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godot/core/variant_parser.cpp

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#include "variant_parser.h"
#include "io/resource_loader.h"
#include "os/keyboard.h"
CharType VariantParser::StreamFile::get_char() {
return f->get_8();
}
bool VariantParser::StreamFile::is_utf8() const {
return true;
}
bool VariantParser::StreamFile::is_eof() const {
return f->eof_reached();
}
/////////////////////////////////////////////////////////////////////////////////////////////////
const char * VariantParser::tk_name[TK_MAX] = {
"'{'",
"'}'",
"'['",
"']'",
"'('",
"')'",
"identifier",
"string",
"number",
"':'",
"','",
"'='",
"EOF",
"ERROR"
};
Error VariantParser::get_token(Stream *p_stream, Token& r_token, int &line, String &r_err_str) {
while (true) {
CharType cchar;
if (p_stream->saved) {
cchar=p_stream->saved;
p_stream->saved=0;
} else {
cchar=p_stream->get_char();
if (p_stream->is_eof()) {
r_token.type=TK_EOF;
return OK;
}
}
switch(cchar) {
case '\n': {
line++;
break;
};
case 0: {
r_token.type=TK_EOF;
return OK;
} break;
case '{': {
r_token.type=TK_CURLY_BRACKET_OPEN;
return OK;
};
case '}': {
r_token.type=TK_CURLY_BRACKET_CLOSE;
return OK;
};
case '[': {
r_token.type=TK_BRACKET_OPEN;
return OK;
};
case ']': {
r_token.type=TK_BRACKET_CLOSE;
return OK;
};
case '(': {
r_token.type=TK_PARENTHESIS_OPEN;
return OK;
};
case ')': {
r_token.type=TK_PARENTHESIS_CLOSE;
return OK;
};
case ':': {
r_token.type=TK_COLON;
return OK;
};
case ',': {
r_token.type=TK_COMMA;
return OK;
};
case '=': {
r_token.type=TK_EQUAL;
return OK;
};
case '"': {
String str;
while(true) {
CharType ch=p_stream->get_char();
if (ch==0) {
r_err_str="Unterminated String";
r_token.type=TK_ERROR;
return ERR_PARSE_ERROR;
} else if (ch=='"') {
break;
} else if (ch=='\\') {
//escaped characters...
CharType next = p_stream->get_char();
if (next==0) {
r_err_str="Unterminated String";
r_token.type=TK_ERROR;
return ERR_PARSE_ERROR;
}
CharType res=0;
switch(next) {
case 'b': res=8; break;
case 't': res=9; break;
case 'n': res=10; break;
case 'f': res=12; break;
case 'r': res=13; break;
case 'u': {
//hexnumbarh - oct is deprecated
for(int j=0;j<4;j++) {
CharType c = p_stream->get_char();
if (c==0) {
r_err_str="Unterminated String";
r_token.type=TK_ERROR;
return ERR_PARSE_ERROR;
}
if (!((c>='0' && c<='9') || (c>='a' && c<='f') || (c>='A' && c<='F'))) {
r_err_str="Malformed hex constant in string";
r_token.type=TK_ERROR;
return ERR_PARSE_ERROR;
}
CharType v;
if (c>='0' && c<='9') {
v=c-'0';
} else if (c>='a' && c<='f') {
v=c-'a';
v+=10;
} else if (c>='A' && c<='F') {
v=c-'A';
v+=10;
} else {
ERR_PRINT("BUG");
v=0;
}
res<<=4;
res|=v;
}
} break;
//case '\"': res='\"'; break;
//case '\\': res='\\'; break;
//case '/': res='/'; break;
default: {
res = next;
//r_err_str="Invalid escape sequence";
//return ERR_PARSE_ERROR;
} break;
}
str+=res;
} else {
if (ch=='\n')
line++;
str+=ch;
}
}
if (p_stream->is_utf8()) {
str.parse_utf8( str.ascii(true).get_data() );
}
r_token.type=TK_STRING;
r_token.value=str;
return OK;
} break;
default: {
if (cchar<=32) {
break;
}
if (cchar=='-' || (cchar>='0' && cchar<='9')) {
//a number
String num;
#define READING_SIGN 0
#define READING_INT 1
#define READING_DEC 2
