On Thursday 10 July 2008 23:10:58 Stefan Seefeld wrote:
> Jurko Gospodnetić wrote:
> > Hi.
> >> I changed:
> >> use-project boost
> >> C:/Program Files/boost/boost_1_35_0;
> >> To:
> >> use-project boost : "C:/Program Files/boost/boost_1_35_0";
> >
> > In Boost Jam scripts whitespace characters (spaces, tabs, new-lines,
> > etc...) are very imporant. For instance... you must have at least one
> > whitespace character before the trailing semicolon (;).
>
> Out of curiosity (since I have run into similar errors in the past,
> too): why does whitespace matter ?
From: Christopher Seiwald [mailto:seiwald@xxxxxxxxxxxx]
Sent: Friday, August 03, 2001 2:42 PM
To: jamming@xxxxxxxxxxxx
Subject: [jamming] The Jam Annoyance FAQ
1. Why white space is the only delimiter in jam?
It was a _mistake_. At the time ('93) whitespace in file names
was very uncommon, but one platform critical to us was VMS.
You know, $sys$device:[user.jam]parse.c;3 VMS.
I still think sparse quoting makes Jamfiles easy to read, but
requiring whitespace around the ; is very error prone.
If there is a compatible way of changing this without a "mode
bit," I'm all ears.
- Volodya
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