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✏️ Editing: unicon.py

"""
    pygments.lexers.unicon
    ~~~~~~~~~~~~~~~~~~~~~~

Lexers for the Icon and Unicon languages, including ucode VM.

:copyright: Copyright 2006-present by the Pygments team, see AUTHORS.
    :license: BSD, see LICENSE for details.
"""

import re

from pygments.lexer import RegexLexer, include, bygroups, words, using, this
from pygments.token import Text, Comment, Operator, Keyword, Name, String, \
    Number, Punctuation

__all__ = ['IconLexer', 'UcodeLexer', 'UniconLexer']

class UniconLexer(RegexLexer):
    """
    For Unicon source code.
    """

name = 'Unicon'
    aliases = ['unicon']
    filenames = ['*.icn']
    mimetypes = ['text/unicon']
    url = 'https://www.unicon.org'
    version_added = '2.4'

flags = re.MULTILINE

tokens = {
        'root': [
            (r'[^\S\n]+', Text),
            (r'#.*?\n', Comment.Single),
            (r'[^\S\n]+', Text),
            (r'class|method|procedure', Keyword.Declaration, 'subprogram'),
            (r'(record)(\s+)(\w+)',
             bygroups(Keyword.Declaration, Text, Keyword.Type), 'type_def'),
            (r'(#line|\$C|\$Cend|\$define|\$else|\$endif|\$error|\$ifdef|'
             r'\$ifndef|\$include|\$line|\$undef)\b', Keyword.PreProc),
            (r'(&null|&fail)\b', Keyword.Constant),
            (r'&allocated|&ascii|&clock|&collections|&column|&col|&control|'
             r'&cset|&current|&dateline|&date|&digits|&dump|'
             r'&errno|&errornumber|&errortext|&errorvalue|&error|&errout|'
             r'&eventcode|&eventvalue|&eventsource|&e|'
             r'&features|&file|&host|&input|&interval|&lcase|&letters|'
             r'&level|&line|&ldrag|&lpress|&lrelease|'
             r'&main|&mdrag|&meta|&mpress|&mrelease|&now|&output|'
             r'&phi|&pick|&pi|&pos|&progname|'
             r'&random|&rdrag|&regions|&resize|&row|&rpress|&rrelease|'
             r'&shift|&source|&storage|&subject|'
             r'&time|&trace|&ucase|&version|'
             r'&window|&x|&y', Keyword.Reserved),
            (r'(by|of|not|to)\b', Keyword.Reserved),
            (r'(global|local|static|abstract)\b', Keyword.Reserved),
            (r'package|link|import', Keyword.Declaration),
            (words((
                'break', 'case', 'create', 'critical', 'default', 'end', 'all',
                'do', 'else', 'every', 'fail', 'if', 'import', 'initial',
                'initially', 'invocable', 'next',
                'repeat', 'return', 'suspend',
                'then', 'thread', 'until', 'while'), prefix=r'\b', suffix=r'\b'),
             Keyword.Reserved),
            (words((
                'Abort', 'abs', 'acos', 'Active', 'Alert', 'any', 'Any', 'Arb',
                'Arbno', 'args', 'array', 'asin', 'atan', 'atanh', 'Attrib',
                'Bal', 'bal', 'Bg', 'Break', 'Breakx',
                'callout', 'center', 'char', 'chdir', 'chmod', 'chown', 'chroot',
                'classname', 'Clip', 'Clone', 'close', 'cofail', 'collect',
                'Color', 'ColorValue', 'condvar', 'constructor', 'copy',
                'CopyArea', 'cos', 'Couple', 'crypt', 'cset', 'ctime',
                'dbcolumns', 'dbdriver', 'dbkeys', 'dblimits', 'dbproduct',
                'dbtables', 'delay', 'delete', 'detab', 'display', 'DrawArc',
                'DrawCircle', 'DrawCube', 'DrawCurve', 'DrawCylinder',
                'DrawDisk', 'DrawImage', 'DrawLine', 'DrawPoint', 'DrawPolygon',
                'DrawRectangle', 'DrawSegment', 'DrawSphere', 'DrawString',
                'DrawTorus', 'dtor',
                'entab', 'EraseArea', 'errorclear', 'Event', 'eventmask',
                'EvGet', 'EvSend', 'exec', 'exit', 'exp', 'Eye',
                'Fail', 'fcntl', 'fdup', 'Fence', 'fetch', 'Fg', 'fieldnames',
                'filepair', 'FillArc', 'FillCircle', 'FillPolygon',
                'FillRectangle', 'find', 'flock', 'flush', 'Font', 'fork',
                'FreeColor', 'FreeSpace', 'function',
                'get', 'getch', 'getche', 'getegid', 'getenv', 'geteuid',
