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-rw-r--r--core/io/json.cpp206
1 files changed, 112 insertions, 94 deletions
diff --git a/core/io/json.cpp b/core/io/json.cpp
index 3a0edceb81..bc4527869b 100644
--- a/core/io/json.cpp
+++ b/core/io/json.cpp
@@ -5,8 +5,8 @@
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
-/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
-/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */
+/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */
+/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
@@ -30,7 +30,7 @@
#include "json.h"
-#include "core/print_string.h"
+#include "core/string/print_string.h"
const char *JSON::tk_name[TK_MAX] = {
"'{'",
@@ -46,38 +46,39 @@ const char *JSON::tk_name[TK_MAX] = {
};
static String _make_indent(const String &p_indent, int p_size) {
-
String indent_text = "";
- if (!p_indent.empty()) {
- for (int i = 0; i < p_size; i++)
+ if (!p_indent.is_empty()) {
+ for (int i = 0; i < p_size; i++) {
indent_text += p_indent;
+ }
}
return indent_text;
}
String JSON::_print_var(const Variant &p_var, const String &p_indent, int p_cur_indent, bool p_sort_keys) {
-
String colon = ":";
String end_statement = "";
- if (!p_indent.empty()) {
+ if (!p_indent.is_empty()) {
colon += " ";
end_statement += "\n";
}
switch (p_var.get_type()) {
-
- case Variant::NIL: return "null";
- case Variant::BOOL: return p_var.operator bool() ? "true" : "false";
- case Variant::INT: return itos(p_var);
- case Variant::FLOAT: return rtos(p_var);
+ case Variant::NIL:
+ return "null";
+ case Variant::BOOL:
+ return p_var.operator bool() ? "true" : "false";
+ case Variant::INT:
+ return itos(p_var);
+ case Variant::FLOAT:
+ return rtos(p_var);
case Variant::PACKED_INT32_ARRAY:
case Variant::PACKED_INT64_ARRAY:
case Variant::PACKED_FLOAT32_ARRAY:
case Variant::PACKED_FLOAT64_ARRAY:
case Variant::PACKED_STRING_ARRAY:
case Variant::ARRAY: {
-
String s = "[";
s += end_statement;
Array a = p_var;
@@ -90,20 +91,19 @@ String JSON::_print_var(const Variant &p_var, const String &p_indent, int p_cur_
}
s += end_statement + _make_indent(p_indent, p_cur_indent) + "]";
return s;
- };
+ }
case Variant::DICTIONARY: {
-
String s = "{";
s += end_statement;
Dictionary d = p_var;
List<Variant> keys;
d.get_key_list(&keys);
- if (p_sort_keys)
+ if (p_sort_keys) {
keys.sort();
+ }
for (List<Variant>::Element *E = keys.front(); E; E = E->next()) {
-
if (E != keys.front()) {
s += ",";
s += end_statement;
@@ -115,69 +115,59 @@ String JSON::_print_var(const Variant &p_var, const String &p_indent, int p_cur_
s += end_statement + _make_indent(p_indent, p_cur_indent) + "}";
return s;
- };
- default: return "\"" + String(p_var).json_escape() + "\"";
+ }
+ default:
+ return "\"" + String(p_var).json_escape() + "\"";
}
}
String JSON::print(const Variant &p_var, const String &p_indent, bool p_sort_keys) {
-
return _print_var(p_var, p_indent, 0, p_sort_keys);
}
-Error JSON::_get_token(const CharType *p_str, int &index, int p_len, Token &r_token, int &line, String &r_err_str) {
-
+Error JSON::_get_token(const char32_t *p_str, int &index, int p_len, Token &r_token, int &line, String &r_err_str) {
while (p_len > 0) {
switch (p_str[index]) {
-
case '\n': {
-
line++;
index++;
break;
- };
+ }
case 0: {
r_token.type = TK_EOF;
return OK;
} break;
case '{': {
-
r_token.type = TK_CURLY_BRACKET_OPEN;
index++;
return OK;
- };
+ }
case '}': {
-
r_token.type = TK_CURLY_BRACKET_CLOSE;
index++;
return OK;
- };
+ }
case '[': {
-
r_token.type = TK_BRACKET_OPEN;
index++;
return OK;
- };
+ }
case ']': {
-
r_token.type = TK_BRACKET_CLOSE;
index++;
return OK;
- };
+ }
case ':': {
-
r_token.type = TK_COLON;
index++;
return OK;
- };
+ }
case ',': {
-
r_token.type = TK_COMMA;
index++;
return OK;
- };
+ }
case '"': {
-
index++;
String str;
while (true) {
@@ -190,34 +180,42 @@ Error JSON::_get_token(const CharType *p_str, int &index, int p_len, Token &r_to
} else if (p_str[index] == '\\') {
//escaped characters...