#define READING_EXP 3
#define READING_DONE 4
int reading=READING_INT;
if (cchar=='-') {
num+='-';
cchar=p_stream->get_char();
}
CharType c = cchar;
bool exp_sign=false;
bool exp_beg=false;
bool is_float=false;
while(true) {
switch(reading) {
case READING_INT: {
if (c>='0' && c<='9') {
//pass
} else if (c=='.') {
reading=READING_DEC;
is_float=true;
} else if (c=='e') {
reading=READING_EXP;
} else {
reading=READING_DONE;
}
} break;
case READING_DEC: {
if (c>='0' && c<='9') {
} else if (c=='e') {
reading=READING_EXP;
} else {
reading=READING_DONE;
}
} break;
case READING_EXP: {
if (c>='0' && c<='9') {
exp_beg=true;
} else if ((c=='-' || c=='+') && !exp_sign && !exp_beg) {
exp_sign=true;
} else {
reading=READING_DONE;
}
} break;
}
if (reading==READING_DONE)
break;
num+=String::chr(c);
c = p_stream->get_char();
}
p_stream->saved=c;
r_token.type=TK_NUMBER;
if (is_float)
r_token.value=num.to_double();
else
r_token.value=num.to_int();
return OK;
} else if ((cchar>='A' && cchar<='Z') || (cchar>='a' && cchar<='z') || cchar=='_') {
String id;
bool first=true;
while((cchar>='A' && cchar<='Z') || (cchar>='a' && cchar<='z') || cchar=='_' || (!first && cchar>='0' && cchar<='9')) {
id+=String::chr(cchar);
cchar=p_stream->get_char();
first=false;
}
p_stream->saved=cchar;
r_token.type=TK_IDENTIFIER;
r_token.value=id;
return OK;
} else {
r_err_str="Unexpected character.";
r_token.type=TK_ERROR;
return ERR_PARSE_ERROR;
}
}
}
}
r_token.type=TK_ERROR;
return ERR_PARSE_ERROR;
}
template<class T>
Error VariantParser::_parse_construct(Stream *p_stream,Vector<T>& r_construct,int &line,String &r_err_str) {
Token token;
get_token(p_stream,token,line,r_err_str);
if (token.type!=TK_PARENTHESIS_OPEN) {
r_err_str="Expected '(' in constructor";
return ERR_PARSE_ERROR;
}
bool first=true;
while(true) {
if (!first) {
get_token(p_stream,token,line,r_err_str);
if (token.type==TK_COMMA) {
//do none
} else if (token.type==TK_PARENTHESIS_CLOSE) {
break;
} else {
r_err_str="Expected ',' or ')' in constructor";
return ERR_PARSE_ERROR;
}
}
get_token(p_stream,token,line,r_err_str);
if (token.type!=TK_NUMBER) {
r_err_str="Expected float in constructor";
return ERR_PARSE_ERROR;
}
r_construct.push_back(token.value);
first=false;
}
return OK;
}
Error VariantParser::parse_value(Token& token,Variant &value,Stream *p_stream,int &line,String &r_err_str,ResourceParser *p_res_parser) {
/* {
Error err = get_token(p_stream,token,line,r_err_str);
if (err)
return err;
}*/
if (token.type==TK_CURLY_BRACKET_OPEN) {
Dictionary d;
Error err = _parse_dictionary(d,p_stream,line,r_err_str,p_res_parser);
if (err)
return err;
value=d;
return OK;
} else if (token.type==TK_BRACKET_OPEN) {
Array a;
Error err = _parse_array(a,p_stream,line,r_err_str,p_res_parser);
if (err)
return err;
value=a;
return OK;
} else if (token.type==TK_IDENTIFIER) {
/*
VECTOR2, // 5
RECT2,
VECTOR3,
MATRIX32,
PLANE,
QUAT, // 10
_AABB, //sorry naming convention fail :( not like it's used often
MATRIX3,
TRANSFORM,
// misc types
COLOR,
IMAGE, // 15
NODE_PATH,
_RID,
OBJECT,
INPUT_EVENT,
DICTIONARY, // 20
ARRAY,
// arrays
RAW_ARRAY,
INT_ARRAY,
REAL_ARRAY,
STRING_ARRAY, // 25
VECTOR2_ARRAY,
VECTOR3_ARRAY,
COLOR_ARRAY,
VARIANT_MAX
*/
String id = token.value;
if (id=="true")
