Anyone familiar with XPath knows that using the translate function in XSL can replace a string by character. For example:
Translate ("bar", "ABC", "ABC") will get the bar
Translate ("-- AAA --", "ABC-", "ABC") will get AAA.
However, if you want to replace a substring with another substring, you cannot use translate for xpath1.0.
Generally, there are two methods to replace strings in XSL:
(1) Use MS: script to embed the XSL implementation, but the XML Parser must be MS.
(2) Use a pure XSL template.
Of course, the advantage of using method (1) Is that JavaScript's powerful string processing functions can be fully utilized, for example, regular expressions. Here we use a pure XSL template to replace strings. The source code is as follows, and the following part is an example for testing:
<? XML version = "1.0" encoding = "gb2312"?>
<XSL: stylesheet version = "1.0" xmlns: XSL = "http://www.w3.org/1999/XSL/Transform">
<! -- String replacement template -->
<! --
Copyright copyright ye jiansheng yjs_lh@sohu.com Co., yjs_lh@sina.com.
@ Version 1.0 2005.04.19 on Nanping, Chongqing
-->
<XSL: Template Name = "stringreplace">
<XSL: Param name = "srcstring"/>
<XSL: Param name = "fromstring"/>
<XSL: Param name = "tostring"/>
<XSL: Choose>
<XSL: When test = "contains ($ srcstring, $ fromstring)">
<XSL: value-of select = "substring-before ($ srcstring, $ fromstring)"/>
<XSL: value-of select = "$ tostring"/>
<XSL: Call-Template Name = "stringreplace">
<XSL: With-Param name = "srcstring" select = "substring-after ($ srcstring, $ fromstring)"/>
<XSL: With-Param name = "fromstring" select = "$ fromstring"/>
<XSL: With-Param name = "tostring" select = "$ tostring"/>
</XSL: Call-template>
</XSL: When>
<XSL: otherwise> <XSL: value-of select = "$ srcstring"/> </XSL: otherwise>
</XSL: Choose>
</XSL: Template>
<! -- Only used for testing. You can delete this template when using it. -->
<XSL: template match = "/">
<HTML>
<Body>
<Table border = "1">
<Caption> string replacement function </caption>
<Tr>
<TH> source string </Th>
<TH> fromstring </Th>
<TH> tostring </Th>
<TH> replacement result </Th>
</Tr>
<XSL: For-each select = "// s">
<Tr>
<TD>
<XSL: value-of select = "Source"/>
</TD>
<TD>
<XSL: value-of select = "from"/>
</TD>
<TD>
<XSL: value-of select = "to"/>
</TD>
<TD>
<XSL: Call-Template Name = "stringreplace">
<XSL: With-Param name = "srcstring" select = "Source"/>
<XSL: With-Param name = "fromstring" select = "from"/>
<XSL: With-Param name = "tostring" select = "to"/>
</XSL: Call-template>
</TD>
</Tr>
</XSL: For-each>
</Table>
</Body>
</Html>
</XSL: Template>
</XSL: stylesheet>
XML used for testing:
<? XML version = "1.0" encoding = "gb2312"?>
<Root>
<S>
<Source> asdflaksdjfalsdkfjaslkdjf </source>
<From> A </from>
<To> BBB </to>
</S>
<S>
<Source> asdflaksdjfalsdkfjaslkdjf </source>
<From> flaksdjfals </from>
<To> BBB </to>
</S>
<S>
<Source> asdflaksdjfalsdkfjaslkdjf </source>
<From> djfa </from>
<To> BBB </to>
</S>
<S>
<Source> asdflaksdjfalsdkfjaslkdjf </source>
<From> SDF </from>
<To> vvv </to>
</S>
<S>
<Source> I am not the publisher </source>
<From> Sichuan </from>
<To> Chongqing </to>
</S>
<S>
<Source> select * from table where a = B </source>
<From >=</from>
<To> * = </to>
</S>
</Root>
Conversion Result:
| Source string | Fromstring | Tostring | Replacement result |
|---|---|---|---|
| Asdflaksdjfalsdkfjaslkdjf | A | Bbb | Bbbsdflbbbksdjfbbblsdkfjbbbslkdjf |
| Asdflaksdjfalsdkfjaslkdjf | Flaksdjfals | Bbb | Asdbbbdkfjaslkdjf |
| Asdflaksdjfalsdkfjaslkdjf | Djfa | Bbb | Asdflaksbbblsdkfjaslkdjf |
| Asdflaksdjfalsdkfjaslkdjf | SDF | Vvv | Avvvlaksdjfalsdkfjaslkdjf |
| I am not a publisher | Sichuan | Chongqing | I am not from Chongqing |
| Select * from table where a = B | = | * = | Select * from table where a * = B |
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