require 'formula' def install_language_data langs = { 'eng' => '989ed4c3a5b246d7353893e466c353099d8b73a1', 'heb' => '67e10e616caf62545eacd436e85f89436687e22b', 'hin' => '4ceef97ffb8b4ab5ac79ee4bad5b5be0885f228f', 'ara' => 'e15cf6b7a027454db56ecedab0038c7739ab29cc', 'tha' => '04a35c04585a887662dc668e54f5368dabf31f50' } langs.each do |lang, sha| klass = Class.new(Formula) do url "http://tesseract-ocr.googlecode.com/files/tesseract-ocr-3.02.#{lang}.tar.gz" version '3.02' sha1 sha end klass.new.brew { mv Dir['tessdata/*'], "#{share}/tessdata/" } end # pre-3.01 language data uses a different URL format and installs differently langs_old = { 'chr' => 'e49b17bb73911926050d45832171a54ab1d1f34c', 'deu-frak' => '5651562e0d944b5b89cc5977d71482089f12669f', 'swe-frak' => '22220ad4303ebe290e4e71170e96b488e81a7f1a', 'chi_tra' => 'a9798de7e068d85613602aa33a153da721aadc82', 'chi_sim' => '35f0254f159edeed509ec1e0779073bf998b6cdb', 'ind' => 'f4214ce40c5f6ef92085a8a45e9ff03f7cf7afca', 'swe' => '55291e8ea664155ad51db867284c11ad1a1c5d00', 'ron' => 'c20c73a2e17f5fe692de0fe9ac681da3984229ae', 'slv' => 'fbe464cd49d6a7495e6d95600d421aa2dd0b9d77', 'srp' => '47afc601b62998e4cc3f7403d846ba861f30b416', 'tgl' => '153ba1d0ddd209e1581d81d42fe5346f748e2f27', 'tur' => 'a01da62f3830833b258e2d46ce0f2852571470e6', 'hun' => '32ecad03877a841fbc0cb31c269214640008d604', 'fin' => '004d74d13f7b53cbefb86e2ba12bc67dce81d936', 'ita' => 'c166ba79256f6e7c1b993b2db7403d794131fe05', 'nld' => 'f7e3d46b1747a19158ac0797e859b65c56b5045f', 'nor' => 'fb65dede5fbe120823ecdcb0c6cbd1222ae7e245', 'jpn' => '6d605eee29e76fb841924916bd34095bbbbc45c0', 'vie' => '9158748a63afe87e4e25b5f32c222555f2ad8417', 'spa' => '7b30950749e84891fdef5f89409c3cf1b6418cd3', 'ukr' => '06ceebfd91fa473d6d91f8a2856c66733bea0131', 'fra' => '8d698bb3b659e862b3274970a57b3214de76f1ff', 'slk' => '16207e26d53504f98a7b1fadcb873dc4611149ec', 'kor' => '37bcd8110a426714f54d99f58b30104b3014ce5a', 'ell' => 'b7a449fc320cc579a729c0352e5cc642f565e64e', 'rus' => '2740accefc45e4ae004269ccb195948b8037a583', 'por' => '883e5e1fa1d991ef6d202951ee9d26a71db181dc', 'bul' => 'a9efae5e347a36ea90bd2ad357e732ad4da47fd3', 'lav' => 'b4efd308e725d743884f2984f804c82dd5382f63', 'lit' => '7adbe396a281c0f87c0b95da7e84b5b6029e3dbd', 'pol' => 'a303fc31b4b60532b01b4ccdc838f02ff0113f27', 'dan-frak' => 'c0eba6d3ca688a04fd8e3ce45fdbbf20e8e67d45', 'deu' => 'c4b3ecde18ce9f114faba88cdfd0308f90801266', 'dan' => 'bfac9c00d28fc4b19034c2098d41087a173084ae', 'ces' => 'dbec19aa23f42a08e6b195a96e64b443f7519620', 'cat' => '0301a9c81c1d646bd1b135ca89476fb63bd634f8' } langs_old.each do |lang, sha| klass = Class.new(Formula) do url "http://tesseract-ocr.googlecode.com/files/#{lang}.traineddata.gz", :using => GzipOnlyDownloadStrategy version '3.00' sha1 sha end klass.new.brew { mv Dir['*'], "#{share}/tessdata/" } end end # This stays around for the English-only build option class TesseractEnglishData < Formula url 'http://tesseract-ocr.googlecode.com/files/tesseract-ocr-3.02.eng.tar.gz' version '3.02' sha1 '989ed4c3a5b246d7353893e466c353099d8b73a1' end class Tesseract < Formula homepage 'http://code.google.com/p/tesseract-ocr/' url 'http://tesseract-ocr.googlecode.com/files/tesseract-ocr-3.02.02.tar.gz' sha1 'a950acf7b75cf851de2de787e9abb62c58ca1827' option "all-languages", "Install recognition data for all languages" depends_on :automake depends_on :libtool depends_on 'libtiff' depends_on 'leptonica' fails_with :llvm do build 2206 cause "Executable 'tesseract' segfaults on 10.6 when compiled with llvm-gcc" end def install system "/bin/sh autogen.sh" # explicitly state leptonica header location, as the makefile defaults to /usr/local/include, # which doesn't work for non-default homebrew location ENV['LIBLEPT_HEADERSDIR'] = HOMEBREW_PREFIX/"include" system "./configure", "--disable-dependency-tracking", "--prefix=#{prefix}" system "make install" if build.include? "all-languages" install_language_data else TesseractEnglishData.new.brew { mv Dir['tessdata/*'], "#{share}/tessdata/" } end end def caveats; <<-EOF.undent Tesseract is an OCR (Optical Character Recognition) engine. The easiest way to use it is to convert the source to a Grayscale tiff: `convert source.png -type Grayscale terre_input.tif` then run tesseract: `tesseract terre_input.tif output` EOF end end