Non-owning view over a range of characters with UTF Encoding. More...

#include <StringView.h>

Public Types
enum class	Comparison { Smaller = -1 , Equals = 0 , Bigger = 1 }
	Result of ordering comparison done by StringView::compare. More...

Public Member Functions
constexpr	StringView ()
	Construct an emtpy StringView. More...

constexpr	StringView (Span< const char > textSpan, bool nullTerm, StringEncoding encoding)
	Construct a StringView from a Span of bytes. More...

template<size_t N>
constexpr	StringView (const char(&text)[N])
	Constructs a StringView with a null terminated string terminal. More...

template<size_t N>
constexpr	StringView (const wchar_t(&text)[N])
	Constructs an UTF16 StringView with a null terminated wide-string terminal. More...

constexpr	StringView (Span< const wchar_t > textSpan, bool nullTerm)
	Construct an UTF16 StringView from a Span of bytes. More...

constexpr StringEncoding	getEncoding () const
	Get encoding of this StringView. More...

constexpr const char *	bytesWithoutTerminator () const
	Directly access the memory of this StringView. More...

constexpr const char *	bytesIncludingTerminator () const
	Directly access the memory of this null terminated-StringView. More...

auto	getNullTerminatedNative () const
	Directly access the memory of this null terminated-StringView. More...

constexpr Span< const char >	toCharSpan () const SC_LANGUAGE_LIFETIME_BOUND
	Obtain a `const char` Span from this StringView. More...

Span< const uint8_t >	toBytesSpan () const SC_LANGUAGE_LIFETIME_BOUND
	Obtain a `const uint8_t` Span from this StringView. More...

Comparison	compare (StringView other) const
	Ordering comparison between non-normalized StringView (operates on code points, not on utf graphemes) More...

bool	operator< (StringView other) const
	Ordering operator for StringView using StringView::compare. More...

template<typename Func >
constexpr auto	withIterator (Func &&func) const
	Call given lambda with one of StringIteratorASCII, StringIteratorUTF8, StringIteratorUTF16 depending on encoding. More...

template<typename StringIterator >
constexpr StringIterator	getIterator () const
	Returns a StringIterator from current StringView. More...

constexpr bool	operator!= (StringView other) const
	Compare this StringView with another StringView for inequality. More...

constexpr bool	operator== (StringView other) const
	Compare this StringView with another StringView for equality. More...

constexpr bool	fullyOverlaps (StringView other, size_t &commonOverlappingPoints) const
	Check if this StringView is equal to other StringView (operates on code points, not on utf graphemes). More...

constexpr bool	isEmpty () const
	Check if StringView is empty. More...

constexpr bool	isNullTerminated () const
	Check if StringView is immediately followed by a null termination character. More...

constexpr size_t	sizeInBytes () const
	Get size of the StringView in bytes. More...

constexpr size_t	sizeInBytesIncludingTerminator () const
	Get size of the StringView in bytes, including null terminator. More...

bool	endsWithAnyOf (Span< const StringCodePoint > codePoints) const
	Check if StringView ends with any utf code point in the given span. More...

bool	startsWithAnyOf (Span< const StringCodePoint > codePoints) const
	Check if StringView starts with any utf code point in the given span. More...

bool	startsWith (const StringView str) const
	Check if StringView starts with another StringView. More...

bool	endsWith (const StringView str) const
	Check if StringView ends with another StringView. More...

bool	containsString (const StringView str) const
	Check if StringView contains another StringView with compatible encoding. More...

bool	splitAfter (const StringView stringToMatch, StringView &remainingAfterSplit) const
	Returns the remaining part of the string after matching stringToMatch. More...

bool	splitBefore (const StringView stringToMatch, StringView &stringBeforeSplit) const
	Returns the part of the string before matching stringToMatch. More...

bool	containsCodePoint (StringCodePoint c) const
	Check if StringView contains given utf code point. More...

constexpr bool	hasCompatibleEncoding (StringView str) const
	Check if current StringView has compatible encoding with str. More...

StringView	sliceStartEnd (size_t start, size_t end) const
	Get slice `[start, end)` starting at offset `start` and ending at `end` (measured in utf code points) More...

