These functions provide unicode string buffer management.

The Unicode String Buffer data type is designed to be a mutable string, allowing the appending, prepending or insertion of a string to a buffer.

Functions
Eina_UStrbuf *	eina_ustrbuf_new (void)
	Creates a new unicode string buffer.
Eina_UStrbuf *	eina_ustrbuf_manage_new (Eina_Unicode *str)
	Creates a new string buffer using the passed string.
Eina_UStrbuf *	eina_ustrbuf_manage_new_length (Eina_Unicode *str, size_t length)
	Creates a new string buffer using the passed string.
void	eina_ustrbuf_free (Eina_UStrbuf *buf)
	Frees a string buffer.
void	eina_ustrbuf_reset (Eina_UStrbuf *buf)
	Resets a string buffer.
Eina_Bool	eina_ustrbuf_append (Eina_UStrbuf buf, const Eina_Unicode str) 2)
	Appends a string to a buffer, reallocating as necessary.
Eina_Bool	eina_ustrbuf_append_escaped (Eina_UStrbuf buf, const Eina_Unicode str) 2)
	Appends an escaped string to a buffer, reallocating as necessary.
Eina_Bool	eina_ustrbuf_append_n (Eina_UStrbuf buf, const Eina_Unicode str, size_t maxlen) 2)
	Appends a string to a buffer, reallocating as necessary, limited by the given length.
Eina_Bool	eina_ustrbuf_append_length (Eina_UStrbuf buf, const Eina_Unicode str, size_t length) 2)
	Appends a string of exact length to a buffer, reallocating as necessary.
Eina_Bool	eina_ustrbuf_append_slice (Eina_UStrbuf *buf, const Eina_Slice slice)
	Appends a slice to a buffer, reallocating as necessary.
Eina_Bool	eina_ustrbuf_append_char (Eina_UStrbuf *buf, Eina_Unicode c)
	Appends a character to a string buffer, reallocating as necessary.
Eina_Bool	eina_ustrbuf_insert (Eina_UStrbuf buf, const Eina_Unicode str, size_t pos) 2)
	Inserts a string to a buffer, reallocating as necessary.
Eina_Bool	eina_ustrbuf_insert_escaped (Eina_UStrbuf buf, const Eina_Unicode str, size_t pos) 2)
	Inserts an escaped string to a buffer, reallocating as necessary.
Eina_Bool	eina_ustrbuf_insert_n (Eina_UStrbuf buf, const Eina_Unicode str, size_t maxlen, size_t pos) 2)
	Inserts a string to a buffer, reallocating as necessary. Limited by maxlen.
Eina_Bool	eina_ustrbuf_insert_length (Eina_UStrbuf buf, const Eina_Unicode str, size_t length, size_t pos) 2)
	Inserts a string of exact length to a buffer, reallocating as necessary.
Eina_Bool	eina_ustrbuf_insert_slice (Eina_UStrbuf *buf, const Eina_Slice slice, size_t pos)
	Inserts a slice to a buffer, reallocating as necessary.
Eina_Bool	eina_ustrbuf_insert_char (Eina_UStrbuf *buf, Eina_Unicode c, size_t pos)
	Inserts a character to a string buffer, reallocating as necessary.
Eina_Bool	eina_ustrbuf_remove (Eina_UStrbuf *buf, size_t start, size_t end)
	Removes a section of the given string buffer.
const Eina_Unicode *	eina_ustrbuf_string_get (const Eina_UStrbuf *buf)
	Retrieves a pointer to the contents of a string buffer.
Eina_Unicode *	eina_ustrbuf_string_steal (Eina_UStrbuf *buf)
	Steals the contents of a string buffer.
void	eina_ustrbuf_string_free (Eina_UStrbuf *buf)
	Frees the contents of a string buffer but not the buffer.
size_t	eina_ustrbuf_length_get (const Eina_UStrbuf *buf)
	Retrieves the length of the string buffer's content.
Eina_Slice	eina_ustrbuf_slice_get (const Eina_UStrbuf *buf)
	Gets a read-only slice of the buffer contents.
Eina_Rw_Slice	eina_ustrbuf_rw_slice_get (const Eina_UStrbuf *buf)
	Gets a read-write slice of the buffer contents.
Eina_Unicode *	eina_ustrbuf_release (Eina_UStrbuf *buf)
	Frees the buffer, returning its old contents.
Typedefs
typedef struct _Eina_Strbuf	Eina_UStrbuf
Defines
#define	eina_ustrbuf_prepend(buf, str) eina_ustrbuf_insert(buf, str, 0)
	Prepends a string to the given buffer.
#define	eina_ustrbuf_prepend_escaped(buf, str) eina_ustrbuf_insert_escaped(buf, str, 0)
	Prepends an escaped string to the given buffer.
#define	eina_ustrbuf_prepend_n(buf, str, maxlen) eina_ustrbuf_insert_n(buf, str, maxlen, 0)
	Prepends an escaped string to the given buffer.
#define	eina_ustrbuf_prepend_length(buf, str, length) eina_ustrbuf_insert_length(buf, str, length, 0)
	Prepends an escaped string to the given buffer.
#define	eina_ustrbuf_prepend_char(buf, c) eina_ustrbuf_insert_char(buf, c, 0)
	Prepends a unicode character to the given buffer.

