PBasic Language Pack

A language pack for CodeMirror built using Lezer designed to provide insight into PBasic v2.5 code.

Implemented Language Features

AST Parsing

• [x] General language syntax
  • [x] Arithmetic expressions
  • [x] Expression grouping
  • [x] Significant line endings
  • [x] Line ending stand-ins via :
  • [x] Pattern matching
  • [x] Compile-time if/else, select NOTE: all compile-time information is currently shoved under the 'Preprocessor' token
• [x] VAR / CON declarations
  • [x] general syntax
  • [x] BIT / NIB / BYTE / WORD
  • [x] <TYPE>(N) arrays
• [x] .LOWBYTE / .HIGHBYTE
• [x] AUXIO
• [x] BRANCH
• [x] BUTTON
• [x] COMPARE
• [x] CONFIGPIN
• [x] COUNT
• [x] DATA
  • [x] named DATA
  • [x] WORD-typed DATA
  • [x] @address-ed DATA
  • [x] reserved DATA
  • [x] repeated DATA
  • [x] expressions in DATA
• [x] DEBUG / SER / I2C / LCD, IN and OUT forms
  • [x] simple DEBUG
  • [x] all format specifiers
  • [x] all special cases
• [x] DO ... LOOP
  • [x] DO WHILE ...
  • [x] DO UNTIL ...
  • [x] DO ... LOOP WHILE
  • [x] DO ... LOOP UNTIL
  • [x] DO ... LOOP
• [x] DTMFOUT
• [x] END
• [x] EXIT
• [x] FOR ... NEXT
• [x] FREQOUT
• [x] GET
• [x] GOSUB
• [x] GOTO
• [x] HIGH
• [x] IF ... THEN ... ELSE
  • [x] IF ... THEN
  • [x] ELSEIF
  • [x] ELSE
• [x] INPUT
• [x] IOTERM
• [x] LCDCMD
• [x] LOOKDOWN
• [x] LOOKUP
• [x] LOW
• [x] MAINIO
• [x] NAP
• [x] ON ... GOSUB/GOTO
• [x] OUTPUT
• [x] OWIN
• [x] OWOUT
• [x] PAUSE
• [x] POLL___
• [x] PULSIN
• [x] PULSOUT
• [x] PUT
• [x] PWM
• [x] RANDOM
• [x] RCTIME
• [x] READ
• [x] RETURN
• [x] REVERSE
• [x] RUN
• [x] SELECT ... CASE
  • [x] Simple cases
  • [x] Multiple cases
  • [x] Comparison cases
  • [x] Range cases
  • [x] Else case
• [x] SHIFTIN
• [x] SHIFTOUT
• [x] SLEEP
• [x] STOP
• [x] STORE
• [x] TOGGLE
• [x] WRITE
• [x] XOUT

Todo: test it all :D

FAQ:

• Use syntaxTree() to get the syntax tree from a editor state. THere is no obvious documentation which states this >:(
• Many of the necessary types for interfacing with the library are private, so sometimes using type PrivType = Parameters<fnWithPrivType>[0]; will be necessary