Thread: Parse floats of "XML" like files?

Here i come with my weird question.

I just made a little program to convert different kind of lines into another type and vise versa.

Example:

Code:

CreateObject(11428,-2311.8000000,-1245.4000000,246.6000100,0.0000000,8.0000000,208.0000000,700.0);

into CreateDynamicObject(11428,-2311.8000000,-1245.4000000,246.6000100,0.0000000,8.0000000,208.0000000,700.0);

or CreateDynamicObject(11428,-2311.8000000,-1245.4000000,246.6000100,0.0000000,8.0000000,208.0000000,700.0);

into  <object id="object" breakable="true" interior="17" alpha="255" model="3077" doublesided="false" scale="1" 
     dimension="0" posX="-957.5" posY="1888.1" posZ="4" rotX="0" rotY="0" rotZ="90"></object>

The only missing step i need to complete is:

Code:

 <object id="object (nf_blackboard) (4)" breakable="true" interior="17" alpha="255" model="3077" doublesided="false" 
    scale="1" dimension="0" posX="-957.5" posY="1888.1" posZ="4" rotX="0" rotY="0" rotZ="90"></object> 
into CreateObject or CreateDyanmicObject

Unfortunately i have no idea how to parse all the floats and integers. I read several tutorials about AsmXML, eXpat, Xerces-c, libxml and other parsers but its still too complicated to me.
The given examples only had 1 value per line but here i have at least 6 floats per line!

Thats what i currently made [C] #include <stdio.h> #include <asm-xml.h> /* (1) CreateObject (2) CreateDynami - Pastebin.com
Is there a way to parse the values by using fscanf like i did for the other types? (CreateObject CreateDyanmicObject) or do i have to do something else like replacing all the other strings and using fscanf then?

I would be glad to receive some help and maybe someone could show me how to use a parser in this case.

Well if your input isn't exactly XML, then using an XML parser is a waste of time, since XML has to be well-formed.

How about pasting an actual copy of your input file, and write out by hand what you expect to see from it.
Your XML object bares no resemblance to anything else in your post.

Thanks for your post!

Unfortunately i always have a huge mass of these lines. At least 300000-500000 lines or around 40MB up to 100MB so thats not an option unfortunately

Thats the kind of file i want to use as input
Dont know if its XML

Code:

<map edf:definitions="editor_main">
    <object id="object (BinNt07_LA) (3)" breakable="true" interior="0" alpha="255" model="1337" doublesided="false" scale="1" dimension="0" posX="2503.64844" posY="-1572.14575" posZ="49.1593"></object>
</map>

So i want to parse model posX posY posZ rotX rotY rotZ and put it into this format
CreateObject(model,posX,posY,posZ,rotX,rotY,rotZ); //object (BinNt07_LA) (3)

Sorry, but not being able to provide a minimal worked example is a cop-out.

That you have large files is irrelevant.
If we can show you how to deal with 1 line, then dealing with 10000000 lines is just the same thing in a loop.

There's always drop-box, unless your files are some commercial / state secret.


> Thats the kind of file i want to use as input
What?
Your first post suggested XML was output, now it's input.

OK, so given
<object id="object (BinNt07_LA) (3)" breakable="true" interior="0" alpha="255" model="1337" doublesided="false" scale="1" dimension="0"
posX="2503.64844" posY="-1572.14575" posZ="49.1593"></object>
What sort of output are you expecting?


> Dont know if its XML
It looks like it.

If you want help on your code, post it here within code tags, not pastebit or some other external site.

So thats given <object id="object (BinNt07_LA) (3)" breakable="true" interior="0" alpha="255" model="1337" doublesided="false" scale="1" dimension="0"
posX="2503.64844" posY="-1572.14575" posZ="49.1593"></object>

I want to ignore everything except modelid="1337" posX="2503.64844" posY="-1572.14575" posZ="49.1593"

I want to store these values into vars.
Later i want to put them into this order
CreateObject(modelid,posX,posY,posZ,..);

So the result should be: CreateObject(1337,2503,64844,-1572.14575,49.1593);


Okay no problem.
Thats what i got at the moment

Code:

#include <stdio.h>

/*
(1) CreateObject
(2) CreateDynamicObject
(3) XML (MTA)


*/
int inputtype=0;
int outputtype=0;

objecttype()
{
    printf("\nValid Object types\n");
    printf("CreateObject: (1)\n");
    printf("CreateDynamicObject: (2)\n");
    printf("XML (MTA): (3)\n");
    
