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    nsAString_internal

    Class Declaration 

    nsTSubstring is the most abstract class in the string hierarchy. It
represents a single contiguous array of characters, which may or may not
be null-terminated. This type is not instantiated directly.  A sub-class
is instantiated instead.  For example, see nsTString.

NAMES:
nsAString for wide characters
nsACString for narrow characters

Many of the accessors on nsTSubstring are inlined as an optimization.
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    Method Overview

    Constructors
    BeginReading
    EndReading
    BeginWriting
    EndWriting
    Data
    Length
    IsEmpty
    IsVoid
    IsTerminated
    CharAt
    operator[]
    First
    Last
    CountChar
    FindChar
    Equals
    EqualsASCII
    EqualsLiteral(const char
    EqualsLiteral(char
    LowerCaseEqualsASCII
    LowerCaseEqualsLiteral(const char
    LowerCaseEqualsLiteral(char
    Assign
    AssignASCII
    AssignLiteral(const char
    AssignLiteral(char
    operator=
    Adopt
    Replace
    ReplaceASCII
    Append
    AppendASCII
    AppendLiteral(const char
    AppendLiteral(char
    operator+=
    Insert
    Cut
    SetCapacity
    SetLength
    Truncate
    GetData
    GetMutableData
    SetIsVoid
    StripChar

    Data Members

    No public members.

    Methods

    Constructors

    void nsAString_internal(const nsSubstringTuple&) - source 
    this is public to support automatic conversion of tuple to string
base type, which helps avoid converting to nsTAString.

    Parameters

    • nsSubstringTuple& tuple
    void nsAString_internal(PRUnichar*, PRUint32, PRUint32) - source

    Parameters

    • PRUnichar* data
    • PRUint32 length
    • PRUint32 flags

    BeginReading

    PRUnichar* BeginReading() const - source 
    reading iterators
    nsReadingIterator<short unsigned int>& BeginReading(nsReadingIterator<short unsigned int>&) const - source 
    deprecated reading iterators

    Parameters

    • nsReadingIterator<short unsigned int>& iter
    PRUnichar*& BeginReading(const PRUnichar*&) const - source

    Parameters

    • PRUnichar*& iter

    EndReading

    PRUnichar* EndReading() const - source
    nsReadingIterator<short unsigned int>& EndReading(nsReadingIterator<short unsigned int>&) const - source

    Parameters

    • nsReadingIterator<short unsigned int>& iter
    PRUnichar*& EndReading(const PRUnichar*&) const - source

    Parameters

    • PRUnichar*& iter

    BeginWriting

    PRUnichar* BeginWriting() - source 
    writing iterators
    nsWritingIterator<short unsigned int>& BeginWriting(nsWritingIterator<short unsigned int>&) - source 
    deprecated writing iterators

    Parameters

    • nsWritingIterator<short unsigned int>& iter
    PRUnichar*& BeginWriting(PRUnichar*&) - source

    Parameters

    • PRUnichar*& iter

    EndWriting

    PRUnichar* EndWriting() - source
    nsWritingIterator<short unsigned int>& EndWriting(nsWritingIterator<short unsigned int>&) - source

    Parameters

    • nsWritingIterator<short unsigned int>& iter
    PRUnichar*& EndWriting(PRUnichar*&) - source

    Parameters

    • PRUnichar*& iter

    Data

    PRUnichar* Data() const - source 
    accessors

    Length

    PRUint32 Length() const - source

    IsEmpty

    PRBool IsEmpty() const - source

    IsVoid

    PRBool IsVoid() const - source

    IsTerminated

    PRBool IsTerminated() const - source

    CharAt

    PRUnichar CharAt(PRUint32) const - source

    Parameters

    • PRUint32 i

    operator[]

