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------=_NextPart_01C6EBCC.9D143200 Content-Location: file:///C:/0D7C54D6/cse303-06au-lecture6_files/pres.xml Content-Transfer-Encoding: quoted-printable Content-Type: text/xml; charset="utf-8" ------=_NextPart_01C6EBCC.9D143200 Content-Location: file:///C:/0D7C54D6/cse303-06au-lecture6_files/slide0001.htm Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset="us-ascii" CSE 303 - Autum 2006 - Lecture 6
CSE 303
Concepts and Tools for
Software Developme= nt
Richard C. Davis
UW CSE – 10/9/2006
Lecture 6 – String Processing
------=_NextPart_01C6EBCC.9D143200 Content-Location: file:///C:/0D7C54D6/cse303-06au-lecture6_files/slide0001_image001.gif Content-Transfer-Encoding: base64 Content-Type: image/gif R0lGODlhyAF2AHcAMSH+GlNvZnR3YXJlOiBNaWNyb3NvZnQgT2ZmaWNlACH5BAEAAAAALAAAAADG AXUAgAAAAJkAAAL/jI+py+0Po5y02ouz3rz7D4biSJbmiabqyrbuC8fyTNf2jef6zvf+DwwKh8Si 8YhMKpfMpvMJjUqn1Kr1is1qt9yu9wsOi8fksvmMTqvX7Lb7DY/L5/S6/Y7P6/f8vv8PGCg4SFho eIiYqLjI2Oj4CBkpOUlZaXmJmam5ydnp+QkaKjpKWmp6ipqqusra6voKGys7S1tre4ubq7vL2+v7 CxwsPExcbHyMnKy8zNzs/AwdLT1NXW19jZ2tvc3d7f0NHi4+Tl5ufo6err7O3u7+Dh8vP09fb3+P n6+/z9/v/w8woMCBBAsaPIgwocKFDBs6fAgxosSJFCtavIgxo8aNNhw7evwIMqTIkSRLmjyJMqXK lSxbunwJM6bMmTRr2ryJM6fOnTx7+vwJNKjQoUSLGj2KNOmkAgA7 ------=_NextPart_01C6EBCC.9D143200 Content-Location: file:///C:/0D7C54D6/cse303-06au-lecture6_files/slide0004.htm Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset="us-ascii" CSE 303 - Autum 2006 - Lecture 6
10/9/2006
CSE 303 Lecture 6
2
Administravia
&#= 8226;Assignment 2 is due in one week
&#= 8226;Office hours
&= #8211;Mine are after class today
&= #8211;I’ll have extra office hours later this week
&= #8211;T/A office hours will be posted by next lecture
&#= 8226;Follow Turn-in instructions!
&= #8211;username-hw2
&= #8211;Plain text in readme.txt
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10/9/2006
CSE 303 Lecture 6
3
Tip of the Day
&#= 8226;Replacing Strings in Emacs
&= #8211;M-x query-replace
&= #8226;Enter name of string to search for
&= #8226;Enter name of string to replace
&= #8226;Enter “y” or “n” for each match found
&= #8211;M-x replace-string
&= #8226;Same, but does not prompt for each string
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10/9/2006
CSE 303 Lecture 6
4
Last Time
&#= 8226;Powerful Unix Tools
–<= span style=3D'font-family:"Courier New";color:#339933'>grep <= /span>
–<= span style=3D'font-family:"Courier New";color:#339933'>find <= /span>
–<= span style=3D'font-family:"Courier New";color:#339933'>diff <= /span>
–<= span style=3D'font-family:"Courier New";color:#339933'>wc<= /div>
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10/9/2006
CSE 303 Lecture 6
5
Today
&#= 8226;String Processing
–<= span style=3D'font-family:"Courier New";color:#339933'>sed :single lines
&= #8211;More Complex
•<= span style=3D'font-family:"Courier New";color:#339933'>awk: more complex processing
•<= span style=3D'font-family:"Courier New";color:#339933'>perl, python, ruby :general programming
&#= 8226;Shell Wrap-Up
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10/9/2006
CSE 303 Lecture 6
6
Automating File Editing
&#= 8226;We’ve learned to automate simple tasks
&= #8211;Move around files
&= #8211;Start/Stop processes
&= #8211;Change user environment/permissions
&#= 8226;But what about…
&= #8211;Changing strings
&= #8211;Repetitive edits to multiple files
•sed :can h= elp (used in HW2)
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10/9/2006
CSE 303 Lecture 6
7
Sed : A Stream EDitor
•sed <= /span>
&= #8211;Non-interactive editor
&= #8211;Performs editing actions
&= #8211;Actions defined in a “script”
&= #8211;Stream-oriented
&= #8226;Input from file or stdin
