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Added find_reversed and file_get_extension helpers to string.

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This commit is contained in:
Relintai 2022-02-06 13:43:56 +01:00
parent c4f0bd9538
commit 1060f85089
2 changed files with 69 additions and 0 deletions
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66
core/string.cpp
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@ -153,6 +153,62 @@ int String::find(const String &val, const int from) const {
return -1;
}
int String::find_reversed(const char val, const int from) const {
if (_size == 0) {
return -1;
}
int f;
if (from < 0) {
f = _size - 1;
} else {
f = from - 1;
}
for (int i = f; i >= 0; --i) {
if (_data[i] == val) {
return i;
}
}
return -1;
}
int String::find_reversed(const String &val, const int from) const {
if (_size == 0) {
return -1;
}
if (_size < val.size()) {
return -1;
}
int ve;
if (from < 0) {
ve = _size - val.size() - 1;
} else {
ve = from - 1;
}
for (int i = ve; i >= 0; --i) {
bool found = true;
for (int j = 0; j < val.size(); ++j) {
if (_data[i + j] != val[j]) {
found = false;
break;
}
}
if (found) {
return i;
}
}
return -1;
}
void String::get_substr(char *into_buf, const int start_index, const int len) {
ERR_FAIL_INDEX(start_index + len - 1, _size);
@ -1150,6 +1206,16 @@ String String::path_get_prev_dir() const {
return substr_index(0, seind);
}
String String::file_get_extension() const {
int dind = find_reversed('.');
if (dind == -1) {
return Stirng();
}
return substr_index(dind + 1, _size - 1);
}
void String::to_html_special_chars() {
replace("&", "&amp;");
replace("\"", "&quot;");

3
core/string.h
View File

@ -33,6 +33,8 @@ public:
void resize(const int s);
int find(const char val, const int from = 0) const;
int find(const String &val, const int from = 0) const;
int find_reversed(const char val, const int from = -1) const;
int find_reversed(const String &val, const int from = -1) const;
void get_substr(char *into_buf, const int start_index, const int len);
void get_substr_nt(char *into_buf, const int start_index, const int len);
String substr(const int start_index, const int len) const;
@ -114,6 +116,7 @@ public:
String path_get_basename() const;
String path_get_last_segment() const;
String path_get_prev_dir() const;
String file_get_extension() const;
void to_html_special_chars();
void from_html_special_chars();