[NTG-context] Re: regular expression as lua pattern

29 May 2024

      On 5/28/24 20:06, Hans Hagen wrote:
...
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
Many thanks for your reply, Hans.

I will have to study it becasue LPEGs is new stuff for me.

Many thanks for your help,

Pablo

[NTG-context] Re: regular expression as lua pattern

Pablo Rodriguez