&= #8226;Script processes each line
&= #8226;Output goes to stdout
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CSE 303 Lecture 6
8
How Sed Works
&#= 8226;Each line copied to “pattern space”
&#= 8226;All editing commands applied
&= #8211;To data in pattern space
&= #8211;Done in sequence
&#= 8226;Original input does not change
&#= 8226;Possible to restrict edits to subset of lines
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10/9/2006
CSE 303 Lecture 6
9
Command-Line Syntax
&#= 8226;Method 1: One-line syntax
–<= span style=3D'font-family:"Courier New";color:#339933'>sed [options] 'comman= d' file(s)
–<= span style=3D'font-family:"Courier New";color:#339933'>sed -e 'cmd1' –e 'cmd2' file(s)
&#= 8226;Method 2: Script file holds commands
–<= span style=3D'font-family:"Courier New";color:#339933'>sed [options] –f script file(s)
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CSE 303 Lecture 6
10
Search and Replace with Sed
•M= ost Common use
&= #8211;sed ‘s/pattern/replacement/g file
–M= eans “replace every (longest) substring that matches pa= ttern with repl= acement”
•C= ommon variations
–O= mit g at end: replace only first match
–P= ut num at end: replace every numth match
&= #8211;sed -n<= /b> : suppress normal output
–P= ut p at end: print matching lines
&= #8211;sed -r<= /b> : Use “extended” regular expressions<= /span>
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Using the Pattern Space
&#= 8226;Can replace with all or part of a match
&#= 8226;Special characters in replacement
–<= span style=3D'font-family:"Courier New";color:#339933'>& : En= tire pattern space
–<= span style=3D'font-family:"Courier New";color:#339933'>\1 : Strin= g that match 1st set of parentheses
–\2 : Strin= g that match 2nd set of parentheses
&= #8211;…
= 226;
–
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Examples
•<= /span>Not so useful
–sed 's/= a/b/g' ex1.txt
–sed 's/a/b/'  ex1.txt
–sed 's/= a/b/2' ex1.txt
–sed -n 's/a/b/2p' ex1.txt
•<= /span>More useful
–sed 's/.*Linux \(.*\) .*/\1:= /' ex2.txt
–sed 's/.*Linux.*/&:/' ex2.txt
•<= /span>Newline Note
–<= /span>The •= 3;
–
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Sed Command Details
•G= eneral syntax of sed commands= 3;
&= #8211;[address[,address]][!]command[args]
•Address specifies range to look at
–Address types
•Line with a particular number e.g.: 3
•Lines matching pattern e.g.: /SAVE/
–Using two addresses specifies a range of lines
–Using ! Means “use lines <= i>not specified in address”
•Other Commands
&= #8211;d : delete lines
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More Sed Examples
&#= 8226;Delete lines 3-5: sed '3,5= d' ex3.c
&#= 8226;Delete lines that don’t contain SAVE
–<= span lang=3DPT-BR style=3D'font-family:"Courier New";color:#339933'>sed = '/SAVE/! d' ex3.c = ;
&#= 8226;Delete lines that start with //
–<= span lang=3DPT-BR style=3D'font-family:"Courier New";color:#339933'>sed = '/\/\// d' ex3.c =
&#= 8226;Delete lines between /= * and */ =
–<= span lang=3DPT-BR style=3D'font-family:"Courier New";color:#339933'>sed = '/\/\*/, /\*\// d' ex= 3.c
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Advanced Sed Features
&#= 8226;Commands so far: substitute, print, delete
&#= 8226;Other commands (not used in class)
&#= 8211;Append, replace with block, insert, translate
&= #8211;Branch to label
&= #8211;Multi-line patterns
&= #8211;The hold space for fancy editing
&= #8226;E.g., copy and paste of lines
&#= 8226;Need these? Use more powerful language
•
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Awk
•P= rocesses text files
–F= ile contains records
•S= eparated by newline (default)
–R= ecords contain fields
•S= eparated by spaces (default)
•W= hy use awk?
