# This file is a Tcl script to test the code in the file tkTextTag.c. # This file is organized in the standard fashion for Tcl tests. # # Copyright (c) 1994 The Regents of the University of California. # Copyright (c) 1994-1996 Sun Microsystems, Inc. # Copyright (c) 1998-1999 by Scriptics Corporation. # All rights reserved. # # RCS: @(#) $Id: textTag.test,v 1.6 2002/07/13 20:28:35 dgp Exp $ package require tcltest 2.1 namespace import -force tcltest::configure namespace import -force tcltest::testsDirectory configure -testdir [file join [pwd] [file dirname [info script]]] configure -loadfile [file join [testsDirectory] constraints.tcl] tcltest::loadTestedCommands catch {destroy .t} testConstraint courier12 [expr {[catch { text .t -font {Courier 12} -width 20 -height 10 }] == 0}] pack append . .t {top expand fill} update .t debug on wm geometry . {} set bigFont {Helvetica 24} # The statements below reset the main window; it's needed if the window # manager is mwm, to make mwm forget about a previous minimum size setting. wm withdraw . wm minsize . 1 1 wm positionfrom . user wm deiconify . entry .t.e .t.e insert 0 "Text" .t insert 1.0 "Line 1 abcdefghijklm 12345 Line 4 bOy GIrl .#@? x_yz !@#$% Line 7" set i 1 foreach test { {-background #012345 #012345 non-existent {unknown color name "non-existent"}} {-bgstipple gray50 gray50 badStipple {bitmap "badStipple" not defined}} {-borderwidth 2 2 46q {bad screen distance "46q"}} {-fgstipple gray25 gray25 bogus {bitmap "bogus" not defined}} {-font fixed fixed {} {font "" doesn't exist}} {-foreground #001122 #001122 {silly color} {unknown color name "silly color"}} {-justify left left middle {bad justification "middle": must be left, right, or center}} {-lmargin1 10 10 bad {bad screen distance "bad"}} {-lmargin2 10 10 bad {bad screen distance "bad"}} {-offset 2 2 100xyz {bad screen distance "100xyz"}} {-overstrike on on stupid {expected boolean value but got "stupid"}} {-relief raised raised stupid {bad relief type "stupid": must be flat, groove, raised, ridge, solid, or sunken}} {-rmargin 10 10 bad {bad screen distance "bad"}} {-spacing1 10 10 bad {bad screen distance "bad"}} {-spacing2 10 10 bad {bad screen distance "bad"}} {-spacing3 10 10 bad {bad screen distance "bad"}} {-tabs {10 20 30} {10 20 30} {10 fork} {bad tab alignment "fork": must be left, right, center, or numeric}} {-underline no no stupid {expected boolean value but got "stupid"}} } { set name [lindex $test 0] test textTag-1.$i {tag configuration options} courier12 { .t tag configure x $name [lindex $test 1] .t tag cget x $name } [lindex $test 2] incr i if {[lindex $test 3] != ""} { test textTag-1.$i {configuration options} courier12 { list [catch {.t tag configure x $name [lindex $test 3]} msg] $msg } [list 1 [lindex $test 4]] } .t tag configure x $name [lindex [.t tag configure x $name] 3] incr i } test textTag-2.1 {TkTextTagCmd - "add" option} courier12 { list [catch {.t tag} msg] $msg } {1 {wrong # args: should be ".t tag option ?arg arg ...?"}} test textTag-2.2 {TkTextTagCmd - "add" option} courier12 { list [catch {.t tag gorp} msg] $msg } {1 {bad tag option "gorp": must be add, bind, cget, configure, delete, lower, names, nextrange, raise, ranges, or remove}} test textTag-2.3 {TkTextTagCmd - "add" option} courier12 { list [catch {.t tag add foo} msg] $msg } {1 {wrong # args: should be ".t tag add tagName index1 ?index2 index1 index2 ...?"