                'getgid', 'getgr', 'gethost', 'getpgrp', 'getpid', 'getppid',
                'getpw', 'getrusage', 'getserv', 'GetSpace', 'gettimeofday',
                'getuid', 'globalnames', 'GotoRC', 'GotoXY', 'gtime', 'hardlink',
                'iand', 'icom', 'IdentityMatrix', 'image', 'InPort', 'insert',
                'Int86', 'integer', 'ioctl', 'ior', 'ishift', 'istate', 'ixor',
                'kbhit', 'key', 'keyword', 'kill',
                'left', 'Len', 'list', 'load', 'loadfunc', 'localnames',
                'lock', 'log', 'Lower', 'lstat',
                'many', 'map', 'match', 'MatrixMode', 'max', 'member',
                'membernames', 'methodnames', 'methods', 'min', 'mkdir', 'move',
                'MultMatrix', 'mutex',
                'name', 'NewColor', 'Normals', 'NotAny', 'numeric',
                'open', 'opencl', 'oprec', 'ord', 'OutPort',
                'PaletteChars', 'PaletteColor', 'PaletteKey', 'paramnames',
                'parent', 'Pattern', 'Peek', 'Pending', 'pipe', 'Pixel',
                'PlayAudio', 'Poke', 'pop', 'PopMatrix', 'Pos', 'pos',
                'proc', 'pull', 'push', 'PushMatrix', 'PushRotate', 'PushScale',
                'PushTranslate', 'put',
                'QueryPointer',
                'Raise', 'read', 'ReadImage', 'readlink', 'reads', 'ready',
                'real', 'receive', 'Refresh', 'Rem', 'remove', 'rename',
                'repl', 'reverse', 'right', 'rmdir', 'Rotate', 'Rpos',
                'Rtab', 'rtod', 'runerr',
                'save', 'Scale', 'seek', 'select', 'send', 'seq',
                'serial', 'set', 'setenv', 'setgid', 'setgrent',
                'sethostent', 'setpgrp', 'setpwent', 'setservent',
                'setuid', 'signal', 'sin', 'sort', 'sortf', 'Span',
                'spawn', 'sql', 'sqrt', 'stat', 'staticnames', 'stop',
                'StopAudio', 'string', 'structure', 'Succeed', 'Swi',
                'symlink', 'sys_errstr', 'system', 'syswrite',
                'Tab', 'tab', 'table', 'tan',
                'Texcoord', 'Texture', 'TextWidth', 'Translate',
                'trap', 'trim', 'truncate', 'trylock', 'type',
                'umask', 'Uncouple', 'unlock', 'upto', 'utime',
                'variable', 'VAttrib',
                'wait', 'WAttrib', 'WDefault', 'WFlush', 'where',
                'WinAssociate', 'WinButton', 'WinColorDialog', 'WindowContents',
                'WinEditRegion', 'WinFontDialog', 'WinMenuBar', 'WinOpenDialog',
                'WinPlayMedia', 'WinSaveDialog', 'WinScrollBar', 'WinSelectDialog',
                'write', 'WriteImage', 'writes', 'WSection',
                'WSync'), prefix=r'\b', suffix=r'\b'),
             Name.Function),
            include('numbers'),
            (r'<@|<<@|>@|>>@|\.>|->|===|~===|\*\*|\+\+|--|\.|~==|~=|<=|>=|==|'
             r'=|<<=|<<|>>=|>>|:=:|:=|->|<->|\+:=|\|', Operator),
            (r'"(?:[^\\"]|\\.)*"', String),
            (r"'(?:[^\\']|\\.)*'", String.Character),
            (r'[*<>+=/&!?@~\\-]', Operator),
            (r'\^', Operator),
            (r'(\w+)(\s*|[(,])', bygroups(Name, using(this))),
            (r"[\[\]]", Punctuation),
            (r"<>|=>|[()|:;,.'`{}%&?]", Punctuation),
            (r'\n+', Text),
        ],
        'numbers': [
            (r'\b([+-]?([2-9]|[12][0-9]|3[0-6])[rR][0-9a-zA-Z]+)\b', Number.Hex),
            (r'[+-]?[0-9]*\.([0-9]*)([Ee][+-]?[0-9]*)?', Number.Float),
            (r'\b([+-]?[0-9]+[KMGTPkmgtp]?)\b', Number.Integer),
        ],
        'subprogram': [
            (r'$', Punctuation, ('#pop', 'formal_part')),
            (r';', Punctuation, '#pop'),
            (r'"[^"]+"|\w+', Name.Function),
            include('root'),
        ],
        'type_def': [
            (r'\(', Punctuation, 'formal_part'),
        ],
        'formal_part': [
            (r'$', Punctuation, '#pop'),
            (r'\w+', Name.Variable),
            (r',', Punctuation),
            (r'(:string|:integer|:real)\b', Keyword.Reserved),
            include('root'),
        ],
    }

