@replace weirdness

[jabelli]

I’m trying to make an esc function for echoing stuff containing special chars without having to use quotes.

Why does

echo %@replace[^|,^^|,%@replace[^^,^^^^,foo|bar]]

evaluate to

foo^^|bar

?

It seems to be doing the ^ replacement after doing the | replacement.

echo %@replace[^|,^^|,foo|bar]

evaluates to

foo^|bar

as expected. My full esc function works as expected if the ^ replacement is omitted.

27.6G C:\Users\johnb\tmp> eset /f esc
esc=%@replace[^>,^^>,%@replace[^<,^^<,%@replace[^&,^^&,%@replace[^|,^^|,%$]]]]

27.6G C:\Users\johnb\tmp> echo %@esc[&|<>]
&|<>

(n.b. To enter this function at the command line, double all ^s)

function esc=`%@replace[^^>,^^^^>,%@replace[^^<,^^^^<,%@replace[^^&,^^^^&,%@replace[^^|,^^^^|,%$]]]]`

 

[Steve Fabian]

Suggest you look into Charles Dye's SAFECHARS.DLL - available at ftp://prospero.unm.edu/safechars.zip or http://prospero.unm.edu/dl/safechars.zip