index++;
- CharType next = p_str[index];
+ char32_t next = p_str[index];
if (next == 0) {
r_err_str = "Unterminated String";
return ERR_PARSE_ERROR;
}
- CharType res = 0;
+ char32_t 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 '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': {
// hex number
for (int j = 0; j < 4; j++) {
- CharType c = p_str[index + j + 1];
+ char32_t c = p_str[index + j + 1];
if (c == 0) {
r_err_str = "Unterminated String";
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";
return ERR_PARSE_ERROR;
}
- CharType v;
+ char32_t v;
if (c >= '0' && c <= '9') {
v = c - '0';
} else if (c >= 'a' && c <= 'f') {
@@ -245,8 +243,9 @@ Error JSON::_get_token(const CharType *p_str, int &index, int p_len, Token &r_to
str += res;
} else {
- if (p_str[index] == '\n')
+ if (p_str[index] == '\n') {
line++;
+ }
str += p_str[index];
}
index++;
@@ -258,7 +257,6 @@ Error JSON::_get_token(const CharType *p_str, int &index, int p_len, Token &r_to
} break;
default: {
-
if (p_str[index] <= 32) {
index++;
break;
@@ -266,19 +264,17 @@ Error JSON::_get_token(const CharType *p_str, int &index, int p_len, Token &r_to
if (p_str[index] == '-' || (p_str[index] >= '0' && p_str[index] <= '9')) {
//a number
- const CharType *rptr;
- double number = String::to_double(&p_str[index], &rptr);
+ const char32_t *rptr;
+ double number = String::to_float(&p_str[index], &rptr);
index += (rptr - &p_str[index]);
r_token.type = TK_NUMBER;
r_token.value = number;
return OK;
} else if ((p_str[index] >= 'A' && p_str[index] <= 'Z') || (p_str[index] >= 'a' && p_str[index] <= 'z')) {
-
String id;
while ((p_str[index] >= 'A' && p_str[index] <= 'Z') || (p_str[index] >= 'a' && p_str[index] <= 'z')) {
-
id += p_str[index];
index++;
}
@@ -297,46 +293,42 @@ Error JSON::_get_token(const CharType *p_str, int &index, int p_len, Token &r_to
return ERR_PARSE_ERROR;
}
-Error JSON::_parse_value(Variant &value, Token &token, const CharType *p_str, int &index, int p_len, int &line, String &r_err_str) {
-
+Error JSON::_parse_value(Variant &value, Token &token, const char32_t *p_str, int &index, int p_len, int &line, String &r_err_str) {
if (token.type == TK_CURLY_BRACKET_OPEN) {
-
Dictionary d;
Error err = _parse_object(d, p_str, index, p_len, line, r_err_str);
- if (err)
+ if (err) {
return err;
+ }
value = d;
return OK;
} else if (token.type == TK_BRACKET_OPEN) {
-
Array a;
Error err = _parse_array(a, p_str, index, p_len, line, r_err_str);
- if (err)
+ if (err) {
return err;
+ }
value = a;
return OK;
} else if (token.type == TK_IDENTIFIER) {
-
String id = token.value;
- if (id == "true")
+ if (id == "true") {
value = true;
- else if (id == "false")
+ } else if (id == "false") {
value = false;
- else if (id == "null")
+ } else if (id == "null") {
value = Variant();
- else {
+ } else {
r_err_str = "Expected 'true','false' or 'null', got '" + id + "'.";
return ERR_PARSE_ERROR;
}
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 {
@@ -345,26 +337,22 @@ Error JSON::_parse_value(Variant &value, Token &token, const CharType *p_str, in
}
}
-Error JSON::_parse_array(Array &array, const CharType *p_str, int &index, int p_len, int &line, String &r_err_str) {
-
+Error JSON::_parse_array(Array &array, const char32_t *p_str, int &index, int p_len, int &line, String &r_err_str) {
Token token;
bool need_comma = false;
while (index < p_len) {
-