Define Documentation

#define eina_ustrbuf_prepend	(	buf,
		str
	)	eina_ustrbuf_insert(buf, str, 0)

Prepends a string to the given buffer.

Parameters:

[in,out]	buf	The string buffer.
[in]	str	The string to prepend.

Returns:: EINA_TRUE on success, EINA_FALSE if str could not be prepended.

This macro simply calls eina_ustrbuf_insert() with position 0.

#define eina_ustrbuf_prepend_char	(	buf,
		c
	)	eina_ustrbuf_insert_char(buf, c, 0)

Prepends a unicode character to the given buffer.

Parameters:

[in,out]	buf	The string buffer.
[in]	c	The Eina_Unicode character to prepend.

Returns:: EINA_TRUE on success, EINA_FALSE if c could not be prepended.

This macro is calling eina_ustrbuf_insert_Eina_Unicode() at position 0.

#define eina_ustrbuf_prepend_escaped	(	buf,
		str
	)	eina_ustrbuf_insert_escaped(buf, str, 0)

Prepends an escaped string to the given buffer.

Parameters:

[in,out]	buf	The string buffer.
[in]	str	The string to prepend.

Returns:: EINA_TRUE on success, EINA_FALSE if str could not be prepended.

This macro simply calls eina_ustrbuf_insert_escaped() with position 0.

#define eina_ustrbuf_prepend_length	(	buf,
		str,
		length
	)	eina_ustrbuf_insert_length(buf, str, length, 0)

Prepends an escaped string to the given buffer.

Parameters:

[in,out]	buf	The string buffer.
[in]	str	The string to prepend.
[in]	length	The exact length to use.

Returns:: EINA_TRUE on success, EINA_FALSE if str could not be prepended.

This macro simply calls eina_ustrbuf_insert_length() with position 0.

#define eina_ustrbuf_prepend_n	(	buf,
		str,
		maxlen
	)	eina_ustrbuf_insert_n(buf, str, maxlen, 0)

Prepends an escaped string to the given buffer.

Parameters:

[in,out]	buf	The string buffer.
[in]	str	The string to prepend.
[in]	maxlen	The maximum number of Eina_Unicode *s to prepend.

Returns:: EINA_TRUE on success, EINA_FALSE if could not be prepended.

This macro simply calls eina_ustrbuf_insert_n() with position 0.

Typedef Documentation

Eina_UStrbuf

Type for a unicode string buffer.

Function Documentation

Eina_Bool eina_ustrbuf_append	(	Eina_UStrbuf *	buf,
		const Eina_Unicode *	str
	)

Appends a string to a buffer, reallocating as necessary.

Parameters:

[in,out]	buf	The string buffer.
[in]	str	The string to append.

Returns:: EINA_TRUE on success, EINA_FALSE on failure such as if str could not be appended.

