diff options
Diffstat (limited to 'challenge-278/deadmarshal/lua/ch-2.lua')
| -rw-r--r-- | challenge-278/deadmarshal/lua/ch-2.lua | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/challenge-278/deadmarshal/lua/ch-2.lua b/challenge-278/deadmarshal/lua/ch-2.lua new file mode 100644 index 0000000000..d368132923 --- /dev/null +++ b/challenge-278/deadmarshal/lua/ch-2.lua @@ -0,0 +1,16 @@ +#!/usr/bin/env lua + +local function reverse_string(s,e) + assert(type(s) == 'string' and + type(e) == 'string','s and e must be strings!') + local t,idx = {},string.find(s,e,1,true) + if idx == nil then return s end + for i=1,idx do t[#t+1] = s:sub(i,i) end + table.sort(t) + return table.concat(t,'') .. s:sub(idx+1,#s) +end + +print(reverse_string('challenge','e')) +print(reverse_string('programming','a')) +print(reverse_string('champion','b')) + |