Index

Package: Text_Iter

Description

package Gtk.Text_Iter is
A Gtk_Text_Iter represents a location in the text. It becomes invalid if the characters/pixmaps/widgets (indexable objects) in the text buffer are changed.

Binding from C File version 2.8.17

Packages

Find_Chars (generic)

Full description

Types

Gtk_Text_Iter 

type Gtk_Text_Iter is limited private;

Gtk_Text_Iter_Access 

type Gtk_Text_Iter_Access is access all Gtk_Text_Iter;

Gtk_Text_Search_Flags 

type Gtk_Text_Search_Flags is mod 2 ** 8;

Constants & Global variables

Visible_Only (Gtk_Text_Search_Flags) 

Visible_Only : constant Gtk_Text_Search_Flags := 2 ** 0;

Text_Only (Gtk_Text_Search_Flags) 

Text_Only    : constant Gtk_Text_Search_Flags := 2 ** 1;

Subprograms & Entries

Get_Type 

function Get_Type return Glib.GType;
Return the internal type used for a Gtk_Text_Iter

Copy 

procedure Copy 
(Source: Gtk_Text_Iter;
Dest: out Gtk_Text_Iter);
Create a copy of Source.

Forward_Char 

procedure Forward_Char 
(Iter: in out Gtk_Text_Iter;
Result: out Boolean);
Move Iter forward by one character offset. Note that images embedded in the buffer occupy 1 character slot, so Forward_Char may actually move onto an image instead of a character, if you have images in your buffer. If Iter is the end iterator or one character before it, Iter will now point at the end iterator, and Forward_Char returns False for convenience when writing loops.

Backward_Char 

procedure Backward_Char 
(Iter: in out Gtk_Text_Iter;
Result: out Boolean);
Move backward by one character offset. Return True if movement was possible; if Iter was the first in the buffer (character offset 0), return False for convenience when writing loops.

Forward_Chars 

procedure Forward_Chars 
(Iter: in out Gtk_Text_Iter;
Count: Gint := 1;
Result: out Boolean);
Move Count characters if possible. If Count would move past the start or end of the buffer, move to the start or end of the buffer). Result indicates whether the new position of Iter is different from its original position, and dereferenceable (the last iterator in the buffer is not dereferenceable). If Count is 0, this procedure does nothing and returns False.

Backward_Chars 

procedure Backward_Chars 
(Iter: in out Gtk_Text_Iter;
Count: Gint := 1;
Result: out Boolean);
Move Count characters backward, if possible. If Count would move past the start or end of the buffer, moves to the start or end of the buffer). Result indicates whether the iterator moved onto a dereferenceable position; if the iterator didn't move, or moved onto the end iterator, then False is returned. If Count is 0, the function does nothing and returns False.

Set_Offset 

procedure Set_Offset 
(Iter: in out Gtk_Text_Iter;
Char_Offset: Gint);

Get_Offset 

function  Get_Offset 
(Iter: Gtk_Text_Iter) return Gint;
Set or return the character offset of an iterator. Each character in a Gtk_Text_Buffer has an offset, starting with 0 for the first character in the buffer. Use Gtk.Text_Buffer.Get_Iter_At_Offset to convert an offset back into an iterator.

Starts_Word 

function Starts_Word 
(Iter: Gtk_Text_Iter) return Boolean;
Determine whether Iter begins a natural-language word. Word breaks are determined by Pango and should be correct for nearly any language (if not, the correct fix would be to the Pango word break algorithms.

Ends_Word 

function Ends_Word 
(Iter: Gtk_Text_Iter) return Boolean;
Determine whether Iter ends a natural-language word. Word breaks are determined by Pango and should be correct for nearly any language (if not, the correct fix would be to the Pango word break algorithms).

Inside_Word 

function Inside_Word 
(Iter: Gtk_Text_Iter) return Boolean;
Determine whether Iter is inside a natural-language word (as opposed to say inside some whitespace). Word breaks are determined by Pango and should be correct for nearly any language (if not, the correct fix would be to the Pango word break algorithms).

Forward_Word_End 

procedure Forward_Word_End 
(Iter: in out Gtk_Text_Iter;
Result: out Boolean);
Move forward to the next word end. If Iter is currently on a word end, move forward to the next one after that. Word breaks are determined by Pango and should be correct for nearly any language (if not, the correct fix would be to the Pango word break algorithms).