StringView	sliceStartLength (size_t start, size_t length) const
	Get slice `[start, start+length]` starting at offset `start` and of `length` code points. More...

StringView	sliceStart (size_t offset) const
	Get slice `[offset, end]` measured in utf code points. More...

StringView	sliceEnd (size_t offset) const
	Get slice `[end-offset, end]` measured in utf code points. More...

StringView	trimEndAnyOf (Span< const StringCodePoint > codePoints) const
	Returns a shortened StringView removing ending utf code points matching the `codePoints` span. More...

StringView	trimStartAnyOf (Span< const StringCodePoint > codePoints) const
	Returns a shortened StringView removing starting utf code points matching the `codePoints` span. More...

StringView	trimAnyOf (Span< const StringCodePoint > codePoints) const
	Returns a shortened StringView removing starting and ending utf code points inside the `codePoints` span. More...

StringView	trimWhiteSpaces () const
	Returns a shortened StringView without starting/ending utf code points inside {'\r', '\n', '\t', ' '}. More...

constexpr StringView	sliceStartBytes (size_t start) const
	Returns a shortened StringView from current cutting the first `start` bytes. More...

constexpr StringView	sliceStartEndBytes (size_t start, size_t end) const
	Returns a shortened StringView taking a slice from `start` to `end` expressed in bytes. More...

constexpr StringView	sliceStartLengthBytes (size_t start, size_t length) const
	Returns a shortened StringView taking a slice from `start` ending at `start`+`length` bytes. More...

bool	isIntegerNumber () const
	If the current view is an integer number, returns true. More...

bool	isFloatingNumber () const
	Check if StringView can be parsed as an floating point number. More...

bool	parseInt32 (int32_t &value) const
	Try parsing current StringView as a 32 bit integer. More...

bool	parseFloat (float &value) const
	Try parsing current StringView as a floating point number. More...

bool	parseDouble (double &value) const
	Try parsing current StringView as a double precision floating point number. More...

template<typename Type >
constexpr SC::StringIteratorASCII	getIterator (identity< Type >) const

template<typename StringIterator >
SC::StringView	fromIterators (StringIterator from, StringIterator to)

template<typename StringIterator >
SC::StringView	fromIteratorUntilEnd (StringIterator it)

template<typename StringIterator >
constexpr SC::StringView	fromIteratorFromStart (StringIterator it)

Static Public Member Functions
static StringView	fromNullTerminated (const char *text, StringEncoding encoding)
	Constructs a StringView from a null-terminated C-String. More...

template<typename Func >
static constexpr auto	withIterators (StringView s1, StringView s2, Func &&func)
	Call given lambda with one of StringIteratorASCII, StringIteratorUTF8, StringIteratorUTF16 depending on encoding. More...

template<typename StringIterator >
static StringView	fromIterators (StringIterator from, StringIterator to)
	Returns a StringView from two iterators. The from iterator will be shortened until the start of to. More...

template<typename StringIterator >
static StringView	fromIteratorUntilEnd (StringIterator it)
	Returns a section of a string, from `it` to end of StringView. More...

template<typename StringIterator >
static constexpr StringView	fromIteratorFromStart (StringIterator it)
	Returns a section of a string, from start of StringView to `it`. More...

Detailed Description

Non-owning view over a range of characters with UTF Encoding.

It additional also holds the SC::StringEncoding information (ASCII, UTF8 or UTF16). During construction the encoding information and the null-termination state must be specified. All methods are const because it's not possible to modify a string with it.
Example (Construct)

StringView s("asd");
SC_ASSERT_RELEASE(s.sizeInBytes() == 3);
SC_ASSERT_RELEASE(s.isNullTerminated());

Example (Construct from null terminated string)

const char* someString = "asdf";
// construct only "asd", not null terminated (as there is 'f' after 'd')
StringView s({someString, strlen(asd) - 1}, false, StringEncoding::Ascii);
SC_ASSERT_RELEASE(s.sizeInBytes() == 3);
SC_ASSERT_RELEASE(not s.isNullTerminated());
//
// ... or
StringView s2 = StringView::fromNullTerminated(s, StringEncoding::Ascii); // s2 == "asdf"

Member Enumeration Documentation

◆ Comparison

enum class SC::StringView::Comparison

strong

Result of ordering comparison done by StringView::compare.

