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https://github.com/Llewellynvdm/fzf.git
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Merge pull request #104 from junegunn/add-with-nth
Add --with-nth option
This commit is contained in:
commit
80819f3c44
9
.travis.yml
Normal file
9
.travis.yml
Normal file
@ -0,0 +1,9 @@
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language: ruby
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rvm:
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- "1.8.7"
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- "1.9.3"
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- "2.0.0"
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- "2.1.1"
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install: gem install curses minitest
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49
README.md
49
README.md
@ -65,38 +65,39 @@ Usage
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usage: fzf [options]
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Search
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-x, --extended Extended-search mode
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-e, --extended-exact Extended-search mode (exact match)
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-i Case-insensitive match (default: smart-case match)
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+i Case-sensitive match
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-n, --nth=N[,..] Comma-separated list of field index expressions
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for limiting search scope. Each can be a non-zero
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integer or a range expression ([BEGIN]..[END])
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-d, --delimiter=STR Field delimiter regex for --nth (default: AWK-style)
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-x, --extended Extended-search mode
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-e, --extended-exact Extended-search mode (exact match)
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-i Case-insensitive match (default: smart-case match)
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+i Case-sensitive match
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-n, --nth=N[,..] Comma-separated list of field index expressions
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for limiting search scope. Each can be a non-zero
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integer or a range expression ([BEGIN]..[END])
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--with-nth=N[,..] Transform the item using index expressions for search
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-d, --delimiter=STR Field delimiter regex for --nth (default: AWK-style)
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Search result
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-s, --sort=MAX Maximum number of matched items to sort (default: 1000)
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+s, --no-sort Do not sort the result. Keep the sequence unchanged.
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-s, --sort=MAX Maximum number of matched items to sort (default: 1000)
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+s, --no-sort Do not sort the result. Keep the sequence unchanged.
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Interface
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-m, --multi Enable multi-select with tab/shift-tab
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--no-mouse Disable mouse
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+c, --no-color Disable colors
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+2, --no-256 Disable 256-color
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--black Use black background
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--reverse Reverse orientation
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--prompt=STR Input prompt (default: '> ')
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-m, --multi Enable multi-select with tab/shift-tab
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--no-mouse Disable mouse
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+c, --no-color Disable colors
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+2, --no-256 Disable 256-color
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--black Use black background
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--reverse Reverse orientation
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--prompt=STR Input prompt (default: '> ')
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Scripting
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-q, --query=STR Start the finder with the given query
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-1, --select-1 Automatically select the only match
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-0, --exit-0 Exit immediately when there's no match
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-f, --filter=STR Filter mode. Do not start interactive finder.
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--print-query Print query as the first line
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-q, --query=STR Start the finder with the given query
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-1, --select-1 Automatically select the only match
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-0, --exit-0 Exit immediately when there's no match
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-f, --filter=STR Filter mode. Do not start interactive finder.