–G= enerate reports from logs
–P= rocess results of an experiment
•
R= 26;(Named after authors= , Aho, Weinberger, and Kernighan)
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Running Awk
&#= 8226;One-line syntax
–<= span lang=3DPT-BR style=3D'font-family:"Courier New";color:#339933'>awk [opt= ions] 'script' file(s)
&#= 8226;Script file
–<= span lang=3DPT-BR style=3D'font-family:"Courier New";color:#339933'>awk [opt= ions] –f scriptFile file(s)
– <= /div>
–
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Awk Functionality
&#= 8226;Script structure
–<= span lang=3DPT-BR style=3D'font-family:"Courier New";color:#339933'>pattern { procedure }
&#= 8226;Records processed one at a time
&= #8211;Pattern restricts to matching records
&#= 8226;Fields accessed with $= 1, …$n
&#= 8226;BEGIN and END patterns
&= #8211;For procedures before/after processing file
– <= /div>
–
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Advanced Awk Features
•awk is a v= ery powerful language
&= #8211;Looping constructs
&= #8211;Arrays
&= #8211;Functions
&= #8211;Fancy printing
&= #8211;Powerful math functions
= 226;Need these? Use Perl, Python, or Ruby
–
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More Pow= erful Script Languages
&#= 8226;Perl, Python, and Ruby
&#= 8226;Interpreted
&#= 8226;Write scripts like bash
&= #8211;Prefix script with #!&= lt;program path>
&= #8211;Make executable with chmod
&#= 8226;Pre-compiled (fast!)
– <= /div>
• <= /div>
–
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Perl
&#= 8226;Practical Extraction and Report Language
&= #8211;Or “Pathologically Eclectic Rubbish Lister”
&#= 8226;Language properties
&= #8211;Excellent pattern matching
&= #8211;“Kitchen Sink” syntax
&= #8211;No objects in original version
• <= /div>
–
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Python
&#= 8226;Fully Object Oriented
&#= 8226;Simpler Syntax
&#= 8226;Allows different styles
&= #8211;Procedural
&= #8211;Functional
–
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Ruby
&#= 8226;Fully Object Oriented
&#= 8226;Syntax more similar to Smalltalk
&#= 8226;Many different ways to do the same things
&= #8211;Harder to debug
= 226;
–
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Summary
&#= 8226;String Processing
–<= span style=3D'font-family:"Courier New";color:#339933'>sed : quic= k mods to single lines
–<= span style=3D'font-family:"Courier New";color:#339933'>awk : more complex record processing
–<= span style=3D'font-family:"Courier New";color:#339933'>perl, python, ruby: learn one
&#= 8226;That’s all for the shell!
• <= /div>
R= 26;Note: We don’t require you to know how to use any scripting tools other = than sed in this cla= ss, but we do require you to know when you should consider lear= ning to use one of these tools.
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10/9/2006
CSE 303 Lecture 6
25
Next Time
•Introduction to C!