Constructor & Destructor Documentation

◆ StringView() [1/5]

constexpr SC::StringView::StringView ( )

constexpr

Construct an emtpy StringView.

◆ StringView() [2/5]

constexpr SC::StringView::StringView	(	Span< const char >	textSpan,
		bool	nullTerm,
		StringEncoding	encoding
	)

constexpr

Construct a StringView from a Span of bytes.

Parameters

textSpan	The span containing the text EXCLUDING eventual null terminator
nullTerm	`true` if a null terminator code point is expected to be found after Span. On ASCII and UTF8 this is 1 byte, on UTF16 it must be 2 bytes.
encoding	The encoding of the text contained in this StringView

◆ StringView() [3/5]

template<SC::size_t N>

constexpr SC::StringView::StringView ( const char(&) text[N] )

constexpr

Constructs a StringView with a null terminated string terminal.

Template Parameters

N	Number of characters in text string literal

Parameters

text	The Null terminated string literal

◆ StringView() [4/5]

template<size_t N>

constexpr SC::StringView::StringView ( const wchar_t(&) text[N] )

constexpr

Constructs an UTF16 StringView with a null terminated wide-string terminal.

Template Parameters

N

Parameters

text	The Null terminated wide-string literal

◆ StringView() [5/5]

constexpr SC::StringView::StringView	(	Span< const wchar_t >	textSpan,
		bool	nullTerm
	)

constexpr

Construct an UTF16 StringView from a Span of bytes.

Parameters

textSpan	The span containing the text EXCLUDING eventual null terminator
nullTerm	`true` if a null terminator code point is expected to be found after Span (two bytes on UTF16)

Member Function Documentation

◆ bytesIncludingTerminator()

constexpr const char * SC::StringView::bytesIncludingTerminator ( ) const

constexpr

Directly access the memory of this null terminated-StringView.

Returns: Pointer to start of StringView memory

Warning: This method will assert if string is not null terminated.

◆ bytesWithoutTerminator()

constexpr const char * SC::StringView::bytesWithoutTerminator ( ) const

inlineconstexpr

Directly access the memory of this StringView.

Returns: Pointer to start of StringView memory

◆ compare()

Comparison SC::StringView::compare ( StringView other ) const

Ordering comparison between non-normalized StringView (operates on code points, not on utf graphemes)

Parameters

other The string being compared to current one

Returns: Result of the comparison (smaller, equals or bigger)

Example:

// àèìòù (1 UTF16-LE sequence, 2 UTF8 sequence)
SC_ASSERT_RELEASE("\xc3\xa0\xc3\xa8\xc3\xac\xc3\xb2\xc3\xb9"_u8.compare(
                    "\xe0\x0\xe8\x0\xec\x0\xf2\x0\xf9\x0"_u16) == StringView::Comparison::Equals);
 
// 日本語語語 (1 UTF16-LE sequence, 3 UTF8 sequence)
StringView stringUtf8  = StringView("\xe6\x97\xa5\xe6\x9c\xac\xe8\xaa\x9e\xe8\xaa\x9e\xe8\xaa\x9e"_u8);
StringView stringUtf16 = StringView("\xE5\x65\x2C\x67\x9E\x8a\x9E\x8a\x9E\x8a\x00"_u16); // LE
// Comparisons are on code points NOT grapheme clusters!!
SC_ASSERT_RELEASE(stringUtf8.compare(stringUtf16) == StringView::Comparison::Equals);
SC_ASSERT_RELEASE(stringUtf16.compare(stringUtf8) == StringView::Comparison::Equals);
SC_ASSERT_RELEASE(stringUtf8 == stringUtf16);
SC_ASSERT_RELEASE(stringUtf16 == stringUtf8);

◆ containsCodePoint()

bool SC::StringView::containsCodePoint ( StringCodePoint c ) const

Check if StringView contains given utf code point.

