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Added rsplit() for String class

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Docs updated
This commit is contained in:
Dmitry Koteroff 2017-12-15 22:23:58 +03:00
parent 7767d89c45
commit 6fe415ca7f
4 changed files with 57 additions and 0 deletions
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40
core/ustring.cpp
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@ -770,6 +770,46 @@ Vector<String> String::split(const String &p_splitter, bool p_allow_empty, int p
return ret;
}
Vector<String> String::rsplit(const String &p_splitter, bool p_allow_empty, int p_maxsplit) const {
Vector<String> ret;
const int len = length();
int from = len;
while (true) {
int end = rfind(p_splitter, from);
if (end < 0)
end = 0;
if (p_allow_empty || (end < from)) {
const String str = substr(end > 0 ? end + p_splitter.length() : end, end > 0 ? from - end : from + 2);
if (p_maxsplit <= 0) {
ret.push_back(str);
} else if (p_maxsplit > 0) {
// Put rest of the string and leave cycle.
if (p_maxsplit == ret.size()) {
ret.push_back(substr(0, from + 2));
break;
}
// Otherwise, push items until positive limit is reached.
ret.push_back(str);
}
}
if (end == 0)
break;
from = end - p_splitter.length();
}
ret.invert();
return ret;
}
Vector<float> String::split_floats(const String &p_splitter, bool p_allow_empty) const {
Vector<float> ret;

1
core/ustring.h
View file

@ -163,6 +163,7 @@ public:
String get_slicec(CharType p_splitter, int p_slice) const;
Vector<String> split(const String &p_splitter, bool p_allow_empty = true, int p_maxsplit = 0) const;
Vector<String> rsplit(const String &p_splitter, bool p_allow_empty = true, int p_maxsplit = 0) const;
Vector<String> split_spaces() const;
Vector<float> split_floats(const String &p_splitter, bool p_allow_empty = true) const;
Vector<float> split_floats_mk(const Vector<String> &p_splitters, bool p_allow_empty = true) const;

2
core/variant_call.cpp
View file

@ -255,6 +255,7 @@ struct _VariantCall {
VCALL_LOCALMEM2R(String, insert);
VCALL_LOCALMEM0R(String, capitalize);
VCALL_LOCALMEM3R(String, split);
VCALL_LOCALMEM3R(String, rsplit);
VCALL_LOCALMEM2R(String, split_floats);
VCALL_LOCALMEM0R(String, to_upper);
VCALL_LOCALMEM0R(String, to_lower);
@ -1447,6 +1448,7 @@ void register_variant_methods() {
ADDFUNC2R(STRING, STRING, String, insert, INT, "position", STRING, "what", varray());
ADDFUNC0R(STRING, STRING, String, capitalize, varray());
ADDFUNC3R(STRING, POOL_STRING_ARRAY, String, split, STRING, "divisor", BOOL, "allow_empty", INT, "maxsplit", varray(true, 0));
ADDFUNC3R(STRING, POOL_STRING_ARRAY, String, rsplit, STRING, "divisor", BOOL, "allow_empty", INT, "maxsplit", varray(true, 0));
ADDFUNC2R(STRING, POOL_REAL_ARRAY, String, split_floats, STRING, "divisor", BOOL, "allow_empty", varray(true));
ADDFUNC0R(STRING, STRING, String, to_upper, varray());

14
doc/classes/String.xml
View file

@ -669,6 +669,20 @@
If [code]maxsplit[/code] is given, at most maxsplit number of splits occur, and the remainder of the string is returned as the final element of the list (thus, the list will have at most maxsplit+1 elements)
</description>
</method>
<method name="rsplit">
<return type="PoolStringArray">
</return>
<argument index="0" name="divisor" type="String">
</argument>
<argument index="1" name="allow_empty" type="bool" default="True">
</argument>
<argument index="2" name="maxsplit" type="int" default="0">
</argument>
<description>
Splits the string by a [code]divisor[/code] string and returns an array of the substrings, starting from right. Example "One,Two,Three" will return ["One","Two","Three"] if split by ",".
If [code]maxsplit[/code] is specified, then it is number of splits to do, default is 0 which splits all the items.
</description>
</method>
<method name="split_floats">
<return type="PoolRealArray">
</return>