Forward_Word_Ends 

procedure Forward_Word_Ends 
(Iter: in out Gtk_Text_Iter;
Count: Gint := 1;
Result: out Boolean);
Call Forward_Word_End up to Count times.

Forward_Visible_Word_End 

procedure Forward_Visible_Word_End 
(Iter: in out Gtk_Text_Iter;
Result: out Boolean);
Moves forward to the next visible word end. (If Iter is currently on word end, moves forward to the next one after that.) Word breaks are determined by Pango and should be correct for nearly any language (if not, the correct fix would be to the Pango word break algorithms).

Forward_Visible_Word_Ends 

procedure Forward_Visible_Word_Ends 
(Iter: in out Gtk_Text_Iter;
Count: Gint := 1;
Result: out Boolean);
Calls Forward_Visible_Word_End up to Count times

Backward_Word_Start 

procedure Backward_Word_Start 
(Iter: in out Gtk_Text_Iter;
Result: out Boolean);
Move backward to the next word start. If Iter is currently on a word start, move backward to the next one after that.

Backward_Word_Starts 

procedure Backward_Word_Starts 
(Iter: in out Gtk_Text_Iter;
Count: Gint := 1;
Result: out Boolean);
Call Backward_Word_Start up to Count times.

Backward_Visible_Word_Start 

procedure Backward_Visible_Word_Start 
(Iter: in out Gtk_Text_Iter;
Result: out Boolean);
Moves backward to the previous visible word start. (If Iter is currently on a word start, moves backward to the next one after that.) Word breaks are determined by Pango and should be correct for nearly any language (if not, the correct fix would be to the Pango word break algorithms).

Backward_Visible_Word_Starts 

procedure Backward_Visible_Word_Starts 
(Iter: Gtk_Text_Iter;
Count: Gint := 1;
Result: in out Boolean);
Move backward up to Count previous visible word starts.

Starts_Sentence 

function Starts_Sentence 
(Iter: Gtk_Text_Iter) return Boolean;
Determine whether Iter begins a sentence. Sentence boundaries are determined by Pango and should be correct for nearly any language (if not, the correct fix would be to the Pango text boundary algorithms).

Ends_Sentence 

function Ends_Sentence 
(Iter: Gtk_Text_Iter) return Boolean;
Determine whether Iter ends a sentence. Sentence boundaries are determined by Pango and should be correct for nearly any language (if not, the correct fix would be to the Pango text boundary algorithms).

Inside_Sentence 

function Inside_Sentence 
(Iter: Gtk_Text_Iter) return Boolean;
Determine whether Iter is inside a sentence (as opposed to in between two sentences, e.g. after a period and before the first letter of the next sentence). Sentence boundaries are determined by Pango and should be correct for nearly any language (if not, the correct fix would be to the Pango text boundary algorithms).

Forward_Sentence_End 

procedure Forward_Sentence_End 
(Iter: in out Gtk_Text_Iter;
Result: out Boolean);
Move forward to the next sentence end. If Iter is at the end of a sentence, move to the next end of sentence.

Backward_Sentence_Start 

procedure Backward_Sentence_Start 
(Iter: in out Gtk_Text_Iter;
Result: out Boolean);
Move backward to the next sentence start. If Iter is already at the start of a sentence, move backward to the next one.

Forward_Sentence_Ends 

procedure Forward_Sentence_Ends 
(Iter: in out Gtk_Text_Iter;
Count: Gint := 1;
Result: out Boolean);
Call Forward_Sentence_End up to Count times.

Backward_Sentence_Starts 

procedure Backward_Sentence_Starts 
(Iter: in out Gtk_Text_Iter;
Count: Gint := 1;
Result: out Boolean);
Call Backward_Sentence_Starts up to Count times.

Set_Line 

procedure Set_Line 
(Iter: in out Gtk_Text_Iter;
Line_Number: Gint);

Get_Line 

function  Get_Line 
(Iter: Gtk_Text_Iter) return Gint;
Set or return the line number containing the iterator. Lines in a Gtk_Text_Buffer are numbered beginning with 0 for the first line in the buffer.