This function appends str to buf. It computes the length of str, so is slightly slower than eina_ustrbuf_append_length(). If the length is known beforehand, consider using that variant.

See also:: eina_ustrbuf_append(); eina_ustrbuf_append_length()

Since :: 2.3

Eina_Bool eina_ustrbuf_append_char	(	Eina_UStrbuf *	buf,
		Eina_Unicode	c
	)

Appends a character to a string buffer, reallocating as necessary.

Parameters:

[in,out]	buf	The string buffer.
[in]	c	The char to append.

Returns:: EINA_TRUE on success, EINA_FALSE if c could not be appended.

This function appends c to buf.

Since :: 2.3

Eina_Bool eina_ustrbuf_append_escaped	(	Eina_UStrbuf *	buf,
		const Eina_Unicode *	str
	)

Appends an escaped string to a buffer, reallocating as necessary.

Parameters:

[in,out]	buf	The string buffer.
[in]	str	The string to append.

Returns:: EINA_TRUE on success, EINA_FALSE if str could not be appended.

This function appends the escaped string str to buf.

Since :: 2.3

Eina_Bool eina_ustrbuf_append_length	(	Eina_UStrbuf *	buf,
		const Eina_Unicode *	str,
		size_t	length
	)

Appends a string of exact length to a buffer, reallocating as necessary.

Parameters:

[in,out]	buf	The string buffer.
[in]	str	The string to append.
[in]	length	The exact length to use.

Returns:: EINA_TRUE on success, EINA_FALSE if str could not be appended.

This function appends str to buf. str must be of size at most length. It is slightly faster than eina_ustrbuf_append() as it does not compute the size of str. It is useful when dealing with strings of known size, such as eina_stringshare.

See also:: eina_stringshare_length(); eina_ustrbuf_append(); eina_ustrbuf_append_n()

Since :: 2.3

Eina_Bool eina_ustrbuf_append_n	(	Eina_UStrbuf *	buf,
		const Eina_Unicode *	str,
		size_t	maxlen
	)

Appends a string to a buffer, reallocating as necessary, limited by the given length.

Parameters:

[in,out]	buf	The string buffer.
[in]	str	The string to append.
[in]	maxlen	The maximum number of characters to append.

Returns:: EINA_TRUE on success, EINA_FALSE if str could not be appended.

This function appends at most maxlen characters of str to buf. It can't append more than the length of str. It computes the length of str, so is slightly slower than eina_ustrbuf_append_length(). If the length is known beforehand, consider using that variant (maxlen should then be checked so that it is greater than the size of str).

See also:: eina_ustrbuf_append(); eina_ustrbuf_append_length()

Since :: 2.3

Eina_Bool eina_ustrbuf_append_slice	(	Eina_UStrbuf *	buf,
		const Eina_Slice	slice
	)

Appends a slice to a buffer, reallocating as necessary.

Parameters:

[in,out]	buf	The string buffer.
[in]	slice	The slice to append.

Returns:: EINA_TRUE on success, EINA_FALSE if slice could not be appended.

This function appends slice to buf.

Since (EFL) :: 1.19.0

void eina_ustrbuf_free ( Eina_UStrbuf * buf )

Frees a string buffer.

Parameters:

[in,out] buf The string buffer to free.

This function frees the memory of buf. buf must have been created by eina_ustrbuf_new().

Since :: 2.3

Eina_Bool eina_ustrbuf_insert	(	Eina_UStrbuf *	buf,
		const Eina_Unicode *	str,
		size_t	pos
	)

Inserts a string to a buffer, reallocating as necessary.

Parameters:

[in,out]	buf	The string buffer.
[in]	str	The string to insert.
[in]	pos	The position to insert the string.

Returns:: EINA_TRUE on success, EINA_FALSE if str could not be inserted.

This function inserts str to buf at position pos. It computes the length of str, so is slightly slower than eina_ustrbuf_insert_length(). If the length is known beforehand, consider using that variant.

Since :: 2.3

Eina_Bool eina_ustrbuf_insert_char	(	Eina_UStrbuf *	buf,
		Eina_Unicode	c,
		size_t	pos
	)

Inserts a character to a string buffer, reallocating as necessary.

