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# based on http://cpan.uwinnipeg.ca/htdocs/Text-Glob/Text/Glob.pm.html#glob_to_regex_string-
# todo: release as separate gem
#
module Rerun
class Glob
NO_LEADING_DOT = '(?=[^\.])' # todo
START_OF_FILENAME = '(\A|\/)' # beginning of string or a slash
END_OF_STRING = '\z'
def initialize glob_string
@glob_string = glob_string
end
def to_regexp_string
chars = @glob_string.split('')
chars = smoosh(chars)
curlies = 0
escaping = false
string = chars.map do |char|
if escaping
escaping = false
char
else
case char
when '**'
"([^/]+/)*"
when '*'
".*"
when "?"
"."
when "."
"\\."
when "{"
curlies += 1
"("
when "}"
if curlies > 0
curlies -= 1
")"
else
char
end
when ","
if curlies > 0
"|"
else
char
end
when "\\"
escaping = true
"\\"
else
char
end
end
end.join
START_OF_FILENAME + string + END_OF_STRING
end
def to_regexp
Regexp.new(to_regexp_string)
end
def smoosh chars
out = []
until chars.empty?
char = chars.shift
if char == "*" and chars.first == "*"
chars.shift
chars.shift if chars.first == "/"
out.push("**")
else
out.push(char)
end
end
out
end
end
end
Version data entries
13 entries across 13 versions & 3 rubygems