I have a list of names in a text file. In [sreadtfile] I get the name (a line from the file) and then in [swavfile] I concat some strings to build the path. At the end of this subpatch I have the proper "open path/filename" message but it won't work (I receive a "readsf~: no method for 'open tts/penelope/jais.wav' $1: argument number out of range" in the write) BUT if I copy and paste any of those messages into another message box (the one at the most right in the left image) the thing works and [readsf~] receives the proper command and the files is opened. Am I missing something here? some hidden character is in the constructed filename?

---This is driving me nuts, thanks for any help, guys!

pd-sol.zip

@prandam Hi, what you are doing in [swavfile] can be done with one message box, you just have to insert $1 in place of the name stored in the text file, the message substitutes $1 with the first item it receives. Once you sent the open message, readsf~ needs a start message sent each time you want to play the newly loaded sample. You can send consecutive messages in the same message box by using the comma as a separator.
solsolsol_2.pd

@prandam it works if you put the generated filename into an "open $1" message.
i am not sure, but it seems that a space that is typed (or pasted) into a message and a space that is part of a symbol and then set into a message are not the same...
and you need to bang the message after it is set, but i still get this error message then: "readsf~: no method for 'open ../sound/bell.aiff'" while it works, like you wrote, when I paste the message into another message.

@weightless That's totally right! (the logic behind swavfile is that I would access multiple folders (so the pàthname would change using some rules) --but I can do the exact same thing using this method. Thanks a lot! Really helpful.

Hi @Jona, the solution by @weightless works --and is easier and cleaner than whatever I was doing. Thanks for your message!

@prandam You can have many different variables in a message, which you call with $1, $2 etc. You can put them in whichever order you want to construct the message. This would be an example:

Also this abstraction might be useful (I don't remember who made it) to split the filename from its path.
vsplitfilename.pd
vsplitfilename-help.pd

@weightless Great! this will come in handy for sure. Thanks a lot.