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-rw-r--r--core/ustring.cpp173
1 files changed, 145 insertions, 28 deletions
diff --git a/core/ustring.cpp b/core/ustring.cpp
index 3a0708851e..ceafe209ea 100644
--- a/core/ustring.cpp
+++ b/core/ustring.cpp
@@ -393,7 +393,7 @@ bool String::operator<(const CharType *p_str) const {
return false; //should never reach here anyway
}
-bool String::operator<=(String p_str) const {
+bool String::operator<=(const String &p_str) const {
return (*this < p_str) || (*this == p_str);
}
@@ -426,7 +426,7 @@ bool String::operator<(const char *p_str) const {
return false; //should never reach here anyway
}
-bool String::operator<(String p_str) const {
+bool String::operator<(const String &p_str) const {
return operator<(p_str.c_str());
}
@@ -734,7 +734,7 @@ Vector<String> String::split_spaces() const {
return ret;
}
-Vector<String> String::split(const String &p_splitter, bool p_allow_empty) const {
+Vector<String> String::split(const String &p_splitter, bool p_allow_empty, int p_maxsplit) const {
Vector<String> ret;
int from = 0;
@@ -745,8 +745,21 @@ Vector<String> String::split(const String &p_splitter, bool p_allow_empty) const
int end = find(p_splitter, from);
if (end < 0)
end = len;
- if (p_allow_empty || (end > from))
- ret.push_back(substr(from, end - from));
+ if (p_allow_empty || (end > from)) {
+ if (p_maxsplit <= 0)
+ ret.push_back(substr(from, end - from));
+ else if (p_maxsplit > 0) {
+
+ // Put rest of the string and leave cycle.
+ if (p_maxsplit == ret.size()) {
+ ret.push_back(substr(from, len));
+ break;
+ }
+
+ // Otherwise, push items until positive limit is reached.
+ ret.push_back(substr(from, end - from));
+ }
+ }
if (end == len)
break;
@@ -889,7 +902,10 @@ String String::to_upper() const {
for (int i = 0; i < upper.size(); i++) {
- upper[i] = _find_upper(upper[i]);
+ const char s = upper[i];
+ const char t = _find_upper(s);
+ if (s != t) // avoid copy on write
+ upper[i] = t;
}
return upper;
@@ -897,20 +913,17 @@ String String::to_upper() const {
String String::to_lower() const {
- String upper = *this;
+ String lower = *this;
- for (int i = 0; i < upper.size(); i++) {
+ for (int i = 0; i < lower.size(); i++) {
- upper[i] = _find_lower(upper[i]);
+ const char s = lower[i];
+ const char t = _find_lower(s);
+ if (s != t) // avoid copy on write
+ lower[i] = t;
}
- return upper;
-}
-
-int String::length() const {
-
- int s = size();
- return s ? (s - 1) : 0; // length does not include zero
+ return lower;
}
const CharType *String::c_str() const {
@@ -2162,7 +2175,7 @@ Vector<uint8_t> String::sha256_buffer() const {
return ret;
}
-String String::insert(int p_at_pos, String p_string) const {
+String String::insert(int p_at_pos, const String &p_string) const {
if (p_at_pos < 0)
return *this;
@@ -2190,10 +2203,15 @@ String String::substr(int p_from, int p_chars) const {
p_chars = length() - p_from;
}
+ if (p_from == 0 && p_chars >= length()) {
+
+ return String(*this);
+ }
+
return String(&c_str()[p_from], p_chars);
}
-int String::find_last(String p_str) const {
+int String::find_last(const String &p_str) const {
int pos = -1;
int findfrom = 0;
@@ -2206,19 +2224,21 @@ int String::find_last(String p_str) const {
return pos;
}
-int String::find(String p_str, int p_from) const {
+
+int String::find(const String &p_str, int p_from) const {
if (p_from < 0)
return -1;
- int src_len = p_str.length();
+ const int src_len = p_str.length();
- int len = length();
+ const int len = length();
if (src_len == 0 || len == 0)
return -1; //wont find anything!
const CharType *src = c_str();
+ const CharType *str = p_str.c_str();
for (int i = p_from; i <= (len - src_len); i++) {
@@ -2233,7 +2253,7 @@ int String::find(String p_str, int p_from) const {
return -1;
};
- if (src[read_pos] != p_str[j]) {
+ if (src[read_pos] != str[j]) {
found = false;
break;
}
@@ -2246,6 +2266,62 @@ int String::find(String p_str, int p_from) const {
return -1;
}
+int String::find(const char *p_str, int p_from) const {
+
+ if (p_from < 0)
+ return -1;
+
+ const int len = length();
+
+ if (len == 0)
+ return -1; //wont find anything!