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--print-query Print query as the first line
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Environment variables
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FZF_DEFAULT_COMMAND Default command to use when input is tty
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FZF_DEFAULT_OPTS Defaults options. (e.g. "-x -m --sort 10000")
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FZF_DEFAULT_COMMAND Default command to use when input is tty
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FZF_DEFAULT_OPTS Defaults options. (e.g. "-x -m --sort 10000")
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```
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fzf will launch curses-based finder, read the list from STDIN, and write the
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1
Rakefile
1
Rakefile
@ -6,3 +6,4 @@ Rake::TestTask.new(:test) do |test|
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test.verbose = true
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end
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task :default => :test
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|
144
fzf
144
fzf
@ -7,7 +7,7 @@
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# / __/ / /_/ __/
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# /_/ /___/_/ Fuzzy finder for your shell
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#
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# Version: 0.8.7 (Aug 17, 2014)
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# Version: 0.8.8 (Nov 4, 2014)
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#
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# Author: Junegunn Choi
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# URL: https://github.com/junegunn/fzf
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@ -53,11 +53,34 @@ unless String.method_defined? :force_encoding
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end
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end
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class String
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attr_accessor :orig
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def tokenize delim, nth
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unless delim
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# AWK default
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prefix_length = (index(/\S/) || 0) rescue 0
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tokens = scan(/\S+\s*/) rescue []
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else
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prefix_length = 0
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tokens = scan(delim) rescue []
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end
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nth.map { |n|
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if n.begin == 0 && n.end == -1
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[prefix_length, tokens.join]
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elsif part = tokens[n]
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[prefix_length + (tokens[0...(n.begin)] || []).join.length,
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part.join]
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end
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}.compact
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end
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end
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class FZF
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C = Curses
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attr_reader :rxflag, :sort, :nth, :color, :black, :ansi256, :reverse, :prompt,
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:mouse, :multi, :query, :select1, :exit0, :filter, :extended,
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:print_query
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:print_query, :with_nth
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def sync
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@shr_mtx.synchronize { yield }
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@ -95,6 +118,7 @@ class FZF
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@exit0 = false
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@filter = nil
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@nth = nil
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@with_nth = nil
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@delim = nil
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@reverse = false
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@prompt = '> '
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@ -148,6 +172,11 @@ class FZF
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@nth = parse_nth nth
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when /^-n([0-9,-\.]+)$/, /^--nth=([0-9,-\.]+)$/
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@nth = parse_nth $1
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when '--with-nth'
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usage 1, 'field expression required' unless nth = argv.shift
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@with_nth = parse_nth nth
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when /^--with-nth=([0-9,-\.]+)$/
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@with_nth = parse_nth $1
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when '-d', '--delimiter'
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usage 1, 'delimiter required' unless delim = argv.shift
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@delim = FZF.build_delim_regex delim
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@ -181,6 +210,7 @@ class FZF
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@queue = Queue.new
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@pending = nil
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@rev_dir = @reverse ? -1 : 1
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@stdout = $stdout.clone
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unless @filter
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# Shared variables: needs protection
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@ -200,7 +230,7 @@ class FZF
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end
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def parse_nth nth
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nth.split(',').map { |expr|
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ranges = nth.split(',').map { |expr|
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x = proc { usage 1, "invalid field expression: #{expr}" }
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first, second = expr.split('..', 2)
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x.call if !first.empty? && first.to_i == 0 ||
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@ -215,6 +245,7 @@ class FZF
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Range.new(*[first, second].map { |e| e > 0 ? e - 1 : e })
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}
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ranges == [0..-1] ? nil : ranges
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end
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def FZF.build_delim_regex delim
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@ -222,6 +253,10 @@ class FZF
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Regexp.compile "(?:.*?#{delim})|(?:.+?$)"
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end
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def burp string, orig = nil
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@stdout.puts(orig || string.orig || string)
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end
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def start
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if @filter
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start_reader.join
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@ -236,7 +271,7 @@ class FZF
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if loaded
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if @select1 && len == 1
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puts @query if @print_query
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puts empty ? matches.first : matches.first.first
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burp(empty ? matches.first : matches.first.first)
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exit 0
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elsif @exit0 && len == 0
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puts @query if @print_query
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@ -312,39 +347,40 @@ class FZF
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$stderr.puts %[usage: fzf [options]
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Search
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-x, --extended Extended-search mode
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-e, --extended-exact Extended-search mode (exact match)
|
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-i Case-insensitive match (default: smart-case match)
|
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+i Case-sensitive match
|
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-n, --nth=N[,..] Comma-separated list of field index expressions
|
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for limiting search scope. Each can be a non-zero
|
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integer or a range expression ([BEGIN]..[END])
|
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-d, --delimiter=STR Field delimiter regex for --nth (default: AWK-style)
|
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-x, --extended Extended-search mode
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-e, --extended-exact Extended-search mode (exact match)
|
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-i Case-insensitive match (default: smart-case match)
|
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+i Case-sensitive match
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-n, --nth=N[,..] Comma-separated list of field index expressions
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for limiting search scope. Each can be a non-zero
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integer or a range expression ([BEGIN]..[END])
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--with-nth=N[,..] Transform the item using index expressions for search
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-d, --delimiter=STR Field delimiter regex for --nth (default: AWK-style)
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Search result
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-s, --sort=MAX Maximum number of matched items to sort (default: 1000)
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+s, --no-sort Do not sort the result. Keep the sequence unchanged.
