Re: ReplaceRegExp installation / invocation help

[Peter Reilly]

On 11/7/06, Beims Bob-RWBC70 <[EMAIL PROTECTED]> wrote:

Sorry for the newbie question ... I didn't find a search option @
http://mail-archives.apache.org/mod_mbox/ant-user/ and 30+ minutes with
Google couldn't help me find what I'm looking for ...

I'm trying to use the ReplaceRegExp ant task in a build file with the
DITA Open Toolkit (http://dita-ot.sourceforge.net/). That should tell
you that I'm *not* a Java developer; I know just enough about Ant to be
dangerous.

I can't figure out what I'm doing wrong in my installation ... here's
what I've done to try and get ReplaceRegExp to work:

   1. read the info @
http://ant.apache.org/manual/OptionalTasks/replaceregexp.html
   2. downloaded the jakarta-oro-2.0.8.jar and jakarta-regexp-1.4.jar
packages
   3. placed the class packages in my /ant/lib directory
   4. included the code below at the end of my dita2xhtml target

<property name="ant.regexp.regexpimpl"
value="org.apache.tools.ant.util.regexp.JakartaOroRegexp"/>
<replaceregexp flags="g">
  <regexp pattern="(&lt;img
src=\&quot;)([^\\.]+\\.svg)(\&quot;/?&gt;)"/>
  <substitution expression="&lt;embed src=\&quot;$2\&quot;
type=\&quot;image/svg+xml\&quot;&gt;&lt;/embed&gt;"/>
  <fileset
dir="${output_base}xhtml${file.separator}${ip_type}${file.separator}${ma
p_name}" includes="**/*.html"/>
</replaceregexp>

(What I'm attempting to do is wrap SVG files in embed tags rather than
an img tags ... I've tested the regular expression with a GREP utility
and it does what I want.)

You may need to "quote the quotes"(tm)
Your regex has >, " etc, if these are in the regex you tested
with grep, they need to be quoted for ant (as ant uses XML).

the \\ may need to be replaced with just a single \.
as the \\ is to escape the \ for the shell with using grep
"(<img src=\")([^\.]+\.svg)(\"/?>)"/
of course it now looks completely like line noise. (xml/regex/xml encoding)

It may be better to use a task that is designed for xml processing:
like: xmltask - http://www.oopsconsultancy.com/software/xmltask/
or use xslt.

When I execute the target, the XHTML transform executes as expected (it
produces a working set of .html files), but there is absolutely no
effect from the replaceregexp task ... nothing in the log file, no
changes to output files ... zilch.

if the regex does not match anything, nothing happens.

Peter

Any clues?
Bob

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