Parameters:

[in,out]	buf	The string buffer.
[in]	c	The char to insert.
[in]	pos	The position to insert the char.

Returns:: EINA_TRUE on success, EINA_FALSE if c could not be inserted.

This function inserts c to buf at position pos.

Since :: 2.3

Eina_Bool eina_ustrbuf_insert_escaped	(	Eina_UStrbuf *	buf,
		const Eina_Unicode *	str,
		size_t	pos
	)

Inserts an escaped string to a buffer, reallocating as necessary.

Parameters:

[in,out]	buf	The string buffer.
[in]	str	The string to insert.
[in]	pos	The position to insert the string.

Returns:: EINA_TRUE on success, EINA_FALSE if str could not be inserted.

This function inserts the escaped string str to buf at position pos.

Since :: 2.3

Eina_Bool eina_ustrbuf_insert_length	(	Eina_UStrbuf *	buf,
		const Eina_Unicode *	str,
		size_t	length,
		size_t	pos
	)

Inserts a string of exact length to a buffer, reallocating as necessary.

Parameters:

[in,out]	buf	The string buffer.
[in]	str	The string to insert.
[in]	length	The exact length to use.
[in]	pos	The position to insert the string.

Returns:: EINA_TRUE on success, EINA_FALSE if str could not be inserted.

This function inserts str into buf. str must be no longer than length. It is slightly faster than eina_ustrbuf_insert() as it does not compute the size of str. It is useful when dealing with strings of known size, such as eina_stringshare.

See also:: eina_stringshare_length(); eina_ustrbuf_insert(); eina_ustrbuf_insert_n()

Since :: 2.3

Eina_Bool eina_ustrbuf_insert_n	(	Eina_UStrbuf *	buf,
		const Eina_Unicode *	str,
		size_t	maxlen,
		size_t	pos
	)

Inserts a string to a buffer, reallocating as necessary. Limited by maxlen.

Parameters:

[in,out]	buf	The string buffer.
[in]	str	The string to insert.
[in]	maxlen	The maximum number of chars to insert.
[in]	pos	The position to insert the string.

Returns:: EINA_TRUE on success, EINA_FALSE if str could not be inserted.

This function inserts str into buf at position pos, with at most maxlen bytes. The number of inserted characters cannot be greater than the length of str. It computes the length of str, so is slightly slower than eina_ustrbuf_insert_length(). If the length is known beforehand, consider using that variant (maxlen should then be checked so that it is greater than the size of str).

Since :: 2.3

Eina_Bool eina_ustrbuf_insert_slice	(	Eina_UStrbuf *	buf,
		const Eina_Slice	slice,
		size_t	pos
	)

Inserts a slice to a buffer, reallocating as necessary.

Parameters:

[in,out]	buf	The string buffer.
[in]	slice	The slice to insert.
[in]	pos	The position to insert the string.

Returns:: EINA_TRUE on success, EINA_FALSE if slice could not be inserted.

This function inserts slice to buf at position pos.

Since (EFL) :: 1.19.0

size_t eina_ustrbuf_length_get ( const Eina_UStrbuf * buf )

Retrieves the length of the string buffer's content.

Parameters:

[in] buf The string buffer.

Returns:: The current length of the string, in bytes.

This function returns the length of buf.

Since :: 2.3

Eina_UStrbuf* eina_ustrbuf_manage_new ( Eina_Unicode * str )

Creates a new string buffer using the passed string.

Parameters:

[in] str The string to manage.

Returns:: Newly allocated string buffer instance, or NULL on error.

This function creates a new unicode string buffer. The passed string is used directly as the buffer, it's effectively the inverse of eina_ustrbuf_string_steal(). The passed string must be malloc'd. To free the resources, use eina_ustrbuf_free().

See also:: eina_ustrbuf_free(); eina_ustrbuf_append(); eina_ustrbuf_string_get()

Since (EFL) :: 1.1.0

Since :: 2.3

Eina_UStrbuf* eina_ustrbuf_manage_new_length	(	Eina_Unicode *	str,
		size_t	length
	)

Creates a new string buffer using the passed string.