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-s, --sort=MAX Maximum number of matched items to sort (default: 1000)
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+s, --no-sort Do not sort the result. Keep the sequence unchanged.
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Interface
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-m, --multi Enable multi-select with tab/shift-tab
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--no-mouse Disable mouse
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+c, --no-color Disable colors
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+2, --no-256 Disable 256-color
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--black Use black background
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--reverse Reverse orientation
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--prompt=STR Input prompt (default: '> ')
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-m, --multi Enable multi-select with tab/shift-tab
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--no-mouse Disable mouse
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+c, --no-color Disable colors
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+2, --no-256 Disable 256-color
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--black Use black background
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--reverse Reverse orientation
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--prompt=STR Input prompt (default: '> ')
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Scripting
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-q, --query=STR Start the finder with the given query
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-1, --select-1 Automatically select the only match
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-0, --exit-0 Exit immediately when there's no match
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-f, --filter=STR Filter mode. Do not start interactive finder.
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--print-query Print query as the first line
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-q, --query=STR Start the finder with the given query
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-1, --select-1 Automatically select the only match
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-0, --exit-0 Exit immediately when there's no match
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-f, --filter=STR Filter mode. Do not start interactive finder.
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--print-query Print query as the first line
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Environment variables
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FZF_DEFAULT_COMMAND Default command to use when input is tty
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FZF_DEFAULT_OPTS Defaults options. (e.g. "-x -m --sort 10000")] + $/ + $/
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exit x
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FZF_DEFAULT_COMMAND Default command to use when input is tty
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FZF_DEFAULT_OPTS Defaults options. (e.g. "-x -m --sort 10000")] + $/ + $/
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exit x
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end
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def emit event
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@ -520,7 +556,6 @@ class FZF
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end
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def init_screen
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@stdout = $stdout.clone
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$stdout.reopen($stderr)
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C.init_screen
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@ -595,14 +630,28 @@ class FZF
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end
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Thread.new do
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while line = stream.gets
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emit(:new) { @new << line.chomp }
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if @with_nth
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while line = stream.gets
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emit(:new) { @new << transform(line) }
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end
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else
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while line = stream.gets
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emit(:new) { @new << line.chomp }
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end
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end
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emit(:loaded) { true }
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@spinner.clear if @spinner
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end
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end
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def transform line
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line = line.chomp
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mut = (line =~ / $/ ? line : line + ' ').
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tokenize(@delim, @with_nth).map { |e| e.last }.join('').sub(/ *$/, '')
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mut.orig = line
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mut
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end
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def start_search &callback
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Thread.new do
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lists = []
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@ -694,7 +743,8 @@ class FZF
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def pick
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sync do
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[*@matches.fetch(@ycur, [])][0]
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item = @matches[@ycur]
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item.is_a?(Array) ? item[0] : item
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end
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end
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@ -1000,7 +1050,7 @@ class FZF
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if @selects.has_key? sel
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@selects.delete sel
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else
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@selects[sel] = 1
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@selects[sel] = sel.orig
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end
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end
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vselect { |v| v + case o
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@ -1080,10 +1130,10 @@ class FZF
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@stdout.puts q if @print_query
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if got
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if selects.empty?
