diff options
| -rwxr-xr-x | scratch/german-comments/find-german-comments.py | 162 | ||||
| -rw-r--r-- | scratch/german-comments/t/bogus.fxx | 0 | ||||
| -rw-r--r-- | scratch/german-comments/t/test.cxx | 59 | ||||
| -rw-r--r-- | scratch/german-comments/text_cat/COPYING | 504 | ||||
| -rw-r--r-- | scratch/german-comments/text_cat/Copyright | 21 | ||||
| -rw-r--r-- | scratch/german-comments/text_cat/LM/english.lm | 400 | ||||
| -rw-r--r-- | scratch/german-comments/text_cat/LM/german.lm | 400 | ||||
| -rwxr-xr-x | scratch/german-comments/text_cat/text_cat | 229 | ||||
| -rw-r--r-- | scratch/german-comments/text_cat/version | 2 |
9 files changed, 1777 insertions, 0 deletions
diff --git a/scratch/german-comments/find-german-comments.py b/scratch/german-comments/find-german-comments.py new file mode 100755 index 000000000..1538c6d57 --- /dev/null +++ b/scratch/german-comments/find-german-comments.py @@ -0,0 +1,162 @@ +#!/usr/bin/env python +######################################################################## +# +# Copyright (c) 2010 Jonas Jensen, Miklos Vajna +# +# Permission is hereby granted, free of charge, to any person +# obtaining a copy of this software and associated documentation +# files (the "Software"), to deal in the Software without +# restriction, including without limitation the rights to use, +# copy, modify, merge, publish, distribute, sublicense, and/or sell +# copies of the Software, and to permit persons to whom the +# Software is furnished to do so, subject to the following +# conditions: +# +# The above copyright notice and this permission notice shall be +# included in all copies or substantial portions of the Software. +# +# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES +# OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT +# HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, +# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING +# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR +# OTHER DEALINGS IN THE SOFTWARE. +# +######################################################################## + + +import sys, re, subprocess, os, optparse, string + +class Parser: + """ + This parser extracts comments from source files, tries to guess + their language and then prints out the german ones. + """ + def __init__(self): + self.strip = string.punctuation + " \n" + op = optparse.OptionParser() + op.set_usage("%prog [options] <rootdir>\n\n" + + "Searches for german comments in cxx/hxx source files inside a given root\n" + + "directory recursively.") + op.add_option("-v", "--verbose", action="store_true", dest="verbose", default=False, + help="Turn on verbose mode (print progress to stderr)") + self.options, args = op.parse_args() + try: + dir = args[0] + except IndexError: + dir = "." + self.check_source_files(dir) + + def get_comments(self, filename): + """ + Extracts the source code comments. + """ + linenum = 0 + if self.options.verbose: + sys.stderr.write("processing file '%s'...\n" % filename) + sock = open(filename) + # add an empty line to trigger the output of collected oneliner + # comment group + lines = sock.readlines() + ["\n"] + sock.close() + + in_comment = False + buf = [] + count = 1 + for i in lines: + if "//" in i and not in_comment: + # if we find a new //-style comment, then we + # just append it to a previous one if: there is + # only whitespace before the // mark that is + # necessary to make comments longer, giving + # more reliable output + if not len(re.sub("(.*)//.*", r"\1", i).strip(self.strip)): + s = re.sub(".*// ?", "", i).strip(self.strip) + if len(s): + buf.append(s) + else: + # otherwise it's an independent //-style comment in the next line + yield (count, "\n ".join(buf)) + buf = [re.sub(".