Re: 'buffer-substring' returns rubbish

[Eli Zaretskii]

On Wed, 17 Jan 2001, PILCH Hartmut wrote:

> When evalling the following sexp in a buffer
>         
>      (buffer-substring (line-beginning-position) (line-end-position))
> 
> I usually get a string representing the current line under my cursor.
> But quite often I instead get a strange record back, like this:
> 
> #("WeOfferRewardsForKnowledge (buffer-substring (line-beginning-position) 
> (line-end-position))" 0 26 (face (w3-style-face-00000 w3-style-face-00000 
> w3-style-face-00000 w3-style-face-00000 w3-style-face-00000 
> w3-style-face-00000 w3-style-face-00010) html-stack ((p) (center) (td) (table 
> (w3-table-info [16] [108] 1 1) (border . "0") (cellpadding . "1") 
> (cellspacing . "1")) (table (w3-table-info [16] [108] 1 1) (border . "0") 
> (cellpadding . "1") (cellspacing . "1")) (td (width . "100%") (align . 
> center) (valign . "top")) (table (w3-table-info [1 15 1 67 1 1 1 35 0 0 0 0 
> 1] [1 15 1 396 1 1 1 345 0 0 0 0 1] 7 13) (height . "100%") (width . "100%") 
> (border . "0") (cellpadding . "0") (cellspacing . "0") (bgcolor . "white")) 
> (table (w3-table-info [1 15 1 67 1 1 1 35 0 0 0 0 1] [1 15 1 396 1 1 1 345 0 
> 0 0 0 1] 7 13) (height . "100%") (width . "100%") (border . "0") (cellpadding 
> . "0") (cellspacing . "0") (bgcolor . "white")) (bodytext) (body (topmargin . 
> "0") (leftmargin . "0") (margi!
!
>  nheight . "0") (marginwidth . "0")) (html) (*document)) start-open nil 
> end-open nil front-sticky t rear-nonsticky nil duplicable t) 26 27 nil 27 91 
> nil)

Does it help to use buffer-substring-no-properties instead of 
buffer-substring?

> I have not found out anything about the conditions that cause this.

I think this will happen for lines which have text properties associated 
with them.  It's a feature, actually.