Set_Line_Offset 

procedure Set_Line_Offset 
(Iter: in out Gtk_Text_Iter;
Char_On_Line: Gint);

Get_Line_Offset 

function Get_Line_Offset 
(Iter: Gtk_Text_Iter) return Gint;
Move Iter within a line, to a new character (not byte) offset. The given character offset must be less than or equal to the number of characters in the line; if equal, Iter moves to the start of the next line. See Set_Line_Index if you have a byte index rather than a character offset. The first character on the line has offset 0.

Set_Line_Index 

procedure Set_Line_Index 
(Iter: in out Gtk_Text_Iter;
Byte_On_Line: Gint);

Get_Line_Index 

function Get_Line_Index 
(Iter: Gtk_Text_Iter) return Gint;
Same as Set_Line_Offset, but work with a byte index. The given byte index must be at the start of a character, it can't be in the middle of a UTF-8 encoded character. Remember that Gtk_Text_Buffer encodes text in UTF-8, and that characters can require a variable number of bytes to represent.

Set_Visible_Line_Offset 

procedure Set_Visible_Line_Offset 
(Iter: in out Gtk_Text_Iter;
Char_On_Line: Gint);

Get_Visible_Line_Offset 

function Get_Visible_Line_Offset 
(Iter: Gtk_Text_Iter) return Gint;
Sets or returns the offset in characters from the start of the line to the given Iter, not counting characters that are invisible due to tags with the "invisible" flag toggled on.

Set_Visible_Line_Index 

procedure Set_Visible_Line_Index 
(Iter: in out Gtk_Text_Iter;
Byte_On_Line: Gint);

Get_Visible_Line_Index 

function Get_Visible_Line_Index 
(Iter: Gtk_Text_Iter) return Gint;
Set or returns the number of bytes from the start of the line to the given Iter, not counting bytes that are invisible due to tags with the "invisible" flag toggled on.

Starts_Line 

function Starts_Line 
(Iter: Gtk_Text_Iter) return Boolean;
Return True if Iter begins a paragraph. i.e. if Get_Line_Offset would return 0. However this function is potentially more efficient than Get_Line_Offset because it doesn't have to compute the offset, it just has to see whether it's 0.

Ends_Line 

function Ends_Line 
(Iter: Gtk_Text_Iter) return Boolean;
Return True if Iter points to the start of the paragraph delimiter characters for a line (delimiters will be either a newline, a carriage return, a carriage return followed by a newline, or a Unicode paragraph separator character). Note that an iterator pointing to the ASCII.LF of a ASCII.CR & ASCII.LF pair will not be counted as the end of a line, the line ends before the ASCII.CR.

Get_Chars_In_Line 

function Get_Chars_In_Line 
(Iter: Gtk_Text_Iter) return Gint;
Return the number of characters in the line containing Iter, including the paragraph delimiters.

Get_Bytes_In_Line 

function Get_Bytes_In_Line 
(Iter: Gtk_Text_Iter) return Gint;
Return the number of bytes in the line containing Iter, including the paragraph delimiters.

Forward_Line 

procedure Forward_Line 
(Iter: in out Gtk_Text_Iter;
Result: out Boolean);
Move Iter to the start of the next line. Return True if there was a next line to move to, and False if iter was simply moved to the end of the buffer and is now not dereferenceable, or if Iter was already at the end of the buffer.

Forward_Lines 

procedure Forward_Lines 
(Iter: in out Gtk_Text_Iter;
Count: Gint := 1;
Result: out Boolean);
Call Forward_Line, up to Count times.

Forward_Visible_Line 

procedure Forward_Visible_Line 
(Iter: in out Gtk_Text_Iter;
Result: out Boolean);
Moves Iter to the start of the next visible line. Returns True if there was a next line to move to, and False if Iter was simply moved to the end of the buffer and is now not dereferenceable, or if Iter was already at the end of the buffer.

Forward_Visible_Lines 

procedure Forward_Visible_Lines 
(Iter: in out Gtk_Text_Iter;
Count: Gint := 1;
Result: out Boolean);
Moves Count visible lines forward, if possible (if Count would move past the start or end of the buffer, moves to the start or end of the buffer). The return value indicates whether the iterator moved onto a dereferenceable position; if the iterator didn't move, or moved onto the end iterator, then False is returned. If Count is 0, the function does nothing and returns False. If Count is negative, moves backward by 0 - Count lines.