value=true;
else if (id=="false")
value=false;
else if (id=="null")
value=Variant();
else if (id=="Vector2"){
Vector<float> args;
Error err = _parse_construct<float>(p_stream,args,line,r_err_str);
if (err)
return err;
if (args.size()!=2) {
r_err_str="Expected 2 arguments for constructor";
}
value=Vector2(args[0],args[1]);
return OK;
} else if (id=="Rect2"){
Vector<float> args;
Error err = _parse_construct<float>(p_stream,args,line,r_err_str);
if (err)
return err;
if (args.size()!=4) {
r_err_str="Expected 4 arguments for constructor";
}
value=Rect2(args[0],args[1],args[2],args[3]);
return OK;
} else if (id=="Vector3"){
Vector<float> args;
Error err = _parse_construct<float>(p_stream,args,line,r_err_str);
if (err)
return err;
if (args.size()!=3) {
r_err_str="Expected 3 arguments for constructor";
}
value=Vector3(args[0],args[1],args[2]);
return OK;
} else if (id=="Matrix32"){
Vector<float> args;
Error err = _parse_construct<float>(p_stream,args,line,r_err_str);
if (err)
return err;
if (args.size()!=6) {
r_err_str="Expected 6 arguments for constructor";
}
Matrix32 m;
m[0]=Vector2(args[0],args[1]);
m[1]=Vector2(args[2],args[3]);
m[2]=Vector2(args[4],args[5]);
value=m;
return OK;
} else if (id=="Plane") {
Vector<float> args;
Error err = _parse_construct<float>(p_stream,args,line,r_err_str);
if (err)
return err;
if (args.size()!=4) {
r_err_str="Expected 4 arguments for constructor";
}
value=Plane(args[0],args[1],args[2],args[3]);
return OK;
} else if (id=="Quat") {
Vector<float> args;
Error err = _parse_construct<float>(p_stream,args,line,r_err_str);
if (err)
return err;
if (args.size()!=4) {
r_err_str="Expected 4 arguments for constructor";
}
value=Quat(args[0],args[1],args[2],args[3]);
return OK;
} else if (id=="AABB"){
Vector<float> args;
Error err = _parse_construct<float>(p_stream,args,line,r_err_str);
if (err)
return err;
if (args.size()!=6) {
r_err_str="Expected 6 arguments for constructor";
}
value=AABB(Vector3(args[0],args[1],args[2]),Vector3(args[3],args[4],args[5]));
return OK;
} else if (id=="Matrix3"){
Vector<float> args;
Error err = _parse_construct<float>(p_stream,args,line,r_err_str);
if (err)
return err;
if (args.size()!=9) {
r_err_str="Expected 9 arguments for constructor";
}
value=Matrix3(args[0],args[1],args[2],args[3],args[4],args[5],args[6],args[7],args[8]);
return OK;
} else if (id=="Transform"){
Vector<float> args;
Error err = _parse_construct<float>(p_stream,args,line,r_err_str);
if (err)
return err;
if (args.size()!=12) {
r_err_str="Expected 12 arguments for constructor";
}
value=Transform(Matrix3(args[0],args[1],args[2],args[3],args[4],args[5],args[6],args[7],args[8]),Vector3(args[9],args[10],args[11]));
return OK;
} else if (id=="Color") {
Vector<float> args;
Error err = _parse_construct<float>(p_stream,args,line,r_err_str);
if (err)
return err;
if (args.size()!=4) {
r_err_str="Expected 4 arguments for constructor";
}
value=Color(args[0],args[1],args[2],args[3]);
return OK;
} else if (id=="Image") {
//:|
get_token(p_stream,token,line,r_err_str);
if (token.type!=TK_PARENTHESIS_OPEN) {
r_err_str="Expected '('";
return ERR_PARSE_ERROR;
}
get_token(p_stream,token,line,r_err_str);
if (token.type==TK_PARENTHESIS_CLOSE) {
value=Image(); // just an Image()