class IconLexer(RegexLexer):
    """
    Lexer for Icon.
    """
    name = 'Icon'
    aliases = ['icon']
    filenames = ['*.icon', '*.ICON']
    mimetypes = []
    url = 'https://www2.cs.arizona.edu/icon'
    version_added = '1.6'

flags = re.MULTILINE

tokens = {
        'root': [
            (r'[^\S\n]+', Text),
            (r'#.*?\n', Comment.Single),
            (r'[^\S\n]+', Text),
            (r'class|method|procedure', Keyword.Declaration, 'subprogram'),
            (r'(record)(\s+)(\w+)',
             bygroups(Keyword.Declaration, Text, Keyword.Type), 'type_def'),
            (r'(#line|\$C|\$Cend|\$define|\$else|\$endif|\$error|\$ifdef|'
             r'\$ifndef|\$include|\$line|\$undef)\b', Keyword.PreProc),
            (r'(&null|&fail)\b', Keyword.Constant),
            (r'&allocated|&ascii|&clock|&collections|&column|&col|&control|'
             r'&cset|&current|&dateline|&date|&digits|&dump|'
             r'&errno|&errornumber|&errortext|&errorvalue|&error|&errout|'
             r'&eventcode|&eventvalue|&eventsource|&e|'
             r'&features|&file|&host|&input|&interval|&lcase|&letters|'
             r'&level|&line|&ldrag|&lpress|&lrelease|'
             r'&main|&mdrag|&meta|&mpress|&mrelease|&now|&output|'
             r'&phi|&pick|&pi|&pos|&progname|'
             r'&random|&rdrag|&regions|&resize|&row|&rpress|&rrelease|'
             r'&shift|&source|&storage|&subject|'
             r'&time|&trace|&ucase|&version|'
             r'&window|&x|&y', Keyword.Reserved),
            (r'(by|of|not|to)\b', Keyword.Reserved),
            (r'(global|local|static)\b', Keyword.Reserved),
            (r'link', Keyword.Declaration),
            (words((
                'break', 'case', 'create', 'default', 'end', 'all',
                'do', 'else', 'every', 'fail', 'if', 'initial',
                'invocable', 'next',
                'repeat', 'return', 'suspend',
                'then', 'until', 'while'), prefix=r'\b', suffix=r'\b'),
             Keyword.Reserved),
            (words((
                'abs', 'acos', 'Active', 'Alert', 'any',
                'args', 'array', 'asin', 'atan', 'atanh', 'Attrib',
                'bal', 'Bg',
                'callout', 'center', 'char', 'chdir', 'chmod', 'chown', 'chroot',
                'Clip', 'Clone', 'close', 'cofail', 'collect',
                'Color', 'ColorValue', 'condvar', 'copy',
                'CopyArea', 'cos', 'Couple', 'crypt', 'cset', 'ctime',
                'delay', 'delete', 'detab', 'display', 'DrawArc',
                'DrawCircle', 'DrawCube', 'DrawCurve', 'DrawCylinder',
                'DrawDisk', 'DrawImage', 'DrawLine', 'DrawPoint', 'DrawPolygon',
                'DrawRectangle', 'DrawSegment', 'DrawSphere', 'DrawString',
                'DrawTorus', 'dtor',
                'entab', 'EraseArea', 'errorclear', 'Event', 'eventmask',
                'EvGet', 'EvSend', 'exec', 'exit', 'exp', 'Eye',
                'fcntl', 'fdup', 'fetch', 'Fg', 'fieldnames',
                'FillArc', 'FillCircle', 'FillPolygon',
                'FillRectangle', 'find', 'flock', 'flush', 'Font',
                'FreeColor', 'FreeSpace', 'function',
                'get', 'getch', 'getche', 'getenv',
                'GetSpace', 'gettimeofday',
                'getuid', 'globalnames', 'GotoRC', 'GotoXY', 'gtime', 'hardlink',
                'iand', 'icom', 'IdentityMatrix', 'image', 'InPort', 'insert',
                'Int86', 'integer', 'ioctl', 'ior', 'ishift', 'istate', 'ixor',