Forward_To_Line_End 

procedure Forward_To_Line_End 
(Iter: in out Gtk_Text_Iter;
Result: out Boolean);
Move the iterator to point to the paragraph delimiter characters, which will be either a newline, a carriage return, a carriage return/newline in sequence, or the Unicode paragraph separator character. If the iterator is already at the paragraph delimiter characters, move to the paragraph delimiter characters for the next line.

Backward_Line 

procedure Backward_Line 
(Iter: in out Gtk_Text_Iter;
Result: out Boolean);
Move Iter to the start of the previous line. Return True if Iter could be moved; i.e. if Iter was at character offset 0, this function returns False. Therefore if Iter was already on line 0, but not at the start of the line, Iter is snapped to the start of the line and the function returns True. (Note that this implies that in a loop calling this function, the line number may not change on every iteration, if your first iteration is on line 0)

Backward_Lines 

procedure Backward_Lines 
(Iter: in out Gtk_Text_Iter;
Count: Gint := 1;
Result: out Boolean);
Call Backward_Line, up to Count times.

Backward_Visible_Line 

procedure Backward_Visible_Line 
(Iter: in out Gtk_Text_Iter;
Result: out Boolean);
Moves Iter to the start of the previous visible line. Returns True if Iter could be moved; i.e. if Iter was at character offset 0, this function returns False. Therefore if Iter was already on line 0, but not at the start of the line, Iter is snapped to the start of the line and the function returns True. (Note that this implies that in a loop calling this function, the line number may not change on every iteration, if your first iteration is on line 0.)

Backward_Visible_Lines 

procedure Backward_Visible_Lines 
(Iter: in out Gtk_Text_Iter;
Count: Gint := 1;
Result: out Boolean);
Moves Count visible lines backward, if possible (if Count would move past the start or end of the buffer, moves to the start or end of the buffer). The return value indicates whether the iterator moved onto a dereferenceable position; if the iterator didn't move, or moved onto the end iterator, then False is returned. If Count is 0, the function does nothing and returns False. If Count is negative, moves forward by 0 - Count lines.

Is_End 

function Is_End 
(Iter: Gtk_Text_Iter) return Boolean;
Return True if Iter is the end iterator. i.e. one past the last dereferenceable iterator in the buffer. This is the most efficient way to check whether an iterator is the end iterator.

Is_Start 

function Is_Start 
(Iter: Gtk_Text_Iter) return Boolean;
Return True if Iter is the first iterator in the buffer, that is if Iter has a character offset of 0.

Forward_To_End 

procedure Forward_To_End 
(Iter: in out Gtk_Text_Iter);
Move Iter forward to the "end iterator", which points one past the last valid character in the buffer. Get_Char called on the end iterator returns 0, which is convenient for writing loops.

Get_Char 

function Get_Char 
(Iter: Gtk_Text_Iter) return Gunichar;
Return the character immediately following Iter. If Iter is at the end of the buffer, then return ASCII.NUL.

Get_Char 

function Get_Char 
(Iter: Gtk_Text_Iter) return Character;
Return the character immediately following Iter. If Iter is at the end of the buffer, then return ASCII.NUL. Note that this function assumes that the text is encoded in ASCII format. If this is not the case, use the Get_Char function that returns a Gunichar instead.

Get_Slice 

function Get_Slice 
(Start: Gtk_Text_Iter;
The_End: Gtk_Text_Iter) return UTF8_String;
Return the text in the given range. A "slice" is an array of characters encoded in UTF-8 format, including the Unicode "unknown" character 16#FFFC# for iterable non-character elements in the buffer, such as images. Because images are encoded in the slice, byte and character offsets in the returned array will correspond to byte offsets in the text buffer. Note that 16#FFFC# can occur in normal text as well, so it is not a reliable indicator that a pixbuf or widget is in the buffer.

Get_Slice 

function Get_Slice 
(Start: Gtk_Text_Iter;
The_End: Gtk_Text_Iter) return Interfaces.C.Strings.chars_ptr;
Same as above, but returns the row C string. The caller is responsible for freeing the string returned.

