root/misc/syntax/tree-meta.syntax

/*   */

# TREE-META (both source and object code) Syntax Highlighting Definition
# Version 1.0.0 2026-03-19
# See updates and changelog at https://github.com/jip/syntax-highlighting
#
# TREE-META is a metacompiler developed by D. Andrews and J. Rulifson in
# the 1967, see:
# Andrews, D. I., Rulifson, J. F. (1967). Tree Meta (Working Draft):
# A Meta Compiler for the SDS 940. Stanford Research Institute, Menlo
# Park, CA. Engelbart Collection, Stanford University Archive.
#
# This file is part of GNU Midnight Commander
# https://midnight-commander.org/
#
# SPDX-FileCopyrightText: 2026 Igor Zhuravlov <zhuravlov.ip@ya.ru>
# SPDX-License-Identifier: GPL-3.0-or-later
 
caseinsensitive
 
# for the default (lightgray on blue)
define _alerthi lightgray red
define _alertmi gray yellow
define _alertlo gray cyan
define _asm     cyan
define _assign  white
define _comb    yellow
define _comment brown
define _func    brightred
define _id      lightgray
define _lbl     white
define _num     brightgreen
define _oper    yellow
define _paren   yellow
define _sep     brightmagenta
define _src     cyan
define _str     brightcyan
 
context default
    # object code
    keyword whole ADD _asm
    keyword whole AND _asm
    keyword whole BF _asm
    keyword whole BRARG _asm
    keyword whole BR _asm
    keyword whole BT _asm
    keyword whole CALL _asm
    keyword whole CBTP _asm
    keyword whole CELL _asm
    keyword whole CGER _asm
    keyword whole CHASE _asm
    keyword whole CHRCODE _asm
    keyword whole CHR _asm
    keyword whole CKBR _asm
    keyword whole CKCHR _asm
    keyword whole CKDIG _asm
    keyword whole CKHEX _asm
    keyword whole CKID _asm
    keyword whole CKLAB _asm
    keyword whole CKLET _asm
    keyword whole CKNDNAM _asm
    keyword whole CKNUM _asm
    keyword whole CKOCT _asm
    keyword whole CKSR _asm
    keyword whole CKTXT _asm
    keyword whole CLABS _asm
    keyword whole CMPEQ _asm
    keyword whole CMPL _asm
    keyword whole CMPNEQ _asm
    keyword whole CMPSGET _asm
    keyword whole CMPSGT _asm
    keyword whole CMPSLET _asm
    keyword whole CMPSLT _asm
    keyword whole CMPUGET _asm
    keyword whole CMPUGT _asm
    keyword whole CMPULET _asm
    keyword whole CMPULT _asm
    keyword whole CNTCK _asm
    keyword whole DIG _asm
    keyword whole DUMP _asm
    keyword whole EOR _asm
    keyword whole ERCHK _asm
    keyword whole ERSTR _asm
    keyword whole FUNC _asm
    keyword whole GNLB _asm
    keyword whole HEX _asm
    keyword whole ID _asm
    keyword whole LBARG _asm
    keyword whole LET _asm
    keyword whole LNEG _asm
    keyword whole LOADI _asm
    keyword whole LOAD _asm
    keyword whole LSH _asm
    keyword whole MOVTO _asm
    keyword whole MUL _asm
    keyword whole NDLBL _asm
    keyword whole NDMK _asm
    keyword whole NEG _asm
    keyword whole NUM _asm
    keyword whole NXTBR _asm
    keyword whole OCT _asm
    keyword whole OER _asm
    keyword whole ONL _asm
    keyword whole OR _asm
    keyword whole OUTCH _asm
    keyword whole OUTCL _asm
    keyword whole OUTRE _asm
    keyword whole OUTSR _asm
    keyword whole RC _asm
    keyword whole RSTBR _asm
    keyword whole RSTRP _asm
    keyword whole R _asm
    keyword whole SAVEP _asm
    keyword whole SBTP _asm
    keyword whole SDIV _asm
    keyword whole SET _asm
    keyword whole SMOD _asm
    keyword whole SRARG _asm
    keyword whole SRCHECK _asm
    keyword whole SRINIT _asm
    keyword whole SRP _asm
    keyword whole SRSH _asm
    keyword whole SR _asm
    keyword whole STORE _asm
    keyword whole SUB _asm
    keyword whole TST _asm
    keyword whole UDIV _asm
    keyword whole UMOD _asm
    keyword whole URSH _asm
    # - label
    keyword whole linestart %\{abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ\}\[abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_\]: _lbl
    keyword whole linestart \{abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ\}\[abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_\]: _lbl
    # source
    # - keywords
    wholechars abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789.
    keyword whole .CHR _src
    keyword whole .DELIM _src
    keyword whole .DIG _src
    keyword whole .EMPTY _src
    keyword whole .END _src
    keyword whole .HEX _src
    keyword whole .ID _src
    keyword whole .LET _src
    keyword whole .LIST _src
    keyword whole .META _src
    keyword whole .NUM _src
    keyword whole .OCT _src
    keyword whole .SR _src
    wholechars abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789
    # - functions
    keyword whole CLEAR _func
    keyword whole CODE _func
    keyword whole CONV _func
    keyword whole ENTER _func
    keyword whole LEN _func
    keyword whole LOOK _func
    keyword whole OUTC _func
    keyword whole OUTL _func
    keyword whole OUTS _func
    keyword whole OUT _func
    keyword whole POP _func
    keyword whole PUSH _func
    keyword whole XCONV _func
    # - identifier
    keyword whole \{abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ\}\[abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_\] _id
    # - natural decimal integer numbers
    keyword whole 0 _num
    keyword whole \{123456789_\}\[0123456789_\] _num
    # - label
    keyword whole #\{1234\} _src
    # - assignment
    keyword := _assign
    keyword => _assign
    keyword = _assign
    # - operators
    keyword %% _oper
    keyword // _oper
    keyword <- _oper
    keyword << _oper
    keyword >>> _oper
    keyword >> _oper
    keyword <= _oper
    keyword >= _oper
    keyword \{!#$%&\*\+-.<=>?@^~\} _oper
    # - alternation
    keyword / _comb
    keyword | _comb
    # - parentheses
    keyword ( _paren
    keyword ) _paren
    keyword [ _paren
    keyword ] _paren
    # - separators,terminator
    keyword \{,:;\} _sep
 
# strings
 
context ' ' _str
 
context " " _str
 
# comments
 
context £ £ _comment
    keyword whole BUG        _alerthi
    keyword whole DEPRECATED _alertmi
    keyword whole FIXME      _alerthi
    keyword whole NOTE       _alertlo
    keyword whole TEST       _alertlo
    keyword whole TODO       _alertmi
    keyword whole WARN       _alertmi
    spellcheck

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