Re: [NTG-context] Regular expressions in Lua.
Hi! As ranges are sometimes handy I've added a parser to the core Nice. I will use it as soon as it is available. It is a very good thing that range specifications will be uniform across different modules. André Caldas. ___ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : http://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___
Re: [NTG-context] Regular expressions in Lua.
On 12/15/2012 1:12 AM, Andre Caldas wrote: Hi! I have to use pattern matching in lua. I tried the function string.gmatch. I want to match (iterate over) strings of the type ([0-9]+)(-([0-9]*))?(,|$) For example: 1,3- (iterations: 1 and 3-) 1-3,6,7 (iterations: 1-3 then 6 then 7) 1-2,5-6,10- (iterations 1-2 then 5-6 then 10-) function whatever(str,n,action) action = action or print for s in string.gmatch(str,[^,]+) do local a, b, c = string.match(s,^(%d+)(%-?)(%d-)$) if c ~= then for i=tonumber(a),tonumber(c) do action(i) end elseif b ~= then for i=tonumber(a),n or tonumber(a) do action(i) end elseif a then action(tonumber(a)) end end end whatever(1,3-,5,function(i) print(,i) end) whatever(1-3,6,7) whatever(1-2,5-6,10-,30) - Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com | www.pragma-pod.nl - ___ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : http://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___
Re: [NTG-context] Regular expressions in Lua.
Hello, Hans! I had just managed to do it. I will switch to yours instead of mine... I don't have any experience in Lua. Sorry for bothering with such easy requests... By the way, simplesteps recognizes number ranges! :-) https://bitbucket.org/andrecaldas/context-simplesteps/src/1c7ced45208b78289590008760daa3bac05ec503/mod/tex/context/third/simplesteps/simplesteps.lua?at=default#cl-37 Thank you, André Caldas. ___ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : http://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___
Re: [NTG-context] Regular expressions in Lua.
On 12/15/2012 2:10 AM, Andre Caldas wrote: Hello, Hans! I had just managed to do it. I will switch to yours instead of mine... I don't have any experience in Lua. Sorry for bothering with such easy requests... As ranges are sometimes handy I've added a parser to the core (no upload yet, will happen sometime next week) -- utilities.parsers.stepper(1,3-,5,function(i) print(,i) end) -- utilities.parsers.stepper(1-3,6,7) -- utilities.parsers.stepper(1-3,6,7,function(i) print(,i) end) -- utilities.parsers.stepper(1:3,6,7) -- utilities.parsers.stepper( 1 : 3, ,7 ) -- utilities.parsers.stepper(1-2,5-6,25-*,30) So: - * as optional final value symbol - optional spaces around : and, and around list - - as well as : - Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com | www.pragma-pod.nl - ___ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : http://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___
