GopherProxy

	TODO - surf-adblock - Surf adblock web extension
	git clone git://git.codemadness.org/surf-adblock
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	TODO (2813B)
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	1 - elementhiding: reverse exception rule are not supported (per domain).
	2 - block rule: exception rules are not supported: these are also abused s…
	3 to whitelist certain sites.
	4
	5 - simplify match, there are only a few rules with multiple *.
	6
	7 - loadrules: return struct rules* ?
	8 on error free rules.
	9
	10 - optimization: for simple patterns use: strstr, strcasestr, strcmp, str…
	11
	12 - combine rules in groups: display: none: display: initial, saves memory:
	13 rule1,rule2 { display: none; } vs rule 1{...}rule2{...}
	14
	15 - checkrequest -> allowrequest.
	16
	17 - add test-case for global exception rules (no domains), see globalcss i…
	18 also support inverse element hide rule: "~example.com##div.textad".
	19 - support domain name anchor separately: "\|\|".
	20 - test blocking websocket connections in surf.
	21 - skip protocol part when matching for now, (later add support for webso…
	22 - for f->matchbegin, matchend etc: make sure to match domain properly, c…
	23 domain (subdomain).
	24 - optimize towupper for fnmatch? check < 128, see musl optimization.
	25 - fix blocking of : \|\|ads.somesite.com^
	26 matchbegin and matchend rules are wrong.
	27 - fix tweakers.net popup / rule.
	28 this is in an exception rule...
	29
	30 make sure exception rules are always below in the list? modify a…
	31 - preprocess pattern upfront (no copying of data per match (snprintf)).
	32 - performance:
	33 - benchmark rule matching (timing).
	34 - bloom filters? some kind of cache?
	35 - optimize simple filter case.
	36 - also for single wildcard (at most start or end)? /bla or /bla
	37 - support separator "^" = [/\?]?
	38 - test it better.
	39 - CSS: separate CSS rules so it never is iterated in request rules.
	40 ? Cache all global rules, iterate site rules per site?
	41 - there is a websocket option? ignore it: block it in surf itself.
	42 test if websockets use ws:// prefix.
	43 - show linenr on error / ignored rule.
	44
	45 Docs:
	46 - https://adblockplus.org/en/filter-cheatsheet
	47 - https://adblockplus.org/filters
	48
	49 - On out-of-memory situations don't crash the page, but how to handle it?
	50 - CSS blocking: don't allow sites to override the appended global and
	51 site-specific stylesheet.
	52 - separate between site-specific and global block rules.
	53 - optimize matching:
	54 ? hashtable per domain for specific rules or use bloom filters f…
	55 - separate general block rules into a separate list.
	56 - test: just use a simple strstr/strcasestr for patterns with no…
	57 and no matchbegin/matchend. Use strncmp/strcasecmp for pattern…
	58 and matchbegin or matchend set.
	59 - make less CPU intensive.
	60 - maybe even include it statically?
	61 - optimize CSS rule matching (only per site?).
	62
	63 - optimize memory allocation.
	64 - optimize: pregenerate one global stylesheet that applies to all sites?
	65 - separate adblocker into daemon? not sure.