                'kbhit', 'key', 'keyword', 'kill',
                'left', 'Len', 'list', 'load', 'loadfunc', 'localnames',
                'lock', 'log', 'Lower', 'lstat',
                'many', 'map', 'match', 'MatrixMode', 'max', 'member',
                'membernames', 'methodnames', 'methods', 'min', 'mkdir', 'move',
                'MultMatrix', 'mutex',
                'name', 'NewColor', 'Normals', 'numeric',
                'open', 'opencl', 'oprec', 'ord', 'OutPort',
                'PaletteChars', 'PaletteColor', 'PaletteKey', 'paramnames',
                'parent', 'Pattern', 'Peek', 'Pending', 'pipe', 'Pixel',
                'Poke', 'pop', 'PopMatrix', 'Pos', 'pos',
                'proc', 'pull', 'push', 'PushMatrix', 'PushRotate', 'PushScale',
                'PushTranslate', 'put',
                'QueryPointer',
                'Raise', 'read', 'ReadImage', 'readlink', 'reads', 'ready',
                'real', 'receive', 'Refresh', 'Rem', 'remove', 'rename',
                'repl', 'reverse', 'right', 'rmdir', 'Rotate', 'Rpos',
                'rtod', 'runerr',
                'save', 'Scale', 'seek', 'select', 'send', 'seq',
                'serial', 'set', 'setenv',
                'setuid', 'signal', 'sin', 'sort', 'sortf',
                'spawn', 'sql', 'sqrt', 'stat', 'staticnames', 'stop',
                'string', 'structure', 'Swi',
                'symlink', 'sys_errstr', 'system', 'syswrite',
                'tab', 'table', 'tan',
                'Texcoord', 'Texture', 'TextWidth', 'Translate',
                'trap', 'trim', 'truncate', 'trylock', 'type',
                'umask', 'Uncouple', 'unlock', 'upto', 'utime',
                'variable',
                'wait', 'WAttrib', 'WDefault', 'WFlush', 'where',
                'WinAssociate', 'WinButton', 'WinColorDialog', 'WindowContents',
                'WinEditRegion', 'WinFontDialog', 'WinMenuBar', 'WinOpenDialog',
                'WinPlayMedia', 'WinSaveDialog', 'WinScrollBar', 'WinSelectDialog',
                'write', 'WriteImage', 'writes', 'WSection',
                'WSync'), prefix=r'\b', suffix=r'\b'),
             Name.Function),
            include('numbers'),
            (r'===|~===|\*\*|\+\+|--|\.|==|~==|<=|>=|=|~=|<<=|<<|>>=|>>|'
             r':=:|:=|<->|<-|\+:=|\|\||\|', Operator),
            (r'"(?:[^\\"]|\\.)*"', String),
            (r"'(?:[^\\']|\\.)*'", String.Character),
            (r'[*<>+=/&!?@~\\-]', Operator),
            (r'(\w+)(\s*|[(,])', bygroups(Name, using(this))),
            (r"[\[\]]", Punctuation),
            (r"<>|=>|[()|:;,.'`{}%\^&?]", Punctuation),
            (r'\n+', Text),
        ],
        'numbers': [
            (r'\b([+-]?([2-9]|[12][0-9]|3[0-6])[rR][0-9a-zA-Z]+)\b', Number.Hex),
            (r'[+-]?[0-9]*\.([0-9]*)([Ee][+-]?[0-9]*)?', Number.Float),
            (r'\b([+-]?[0-9]+[KMGTPkmgtp]?)\b', Number.Integer),
        ],
        'subprogram': [
            (r'$', Punctuation, ('#pop', 'formal_part')),
            (r';', Punctuation, '#pop'),
            (r'"[^"]+"|\w+', Name.Function),
            include('root'),
        ],
        'type_def': [
            (r'\(', Punctuation, 'formal_part'),
        ],
        'formal_part': [
            (r'$', Punctuation, '#pop'),
            (r'\w+', Name.Variable),
            (r',', Punctuation),
            (r'(:string|:integer|:real)\b', Keyword.Reserved),
            include('root'),
        ],
    }

