Textpattern CMS support forum
You are not logged in. Register | Login | Help
- Topics: Active | Unanswered
Pages: 1
trim + replace with multiple terms?
In my attempt to replace rah_repeat with a core tags, is there a way of doing trim and replace for multiple values at once?
My use case is changing the language of weekday codes:
<txp:evaluate trim="mo,tu,we,th,fr,sa,su" replace="mo,di,mi,do,fr,sa,su"><txp:variable name="weekday" /></txp:evaluate>I have no luck with this and my guess is that it’s using the entire string rather than the individual values.
TXP Builders – finely-crafted code, design and txp
Offline
Re: trim + replace with multiple terms?
Nope, because presuming that commas always act as separator is restrictive. rah_repeat has a separator attribute (comma by default), but there is no global equivalent (break and breakby are already overcharged).
In your case, though, there is a weird core way:
<txp:evaluate query='substring("mo,di,mi,do,fr,sa,su", 1+string-length(substring-before("mo,tu,we,th,fr,sa,su", "<txp:variable name=''weekday'' />")), 2)' />Offline
Re: trim + replace with multiple terms?
Hmm, clever. I did wonder if there was an XPath way but was looking at matches (which is not listed on MND as an xpath function?).*
If I’ve understood your method correctly, you’re getting the position of the matching weekday in the original text string, then using that character position to get the corresponding 2-letter segment of the replacement text string. I don’t think I would have thought of that.Thanks for the suggestion, but for now I’ve stuck with rah_replace that still works well for this situation, not least because I have another situation (the corresponding JSON-LD part to schema.org opening times) where I’ve replaced with Monday, Tuesday, Wednesday, etc. and those terms don’t have a regular length.
TXP Builders – finely-crafted code, design and txp
Offline
Re: trim + replace with multiple terms?
jakob wrote #338949:
I did wonder if there was an XPath way but was looking at matches (which is not listed on MND as an xpath function?).*
Unfortunately, XPath 1.0 functions set (implemented in php) is quite small, but you know you can extend it via a pref.
Thanks for the suggestion, but for now I’ve stuck with rah_replace that still works well for this situation, not least because I have another situation (the corresponding JSON-LD part to schema.org opening times) where I’ve replaced with Monday, Tuesday, Wednesday, etc. and those terms don’t have a regular length.
Yep, it wouldn’t work here. But there is a small room for an Easter Egg: break attribute in, say,
<txp:evaluate break=",">th</txp:evaluate>is useless (there is nothing to join). So we could consider that it applies to trim/replace:
<txp:evaluate trim="mo,tu,we,th,fr,sa,su" replace="mo,di,mi,do,fr,sa,su" break=",">th</txp:evaluate>would replace ‘th’ with ‘do’ like rah_replace. Actually, str_replace() function used therein is a bit tricky: try
<txp:rah_replace from="a,b" to="b,a">ab</txp:rah_replace>We might fix this too.
Offline
Pages: 1