    PRUnichar operator[](PRUint32) const - source

    Parameters

    • PRUint32 i

    First

    PRUnichar First() const - source

    Last

    PRUnichar Last() const - source

    CountChar

    PRUint32 CountChar(PRUnichar) const - source

    Parameters

    • PRUnichar <anonymous>

    FindChar

    PRInt32 FindChar(PRUnichar, PRUint32) const - source

    Parameters

    • PRUnichar <anonymous>
    • PRUint32 offset

    Equals

    PRBool Equals(const nsAString_internal&) const - source 
    equality

    Parameters

    • nsAString_internal& <anonymous>
    PRBool Equals(const nsAString_internal&, const nsStringComparator&) const - source

    Parameters

    • nsAString_internal& <anonymous>
    • nsStringComparator& <anonymous>
    PRBool Equals(const PRUnichar*) const - source

    Parameters

    • PRUnichar* data
    PRBool Equals(const PRUnichar*, const nsStringComparator&) const - source

    Parameters

    • PRUnichar* data
    • nsStringComparator& comp

    EqualsASCII

    PRBool EqualsASCII(const char*, PRUint32) const - source 
    An efficient comparison with ASCII that can be used even
for wide strings. Call this version when you know the
length of 'data'.

    Parameters

    • char* data
    • PRUint32 len
    PRBool EqualsASCII(const char*) const - source 
    An efficient comparison with ASCII that can be used even
for wide strings. Call this version when 'data' is
null-terminated.

    Parameters

    • char* data

    EqualsLiteral(const char

    PRBool EqualsLiteral(const char (&)[N]) const - source

    EqualsLiteral(char

    PRBool EqualsLiteral(char (&)[N]) const - source

    LowerCaseEqualsASCII

    PRBool LowerCaseEqualsASCII(const char*, PRUint32) const - source

    Parameters

    • char* data
    • PRUint32 len
    PRBool LowerCaseEqualsASCII(const char*) const - source

    Parameters

    • char* data

    LowerCaseEqualsLiteral(const char

    PRBool LowerCaseEqualsLiteral(const char (&)[N]) const - source

    LowerCaseEqualsLiteral(char

    PRBool LowerCaseEqualsLiteral(char (&)[N]) const - source

    Assign

    void Assign(PRUnichar) - source 
    assignment

    Parameters

    • PRUnichar c
    void Assign(const PRUnichar*, PRUint32) - source

    Parameters

    • PRUnichar* data
    • PRUint32 length
    void Assign(const nsAString_internal&) - source

    Parameters

    • nsAString_internal& <anonymous>
    void Assign(const nsSubstringTuple&) - source

    Parameters

    • nsSubstringTuple& <anonymous>

    AssignASCII

    void AssignASCII(const char*, PRUint32) - source

    Parameters

    • char* data
    • PRUint32 length
    void AssignASCII(const char*) - source

    Parameters

    • char* data

    AssignLiteral(const char

    void AssignLiteral(const char (&)[N]) - source

    AssignLiteral(char

    void AssignLiteral(char (&)[N]) - source

    operator=

    nsAString_internal& operator=(PRUnichar) - source

    Parameters

    • PRUnichar c
    nsAString_internal& operator=(const PRUnichar*) - source

    Parameters

    • PRUnichar* data
    nsAString_internal& operator=(const nsAString_internal&) - source

    Parameters

    • nsAString_internal& str
    nsAString_internal& operator=(const nsSubstringTuple&) - source

    Parameters

    • nsSubstringTuple& tuple

    Adopt

    void Adopt(PRUnichar*, PRUint32) - source

    Parameters

    • PRUnichar* data
    • PRUint32 length

    Replace

    void Replace(PRUint32, PRUint32, PRUnichar) - source 
    buffer manipulation

    Parameters

    • PRUint32 cutStart
    • PRUint32 cutLength
    • PRUnichar c
    void Replace(PRUint32, PRUint32, const PRUnichar*, PRUint32) - source

    Parameters

    • PRUint32 cutStart
    • PRUint32 cutLength
    • PRUnichar* data
    • PRUint32 length
    void Replace(PRUint32, PRUint32, const nsAString_internal&) - source

    Parameters

    • PRUint32 cutStart
    • PRUint32 cutLength
    • nsAString_internal& str
    void Replace(PRUint32, PRUint32, const nsSubstringTuple&) - source

