CrystalSpace

Public API Reference

iString Struct Reference
[Utilities]

This is a SCF-compatible interface for csString. More...

#include <iutil/string.h>

Inheritance diagram for iString:

List of all members.

Public Member Functions

virtual void Append (const char *Str, size_t Count=(size_t)-1)=0
 Append a null-terminated C-string to this one.
virtual void Append (const iString *Str, size_t Count=(size_t)-1)=0
 Append a string to this one.
virtual csRef< iStringClone () const =0
 Get a copy of this string.
virtual bool Compare (const iString *Str) const =0
 Check if another string is equal to this one.
virtual bool CompareNoCase (const iString *Str) const =0
 Check if another string is equal to this one.
virtual void DeleteAt (size_t Pos, size_t Count=1)=0
 Delete a range of characters from the string.
virtual void Downcase ()=0
 Convert string to lowercase.
virtual void Empty ()=0
 Clear the string (so that it contains only a null terminator).
virtual size_t Find (const char *search, size_t pos=0) const =0
 Find the first occurrence of search in this string starting at pos.
virtual size_t FindFirst (const char c, size_t p=(size_t)-1) const =0
 Find the first occurrence of a character in the string.
virtual size_t FindLast (const char c, size_t p=(size_t)-1) const =0
 Find the last occurrence of a character in the string.
virtual void Format (const char *format,...)=0
 Format this string using sprintf()-style formatting directives.
virtual void FormatV (const char *format, va_list args)=0
 Format this string using sprintf() formatting directives in a va_list.
virtual char GetAt (size_t n) const =0
 Get the n'th character.
virtual size_t GetCapacity () const =0
 Return the current capacity.
virtual char const * GetData () const =0
 Get a pointer to the null-terminated character array.
virtual size_t GetGrowsBy () const =0
 Return the number of bytes by which the string grows.
virtual void Insert (size_t Pos, iString const *Str)=0
 Insert another string into this one.
virtual bool IsEmpty () const =0
 Check if string is empty.
virtual size_t Length () const =0
 Query string length.
virtual operator char const * () const =0
 Get a pointer to the null-terminated character array.
virtual bool operator!= (const iString &Str) const =0
 Check if another string is not equal to this one.
virtual csRef< iStringoperator+ (const iString &iStr) const =0
 Concatenate two strings and return a third one.
virtual void operator+= (const char *iStr)=0
 Append a null-terminated C-string to this string.
virtual void operator+= (const iString &iStr)=0
 Append another string to this one.
virtual bool operator== (const iString &Str) const =0
 Check if another string is equal to this one.
virtual char & operator[] (size_t n)=0
 Get a modifiable reference to n'th character.
virtual char operator[] (size_t n) const =0
 Get n'th character.
virtual void Overwrite (size_t Pos, iString const *Str)=0
 Overlay another string onto a part of this string.
virtual void Replace (const char *str, size_t count=(size_t)-1)=0
 Replace contents of this string with the contents of another.
virtual void Replace (const iString *str, size_t count=(size_t)-1)=0
 Replace contents of this string with the contents of another.
virtual void ReplaceAll (const char *search, const char *replacement)=0
 Find all occurrences of search in this string and replace them with replacement.
virtual void SetAt (size_t n, char iChar)=0
 Set the n'th character.
virtual void SetCapacity (size_t NewSize)=0
 Advise the string that it should allocate enough space to hold up to NewSize characters.
virtual void SetGrowsBy (size_t)=0
 Advise the string that it should grow its allocated buffer by approximately this many bytes when more space is required.
virtual void ShrinkBestFit ()=0
 Set string buffer capacity to hold exactly the current content.
virtual csRef< iStringSlice (size_t start, size_t len) const =0
 Copy and return a portion of this string.
virtual bool StartsWith (const char *Str, bool ignore_case=false) const =0
 Check if this string starts with another null-terminated C-string.
virtual bool StartsWith (const iString *Str, bool ignore_case=false) const =0
 Check if this string starts with another one.
virtual void SubString (iString *sub, size_t start, size_t len) const =0
 Copy a portion of this string.
virtual void Truncate (size_t Len)=0
 Truncate the string.
virtual void Upcase ()=0
 Convert string to uppercase.

Detailed Description

This is a SCF-compatible interface for csString.

Definition at line 32 of file string.h.


Member Function Documentation

virtual void iString::Append ( const char *  Str,
size_t  Count = (size_t)-1 
) [pure virtual]

Append a null-terminated C-string to this one.

Parameters:
Str String which will be appended.
Count Number of characters from Str to append; if -1 (the default), then all characters from Str will be appended.
virtual void iString::Append ( const iString Str,
size_t  Count = (size_t)-1 
) [pure virtual]

Append a string to this one.