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@stdout.puts got
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burp got
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else
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selects.each do |sel, _|
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@stdout.puts sel
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selects.each do |sel, orig|
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burp sel, orig
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end
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end
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end
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@ -1108,25 +1158,7 @@ class FZF
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end
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def tokenize str
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@tokens_cache[str] ||=
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begin
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unless @delim
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# AWK default
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prefix_length = (str.index(/\S/) || 0) rescue 0
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tokens = str.scan(/\S+\s*/) rescue []
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else
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prefix_length = 0
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tokens = str.scan(@delim) rescue []
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end
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@nth.map { |n|
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if n.begin == 0 && n.end == -1
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[prefix_length, tokens.join]
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elsif part = tokens[n]
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[prefix_length + (tokens[0...(n.begin)] || []).join.length,
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part.join]
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end
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}.compact
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end
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@tokens_cache[str] ||= str.tokenize(@delim, @nth)
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end
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|
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def do_match str, pat
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|
144
test/test_fzf.rb
144
test/test_fzf.rb
@ -1,6 +1,7 @@
|
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#!/usr/bin/env ruby
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# encoding: utf-8
|
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|
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require 'rubygems'
|
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require 'curses'
|
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require 'timeout'
|
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require 'stringio'
|
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@ -10,6 +11,48 @@ $LOAD_PATH.unshift File.expand_path('../..', __FILE__)
|
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ENV['FZF_EXECUTABLE'] = '0'
|
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load 'fzf'
|
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|
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class MockTTY
|
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def initialize
|
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@buffer = ''
|
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@mutex = Mutex.new
|
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@condv = ConditionVariable.new
|
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end
|
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|
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def read_nonblock sz
|
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@mutex.synchronize do
|
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take sz
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end
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end
|
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|
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def take sz
|
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if @buffer.length >= sz
|
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ret = @buffer[0, sz]
|
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@buffer = @buffer[sz..-1]
|
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ret
|
||||
end
|
||||
end
|
||||
|
||||
def getc
|
||||
sleep 0.1
|
||||
while true
|
||||
@mutex.synchronize do
|
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if char = take(1)
|
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return char
|
||||
else
|
||||
@condv.wait(@mutex)
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
def << str
|
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@mutex.synchronize do
|
||||
@buffer << str
|
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@condv.broadcast
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
class TestFZF < MiniTest::Unit::TestCase
|
||||
def setup
|
||||
ENV.delete 'FZF_DEFAULT_SORT'
|
||||
@ -25,6 +68,7 @@ class TestFZF < MiniTest::Unit::TestCase
|
||||
assert_equal nil, fzf.rxflag
|
||||
assert_equal true, fzf.mouse
|
||||
assert_equal nil, fzf.nth
|
||||
assert_equal nil, fzf.with_nth
|
||||
assert_equal true, fzf.color
|
||||
assert_equal false, fzf.black
|
||||
assert_equal true, fzf.ansi256
|
||||
@ -47,7 +91,7 @@ class TestFZF < MiniTest::Unit::TestCase
|
||||
|
||||
ENV['FZF_DEFAULT_OPTS'] =
|
||||
'-x -m -s 10000 -q " hello world " +c +2 --select-1 -0 ' <<
|
||||
'--no-mouse -f "goodbye world" --black --nth=3,-1,2 --reverse --print-query'
|
||||
'--no-mouse -f "goodbye world" --black --with-nth=3,-3..,2 --nth=3,-1,2 --reverse --print-query'
|
||||
fzf = FZF.new []
|
||||
assert_equal 10000, fzf.sort
|
||||
assert_equal ' hello world ',
|
||||
@ -65,13 +109,14 @@ class TestFZF < MiniTest::Unit::TestCase
|
||||
assert_equal true, fzf.reverse
|
||||
assert_equal true, fzf.print_query
|
||||
assert_equal [2..2, -1..-1, 1..1], fzf.nth
|
||||
assert_equal [2..2, -3..-1, 1..1], fzf.with_nth
|
||||
end
|
||||
|
||||
def test_option_parser
|
||||
# Long opts
|
||||
fzf = FZF.new %w[--sort=2000 --no-color --multi +i --query hello --select-1
|
||||
--exit-0 --filter=howdy --extended-exact
|
||||
--no-mouse --no-256 --nth=1 --reverse --prompt (hi)
|
||||
--no-mouse --no-256 --nth=1 --with-nth=.. --reverse --prompt (hi)
|
||||
--print-query]
|
||||
assert_equal 2000, fzf.sort
|
||||
assert_equal true, fzf.multi
|
||||
@ -86,6 +131,7 @@ class TestFZF < MiniTest::Unit::TestCase
|
||||
assert_equal 'howdy', fzf.filter
|
||||
assert_equal :exact, fzf.extended
|
||||
assert_equal [0..0], fzf.nth
|
||||
assert_equal nil, fzf.with_nth
|
||||
assert_equal true, fzf.reverse
|
||||
assert_equal '(hi)', fzf.prompt
|
||||
assert_equal true, fzf.print_query
|
||||
@ -168,13 +214,12 @@ class TestFZF < MiniTest::Unit::TestCase
|
||||
end
|
||||
end
|
||||
|
||||
# FIXME Only on 1.9 or above
|
||||
def test_width
|
||||
fzf = FZF.new []
|
||||
assert_equal 5, fzf.width('abcde')
|
||||
assert_equal 4, fzf.width('한글')
|
||||
assert_equal 5, fzf.width('한글.')
