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-rw-r--r--core/ustring.cpp54
-rw-r--r--core/ustring.h2
-rw-r--r--core/variant_op.cpp16
3 files changed, 31 insertions, 41 deletions
diff --git a/core/ustring.cpp b/core/ustring.cpp
index 8ad1d434d4..497e8f29ed 100644
--- a/core/ustring.cpp
+++ b/core/ustring.cpp
@@ -3573,8 +3573,8 @@ String String::lpad(int min_length, const String& character) const {
// sprintf is implemented in GDScript via:
// "fish %s pie" % "frog"
// "fish %s %d pie" % ["frog", 12]
-String String::sprintf(const Array& values) const {
-
+// In case of an error, the string returned is the error description and "error" is true.
+String String::sprintf(const Array& values, bool* error) const {
String formatted;
CharType* self = (CharType*)c_str();
int num_items = values.size();
@@ -3587,6 +3587,7 @@ String String::sprintf(const Array& values) const {
bool left_justified;
bool show_sign;
+ *error = true;
for (; *self; self++) {
const CharType c = *self;
@@ -3603,13 +3604,11 @@ String String::sprintf(const Array& values) const {
case 'x': // Hexadecimal (lowercase)
case 'X': { // Hexadecimal (uppercase)
if (value_index >= values.size()) {
- ERR_EXPLAIN("not enough arguments for format string");
- ERR_FAIL_V("");
+ return "not enough arguments for format string";
}
if (!values[value_index].is_num()) {
- ERR_EXPLAIN("a number is required");
- ERR_FAIL_V("");
+ return "a number is required";
}
int64_t value = values[value_index];
@@ -3645,13 +3644,11 @@ String String::sprintf(const Array& values) const {
}
case 'f': { // Float
if (value_index >= values.size()) {
- ERR_EXPLAIN("not enough arguments for format string");
- ERR_FAIL_V("");
+ return "not enough arguments for format string";
}
if (!values[value_index].is_num()) {
- ERR_EXPLAIN("a number is required");
- ERR_FAIL_V("");
+ return "a number is required";
}
double value = values[value_index];
@@ -3680,8 +3677,7 @@ String String::sprintf(const Array& values) const {
}
case 's': { // String
if (value_index >= values.size()) {
- ERR_EXPLAIN("not enough arguments for format string");
- ERR_FAIL_V("");
+ return "not enough arguments for format string";
}
String str = values[value_index];
@@ -3699,8 +3695,7 @@ String String::sprintf(const Array& values) const {
}
case 'c': {
if (value_index >= values.size()) {
- ERR_EXPLAIN("not enough arguments for format string");
- ERR_FAIL_V("");
+ return "not enough arguments for format string";
}
// Convert to character.
@@ -3708,22 +3703,18 @@ String String::sprintf(const Array& values) const {
if (values[value_index].is_num()) {
int value = values[value_index];
if (value < 0) {
- ERR_EXPLAIN("unsigned byte integer is lower than maximum")
- ERR_FAIL_V("");
+ return "unsigned byte integer is lower than maximum";
} else if (value > 255) {
- ERR_EXPLAIN("unsigned byte integer is greater than maximum")
- ERR_FAIL_V("");
+ return "unsigned byte integer is greater than maximum";
}
str = chr(values[value_index]);
} else if (values[value_index].get_type() == Variant::STRING) {
str = values[value_index];
if (str.length() != 1) {
- ERR_EXPLAIN("%c requires number or single-character string");
- ERR_FAIL_V("");
+ return "%c requires number or single-character string";
}
} else {
- ERR_EXPLAIN("%c requires number or single-character string");
- ERR_FAIL_V("");
+ return "%c requires number or single-character string";
}
// Padding.
@@ -3764,8 +3755,7 @@ String String::sprintf(const Array& values) const {
}
case '.': { // Float separtor.
if (in_decimals) {
- ERR_EXPLAIN("too many decimal points in format");
- ERR_FAIL_V("");
+ return "too many decimal points in format";
}
in_decimals = true;
min_decimals = 0; // We want to add the value manually.
@@ -3774,13 +3764,11 @@ String String::sprintf(const Array& values) const {
case '*': { // Dyanmic width, based on value.
if (value_index >= values.size()) {
- ERR_EXPLAIN("not enough arguments for format string");
- ERR_FAIL_V("");
+ return "not enough arguments for format string";
}
if (!values[value_index].is_num()) {
- ERR_EXPLAIN("* wants number");
- ERR_FAIL_V("");
+ return "* wants number";
}
int size = values[value_index];
@@ -3796,8 +3784,7 @@ String String::sprintf(const Array& values) const {
}
default: {
- ERR_EXPLAIN("unsupported format character");
- ERR_FAIL_V("");
+ return "unsupported format character";
}
}
} else { // Not in format string.
@@ -3819,14 +3806,13 @@ String String::sprintf(const Array& values) const {
}
if (in_format) {
- ERR_EXPLAIN("incomplete format");
- ERR_FAIL_V("");
+ return "incomplete format";
}
if (value_index != values.size()) {
- ERR_EXPLAIN("not all arguments converted during string formatting");
- ERR_FAIL_V("");
+ return "not all arguments converted during string formatting";
}
+ *error = false;
return formatted;
}
diff --git a/core/ustring.h b/core/ustring.h
index c7da26a695..f79e5ce306 100644
--- a/core/ustring.h
+++ b/core/ustring.h
@@ -130,7 +130,7 @@ public:
String pad_zeros(int p_digits) const;
String lpad(int min_length,const String& character=" ") const;
String rpad(int min_length,const String& character=" ") const;
- String sprintf(const Array& values) const;
+ String sprintf(const Array& values, bool* error) const;
static String num(double p_num,int p_decimals=-1);
static String num_scientific(double p_num);
static String num_real(double p_num);
diff --git a/core/variant_op.cpp b/core/variant_op.cpp
index d6129e150c..87d9738b06 100644
--- a/core/variant_op.cpp
+++ b/core/variant_op.cpp
@@ -741,18 +741,22 @@ void Variant::evaluate(const Operator& p_op, const Variant& p_a, const Variant&
_RETURN( p_a._data._int % p_b._data._int );
} else if (p_a.type==STRING) {
- const String *str=reinterpret_cast<const String*>(p_a._data._mem);
+ const String* format=reinterpret_cast<const String*>(p_a._data._mem);
+ String result;
+ bool error;
if (p_b.type==ARRAY) {
// e.g. "frog %s %d" % ["fish", 12]
- const Array *arr=reinterpret_cast<const Array*>(p_b._data._mem);
- _RETURN(str->sprintf(*arr));
+ const Array* args=reinterpret_cast<const Array*>(p_b._data._mem);
+ result=format->sprintf(*args, &error);
} else {
// e.g. "frog %d" % 12
- Array arr;
- arr.push_back(p_b);
- _RETURN(str->sprintf(arr));
+ Array args;
+ args.push_back(p_b);
+ result=format->sprintf(args, &error);
}
+ r_valid = !error;
+ _RETURN(result);
}
r_valid=false;