Parameters:
Str String which will be appended.
Count Number of characters from Str to append; if -1 (the default), then all characters from Str will be appended.
virtual csRef<iString> iString::Clone (  )  const [pure virtual]

Get a copy of this string.

virtual bool iString::Compare ( const iString Str  )  const [pure virtual]

Check if another string is equal to this one.

Parameters:
Str Other string.
Returns:
True if they are equal; false if not.
Remarks:
The comparison is case-sensitive.
virtual bool iString::CompareNoCase ( const iString Str  )  const [pure virtual]

Check if another string is equal to this one.

Parameters:
Str Other string.
Returns:
True if they are equal; false if not.
Remarks:
The comparison is case-insensitive.
virtual void iString::DeleteAt ( size_t  Pos,
size_t  Count = 1 
) [pure virtual]

Delete a range of characters from the string.

Parameters:
Pos Beginning of range to be deleted (zero-based).
Count Number of characters to delete.
virtual void iString::Downcase (  )  [pure virtual]

Convert string to lowercase.

virtual void iString::Empty (  )  [pure virtual]

Clear the string (so that it contains only a null terminator).

Remarks:
This is typically shorthand for Truncate(0), but more idiomatic in terms of human language.
virtual size_t iString::Find ( const char *  search,
size_t  pos = 0 
) const [pure virtual]

Find the first occurrence of search in this string starting at pos.

Parameters:
search String to locate.
pos Start position of search (default 0).
Returns:
First position of search, or (size_t)-1 if not found.
virtual size_t iString::FindFirst ( const char  c,
size_t  p = (size_t)-1 
) const [pure virtual]

Find the first occurrence of a character in the string.

Parameters:
c Character to locate.
p Start position of search (default 0).
Returns:
First position of character, or (size_t)-1 if not found.
virtual size_t iString::FindLast ( const char  c,
size_t  p = (size_t)-1 
) const [pure virtual]

Find the last occurrence of a character in the string.

Parameters:
c Character to locate.
p Start position of reverse search. Specify (size_t)-1 if you want the search to begin at the very end of string.
Returns:
Last position of character, or (size_t)-1 if not found.
virtual void iString::Format ( const char *  format,
  ... 
) [pure virtual]

Format this string using sprintf()-style formatting directives.

Remarks:
Automatically allocates sufficient memory to hold result. Newly formatted string replaces previous string value.
See also:
Notes about string formatting in Crystal Space
virtual void iString::FormatV ( const char *  format,
va_list  args 
) [pure virtual]

Format this string using sprintf() formatting directives in a va_list.

Returns:
Reference to itself.
Remarks:
Automatically allocates sufficient memory to hold result. Newly formatted string replaces previous string value.
See also:
Notes about string formatting in Crystal Space
virtual char iString::GetAt ( size_t  n  )  const [pure virtual]

Get the n'th character.

virtual size_t iString::GetCapacity (  )  const [pure virtual]

Return the current capacity.

virtual char const* iString::GetData (  )  const [pure virtual]

Get a pointer to the null-terminated character array.

Returns:
A C-string pointer to the null-terminated character array; or zero if the string represents a null-pointer.
virtual size_t iString::GetGrowsBy (  )  const [pure virtual]

Return the number of bytes by which the string grows.

Remarks:
If the return value is zero, then the internal buffer grows exponentially by doubling its size, rather than by fixed increments.
virtual void iString::Insert ( size_t  Pos,
iString const *  Str 
) [pure virtual]

Insert another string into this one.

Parameters:
Pos Position at which to insert the other string (zero-based).
Str String to insert.
virtual bool iString::IsEmpty (  )  const [pure virtual]

Check if string is empty.

Returns:
True if the string is empty; false if it is not.
Remarks:
This is equivalent to the expression 'Length() == 0'.
virtual size_t iString::Length (  )  const [pure virtual]

Query string length.

Returns:
The string length.
Remarks:
The returned length does not count the implicit null terminator.
virtual iString::operator char const * (  )  const [pure virtual]

Get a pointer to the null-terminated character array.

Returns:
A C-string pointer to the null-terminated character array; or zero if the string represents a null-pointer.
virtual bool iString::operator!= ( const iString Str  )  const [pure virtual]

Check if another string is not equal to this one.

Parameters:
Str Other string.
Returns:
False if they are equal; true if not.
Remarks:
The comparison is case-sensitive.
virtual csRef<iString> iString::operator+ ( const iString iStr  )  const [pure virtual]

Concatenate two strings and return a third one.

virtual void iString::operator+= ( const char *  iStr  )  [pure virtual]

Append a null-terminated C-string to this string.

virtual void iString::operator+= ( const iString iStr  )  [pure virtual]

Append another string to this one.

virtual bool iString::operator== ( const iString Str  )  const [pure virtual]

Check if another string is equal to this one.

