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[QUOTE="Arthur J. O'Dwyer, post: 1712557"]
No, as far as I can tell Dan is correct in this case (depending
on your definition of "mainstream").  Neither Fortran nor COBOL were
*free-form* languages, but they certainly weren't indentation-sensitive.
See the RPG language for another slightly more modern (but much less
"mainstream") example, IIRC.

Fortran was not indentation-sensitive; in fact, one of the most
widespread anecdotes about Fortran is the "DO20I = 1.10" incident,
which hinges on the fact that Fortran didn't recognize anything
special about whitespace *at* *all*!  You could write[1]

C WITH INDENTATION
          DO 50 I=1, 99
              BOTTLS = 100-I
              PRINT 10, BOTTLS
    10        FORMAT(1X, I2, 31H BOTTLE(S) OF BEER ON THE WALL.)
    50    CONTINUE
          STOP
          END

or equally

C WITHOUT ANY INDENTATION
          DO 50 I=1, 99
          BOTTLS = 100-I
          PRINT 10, BOTTLS
    10    FORMAT(1X, I2, 31H BOTTLE(S) OF BEER ON THE WALL.)
    50    CONTINUE
          STOP
          END

The fact that punch cards in the Good Old Days Before I Was
Born(TM) had designated areas in which it was okay to punch holes
representing code, or line numbers, or comments, has nothing to
do with the concept of "indentation."
  See thread
[URL]http://groups.google.com/groups?threadm=c6d30b$so4$1@online.de[/URL]
in comp.lang.misc for some discussion tangentially related to
this topic.  In fact, I'd suggest this whole discussion move
there, if you want to keep arguing about what's "indentation"
and what's not.  Followups set.

-Arthur

[1] - Shamelessly nicked from the 99 Bottles of Beer project
and shortened with a blunt instrument.  No warranties on
correctness.
[/QUOTE]

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