}} test textTag-2.4 {TkTextTagCmd - "add" option} courier12 { list [catch {.t tag add x gorp} msg] $msg } {1 {bad text index "gorp"}} test textTag-2.5 {TkTextTagCmd - "add" option} courier12 { list [catch {.t tag add x 1.2 gorp} msg] $msg } {1 {bad text index "gorp"}} test textTag-2.6 {TkTextTagCmd - "add" option} courier12 { .t tag add sel 3.2 3.4 .t tag add sel 3.2 3.0 .t tag ranges sel } {3.2 3.4} test textTag-2.7 {TkTextTagCmd - "add" option} courier12 { .t tag add x 1.0 1.end .t tag ranges x } {1.0 1.6} test textTag-2.8 {TkTextTagCmd - "add" option} courier12 { .t tag remove x 1.0 end .t tag add x 1.2 .t tag ranges x } {1.2 1.3} test textTag-2.9 {TkTextTagCmd - "add" option} courier12 { .t.e select from 0 .t.e select to 4 .t tag add sel 3.2 3.4 selection get } 34 test textTag-2.11 {TkTextTagCmd - "add" option} courier12 { .t.e select from 0 .t.e select to 4 .t configure -exportselection 0 .t tag add sel 3.2 3.4 selection get } Text test textTag-2.12 {TkTextTagCmd - "add" option} courier12 { .t tag remove sel 1.0 end .t tag add sel 1.1 1.5 2.4 3.1 4.2 4.4 .t tag ranges sel } {1.1 1.5 2.4 3.1 4.2 4.4} test textTag-2.13 {TkTextTagCmd - "add" option} courier12 { .t tag remove sel 1.0 end .t tag add sel 1.1 1.5 2.4 .t tag ranges sel } {1.1 1.5 2.4 2.5} catch {.t tag delete x} test textTag-3.1 {TkTextTagCmd - "bind" option} courier12 { list [catch {.t tag bind} msg] $msg } {1 {wrong # args: should be ".t tag bind tagName ?sequence? ?command?"}} test textTag-3.2 {TkTextTagCmd - "bind" option} courier12 { list [catch {.t tag bind 1 2 3 4} msg] $msg } {1 {wrong # args: should be ".t tag bind tagName ?sequence? ?command?"}} test textTag-3.3 {TkTextTagCmd - "bind" option} courier12 { .t tag bind x script1 .t tag bind x } script1 test textTag-3.4 {TkTextTagCmd - "bind" option} courier12 { list [catch {.t tag bind x script2} msg] $msg } {1 {bad event type or keysym "Gorp"}} test textTag-3.5 {TkTextTagCmd - "bind" option} courier12 { .t tag delete x .t tag bind x script1 list [catch {.t tag bind x script2} msg] $msg [.t tag bind x] } {1 {requested illegal events; only key, button, motion, enter, leave, and virtual events may be used} } test textTag-3.6 {TkTextTagCmd - "bind" option} courier12 { .t tag delete x .t tag bind x script1 .t tag bind x script2 .t tag bind x a xyzzy list [lsort [.t tag bind x]] [.t tag bind x ] [.t tag bind x a] } {{ a} script1 xyzzy} test textTag-3.7 {TkTextTagCmd - "bind" option} courier12 { .t tag delete x .t tag bind x script1 .t tag bind x +script2 .t tag bind x } {script1 script2} test textTag-3.7 {TkTextTagCmd - "bind" option} courier12 { .t tag delete x list [catch {.t tag bind x } msg] $msg } {0 {}} test textTag-3.8 {TkTextTagCmd - "bind" option} courier12 { .t tag delete x list [catch {.t tag bind x <} msg] $msg } {1 {no event type or button # or keysym}} test textTag-4.1 {TkTextTagCmd - "cget" option} courier12 { list [catch {.t tag cget a} msg] $msg } {1 {wrong # args: should be ".t tag cget tagName option"}} test textTag-4.2 {TkTextTagCmd - "cget" option} courier12 { list [catch {.t tag cget a b c} msg] $msg } {1 {wrong # args: should be ".t tag cget tagName option"}} test textTag-4.3 {TkTextTagCmd - "cget" option} courier12 { .t tag delete foo list [catch {.t tag cget foo bar} msg] $msg } {1 {tag "foo" isn't defined in text widget}} test textTag-4.4 {TkTextTagCmd - "cget" option} courier12 { list [catch {.t tag cget sel bogus} msg] $msg } {1 {unknown option "bogus"}} test textTag-4.5 {TkTextTagCmd - "cget" option} courier12 { .t tag delete x .t tag configure x -background red list [catch {.t tag cget x -background} msg] $msg } {0 red} test textTag-5.1 {TkTextTagCmd - "configure" option} courier12 { list [catch {.t tag configure} msg] $msg } {1 {wrong # args: should be ".t tag configure tagName ?option? ?value? ?option value ...?"