On Fri, 2013-12-06 at 16:02 -0500, Joe Quinn wrote: > The file 10_hasbase.cf has the following rule: > uri __HAS_URI /./ > > Is there a similar rule anywhere (or a way to write one), which could > match against emails containing many URIs?
"tflags multiple" is the general answer to counting. There are a few caveats and issues to consider in this particular case, though. uri __HAS_N_URIS /^./ tflags __HAS_N_URIS multiple meta HAS_4_URIS __HAS_N_URIS >= 4 The non-scoring sub-rule does the counting, while the meta defines an actual rule based on the number of occurrences. Important notes regarding that rule-set: * It is NOT sufficient to simply add tflags multiple to the __HAS_URI rule. Multiple RE evaluation is continued, where the previous match ended. Thus, tflags multiple would result in counting chars in all URIs. The RE /^./ prevents this by anchoring at the beginning of the string, thus the beginning of a URI. * The above requires SA 3.3, it does NOT work with 3.2. The reason is the URI parser re-design for 3.3. Previous versions matched uri rules against multiple cleaned, canonicalized versions in some cases. A plain example.net in text without protocol results in a duplicate "http://example.net" in the list of URIs -- impossible to filter out. For development, or to verify what the rule matches exactly, a slightly modified version can be used: uri __HAS_N_URIS /^.+/ Greedy matching like that consumes the whole URI, which is handy with the -D debug output listing the actual match -- for each of the multiple rule matches. dbg: rules: ran uri rule __HAS_N_URIS ======> got hit: "http://example.net" -- char *t="\10pse\0r\0dtu\0.@ghno\x4e\xc8\x79\xf4\xab\x51\x8a\x10\xf4\xf4\xc4"; main(){ char h,m=h=*t++,*x=t+2*h,c,i,l=*x,s=0; for (i=0;i<l;i++){ i%8? c<<=1: (c=*++x); c&128 && (s+=h); if (!(h>>=1)||!t[s+h]){ putchar(t[s]);h=m;s=0; }}}