*// ?", "", i.strip(self.strip))] + elif "//" not in i and not in_comment and len(buf) > 0: + # first normal line after a // block + yield (count, "\n ".join(buf)) + buf = [] + elif "/*" in i and "*/" not in i and not in_comment: + # start of a real multiline comment + in_comment = True + linenum = count + s = re.sub(".*/\*+", "", i.strip(self.strip)) + if len(s): + buf.append(s.strip(self.strip)) + elif in_comment and not "*/" in i: + # in multiline comment + s = re.sub("^( |\|)*\*?", "", i) + if len(s.strip(self.strip)): + buf.append(s.strip(self.strip)) + elif "*/" in i and in_comment: + # end of multiline comment + in_comment = False + s = re.sub(r"\*+/.*", "", i.strip(self.strip)) + if len(s): + buf.append(s) + yield (count, "\n ".join(buf)) + buf = [] + elif "/*" in i and "*/" in i: + # c-style oneliner comment + yield (count, re.sub(".*/\*(.*)\*/.*", r"\1", i).strip(self.strip)) + count += 1 + + def get_lang(self, s): + """ the output is 'german' or 'english' or 'german or english'. when + unsure, just don't warn, there are strings where you just can't + teremine the results reliably, like '#110680#' """ + cwd = os.getcwd() + # change to our directory + os.chdir(os.path.split(os.path.abspath(sys.argv[0]))[0]) + sock = subprocess.Popen(["text_cat/text_cat", "-d", "text_cat/LM"], stdin=subprocess.PIPE, stdout=subprocess.PIPE) + sock.stdin.write(s) + sock.stdin.close() + lang = sock.stdout.read().strip() + sock.stdout.close() + os.chdir(cwd) + return lang + + def is_german(self, s): + """ + determines if a string is german or not + """ + # for short strings we can't do reliable recognition, so skip + # short strings and less than 4 words + s = s.replace('\n', ' ') + if len(s) < 32 or len(s.split()) < 4: + return False + return "german" == self.get_lang(s) + + def check_file(self, path): + """ + checks each comment in a file + """ + for linenum, s in self.get_comments(path): + if self.is_german(s): + print "%s:%s: %s" % (path, linenum, s) + + def check_source_files(self, dir): + """ + checks each _tracked_ file in a directory recursively + """ + sock = os.popen(r"git ls-files '%s' |egrep '\.(c|h)xx$'" % dir) + lines = sock.readlines() + sock.close() + for path in lines: + self.check_file(path.strip()) + +try: + Parser() +except KeyboardInterrupt: + print "Interrupted!" + sys.exit(0) + +# vim:set shiftwidth=4 softtabstop=4 expandtab: diff --git a/scratch/german-comments/t/bogus.fxx b/scratch/german-comments/t/bogus.fxx new file mode 100644 index 000000000..e69de29bb --- /dev/null +++ b/scratch/german-comments/t/bogus.fxx diff --git a/scratch/german-comments/t/test.cxx b/scratch/german-comments/t/test.cxx new file mode 100644 index 000000000..9f0b4ebe1 --- /dev/null +++ b/scratch/german-comments/t/test.cxx @@ -0,0 +1,59 @@ +before_comment(); +foo(); // single line comment +//single line comment 2 +after_comment(); + +/* + * If there was some unconverted bytes on the last cycle then they + */ + +not_a_comment(); +/* + * dann mal einen harten Seitenumbruch einfuegen + */ + +not_a_comment(); + +/**************************************************************************/ + +// #110680# + + DEFAULTFONT_SERIF, // FNT_VARIABLE + +// Set base URI + +/************************************************************************* +|* +|* Deinitialisierung +|* +\************************************************************************/ + +/************************************************************************* +|* +|* Deinitialising +|* +\************************************************************************/ + +/* dann mal einen harten Seitenumbruch einfuegen */ + + // used to convert the 4 special ExtraProg/UINames for + // RES_POOLCOLL_LABEL_DRAWING, RES_POOLCOLL_LABEL_ABB, + // RES_POOLCOLL_LABEL_TABLE, RES_POOLCOLL_LABEL_FRAME + // forth and back. + // Non-matching names remain unchanged. + + bCntntCheck( FALSE ), // --> FME 2005-05-13 #i43742# <-- + bInFrontOfLabel( FALSE ), // #i27615# + bInNumPortion(FALSE), // #i23726# + nInNumPostionOffset(0) // #i23726# + +//////////////////////////////////////////////////////////// +// +// SmFontPickListBox +// + +// -------------------- +// SwGrfNode +// -------------------- + +//#define WID_??? 