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root = exports ? window
RegexpCache =
cache: {}
get: (pattern) ->
if regexp = @cache[pattern]
regexp
else
@cache[pattern] =
try
new RegExp("^" + pattern.replace(/\*/g, ".*") + "$")
catch
/^$/ # Match the empty string.
# The Exclusions class manages the exclusion rule setting.
# An exclusion is an object with two attributes: pattern and passKeys.
# The exclusions are an array of such objects (because the order matters).
root.Exclusions = Exclusions =
rules: Settings.get("exclusionRules")
# Return the first exclusion rule matching the URL, or null.
getRule: (url) ->
for rule in @rules
return rule if url.match(RegexpCache.get(rule.pattern))
return null
setRules: (rules) ->
# Callers map a rule to null to have it deleted, and rules without a pattern are useless.
@rules = rules.filter (rule) -> rule and rule.pattern
Settings.set("exclusionRules", @rules)
postUpdateHook: (rules) ->
@rules = rules
# Update an existing rule or add a new rule.
updateOrAdd: (newRule) ->
seen = false
@rules.push(newRule)
@setRules @rules.map (rule) ->
if rule.pattern == newRule.pattern
if seen then null else seen = newRule
else
rule
remove: (pattern) ->
@setRules(@rules.filter((rule) -> rule and rule.pattern != pattern))
# Development and debug only.
# Enable this (temporarily) to restore legacy exclusion rules from backup.
if false and Settings.has("excludedUrlsBackup")
Settings.clear("exclusionRules")
Settings.set("excludedUrls", Settings.get("excludedUrlsBackup"))
if not Settings.has("exclusionRules") and Settings.has("excludedUrls")
# Migration from the legacy representation of exclusion rules.
#
# In Vimium 1.45 and in github/master on 27 August, 2014, exclusion rules are represented by the setting:
# excludedUrls: "http*://www.google.com/reader/*\nhttp*://mail.google.com/* jk"
#
# The new (equivalent) settings is:
# exclusionRules: [ { pattern: "http*://www.google.com/reader/*", passKeys: "" }, { pattern: "http*://mail.google.com/*", passKeys: "jk" } ]
parseLegacyRules = (lines) ->
for line in lines.trim().split("\n").map((line) -> line.trim())
if line.length and line.indexOf("#") != 0 and line.indexOf('"') != 0
parse = line.split(/\s+/)
{ pattern: parse[0], passKeys: parse[1..].join("") }
Exclusions.setRules(parseLegacyRules(Settings.get("excludedUrls")))
# We'll keep a backup of the "excludedUrls" setting, just in case.
Settings.set("excludedUrlsBackup", Settings.get("excludedUrls")) if not Settings.has("excludedUrlsBackup")
Settings.clear("excludedUrls")
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