Error err = _get_token(p_str, index, p_len, token, line, r_err_str);
- if (err != OK)
+ 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 {
@@ -375,40 +363,37 @@ Error JSON::_parse_array(Array &array, const CharType *p_str, int &index, int p_
Variant v;
err = _parse_value(v, token, p_str, index, p_len, line, r_err_str);
- if (err)
+ if (err) {
return err;
+ }
array.push_back(v);
need_comma = true;
}
+ r_err_str = "Expected ']'";
return ERR_PARSE_ERROR;
}
-Error JSON::_parse_object(Dictionary &object, const CharType *p_str, int &index, int p_len, int &line, String &r_err_str) {
-
+Error JSON::_parse_object(Dictionary &object, const char32_t *p_str, int &index, int p_len, int &line, String &r_err_str) {
bool at_key = true;
String key;
Token token;
bool need_comma = false;
while (index < p_len) {
-
if (at_key) {
-
Error err = _get_token(p_str, index, p_len, token, line, r_err_str);
- if (err != OK)
+ 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 {
@@ -418,43 +403,43 @@ Error JSON::_parse_object(Dictionary &object, const CharType *p_str, int &index,
}
if (token.type != TK_STRING) {
-
r_err_str = "Expected key";
return ERR_PARSE_ERROR;
}
key = token.value;
err = _get_token(p_str, index, p_len, token, line, r_err_str);
- if (err != OK)
+ 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_str, index, p_len, token, line, r_err_str);
- if (err != OK)
+ if (err != OK) {
return err;
+ }
Variant v;
err = _parse_value(v, token, p_str, index, p_len, line, r_err_str);
- if (err)
+ if (err) {
return err;
+ }
object[key] = v;
need_comma = true;
at_key = true;
}
}
+ r_err_str = "Expected '}'";
return ERR_PARSE_ERROR;
}
Error JSON::parse(const String &p_json, Variant &r_ret, String &r_err_str, int &r_err_line) {
-
- const CharType *str = p_json.ptr();
+ const char32_t *str = p_json.ptr();
int idx = 0;
int len = p_json.length();
Token token;
@@ -462,10 +447,43 @@ Error JSON::parse(const String &p_json, Variant &r_ret, String &r_err_str, int &
String aux_key;
Error err = _get_token(str, idx, len, token, r_err_line, r_err_str);
- if (err)
+ if (err) {
return err;
+ }
err = _parse_value(r_ret, token, str, idx, len, r_err_line, r_err_str);
return err;
}
+
+Error JSONParser::parse_string(const String &p_json_string) {
+ return JSON::parse(p_json_string, data, err_text, err_line);
+}
+String JSONParser::get_error_text() const {
+ return err_text;
+}
+int JSONParser::get_error_line() const {
+ return err_line;
+}
+Variant JSONParser::get_data() const {
+ return data;
+}
+
+Error JSONParser::decode_data(const Variant &p_data, const String &p_indent, bool p_sort_keys) {
+ string = JSON::print(p_data, p_indent, p_sort_keys);
+ data = p_data;
+ return OK;
+}
+
+String JSONParser::get_string() const {
+ return string;
+}
+
+void JSONParser::_bind_methods() {
+ ClassDB::bind_method(D_METHOD("parse_string", "json_string"), &JSONParser::parse_string);
+ ClassDB::bind_method(D_METHOD("get_error_text"), &JSONParser::get_error_text);
+ ClassDB::bind_method(D_METHOD("get_error_line"), &JSONParser::get_error_line);
+ ClassDB::bind_method(D_METHOD("get_data"), &JSONParser::get_data);
+ ClassDB::bind_method(D_METHOD("decode_data", "data", "indent", "sort_keys"), &JSONParser::decode_data, DEFVAL(""), DEFVAL(true));
+ ClassDB::bind_method(D_METHOD("get_string"), &JSONParser::get_string);
+}
generated by cgit v1.2.3 (git 2.25.1) at 2025-03-30 23:48:45 +0000