(Objective-C) Scrub Xml

Demonstrates the Scrub method for some common XML cleaning needs.

Note: This example requires Chilkat v9.5.0.77 or greater.

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#import <NSString.h>
#import <CkoXml.h>

// The Scrub method has options for trimming whitespace from the ends of attributes and content,
// trimming inside whitespace, and for case conversion for tags and attribute names.

// Trimming inside whitespace is defined as replacing CR, LF, and tab chars with SPACE chars, and 
// removing extra SPACE chars so that at most one SPACE separates non-SPACE chars.

// For example, load the following XML:

NSString *s = @"<xyz><td class=\" colHoldingPercent col7\" style=\"border-bottom-color: rgb(221, 221, 221);               border-image-outset: 0;  \"> abc\r\n123    456</td></xyz>";

CkoXml *xml = [[CkoXml alloc] init];
BOOL success = [xml LoadXml: s];

NSLog(@"%@",[xml GetXml]);

// The XML before scrubbing is:

// <xyz>
//     <td class=" colHoldingPercent col7" style="border-bottom-color: rgb(221, 221, 221);               border-image-outset: 0;  ">abc
// 123    456</td>
// </xyz>

[xml Scrub: @"AttrTrimEnds,AttrTrimInside,ContentTrimEnds,ContentTrimInside"];
NSLog(@"%@",[xml GetXml]);

// The XML after scrubbing is:

// <?xml version="1.0" encoding="utf-8"?>
// <xyz>
//     <td class="colHoldingPercent col7" style="border-bottom-color: rgb(221, 221, 221); border-image-outset: 0;">abc 123 456</td>
// </xyz>