return OK;
} else if (token.type!=TK_NUMBER) {
r_err_str="Expected number (width)";
return ERR_PARSE_ERROR;
}
get_token(p_stream,token,line,r_err_str);
int width=token.value;
if (token.type!=TK_COMMA) {
r_err_str="Expected ','";
return ERR_PARSE_ERROR;
}
get_token(p_stream,token,line,r_err_str);
if (token.type!=TK_NUMBER) {
r_err_str="Expected number (height)";
return ERR_PARSE_ERROR;
}
int height=token.value;
get_token(p_stream,token,line,r_err_str);
if (token.type!=TK_COMMA) {
r_err_str="Expected ','";
return ERR_PARSE_ERROR;
}
get_token(p_stream,token,line,r_err_str);
if (token.type!=TK_NUMBER) {
r_err_str="Expected number (mipmaps)";
return ERR_PARSE_ERROR;
}
int mipmaps=token.value;
get_token(p_stream,token,line,r_err_str);
if (token.type!=TK_COMMA) {
r_err_str="Expected ','";
return ERR_PARSE_ERROR;
}
get_token(p_stream,token,line,r_err_str);
if (token.type!=TK_IDENTIFIER) {
r_err_str="Expected identifier (format)";
return ERR_PARSE_ERROR;
}
String sformat=token.value;
Image::Format format;
if (sformat=="GRAYSCALE") format=Image::FORMAT_GRAYSCALE;
else if (sformat=="INTENSITY") format=Image::FORMAT_INTENSITY;
else if (sformat=="GRAYSCALE_ALPHA") format=Image::FORMAT_GRAYSCALE_ALPHA;
else if (sformat=="RGB") format=Image::FORMAT_RGB;
else if (sformat=="RGBA") format=Image::FORMAT_RGBA;
else if (sformat=="INDEXED") format=Image::FORMAT_INDEXED;
else if (sformat=="INDEXED_ALPHA") format=Image::FORMAT_INDEXED_ALPHA;
else if (sformat=="BC1") format=Image::FORMAT_BC1;
else if (sformat=="BC2") format=Image::FORMAT_BC2;
else if (sformat=="BC3") format=Image::FORMAT_BC3;
else if (sformat=="BC4") format=Image::FORMAT_BC4;
else if (sformat=="BC5") format=Image::FORMAT_BC5;
else if (sformat=="PVRTC2") format=Image::FORMAT_PVRTC2;
else if (sformat=="PVRTC2_ALPHA") format=Image::FORMAT_PVRTC2_ALPHA;
else if (sformat=="PVRTC4") format=Image::FORMAT_PVRTC4;
else if (sformat=="PVRTC4_ALPHA") format=Image::FORMAT_PVRTC4_ALPHA;
else if (sformat=="ATC") format=Image::FORMAT_ATC;
else if (sformat=="ATC_ALPHA_EXPLICIT") format=Image::FORMAT_ATC_ALPHA_EXPLICIT;
else if (sformat=="ATC_ALPHA_INTERPOLATED") format=Image::FORMAT_ATC_ALPHA_INTERPOLATED;
else if (sformat=="CUSTOM") format=Image::FORMAT_CUSTOM;
else {
r_err_str="Invalid image format: '"+sformat+"'";
return ERR_PARSE_ERROR;
};
int len = Image::get_image_data_size(width,height,format,mipmaps);
DVector<uint8_t> buffer;
buffer.resize(len);
if (buffer.size()!=len) {
r_err_str="Couldn't allocate image buffer of size: "+itos(len);
}
{
DVector<uint8_t>::Write w=buffer.write();
for(int i=0;i<len;i++) {
get_token(p_stream,token,line,r_err_str);
if (token.type!=TK_COMMA) {
r_err_str="Expected ','";
return ERR_PARSE_ERROR;
}
get_token(p_stream,token,line,r_err_str);
if (token.type!=TK_NUMBER) {
r_err_str="Expected number";
return ERR_PARSE_ERROR;
}
w[i]=int(token.value);
}
}
Image img(width,height,mipmaps,format,buffer);
value=img;
return OK;
} else if (id=="NodePath") {
get_token(p_stream,token,line,r_err_str);
if (token.type!=TK_PARENTHESIS_OPEN) {
r_err_str="Expected '('";
return ERR_PARSE_ERROR;
}
get_token(p_stream,token,line,r_err_str);
if (token.type!=TK_STRING) {
r_err_str="Expected string as argument for NodePath()";
return ERR_PARSE_ERROR;
