XML file saving loading...

-=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- (c) WidthPadding Industries 1987 0\|568\|0 -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=-
Socoder -> Blitz -> XML file saving loading...
Wed, 12 Dec 2007, 16:14
Toaster	Okay I have this XML file format saving code. I have no clue how it works even after looking at the code and was wondering if some people could shed some light on this... ; ID: 361 ; Author: Blitztastic ; Date: 2002-07-05 08:57:18 ; Title: XML code ; Updated by : Philippe C ; Date: 2004-07-25 ; Description: XML loading/parsing ; XML load / parse functions ; ; updates done: ; => remove Functions And Datas which are not used to load And parse. ; => Add control during the read of the file in order to get syntax errors : ; rough controls are done ; => add 2 new functions in order to simplify the access ; pXMLGetBranch : get a branch of the xml file for a given value ; pXMLGetValue : get the value of the attributes contains in the branch ; May be is not very pure XML parsing but it is convenient to use. ; ; WARNING : ; IN CASE OF WRONG RESULT OPEN FIRST THE FILE WITH IE OR MOZILLA AND CHECK IF THE ; XML FILE IS WITHOUT ERROR. ; WHILE YOU HAVE A WRONG RESULT WITH IE OR MOZILLA THIS LIBRARY WILL RETURN AN ; ERROR MESSAGE OR A WRONG RESULT. ; NO CONTROL ARE DONE ON THE SYNTAX : FOR THIS LIBRARY THE XML FILE IS PERFECT ! ; A ROUGH CONTROL HAS BEEN ADDED, BUT IT IS NOT POSSIBLE TO KNOW WHERE THE ERROR(s) COME FROM. ; ;_____________________________________________________________________________________________________ ; TYPE ;_____________________________________________________________________________________________________ Type sdXMLnodelist Field node.sdxmlnode Field nextnode.sdxmlnodelist Field prevnode.sdxmlnodelist End Type ; for internal use, do not use in code outside of this file Type sdXMLworklist Field node.sdxmlnode End Type Type sdXMLnode Field tag$,value$,path$ Field fileid ; linkage functionality Field firstchild.sdXMLnode Field lastchild.sdXMLnode Field childcount Field nextnode.sdXMLnode Field parent.sdXMLnode End Type Global SDXMLFILEID ;_____________________________________________________________________________________________________ ; FUNCTION ;_____________________________________________________________________________________________________ Function sdReadXML.sdXMLnode(filename$) infile = ReadFile(filename$) SDXMLFILEID=MilliSecs() x.sdxmlnode = sdXMLReadNode(infile,Null) CloseFile infile Return x End Function ; adds node to end of list (need separate function for insert, or mod this on) Function sdXMLAddNode(parent.sdxmlnode,node.sdxmlnode) If parent <> Null ;gak debuglog "Parent of node = ["+parent\tag$+"]" If parent\childcount = 0 Then parent\firstchild = node Else parent\lastchild\nextnode = node End If parent\lastchild = node parent\childcount = parent\childcount +1 node\path$ = parent\path$+parent\tag$ End If node\parent = parent node\path$=node\path$+"/" ;gak debuglog "path to ["+node\tag$+"]={"+node\path$+"}" End Function Function sdXMLSelectNodes.sdxmlnodelist(node.sdxmlnode,path$,recurse=True) root.sdxmlnodelist=Null sdxmlselectnodesi(node,path$,recurse) prev.sdxmlnodelist=Null c = 0 For wl.sdxmlworklist = Each sdxmlworklist c = c + 1 nl.sdxmlnodelist = New sdxmlnodelist nl\node = wl\node If prev = Null Then root = nl prev = nl Else prev\nextnode = nl nl\prevnode = prev End If prev = nl Delete wl Next ;gak debuglog "XML: "+c+" nodes selected" Return root End Function ; internal selection function, do not use outside this file Function sdXMLSelectNodesI(node.sdxmlnode,path$,recurse=True) workList.sdXMLworklist=Null ;gak debuglog "------------- Perfoming Select ("+path$+")------------" If node = Null Then ;gak debuglog "Search node is null!!!" End If ret.sdXMLnode = Null p=Instr(path$,"/") If