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awful.rules: factor out `matches` 

This factors out `matches` and uses it in `matches_list` (renamed
from `does_match`) to short-circuit the successful case - where not all
rules have to get checked.

Closes https://github.com/awesomeWM/awesome/pull/431.
This commit is contained in:
Daniel Hahler 2015-08-30 13:01:59 +02:00
parent 285f24d234
commit a251331683
1 changed files with 20 additions and 7 deletions
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27
lib/awful/rules.lua
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@ -130,6 +130,16 @@ function rules.match_any(c, rule)
return false
end
--- Does a given rule entry match a client?
-- @client c The client.
-- @tab entry Rule entry (with keys `rule`, `rule_any`, `except` and/or
-- `except_any`).
-- @treturn bool
function rules.matches(c, entry)
return (rules.match(c, entry.rule) or rules.match_any(c, entry.rule_any)) and
(not rules.match(c, entry.except) and not rules.match_any(c, entry.except_any))
end
--- Get list of matching rules for a client.
-- @client c The client.
-- @tab _rules The rules to check. List with "rule", "rule_any", "except" and
@ -138,8 +148,7 @@ end
function rules.matching_rules(c, _rules)
local result = {}
for _, entry in ipairs(_rules) do
if (rules.match(c, entry.rule) or rules.match_any(c, entry.rule_any)) and
(not rules.match(c, entry.except) and not rules.match_any(c, entry.except_any)) then
if (rules.matches(c, entry)) then
table.insert(result, entry)
end
end
@ -148,12 +157,16 @@ end
--- Check if a client matches a given set of rules.
-- @client c The client.
-- @tab _rules The rules to check. List with "rule", "rule_any", "except" and
-- "except_any" keys.
-- @tab _rules The rules to check. List of tables with `rule`, `rule_any`,
-- `except` and `except_any` keys.
-- @treturn bool True if at least one rule is matched, false otherwise.
function rules.does_match(c, _rules)
local result = rules.matching_rules(c, _rules)
return #result == 0 and false or result
function rules.matches_list(c, _rules)
for _, entry in ipairs(_rules) do
if (rules.matches(c, entry)) then
return true
end
end
return false
end
--- Apply awful.rules.rules to a client.