iPhone版XSLT [英] Version of XSLT in iPhone

问题描述

我计划在我的iPhone应用程序中使用XML / XSLT。

I plan to use XML/XSLT in my iPhone application.

iPhone目前支持哪种版本的XSLT？我可以使用XSLT 2.0或1.0吗？

What version of XSLT is currently supported on the iPhone? Can I use XSLT 2.0 or just 1.0 ?

推荐答案

使用 libxslt iPhone OS实际上很容易：

Using libxslt on the iPhone OS is actually quite easy:

1. 下载libxslt的源代码，然后解压缩。


2. 将标题搜索路径添加到libxslt目录您的构建设置。另外，在那里添加libxml-headers的路径（通常 /Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS3.0.sdk/usr/include/libxml2 ）。


3. 将libxml2.2.dylib和libxslt.dylib添加到链接框架（XcodeGroups& Files面板中：右键单击Frameworks - >添加 - >现有框架...）。


4. 创建一个简单的XML文件及其XSL格式。

1. Download the source-code of libxslt and extract it.
2. Add the "libxslt" dir to Header search paths in your build settings. Also, add the path to the libxml-headers there (usually /Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS3.0.sdk/usr/include/libxml2).
3. Add libxml2.2.dylib and libxslt.dylib to the linked frameworks (Xcode "Groups & Files" panel: right click on "Frameworks" --> "Add" --> "Existing Frameworks...").
4. Create a simple XML file and its XSL tranformation.

最后，您可以使用类似于上面示例的代码将转换结果转换为 NSString （例如，在 UIWebView 中）：

And finally you can use a code similar to the sample above to get the tranformation result into an NSString (e.g. to display in in a UIWebView):

#import <libxml/xmlmemory.h>
#import <libxml/debugXML.h>
#import <libxml/HTMLtree.h>
#import <libxml/xmlIO.h>
#import <libxml/xinclude.h>
#import <libxml/catalog.h>
#import <libxslt/xslt.h>
#import <libxslt/xsltInternals.h>
#import <libxslt/transform.h>
#import <libxslt/xsltutils.h>

...

NSString* filePath = [[NSBundle mainBundle] pathForResource: @"article" ofType: @"xml"];
NSString* styleSheetPath = [[NSBundle mainBundle] pathForResource: @"article_transform" ofType:@"xml"];

xmlDocPtr doc, res;

// tells the libxml2 parser to substitute entities as it parses your file
xmlSubstituteEntitiesDefault(1);
// This tells libxml to load external entity subsets
xmlLoadExtDtdDefaultValue = 1;

sty = xsltParseStylesheetFile((const xmlChar *)[styleSheetPath cStringUsingEncoding: NSUTF8StringEncoding]);
doc = xmlParseFile([filePath cStringUsingEncoding: NSUTF8StringEncoding]);
res = xsltApplyStylesheet(sty, doc, NULL);

char* xmlResultBuffer = nil;
int length = 0;

xsltSaveResultToString(&xmlResultBuffer, &length, res, sty);

NSString* result = [NSString stringWithCString: xmlResultBuffer encoding: NSUTF8StringEncoding];

NSLog(@"Result: %@", result);

free(xmlResultBuffer);

xsltFreeStylesheet(sty);
xmlFreeDoc(res);
xmlFreeDoc(doc);

xsltCleanupGlobals();
xmlCleanupParser();

这篇关于iPhone版XSLT的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！