}
value=NodePath(String(token.value));
get_token(p_stream,token,line,r_err_str);
if (token.type!=TK_PARENTHESIS_CLOSE) {
r_err_str="Expected ')'";
return ERR_PARSE_ERROR;
}
} else if (id=="RID") {
get_token(p_stream,token,line,r_err_str);
if (token.type!=TK_PARENTHESIS_OPEN) {
r_err_str="Expected '('";
return ERR_PARSE_ERROR;
}
get_token(p_stream,token,line,r_err_str);
if (token.type!=TK_NUMBER) {
r_err_str="Expected number as argument";
return ERR_PARSE_ERROR;
}
value=token.value;
get_token(p_stream,token,line,r_err_str);
if (token.type!=TK_PARENTHESIS_CLOSE) {
r_err_str="Expected ')'";
return ERR_PARSE_ERROR;
}
return OK;
} else if (id=="Resource" || id=="SubResource" || id=="ExtResource") {
get_token(p_stream,token,line,r_err_str);
if (token.type!=TK_PARENTHESIS_OPEN) {
r_err_str="Expected '('";
return ERR_PARSE_ERROR;
}
if (p_res_parser && id=="Resource" && p_res_parser->func){
RES res;
Error err = p_res_parser->func(p_res_parser->userdata,p_stream,res,line,r_err_str);
if (err)
return err;
value=res;
return OK;
} else if (p_res_parser && id=="ExtResource" && p_res_parser->ext_func){
RES res;
Error err = p_res_parser->ext_func(p_res_parser->userdata,p_stream,res,line,r_err_str);
if (err)
return err;
value=res;
return OK;
} else if (p_res_parser && id=="SubResource" && p_res_parser->sub_func){
RES res;
Error err = p_res_parser->sub_func(p_res_parser->userdata,p_stream,res,line,r_err_str);
if (err)
return err;
value=res;
return OK;
} else {
get_token(p_stream,token,line,r_err_str);
if (token.type==TK_STRING) {
String path=token.value;
RES res = ResourceLoader::load(path);
if (res.is_null()) {
r_err_str="Can't load resource at path: '"+path+"'.";
return ERR_PARSE_ERROR;
}
get_token(p_stream,token,line,r_err_str);
if (token.type!=TK_PARENTHESIS_CLOSE) {
r_err_str="Expected ')'";
return ERR_PARSE_ERROR;
}
value=res;
return OK;
} else {
r_err_str="Expected string as argument for Resource().";
return ERR_PARSE_ERROR;
}
}
return OK;
} else if (id=="InputEvent") {
get_token(p_stream,token,line,r_err_str);
if (token.type!=TK_PARENTHESIS_OPEN) {
r_err_str="Expected '('";
return ERR_PARSE_ERROR;
}
get_token(p_stream,token,line,r_err_str);
if (token.type!=TK_IDENTIFIER) {
r_err_str="Expected identifier";
return ERR_PARSE_ERROR;
}
String id = token.value;
InputEvent ie;
if (id=="KEY") {
get_token(p_stream,token,line,r_err_str);
if (token.type!=TK_COMMA) {
r_err_str="Expected ','";
return ERR_PARSE_ERROR;
}
ie.type=InputEvent::KEY;
get_token(p_stream,token,line,r_err_str);
if (token.type==TK_IDENTIFIER) {
String name=token.value;
ie.key.scancode=find_keycode(name);
} else if (token.type==TK_NUMBER) {
ie.key.scancode=token.value;
} else {
r_err_str="Expected string or integer for keycode";
return ERR_PARSE_ERROR;
}
get_token(p_stream,token,line,r_err_str);
if (token.type==TK_COMMA) {
get_token(p_stream,token,line,r_err_str);
if (token.type!=TK_IDENTIFIER) {
r_err_str="Expected identifier with modifier flas";
return ERR_PARSE_ERROR;
}
String mods=token.value;
if (mods.findn("C")!=-1)
ie.key.mod.control=true;
if (mods.findn("A")!=-1)
ie.key.mod.alt=true;
if (mods.findn("S")!=-1)
ie.key.mod.shift=true;
if (mods.findn("M")!=-1)
ie.key.mod.meta=true;
get_token(p_stream,token,line,r_err_str);