}} test textTag-5.2 {TkTextTagCmd - "configure" option} courier12 { list [catch {.t tag configure x -foo} msg] $msg } {1 {unknown option "-foo"}} test textTag-5.3 {TkTextTagCmd - "configure" option} courier12 { list [catch {.t tag configure x -background red -underline} msg] $msg } {1 {value for "-underline" missing}} test textTag-5.4 {TkTextTagCmd - "configure" option} courier12 { .t tag delete x .t tag configure x -underline yes .t tag configure x -underline } {-underline {} {} {} yes} test textTag-5.5 {TkTextTagCmd - "configure" option} courier12 { .t tag delete x .t tag configure x -overstrike on .t tag cget x -overstrike } {on} test textTag-5.6 {TkTextTagCmd - "configure" option} courier12 { list [catch {.t tag configure x -overstrike foo} msg] $msg } {1 {expected boolean value but got "foo"}} test textTag-5.7 {TkTextTagCmd - "configure" option} courier12 { .t tag delete x list [catch {.t tag configure x -underline stupid} msg] $msg } {1 {expected boolean value but got "stupid"}} test textTag-5.8 {TkTextTagCmd - "configure" option} courier12 { .t tag delete x .t tag configure x -justify left .t tag configure x -justify } {-justify {} {} {} left} test textTag-5.9 {TkTextTagCmd - "configure" option} courier12 { .t tag delete x list [catch {.t tag configure x -justify bogus} msg] $msg } {1 {bad justification "bogus": must be left, right, or center}} test textTag-5.10 {TkTextTagCmd - "configure" option} courier12 { .t tag delete x list [catch {.t tag configure x -justify fill} msg] $msg } {1 {bad justification "fill": must be left, right, or center}} test textTag-5.11 {TkTextTagCmd - "configure" option} courier12 { .t tag delete x .t tag configure x -offset 2 .t tag configure x -offset } {-offset {} {} {} 2} test textTag-5.12 {TkTextTagCmd - "configure" option} courier12 { .t tag delete x list [catch {.t tag configure x -offset 1.0q} msg] $msg } {1 {bad screen distance "1.0q"}} test textTag-5.13 {TkTextTagCmd - "configure" option} courier12 { .t tag delete x .t tag configure x -lmargin1 2 -lmargin2 4 -rmargin 5 list [.t tag configure x -lmargin1] [.t tag configure x -lmargin2] \ [.t tag configure x -rmargin] } {{-lmargin1 {} {} {} 2} {-lmargin2 {} {} {} 4} {-rmargin {} {} {} 5}} test textTag-5.14 {TkTextTagCmd - "configure" option} courier12 { .t tag delete x list [catch {.t tag configure x -lmargin1 2.0x} msg] $msg } {1 {bad screen distance "2.0x"}} test textTag-5.15 {TkTextTagCmd - "configure" option} courier12 { .t tag delete x list [catch {.t tag configure x -lmargin2 gorp} msg] $msg } {1 {bad screen distance "gorp"}} test textTag-5.16 {TkTextTagCmd - "configure" option} courier12 { .t tag delete x list [catch {.t tag configure x -rmargin 140.1.1} msg] $msg } {1 {bad screen distance "140.1.1"}} .t tag delete x test textTag-5.17 {TkTextTagCmd - "configure" option} courier12 { .t tag delete x .t tag configure x -spacing1 2 -spacing2 4 -spacing3 6 list [.t tag configure x -spacing1] [.t tag configure x -spacing2] \ [.t tag configure x -spacing3] } {{-spacing1 {} {} {} 2} {-spacing2 {} {} {} 4} {-spacing3 {} {} {} 6}} test textTag-5.18 {TkTextTagCmd - "configure" option} courier12 { .t tag delete x list [catch {.t tag configure x -spacing1 2.0x} msg] $msg } {1 {bad screen distance "2.0x"}} test textTag-5.19 {TkTextTagCmd - "configure" option} courier12 { .t tag delete x list [catch {.t tag configure x -spacing1 lousy} msg] $msg } {1 {bad screen distance "lousy"}} test textTag-5.20 {TkTextTagCmd - "configure" option} courier12 { .t tag delete x list [catch {.t tag configure x -spacing1 4.2.3} msg] $msg } {1 {bad screen distance "4.2.3"}} test textTag-5.21 {TkTextTagCmd - "configure" option} courier12 { .t configure -selectborderwidth 2 -selectforeground blue \ -selectbackground black .t tag configure sel -borderwidth 4 -foreground green -background yellow set x {} foreach i {-selectborderwidth -selectforeground -selectbackground} { lappend x [lindex [.t configure $i] 4] } set x } {4 green yellow} test textTag-5.22 {TkTextTagCmd - "configure" option} courier12 { .t configure -selectborderwidth 20 .t tag configure sel -borderwidth {} .t cget -selectborderwidth } {} test textTag-6.1 {TkTextTagCmd - "delete" option} courier12 { list [catch {.t tag delete} msg] $msg } {1 {wrong # args: should be ".t tag delete tagName tagName ..."}} test textTag-6.2 {TkTextTagCmd - "delete" option} courier12 { list [catch {.t tag delete zork} msg] $msg } {0 {}} test textTag-6.3 {TkTextTagCmd - "delete" option} courier12 { .t tag delete x .t tag config x -background black .t tag config y -foreground white .t tag config z -background black .t tag delete y z lsort [.t tag names] } {sel x} test textTag-6.4 {TkTextTagCmd - "delete" option} courier12 { .t tag config x -background black .t tag config y -foreground white .t tag config z -background black eval .t tag delete [.t tag names] .t tag names } {sel} test textTag-6.5 {TkTextTagCmd - "delete" option} courier12 { .t tag bind x foo .t tag delete x .t tag configure x -background black .t tag bind x } {} proc tagsetup {} { .t tag delete x y z a b c d .t tag remove sel 1.0 end foreach i {a b c d} { .t tag configure $i -background black } } test textTag-7.1 {TkTextTagCmd - "lower" option} courier12 { list [catch {.t tag lower} msg] $msg } {1 {wrong # args: should be ".t tag lower tagName ?belowThis?"}} test textTag-7.2 {TkTextTagCmd - "lower" option} courier12 { list [catch {.t tag lower foo} msg] $msg } {1 {tag "foo" isn't defined in text widget}} test textTag-7.3 {TkTextTagCmd - "lower" option} courier12 { list [catch {.t tag lower sel bar} msg] $msg } {1 {tag "bar" isn't defined in text widget}} test textTag-7.4 {TkTextTagCmd - "lower" option} courier12 { tagsetup .t tag lower c .t tag names } {c sel a b d} test textTag-7.5 {TkTextTagCmd - "lower" option} courier12 { tagsetup .t tag lower d b .t tag names } {sel a d b c} test textTag-7.6 {TkTextTagCmd - "lower" option} courier12 { tagsetup .t tag lower a c .t tag names } {sel b a c d} test textTag-8.1 {TkTextTagCmd - "names" option} courier12 { list [catch {.t tag names a b} msg] $msg } {1 {wrong # args: should be ".t tag names ?index?"}} test textTag-8.2 {TkTextTagCmd - "names" option} courier12 { tagsetup .t tag names } {sel a b c d} test textTag-8.3 {TkTextTagCmd - "names" option} courier12 { tagsetup .t tag add "a b" 2.1 2.6 .t tag add c 2.4 2.7 .t tag names 2.5 } {c {a b}} .t tag delete x y z a b c d {a b} .t tag add x 2.3 2.5 .t tag add x 2.9 3.1 .t tag add x 7.2 test textTag-9.1 {TkTextTagCmd - "nextrange" option} courier12 { list [catch {.t tag nextrange x} msg] $msg } {1 {wrong # args: should be ".t tag nextrange tagName index1 ?index2?"