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‹date/time›
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return href.substring(0, End)=20 } return ''; } function GetTags(base,tag) { if(g_supportsPPTHTML) return base.all.tags(tag); else return base.getElementsByTagName(tag); } function UpdNtsPane(){ if(frames["PPTNts"]) PPTNts.location.replace( MHTMLP= refix+GetHrefObj( gCurSld ).mNtsHref ) } function UpdNavPane( sldIndex ){ if(gNavLoaded) PPTNav.UpdNav() } function UpdOtNavPane(){ if(gOtlNavLoaded) PPTOtlNav.UpdOtlNav() } function UpdOtlPane(){ if(gOtlLoaded) PPTOtl.UpdOtl() } function SetHasNts( fVal ) { if( gHasNts !=3D fVal ) { gHasNts=3DfVal UpdNavPane() } } function ToggleOtlText() { gOtlTxtExp=3D!gOtlTxtExp UpdOtlPane() } function ClearMedia() { // Clear any sounds playing before launching another browser window. Other= wise, // in fullscreen mode, you'll continue to hear the sound in the frames mod= e. if (PPTSld.pptSound) PPTSld.pptSound.loop =3D 0; } function FullScreen() {=20 if ( PPTSld.g_animUseRuntime ) PPTSld.document.body.pause(); ClearMedia(); var href =3D ( document.location.protocol =3D=3D 'mhtml:') ? FULLSCR_HREF = : FULLSCR_HREF+"#"+GetHrefObj(gCurSld).mSldHref; if (MHTMLPrefix !=3D "") href =3D RemoveFilePrefixFromHref(href) if(PPTNav.event.ctrlKey) { var w =3D (window.screen.availWidth * 1.0) / 2.0 var h =3D w * (PPTSld.g_origH * 1.0) / PPTSld.g_origW win =3D window.open( MHTMLPrefix+href,null,"toolbar=3D0,resizable=3D1,top= =3D0,left=3D0," + "width=3D"+ w + ",height=3D" + h ); if( win.document.body && PPTSld.g_animUseRuntime ) win.document.body.PPTSldFrameset=3Dwindow; } else { win =3D window.open( MHTMLPrefix+href,null,"fullscreen=3Dyes" ); if( win.document.body && PPTSld.g_animUseRuntime ) win.document.body.PPTSldFrameset=3Dwindow; } } function ToggleVNarration() { rObj=3DPPTSld.document.all("NSPlay") if( rObj && !PPTSld.g_animUseRuntime ) { if( (rObj.playState =3D=3D 1)||(rObj.playState =3D=3D 0) ) rObj.Play() else if( rObj.playState =3D=3D 2 ) rObj.Pause() else return; } else if( PPTSld.g_animUseRuntime ) { narObj =3D PPTSld.document.all("narrationID") if( narObj ) narObj.togglePause() } } function GetCurSldNum() { =20 obj=3DGetHrefObj(gCurSld) if( obj.mOrigVis =3D=3D 1 ) return obj.mSldIdx else =20 return gCurSld } function GetNumSlds() { =20 if( GetHrefObj(gCurSld).mOrigVis =3D=3D 1 ) return GetSldList().mNumVisSlds; else return GetSldList().mList.length } function GetSldNum( href ) { for(ii=3D0; ii 1 ) PopSldList(); else if( !IsFramesMode() ) { if( gLoopCont ) GoToFirst() else EndShow() } } function GoToPrevSld() { ii=3DgCurSld-1 if( ii > 0 ) { obj=3DGetHrefObj(ii) while ( obj && ( obj.mVis =3D=3D 0 ) && ( ii>0 ) ) obj=3DGetHrefObj(--ii) if( ii =3D=3D 0 ) ii=3D1 GoToSldNum(ii) } } function GoToFirst(){ GoToSld( GetHrefObj(1).mSldHref ) } function GoToLast() { ii=3DGetSldList().mList.length if( ii !=3D gCurSld ) GoToSld( GetHrefObj(ii).mSldHref ) } function GoToSldNum( num ) { if( PPTSld.event ) PPTSld.event.cancelBubble=3Dtrue obj =3D GetHrefObj( num ) obj.mVis=3D1 gPrevSld=3DgCurSld gCurSld =3D num; =09 if (MHTMLPrefix !