Module: Sanscript::Detect

Defined in:
lib/sanscript/detect.rb

Overview

Transliteration scheme detection module. Developed from code available @ github.com/sanskrit/detect.js

Class Method Summary collapse

Class Method Details

.detect_scheme(text) ⇒ Symbol?

Attempts to detect the encoding scheme of the provided string.

Parameters:

  • text (String) —

    a string of Sanskrit text

Returns:

  • (Symbol, nil) —

    the Symbol of the scheme, or nil if no match



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# File 'lib/sanscript/detect.rb', line 60

def detect_scheme(text)
  text = text.to_str.gsub(RE_CONTROL_BLOCK, "")

  # Brahmic schemes are all within a specific range of code points.
  if RE_BRAHMIC_RANGE === text
    RE_BRAHMIC_SCRIPTS.each do |script, regex|
      return script if regex === text
    end
  end

  # Romanizations
  if RE_IAST_OR_KOLKATA_ONLY === text
    return :kolkata if RE_KOLKATA_ONLY === text
    :iast
  elsif RE_ITRANS_ONLY === text
    :itrans
  elsif RE_SLP1_ONLY === text
    :slp1
  elsif RE_VELTHUIS_ONLY === text
    :velthuis
  elsif RE_ITRANS_OR_VELTHUIS_ONLY === text
    :itrans
  elsif RE_HARVARD_KYOTO === text
    :hk
  end
end