+
+ const CharType *src = c_str();
+
+ int src_len = 0;
+ while (p_str[src_len] != '\0')
+ src_len++;
+
+ if (src_len == 1) {
+
+ const char needle = p_str[0];
+
+ for (int i = p_from; i < len; i++) {
+
+ if (src[i] == needle) {
+ return i;
+ }
+ }
+
+ } else {
+
+ for (int i = p_from; i <= (len - src_len); i++) {
+
+ bool found = true;
+ for (int j = 0; j < src_len; j++) {
+
+ int read_pos = i + j;
+
+ if (read_pos >= len) {
+
+ ERR_PRINT("read_pos>=len");
+ return -1;
+ };
+
+ if (src[read_pos] != p_str[j]) {
+ found = false;
+ break;
+ }
+ }
+
+ if (found)
+ return i;
+ }
+ }
+
+ return -1;
+}
+
int String::findmk(const Vector<String> &p_keys, int p_from, int *r_key) const {
if (p_from < 0)
@@ -2300,7 +2376,7 @@ int String::findmk(const Vector<String> &p_keys, int p_from, int *r_key) const {
return -1;
}
-int String::findn(String p_str, int p_from) const {
+int String::findn(const String &p_str, int p_from) const {
if (p_from < 0)
return -1;
@@ -2341,7 +2417,7 @@ int String::findn(String p_str, int p_from) const {
return -1;
}
-int String::rfind(String p_str, int p_from) const {
+int String::rfind(const String &p_str, int p_from) const {
// establish a limit
int limit = length() - p_str.length();
@@ -2387,7 +2463,7 @@ int String::rfind(String p_str, int p_from) const {
return -1;
}
-int String::rfindn(String p_str, int p_from) const {
+int String::rfindn(const String &p_str, int p_from) const {
// establish a limit
int limit = length() - p_str.length();
@@ -2687,7 +2763,7 @@ String String::format(const Variant &values, String placeholder) const {
return new_string;
}
-String String::replace(String p_key, String p_with) const {
+String String::replace(const String &p_key, const String &p_with) const {
String new_string;
int search_from = 0;
@@ -2700,12 +2776,43 @@ String String::replace(String p_key, String p_with) const {
search_from = result + p_key.length();
}
+ if (search_from == 0) {
+
+ return *this;
+ }
+
new_string += substr(search_from, length() - search_from);
return new_string;
}
-String String::replace_first(String p_key, String p_with) const {
+String String::replace(const char *p_key, const char *p_with) const {
+
+ String new_string;
+ int search_from = 0;
+ int result = 0;
+
+ while ((result = find(p_key, search_from)) >= 0) {
+
+ new_string += substr(search_from, result - search_from);
+ new_string += p_with;
+ int k = 0;
+ while (p_key[k] != '\0')
+ k++;
+ search_from = result + k;
+ }
+
+ if (search_from == 0) {
+
+ return *this;
+ }
+
+ new_string += substr(search_from, length() - search_from);
+
+ return new_string;
+}
+
+String String::replace_first(const String &p_key, const String &p_with) const {
String new_string;
int search_from = 0;
@@ -2719,11 +2826,16 @@ String String::replace_first(String p_key, String p_with) const {
break;
}
+ if (search_from == 0) {
+
+ return *this;
+ }
+
new_string += substr(search_from, length() - search_from);
return new_string;
}
-String String::replacen(String p_key, String p_with) const {
+String String::replacen(const String &p_key, const String &p_with) const {
String new_string;
int search_from = 0;
@@ -2736,6 +2848,11 @@ String String::replacen(String p_key, String p_with) const {
search_from = result + p_key.length();
}
+ if (search_from == 0) {
+
+ return *this;
+ }
+
new_string += substr(search_from, length() - search_from);
return new_string;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-24 09:23:18 +0000