Am 28.05.24 um 20:06 schrieb Hans Hagen:
On 5/28/2024 6:25 PM, Tomáš Hála wrote:
Hi Pablo,
unfortunately, that it is not possible:
http://lua-users.org/wiki/PatternsTutorial, section Limitations.
\starttext
\startTEXpage[pagestate=start, offset=1em]
\startluacode
local pat = (lpeg.Cmt(lpeg.P("this") + lpeg.P("that"),
function(str,_,s)
context(s)
return #str
end) + lpeg.P(1))^1
lpeg.match(pat,"how about this being that")
local pat = (lpeg.Cmt(lpeg.oneof({ "this", "that" }),
function(str,_,s)
context(s)
return #str
end) + lpeg.P(1))^1
lpeg.match(pat,"how about this being that")
\stopluacode
\stopTEXpage
\stoptext
See also Taco’s introduction to LPEG in
https://articles.contextgarden.net/journal/2019/77-98.pdf
Hraban
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