XML experts please help me

[BaabuBangaram]

I have to implement a packet which will be in xml format

<Printer>

         <printdata attr=here I have hexadecimaldata>

        </printdata>

</Printer>

This xml packet will be input to my one function. I need to read the  hexadecimal data and process it further.

my question is how to pass hexadecimal data and then while parsing how to parse it. I environment programming in C and embedded linux platform

[BaabuBangaram]

LTT

[fake_Bezawada]

 <printdata yourattr="0023233232372372">

ila pedathav value attribute lo aythe

ledu ah tag lo value pettali ante 

<printdata >008327932792323 </printdata> ila vuntundhi

iha pothe parsing antava C lo ela cheyalo teliyadu but java lo aythe manchi APIS vunayi

[fake_Bezawada]

idedo kanipinchindhi idenemo chudu

#include <libxml/parser.h>

[BaabuBangaram]

1 hour ago, fake_Bezawada said:

 <printdata yourattr="0023233232372372">

ila pedathav value attribute lo aythe

ledu ah tag lo value pettali ante 

<printdata >008327932792323 </printdata> ila vuntundhi

iha pothe parsing antava C lo ela cheyalo teliyadu but java lo aythe manchi APIS vunayi

array of hex bytes kaavali

like 0x123, 0x456,0x678

[MegaPowerRockstar]

C# aythe you can use xml qury and  xpath to extract the data in attribute

XML Data:

<Employees>
  <EmployeeName id ="Ven234">Venkata Sreenivas</EmployeeName>
  <EmployeeAge>30</EmployeeAge>
<Employees>

Code:

XPathNavigator xpathCancelType = xPathNav.SelectSingleNode("//Employees/EmployeeName");

                if (xpathCancelType != null)
                {
                    var personID = xpathCancelType.GetAttribute("id", "");
                }

[karthikn]

5 hours ago, BaabuBangaram said:

I have to implement a packet which will be in xml format

<Printer>

         <printdata attr=here I have hexadecimaldata>

        </printdata>

</Printer>

This xml packet will be input to my one function. I need to read the  hexadecimal data and process it further.

my question is how to pass hexadecimal data and then while parsing how to parse it. I environment programming in C and embedded linux platform

<![CDATA[]]>

 look into this tag n how to read it

[Luke]

29 minutes ago, karthikn said:

<![CDATA[]]>

 look into this tag n how to read it

 

[MegaPowerRockstar]

3 hours ago, karthikn said:

<![CDATA[]]>

 look into this tag n how to read it

use the below code to read data from string variable

string sourceData = ""; // xml content is here

byte[] sourceBytes = Encoding.UTF8.GetBytes(sourceData);
                MemoryStream sourceStream = new MemoryStream(sourceBytes);
                
                XPathDocument sourceXPathDoc = new XPathDocument(new StringReader(sourceData));
                sourceMappingXNav = sourceXPathDoc.CreateNavigator();

[karthikn]

17 minutes ago, MegaPowerRockstar said:

use the below code to read data from string variable

string sourceData = ""; // xml content is here

byte[] sourceBytes = Encoding.UTF8.GetBytes(sourceData);
                MemoryStream sourceStream = new MemoryStream(sourceBytes);
                
                XPathDocument sourceXPathDoc = new XPathDocument(new StringReader(sourceData));
                sourceMappingXNav = sourceXPathDoc.CreateNavigator();

pilladu c and embedded anta.. can't use this

also XDocument XElement chala better compared to XPath.. direct ga descendantnodes attributes find cheyadam

[dasara_bullodu]

9 hours ago, BaabuBangaram said:

I have to implement a packet which will be in xml format

<Printer>

         <printdata attr=here I have hexadecimaldata>

        </printdata>

</Printer>

This xml packet will be input to my one function. I need to read the  hexadecimal data and process it further.

my question is how to pass hexadecimal data and then while parsing how to parse it. I environment programming in C and embedded linux platform

 

 

 

 

 

Hex to decimal conversion aithe

 

0x123 = (3 * 16^0) + (2 * 16^1) + (1 * 16^2)

 

basically sum of (n * 16^(reverse index of n)) for each number

if n = a, make it 10, b -> 11, c -> 12, d -> 13, e -> 14, f -> 15

 

decimal to hex conversion aithe

123

 

n = 123

first number = n %16 - (if firstnumber = 10, make it a, 11 -> b, 12 -> c, 13-> d, 14-> e, 15 -> f)

then n = n/16

secondnumber  = n % 16

...

do this till n > 0

 

 

 

 

[BaabuBangaram]

7 hours ago, dasara_bullodu said:

Hex to decimal conversion aithe

 

0x123 = (3 * 16^0) + (2 * 16^1) + (1 * 16^2)

 

basically sum of (n * 16^(reverse index of n)) for each number

if n = a, make it 10, b -> 11, c -> 12, d -> 13, e -> 14, f -> 15

 

decimal to hex conversion aithe

123

 

n = 123

first number = n %16 - (if firstnumber = 10, make it a, 11 -> b, 12 -> c, 13-> d, 14-> e, 15 -> f)

then n = n/16

secondnumber  = n % 16

...

do this till n > 0

 

 

 

 

Direct hex bytes pampinchalem antaav anthena.......hex ni integer loki convert cheyyali antaav

[fake_Bezawada]

array vunaya neeku hex then make multiple tags 

<Printer>

         <printdata>hex data 1</printdata>

<printdata>hex data 2</printdata>

<printdata>hex data 3</printdata>

<printdata>hex data 4</printdata>

<printdata>hex data 5</printdata>

</Printer>

parse chesi napudu motham values common tag name tho call chesthe array loki vatchesthay