diff options
Diffstat (limited to 'pygments/lexers/basic.py')
-rw-r--r-- | pygments/lexers/basic.py | 99 |
1 files changed, 97 insertions, 2 deletions
diff --git a/pygments/lexers/basic.py b/pygments/lexers/basic.py index b0409386..4d957c2b 100644 --- a/pygments/lexers/basic.py +++ b/pygments/lexers/basic.py @@ -18,7 +18,8 @@ from pygments.lexers import _vbscript_builtins __all__ = ['BlitzBasicLexer', 'BlitzMaxLexer', 'MonkeyLexer', 'CbmBasicV2Lexer', - 'QBasicLexer', 'VBScriptLexer'] + 'QBasicLexer', 'VBScriptLexer', 'BBCBasicLexer'] + class BlitzMaxLexer(RegexLexer): @@ -561,4 +562,98 @@ class VBScriptLexer(RegexLexer): (r'"', String.Double, '#pop'), (r'\n', Error, '#pop'), # Unterminated string ], - }
\ No newline at end of file + } + + +class BBCBasicLexer(RegexLexer): + """ + BBC Basic was supplied on the BBC Micro, and later Acorn RISC OS. + It is also used by BBC Basic For Windows. + + .. versionadded:: 2.4???? + """ + base_keywords = ['OTHERWISE', 'AND', 'DIV', 'EOR', 'MOD', 'OR', 'ERROR', + 'LINE', 'OFF', 'STEP', 'SPC', 'TAB', 'ELSE', 'THEN', + 'OPENIN', 'PTR', 'PAGE', 'TIME', 'LOMEM', 'HIMEM', 'ABS', + 'ACS', 'ADVAL', 'ASC', 'ASN', 'ATN', 'BGET', 'COS', 'COUNT', + 'DEG', 'ERL', 'ERR', 'EVAL', 'EXP', 'EXT', 'FALSE', 'FN', + 'GET', 'INKEY', 'INSTR', 'INT', 'LEN', 'LN', 'LOG', 'NOT', + 'OPENUP', 'OPENOUT', 'PI', 'POINT', 'POS', 'RAD', 'RND', + 'SGN', 'SIN', 'SQR', 'TAN', 'TO', 'TRUE', 'USR', 'VAL', + 'VPOS', 'CHR$', 'GET$', 'INKEY$', 'LEFT$', 'MID$', + 'RIGHT$', 'STR$', 'STRING$', 'EOF', 'PTR', 'PAGE', 'TIME', + 'LOMEM', 'HIMEM', 'SOUND', 'BPUT', 'CALL', 'CHAIN', 'CLEAR', + 'CLOSE', 'CLG', 'CLS', 'DATA', 'DEF', 'DIM', 'DRAW', 'END', + 'ENDPROC', 'ENVELOPE', 'FOR', 'GOSUB', 'GOTO', 'GCOL', 'IF', + 'INPUT', 'LET', 'LOCAL', 'MODE', 'MOVE', 'NEXT', 'ON', + 'VDU', 'PLOT', 'PRINT', 'PROC', 'READ', 'REM', 'REPEAT', + 'REPORT', 'RESTORE', 'RETURN', 'RUN', 'STOP', 'COLOUR', + 'TRACE', 'UNTIL', 'WIDTH', 'OSCLI'] + + basic5_keywords = ['WHEN', 'OF', 'ENDCASE', 'ENDIF', 'ENDWHILE', 'CASE', + 'CIRCLE', 'FILL', 'ORIGIN', 'POINT', 'RECTANGLE', 'SWAP', + 'WHILE', 'WAIT', 'MOUSE', 'QUIT', 'SYS', 'INSTALL', + 'LIBRARY', 'TINT', 'ELLIPSE', 'BEATS', 'TEMPO', 'VOICES', + 'VOICE', 'STEREO', 'OVERLAY', 'APPEND', 'AUTO', 'CRUNCH', + 'DELETE', 'EDIT', 'HELP', 'LIST', 'LOAD', 'LVAR', 'NEW', + 'OLD', 'RENUMBER', 'SAVE', 'TEXTLOAD', 'TEXTSAVE', + 'TWIN', 'TWINO', 'INSTALL', 'SUM', 'BEAT'] + + + name = 'BBC Basic' + aliases = ['bbcbasic'] + filenames = ['*.bbc'] + + tokens = { + 'root': [ + (r"[0-9]+", Name.Label), + (r"(\*)([^\n]*)", + bygroups(Keyword.Pseudo, Comment.Special)), + (r"", Whitespace, 'code'), + ], + + 'code': [ + (r"(REM)([^\n]*)", + bygroups(Keyword.Declaration, Comment.Single)), + (r'\n', Whitespace, 'root'), + (r'\s+', Whitespace), + (r':', Comment.Preproc), + + # Some special cases to make functions come out nicer + (r'(DEF)(\s*)(FN|PROC)([A-Za-z_@][A-Za-z0-9_@]*)', + bygroups(Keyword.Declaration, Whitespace, Keyword.Declaration, Name.Function)), + (r'(FN|PROC)([A-Za-z_@][A-Za-z0-9_@]*)', + bygroups(Keyword, Name.Function)), + + (r'(GOTO|GOSUB|THEN|RESTORE)(\s*)(\d+)', + bygroups(Keyword, Whitespace, Name.Label)), + + (r'(TRUE|FALSE)', Keyword.Constant), + (r'(PAGE|LOMEM|HIMEM|TIME|WIDTH|ERL|ERR|REPORT\$|POS|VPOS|VOICES)', Keyword.Pseudo), + + (words(base_keywords), Keyword), + (words(basic5_keywords), Keyword), + + ('"', String.Double, 'string'), + + ('%[01]{1,32}', Number.Bin), + ('&[0-9a-f]{1,8}', Number.Hex), + + (r'[+-]?[0-9]+\.[0-9]*(E[+-]?[0-9]+)?', Number.Float), + (r'[+-]?\.[0-9]+(E[+-]?[0-9]+)?', Number.Float), + (r'[+-]?[0-9]+E[+-]?[0-9]+', Number.Float), + (r'[+-]?\d+', Number.Integer), + + (r'([A-Za-z_@][A-Za-z0-9_@]*[%$]?)', Name.Variable), + (r'([+\-]=|[$!|?+\-*/%^=><();]|>=|<=|<>|<<|>>|>>>|,)', Operator), + ], + 'string': [ + (r'[^"\n]+', String.Double), + (r'"', String.Double, '#pop'), + (r'\n', Error, 'root'), # Unterminated string + ], + } + + def analyse_text(text): + if text.startswith('10REM >') or text.startswith('REM >'): + return 0.9 |