}

int main ( int argc, char *argv[] )
{
    if ( argc != 2 ) 
    {
        
        printf( "Usage: %s [filename]\n", argv[0] );
    }
    else 
    {    
        FILE *fIn = fopen(argv[1], "r");
        if ( fIn == 0 )
        {
            printf( "Could not open file\n" );
        }
        else
        {    
            
            int inputtype=0;
            int i=0;
            int model = 0, items = 0;
            float pos[3] = {0}, rot[3] = {0};
            
            objecttype();
            printf("\nSpecify input object type:\n");
            scanf("%i",&inputtype);
            if(inputtype != 1 || inputtype != 2 || inputtype != 3)
            {
                objecttype();
            }
            int outputtype=0;
            printf("\nSpecify output object type:\n");
            scanf("%i",&outputtype);
            if(outputtype != 1 || inputtype != 2 || inputtype != 3)
            {
                objecttype();
            }
            if(outputtype == inputtype)
            {
                printf("You cannot convert objects into the same type!");
            }
            else
            {
                

                
                FILE *fOut = fopen("output.txt", "wb");
                
                
                if(inputtype == 1)//CreateObject Inputtype
                {
                    while ((items = fscanf(fIn, "%*[^-0123456789]%d%*[,]%f%*[,]%f%*[,]%f%*[,]%f%*[,]%f%*[,]%f%*s", &model, &pos[0], &pos[1], &pos[2], &rot[0], &rot[1], &rot[2])) != EOF)
                    {    
                        if(outputtype == 3)
                        {
                            if (items == 7)
                            {
                                fprintf(fOut, "<object id=\"object (Konvert)(%d)\" breakable=\"true\" interior=\"0\" collisions=\"true\" alpha=\"255\" model=\"%d\" doublesided=\"false\" scale=\"1\" dimension=\"0\" posX=\"%.7g\" posY=\"%.7g\" posZ=\"%.7g\" rotX=\"%.7g\" rotY=\"%.7g\" rotZ=\"%.7g\"></object>\n", i,model, pos[0], pos[1], pos[2], rot[0], rot[1], rot[2]);
                                
                            }
                        }
                        if(outputtype == 2)
                        {
                            if (items == 7)
                            {
                                fprintf(fOut, "CreateDynamicObject(%d,%f,%f,%f,%f,%f,%f);// Object (%d)\n",model, pos[0], pos[1], pos[2], rot[0], rot[1], rot[2],i);
                                
                            }
                        }

                        i++;
                    }
                    
                    
                }
                if(inputtype == 2)//CreateDynamicObject Inputtype
                {
                    while ((items = fscanf(fIn, "%*[^-0123456789]%d%*[,]%f%*[,]%f%*[,]%f%*[,]%f%*[,]%f%*[,]%f%*s", &model, &pos[0], &pos[1], &pos[2], &rot[0], &rot[1], &rot[2])) != EOF)
                    {    
                        if(outputtype == 3)
                        {
                            if (items == 7)
                            {
                                fprintf(fOut, "<object id=\"object (Konvert)(%d)\" breakable=\"true\" interior=\"0\" collisions=\"true\" alpha=\"255\" model=\"%d\" doublesided=\"false\" scale=\"1\" dimension=\"0\" posX=\"%.7g\" posY=\"%.7g\" posZ=\"%.7g\" rotX=\"%.7g\" rotY=\"%.7g\" rotZ=\"%.7g\"></object>\n", i,model, pos[0], pos[1], pos[2], rot[0], rot[1], rot[2]);
                                
                            }
                        }
                        if(outputtype == 1)
                        {
                            if (items == 7)
                            {
                                fprintf(fOut, "CreateObject(%d,%f,%f,%f,%f,%f,%f);// Object (%d)\n",model, pos[0], pos[1], pos[2], rot[0], rot[1], rot[2],i);
                                
                            }
                        }

                        i++;
                    }
                    
                    
                }
                if(inputtype == 3)//XML Inputtype !!!! NOTE!!!! NOT WORKING
                {
                    while ((items = fscanf(fIn, "%*[^-0123456789 a-zA-Z ><\]%d%f%f%f%f%f%f%",&model, &pos[0], &pos[1], &pos[2], &rot[0], &rot[1], &rot[2])) != EOF)
                    {    
                        if(outputtype == 3)
                        {
                            if (items == 7)
                            {
                                fprintf(fOut, "<object id=\"object (Konvert)(%d)\" breakable=\"true\" interior=\"0\" collisions=\"true\" alpha=\"255\" model=\"%d\" doublesided=\"false\" scale=\"1\" dimension=\"0\" posX=\"%.7g\" posY=\"%.7g\" posZ=\"%.7g\" rotX=\"%.7g\" rotY=\"%.7g\" rotZ=\"%.7g\"></object>\n", i,model, pos[0], pos[1], pos[2], rot[0], rot[1], rot[2]);
                                
