string &in) const", asFUNCTION(StringSplit_Generic), asCALL_GENERIC); assert(r >= 0);
|
|
r = engine->RegisterGlobalFunction("string join(const array<string> &in, const string &in)", asFUNCTION(StringJoin_Generic), asCALL_GENERIC); assert(r >= 0);
|
|
}
|
|
else
|
|
{
|
|
r = engine->RegisterObjectMethod("string", "array<string>@ split(const string &in) const", asFUNCTION(StringSplit), asCALL_CDECL_OBJLAST); assert(r >= 0);
|
|
r = engine->RegisterGlobalFunction("string join(const array<string> &in, const string &in)", asFUNCTION(StringJoin), asCALL_CDECL); assert(r >= 0);
|
|
}
|
|
}
|
|
|
|
END_AS_NAMESPACE
|