p > 0 Then tag$=Left$(path$,p-1) a.sdxmlnode = node While a<>Null ;gak debuglog "Looking for {"+path$+"} in {"+a\path$+a\tag$+"/} {"+Lower(Right$(a\path$+a\tag$+"/",Len(path$)))+"} @" If Lower(path$)=Lower(Right$(a\path$+a\tag$+"/",Len(path$))) Then workList = New sdXMLworklist workList\node = a ;gak debuglog ">>FOUND" End If If a\firstchild <> Null And (recurse) Then sdXMLSelectNodesI(a\firstchild,path$) End If a = a\nextnode Wend End If End Function Function sdXMLReadNode.sdxmlnode(infile,parent.sdXMLnode,pushed=False) mode = 0 root.sdxmlnode = Null cnode.sdxmlnode = Null x.sdXMLnode = Null ispushed = False done = False errorLT = 0 ; philippe c errorGT = 0 ; philippe c errorSL = 0 ; philippe c While (Not done) And (Not Eof(infile)) c = ReadByte(infile) If c<32 Then c=32 ch$=Chr$(c) ; ;gak debuglog "{"+ch$+"} "+c+" mode="+mode Select mode Case 0 ; looking for the start of a tag, ignore everything else If ch$ = "<" Then errorLT= errorLT + 1 ; philippe C mode = 1; start collecting the tag End If Case 1 ; check first byte of tag, ? special tag If ch$ = "?" Or ch$ = "!" Then mode = 0; class special nodes as garbage & consume Else If ch$ = "/" Then errorSL = errorSL + 1 ; philippe C mode = 2 ; move to collecting end tag ;x\endtag$=ch$ ;gak debuglog " found end tag" Else cnode=x x.sdxmlnode = New sdxmlnode x\fileid = SDXMLFILEID; global indicator to group type entries (allows multiple XML files to be used) sdXMLaddNode(cnode,x) If cnode=Null Then root=x x\tag$=ch$ mode = 3 ; move to collecting start tag End If End If Case 2 ; collect the tag name (close tag) If ch$=">" Then errorGT= errorGT + 1 ; philippe C mode = 0 ; end of the close tag so jump out of loop If x = Null Then RuntimeError "error parsing : open the file with IE or MOZILLA to check you xml file and found the error" tmptagPHC$ = x\tag x = x\parent End If Case 3 ; collect the tag name If ch$=" " Then ;gak debuglog "TAG:"+x\tag$ mode = 4 ; tag name collected, move to collecting attributes Else If ch$="/" Then errorSL = errorSL + 1 ; philippe C ;gak debuglog "TAG:"+x\tag$ mode = 2; start/end tag combined, move to close Else If ch$=">" Then errorGT= errorGT + 1 ; philippe C ;gak debuglog "TAG:"+x\tag$ mode = 20; tag closed, move to collecting value Else x\tag$ = x\tag$ + ch$ End If End If End If Case 4 ; start to collect attributes If Lower(ch$)>="a" And Lower(ch$)<="z" Then aname$=ch$; mode = 5; move to collect attribute name Else If ch$=">" Then errorGT= errorGT + 1 ; philippe C x\value$="" mode = 20; tag closed, move to collecting value Else If ch$="/" Then errorSL = errorSL + 1 ; philippe C mode = 2 ; move to collecting end tag ;gak debuglog " found end tag" End If End If End If Case 5 ; collect attribute name If ch$="=" Then ;gak debuglog "ATT:"+aname$ aval$="" mode = 6; move to collect attribute value Else aname$=aname$+ch$ End If Case 6 ; collect attribute value If c=34 Then mode = 7; move to collect string value Else If c <= 32 Then ;gak debuglog "ATV:"+aname$+"="+aval$ mode = 4; start collecting a new attribute Else aval$=aval$+ch$ End If End If Case 7 ; collect string value If c=34 Then ;gak debuglog "ATV:"+aname$+"="+aval$ mode = 4; go and collect next attribute Else aval$=aval$+ch$ End If Case 20 ; COLLECT THE VALUE PORTION If ch$="<" Then errorLT = errorLT + 1 ; philippe C ;gak debuglog "VAL:"+x\tag$+"="+x\value$ mode=1; go to tag checking Else x\value$=x\value$+ch$ End If End Select If Eof(infile) Then done=True Wend ; added by philippe C ; control : the amount of > is equal to the amount of < If errorLT <> errorGT Then RuntimeError "error parsing missing '< or >' : open the file with IE or MOZILLA to check the xml file and found the error(s)" EndIf ; control : the amount of > has to be always even If errorLT <> Int(errorLT/ 2) * 2 Then RuntimeError "error parsing missing ' tag>' : open the file with IE or