|
||||
end
|
||||
end if RUBY_VERSION >= '1.9'
|
||||
|
||||
def test_trim
|
||||
fzf = FZF.new []
|
||||
@ -187,7 +232,7 @@ class TestFZF < MiniTest::Unit::TestCase
|
||||
assert_equal ['가나a', 6], fzf.trim('가나ab라마바사.', 5, false)
|
||||
assert_equal ['가나ab', 5], fzf.trim('가나ab라마바사.', 6, false)
|
||||
assert_equal ['가나ab', 5], fzf.trim('가나ab라마바사.', 7, false)
|
||||
end
|
||||
end if RUBY_VERSION >= '1.9'
|
||||
|
||||
def test_format
|
||||
fzf = FZF.new []
|
||||
@ -563,28 +608,41 @@ class TestFZF < MiniTest::Unit::TestCase
|
||||
assert_equal [[list[0], [[8, 9]]]], matcher.match(list, '^s', '', '')
|
||||
end
|
||||
|
||||
def stream_for str
|
||||
def stream_for str, delay = 0
|
||||
StringIO.new(str).tap do |sio|
|
||||
sio.instance_eval do
|
||||
alias org_gets gets
|
||||
|
||||
def gets
|
||||
org_gets.tap { |e| sleep 0.5 unless e.nil? }
|
||||
org_gets.tap { |e| sleep(@delay) unless e.nil? }
|
||||
end
|
||||
|
||||
def reopen _
|
||||
end
|
||||
end
|
||||
sio.instance_variable_set :@delay, delay
|
||||
end
|
||||
end
|
||||
|
||||
def assert_fzf_output opts, given, expected
|
||||
stream = stream_for given
|
||||
output = StringIO.new
|
||||
output = stream_for ''
|
||||
|
||||
def sorted_lines line
|
||||
line.split($/).sort
|
||||
end
|
||||
|
||||
begin
|
||||
tty = MockTTY.new
|
||||
$stdout = output
|
||||
FZF.new(opts, stream).start
|
||||
fzf = FZF.new(opts, stream)
|
||||
fzf.instance_variable_set :@tty, tty
|
||||
thr = block_given? && Thread.new { yield tty }
|
||||
fzf.start
|
||||
thr && thr.join
|
||||
rescue SystemExit => e
|
||||
assert_equal 0, e.status
|
||||
assert_equal expected, output.string.chomp
|
||||
assert_equal sorted_lines(expected), sorted_lines(output.string)
|
||||
ensure
|
||||
$stdout = STDOUT
|
||||
end
|
||||
@ -613,15 +671,12 @@ class TestFZF < MiniTest::Unit::TestCase
|
||||
end
|
||||
|
||||
def test_select_1_ambiguity
|
||||
stream = stream_for "Hello\nWorld"
|
||||
begin
|
||||
Timeout::timeout(2) do
|
||||
FZF.new(%w[--query=o --select-1], stream).start
|
||||
Timeout::timeout(0.5) do
|
||||
assert_fzf_output %w[--query=o --select-1], "hello\nworld", "should not match"
|
||||
end
|
||||
flunk 'Should not reach here'
|
||||
rescue Exception => e
|
||||
rescue Timeout::Error
|
||||
Curses.close_screen
|
||||
assert_instance_of Timeout::Error, e
|
||||
end
|
||||
end
|
||||
|
||||
@ -638,6 +693,32 @@ class TestFZF < MiniTest::Unit::TestCase
|
||||
assert_fzf_output %w[--exit-0], '', ''
|
||||
end
|
||||
|
||||
def test_with_nth