Get_Text 

function Get_Text 
(Start: Gtk_Text_Iter;
The_End: Gtk_Text_Iter) return UTF8_String;
Return text in the given range. If the range contains non-text elements such as images, the character and byte offsets in the returned string will not correspond to character and byte offsets in the buffer. If you want offsets to correspond, see Get_Slice.

Get_Visible_Slice 

function Get_Visible_Slice 
(Start: Gtk_Text_Iter;
The_End: Gtk_Text_Iter) return UTF8_String;
Like Get_Slice, but invisible text is not included. Invisible text is usually invisible because a Gtk_Text_Tag with the "invisible" attribute turned on has been applied to it.

Get_Visible_Text 

function Get_Visible_Text 
(Start: Gtk_Text_Iter;
The_End: Gtk_Text_Iter) return UTF8_String;
Like Get_Text, but invisible text is not included. Invisible text is usually invisible because a Gtk_Text_Tag with the "invisible" attribute turned on has been applied to it.

Get_Pixbuf 

function Get_Pixbuf 
(Iter: Gtk_Text_Iter) return Gdk.Pixbuf.Gdk_Pixbuf;
If the location pointed to by Iter contains a pixbuf, the pixbuf is returned (with no new reference count added). Otherwise, null is returned.

Begins_Tag 

function Begins_Tag 
(Iter: Gtk_Text_Iter;
Tag: Gtk.Text_Tag.Gtk_Text_Tag := null) return Boolean;
Return True if Tag is toggled on at exactly this point. If Tag is null, return True if any tag is toggled on at this point. Return True if Iter is the start of the tagged range; Has_Tag tells you whether an iterator is within a tagged range.

Ends_Tag 

function Ends_Tag 
(Iter: Gtk_Text_Iter;
Tag: Gtk.Text_Tag.Gtk_Text_Tag := null) return Boolean;
Return True if Tag is toggled off at exactly this point. If Tag is null, return True if any tag is toggled off at this point. Note that the Ends_Tag return True if Iter is the end of the tagged range; Has_Tag tells you whether an iterator is within a tagged range.

Toggles_Tag 

function Toggles_Tag 
(Iter: Gtk_Text_Iter;
Tag: Gtk.Text_Tag.Gtk_Text_Tag := null) return Boolean;
Whether a range with Tag applied to it begins or ends at Iter. Equivalent to "Begins_Tag (Iter, Tag) or else Ends_Tag (Iter, Tag)".

Has_Tag 

function Has_Tag 
(Iter: Gtk_Text_Iter;
Tag: Gtk.Text_Tag.Gtk_Text_Tag := null) return Boolean;
Return True if Iter is within a range tagged with Tag.

Get_Tags 

function Get_Tags 
(Iter: Gtk_Text_Iter) return Gtk.Text_Tag.Text_Tag_List.GSlist;
Return a list of tags that apply to Iter, in ascending order of priority (highest-priority tags are last). The Gtk_Text_Tag in the list don't have a reference added, but you have to free the list itself.

Forward_To_Tag_Toggle 

procedure Forward_To_Tag_Toggle 
(Iter: in out Gtk_Text_Iter;
Tag: Gtk.Text_Tag.Gtk_Text_Tag := null;
Result: out Boolean);
Move forward to the next toggle (on or off) of the Gtk_Text_Tag Tag, or to the next toggle of any tag if Tag is null. If no matching tag toggles are found, return False, otherwise True. Do not return toggles located at Iter, only toggles after Iter. Set Iter to the location of the toggle, or to the end of the buffer if no toggle is found.

Backward_To_Tag_Toggle 

procedure Backward_To_Tag_Toggle 
(Iter: in out Gtk_Text_Iter;
Tag: Gtk.Text_Tag.Gtk_Text_Tag := null;
Result: out Boolean);
Move backward to the next toggle (on or off) of the Gtk_Text_Tag Tag, or to the next toggle of any tag if Tag is null. If no matching tag toggles are found, return False, otherwise True. Do not return toggles located at Iter, only toggles before Iter. Set Iter to the location of the toggle, or the start of the buffer if no toggle is found.

