[m-rev.] vim syntax highlighting & line wrapping

[Ralph Becket]

Fergus Henderson, Monday, 27 January 2003:
> +  " The complicated regexp here matches an 80-column string,
> +  " with proper treatment of tabs (assuming the tab size is 8):
> +  " each row consists of 10 columns, and each column consists of either 8
> +  " non-tab characters, or 0-7 non-tab characters followed by a tab.
> +  syn match   mercuryFirst80 +^\([^	]\{8}\|[^	]\{0,7}	\)\{10}+                                contains=ALL
> +  syn match   mercuryTooLong +^\([^	]\{8}\|[^	]\{0,7}	\)\{10}..*+                             contains=mercuryFirst80

Looks good, but it's better to use `<TAB>' or `\t' rather than raw tabs
in regular expressions provided you don't have `l' in your cpoptions vim
variable.  In fact, you could use [^[:blank:]] rather than [^ \t] for
maximum clarity.

	Ralph
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