Parameters:

[in]	str	The string to manage.
[in]	length	The length of the string.

Returns:: Newly allocated string buffer instance, or NULL on error.

This function creates a new string buffer. The passed string is used directly as the buffer, it's effectively the inverse of eina_ustrbuf_string_steal(). The passed string must be malloc'd. To free the resources, use eina_ustrbuf_free().

See also:: eina_ustrbuf_manage_new()

Since (EFL) :: 1.2.0

Since :: 2.3

Eina_UStrbuf* eina_ustrbuf_new ( void )

Creates a new unicode string buffer.

Returns:: Newly allocated string buffer instance, or NULL on error.

This function creates a new string buffer. To free the resources, use eina_ustrbuf_free().

See also:: eina_ustrbuf_free(); eina_ustrbuf_append(); eina_ustrbuf_string_get()

Since :: 2.3

Eina_Unicode* eina_ustrbuf_release ( Eina_UStrbuf * buf )

Frees the buffer, returning its old contents.

Parameters:

[in,out] buf The string buffer.

Returns:: The string contained by buf. The caller must release the memory of the returned string by calling free().

Since (EFL) :: 1.19

Eina_Bool eina_ustrbuf_remove	(	Eina_UStrbuf *	buf,
		size_t	start,
		size_t	end
	)

Removes a section of the given string buffer.

Parameters:

[in,out]	buf	The string buffer to remove a slice.
[in]	start	The initial (inclusive) slice position to start removing, in bytes.
[in]	end	The final (non-inclusive) slice position to finish removing, in bytes.

Returns:: EINA_TRUE on success, EINA_FALSE on failure.

This function removes a slice of buf, starting at start (inclusive) and ending at end (non-inclusive). Both values are in bytes.

Since :: 2.3

void eina_ustrbuf_reset ( Eina_UStrbuf * buf )

Resets a string buffer.

Parameters:

[in,out] buf The string buffer.

This function resets buf: the buffer len is set to 0, and the string data is set to '\0'. No memory is freed.

Since :: 2.3

Eina_Rw_Slice eina_ustrbuf_rw_slice_get ( const Eina_UStrbuf * buf )

Gets a read-write slice of the buffer contents.

Parameters:

[in] buf The string buffer.

Returns:: A read-write slice for the current contents. It may become invalid as soon as the buf is changed, such as through calls like eina_ustrbuf_append() or eina_ustrbuf_remove().

Since (EFL) :: 1.19.0

Eina_Slice eina_ustrbuf_slice_get ( const Eina_UStrbuf * buf )

Gets a read-only slice of the buffer contents.

Parameters:

[in] buf The string buffer.

Returns:: A read-only slice for the current contents. It may become invalid as soon as buf is changed.

Since (EFL) :: 1.19

void eina_ustrbuf_string_free ( Eina_UStrbuf * buf )

Frees the contents of a string buffer but not the buffer.

Parameters:

[in,out] buf The string buffer.

This function frees the string contained in buf without freeing buf.

Since :: 2.3

const Eina_Unicode* eina_ustrbuf_string_get ( const Eina_UStrbuf * buf )

Retrieves a pointer to the contents of a string buffer.

Parameters:

[in] buf The string buffer.

Returns:: The current string in the string buffer.

This function returns the string contained in buf. The returned value must not be modified and will no longer be valid if buf is modified. In other words, calling eina_ustrbuf_append() or similar functions will make this pointer invalid.

See also:: eina_ustrbuf_string_steal()

Since :: 2.3

Eina_Unicode* eina_ustrbuf_string_steal ( Eina_UStrbuf * buf )

Steals the contents of a string buffer.

Parameters:

[in] buf The string buffer.

Returns:: The string that was contained in buf.

This function returns the string contained in buf. buf is then initialized and does not own the returned string anymore. The caller must release the memory of the returned string by calling free().

See also:: eina_ustrbuf_string_get()

Since :: 2.3

Functions

Typedefs

Defines

Define Documentation

Typedef Documentation

Function Documentation