    Parameters

    • PRUint32 cutStart
    • PRUint32 cutLength
    • nsSubstringTuple& tuple

    ReplaceASCII

    void ReplaceASCII(PRUint32, PRUint32, const char*, PRUint32) - source

    Parameters

    • PRUint32 cutStart
    • PRUint32 cutLength
    • char* data
    • PRUint32 length

    Append

    void Append(PRUnichar) - source

    Parameters

    • PRUnichar c
    void Append(const PRUnichar*, PRUint32) - source

    Parameters

    • PRUnichar* data
    • PRUint32 length
    void Append(const nsAString_internal&) - source

    Parameters

    • nsAString_internal& str
    void Append(const nsSubstringTuple&) - source

    Parameters

    • nsSubstringTuple& tuple

    AppendASCII

    void AppendASCII(const char*, PRUint32) - source

    Parameters

    • char* data
    • PRUint32 length

    AppendLiteral(const char

    void AppendLiteral(const char (&)[N]) - source

    AppendLiteral(char

    void AppendLiteral(char (&)[N]) - source

    operator+=

    nsAString_internal& operator+=(PRUnichar) - source

    Parameters

    • PRUnichar c
    nsAString_internal& operator+=(const PRUnichar*) - source

    Parameters

    • PRUnichar* data
    nsAString_internal& operator+=(const nsAString_internal&) - source

    Parameters

    • nsAString_internal& str
    nsAString_internal& operator+=(const nsSubstringTuple&) - source

    Parameters

    • nsSubstringTuple& tuple

    Insert

    void Insert(PRUnichar, PRUint32) - source

    Parameters

    • PRUnichar c
    • PRUint32 pos
    void Insert(const PRUnichar*, PRUint32, PRUint32) - source

    Parameters

    • PRUnichar* data
    • PRUint32 pos
    • PRUint32 length
    void Insert(const nsAString_internal&, PRUint32) - source

    Parameters

    • nsAString_internal& str
    • PRUint32 pos
    void Insert(const nsSubstringTuple&, PRUint32) - source

    Parameters

    • nsSubstringTuple& tuple
    • PRUint32 pos

    Cut

    void Cut(PRUint32, PRUint32) - source

    Parameters

    • PRUint32 cutStart
    • PRUint32 cutLength

    SetCapacity

    void SetCapacity(PRUint32) - source 
    buffer sizing

    Parameters

    • PRUint32 newCapacity

    SetLength

    void SetLength(PRUint32) - source

    Parameters

    • PRUint32 newLength

    Truncate

    void Truncate(PRUint32) - source

    Parameters

    • PRUint32 newLength

    GetData

    PRUint32 GetData(const PRUnichar**) const - source 
    Get a const pointer to the string's internal buffer.  The caller
MUST NOT modify the characters at the returned address.

@returns The length of the buffer in characters.

    Parameters

    • PRUnichar** data

    GetMutableData

    PRUint32 GetMutableData(PRUnichar**, PRUint32) - source 
    Get a pointer to the string's internal buffer, optionally resizing
the buffer first.  If size_type(-1) is passed for newLen, then the
current length of the string is used.  The caller MAY modify the
characters at the returned address (up to but not exceeding the
length of the string).

@returns The length of the buffer in characters or 0 if unable to
satisfy the request due to low-memory conditions.

    Parameters

    • PRUnichar** data
    • PRUint32 newLen

    SetIsVoid

    void SetIsVoid(PRBool) - source 
    string data is never null, but can be marked void.  if true, the
string will be truncated.  @see nsTSubstring::IsVoid

    Parameters

    • PRBool <anonymous>

    StripChar

    void StripChar(PRUnichar, PRInt32) - source 
    This method is used to remove all occurrences of aChar from this
string.

@param  aChar -- char to be stripped
@param  aOffset -- where in this string to start stripping chars

    Parameters

    • PRUnichar aChar
    • PRInt32 aOffset

    Document Tags and Contributors

     Contributors to this page: teoli, BenjaminSmedberg
     Last updated by: BenjaminSmedberg,