if (token.type!=TK_PARENTHESIS_CLOSE) {
r_err_str="Expected ')'";
return ERR_PARSE_ERROR;
}
} else if (token.type!=TK_PARENTHESIS_CLOSE) {
r_err_str="Expected ')' or modifier flags.";
return ERR_PARSE_ERROR;
}
} else if (id=="MBUTTON") {
get_token(p_stream,token,line,r_err_str);
if (token.type!=TK_COMMA) {
r_err_str="Expected ','";
return ERR_PARSE_ERROR;
}
ie.type=InputEvent::MOUSE_BUTTON;
get_token(p_stream,token,line,r_err_str);
if (token.type!=TK_NUMBER) {
r_err_str="Expected button index";
return ERR_PARSE_ERROR;
}
ie.mouse_button.button_index = token.value;
get_token(p_stream,token,line,r_err_str);
if (token.type!=TK_PARENTHESIS_CLOSE) {
r_err_str="Expected ')'";
return ERR_PARSE_ERROR;
}
} else if (id=="JBUTTON") {
get_token(p_stream,token,line,r_err_str);
if (token.type!=TK_COMMA) {
r_err_str="Expected ','";
return ERR_PARSE_ERROR;
}
ie.type=InputEvent::JOYSTICK_BUTTON;
get_token(p_stream,token,line,r_err_str);
if (token.type!=TK_NUMBER) {
r_err_str="Expected button index";
return ERR_PARSE_ERROR;
}
ie.joy_button.button_index = token.value;
get_token(p_stream,token,line,r_err_str);
if (token.type!=TK_PARENTHESIS_CLOSE) {
r_err_str="Expected ')'";
return ERR_PARSE_ERROR;
}
} else if (id=="JAXIS") {
get_token(p_stream,token,line,r_err_str);
if (token.type!=TK_COMMA) {
r_err_str="Expected ','";
return ERR_PARSE_ERROR;
}
ie.type=InputEvent::JOYSTICK_MOTION;
get_token(p_stream,token,line,r_err_str);
if (token.type!=TK_NUMBER) {
r_err_str="Expected axis index";
return ERR_PARSE_ERROR;
}
ie.joy_motion.axis = token.value;
get_token(p_stream,token,line,r_err_str);
if (token.type!=TK_PARENTHESIS_CLOSE) {
r_err_str="Expected ')'";
return ERR_PARSE_ERROR;
}
} else {
r_err_str="Invalid input event type.";
return ERR_PARSE_ERROR;
}
value=ie;
return OK;
} else if (id=="ByteArray") {
Vector<uint8_t> args;
Error err = _parse_construct<uint8_t>(p_stream,args,line,r_err_str);
if (err)
return err;
DVector<uint8_t> arr;
{
int len=args.size();
arr.resize(len);
DVector<uint8_t>::Write w = arr.write();
for(int i=0;i<len;i++) {
w[i]=args[i];
}
}
value=arr;
return OK;
} else if (id=="IntArray") {
Vector<int32_t> args;
Error err = _parse_construct<int32_t>(p_stream,args,line,r_err_str);
if (err)
return err;
DVector<int32_t> arr;
{
int len=args.size();
arr.resize(len);
DVector<int32_t>::Write w = arr.write();
for(int i=0;i<len;i++) {
w[i]=int(args[i]);
}
}
value=arr;
return OK;
} else if (id=="FloatArray") {
Vector<float> args;
Error err = _parse_construct<float>(p_stream,args,line,r_err_str);
if (err)
return err;
DVector<float> arr;
{
int len=args.size();
arr.resize(len);
DVector<float>::Write w = arr.write();
for(int i=0;i<len;i++) {
w[i]=args[i];
}
}
value=arr;
return OK;
} else if (id=="StringArray") {
get_token(p_stream,token,line,r_err_str);
if (token.type!=TK_PARENTHESIS_OPEN) {
r_err_str="Expected '('";
return ERR_PARSE_ERROR;
}
Vector<String> cs;
bool first=true;
while(true) {
if (!first) {
get_token(p_stream,token,line,r_err_str);
if (token.type==TK_COMMA) {
//do none
} else if (token.type!=TK_PARENTHESIS_CLOSE) {
break;
} else {
r_err_str="Expected ',' or ')'";
return ERR_PARSE_ERROR;
}
}
get_token(p_stream,token,line,r_err_str);
if (token.type!=TK_STRING) {
r_err_str="Expected string";