Get_Toggled_Tags 

function Get_Toggled_Tags 
(Iter: Gtk_Text_Iter;
Toggled_On: Boolean) return Glib.Object.Object_List.GSlist;
Returns a list of #GtkTextTag that are toggled on or off at this point. (If Toggled_On is True, the list contains tags that are toggled on.) If a tag is toggled on at Iter, then some non-empty range of characters following Iter has that tag applied to it. If a tag is toggled off, then some non-empty range following Iter does not have the tag applied to it. The returned list should be freed by the caller.

Editable 

function Editable 
(Iter: Gtk_Text_Iter;
Default_Setting: Boolean := True) return Boolean;
Return whether Iter is within an editable region of text. Non-editable text is "locked" and can't be changed by the user via Gtk_Text_View. This function is simply a convenience wrapper around Get_Attributes. If no tags applied to this text affect editability, Default_Setting will be returned.

Can_Insert 

function Can_Insert 
(Iter: Gtk_Text_Iter;
Default_Editability: Boolean) return Boolean;
Return whether text inserted at Iter would be editable. Considering the default editability of the buffer, and tags that affect editability, determines whether text inserted at Iter would be editable. If text inserted at Iter would be editable then the user should be allowed to insert text at Iter. Gtk.Text_Buffer.Insert_Interactive uses this function to decide whether insertions are allowed at a given position.

Get_Language 

function Get_Language 
(Iter: Gtk_Text_Iter) return UTF8_String;
A convenience wrapper around Get_Attributes, which returns the language in effect at Iter. If no tags affecting language apply to Iter, the return value is identical to that of Gtk.Get_Default_Language.

Get_Attributes 

procedure Get_Attributes 
(Iter: Gtk_Text_Iter;
Values: in out Gtk.Text_Attributes.Gtk_Text_Attributes;
Modified: out Boolean);
Computes the effect of any tags applied to this spot in the text. The Values parameter should be initialized to the default settings you wish to use if no tags are in effect. You'd typically obtain the defaults from gtk.text_view.get_default_attributes. Get_Attributes will modify Values, applying the effects of any tags present at Iter. If any tags affected Values, the function returns True.

Is_Cursor_Position 

function Is_Cursor_Position 
(Iter: Gtk_Text_Iter) return Boolean;
Return True if the cursor can be placed at Iter. See Forward_Cursor_Position for details on what a cursor position is.

Forward_Cursor_Position 

procedure Forward_Cursor_Position 
(Iter: in out Gtk_Text_Iter;
Result: out Boolean);
Move Iter forward by a single cursor position. Cursor positions are (unsurprisingly) positions where the cursor can appear. Perhaps surprisingly, there may not be a cursor position between all characters. The most common example for European languages would be a carriage return/newline sequence. For some Unicode characters, the equivalent of say the letter "a" with an accent mark will be represented as two characters, first the letter then a "combining mark" that causes the accent to be rendered; so the cursor can't go between those two characters.

Backward_Cursor_Position 

procedure Backward_Cursor_Position 
(Iter: in out Gtk_Text_Iter;
Result: out Boolean);
Like Forward_Cursor_Position, but moves backward.

Forward_Cursor_Positions 

procedure Forward_Cursor_Positions 
(Iter: in out Gtk_Text_Iter;
Count: Gint := 1;
Result: out Boolean);
Call Forward_Cursor_Position up to Count times.

Forward_Visible_Cursor_Position 

procedure Forward_Visible_Cursor_Position 
(Iter: in out Gtk_Text_Iter;
Result: out Boolean);
Moves Iter forward to the next visible cursor position. Return True if the new position is valid

Forward_Visible_Cursor_Positions 

procedure Forward_Visible_Cursor_Positions 
(Iter: in out Gtk_Text_Iter;
Count: Gint := 1;
Result: out Boolean);
Moves up to Count visible cursor positions. See Forward_Cursor_Position for details. Return True if the cursor could be moved.

Backward_Cursor_Positions 

procedure Backward_Cursor_Positions 
(Iter: in out Gtk_Text_Iter;
Count: Gint := 1;
Result: out Boolean);
Call Backward_Cursor_Position up to Count times.

