213 lines
4.7 KiB
Forth
Executable file
213 lines
4.7 KiB
Forth
Executable file
#!/usr/bin/env retro
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================================================================
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_ _ _ _
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| |_ __ _| | ____ ___ _(_)_ __(_) crc's new listener for
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| __/ _` | |/ / _` \ \ /\ / / | '__| | RetroForth
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| || (_| | < (_| |\ V V /| | | | |
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\__\__,_|_|\_\__,_| \_/\_/ |_|_| |_| ** UNDER DEVELOPMENT **
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================================================================
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# Terminal Configuration
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Setup the text output buffer dimensions.
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~~~
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#80 'TOB:W const
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#25 'TOB:H const
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~~~
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Setup the local terminal dimensions.
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TODO: some systems may provide this in the environment. See if
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this can be pulled in automatically if present?
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~~~
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#105 'LT:W const
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#30 'LT:H const
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~~~
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# Dependencies
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Load depenencies from the library.
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~~~
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{ 'konilo 'termina 'tob } &library:load a:for-each
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~~~
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# Configure UI Colors
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~~~
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:dss:label (-) fg:red ;
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:dss:value (-) fg:yellow ;
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:dss:sep (-) fg:cyan ;
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:dss:prompt (-) bg:blue fg:white ;
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~~~
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# Utilities
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I intend for takawiri to provide a variety of useful tools to
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aid in using RetroForth interactively.
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This word provides access to retro-describe(1).
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~~~
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:describe (s-)
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'retro-describe_"%s" s:format file:R unix:popen
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[ dup file:read dup c:put n:zero? ] until unix:pclose ;
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~~~
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# Watchlist
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The watchlist will allow monitoring a small number of addresses
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in the right panel of the interface. A use case might be to
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do something like:
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'Base &Base watch
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'Compiler &Compiler watch
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~~~
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{ 'Add_Zero
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'Heap____
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'Compiler
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'________
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'________
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} 'WatchlistLabels d:create #5 , &, a:for-each
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'Watchlist d:create #5 ,
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#0 ,
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&Heap ,
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&Compiler ,
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#5 allot
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:watch (sa-) drop-pair ;
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:unwatch (a-) drop ;
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:watchlist (-)
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#19 #5 [ dup #84 vt:row,col
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dss:label &WatchlistLabels over #19 n:sub a:fetch s:put sp
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dss:value &Watchlist over #19 n:sub a:fetch
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fetch n:put n:inc vt:reset ] times drop ;
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~~~
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# UI
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First are words to display the text output buffer.
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~~~
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:bar:right (-) dss:sep TOB:H n:inc [ I n:inc TOB:W #2 n:add vt:row,col $| c:put ] indexed-times vt:reset ;
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:bar:bottom (-) dss:sep TOB:H n:inc #1 vt:row,col TOB:W n:inc [ $= c:put ] times $+ c:put vt:reset ;
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:display:tob (-) tob:display bar:right bar:bottom ;
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~~~
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Draw the section separators.
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~~~
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:length (-n) LT:W TOB:W #4 n:add n:sub ;
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:--- (n-) [ $- c:put ] times sp ;
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:sections (-)
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dss:sep
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#6 TOB:W #4 n:add vt:row,col length ---
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#12 TOB:W #4 n:add vt:row,col length ---
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#18 TOB:W #4 n:add vt:row,col length ---
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vt:reset ;
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~~~
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~~~
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'Items d:create #0 comma #32 allot
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:dss
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[ depth #5 n:min !Items
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&Items fetch-next [ store-next ] times drop
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&Items a:reverse [ ] a:for-each
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#0 &Items [
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over n:inc #6 n:add #84 vt:row,col
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dss:label
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over n:zero? [ 'TOS:___ s:put ] [ '_______ s:put ] choose
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vt:reset
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n:put
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n:inc ] a:for-each
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drop ] gc ;
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~~~
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This is the start of code to display temporary strings on the
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data stack. The plan is to have it show below the stack values,
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in a format like:
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<depth> <first XX characters>
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The <depth> data will match up to the values in the stack disp.
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Note: this won't be useful until after the alternate `s:evaluate`
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is done.
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~~~
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:ss/later (-)
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#0 &Items [ dup STRINGS gt? [ over n:inc #12 n:add #84 vt:row,col s:put ] &drop choose n:inc ] a:for-each drop
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;
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~~~
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~~~
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:layout:stat,col (-n) #84 ;
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:layout:stat (sn-) layout:stat,col vt:row,col dss:label s:put dss:value ;
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:stats
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'HERE:__ #1 layout:stat here n:put
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'FREE:__ #2 layout:stat FREE n:put
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'DEPTH:_ #3 layout:stat depth n:put
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'ROW:___ #4 layout:stat @TY n:put
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'COL:___ #5 layout:stat @TX n:put
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vt:reset
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;
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#1 #2 #3 #4 #5
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:prompt (-)
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dss:prompt
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LT:H #1 vt:row,col LT:W [ sp ] times
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LT:H #1 vt:row,col '>>_ s:put ;
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~~~
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Start of work on a new input model. The current one uses
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`s:evaluate`, which works, but burns through the temporary
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strings pool. For this to be practical, I need to avoid doing
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that, so it's time to write a replacement.
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~~~
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'InputStream d:create #1025 allot
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'Len var
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'At var
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:end? (-f) @At @Len gt? ;
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:c:get-from-input (-c)
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&InputStream @At fetch &At v:inc end? [ &c:get unhook ] if ;
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:s:get/input s:get &InputStream s:copy &c:get-from-input &c:get set-hook ;
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~~~
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~~~
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:ui
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&err:notfound unhook
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&banner tob:with
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[ vt:reset vt:clear vt:home
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display:tob
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sections
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stats dss (ss watchlist
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prompt s:get vt:reset
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[ dup s:put nl s:evaluate ] tob:with
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] forever ;
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ui
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~~~
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================================================================
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Things needed:
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- termios device & words (or add termios to unix device?)
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- colors for interface elements
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- write a better alternative to `s:evaluate` to avoid consuming
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the temporary string space
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- refactor & document everything
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================================================================
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