                            }
                        }
                        if(outputtype == 2)
                        {
                            if (items == 7)
                            {
                                fprintf(fOut, "CreateDynamicObjectObject(%d,%f,%f,%f,%f,%f,%f);// Object (%d)\n",model, pos[0], pos[1], pos[2], rot[0], rot[1], rot[2],i);
                                
                            }
                        }
                        if(outputtype == 1)
                        {
                            if (items == 7)
                            {
                                fprintf(fOut, "CreateObject(%d,%f,%f,%f,%f,%f,%f);// Object (%d)\n",model, pos[0], pos[1], pos[2], rot[0], rot[1], rot[2],i);
                                
                            }
                        }

                        i++;
                    }
                    
                    
                }
                fclose(fOut);
                fclose(fIn);
                printf("%d Objekt(e) konvertiert.\n\n",i);
                return 0;
            }
        }
    }
}

I hope my second post is being activated as well heh.

Cribbed from http://veillard.com/XML/example/gjobread.c
API reference List of function manipulating types in libxml2

The input XML

Code:

<?xml version="1.0"?>
<thing xmlns:edf="http://edf.com">
<map edf:definitions="editor_main">
    <object id="object (BinNt07_LA) (3)" breakable="true" interior="0" alpha="255" model="1337" doublesided="false" scale="1" dimension="0" posX="2503.64844" posY="-1572.14575" posZ="49.1593"></object>
</map>
</thing>

The code

Code:

#include <stdio.h>
#include <libxml/xmlmemory.h>
#include <libxml/parser.h>

void walker(xmlNodePtr cur,int level) {
  while ( cur != NULL ) {
    printf("%*s%s\n",level*4,"",cur->name);
    if ( xmlStrcmp(cur->name, (const xmlChar *)"object") == 0 ) {
      xmlChar *p = xmlGetProp(cur, (const xmlChar *)"id");
      if ( p ) {
        printf("%*s object ID=%s\n",level*4+4,"",p);
      }
    }
    if ( cur->xmlChildrenNode ) {
      walker(cur->xmlChildrenNode,level+1);
    }
    cur = cur->next;
  }
}

void *parseModelFile( const char *filename ) {
    xmlDocPtr doc;
    xmlNodePtr cur;

    doc = xmlParseFile(filename);
    if (doc == NULL) return(NULL);
    
    cur = xmlDocGetRootElement(doc);
    if (cur == NULL) {
        fprintf(stderr,"empty document\n");
	xmlFreeDoc(doc);
	return(NULL);
    }
    walker(cur->xmlChildrenNode,0);
    xmlFreeDoc(doc);
    return "";
}

int main(int argc, char **argv) {
 #ifdef LIBXML_SAX1_ENABLED
    int i;
    /* COMPAT: Do not genrate nodes for formatting spaces */
    xmlKeepBlanksDefault(0);

    for (i = 1; i < argc ; i++) {
	if ( !parseModelFile(argv[i]) ) {
            fprintf(stderr,"Error parsing %s\n",argv[i]);
        }
    }

    /* Clean up everything else before quitting. */
    xmlCleanupParser();
#else
    printf(stderr,"LIBXML_SAX1_ENABLED needed\n");
#endif
    return 0;
}

Compile and run

Code:

$ gcc -Wall -I/usr/include/libxml2 foo.c -lxml2
$ ./a.out foo.xml
map
    object
         object ID=object (BinNt07_LA) (3)
$

Look at the output I posted.
Do you see any quote marks?

Attribute values are strings, with the quotation removed.

So yes, you can parse it directly with sscanf.

Originally Posted by Knogle

Here i come with my weird question.

I just made a little program to convert different kind of lines into another type and vise versa.

Code:

 <object id="object (nf_blackboard) (4)" breakable="true" interior="17" alpha="255" model="3077" doublesided="false" 
    scale="1" dimension="0" posX="-957.5" posY="1888.1" posZ="4" rotX="0" rotY="0" rotZ="90"></object> 
into CreateObject or CreateDyanmicObject

Unfortunately i have no idea how to parse all the floats and integers

Parsing floats and integers is easy, just call strtod for a float and strtol for an integer. The hard part is getting the XML hierarchical structure successfully navigated

I suggest you take a look at my "vanilla" XML parser. It's not a proper XML parser, just something which which will parse simple XML.

Vanilla XML Parser