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add string trim_prefix trim_suffix lstrip and rstrip methods

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This commit is contained in:
bosak 2018-04-13 17:40:27 +03:00
parent ab75fae564
commit 79ecdee496
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GPG key ID: 77FE9BC2E238341C
4 changed files with 100 additions and 0 deletions
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52
core/ustring.cpp
View file

@ -2997,6 +2997,40 @@ String String::strip_escapes() const {
return substr(beg, end - beg);
}
String String::lstrip(const Vector<CharType> &p_chars) const {
int len = length();
int beg;
for (beg = 0; beg < len; beg++) {
if (p_chars.find(operator[](beg)) == -1)
break;
}
if (beg == 0)
return *this;
return substr(beg, len - beg);
}
String String::rstrip(const Vector<CharType> &p_chars) const {
int len = length();
int end;
for (end = len - 1; end >= 0; end--) {
if (p_chars.find(operator[](end)) == -1)
break;
}
if (end == len - 1)
return *this;
return substr(0, end + 1);
}
String String::simplify_path() const {
String s = *this;
@ -3448,6 +3482,24 @@ String String::pad_zeros(int p_digits) const {
return s;
}
String String::trim_prefix(const String &p_prefix) const {
String s = *this;
if (s.begins_with(p_prefix)) {
return s.substr(p_prefix.length(), s.length() - p_prefix.length());
}
return s;
}
String String::trim_suffix(const String &p_suffix) const {
String s = *this;
if (s.ends_with(p_suffix)) {
return s.substr(0, s.length() - p_suffix.length());
}
return s;
}
bool String::is_valid_integer() const {
int len = length();

4
core/ustring.h
View file

@ -137,6 +137,8 @@ public:
String insert(int p_at_pos, const String &p_string) const;
String pad_decimals(int p_digits) const;
String pad_zeros(int p_digits) const;
String trim_prefix(const String &p_prefix) const;
String trim_suffix(const String &p_suffix) const;
String lpad(int min_length, const String &character = " ") const;
String rpad(int min_length, const String &character = " ") const;
String sprintf(const Array &values, bool *error) const;
@ -188,6 +190,8 @@ public:
String dedent() const;
String strip_edges(bool left = true, bool right = true) const;
String strip_escapes() const;
String lstrip(const Vector<CharType> &p_chars) const;
String rstrip(const Vector<CharType> &p_chars) const;
String get_extension() const;
String get_basename() const;
String plus_file(const String &p_file) const;

8
core/variant_call.cpp
View file

@ -264,6 +264,8 @@ struct _VariantCall {
VCALL_LOCALMEM1R(String, right);
VCALL_LOCALMEM0R(String, dedent);
VCALL_LOCALMEM2R(String, strip_edges);
VCALL_LOCALMEM1R(String, lstrip);
VCALL_LOCALMEM1R(String, rstrip);
VCALL_LOCALMEM0R(String, get_extension);
VCALL_LOCALMEM0R(String, get_basename);
VCALL_LOCALMEM1R(String, plus_file);
@ -296,6 +298,8 @@ struct _VariantCall {
VCALL_LOCALMEM0R(String, hex_to_int);
VCALL_LOCALMEM1R(String, pad_decimals);
VCALL_LOCALMEM1R(String, pad_zeros);
VCALL_LOCALMEM1R(String, trim_prefix);
VCALL_LOCALMEM1R(String, trim_suffix);
static void _call_String_to_ascii(Variant &r_ret, Variant &p_self, const Variant **p_args) {
@ -1460,6 +1464,8 @@ void register_variant_methods() {
ADDFUNC1R(STRING, STRING, String, left, INT, "position", varray());
ADDFUNC1R(STRING, STRING, String, right, INT, "position", varray());
ADDFUNC2R(STRING, STRING, String, strip_edges, BOOL, "left", BOOL, "right", varray(true, true));
ADDFUNC1R(STRING, STRING, String, lstrip, STRING, "chars", varray());
ADDFUNC1R(STRING, STRING, String, rstrip, STRING, "chars", varray());
ADDFUNC0R(STRING, STRING, String, get_extension, varray());
ADDFUNC0R(STRING, STRING, String, get_basename, varray());
ADDFUNC1R(STRING, STRING, String, plus_file, STRING, "file", varray());
@ -1493,6 +1499,8 @@ void register_variant_methods() {
ADDFUNC0R(STRING, INT, String, hex_to_int, varray());
ADDFUNC1R(STRING, STRING, String, pad_decimals, INT, "digits", varray());
ADDFUNC1R(STRING, STRING, String, pad_zeros, INT, "digits", varray());
ADDFUNC1R(STRING, STRING, String, trim_prefix, STRING, "prefix", varray());
ADDFUNC1R(STRING, STRING, String, trim_suffix, STRING, "suffix", varray());
ADDFUNC0R(STRING, POOL_BYTE_ARRAY, String, to_ascii, varray());
ADDFUNC0R(STRING, POOL_BYTE_ARRAY, String, to_utf8, varray());

36
doc/classes/String.xml
View file

@ -490,6 +490,15 @@
Returns the string's amount of characters.
</description>
</method>
<method name="lstrip">
<return type="String">
</return>
<argument index="0" name="chars" type="String">
</argument>
<description>
Returns a copy of the string with characters removed from the left.
</description>
</method>
<method name="match">
<return type="bool">
</return>
@ -634,6 +643,15 @@
Returns the right side of the string from a given position.
</description>
</method>
<method name="rstrip">
<return type="String">
</return>
<argument index="0" name="chars" type="String">
</argument>
<description>
Returns a copy of the string with characters removed from the right.
</description>
</method>
<method name="sha256_buffer">
<return type="PoolByteArray">
</return>
@ -745,6 +763,24 @@
Converts the String (which is an array of characters) to [PoolByteArray] (which is an array of bytes). The conversion is a bit slower than to_ascii(), but supports all UTF-8 characters. Therefore, you should prefer this function over to_ascii().
</description>
</method>
<method name="trim_prefix">
<return type="String">
</return>
<argument index="0" name="prefix" type="String">
</argument>
<description>
Removes a given string from the start if it starts with it or leaves the string unchanged.
</description>
</method>
<method name="trim_suffix">
<return type="String">
</return>
<argument index="0" name="suffix" type="String">
</argument>
<description>
Removes a given string from the end if it ends with it or leaves the string unchanged.
</description>
</method>
<method name="xml_escape">
<return type="String">
</return>