Callback Resources

All callback resources also reference XmAnyCallbackStruct.

XmNdocumentCallback is activated when XmHTMLParser has finished parsing a document and before XmHTMLParserSetString or XmHTMLParserUpdateSource returns.

XmNmodifyVerifyCallback is activated when XmHTMLParser is about to insert or remove text in or from the current source text.

XmNparserCallback is activated when XmHTMLParser encounters a HTML element that is in error. XmHTMLParser detects unknown, unbalanced, badly placed as well as unterminated HTML elements and HTML 3.2 violations.

XmHTMLDocumentCallbackStruct

typedef struct
{
	int		reason;		/* the reason the callback was called */
	XEvent		*event;		/* always NULL */
	Boolean		html32;		/* True when document was HTML 3.2 conforming */
	Boolean		verified;	/* True when document has been verified */
	Boolean		balanced;	/* True when parser tree is balanced */
	Boolean		terminated;	/* True if parser is terminated prematurely */
	int		pass_level;	/* current parser level count. */
	Boolean		redo;		/* See below */
}XmHTMLDocumentCallbackStruct;

typedef struct{
	int 		reason;		/* the reason the callback was called */
	XEvent		*event;		/* always NULL */
	Boolean		doit;		/* unused */
	int		action;		/* type of modification */
	int		line_no;	/* current line number in input text */
	int		start_pos;	/* start of text to change */
	int		end_pos;	/* end of text to change */
	XmHTMLTextBlock	text;		/* describes text to remove or insert */
}XmHTMLVerifyCallbackStruct, *XmHTMLVerifyPtr;

typedef struct{
	String		ptr;		/* pointer to text to remove/insert */
	int		len;		/* length of this text */
}XmHTMLTextBlockRec, *XmHTMLTextBlock;

typedef struct{
	int		reason;		/* the reason the callback was called */
	XEvent		*event;		/* always NULL */
	int		errno;		/* total error count uptil now */
	int		line_no;	/* current line number in input text */
	int		start_pos;	/* start of text in error */
	int		end_pos;	/* end of text in error */
	parserError	error;		/* type of error */
	unsigned char	action;		/* suggested correction action */
	XmHTMLTextBlock	repair;		/* proposed element to insert */
	XmHTMLTextBlock	current;	/* current element */
	XmHTMLTextBlock	offender;	/* offending element */
}XmHTMLParserCallbackStruct, *XmHTMLParserPtr;