diff options
Diffstat (limited to 'core/string/ustring.cpp')
-rw-r--r-- | core/string/ustring.cpp | 120 |
1 files changed, 78 insertions, 42 deletions
diff --git a/core/string/ustring.cpp b/core/string/ustring.cpp index 6218c21cde..8993f9667d 100644 --- a/core/string/ustring.cpp +++ b/core/string/ustring.cpp @@ -1180,9 +1180,14 @@ Vector<String> String::split(const String &p_splitter, bool p_allow_empty, int p int len = length(); while (true) { - int end = find(p_splitter, from); - if (end < 0) { - end = len; + int end; + if (p_splitter.is_empty()) { + end = from + 1; + } else { + end = find(p_splitter, from); + if (end < 0) { + end = len; + } } if (p_allow_empty || (end > from)) { if (p_maxsplit <= 0) { @@ -1223,7 +1228,15 @@ Vector<String> String::rsplit(const String &p_splitter, bool p_allow_empty, int break; } - int left_edge = rfind(p_splitter, remaining_len - p_splitter.length()); + int left_edge; + if (p_splitter.is_empty()) { + left_edge = remaining_len - 1; + if (left_edge == 0) { + left_edge--; // Skip to the < 0 condition. + } + } else { + left_edge = rfind(p_splitter, remaining_len - p_splitter.length()); + } if (left_edge < 0) { // no more splitters, we're done @@ -1447,15 +1460,25 @@ String String::num(double p_num, int p_decimals) { fmt[5] = 'f'; fmt[6] = 0; } - char buf[256]; + // if we want to convert a double with as much decimal places as as + // DBL_MAX or DBL_MIN then we would theoretically need a buffer of at least + // DBL_MAX_10_EXP + 2 for DBL_MAX and DBL_MAX_10_EXP + 4 for DBL_MIN. + // BUT those values where still giving me exceptions, so I tested from + // DBL_MAX_10_EXP + 10 incrementing one by one and DBL_MAX_10_EXP + 17 (325) + // was the first buffer size not to throw an exception + char buf[325]; #if defined(__GNUC__) || defined(_MSC_VER) - snprintf(buf, 256, fmt, p_num); + // PLEASE NOTE that, albeit vcrt online reference states that snprintf + // should safely truncate the output to the given buffer size, we have + // found a case where this is not true, so we should create a buffer + // as big as needed + snprintf(buf, 325, fmt, p_num); #else sprintf(buf, fmt, p_num); #endif - buf[255] = 0; + buf[324] = 0; //destroy trailing zeroes { bool period = false; @@ -1567,10 +1590,11 @@ String String::num_real(double p_num, bool p_trailing) { #else int decimals = 6; #endif - // We want to align the digits to the above sane default, so we only - // need to subtract log10 for numbers with a positive power of ten. - if (p_num > 10) { - decimals -= (int)floor(log10(p_num)); + // We want to align the digits to the above sane default, so we only need + // to subtract log10 for numbers with a positive power of ten magnitude. + double abs_num = Math::abs(p_num); + if (abs_num > 10) { + decimals -= (int)floor(log10(abs_num)); } return num(p_num, decimals); } @@ -2815,7 +2839,7 @@ String String::substr(int p_from, int p_chars) const { return String(*this); } - String s = String(); + String s; s.copy_from_unchecked(&get_data()[p_from], p_chars); return s; } @@ -3667,29 +3691,43 @@ bool String::is_network_share_path() const { String String::simplify_path() const { String s = *this; String drive; - if (s.begins_with("local://")) { - drive = "local://"; - s = s.substr(8, s.length()); - } else if (s.begins_with("res://")) { - drive = "res://"; - s = s.substr(6, s.length()); - } else if (s.begins_with("user://")) { - drive = "user://"; - s = s.substr(7, s.length()); - } else if (is_network_share_path()) { - drive = s.substr(0, 2); - s = s.substr(2, s.length() - 2); - } else