Backward_Visible_Cursor_Position 

procedure Backward_Visible_Cursor_Position 
(Iter: in out Gtk_Text_Iter;
Result: out Boolean);
Moves Iter backward to the previous visible cursor position. Return True if the new position is valid.

Backward_Visible_Cursor_Positions 

procedure Backward_Visible_Cursor_Positions 
(Iter: in out Gtk_Text_Iter;
Count: Gint := 1;
Result: out Boolean);
Moves up to Count visible cursor positions. Return True if the new position is valid.

Get_Child_Anchor 

function Get_Child_Anchor 
(Iter: Gtk_Text_Iter) return Gtk.Text_Child.Gtk_Text_Child_Anchor;
If the location pointed to by Iter contains a child anchor, the anchor is returned (with no new reference count added). Otherwise, null is returned.

Get_Marks 

function Get_Marks 
(Iter: Gtk_Text_Iter) return Glib.Object.Object_List.GSlist;
Returns a list of all Gtk_Text_Mark at this location. Because marks are not iterable (they don't take up any "space" in the buffer, they are just marks in between iterable locations), multiple marks can exist in the same place. The returned list is not in any meaningful order.

Forward_Search 

procedure Forward_Search 
(Iter: Gtk_Text_Iter;
Str: UTF8_String;
Flags: Gtk_Text_Search_Flags;
Match_Start: out Gtk_Text_Iter;
Match_End: out Gtk_Text_Iter;
Limit: Gtk_Text_Iter;
Result: out Boolean);
Search forward for Str. Any match is returned as the range Match_Start, Match_End. If you specify Visible_Only or Slice, the match may have invisible text, pixbufs, or child widgets interspersed in Str. Iter: start of search Str: a search string Match_Start: return location for start of match, or null Match_End: return location for end of match, or null Limit: bound for the search, or null for the end of the buffer Result: whether a match was found.

Backward_Search 

procedure Backward_Search 
(Iter: Gtk_Text_Iter;
Str: UTF8_String;
Flags: Gtk_Text_Search_Flags;
Match_Start: out Gtk_Text_Iter;
Match_End: out Gtk_Text_Iter;
Limit: Gtk_Text_Iter;
Result: out Boolean);
Same as Forward_Search, but move backward.

Equal 

function Equal 
(Lhs: Gtk_Text_Iter;
Rhs: Gtk_Text_Iter) return Boolean;
Test whether two iterators are equal, using the fastest possible mechanism. This function is very fast; you can expect it to perform better than e.g. getting the character offset for each iterator and comparing the offsets yourself. Also, it's a bit faster than Compare.

Compare 

function Compare 
(Lhs: Gtk_Text_Iter;
Rhs: Gtk_Text_Iter) return Gint;
A quick sort-style function that return negative if Lhs is less than Rhs, positive if Lhs is greater than Rhs, and 0 if they're equal. Ordering is in character offset order, i.e. the first character in the buffer is less than the second character in the buffer.

In_Range 

function In_Range 
(Iter: Gtk_Text_Iter;
Start: Gtk_Text_Iter;
The_End: Gtk_Text_Iter) return Boolean;
Start and End must be in order, unlike most text buffer functions, for efficiency reasons. Return True if Iter falls in the range [Start, End)

Order 

procedure Order 
(First: in out Gtk_Text_Iter;
Second: in out Gtk_Text_Iter);
Swap the value of First and Second if Second comes before First in the buffer. That is, ensures that First and Second are in sequence. Most text buffer functions that take a range call this automatically on your behalf, so there's no real reason to call it yourself in those cases. There are some exceptions, such as In_Range, that expect a pre-sorted range.

Set_Text_Iter 

procedure Set_Text_Iter 
(Val: in out Glib.Values.GValue;
Iter: Gtk_Text_Iter);
Set the value of the given GValue to Iter. Note that Iter is stored by reference, which means no copy of Iter is made. Iter should remain allocated as long as Val is being used.

Get_Text_Iter 

procedure Get_Text_Iter 
(Val: Glib.Values.GValue;
Iter: out Gtk_Text_Iter);
Extract the iterator from the given GValue. Note that the iterator returned is a copy of the iterator referenced by the give GValue. Modifying the iterator returned does not modify the iterator referenced by the GValue.