5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
|
# File 'lib/command_search/lexer.rb', line 5
def lex(input)
out = []
i = 0
while i < input.length
match = nil
case input[i..-1]
when /^\s+/
i += Regexp.last_match[0].length
next
when /^"(.*?)"/
match = Regexp.last_match[1]
type = :quoted_str
when /^'(.*?)'/
match = Regexp.last_match[1]
type = :quoted_str
when /^\-?\d+(\.\d+)?(?=$|[\s"':|<>)(])/
type = :number
when /^\|+/
type = :pipe
when /^-/
type = :minus
when /^:/
type = :colon
when /^[()]/
type = :paren
when /^[<>]=?/
type = :compare
when /^\d*[^\d\s:)][^\s"'|:<>)(]*/
type = :str
when /^./
type = :str
end
match = match || Regexp.last_match[0]
out.push(type: type, value: match)
i += Regexp.last_match[0].length
end
out
end
|