if (s.begins_with("/") || s.begins_with("\\")) { - drive = s.substr(0, 1); - s = s.substr(1, s.length() - 1); - } else { - int p = s.find(":/"); - if (p == -1) { - p = s.find(":\\"); + + // Check if we have a special path (like res://) or a protocol identifier. + int p = s.find("://"); + bool found = false; + if (p > 0) { + bool only_chars = true; + for (int i = 0; i < p; i++) { + if (!is_ascii_alphanumeric_char(s[i])) { + only_chars = false; + break; + } + } + if (only_chars) { + found = true; + drive = s.substr(0, p + 3); + s = s.substr(p + 3); } - if (p != -1 && p < s.find("/")) { - drive = s.substr(0, p + 2); - s = s.substr(p + 2, s.length()); + } + if (!found) { + if (is_network_share_path()) { + // Network path, beginning with // or \\. + drive = s.substr(0, 2); + s = s.substr(2); + } else if (s.begins_with("/") || s.begins_with("\\")) { + // Absolute path. + drive = s.substr(0, 1); + s = s.substr(1); + } else { + // Windows-style drive path, like C:/ or C:\. + p = s.find(":/"); + if (p == -1) { + p = s.find(":\\"); + } + if (p != -1 && p < s.find("/")) { + drive = s.substr(0, p + 2); + s = s.substr(p + 2); + } } } @@ -3884,7 +3922,6 @@ String String::c_unescape() const { escaped = escaped.replace("\\v", "\v"); escaped = escaped.replace("\\'", "\'"); escaped = escaped.replace("\\\"", "\""); - escaped = escaped.replace("\\?", "\?"); escaped = escaped.replace("\\\\", "\\"); return escaped; @@ -3901,7 +3938,6 @@ String String::c_escape() const { escaped = escaped.replace("\t", "\\t"); escaped = escaped.replace("\v", "\\v"); escaped = escaped.replace("\'", "\\'"); - escaped = escaped.replace("\?", "\\?"); escaped = escaped.replace("\"", "\\\""); return escaped; @@ -4651,10 +4687,10 @@ String String::sprintf(const Array &values, bool *error) const { double value = values[value_index]; bool is_negative = (value < 0); String str = String::num(ABS(value), min_decimals); - bool not_numeric = isinf(value) || isnan(value); + const bool is_finite = Math::is_finite(value); // Pad decimals out. - if (!not_numeric) { + if (is_finite) { str = str.pad_decimals(min_decimals); } @@ -4662,7 +4698,7 @@ String String::sprintf(const Array &values, bool *error) const { // Padding. Leave room for sign later if required. int pad_chars_count = (is_negative || show_sign) ? min_chars - 1 : min_chars; - String pad_char = (pad_with_zeros && !not_numeric) ? String("0") : String(" "); // Never pad NaN or inf with zeros + String pad_char = (pad_with_zeros && is_finite) ? String("0") : String(" "); // Never pad NaN or inf with zeros if (left_justified) { str = str.rpad(pad_chars_count, pad_char); } else { @@ -4713,10 +4749,10 @@ String String::sprintf(const Array &values, bool *error) const { for (int i = 0; i < count; i++) { double val = vec[i]; String number_str = String::num(ABS(val), min_decimals); - bool not_numeric = isinf(val) || isnan(val); + const bool is_finite = Math::is_finite(val); // Pad decimals out. - if (!not_numeric) { + if (is_finite) { number_str = number_str.pad_decimals(min_decimals); } @@ -4724,7 +4760,7 @@ String String::sprintf(const Array &values, bool *error) const { // Padding. Leave room for sign later if required. int pad_chars_count = val < 0 ? min_chars - 1 : min_chars; - String pad_char = (pad_with_zeros && !not_numeric) ? String("0") : String(" "); // Never pad NaN or inf with zeros + String pad_char = (pad_with_zeros && is_finite) ? String("0") : String(" "); // Never pad NaN or inf with zeros if (left_justified) { number_str = number_str.rpad(pad_chars_count, pad_char); } else { |