10-09-2001
Quote:
Originally posted by jpprial
[[ ! -z $rstate -o -z $rstate ]] && ((nf=nf+1))
but it complains about the -o option.
Don't do that. The nf stuff is to detect completely blank lines. If you really wanted to unconditionally increment nf at this point, there is no need to add a test that cannot fail. ((nf=nf+1)) could be used all by itself. Add with ksh [[ or it handled by | not -o.
If you don't care whether or not the field rstate has something, just don't test it. Instead, test the stuff you do care about. You are already checking the id field for the number of characters. That leaves the action field. You can just add a "if [[ -z $action ]]" or maybe you'd rather get the length of the action field and see if it's non-zero.
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LEARN ABOUT CENTOS
xkbsasetscreen
XkbSASetScreen(3) XKB FUNCTIONS XkbSASetScreen(3)
NAME
XkbSASetScreen - Sets the screenXXX field of act from s
SYNOPSIS
void XkbSASetScreen (XkbSwitchScreenAction act, int s);
ARGUMENTS
- act action in which to set screenXXX
- s value to set in screenXXX
DESCRIPTION
Actions associated with the XkbSwitchScreen action structure change the active screen on a multiscreen display.
The type field of the XkbSwitchScreenAction structure should always be XkbSA_SwitchScreen.
The flags field is composed of the bitwise inclusive OR of the masks shown in Table 1.
Table 1 Switch Screen Action Flags
-------------------------------------------------------------------
Flag Meaning
-------------------------------------------------------------------
XkbSA_SwitchAbsolute If set, the screenXXX field represents
the index of the new screen. Otherwise,
it represents an offset from the current
screen to the new screen.
XkbSA_SwitchApplication If not set, the action should switch to
another screen on the same server. Oth-
erwise, it should switch to another X
server or application that shares the
same physical display.
The screenXXX field is a signed character value that represents either the relative or absolute screen index, depending on the state of the
XkbSA_SwitchAbsolute bit in the flags field. Xkb provides the following macros to convert between the integer and signed character value
for screen numbers in XkbSwitchScreenAction structures.
STRUCTURES
typedef struct _XkbSwitchScreenAction {
unsigned char type; /* XkbSA_SwitchScreen */
unsigned char flags; /* controls screen switching */
char screenXXX; /* screen number or delta */
} XkbSwitchScreenAction;
NOTES
This action is optional. Servers are free to ignore the action or any of its flags if they do not support the requested behavior. If the
action is ignored, it behaves like XkbSA_NoAction. Otherwise, key press and key release events do not generate an event.
X Version 11 libX11 1.6.0 XkbSASetScreen(3)