1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
|
# -*- coding: utf-8 -*-
"""
pygments.lexers.qbasic
~~~~~~~~~~~~~~~~~~~~~~
Simple lexer for Microsoft QBasic source code.
:copyright: Copyright 2006-2014 by the Pygments team, see AUTHORS.
:license: BSD, see LICENSE for details.
"""
import re
from pygments.lexer import RegexLexer, include, bygroups
from pygments.token import Text, Name, Comment, String, Keyword, Punctuation, \
Number, Operator
__all__ = ['QBasicLexer']
class QBasicLexer(RegexLexer):
"""
For
`QBasic <http://en.wikipedia.org/wiki/QBasic>`_
source code.
"""
name = 'QBasic'
aliases = ['qbasic', 'basic']
filenames = ['*.BAS', '*.bas']
mimetypes = ['text/basic']
declarations = ['DATA', 'LET']
functions = [
'ABS', 'ASC', 'ATN', 'CDBL', 'CHR$', 'CINT', 'CLNG',
'COMMAND$', 'COS', 'CSNG', 'CSRLIN', 'CVD', 'CVDMBF', 'CVI',
'CVL', 'CVS', 'CVSMBF', 'DATE$', 'ENVIRON$', 'EOF', 'ERDEV',
'ERDEV$', 'ERL', 'ERR', 'EXP', 'FILEATTR', 'FIX', 'FRE',
'FREEFILE', 'HEX$', 'INKEY$', 'INP', 'INPUT$', 'INSTR', 'INT',
'IOCTL$', 'LBOUND', 'LCASE$', 'LEFT$', 'LEN', 'LOC', 'LOF',
'LOG', 'LPOS', 'LTRIM$', 'MID$', 'MKD$', 'MKDMBF$', 'MKI$',
'MKL$', 'MKS$', 'MKSMBF$', 'OCT$', 'PEEK', 'PEN', 'PLAY',
'PMAP', 'POINT', 'POS', 'RIGHT$', 'RND', 'RTRIM$', 'SADD',
'SCREEN', 'SEEK', 'SETMEM', 'SGN', 'SIN', 'SPACE$', 'SPC',
'SQR', 'STICK', 'STR$', 'STRIG', 'STRING$', 'TAB', 'TAN',
'TIME$', 'TIMER', 'UBOUND', 'UCASE$', 'VAL', 'VARPTR',
'VARPTR$', 'VARSEG'
]
metacommands = ['$DYNAMIC', '$INCLUDE', '$STATIC']
operators = ['AND', 'EQV', 'IMP', 'NOT', 'OR', 'XOR']
statements = [
'BEEP', 'BLOAD', 'BSAVE', 'CALL', 'CALL ABSOLUTE',
'CALL INTERRUPT', 'CALLS', 'CHAIN', 'CHDIR', 'CIRCLE', 'CLEAR',
'CLOSE', 'CLS', 'COLOR', 'COM', 'COMMON', 'CONST', 'DATA',
'DATE$', 'DECLARE', 'DEF FN', 'DEF SEG', 'DEFDBL', 'DEFINT',
'DEFLNG', 'DEFSNG', 'DEFSTR', 'DEF', 'DIM', 'DO', 'LOOP',
'DRAW', 'END', 'ENVIRON', 'ERASE', 'ERROR', 'EXIT', 'FIELD',
'FILES', 'FOR', 'NEXT', 'FUNCTION', 'GET', 'GOSUB', 'GOTO',
'IF', 'THEN', 'INPUT', 'INPUT #', 'IOCTL', 'KEY', 'KEY',
'KILL', 'LET', 'LINE', 'LINE INPUT', 'LINE INPUT #', 'LOCATE',
'LOCK', 'UNLOCK', 'LPRINT', 'LSET', 'MID$', 'MKDIR', 'NAME',
'ON COM', 'ON ERROR', 'ON KEY', 'ON PEN', 'ON PLAY',
'ON STRIG', 'ON TIMER', 'ON UEVENT', 'ON', 'OPEN', 'OPEN COM',
'OPTION BASE', 'OUT', 'PAINT', 'PALETTE', 'PCOPY', 'PEN',
'PLAY', 'POKE', 'PRESET', 'PRINT', 'PRINT #', 'PRINT USING',
'PSET', 'PUT', 'PUT', 'RANDOMIZE', 'READ', 'REDIM', 'REM',
'RESET', 'RESTORE', 'RESUME', 'RETURN', 'RMDIR', 'RSET', 'RUN',
'SCREEN', 'SEEK', 'SELECT CASE', 'SHARED', 'SHELL', 'SLEEP',
'SOUND', 'STATIC', 'STOP', 'STRIG', 'SUB', 'SWAP', 'SYSTEM',