}} test textTag-9.2 {TkTextTagCmd - "nextrange" option} courier12 { list [catch {.t tag nextrange x 1 2 3} msg] $msg } {1 {wrong # args: should be ".t tag nextrange tagName index1 ?index2?"}} test textTag-9.3 {TkTextTagCmd - "nextrange" option} courier12 { list [catch {.t tag nextrange foo 1.0} msg] $msg } {0 {}} test textTag-9.4 {TkTextTagCmd - "nextrange" option} courier12 { list [catch {.t tag nextrange x foo} msg] $msg } {1 {bad text index "foo"}} test textTag-9.5 {TkTextTagCmd - "nextrange" option} courier12 { list [catch {.t tag nextrange x 1.0 bar} msg] $msg } {1 {bad text index "bar"}} test textTag-9.6 {TkTextTagCmd - "nextrange" option} courier12 { .t tag nextrange x 1.0 } {2.3 2.5} test textTag-9.7 {TkTextTagCmd - "nextrange" option} courier12 { .t tag nextrange x 2.2 } {2.3 2.5} test textTag-9.8 {TkTextTagCmd - "nextrange" option} courier12 { .t tag nextrange x 2.3 } {2.3 2.5} test textTag-9.9 {TkTextTagCmd - "nextrange" option} courier12 { .t tag nextrange x 2.4 } {2.9 3.1} test textTag-9.10 {TkTextTagCmd - "nextrange" option} courier12 { .t tag nextrange x 2.4 2.9 } {} test textTag-9.11 {TkTextTagCmd - "nextrange" option} courier12 { .t tag nextrange x 2.4 2.10 } {2.9 3.1} test textTag-9.12 {TkTextTagCmd - "nextrange" option} courier12 { .t tag nextrange x 2.4 2.11 } {2.9 3.1} test textTag-9.13 {TkTextTagCmd - "nextrange" option} courier12 { .t tag nextrange x 7.0 } {7.2 7.3} test textTag-9.14 {TkTextTagCmd - "nextrange" option} courier12 { .t tag nextrange x 7.3 } {} test textTag-10.1 {TkTextTagCmd - "prevrange" option} courier12 { list [catch {.t tag prevrange x} msg] $msg } {1 {wrong # args: should be ".t tag prevrange tagName index1 ?index2?"}} test textTag-10.2 {TkTextTagCmd - "prevrange" option} courier12 { list [catch {.t tag prevrange x 1 2 3} msg] $msg } {1 {wrong # args: should be ".t tag prevrange tagName index1 ?index2?"}} test textTag-10.3 {TkTextTagCmd - "prevrange" option} courier12 { list [catch {.t tag prevrange foo end} msg] $msg } {0 {}} test textTag-10.4 {TkTextTagCmd - "prevrange" option} courier12 { list [catch {.t tag prevrange x foo} msg] $msg } {1 {bad text index "foo"}} test textTag-10.5 {TkTextTagCmd - "prevrange" option} courier12 { list [catch {.t tag prevrange x end bar} msg] $msg } {1 {bad text index "bar"}} test textTag-10.6 {TkTextTagCmd - "prevrange" option} courier12 { .t tag prevrange x end } {7.2 7.3} test textTag-10.7 {TkTextTagCmd - "prevrange" option} courier12 { .t tag prevrange x 2.4 } {2.3 2.5} test textTag-10.8 {TkTextTagCmd - "prevrange" option} courier12 { .t tag prevrange x 2.5 } {2.3 2.5} test textTag-10.9 {TkTextTagCmd - "prevrange" option} courier12 { .t tag prevrange x 2.9 } {2.3 2.5} test textTag-10.10 {TkTextTagCmd - "prevrange" option} courier12 { .t tag prevrange x 2.9 2.6 } {} test textTag-10.11 {TkTextTagCmd - "prevrange" option} courier12 { .t tag prevrange x 2.9 2.5 } {} test textTag-10.12 {TkTextTagCmd - "prevrange" option} courier12 { .t tag prevrange x 2.9 2.3 } {2.3 2.5} test textTag-10.13 {TkTextTagCmd - "prevrange" option} courier12 { .t tag prevrange x 7.0 } {2.9 3.1} test textTag-10.14 {TkTextTagCmd - "prevrange" option} courier12 { .t tag prevrange x 2.3 } {} test textTag-11.1 {TkTextTagCmd - "raise" option} courier12 { list [catch {.t tag raise} msg] $msg } {1 {wrong # args: should be ".t tag raise tagName ?aboveThis?"