document femto

about.txt

@@ -15,6 +15,7 @@ test-regex.tal     some testing code for regex.tal
 grep.tal           very simple grep program using regex.tal
 
 femto.tal          very early work-in-progress terminal-based editor
+femto.txt          progress and documentation for femto
 femto              launcher shell script for femto.tal
 
 rainbow.tal        demo to draw ANSI colors directory to the terminal

femto.tal

@@ -275,7 +275,7 @@
     JMP2r
 
 @input-error "input 20 "error 00
-@demo-path "math32.txt 00
+@demo-path "math32.tal 00
 
 ( col is 0-79, row is 0-23 )
 @cursor [ &col 00 &row 00 ]

femto.txt

@@ -0,0 +1,30 @@
+femto text editor
+
+based on nano.
+
+draws graphics using ANSI control sequences.
+
+this means the terminal must be in raw mode with echo
+turned off. the `femto` wrapper script achieves this
+using `sttry raw -echo` (it also restores the previous
+terminal settings on exit).
+
+current status:
+ - hardcoded input path
+ - can't save changes
+ - no page up/down
+ - at least one delete bug
+ - doesn't support long lines/horizontal scrolling
+ - no search (or search&replace)
+ - no help messages/status bar context
+ - hardcodes 80x24 dimensions even on larger terminals
+
+special key bindings
+ C-a   go to beginning of line
+ C-b   move back one character
+ C-d   delete
+ C-e   go to end of line
+ C-f   move forward one character
+ C-n   move down one line
+ C-p   move up one line
+ C-x   quit

mksite.sh

@@ -1,5 +1,5 @@
 #!/bin/sh
 
-for NAME in about.txt math32.tal test-math32.tal tester.py primes32.tal regex.tal repl-regex.tal test-regex.tal grep.tal femto.tal femto rainbow.tal drums.tal drums2.tal bfloat16.tal fixed.tal; do
+for NAME in about.txt math32.tal test-math32.tal tester.py primes32.tal regex.tal repl-regex.tal test-regex.tal grep.tal femto.tal femto.txt femto rainbow.tal drums.tal drums2.tal bfloat16.tal fixed.tal; do
     cp $NAME /var/www/plastic-idolatry.com/html/erik/nxu
 done