'TIME$', 'TIMER', 'TROFF', 'TRON', 'TYPE', 'UEVENT', 'UNLOCK',
'VIEW', 'WAIT', 'WHILE', 'WEND', 'WIDTH', 'WINDOW', 'WRITE'
]
keywords = [
'ACCESS', 'ALIAS', 'ANY', 'APPEND', 'AS', 'BASE', 'BINARY',
'BYVAL', 'CASE', 'CDECL', 'DOUBLE', 'ELSE', 'ELSEIF', 'ENDIF',
'INTEGER', 'IS', 'LIST', 'LOCAL', 'LONG', 'LOOP', 'MOD',
'NEXT', 'OFF', 'ON', 'OUTPUT', 'RANDOM', 'SIGNAL', 'SINGLE',
'STEP', 'STRING', 'THEN', 'TO', 'UNTIL', 'USING', 'WEND'
]
tokens = {
'root': [
(r'\n+', Text),
(r'\s+', Text.Whitespace),
(r'^(\s*)(\d*)(\s*)(REM .*)$',
bygroups(Text.Whitespace, Name.Label, Text.Whitespace,
Comment.Single)),
(r'^(\s*)(\d+)(\s*)',
bygroups(Text.Whitespace, Name.Label, Text.Whitespace)),
(r'(?=[\s]*)(\w+)(?=[\s]*=)', Name.Variable.Global),
(r'(?=[^"]*)\'.*$', Comment.Single),
(r'"[^\n\"]*"', String.Double),
(r'(END)(\s+)(FUNCTION|IF|SELECT|SUB)',
bygroups(Keyword.Reserved, Text.Whitespace, Keyword.Reserved)),
(r'(DECLARE)(\s+)([A-Z]+)(\s+)(\S+)',
bygroups(Keyword.Declaration, Text.Whitespace, Name.Variable,
Text.Whitespace, Name)),
(r'(DIM)(\s+)(SHARED)(\s+)([^\s\(]+)',
bygroups(Keyword.Declaration, Text.Whitespace, Name.Variable,
Text.Whitespace, Name.Variable.Global)),
(r'(DIM)(\s+)([^\s\(]+)',
bygroups(Keyword.Declaration, Text.Whitespace, Name.Variable.Global)),
(r'^(\s*)([a-zA-Z_]+)(\s*)(\=)',
bygroups(Text.Whitespace, Name.Variable.Global, Text.Whitespace,
Operator)),
(r'(GOTO|GOSUB)(\s+)(\w+\:?)',
bygroups(Keyword.Reserved, Text.Whitespace, Name.Label)),
(r'(SUB)(\s+)(\w+\:?)',
bygroups(Keyword.Reserved, Text.Whitespace, Name.Label)),
include('declarations'),
include('functions'),
include('metacommands'),
include('operators'),
include('statements'),
include('keywords'),
(r'[a-zA-Z_]\w*[\$@#&!]', Name.Variable.Global),
(r'[a-zA-Z_]\w*\:', Name.Label),
(r'\-?\d*\.\d+[@|#]?', Number.Float),
(r'\-?\d+[@|#]', Number.Float),
(r'\-?\d+#?', Number.Integer.Long),
(r'\-?\d+#?', Number.Integer),
(r'!=|==|:=|\.=|<<|>>|[-~+/\\*%=<>&^|?:!.]', Operator),
(r'[\[\]{}(),;]', Punctuation),
(r'[\w]+', Name.Variable.Global),
],
# can't use regular \b because of X$()
'declarations': [
(r'\b(%s)(?=\(|\b)' % '|'.join(map(re.escape, declarations)),
Keyword.Declaration),
],
'functions': [
(r'\b(%s)(?=\(|\b)' % '|'.join(map(re.escape, functions)),
Keyword.Reserved),
],
'metacommands': [
(r'\b(%s)(?=\(|\b)' % '|'.join(map(re.escape, metacommands)),
Keyword.Constant),
],
'operators': [
(r'\b(%s)(?=\(|\b)' % '|'.join(map(re.escape, operators)), Operator.Word),
],
'statements': [
(r'\b(%s)\b' % '|'.join(map(re.escape, statements)),
Keyword.Reserved),
],
'keywords': [
(r'\b(%s)\b' % '|'.join(keywords), Keyword),
],
}
def analyse_text(text):
return 0.2
|
