" ladder -- generate a ladder-like output
"
" $Id$
" Carlos Duarte <cgd@teleweb.pt>, 991025
"
""""""""
" '1' -> '12' -> '123' -> '1234' ... 
" use a map to generate the last char
"
""""""""
" example 1: digits map
"
map g "yyy"yp$"yyl0i/: :01:12:23:34:45:56:67:78:89:90;0l"yp0"y3x@y
ll"yyl0df;$"yp
"
""""""""
" example 2: lower alpha map
"
"map g "yyy"yp$"yyl0i/: :ab:bc:cd:de:ef:fg:gh:hi:ij:jk:kl:lm:mn:no:op:pq:qr:rs:st:tu:uv:vw:wx:xy:yz:za;0l"yp0"y3x@y
ll"yyl0df;$"yp
"
""""""""
" removes the last char
"
map q yyp$x