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# -*- coding: utf-8 -*-
"""
pygments.lexers.eloquence
~~~~~~~~~~~~~~~~~~~
Lexers for Eloquence.
:copyright: Copyright 2006-2017 by the Pygments team, see AUTHORS.
:license: BSD, see LICENSE for details.
"""
from pygments.lexer import RegexLexer, bygroups, include, words, default
from pygments.token import *
__all__ = ['EloquenceLexer']
class EloquenceLexer(RegexLexer):
"""
For `Eloquence <http://eloquence.marxmeier.com>`_ source code.
Contributed by Robert Andersson <https://github.com/kemichal>,
<https://bitbucket.org/kemichal>.
"""
name = 'Eloquence'
aliases = ['eloquence', 'eloq']
filenames = ['*.eq']
keywords = (
'DESCRIPTION', 'IN DATA SET', 'NO OPERATOR', 'OPTION BASE',
'TRANSPARENT', 'BACKGROUND', 'DBROLLBACK', 'DUMP STACK', 'EXCLUSIVE',
'POPUP BOX', 'PREDICATE', 'RANDOMIZE', 'REVISION$', 'DBCOMMIT',
'DBDELETE', 'DBUNLOCK', 'DBUPDATE', 'LASTLINE', 'MAPPNTR$', 'READONLY',
'STANDARD', 'WORKFILE', 'CHANGES', 'COMMAND', 'DBBEGIN', 'DBCLOSE',
'ERRMSG$', 'EXTENDS', 'FCREATE', 'GETENV$', 'LDSPEC$', 'MAPVOL$',
'PACKFMT', 'PRINTER', 'RELEASE', 'REQUEST', 'RESTORE', 'SUBEXIT',
'TRAILER', 'TYPEOF$', 'XASSIGN', 'XUNPACK', 'ACCEPT', 'APPEND',
'ASSIGN', 'BINCMP', 'BINIOR', 'CREATE', 'CURKEY', 'CURSOR', 'DBFIND',
'DBINFO', 'DBLOCK', 'DBOPEN', 'DEFINE', 'DETAIL', 'DROUND', 'ENABLE',
'EXPORT', 'HEADER', 'LENGTH', 'LINPUT', 'NUMREC', 'PROUND', 'REMOTE',
'REPEAT', 'REPORT', 'RETURN', 'RIGHT$', 'ROTATE', 'SELECT', 'SIGNAL',
'STDERR', 'STDOUT', 'STRUCT', 'SYSID$', 'SYSTEM', 'TASKID', 'THREAD',
'TOTALS', 'UNPACK', 'UPDATE', 'XPURGE', 'BEGIN', 'BREAK', 'CLOCK',
'DATE$', 'DBASE', 'DBGET', 'DBPUT', 'ERRM$', 'ERROR', 'FIXED', 'FRACT',
'GRAND', 'IMAGE', 'LABEL', 'LDISP', 'LINES', 'LISTS', 'MERGE', 'PAUSE',
'PRINT', 'PURGE', 'REDIM', 'SHIFT', 'SLEEP', 'TIME$', 'TOTAL', 'TRIM$',
'UNTIL', 'USING', 'USRID', 'WFLEN', 'WHILE', 'WIDTH', 'XPACK', 'BEEP',
'CALL', 'CASE', 'CHR$', 'DATA', 'DISP', 'DRAW', 'EDIT', 'ELSE', 'ERRL',
'ERRN', 'EXIT', 'FIND', 'FREE', 'FROM', 'GRAD', 'HOLE', 'LINE', 'LIST',
'LOAD', 'LOOP', 'LWC$', 'MD5$', 'NEXT', 'OTHR', 'PACK', 'PAGE', 'PNTR',
'PPID', 'READ', 'RPT$', 'SCAN', 'SIZE', 'SORT', 'STEP', 'STOP', 'SYNC',
'THEN', 'THIS', 'TYPE', 'UPC$', 'VAL$', 'WAIT', 'WHEN', 'WITH', 'YPOS',
'ABS', 'ACS', 'ALL', 'ASN', 'ATN', 'COL', 'CON', 'COS', 'DEG', 'DEL',
'DIV', 'DLG', 'DLL', 'END', 'EXP', 'FOR', 'GET', 'INT', 'KEY', 'LEN',
'LET', 'LEX', 'LGT', 'LIN', 'LOG', 'MAT', 'MAX', 'MIN', 'MOD', 'NEW',
'NUM', 'OFF', 'PID', 'POS', 'RAD', 'RND', 'ROW', 'SET', 'SGN', 'SIN',
'SKP', 'SQR', 'SUB', 'TAN', 'USE', 'VAL', 'ZER', 'AS', 'BY', 'DO',
'IF', 'IS', 'ON', 'PI', 'TO',
)
tokens = {
'root': [
include('define_function'),
include('define_subroutine'),
include('common'),
],
'define_function': [
# Class function member
(r'(DEF FN)([A-Z][a-z0-9_]*)(:)([A-Z][a-z0-9_]*\${0,1})',
bygroups(Keyword, Keyword.Type, Operator, Name.Function),
'function'),
# Function
(r'(DEF FN)([A-Z][a-z0-9_]*\${0,1})',
bygroups(Keyword, Name.Function), 'function'),
],
'define_single_line_function': [
# Single line function definition. Must contain equals sign
(r'(DEF FN)([A-Z][a-z0-9]*\${0,1})(?=.*=)',
bygroups(Keyword, Name.Function)),
],
'define_subroutine': [