Parameters

c	The utf code point to check against

Returns: Returns true if this StringView contains code point c

◆ containsString()

bool SC::StringView::containsString ( const StringView str ) const

Check if StringView contains another StringView with compatible encoding.

Parameters

str	The other StringView to check with current

Returns: Returns true if this StringView contains str

Warning: This method will assert if strings have non compatible encoding. It can be checked with StringView::hasCompatibleEncoding (str) == true

Example:

StringView asd = "123 456";
SC_TRY(asd.containsString("123"));
SC_TRY(asd.containsString("456"));
SC_TRY(not asd.containsString("124"));
SC_TRY(not asd.containsString("4567"));

◆ endsWith()

bool SC::StringView::endsWith ( const StringView str ) const

Check if StringView ends with another StringView.

Parameters

str	The other StringView to check with current

Returns: Returns true if this StringView ends with str

Example:

SC_TEST_EXPECT("123 456".endsWith("456"));

SC_TEST_EXPECT

#define SC_TEST_EXPECT(e)

Records a test expectation (eventually aborting or breaking o n failed test)

Definition: Testing.h:113

SC::StringView::endsWith

bool endsWith(const StringView str) const

Check if StringView ends with another StringView.

◆ endsWithAnyOf()

bool SC::StringView::endsWithAnyOf ( Span< const StringCodePoint > codePoints ) const

Check if StringView ends with any utf code point in the given span.

Parameters

codePoints The utf code points to check against

Returns: Returns true if this StringView ends with any code point inside codePoints

Example:

SC_TEST_EXPECT("123 456".endsWithAnyOf({'a', '6'})); // '6' will match

SC::StringView::endsWithAnyOf

bool endsWithAnyOf(Span< const StringCodePoint > codePoints) const

Check if StringView ends with any utf code point in the given span.

◆ fromIteratorFromStart()

template<typename StringIterator >

static constexpr StringView SC::StringView::fromIteratorFromStart ( StringIterator it )

staticconstexpr

Returns a section of a string, from start of StringView to it.

Template Parameters

StringIterator One among StringIteratorASCII, StringIteratorUTF8 and StringIteratorUTF16

Parameters

it	The iterator pointing at the start of the specified portion of StringView.

Returns: Another StringView pointing at characters from start of StringView until it

◆ fromIterators()

template<typename StringIterator >

static StringView SC::StringView::fromIterators	(	StringIterator	from,
		StringIterator	to
	)

static

Returns a StringView from two iterators. The from iterator will be shortened until the start of to.

Returns a StringView starting at from and ending at to.

Template Parameters

StringIterator One among StringIteratorASCII, StringIteratorUTF8 and StringIteratorUTF16

Parameters

from	Indicates where the StringView will start. The from iterator will be shortened until the start of to.
to	Indicates where the StringView will end.

Returns: A StringView starting at from and ending at to.

Note: If from is > to an empty StringView will be returned

◆ fromIteratorUntilEnd()

template<typename StringIterator >

static StringView SC::StringView::fromIteratorUntilEnd ( StringIterator it )

static

Returns a section of a string, from it to end of StringView.

Template Parameters

StringIterator One among StringIteratorASCII, StringIteratorUTF8 and StringIteratorUTF16

Parameters

it	The iterator pointing at the start of the specified portion of StringView.

Returns: Another StringView pointing at characters from it up to StringView end

◆ fromNullTerminated()

static StringView SC::StringView::fromNullTerminated	(	const char *	text,
		StringEncoding	encoding
	)

static

Constructs a StringView from a null-terminated C-String.

Parameters

text	The null-terminated C-String
encoding	The encoding of the text contained in this StringView

Returns: The StringView containing text with given encoding

◆ fullyOverlaps()

constexpr bool SC::StringView::fullyOverlaps	(	StringView	other,
		size_t &	commonOverlappingPoints
	)		const

constexpr

Check if this StringView is equal to other StringView (operates on code points, not on utf graphemes).

Returns the number of code points that are the same in both StringView-s.