=3D "") PPTSld.location.replace(MHTMLPrefix+RemoveFilePrefixFromHref(obj.mSldHref= )) else PPTSld.location.replace(obj.mSldHref) =09 if( IsFramesMode() ) { UpdNavPane(); UpdOtlPane(); UpdNtsPane() } } function GoToSld( href ) { if( PPTSld.event ) PPTSld.event.cancelBubble=3Dtrue GetHrefObj( GetSldNum(href) ).mVis=3D1 if (MHTMLPrefix !=3D "") PPTSld.location.replace(MHTMLPrefix+RemoveFilePrefixFromHref(href)) else PPTSld.location.replace(href) } function SldUpdated( id ) { if( id =3D=3D GetHrefObj(gCurSld).mSldHref ) return gPrevSld=3DgCurSld gCurSld=3DGetSldNum(id) if( IsFramesMode() ) { UpdNavPane(); UpdOtlPane(); UpdNtsPane() } } function PrevSldViewed(){ GoToSld( GetHrefObj(gPrevSld).mSldHref ) } function HasPrevSld() { return ( gIsEndShow || ( gCurSld !=3D 1 && GetHrefO= bj( gCurSld-1 ).mVis =3D=3D 1 )||( GetCurSldNum() > 1 ) ) } function HasNextSld() { return (GetCurSldNum() !=3D GetNumSlds()) } function CloseWindow() { if( HideMenu() ) return; =09 var event =3D PPTSld.event; if( !IsFramesMode() && event && (event.keyCode=3D=3D27 || event.keyCode=3D= =3D32 || event.type=3D=3D"click" ) ) window.close( self ); CatchNumKeys( self, event ); } function Unload() { gIsEndShow=3D0; } function SetupEndShow() { gIsEndShow=3D1; PPTSld.document.body.scroll=3D"no"; PPTSld.document.onkeypress=3DCloseWindow; PPTSld.document.onclick=3DCloseWindow; PPTSld.document.oncontextmenu=3D_CM; } function EndShow() { if( IsFramesMode() ) return if( PPTSld.event ) PPTSld.event.cancelBubble=3Dtrue doc=3DPPTSld.document var dir =3D doc.body.dir if( dir !=3D "rtl" ) dir =3D "ltr"; doc.open() doc.writeln('


' + ENDSHOW_MESG + '

') doc.close() } function SetSldVisited(){ GetSldList().mList[gCurSld-1].mVisited=3Dtrue } function IsSldVisited(){ return GetSldList().mList[gCurSld-1].mVisited } function hrefList( sldHref, visible, advDelay, advClk ) { this.mSldHref=3D this.mNtsHref =3D sldHref this.mOrigVis=3D this.mVis =3D visible this.mVisited=3D false this.mAdvDelay=3D advDelay this.mAdvOnClk=3D advClk } function SldList(arr,curSld,fEnd) { this.mCurSld =3D curSld; this.mList =3D new Array(); var idx =3D 1; for(ii=3D0;ii 0) { PushSldList(sldList,fEnd); gCurSld =3D 1; } else if( PPTSld.event ) PPTSld.event.cancelBubble=3Dtrue } function PushSldList(arr,fEnd) { var ii =3D gSldStack.length; gSldStack[ii] =3D new SldList(arr,gCurSld,fEnd); GoToSld( gSldStack[ii].mList[0].mSldHref ); } function PopSldList() { if (gSldStack[gSldStack.length-1].fEndShow) EndShow() else { gCurSld =3D gSldStack[gSldStack.length-1].mCurSld; gSldStack[gSldStack.length-1] =3D null; gSldStack.length--; var sldList =3D gSldStack[gSldStack.length-1]; GoToSld( sldList.mList[gCurSld - 1].mSldHref ); } } var custShowList=3Dnew Array(); /********************************************* Navigation button implementation There are 2 types of buttons: ImgBtn, TxtBtn implemented as function objects. They share a similiar interface so the event handlers can call SetActive, for example, on a button=20 object without needing to know exactly=20 what type of button it is. **********************************************/ //---------------------------------- function ImgBtn( oId,bId,w,action ) //---------------------------------- { var t=3Dthis t.Perform =3D _IBP t.SetActive =3D _IBSetA t.SetInactive=3D _IBSetI t.SetPressed =3D _IBSetP t.SetDisabled=3D _IBSetD t.Enabled =3D _IBSetE t.ChangeIcon =3D null t.UserAction =3D action t.ChgState =3D _IBUI t.mObjId =3D oId t.mBorderId=3D bId t.mWidth =3D w t.mIsOn =3D t.mCurState =3D 0 } function _IBSetA() { if( this.mIsOn ) { obj=3Dthis.ChgState( gHiliteClr,gShadowClr,2 ) obj.style.posTop=3D0 } } function _IBSetI() { if( this.mIsOn ) { obj=3Dthis.ChgState( gFaceClr,gFaceClr,1 ) obj.style.posTop=3D0=20 } } function _IBSetP() { if( this.mIsOn ) { obj=3Dthis.ChgState( gShadowClr,gHiliteClr,2 ) obj.style.posLeft+=3D1; obj.style.posTop+=3D1 } } function _IBSetD() { =20 obj=3Dthis.ChgState( gFaceClr,gFaceClr,0 ) obj.style.posTop=3D0=20 } function _IBSetE( state ) { var t=3Dthis GetObj( t.mBorderId ).style.visibility=3D"visible" if( state !=3D t.mIsOn ) { t.mIsOn=3Dstate if( state ) t.SetInactive() else t.SetDisabled() } } function _IBP() { var t=3Dthis if( t.mIsOn ) { if( t.UserAction !=3D null ) t.UserAction() if( t.ChangeIcon ) { obj=3DGetObj(t.mObjId) if( t.ChangeIcon() ) obj.style.posLeft=3Dobj.style.posLeft+(t.mCurState-4)*t.mWidth else obj.style.posLeft=3Dobj.style.posLeft+(t.mCurState-0)*t.mWidth } t.SetActive() } =20 } function _IBUI( clr1,clr2,nextState ) { var t=3Dthis SetBorder( GetObj( t.mBorderId ),clr1,clr2 ) obj=3DGetObj( t.mObjId ) obj.style.posLeft=3Dobj.style.posLeft+(t.mCurState-nextState)*t.mWidth-obj= .style.posTop t.mCurState=3DnextState return obj } //----------------------------------------- function TxtBtn( oId,oeId,action,chkState ) //----------------------------------------- { var t=3Dthis t.Perform =3D _TBP t.SetActive =3D _TBSetA t.SetInactive=3D _TBSetI t.SetPressed =3D _TBSetP t.SetDisabled=3D _TBSetD t.SetEnabled =3D _TBSetE t.GetState =3D chkState t.UserAction =3D action t.ChgState =3D _TBUI t.mObjId =3D oId t.m_elementsId=3D oeId t.mIsOn =3D 1 } function _TBSetA() { var t=3Dthis if( t.mIsOn && !t.GetState() ) t.ChgState( gHiliteClr,gShadowClr,0,0 ) } function _TBSetI() { var t=3Dthis if( t.mIsOn && !t.GetState() ) t.ChgState( gFaceClr,gFaceClr,0,0 ) } function _TBSetP() { if( this.mIsOn ) this.ChgState( gShadowClr,gHiliteClr,1,1 ) } function _TBSetD() { =20 this.ChgState( gFaceClr,gFaceClr,0,0 ) this.mIsOn =3D 0 } function _TBSetE() { var t=3Dthis if( !t.GetState() ) t.ChgState( gFaceClr,gFaceClr,0,0 ) else t.ChgState( gShadowClr,gHiliteClr,1,1 ) t.mIsOn =3D 1 } function _TBP() { var t=3Dthis if( t.mIsOn ) {=20 if( t.UserAction !=3D null ) t.UserAction() if( !t.GetState ) return if( t.GetState() ) t.SetPressed() else t.SetActive() } =20 } function _TBUI( clr1,clr2,lOffset,tOffset ) { SetBorder( GetObj( this.mObjId ),clr1,clr2 ) Offset( GetObj( this.m_elementsId ),lOffset,tOffset ) } function Offset( obj, top, left ){ obj.style.top=3Dtop; obj.style.left=3Dle= ft } function SetBorder( obj, upperLeft, lowerRight ) { s=3Dobj.style; s.borderStyle =3D "solid" s.borderWidth =3D 1=20 s.borderLeftColor =3D s.borderTopColor =3D upperLeft s.borderBottomColor=3D s.borderRightColor =3D lowerRight } function GetBtnObj(){ return gBtnArr[window.event.srcElement.id] } function BtnOnOver(){ b=3DGetBtnObj(); if( b !