# Class subroutine member
(r'(SUB )([A-Z][a-z0-9_]*)(:)([A-Z][a-z0-9_]*\${0,1})',
bygroups(Keyword, Keyword.Type, Operator, Name.Function),
'subroutine'),
# Use negative look-behind to avoid matches with "DEL SUB" and
# "LOAD SUB"
(r'(?<!DEL )(?<!LOAD )(SUB )([A-Z][a-z0-9_]*\${0,1})',
bygroups(Keyword, Name.Function), 'subroutine'),
],
'function': [
(r'FNEND', Keyword, '#pop'),
include('common'),
],
'subroutine': [
(r'SUBEND', Keyword, '#pop'),
include('common'),
],
'common': [
include('whitespace'),
include('comment'),
include('define_single_line_function'),
include('call_function'),
include('call_subroutine'),
include('data'),
include('declaration'),
include('labels'),
include('keywords'),
include('string'),
include('number'),
include('operator'),
include('identifier'),
# REM Comment, low priority
(r'REM.*$', Comment),
],
'data': [
# The DATA keyword can be followed by a list of numbers, quoted
# strings, unquoted strings or a mix
(r'(DATA )', Keyword, 'data_list'),
],
'call_function': [
# Call a class member function
(r'(FNTHIS)(\.)([A-Z][a-z0-9_]*\${0,1})',
bygroups(Keyword, Operator, Name.Function)),
# Call a function
(r'(FN)([A-Z][a-z0-9_]*\${0,1})',
bygroups(Keyword, Name.Function)),
],
'call_subroutine': [
# Call a class member subroutine. The THIS keyword is optional
(r'(CALL (?:THIS){0,1}\.)([A-Z][a-z0-9_]*)',
bygroups(Keyword, Name.Function)),
# Call a subroutine, can be a subroutine defined in a DLL.
(r'(CALL DLL |LOAD DLL |CALL )([A-Z][a-z0-9_]*)',
bygroups(Keyword, Name.Function)),
],
'data_list': [
(r'\n', Whitespace, '#pop'),
(r',', Operator),
include('string'),
include('number'),
(r'[^,\n]+', String),
],
'comment': [
(r'!.*$', Comment),
],
'keywords': [
(words(keywords, prefix=r'\b'), Keyword)
],
'labels': [
# Label jumps can exists after GOTO, THEN or GOSUB. The label(s)
# must be the last thing on the line, except for a comment
(r'(GOTO |THEN |GOSUB )([A-Z][a-z0-9_]*)(?=$|,| *!)',
bygroups(Keyword, Name.Label), 'label_list'),
# Label definition, must be located at the start of the line and
# end with a colon
(r'^[A-Z][a-z0-9_]*(?=:)', Name.Label),
(r'(USING REMOTE LISTS |USING )([A-Z][a-z0-9_]*)',
bygroups(Keyword, Name.Label)),
],
'label_list': [
(r'(,)([A-Z][a-z0-9_]*)', bygroups(Operator, Name.Label)),
default('#pop'),
],
'whitespace': [
(r'\s+', Text.Whitespace),
],
'string': [
('"', String, 'string_end'),
],
'string_end': [
# Consume until quotes. Eloquence doesn't have escaped quotes (\")
# so no need to worry about that.
('[^"]+', String),
('"', String, '#pop'),
],
'number': [
# Numbers like 1, 1.1 or 1E6
(r'\d+(\.\d+){0,1}(E\d+){0,1}', Number),
],
'operator': [
(words(('+', '-', '/', '*', '=', '[', ']', ';', ',', '>', '<', '(',
')', '&', '.', ':', '^')), Operator),
(words(('BINAND', 'NOT', 'OR', 'AND', 'XOR', 'EXOR')),
Operator.Word),
],
'identifier': [
# Identifiers like My_string1$. We do a negative look-ahead to not
# accidentally match an unknown keyword
(r'[A-Z][a-z0-9_]*(?![A-Z])\${0,1}', Keyword.Type),
# File handle
(r'#', Keyword),
],
'declaration': [
(words(('COM', 'DIM', 'INTEGER', 'DINTEGER', 'REAL', 'FLOAT',
'SHORT'), prefix=r'\b', suffix=r'\b'),
Keyword.Declaration)
]
}
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