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\\ Retro Forth Editor cas20130106 This is a port of the Retro Forth Editor from http://retroforth.org Functions: <b> s Select a new block <b> p Previous block n Next block <l> i ... Insert ... into line <l> <c> <l> ia ... Insert ... into line <l> at column <c> x Clear (erase) the current block <l> Clear line <l> v Display current block e Evaluate (load) current block .( Retro Forth block editor volksForth Atari ST) \ cas20130106$10 constant l/b cr : (block) scr @ block ; : (line) c/l * (block) + ; : row dup c/l type c/l + cr ; : .rows l/b 0 do i . row loop ; : .block ." Block: " scr @ dup . updated? abs $2A + emit space ; : +--- ." +---" ; : :--- ." :---" ; : x--- +--- :--- +--- :--- ; : --- space space x--- x--- x--- x--- cr ; : vb --- scr @ block .rows drop --- ; : .stack ." Stack: " .s ; : status .block .stack ; : v cr vb status ; : v* update v ; : s dup scr ! block drop v ; : ia (line) + >r &10 parse r> swap move v* ; : i 0 swap ia ; : d (line) c/l bl fill v* ; : x (block) l/b c/l * bl fill v* ; : p -1 scr +! v ; : n 1 scr +! v ; : e scr @ load ; cr .( editor loaded ) cr
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