|
||||
source = "hello world\nbatman"
|
||||
assert_fzf_output %w[-0 -1 --with-nth=2,1 -x -q ^worl],
|
||||
source, 'hello world'
|
||||
assert_fzf_output %w[-0 -1 --with-nth=2,1 -x -q llo$],
|
||||
source, 'hello world'
|
||||
assert_fzf_output %w[-0 -1 --with-nth=.. -x -q llo$],
|
||||
source, ''
|
||||
assert_fzf_output %w[-0 -1 --with-nth=2,2,2,..,1 -x -q worlworlworlhellworlhell],
|
||||
source, 'hello world'
|
||||
assert_fzf_output %w[-0 -1 --with-nth=1,1,-1,1 -x -q batbatbatbat],
|
||||
source, 'batman'
|
||||
end
|
||||
|
||||
def test_with_nth_transform
|
||||
fzf = FZF.new %w[--with-nth 2..,1]
|
||||
assert_equal 'my world hello', fzf.transform('hello my world')
|
||||
assert_equal 'my world hello', fzf.transform('hello my world')
|
||||
assert_equal 'my world hello', fzf.transform('hello my world ')
|
||||
|
||||
fzf = FZF.new %w[--with-nth 2,-1,2]
|
||||
assert_equal 'my world my', fzf.transform('hello my world')
|
||||
assert_equal 'world world world', fzf.transform('hello world')
|
||||
assert_equal 'world world world', fzf.transform('hello world ')
|
||||
end
|
||||
|
||||
def test_ranking_overlap_match_regions
|
||||
list = [
|
||||
'1 3 4 2',
|
||||
@ -688,13 +769,42 @@ class TestFZF < MiniTest::Unit::TestCase
|
||||
tmp << 'hello ' << [0xff].pack('C*') << ' world' << $/ << [0xff].pack('C*')
|
||||
tmp.close
|
||||
begin
|
||||
Timeout::timeout(1) do
|
||||
Timeout::timeout(0.5) do
|
||||
FZF.new(%w[-n..,1,2.. -q^ -x], File.open(tmp.path)).start
|
||||
end
|
||||
rescue Timeout::Error
|
||||
Curses.close_screen
|
||||
end
|
||||
ensure
|
||||
tmp.unlink
|
||||
end
|
||||
|
||||
def test_with_nth_mock_tty
|
||||
# Manual selection with input
|
||||
assert_fzf_output ["--with-nth=2,1"], "hello world", "hello world" do |tty|
|
||||
tty << "world"
|
||||
tty << "hell"
|
||||
tty << "\r"
|
||||
end
|
||||
|
||||
# Manual selection without input
|
||||
assert_fzf_output ["--with-nth=2,1"], "hello world", "hello world" do |tty|
|
||||
tty << "\r"
|
||||
end
|
||||
|
||||
# Manual selection with input and --multi
|
||||
lines = "hello world\ngoodbye world"
|
||||
assert_fzf_output %w[-m --with-nth=2,1], lines, lines do |tty|
|
||||
tty << "o"
|
||||
tty << "\e[Z\e[Z"
|
||||
tty << "\r"
|
||||
end
|
||||
|
||||
# Manual selection without input and --multi
|
||||
assert_fzf_output %w[-m --with-nth=2,1], lines, lines do |tty|
|
||||
tty << "\e[Z\e[Z"
|
||||
tty << "\r"
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
|
Loading…
Reference in New Issue
Block a user