Parameters

other	The StringView to be compared to
commonOverlappingPoints	number of equal code points in both StringView

Returns: true if the two StringViews are equal

Example:

StringView asd = "123 456"_a8;
size_t overlapPoints = 0;
SC_TEST_EXPECT(not asd.fullyOverlaps("123___", overlapPoints) and overlapPoints == 3);

◆ getEncoding()

constexpr StringEncoding SC::StringView::getEncoding ( ) const

inlineconstexpr

Get encoding of this StringView.

Returns: This StringView encoding

◆ getIterator()

template<typename StringIterator >

constexpr StringIterator SC::StringView::getIterator

constexpr

Returns a StringIterator from current StringView.

Template Parameters

StringIterator can be StringIteratorASCII, StringIteratorUTF8 or StringIteratorUTF16

Returns: StringIterator representing the StringView

◆ getNullTerminatedNative()

auto SC::StringView::getNullTerminatedNative ( ) const

inline

Directly access the memory of this null terminated-StringView.

Returns: Pointer to start of StringView memory. On Windows return type will be wchar_t. On other platforms return type will be char.

Warning: This method will assert that the string is null terminated. On Windows this will assert that encoding is UTF16. On other platforms this will assert that encoding is UTF8 or ASCII.

◆ hasCompatibleEncoding()

constexpr bool SC::StringView::hasCompatibleEncoding ( StringView str ) const

constexpr

Check if current StringView has compatible encoding with str.

This means checking if two encodings have the same utf unit size.

Parameters

str	The other StringView to check with current

Returns: true if this StringView has compatible encoding with str

◆ isEmpty()

constexpr bool SC::StringView::isEmpty ( ) const

inlineconstexpr

Check if StringView is empty.

Returns: true if string is empty

◆ isFloatingNumber()

bool SC::StringView::isFloatingNumber ( ) const

Check if StringView can be parsed as an floating point number.

Returns: true if StringView is a floating point number.

Example:

SC_TEST_EXPECT("-34."_a8.isFloatingNumber());
SC_TEST_EXPECT("-34.0"_a8.isFloatingNumber());
SC_TEST_EXPECT("0.34"_a8.isFloatingNumber());
SC_TEST_EXPECT(not "+12$"_a8.isFloatingNumber());
SC_TEST_EXPECT(not "$+12"_a8.isFloatingNumber());
SC_TEST_EXPECT(not "+$12"_a8.isFloatingNumber());

◆ isIntegerNumber()

bool SC::StringView::isIntegerNumber ( ) const

If the current view is an integer number, returns true.

Check if StringView can be parsed as an integer number.

Returns: true if StringView is an integer number.

Example:

SC_TEST_EXPECT("-34"_a8.isIntegerNumber());
SC_TEST_EXPECT("+12"_a8.isIntegerNumber());
SC_TEST_EXPECT(not "+12$"_a8.isIntegerNumber());

◆ isNullTerminated()

constexpr bool SC::StringView::isNullTerminated ( ) const

inlineconstexpr

Check if StringView is immediately followed by a null termination character.

Returns: true if StringView is immediately followed by a null termination character

◆ operator!=()

constexpr bool SC::StringView::operator!= ( StringView other ) const

inlineconstexpr

Compare this StringView with another StringView for inequality.

Parameters

other StringView to be compared with current one

Returns: 'true' if the two StringView are different

◆ operator<()

bool SC::StringView::operator< ( StringView other ) const

inline

Ordering operator for StringView using StringView::compare.

Parameters

other The string being compared to current one

Returns: true if current string is Comparison::Smaller than other

Example:

StringView sv[3] = {
    StringView("3"),
    StringView("1"),
    StringView("2"),
};
Algorithms::bubbleSort(sv, sv + 3, [](StringView a, StringView b) { return a < b; });
SC_TEST_EXPECT(sv[0] == "1");
SC_TEST_EXPECT(sv[1] == "2");
SC_TEST_EXPECT(sv[2] == "3");

◆ operator==()

constexpr bool SC::StringView::operator== ( StringView other ) const

constexpr

Compare this StringView with another StringView for equality.

Parameters

other StringView to be compared with current one

Returns: 'true' if the two StringView are the same

◆ parseDouble()

bool SC::StringView::parseDouble ( double & value ) const

Try parsing current StringView as a double precision floating point number.