return ERR_PARSE_ERROR;
}
cs.push_back(token.value);
}
DVector<String> arr;
{
int len=cs.size();
arr.resize(len);
DVector<String>::Write w = arr.write();
for(int i=0;i<len;i++) {
w[i]=cs[i];
}
}
value=arr;
return OK;
} else if (id=="Vector2Array") {
Vector<float> args;
Error err = _parse_construct<float>(p_stream,args,line,r_err_str);
if (err)
return err;
DVector<Vector2> arr;
{
int len=args.size()/2;
arr.resize(len);
DVector<Vector2>::Write w = arr.write();
for(int i=0;i<len;i++) {
w[i]=Vector2(args[i*2+0],args[i*2+1]);
}
}
value=arr;
return OK;
} else if (id=="Vector3Array") {
Vector<float> args;
Error err = _parse_construct<float>(p_stream,args,line,r_err_str);
if (err)
return err;
DVector<Vector3> arr;
{
int len=args.size()/3;
arr.resize(len);
DVector<Vector3>::Write w = arr.write();
for(int i=0;i<len;i++) {
w[i]=Vector3(args[i*3+0],args[i*3+1],args[i*3+2]);
}
}
value=arr;
return OK;
} else if (id=="ColorArray") {
Vector<float> args;
Error err = _parse_construct<float>(p_stream,args,line,r_err_str);
if (err)
return err;
DVector<Color> arr;
{
int len=args.size()/4;
arr.resize(len);
DVector<Color>::Write w = arr.write();
for(int i=0;i<len;i++) {
w[i]=Color(args[i*3+0],args[i*3+1],args[i*3+2],args[i*3+3]);
}
}
value=arr;
return OK;
} else {
r_err_str="Unexpected identifier: '"+id+"'.";
return ERR_PARSE_ERROR;
}
/*
VECTOR2, // 5
RECT2,
VECTOR3,
MATRIX32,
PLANE,
QUAT, // 10
_AABB, //sorry naming convention fail :( not like it's used often
MATRIX3,
TRANSFORM,
// misc types
COLOR,
IMAGE, // 15
NODE_PATH,
_RID,
OBJECT,
INPUT_EVENT,
DICTIONARY, // 20
ARRAY,
// arrays
RAW_ARRAY,
INT_ARRAY,
REAL_ARRAY,
STRING_ARRAY, // 25
VECTOR2_ARRAY,
VECTOR3_ARRAY,
COLOR_ARRAY,
VARIANT_MAX
*/
return OK;
} else if (token.type==TK_NUMBER) {
value=token.value;
return OK;
} else if (token.type==TK_STRING) {
value=token.value;
return OK;
} else {
r_err_str="Expected value, got "+String(tk_name[token.type])+".";
return ERR_PARSE_ERROR;
}
return ERR_PARSE_ERROR;
}
Error VariantParser::_parse_array(Array &array, Stream *p_stream, int &line, String &r_err_str, ResourceParser *p_res_parser) {
Token token;
bool need_comma=false;
while(true) {
if (p_stream->is_eof()) {
r_err_str="Unexpected End of File while parsing array";
return ERR_FILE_CORRUPT;
}
Error err = get_token(p_stream,token,line,r_err_str);
if (err!=OK)
return err;
if (token.type==TK_BRACKET_CLOSE) {
return OK;
}
if (need_comma) {
if (token.type!=TK_COMMA) {
r_err_str="Expected ','";
return ERR_PARSE_ERROR;
} else {
need_comma=false;
continue;
}
}
Variant v;
err = parse_value(token,v,p_stream,line,r_err_str,p_res_parser);
if (err)
return err;
array.push_back(v);
need_comma=true;
}
return OK;
}
Error VariantParser::_parse_dictionary(Dictionary &object, Stream *p_stream, int &line, String &r_err_str, ResourceParser *p_res_parser) {
bool at_key=true;
Variant key;
Token token;
bool need_comma=false;
while(true) {
if (p_stream->is_eof()) {
r_err_str="Unexpected End of File while parsing dictionary";
return ERR_FILE_CORRUPT;
}
if (at_key) {
Error err = get_token(p_stream,token,line,r_err_str);
if (err!=OK)
return err;
if (token.type==TK_CURLY_BRACKET_CLOSE) {
return OK;
}
if (need_comma) {
if (token.type!=TK_COMMA) {
r_err_str="Expected '}' or ','";