MOZILLA to check the xml file and found the error(s)" EndIf ; control : the amount of > has to be always even If errorGT <> Int(errorGT/ 2) * 2 Then RuntimeError "error parsing missing '<tag ' : open the file with IE or MOZILLA to check the xml file and found the error(s)" EndIf ; control : the amount of / is equal to the amount of <tag> divide by 2 If errorGT/2 <> errorSL Then RuntimeError "error parsing missing '/' in a tag : open the file with IE or MOZILLA to check the xml file and found the error(s)" EndIf Return root End Function ;-------------------------------------------------------------------------------- ; functions added par Philippe c ;-------------------------------------------------------------------------------- Function pXmlGetBranch.sdxmlnodeList(node.sdxmlnode,path$,value$) ; this function return the complete xml file branch for a path and given value ; e.g : path="game/players/player/uid/",value="2" branch.sdxmlnodelist = Null branch.sdxmlnodelist = sdxmlselectnodes(node,path) While branch <> Null If branch\node\value = value Return branch EndIf branch=branch\nextnode Wend Return branch End Function Function pXmlGetValue$(node.sdxmlnode,pathValue$) ; this function return the value in alhpanumeric value associate to a complete path in a branch ; this function has to be used with : sdXMLselectnodesValue path.sdxmlnodelist = Null path.sdxmlnodelist = sdxmlselectnodes(node,pathValue) If path <> Null Then Return path\node\value$ Else Return "" EndIf End Function ;-------------------------------------------------------------------------------- ; test if the xml file is ok and attributes ok. Performance test ;-------------------------------------------------------------------------------- Function test(file$="") ; change the value between bracket" If Len(file) = 0 Then file = testCreateFile() Delay 1000 ; OS close the file timet = MilliSecs() timeTotal = timet x.sdxmlnode = sdReadXML(file) time1 = MilliSecs()-timet timet = MilliSecs() nl.sdxmlnodelist = pXmlGetBranch(x,"game/players/player/uid/","2") time2 = MilliSecs()-timet timet = MilliSecs() v1$ = pXmlGetValue(nl\node,"game/players/player/path/") time3 = MilliSecs()-timet timet = MilliSecs() v2$ = pXmlGetValue(nl\node,"game/players/player/follow/") time4 = MilliSecs()-timet timet = MilliSecs() nl = Null time5 = MilliSecs()-timet timet = MilliSecs() Delete nl time6 = MilliSecs()-timet timet = MilliSecs() Delete x time7 = MilliSecs()-timet timet = MilliSecs() timetotal = timet - timetotal Print "--------------" Print "time1 = " + time1 + " ms read the xml file" Print "time2 = " + time2 + " ms search a branch" Print "time3 = " + time3 + " ms search an attribute" Print "time4 = " + time4 + " ms search an attribute" Print "time5 = " + time5 + " ms put null into type" Print "time6 = " + time6 + " ms delete type" Print "time7 = " + time7 + " ms delete type" Print " ----" Print "TOTAL = " + timeTotal + " ms" Print "--------------" Print " " Print "seached value :" Print "v1 = " + v1$ Print "v2 = " + v2$ WaitKey End Function Function testCreateFile$(file$ = "test.xml") If FileType(file) <> 0 Then DeleteFile file fileOut = WriteFile(file) Restore startdata Read number For T = 1 To number Read ligne$ WriteLine fileout,ligne$ Next CloseFile fileout ligne$ = "result stored in : " + CurrentDir() + file For i = 1 To Len(ligne) Step 40 Print Mid$(ligne,i,40) Next Print Return file$ End Function ;_____________________________________________________________________________________________________ ; to comment when the library is used in a program or uncomment to test xml file test() ; xml file .startdata Data 31 Data "<game>" Data " <players>" Data " <player>" Data " <uid>1</uid>" Data " <mouseAuthorised>1</mouseAuthorised>" Data " <keyboardAuthorised>1</keyboardAuthorised>" Data " <automatic>0</automatic>" Data " <path>PATH1</path>" Data " <follow>NO</follow>" Data " <playerType>1</playerType>" Data " </player>" Data " <player>" Data " <uid>2</uid>" Data " <mouseAuthorised>1</mouseAuthorised>" Data " <keyboardAuthorised>1</keyboardAuthorised>" Data " <automatic>0</automatic>" Data " <path>PATH2</path>" Data " <follow>YES</follow>" Data " <playerType>1</playerType>" Data " </player>" Data " <player>" Data " <uid>3</uid>" Data " <mouseAuthorised>1</mouseAuthorised>" Data " <keyboardAuthorised>1</keyboardAuthorised>" Data " <automatic>0</automatic>" Data " <path>PATH3</path>" Data " <follow>NO</follow>" Data " <playerType>1</playerType>" Data " </player>" Data " </players>" Data "</game>" ;_____________________________________________________________________________________________________ --v I have no clue how this works and I want to use it to save the particle settings for each particle I create that way it can easily be changed by the artist giving them more control over the particle. -Toaster
Wed, 12 Dec 2007, 16:28
Jayenkai	Nodes, lists, yada yada. I tried understanding that XML reader when I wanted to use XML. Then I gave up, and coded my own instead. XML Reader It's really easy to use, just pass bits of text to filter through the xml! The example xml file is the big chunk at the bottom, and it should be easy to understand exactly what the top half's doing. To write out to xml, it's really just a simple text file, but with <section>pieces like this</section> all over the place.. All you have to do is ensure that everything's got an open and close tag, and to make things look neater, ensure it all indents like a properly formatted program would. -=-=- ''Load, Next List!''
Wed, 12 Dec 2007, 16:59
Toaster	Okay I looked at yours and it was rather slow but I think I understand how XML works in blitz. Thanks for the code! -Toaster
Wed, 12 Dec 2007, 21:54
Toaster	Okay so I ended up figuring out how the other one works. I hope your not too disappointed jay yours just ran alittle too slow. Here's what the XML looks like and it loads it perfectly! <start> <emiter> <number>1</number> <texture> <path>media/particles.png</path> <flags>59</flags> <rows>2</rows> <columns>4</columns> <alpha>True</alpha> <multiply>False</multiply> <add>True</add> <frame>3</frame> </texture> <EmitterPosition> <x>-10</x> <y>0</y> <z>15</z> </EmitterPosition> <EmitterRotation> <Pitch>0</Pitch> <Yaw>-180</Yaw> <Roll>0</Roll> </EmitterRotation> <EmitterVelocity> <x>0</x> <y>0</y> <z>.45</z> </EmitterVelocity> <EmitterSizeFrom> <x>1.4</x> <y>.46</y> <z>1</z> </EmitterSizeFrom> <EmitterSizeTo> <x>5.6</x> <y>8</y> <z>1</z> </EmitterSizeTo> <EmitterColorFrom> <red>215</red> <green>222</green> <blue>255</blue> <alpha>.8</alpha> </EmitterColorFrom> <EmitterColorTo> <red>90</red> <green>100</green> <blue>149</blue> <alpha>0</alpha> </EmitterColorTo> <EmitterSizeJitter> <x>.4</x> <y>.4</y> <z>.4</z> <Uniform>1</Uniform> <up>1</up> <Down>0</Down> </EmitterSizeJitter> <EmitterVelocityJitter> <x>0</x> <y>0</y> <z>.02</z> </EmitterVelocityJitter> <EmitterGravityJitter> <x>.06</x> <y>1</y> <z>0</z> </EmitterGravityJitter> <EmitterColorJitter> <red>20</red> <green>10</green> <blue>0</blue> <alpha>0</alpha> <Uniform>1</Uniform> <up>1</up> <Down>0</Down> </EmitterColorJitter> <EmitterGravity> <Gravity>.02</Gravity> <Enabled>1</Enabled> </EmitterGravity> <EmitterWaitSpan> <Span>1</Span> <Jitter>0</Jitter> </EmitterWaitSpan> <EmitterRandomRotation> <Pitch>0</Pitch> <Yaw>3</Yaw> <Roll>0</Roll> </EmitterRandomRotation> <EmitterLifespan> <Span>100</Span> <Jitter>16</Jitter> <up>0</up> <Down>0</Down> </EmitterLifespan> <EmitterBlend>1</EmitterBlend> <EmitterWeight>.1</EmitterWeight> <EmitterEmissionRate>1</EmitterEmissionRate> <EmitterCulling>1</EmitterCulling> <EmitterSorting>1</EmitterSorting> <EmitterRollMode>1</EmitterRollMode> </emiter> </start> --v