}} test textTag-11.2 {TkTextTagCmd - "raise" option} courier12 { list [catch {.t tag raise foo} msg] $msg } {1 {tag "foo" isn't defined in text widget}} test textTag-11.3 {TkTextTagCmd - "raise" option} courier12 { list [catch {.t tag raise sel bar} msg] $msg } {1 {tag "bar" isn't defined in text widget}} test textTag-11.4 {TkTextTagCmd - "raise" option} courier12 { tagsetup .t tag raise c .t tag names } {sel a b d c} test textTag-11.5 {TkTextTagCmd - "raise" option} courier12 { tagsetup .t tag raise d b .t tag names } {sel a b d c} test textTag-11.6 {TkTextTagCmd - "raise" option} courier12 { tagsetup .t tag raise a c .t tag names } {sel b c a d} test textTag-12.1 {TkTextTagCmd - "ranges" option} courier12 { list [catch {.t tag ranges} msg] $msg } {1 {wrong # args: should be ".t tag ranges tagName"}} test textTag-12.2 {TkTextTagCmd - "ranges" option} courier12 { .t tag delete x .t tag ranges x } {} test textTag-12.3 {TkTextTagCmd - "ranges" option} courier12 { .t tag delete x .t tag add x 2.2 .t tag add x 2.7 4.15 .t tag add x 5.2 5.5 .t tag ranges x } {2.2 2.3 2.7 4.6 5.2 5.5} test textTag-12.4 {TkTextTagCmd - "ranges" option} courier12 { .t tag delete x .t tag add x 1.0 3.0 .t tag add x 4.0 end .t tag ranges x } {1.0 3.0 4.0 8.0} test textTag-13.1 {TkTextTagCmd - "remove" option} courier12 { list [catch {.t tag remove} msg] $msg } {1 {wrong # args: should be ".t tag remove tagName index1 ?index2 index1 index2 ...?"}} test textTag-13.2 {TkTextTagCmd - "remove" option} courier12 { .t tag delete x .t tag add x 2.2 2.11 .t tag remove x 2.3 2.7 .t tag ranges x } {2.2 2.3 2.7 2.11} test textTag-13.3 {TkTextTagCmd - "remove" option} courier12 { .t configure -exportselection 1 .t tag remove sel 1.0 end .t tag add sel 2.4 3.3 .t.e select to 4 .t tag remove sel 2.7 3.1 selection get } Text .t tag delete x a b c d test textTag-14.1 {SortTags} courier12 { foreach i {a b c d} { .t tag add $i 2.0 2.2 } .t tag names 2.1 } {a b c d} .t tag delete a b c d test textTag-14.2 {SortTags} courier12 { foreach i {a b c d} { .t tag configure $i -background black } foreach i {d c b a} { .t tag add $i 2.0 2.2 } .t tag names 2.1 } {a b c d} .t tag delete x a b c d test textTag-14.3 {SortTags} courier12 { for {set i 0} {$i < 30} {incr i} { .t tag add x$i 2.0 2.2 } .t tag names 2.1 } {x0 x1 x2 x3 x4 x5 x6 x7 x8 x9 x10 x11 x12 x13 x14 x15 x16 x17 x18 x19 x20 x21 x22 x23 x24 x25 x26 x27 x28 x29} test textTag-14.4 {SortTags} courier12 { for {set i 0} {$i < 30} {incr i} { .t tag configure x$i -background black } for {set i 29} {$i >= 0} {incr i -1} { .t tag add x$i 2.0 2.2 } .t tag names 2.1 } {x0 x1 x2 x3 x4 x5 x6 x7 x8 x9 x10 x11 x12 x13 x14 x15 x16 x17 x18 x19 x20 x21 x22 x23 x24 x25 x26 x27 x28 x29} foreach tag [.t tag names] { catch {.t tag delete $tag} } set c [.t bbox 2.1] set x1 [expr [lindex $c 0] + [lindex $c 2]/2] set y1 [expr [lindex $c 1] + [lindex $c 3]/2] set c [.t bbox 3.2] set x2 [expr [lindex $c 0] + [lindex $c 2]/2] set y2 [expr [lindex $c 1] + [lindex $c 3]/2] set c [.t bbox 4.3] set x3 [expr [lindex $c 0] + [lindex $c 2]/2] set y3 [expr [lindex $c 1] + [lindex $c 3]/2] test textTag-15.1 {TkTextBindProc} courier12 { bind .t {lappend x up} .t tag bind x {lappend x x-up} .t tag bind y {lappend x y-up} set x {} .t tag add x 2.0 2.4 .t tag add y 4.3 event gen .t