Parameters

value Will receive the parsed double precision floating point number, if function returns true.

Returns: true if the StringView has been successfully parsed as a double precision floating point number.

Example:

StringView other("12.342321");
double    value;
if(other.parseDouble(value))
{
    // ... do something with value
}

◆ parseFloat()

bool SC::StringView::parseFloat ( float & value ) const

Try parsing current StringView as a floating point number.

Parameters

value Will receive the parsed floating point number, if function returns true.

Returns: true if the StringView has been successfully parsed as a floating point number.

Example:

StringView other("12.34");
float    value;
if(other.parseFloat(value))
{
    // ... do something with value
}

◆ parseInt32()

bool SC::StringView::parseInt32 ( int32_t & value ) const

Try parsing current StringView as a 32 bit integer.

Parameters

value Will receive the parsed 32 bit integer, if function returns true.

Returns: true if the StringView has been successfully parsed as a 32 bit integer.

Example:

StringView other("123");
int32_t    value;
if(other.parseInt32(value))
{
    // ... do something with value
}

◆ sizeInBytes()

constexpr size_t SC::StringView::sizeInBytes ( ) const

inlineconstexpr

Get size of the StringView in bytes.

Returns: Size in bytes of StringView

◆ sizeInBytesIncludingTerminator()

constexpr SC::size_t SC::StringView::sizeInBytesIncludingTerminator ( ) const

constexpr

Get size of the StringView in bytes, including null terminator.

Returns: Size in bytes of StringView including null terminator (2 bytes on UTF16)

Warning: This method can be called only on StringView that are null terminated. This means that it will Assert if this StringView::isNullTerminated returns false

◆ sliceEnd()

StringView SC::StringView::sliceEnd ( size_t offset ) const

Get slice [end-offset, end] measured in utf code points.

Parameters

offset The initial code point where the slice starts

Returns: The sliced StringView [end-offset, end]

Example:

StringView str = "123_567";

SC_TEST_EXPECT(str.sliceEnd(4) == "123");

◆ sliceStart()

StringView SC::StringView::sliceStart ( size_t offset ) const

Get slice [offset, end] measured in utf code points.

Parameters

offset The initial code point where the slice starts

Returns: The sliced StringView [offset, end]

Example:

StringView str = "123_567";

SC_TEST_EXPECT(str.sliceStart(4) == "567");

◆ sliceStartBytes()

constexpr SC::StringView SC::StringView::sliceStartBytes ( size_t start ) const

constexpr

Returns a shortened StringView from current cutting the first start bytes.

Parameters

start Offset in bytes where the slice starts.

Returns: A sliced StringView starting at start bytes offset

◆ sliceStartEnd()

StringView SC::StringView::sliceStartEnd	(	size_t	start,
		size_t	end
	)		const

Get slice [start, end) starting at offset start and ending at end (measured in utf code points)

Parameters

start	The initial code point where the slice starts
end	One after the final code point where the slice ends

Returns: The [start, end) StringView slice

Example:

StringView str = "123_567";
SC_TEST_EXPECT(str.sliceStartEnd(0, 3) == "123");
SC_TEST_EXPECT(str.sliceStartEnd(4, 7) == "567");

◆ sliceStartEndBytes()

constexpr SC::StringView SC::StringView::sliceStartEndBytes	(	size_t	start,
		size_t	end
	)		const

constexpr

Returns a shortened StringView taking a slice from start to end expressed in bytes.

Parameters

start	Offset in bytes where the slice will start.
end	Offset in bytes where the slice will end.

Returns: A sliced StringView starting at start bytes offset and ending at end bytes offset.

◆ sliceStartLength()

StringView SC::StringView::sliceStartLength	(	size_t	start,
		size_t	length
	)		const

Get slice [start, start+length] starting at offset start and of length code points.

Parameters

start	The initial code point where the slice starts
length	One after the final code point where the slice ends

Returns: The [start, start+length] StringView slice

Example:

StringView str = "123_567";
SC_TEST_EXPECT(str.sliceStartLength(7, 0) == "");
SC_TEST_EXPECT(str.sliceStartLength(0, 3) == "123");

◆ sliceStartLengthBytes()

constexpr SC::StringView SC::StringView::sliceStartLengthBytes	(	size_t	start,
		size_t	length
	)		const

constexpr

Returns a shortened StringView taking a slice from start ending at start+length bytes.