class UcodeLexer(RegexLexer):
    """
    Lexer for Icon ucode files.
    """
    name = 'ucode'
    aliases = ['ucode']
    filenames = ['*.u', '*.u1', '*.u2']
    mimetypes = []
    url = 'http://www.unicon.org'
    version_added = '2.4'

flags = re.MULTILINE

tokens = {
        'root': [
            (r'(#.*\n)', Comment),
            (words((
                'con', 'declend', 'end',
                'global',
                'impl', 'invocable',
                'lab', 'link', 'local',
                'record',
                'uid', 'unions',
                'version'),
                prefix=r'\b', suffix=r'\b'),
             Name.Function),
            (words((
                'colm', 'filen', 'line', 'synt'),
                prefix=r'\b', suffix=r'\b'),
             Comment),
            (words((
                'asgn',
                'bang', 'bscan',
                'cat', 'ccase', 'chfail',
                'coact', 'cofail', 'compl',
                'coret', 'create', 'cset',
                'diff', 'div', 'dup',
                'efail', 'einit', 'end', 'eqv', 'eret',
                'error', 'escan', 'esusp',
                'field',
                'goto',
                'init', 'int', 'inter',
                'invoke',
                'keywd',
                'lconcat', 'lexeq', 'lexge',
                'lexgt', 'lexle', 'lexlt', 'lexne',
                'limit', 'llist', 'lsusp',
                'mark', 'mark0', 'minus', 'mod', 'mult',
                'neg', 'neqv', 'nonnull', 'noop', 'null',
                'number', 'numeq', 'numge', 'numgt',
                'numle', 'numlt', 'numne',
                'pfail', 'plus', 'pnull', 'pop', 'power',
                'pret', 'proc', 'psusp', 'push1', 'pushn1',
                'random', 'rasgn', 'rcv', 'rcvbk', 'real',
                'refresh', 'rswap',
                'sdup', 'sect', 'size', 'snd', 'sndbk',
                'str', 'subsc', 'swap',
                'tabmat', 'tally', 'toby', 'trace',
                'unmark',
                'value', 'var'), prefix=r'\b', suffix=r'\b'),
             Keyword.Declaration),
            (words((
                'any',
                'case',
                'endcase', 'endevery', 'endif',
                'endifelse', 'endrepeat', 'endsuspend',
                'enduntil', 'endwhile', 'every',
                'if', 'ifelse',
                'repeat',
                'suspend',
                'until',
                'while'),
             prefix=r'\b', suffix=r'\b'),
             Name.Constant),
            (r'\d+(\s*|\.$|$)', Number.Integer),
            (r'[+-]?\d*\.\d+(E[-+]?\d+)?', Number.Float),
            (r'[+-]?\d+\.\d*(E[-+]?\d+)?', Number.Float),
            (r"(<>|=>|[()|:;,.'`]|[{}]|[%^]|[&?])", Punctuation),
            (r'\s+\b', Text),
            (r'[\w-]+', Text),
        ],
    }

def analyse_text(text):
        """endsuspend and endrepeat are unique to this language, and
        \\self, /self doesn't seem to get used anywhere else either."""
        result = 0

if 'endsuspend' in text:
            result += 0.1

if 'endrepeat' in text:
            result += 0.1

if ':=' in text:
            result += 0.01

if 'procedure' in text and 'end' in text:
            result += 0.01

# This seems quite unique to unicon -- doesn't appear in any other
        # example source we have (A quick search reveals that \SELF appears in
        # Perl/Raku code)
        if r'\self' in text and r'/self' in text:
            result += 0.5

return result

MR SKB