XmStringGetNextComponent(3)
NAME
XmStringGetNextComponent --- A compound string function that returns the type and value of the next component in a compound string "XmStringGetNextComponent" "compound string functions" "XmStringGetNextComponent"
SYNOPSIS
#include <Xm/Xm.h> XmStringComponentType XmStringGetNextComponent( XmStringContext context, char **text, XmStringTag *tag, XmStringDirection *direction, XmStringComponentType *unknown_tag, unsigned short *unknown_length, unsigned char **unknown_value);
DESCRIPTION
This function is obsolete and exists for compatibility with previous
releases. It is replaced by XmStringGetNextTriple.
XmStringGetNextComponent returns the type and value of the next
component in the compound string identified by context. Components are
returned one at a time. On return, only some output parameters will be
valid; which ones can be determined by examining the returned component
type. The following table describes the valid returns for each
component type.
Valid Fields Component Type
tag XmSTRING_COMPONENT_LOCALE,
XmSTRING_COMPONENT_TAG
text XmSTRING_COMPONENT_LOCALE_TEXT,
XmSTRING_COMPONENT_TEXT,
XmSTRING_COMPONENT_WIDECHAR_TEXT
direction XmSTRING_COMPONENT_DIRECTION
unknown_tag, XmSTRING_COMPONENT_LAYOUT_POP,
unknown_length, XmSTRING_COMPONENT_LAYOUT_PUSH,
unknown_value XmSTRING_COMPONENT_TAB,
XmSTRING_COMPONENT_RENDITION_BEGIN,
XmSTRING_COMPONENT_RENDITION_END
no valid field XmSTRING_COMPONENT_SEPARATOR,
XmSTRING_COMPONENT_END,
XmSTRING_COMPONENT_UNKNOWN
Note that several components produce a return value of
XmSTRING_COMPONENT_UNKNOWN. The data returned by these components is
returned in the unknown_tag, unknown_length, and unknown_value fields.
This apparent inconsistency is designed to accommodate older
applications that may not be equipped to handle the newer component
types of Motif version 2.0 and beyond. Consequently, the use of this
procedure is not recommended. Instead, use the XmStringGetNextTriple
procedure, which provides all the functionality of
XmStringGetNextComponent, and is fully compatible with the newer
component types.
If the function return value is XmSTRING_COMPONENT_LOCALE_TEXT or
XmSTRING_COMPONENT_TEXT, the the function allocates space to hold the
returned text. If the function return value is
XmSTRING_COMPONENT_FONTLIST_ELEMENT_TAG, or XmSTRING_COMPONENT_TAG,
then the function allocates space to hold the returned tag. The
application is responsible for managing the allocated space. The
application can recover the allocated space by calling XtFree.
context Specifies the string context structure that was allocated by
the XmStringInitContext function.
text Specifies a pointer to a NULL terminated string.
tag Specifies a pointer to the tag component associated with the
text. The value XmFONTLIST_DEFAULT_TAG identifies a locale
text segment.
direction Specifies a pointer to the direction of the text.
unknown_tag
Specifies a pointer to the tag of an unknown component.
unknown_length
Specifies a pointer to the length of an unknown component.
unknown_value
Specifies a pointer to the value of an unknown component.
RETURN
Returns the type of component found. Refer to the XmStringComponentType(3) reference page for a list of component types.
RELATED
XmStringComponentType(3), XmStringCreate(3), and XmStringInitContext(3). XmStringGetNextComponent(3)
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