Parameters:
Str Other string.
Returns:
True if they are equal; false if not.
Remarks:
The comparison is case-sensitive.
virtual char& iString::operator[] ( size_t  n  )  [pure virtual]

Get a modifiable reference to n'th character.

virtual char iString::operator[] ( size_t  n  )  const [pure virtual]

Get n'th character.

virtual void iString::Overwrite ( size_t  Pos,
iString const *  Str 
) [pure virtual]

Overlay another string onto a part of this string.

Parameters:
Pos Position at which to insert the other string (zero-based).
Str String which will be overlayed atop this string.
Remarks:
The target string will grow as necessary to accept the new string.
virtual void iString::Replace ( const char *  str,
size_t  count = (size_t)-1 
) [pure virtual]

Replace contents of this string with the contents of another.

Parameters:
str String from which new content of this string will be copied.
count Number of characters to copy. If (size_t)-1 is specified, then all characters will be copied.
virtual void iString::Replace ( const iString str,
size_t  count = (size_t)-1 
) [pure virtual]

Replace contents of this string with the contents of another.

Parameters:
str String from which new content of this string will be copied.
count Number of characters to copy. If (size_t)-1 is specified, then all characters will be copied.
virtual void iString::ReplaceAll ( const char *  search,
const char *  replacement 
) [pure virtual]

Find all occurrences of search in this string and replace them with replacement.

virtual void iString::SetAt ( size_t  n,
char  iChar 
) [pure virtual]

Set the n'th character.

Remarks:
The n'th character position must be a valid position in the string. You can not expand the string by setting a character beyond the end of string.
virtual void iString::SetCapacity ( size_t  NewSize  )  [pure virtual]

Advise the string that it should allocate enough space to hold up to NewSize characters.

Remarks:
After calling this method, the string's capacity will be at least NewSize + 1 (one for the implicit null terminator). Never shrinks capacity. If you need to actually reclaim memory, then use Free() or Reclaim().
virtual void iString::SetGrowsBy ( size_t   )  [pure virtual]

Advise the string that it should grow its allocated buffer by approximately this many bytes when more space is required.

This is an optimization to avoid excessive memory reallocation and heap management, which can be quite slow.

Remarks:
This value is only a suggestion. The actual value by which it grows may be rounded up or down to an implementation-dependent allocation multiple.
If the value is zero, then the internal buffer grows exponentially by doubling its size, rather than by fixed increments.
virtual void iString::ShrinkBestFit (  )  [pure virtual]

Set string buffer capacity to hold exactly the current content.

Remarks:
If the string length is greater than zero, then the buffer's capacity will be adjusted to exactly that size. If the string length is zero, then the implementation may shrink the allocation so that it only holds the implicit null terminator, or it may free the string's memory completely.
virtual csRef<iString> iString::Slice ( size_t  start,
size_t  len 
) const [pure virtual]

Copy and return a portion of this string.

Parameters:
start Start position of slice (zero-based).
len Number of characters in slice.
Returns:
The indicated string slice.
virtual bool iString::StartsWith ( const char *  Str,
bool  ignore_case = false 
) const [pure virtual]

Check if this string starts with another null-terminated C-string.

Parameters:
Str Other string.
ignore_case Causes the comparison to be case insensitive if true.
Returns:
True if they are equal up to the length of Str; false if not.
virtual bool iString::StartsWith ( const iString Str,
bool  ignore_case = false 
) const [pure virtual]

Check if this string starts with another one.

Parameters:
Str Other string.
ignore_case Causes the comparison to be case insensitive if true.
Returns:
True if they are equal up to the length of Str; false if not.
virtual void iString::SubString ( iString sub,
size_t  start,
size_t  len 
) const [pure virtual]

Copy a portion of this string.

Parameters:
sub String which will receive the indicated substring copy.
start Start position of slice (zero-based).
len Number of characters in slice.
Remarks:
Use this method instead of Slice() for cases where you expect to extract many substrings in a tight loop, and want to avoid the overhead of allocation of a new string object for each operation. Simply re-use 'sub' for each operation.
virtual void iString::Truncate ( size_t  Len  )  [pure virtual]

Truncate the string.

Parameters:
Len The number of characters to which the string should be truncated (possibly 0).
Remarks:
Will only make a string shorter; will never extend it. This method may or may not reclaim memory depending upon the implementation. If you positively need to reclaim memory after truncating the string, then invoke Reclaim().
virtual void iString::Upcase (  )  [pure virtual]

Convert string to uppercase.


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

Generated for Crystal Space 1.4.1 by doxygen 1.7.1