Parameters

start	Offset in bytes where the slice will start.
length	Length in bytes from `start` where the slice will end.

Returns: A sliced StringView starting at start bytes offset and ending at start+length bytes offset.

◆ splitAfter()

bool SC::StringView::splitAfter	(	const StringView	stringToMatch,
		StringView &	remainingAfterSplit
	)		const

Returns the remaining part of the string after matching stringToMatch.

Parameters

stringToMatch	String to match inside the source string
remainingAfterSplit	Portion of this StringView AFTER first match of stringToMatch (excluding the match)

Returns: Returns true if stringToMatch has been found and split has been written to remainingAfterSplit

Example:

StringView str("KEY = VALUE");
StringView split;
SC_TEST_EXPECT(str.splitAfter(" = ", split));
SC_TEST_EXPECT(split == "VALUE");

◆ splitBefore()

bool SC::StringView::splitBefore	(	const StringView	stringToMatch,
		StringView &	stringBeforeSplit
	)		const

Returns the part of the string before matching stringToMatch.

Parameters

stringToMatch	String to match inside the source string
stringBeforeSplit	Portion of this StringView BEFORE first match of stringToMatch (excluding the match)

Returns: Returns true if stringToMatch has been found and split has been written to remainingAfterSplit

Example:

StringView str("KEY = VALUE");
StringView split;
SC_TEST_EXPECT(str.splitBefore(" = ", split));
SC_TEST_EXPECT(split == "KEY");

◆ startsWith()

bool SC::StringView::startsWith ( const StringView str ) const

Check if StringView starts with another StringView.

Parameters

str	The other StringView to check with current

Returns: Returns true if this StringView starts with str

Example:

SC_TEST_EXPECT("123 456".startsWith("123"));

SC::StringView::startsWith

bool startsWith(const StringView str) const

Check if StringView starts with another StringView.

◆ startsWithAnyOf()

bool SC::StringView::startsWithAnyOf ( Span< const StringCodePoint > codePoints ) const

Check if StringView starts with any utf code point in the given span.

Parameters

codePoints The utf code points to check against

Returns: Returns true if this StringView starts with any code point inside codePoints

Example:

SC_TEST_EXPECT("123 456".startsWithAnyOf({'1', '8'})); // '1' will match

SC::StringView::startsWithAnyOf

bool startsWithAnyOf(Span< const StringCodePoint > codePoints) const

Check if StringView starts with any utf code point in the given span.

◆ toBytesSpan()

Span< const uint8_t > SC::StringView::toBytesSpan ( ) const

inline

Obtain a const uint8_t Span from this StringView.

Returns: Span representing this StringView

◆ toCharSpan()

constexpr Span< const char > SC::StringView::toCharSpan ( ) const

inlineconstexpr

Obtain a const char Span from this StringView.

Returns: Span representing this StringView

◆ trimAnyOf()

StringView SC::StringView::trimAnyOf ( Span< const StringCodePoint > codePoints ) const

Returns a shortened StringView removing starting and ending utf code points inside the codePoints span.

Parameters

codePoints The span of utf code points to look for

Returns: The trimmed StringView

Example:

SC_TEST_EXPECT("__\n_myTest__\n"_a8.trimAnyOf({'_', '\n'}) == "myTest");

SC_TEST_EXPECT("_myTest"_a8.trimAnyOf({'_'}) == "myTest");

◆ trimEndAnyOf()

StringView SC::StringView::trimEndAnyOf ( Span< const StringCodePoint > codePoints ) const

Returns a shortened StringView removing ending utf code points matching the codePoints span.

Parameters

codePoints The span of utf code points to look for

Returns: The trimmed StringView

Example:

SC_TEST_EXPECT("myTest_\n__"_a8.trimEndAnyOf({'_', '\n'}) == "myTest");

SC_TEST_EXPECT("myTest"_a8.trimEndAnyOf({'_'}) == "myTest");

◆ trimStartAnyOf()

StringView SC::StringView::trimStartAnyOf ( Span< const StringCodePoint > codePoints ) const

Returns a shortened StringView removing starting utf code points matching the codePoints span.

