root/misc/syntax/meta-ii.syntax

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# META II (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
#
# META II is a metacompiler developed by D.V. Schorre in the 1964
# http://doi.acm.org/10.1145/800257.808896
#
# 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 _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
    # - input
    keyword whole TST _asm
    keyword whole ID _asm
    keyword whole NUM _asm
    keyword whole SR _asm
    # - procedures
    keyword whole CLL _asm
    keyword whole R _asm
    # - branch flag
    keyword whole SET _asm
    # - execution flow
    keyword whole BT _asm
    keyword whole BF _asm
    keyword whole BE _asm
    keyword whole B _asm
    # - output recognized information
    keyword whole CL _asm
    keyword whole CI _asm
    # - generate labels
    keyword whole GN1 _asm
    keyword whole GN2 _asm
    # - control the output
    keyword whole LB _asm
    # - output
    keyword whole OUT _asm
    # - pseudo: begin, end
    keyword whole ADR _asm
    keyword whole END _asm
    # - extensions
    keyword whole GN _asm
    keyword whole NL _asm
    keyword whole TB _asm
    keyword whole LMI _asm
    keyword whole LMD _asm
    keyword whole CC _asm
    keyword whole CGE _asm
    keyword whole CLE _asm
    keyword whole CE _asm
    keyword whole LCH _asm
    keyword whole NOT _asm
    keyword whole TFT _asm
    keyword whole TFF _asm
    keyword whole RF _asm
    keyword whole SCN _asm
    # - label
    keyword whole linestart \{abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ\}\[abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_\]\n _lbl
    # source
    # - built-in keywords
    wholechars abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789.
    keyword whole .SYNTAX _src
    keyword whole .END _src
    keyword whole .ID _src
    keyword whole .STRING _src
    keyword whole .NUMBER _src
    keyword whole .LB _src
    keyword whole .OUT _src
    keyword whole .EMPTY _src
    keyword whole .LABEL _src
    # - extensions
    keyword whole .RESERVED _src
    keyword whole .INCLUDE _src
    keyword whole .CON _src
    keyword whole .FILE _src
    keyword whole .NL _src
    keyword whole .TB _src
    keyword whole .LM\+ _src
    keyword whole .LM- _src
    keyword whole .TOKEN _src
    keyword whole .DELTOK _src
    keyword whole .ANY _src
    # - metalinguistic variables
    keyword \*\{abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ\}\[abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_\] _id
    keyword #\{abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ\}\[abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_\] _id
    keyword \{abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ\}\[abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_\] _id
    # - natural decimal integer numbers
    keyword whole 0 _num
    keyword whole \{123456789_\}\[0123456789_\] _num
    # - assignment
    keyword \{:=\} _assign
    # - operators
    keyword \{$:\*#!\} _oper
    # - alternation
    keyword / _comb
    # - parentheses
    keyword ( _paren
    keyword ) _paren
    keyword < _paren
    keyword > _paren
    keyword [ _paren
    keyword ] _paren
    # - terminators
    keyword ., _sep
    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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