Digital Workshop

This should be simple but I cannot seem to get my head around it!

How can I get just the filename from the text below?

"C:\Documents and Settings\Clive.HOME\My Documents\A presentation about me.ppt"

This is stored in a variable that has been got using the 'file browse' action. I need to be able to get any filename selected.

Any help would be appreciated as always.

Regards

Clive Cartmel

Hi Clive,

For want of a better method, I'd read the string backwards, checking for the '\' character. When I found it, I'd read it into a substring from there -1 to end.

Mackavi

Clive,
Loved this check...
Exhausted the scripting ideas on getting this done, characterset details seems to ignore "\" all together hence couldn't read a character at a time and break the line up at the "viewable" "\" character.
in UNIX there is a command basename and dirname that can split the data for you, google basename.exe, a few sources for this bit of code ported to windows environment.

Good old fashioned ASCII

Enjoy

function theGetPath()
{
var myPathLength = myPath.length //finds length of the path
var myLoop = 0
var myFound = false

while (myFound == false)
{
if (myPath.charCodeAt(myPathLength) == 92) myFound = true //escapes when '\' has been found
if (myPathLength == 0) myFound = true //escapes loop once end of string is reached.
myPathLength--
} //EOWhile

myFilename = myPath.substring(myPathLength+2,myPath.length) //Read filename substring in myFilename publication variable.

}

Mackavi

P.S

http://www.asciitable.com/

mackavi,
Hi was following that route and hit a snag, please try echoing each characters dec value of the string given, for some reason, I can get "\" to be seen within opus unless it is escaped "\\"

var name = "C:\Documents and Settings\Clive.HOME\My Documents\A presentation about me.ppt"

within opus, character count is less by equal number of "\".

Hi eomc,

Sorry, a little confused. Are you trying to read the filename from the path like Clive?

I entered the string, into my test publication:

C:\Documents and Settings\Clive.HOME\My Documents\A presentation about me.ppt

and it extracted A presentation about me.ppt part.

mackavi,
Got to my Opus PC and it works fine...thanks

Mackavi,

Many thanks - this works a treat.

I knew what I wanted to do but had not seen the charCodeAt function.

Many thanks for this and it is good to see that others can also benefit from it as well.

Regards

Clive Cartmel

It isn't in the manual

Glad it helps.

It may not be in the manual but it is in the online help. I looked for 'text objects' and it is not listed as a text opbect function - a bit odd perhaps!

Clive

Here's some more that's not in the help or the manual

this takes the full path in <a>
and returns the file name in <b>

a = escape(a)
a=a.substring(a.lastIndexOf("%5c",String.length(a))+3,String.length(a))
b=unescape(a)

HTH
Chris

Very interesting as usual from you Chris!

Where does the 'escape' bit come from?

Regards

Clive

Hi Clive

escape and unescape come from EMCA
they convert and unconvert special chars to and from hex
(the hex for \ is %5c)

these two functions have been included in Opus since V2
but have yet to be documented

Really, I never thought they would be useful outside of
PostWebData until this came up.

Cheers
Chris

Chris Jones,
A few weeks back I downloaded a pdf on ECMAScript, and on reading the escape/unescape from this query, I found it tacked away in that long document on this programming language, Would I assume rightly that opus has implemented all ecmascript functions an that they are not fully documented in opus, or is it that a subset of the functions available in ecmascript have been implemented?

No, there are only a few which are not included
in the documentation.
But there are several that are reserved for possible
future implementation.

Here are the undocumented ones that are currently functional

escape()
unescape()
array.sort()
array.reverse()

HTH
Chris