1024 diff --git a/scratch/german-comments/text_cat/COPYING b/scratch/german-comments/text_cat/COPYING new file mode 100644 index 000000000..5ab7695ab --- /dev/null +++ b/scratch/german-comments/text_cat/COPYING @@ -0,0 +1,504 @@ + GNU LESSER GENERAL PUBLIC LICENSE + Version 2.1, February 1999 + + Copyright (C) 1991, 1999 Free Software Foundation, Inc. + 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + +[This is the first released version of the Lesser GPL. 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You can do so by permitting +redistribution under these terms (or, alternatively, under the terms of the +ordinary General Public License). + + To apply these terms, attach the following notices to the library. It is +safest to attach them to the start of each source file to most effectively +convey the exclusion of warranty; and each file should have at least the +"copyright" line and a pointer to where the full notice is found. + + <one line to give the library's name and a brief idea of what it does.> + Copyright (C) <year> <name of author> + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + This library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with this library; if not, write to the Free Software + Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + +Also add information on how to contact you by electronic and paper mail. + +You should also get your employer (if you work as a programmer) or your +school, if any, to sign a "copyright disclaimer" for the library, if +necessary. Here is a sample; alter the names: + + Yoyodyne, Inc., hereby disclaims all copyright interest in the + library `Frob' (a library for tweaking knobs) written by James Random Hacker. + + <signature of Ty Coon>, 1 April 1990 + Ty Coon, President of Vice + +That's all there is to it! + + diff --git a/scratch/german-comments/text_cat/Copyright b/scratch/german-comments/text_cat/Copyright new file mode 100644 index 000000000..c1e75d3af --- /dev/null +++ b/scratch/german-comments/text_cat/Copyright @@ -0,0 +1,21 @@ +Copyright (c) 1994, 1995, 1996, 1997 by Gertjan van Noord. + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + This library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with this library; if not, write to the + Free Software Foundation, Inc., + 51 Franklin Street, Fifth Floor, Boston, + MA 02110-1301 USA + +cf. the file COPYING + + diff --git a/scratch/german-comments/text_cat/LM/english.lm b/scratch/german-comments/text_cat/LM/english.lm new file mode 100644 index 000000000..ab71632c6 --- /dev/null +++ b/scratch/german-comments/text_cat/LM/english.lm @@ -0,0 +1,400 @@ +_ 20326 +e 6617 +t 4843 +o 3834 +n 3653 +i 3602 +a 3433 +s 2945 +r 2921 +h 2507 +e_ 2000 +d 1816 +_t 1785 +c 1639 +l 1635 +th 1535 +he 1351 +_th 1333 +u 1309 +f 1253 +m 1175 +p 1151 +_a 1145 +the 1142 +_the 1060 +s_ 978 +er 968 +_o 967 +he_ 928 +d_ 888 +t_ 885 +the_ 844 +_the_ 843 +on 842 +in 817 +y 783 +n_ 773 +b 761 +re 754 +, 734 +,_ 732 +an 732 +g 728 +w 718 +_i 707 +en 676 +f_ 599 +y_ 595 +of 594 +_of 592 +es 589 +ti 587 +v 580 +_of_ 575 +of_ 575 +nd 568 +at 549 +r_ 540 +_w 534 +it 522 +ed 496 +_p 494 +nt 485 +_c 462 +o_ 457 +io 450 +_an 439 +te 432 +or 425 +_b 418 +nd_ 407 +to 406 +st 402 +is 401 +_s 396 +_in 389 +ion 385 +and 385 +de 384 +ve 382 +ha 375 +ar 366 +_m 361 +and_ 360 +_and 360 +_and_ 358 +se 353 +_to 347 +me 346 +to_ 344 +ed_ 339 +. 