=3D null ) b.SetActive() } function BtnOnDown(){ b=3DGetBtnObj(); if( b !=3D null ) b.SetPressed() } function BtnOnOut(){ b=3DGetBtnObj(); if( b !=3D null ) b.SetInactive() } function BtnOnUp() { b=3DGetBtnObj() if( b !=3D null ) b.Perform() else Upd() } function GetNtsState(){ return parent.gNtsOpen } function GetOtlState(){ return parent.gOtlOpen } function GetOtlTxtState(){ return parent.gOtlTxtExp } function NtsBtnSetFlag( fVal ) { s=3Ddocument.all.item( this.m_flagId ).style s.display=3D"none" if( fVal ) s.display=3D"" else s.display=3D"none" } function _BSetA_Border(){ b =3D gBtnArr[this.mObjId]; if( b !=3D null ) b.S= etActive() } function _BSetI_Border(){ b =3D gBtnArr[this.mObjId]; if( b !=3D null ) b.S= etInactive() } function _BSetP_Border(){ b =3D gBtnArr[this.mObjId]; if( b !=3D null ) b.S= etPressed() } function _BSetA_BorderImg() {=20 b =3D gBtnArr[this.mBorderId]=20 if( b !=3D null && this.mIsOn && !b.GetState() ) { obj=3Dthis.ChgState( gHiliteClr,gShadowClr,2 ) obj.style.posTop=3D0 } } function _BSetI_BorderImg() {=20 b =3D gBtnArr[this.mBorderId] if( b !=3D null && this.mIsOn && !b.GetState() ) { obj=3Dthis.ChgState( gFaceClr,gFaceClr,1 ) obj.style.posTop=3D0 } } var gHiliteClr=3D"THREEDHIGHLIGHT",gShadowClr=3D"THREEDSHADOW",gFaceClr=3D"= THREEDFACE" var gBtnArr =3D new Array() gBtnArr["nb_otl"] =3D new TxtBtn( "nb_otl","nb_otlElem",parent.ToggleOtlPan= e,GetOtlState ) gBtnArr["nb_otlElem"] =3D new TxtBtn( "nb_otl","nb_otlElem",parent.ToggleOt= lPane,GetOtlState ) gBtnArr["nb_nts"] =3D new ImgBtn( "nb_nts","nb_ntsBorder",10,parent.ToggleN= tsPane ) gBtnArr["nb_nts"].SetActive =3D _BSetA_BorderImg; gBtnArr["nb_nts"].SetInactive =3D _BSetI_BorderImg; gBtnArr["nb_ntsBorder"] =3D new TxtBtn( "nb_ntsBorder","nb_ntsElem",parent.= ToggleNtsPane,GetNtsState ) gBtnArr["nb_ntsElem"] =3D new TxtBtn( "nb_ntsBorder","nb_ntsElem",parent.To= ggleNtsPane,GetNtsState ) gBtnArr["nb_prevBorder"] =3D gBtnArr["nb_prev"]=3D new ImgBtn( "nb_prev","n= b_prevBorder",30,parent.GoToPrevSld ) gBtnArr["nb_nextBorder"] =3D gBtnArr["nb_next"]=3D new ImgBtn( "nb_next","n= b_nextBorder",30,parent.GoToNextSld ) gBtnArr["nb_sldshw"]=3D new ImgBtn( "nb_sldshw","nb_sldshwBorder",18,parent= .FullScreen ) gBtnArr["nb_sldshwBorder"] =3D new TxtBtn( "nb_sldshw","nb_sldshwBorder",pa= rent.FullScreen,null ) gBtnArr["nb_sldshwBorder"].SetActive =3D _BSetA_Border; gBtnArr["nb_sldshwBorder"].SetInactive =3D _BSetI_Border; gBtnArr["nb_sldshwText"] =3D new TxtBtn( "nb_sldshw","nb_sldshwText",parent= .FullScreen,null ) gBtnArr["nb_sldshwText"].SetActive =3D _BSetA_Border; gBtnArr["nb_sldshwText"].SetInactive =3D _BSetI_Border; gBtnArr["nb_voice"] =3D gBtnArr["nb_voiceBorder"] =3D new ImgBtn( "nb_voice= ","nb_voiceBorder",18,parent.ToggleVNarration ) gBtnArr["nb_otlTxtBorder"] =3D gBtnArr["nb_otlTxt"]=3D new ImgBtn( "nb_otlT= xt","nb_otlTxtBorder",23,parent.ToggleOtlText ) gBtnArr["nb_ntsBorder"].m_flagId=3D "nb_nts" gBtnArr["nb_ntsBorder"].SetFlag =3D NtsBtnSetFlag gBtnArr["nb_otlTxt"].ChangeIcon=3D GetOtlTxtState /********************************************* Context menu implementation _CM() is the function that's hooked up to the oncontextmenu