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ascii_listing = """\
10 PRINT "A STRING"
20 ' ONLY A COMMENT
30 A$="ANOTHER STRING" ' INLINE COMMENT
40 REM COMMENT AND NEXT LINE IS CODE ONLY:
50 B=3
60 PRINT "STRING WIHOUT CLOSE!
70 GOTO 10 : REM COMMENT AS SECOND STATEMENT
"""

regex = re.compile(
    r"""
        ^
        (?P<line_number>\d+)\s?
        (
                (
                    (?P<pre_comment>[^"\n]*)
                    (?P<comment> ('|REM).* )
                )?
            |
                (
                    (?P<pre_string>[^"\n]*)
                    (?P<string>"[^"\n]*"?)
                    (?P<post_string>[^"\n]*)
                )?
            |
            (?P<code>.*)
        )$
    """,
    re.VERBOSE | re.MULTILINE
)


def debug_match(match):
    print "Line: >>>%s<<<\n" % match.group(0)
    match_groupdict = match.groupdict()
    for name, text in match_groupdict.items():
        if text is not None:
            print "%15s: %r" % (name, text)
    print "-" * 79

print "-" * 79
regex.sub(debug_match, ascii_listing)

Code: Alles auswählen

-------------------------------------------------------------------------------
Line: >>>10 PRINT "A STRING"<<<

    line_number: '10'
     pre_string: 'PRINT '
         string: '"A STRING"'
    post_string: ''
-------------------------------------------------------------------------------
Line: >>>20 ' ONLY A COMMENT<<<

        comment: "' ONLY A COMMENT"
    line_number: '20'
    pre_comment: ''
-------------------------------------------------------------------------------
Line: >>>30 A$="ANOTHER STRING" ' INLINE COMMENT<<<

    line_number: '30'
     pre_string: 'A$='
         string: '"ANOTHER STRING"'
    post_string: " ' INLINE COMMENT"
-------------------------------------------------------------------------------
Line: >>>40 REM COMMENT AND NEXT LINE IS CODE ONLY:<<<

        comment: 'REM COMMENT AND NEXT LINE IS CODE ONLY:'
    line_number: '40'
    pre_comment: ''
-------------------------------------------------------------------------------
Line: >>>50 B=3<<<

    line_number: '50'
           code: 'B=3'
-------------------------------------------------------------------------------
Line: >>>60 PRINT "STRING WIHOUT CLOSE!<<<

    line_number: '60'
     pre_string: 'PRINT '
         string: '"STRING WIHOUT CLOSE!'
    post_string: ''
-------------------------------------------------------------------------------
Line: >>>70 GOTO 10 : REM COMMENT AS SECOND STATEMENT<<<

        comment: 'REM COMMENT AS SECOND STATEMENT'
    line_number: '70'
    pre_comment: 'GOTO 10 : '
-------------------------------------------------------------------------------

Code: Alles auswählen

10 PRINT "GO":DATA 00
20 READ HB$
30 IF HB$="END" THEN 130
40 PRINT HB$;
50 GOTO 20
60 ' FOO
70 DATA XX,DATA YY
80 DATA "JO"
90 DATA 4F,'REM?
100 PRINT "X":DATA 5B
110 ' BAR
120 DATA 5F,END
130 PRINT:PRINT "BYE"

Code: Alles auswählen

10 DATA A,B,C:PRINT"HALLO"
RUN
HALLO

READY.

Code: Alles auswählen

10 DATA A,B,C:PRINT"HALLO"
20 FOR I=1 TO 3
25 READ D$
30 PRINT I;D$
40 NEXT