Module: Tb::Func
- Defined in:
- lib/tb/func.rb
Overview
Copyright © 2012 Tanaka Akira <[email protected]>
Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following
disclaimer in the documentation and/or other materials provided
with the distribution.
3. The name of the author may not be used to endorse or promote
products derived from this software without specific prior
written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR “AS IS” AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Defined Under Namespace
Modules: Avg, Count, First, Last, Max, Min, Sum, UniqueValues, Values Classes: FirstN, LastN
Constant Summary collapse
- AggregationFunctions =
{}
Class Method Summary collapse
Class Method Details
.smart_cmp_value(v) ⇒ Object
30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 |
# File 'lib/tb/func.rb', line 30 def self.smart_cmp_value(v) case v when nil [] when Numeric [0, v] when String if v.respond_to? :force_encoding v = v.dup.force_encoding("ASCII-8BIT") end case v when /\A\s*-?\d+\s*\z/ [0, v.to_i(10)] when /\A\s*-?(\d+(\.\d+)?)([eE][-+]?\d+)?\s*\z/ [0, Float(v)] else a = [] v.scan(/(\d+)|\D+/) { if $1 a << 0 << $1.to_i else a << 1 << $& end } a end else raise ArgumentError, "unexpected: #{v.inspect}" end end |
.smart_numerize(v) ⇒ Object
61 62 63 64 65 66 67 68 69 70 71 72 |
# File 'lib/tb/func.rb', line 61 def self.smart_numerize(v) return v if v.kind_of? Numeric v = v.strip if /\A-?\d+\z/ =~ v v = v.to_i elsif /\A-?(\d+(\.\d*)?|\.\d+)([eE][-+]?\d+)?\z/ =~ v v = v.to_f else raise ArgumentError, "number string expected: #{v.inspect}" end v end |