Parameters

codePoints The span of utf code points to look for

Returns: The trimmed StringView

Example:

SC_TEST_EXPECT("__\n_myTest"_a8.trimStartAnyOf({'_', '\n'}) == "myTest");

SC_TEST_EXPECT("_myTest"_a8.trimStartAnyOf({'_'}) == "myTest");

◆ trimWhiteSpaces()

StringView SC::StringView::trimWhiteSpaces ( ) const

Returns a shortened StringView without starting/ending utf code points inside {'\r', '\n', '\t', ' '}.

Returns: The trimmed StringView

Example:

SC_TEST_EXPECT(" \n_myTest__\n\t"_a8.trimWhiteSpaces() == "_myTest__");

SC_TEST_EXPECT("\nmyTest \r"_a8.trimWhiteSpaces() == "myTest");

◆ withIterator()

template<typename Func >

constexpr auto SC::StringView::withIterator ( Func && func ) const

constexpr

Call given lambda with one of StringIteratorASCII, StringIteratorUTF8, StringIteratorUTF16 depending on encoding.

Template Parameters

Func	A function/lambda with `auto operator()({StringIteratorASCII \| StringIteratorUTF8 \| StringIteratorUTF16})`

Parameters

func	lambda / functor to be called

Returns: whatever value is returned by invoking func

◆ withIterators()

template<typename Func >

constexpr auto SC::StringView::withIterators	(	StringView	s1,
		StringView	s2,
		Func &&	func
	)

staticconstexpr

Call given lambda with one of StringIteratorASCII, StringIteratorUTF8, StringIteratorUTF16 depending on encoding.

Template Parameters

Func	Func A function/lambda with `auto operator()({StringIteratorASCII \| StringIteratorUTF8 \| StringIteratorUTF16}, {StringIteratorASCII \| StringIteratorUTF8 \| StringIteratorUTF16})`

Parameters

s1	StringView that will be passed as first iterator
s2	StringView that will be passed as second iterator
func	the lambda / to be invoked

Returns: whatever value is returned by invoking func

The documentation for this struct was generated from the following file:

StringView.h

Public Types

Public Member Functions

Static Public Member Functions

Detailed Description

Member Enumeration Documentation

◆ Comparison

Constructor & Destructor Documentation

◆ StringView() [1/5]

◆ StringView() [2/5]

◆ StringView() [3/5]

◆ StringView() [4/5]

◆ StringView() [5/5]

Member Function Documentation

◆ bytesIncludingTerminator()

◆ bytesWithoutTerminator()

◆ compare()

◆ containsCodePoint()

◆ containsString()

◆ endsWith()

◆ endsWithAnyOf()

◆ fromIteratorFromStart()

◆ fromIterators()

◆ fromIteratorUntilEnd()

◆ fromNullTerminated()

◆ fullyOverlaps()

◆ getEncoding()

◆ getIterator()

◆ getNullTerminatedNative()

◆ hasCompatibleEncoding()

◆ isEmpty()

◆ isFloatingNumber()

◆ isIntegerNumber()

◆ isNullTerminated()

◆ operator!=()

◆ operator<()

◆ operator==()

◆ parseDouble()

◆ parseFloat()

◆ parseInt32()

◆ sizeInBytes()

◆ sizeInBytesIncludingTerminator()

◆ sliceEnd()

◆ sliceStart()

◆ sliceStartBytes()

◆ sliceStartEnd()

◆ sliceStartEndBytes()

◆ sliceStartLength()

◆ sliceStartLengthBytes()

◆ splitAfter()

◆ splitBefore()

◆ startsWith()

◆ startsWithAnyOf()

◆ toBytesSpan()

◆ toCharSpan()

◆ trimAnyOf()

◆ trimEndAnyOf()

◆ trimStartAnyOf()

◆ trimWhiteSpaces()

◆ withIterator()

◆ withIterators()