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* lib/jcode.rb (_regexp_quote): fix quote handling, again.

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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@1733 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
eban 2001-09-06 04:34:36 +00:00
parent 0530ceb2b9
commit d878585e5f
2 changed files with 18 additions and 12 deletions
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26
lib/jcode.rb
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@ -9,7 +9,9 @@ class String
printf STDERR, "feel free for some warnings:\n" if $VERBOSE
def _regex_quote(str)
str.gsub(/[][\\]/, '\\\\\&')
str.gsub(/(\\[-\\])|\\(.)|([][\\])/) do
$1 || $2 || '\\' + $3
end
end
private :_regex_quote
@ -95,15 +97,15 @@ class String
def _expand_ch str
a = []
str.scan(/(.)-(.)|(.)/m) do |r|
if $3
a.push $3
elsif $1.length != $2.length
next
elsif $1.length == 1
$1[0].upto($2[0]) { |c| a.push c.chr }
str.scan(/(?:\\([-\\]))|(.)-(.)|(.)/m) do
if s = $1 || $4
a.push s
elsif $2.length != $3.length
next
elsif $2.length == 1
$2[0].upto($3[0]) { |c| a.push c.chr }
else
$1.upto($2) { |c| a.push c }
$2.upto($3) { |c| a.push c }
end
end
a
@ -132,7 +134,7 @@ class String
last = /.$/.match(to)[0]
self.gsub!(pattern, last)
else
h = HashCache[from + "::" + to] ||= expand_ch_hash(from, to)
h = HashCache[from + "1-0" + to] ||= expand_ch_hash(from, to)
self.gsub!(pattern) do |c| h[c] end
end
end
@ -166,12 +168,12 @@ class String
def tr_s!(from, to)
return self.delete!(from) if to.length == 0
pattern = SqueezePatternCache[from] ||= /([#{_regex_quote(from)}])\1+"/
pattern = SqueezePatternCache[from] ||= /([#{_regex_quote(from)}])\1+/
if from[0] == ?^
last = /.$/.match(to)[0]
self.gsub!(pattern, last)
else
h = HashCache[from + "::" + to] ||= expand_ch_hash(from, to)
h = HashCache[from + "1-0" + to] ||= expand_ch_hash(from, to)
self.gsub!(pattern) do h[$1] end
end
end