event. Once we're asked to show the menu, we first build it by creating DIVs on-the-fly. Then we position it=20 within the screen area so it doesn't get clipped. Creating the DIVs using createElement() means we don't have to write out any extra HTML into the slide HTML files. **********************************************/ var sNext=3D"Next",sPrev=3D"Previous",sEnd=3D"End Show",sFont=3D"Arial",sAr= row=3D"Arrow",sFreeform=3D"Freeform",sRect=3D"Rectangle",sOval=3D"Oval" function ShowMenu() { BuildMenu(); var doc=3DPPTSld.document.body,x=3DPPTSld.event.clientX+doc.scrollLeft,y= =3DPPTSld.event.clientY+doc.scrollTop m =3D PPTSld.document.all.item("ctxtmenu") m.style.pixelLeft=3Dx if( (x+m.scrollWidth > doc.clientWidth)&&(x-m.scrollWidth > 0) ) m.style.pixelLeft=3Dx-m.scrollWidth m.style.pixelTop=3Dy if( (y+m.scrollHeight > doc.clientHeight)&&(y-m.scrollHeight > 0) ) m.style.pixelTop=3Dy-m.scrollHeight m.style.display=3D"" } function _CM() { if( !parent.IsFullScrMode() ) return; if(!PPTSld.event.ctrlKey) { ShowMenu() return false } else HideMenu() } function BuildMenu() { if( PPTSld.document.all.item("ctxtmenu") ) return var mObj=3DCreateItem( PPTSld.document.body ) mObj.id=3D"ctxtmenu" mObj.style.visibility=3D"hidden" var s=3DmObj.style s.position=3D"absolute" s.cursor=3D"default" s.width=3D"120px" SetCMBorder(mObj,"menu","black") var iObj=3DCreateItem( mObj ) SetCMBorder( iObj, "threedhighlight","threedshadow" ) iObj.style.padding=3D2 CreateMenuItem( iObj,sNext,M_GoNextSld,M_True ) CreateMenuItem( iObj,sPrev,M_GoPrevSld,M_HasPrevSld ) =09 CreateSeparator( iObj ) CreateMenuItem( iObj,sEnd,M_End,M_True ) mObj.style.visibility=3D"visible" } function Cancel() { window.event.cancelBubble=3Dtrue; window.event.returnVa= lue=3Dfalse } function Highlight() { ChangeClr("activecaption","threedhighlight") } function Deselect() { ChangeClr("threedface","menutext") } function Perform() { e=3DPPTSld.event.srcElement if( e.type=3D=3D"menuitem" && e.IsActive() ) e.Action() else PPTSld.event.cancelBubble=3Dtrue } function ChangeClr( bg,clr ) { e=3DPPTSld.event.srcElement if( e.type=3D=3D"menuitem" && e.IsActive() ) { e.style.backgroundColor=3Dbg e.style.color=3Dclr } } function M_HasPrevSld() { return( parent.HasPrevSld() ) } function M_GoNextSld() { if( gIsEndShow ) M_End(); else GoToNextSld() } function M_GoPrevSld() { if( gIsEndShow ) { gIsEndShow=3D0; history.back();= PPTSld.event.cancelBubble=3Dtrue; } else GoToPrevSld() } function M_True() { return true } function M_End() { window.close( self ) } function CreateMenuItem( node,text,action,eval ) { var e=3DCreateItem( node ) e.type=3D"menuitem" e.Action=3Daction e.IsActive=3Deval e.innerHTML=3Dtext if( !e.IsActive() ) e.style.color=3D"threedshadow" e.onclick=3DPerform e.onmouseover=3DHighlight e.onmouseout=3DDeselect s=3De.style; 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charset="us-ascii" CSE 303 - Autum 2006 - Lecture 6 ------=_NextPart_01C6EBCC.9D143200 Content-Location: file:///C:/0D7C54D6/cse303-06au-lecture6_files/outline.htm Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset="us-ascii"
 No= tes
Slide Show
Outline
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