[SVN] r7628 (C)

[Allan Odgaard]

On 30. Jun 2007, at 02:17, Joachim Mårtensson wrote:

> [...] I did not want to change to much in existing rules before I know
> why things are as the are, perhaps someone can explain why the leading
> spaces are matched?

For prototypes we want to match just ‘name (…);’ in ‘type name (…);’.

But to avoid false positives like ‘new string();’, ‘else usage();’,  
or even ‘return res && foo();’ we need to look at what is to the left  
of ‘name (…)’.

We do this with look-behind, but since look-behind can only use fixed  
width patterns, we match ‘ name (…)’ (i.e. the space(s)) and can then  
use look-behind assertions to examine what’s to the left.