return ERR_PARSE_ERROR;
} else {
need_comma=false;
continue;
}
}
err = parse_value(token,key,p_stream,line,r_err_str,p_res_parser);
if (err)
return err;
err = get_token(p_stream,token,line,r_err_str);
if (err!=OK)
return err;
if (token.type!=TK_COLON) {
r_err_str="Expected ':'";
return ERR_PARSE_ERROR;
}
at_key=false;
} else {
Error err = get_token(p_stream,token,line,r_err_str);
if (err!=OK)
return err;
Variant v;
err = parse_value(token,v,p_stream,line,r_err_str,p_res_parser);
if (err)
return err;
object[key]=v;
need_comma=true;
at_key=true;
}
}
return OK;
}
Error VariantParser::_parse_tag(Token& token, Stream *p_stream, int &line, String &r_err_str, Tag& r_tag, ResourceParser *p_res_parser) {
r_tag.fields.clear();
if (token.type!=TK_BRACKET_OPEN) {
r_err_str="Expected '['";
return ERR_PARSE_ERROR;
}
get_token(p_stream,token,line,r_err_str);
if (token.type!=TK_IDENTIFIER) {
r_err_str="Expected identifier (tag name)";
return ERR_PARSE_ERROR;
}
r_tag.name=token.value;
while(true) {
if (p_stream->is_eof()) {
r_err_str="Unexpected End of File while parsing tag: "+r_tag.name;
return ERR_FILE_CORRUPT;
}
get_token(p_stream,token,line,r_err_str);
if (token.type==TK_BRACKET_CLOSE)
break;
if (token.type!=TK_IDENTIFIER) {
r_err_str="Expected Identifier";
return ERR_PARSE_ERROR;
}
String id=token.value;
get_token(p_stream,token,line,r_err_str);
if (token.type!=TK_EQUAL) {
r_err_str="Expected '='";
return ERR_PARSE_ERROR;
}
get_token(p_stream,token,line,r_err_str);
Variant value;
Error err = parse_value(token,value,p_stream,line,r_err_str,p_res_parser);
if (err)
return err;
r_tag.fields[id]=value;
}
return OK;
}
Error VariantParser::parse_tag(Stream *p_stream, int &line, String &r_err_str, Tag& r_tag, ResourceParser *p_res_parser) {
Token token;
get_token(p_stream,token,line,r_err_str);
if (token.type==TK_EOF) {
return ERR_FILE_EOF;
}
if (token.type!=TK_BRACKET_OPEN) {
r_err_str="Expected '['";
return ERR_PARSE_ERROR;
}
return _parse_tag(token,p_stream,line,r_err_str,r_tag,p_res_parser);
}
Error VariantParser::parse_tag_assign_eof(Stream *p_stream, int &line, String &r_err_str, Tag& r_tag, String &r_assign, Variant &r_value, ResourceParser *p_res_parser) {
//assign..
String what;
while(true) {
CharType c;
if (p_stream->saved) {
c=p_stream->saved;
p_stream->saved=0;
} else {
c=p_stream->get_char();
}
if (p_stream->is_eof())
return ERR_FILE_EOF;
if (c=='[' && what.length()==0) {
//it's a tag!
p_stream->saved='['; //go back one
Error err = parse_tag(p_stream,line,r_err_str,r_tag,p_res_parser);
return err;
}
if (c>32) {
if (c!='=') {
what+=String::chr(c);
} else {
r_assign=what;
Token token;
get_token(p_stream,token,line,r_err_str);
Error err = parse_value(token,r_value,p_stream,line,r_err_str,p_res_parser);
if (err) {
}
return err;
}
} else if (c=='\n') {
line++;
}
}
return OK;
}
Error VariantParser::parse(Stream *p_stream, Variant& r_ret, String &r_err_str, int &r_err_line, ResourceParser *p_res_parser) {
Token token;
Error err = get_token(p_stream,token,r_err_line,r_err_str);
if (err)
return err;
if (token.type==TK_EOF) {
return ERR_FILE_EOF;
}
return parse_value(token,r_ret,p_stream,r_err_line,r_err_str,p_res_parser);
}
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