330 +be 329 +_f 329 +._ 329 +_to_ 320 +co 317 +ic 316 +ns 308 +al 307 +le 304 +ou 304 +ce 293 +ent 279 +l_ 278 +_co 277 +tio 275 +on_ 274 +_d 274 +tion 268 +ri 266 +_e 264 +ng 253 +hi 251 +er_ 249 +ea 246 +as 245 +_be 242 +pe 242 +h_ 234 +_r 232 +ec 227 +ch 223 +ro 222 +ct 220 +_h 219 +pr 217 +in_ 217 +ne 214 +ll 214 +rt 213 +s,_ 210 +s, 210 +li 209 +ra 208 +T 207 +wh 204 +a_ 203 +ac 201 +_wh 199 +_n 196 +ts 196 +di 196 +es_ 195 +si 194 +re_ 193 +at_ 192 +nc 192 +ie 190 +_a_ 188 +_in_ 185 +ing 184 +us 182 +_re 182 +g_ 179 +ng_ 178 +op 178 +con 177 +tha 175 +_l 174 +_tha 174 +ver 173 +ma 173 +ion_ 171 +_con 171 +ci 170 +ons 170 +_it 170 +po 169 +ere 168 +is_ 167 +ta 167 +la 166 +_pr 165 +fo 164 +ho 164 +ir 162 +ss 161 +men 160 +be_ 160 +un 159 +ty 159 +_be_ 158 +ing_ 157 +om 156 +ot 156 +hat 155 +ly 155 +_g 155 +em 153 +_T 151 +rs 150 +mo 148 +ch_ 148 +wi 147 +we 147 +ad 147 +ts_ 145 +res 143 +_wi 143 +I 143 +hat_ 142 +ei 141 +ly_ 141 +ni 140 +os 140 +ca 139 +ur 139 +A 138 +ut 138 +that 138 +_that 137 +ati 137 +_fo 137 +st_ 137 +il 136 +or_ 136 +for 136 +pa 136 +ul 135 +ate 135 +ter 134 +it_ 134 +nt_ 133 +that_ 132 +_ha 129 +al_ 128 +el 128 +as_ 127 +ll_ 127 +_ma 125 +no 124 +ment 124 +an_ 124 +tion_ 122 +su 122 +bl 122 +_de 122 +nce 120 +pl 120 +fe 119 +tr 118 +so 118 +int 115 +ov 114 +e, 114 +e,_ 114 +_u 113 +ent_ 113 +Th 113 +her 113 +j 112 +atio 112 +ation 112 +_Th 111 +le_ 110 +ai 110 +_it_ 110 +_on 110 +_for 109 +ect 109 +k 109 +hic 108 +est 108 +der 107 +tu 107 +na 106 +_by_ 106 +by_ 106 +E 106 +by 106 +_by 106 +ve_ 106 +_di 106 +en_ 104 +vi 104 +m_ 103 +_whi 102 +iv 102 +whi 102 +ns_ 102 +_A 101 +ich 100 +ge 100 +pro 99 +ess 99 +_whic 99 +ers 99 +hich 99 +ce_ 99 +which 99 +whic 99 +all 98 +ove 98 +_is 98 +ich_ 97 +ee 97 +hich_ 97 +n,_ 96 +n, 96 +im 95 +ir_ 94 +hei 94 +ions 94 +sti 94 +se_ 94 +per 93 +The 93 +_pa 93 +heir 93 +id 93 +eir 93 +eir_ 93 +ig 93 +heir_ 93 +_no 93 +ev 93 +era 92 +_int 92 +ted 91 +_The 91 +ies 91 +art 91 +thei 90 +_ar 90 +_thei 90 +their 90 +_pro 90 +et 89 +_pe 88 +_mo 88 +ther 88 +x 87 +gh 87 +S 87 +_is_ 87 +ol 87 +ty_ 87 +_I 86 +nde 86 +am 86 +rn 86 +nte 86 +mp 85 +_su 84 +_we 84 +par 84 +_v 84 +pu 82 +his 82 +ow 82 +mi 82 +go 81 +N 81 +ue 81 +ple 81 +ep 80 +ab 80 +;_ 80 +; 80 +ex 80 +ain 80 +over 80 +_un 79 +q 79 +qu 79 +pp 79 +ith 79 +ry 79 +_as 79 +ber 79 +ub 78 +av 78 +uc 78 +s._ 77 +s. 77 +enc 77 +are 77 +iti 77 +gr 76 +his_ 76 +ua 76 +part 76 +ff 75 +eve 75 +O 75 +rea 74 +ous 74 +ia 74 +The_ 73 +ag 73 +mb 73 +_go 73 +fa 72 +on,_ 72 +ern 72 +t,_ 72 +on, 72 +t, 72 +_me 71 diff --git a/scratch/german-comments/text_cat/LM/german.lm b/scratch/german-comments/text_cat/LM/german.lm new file mode 100644 index 000000000..6f14f51ef --- /dev/null +++ b/scratch/german-comments/text_cat/LM/german.lm @@ -0,0 +1,400 @@ +_ 31586 +e 15008 +n 9058 +i 7299 +r 6830 +t 5662 +s 5348 +a 4618 +h 4176 +d 4011 +er 3415 +en 3412 +u 3341 +l 3266 +n_ 2848 +c 2636 +ch 2460 +g 2407 +o 2376 +e_ 2208 +r_ 2128 +m 2077 +_d 1948 +de 1831 +en_ 1786 +ei 1718 +er_ 1570 +in 1568 +te 1505 +ie 1505 +b 1458 +t_ 1425 +f 1306 +k 1176 +ge 1144 +s_ 1137 +un 1113 +, 1104 +,_ 1099 +w 1099 +z 1060 +nd 1039 +he 1004 +st 989 +_s 952 +_de 949 +. 909 +_e 906 +ne 906 +der 880 +._ 847 +be 841 +es 829 +ic 796 +_a 791 +ie_ 779 +is 769 +ich 763 +an 755 +re 749 +di 732 +ein 730 +se 730 +" 720 +ng 709 +_i 706 +sc 683 +sch 681 +it 673 +der_ 652 +h_ 651 +ch_ 642 +S 630 +le 609 +p 609 +ä 607 +ü 603 +au 603 +v 602 +che 599 +_w 596 +d_ 585 +die 576 +_di 572 +m_ 562 +_die 559 +el 548 +_S 540 +_der 529 +li 527 +_der_ 523 +si 515 +al 514 +ns 507 +on 501 +or 495 +ti 490 +ten 487 +ht 486 +die_ 485 +_die_ 483 +D 479 +rt 478 +nd_ 476 +_u 470 +nt 468 +A 466 +in_ 464 +den 461 +cht 447 +und 443 +me 440 +_z 429 +ung 426 +ll 423 +_un 421 +_ei 419 +_n 415 +hr 412 +ine 412 +_A 408 +_ein 405 +ar 404 +ra 403 +_v 400 +_g 400 +as 395 +zu 392 +et 389 +em 385 +_D 380 +eine 376 +gen 376 +g_ 376 +da 368 +we 366 +K 365 +lt 360 +B 354 +_" 353 +nde 349 +ni 347 +und_ 345 +E 345 +ur 345 +_m 342 +ri 341 +ha 340 +eh 339 +ten_ 338 +es_ 336 +_K 336 +_und 335 +ig 335 +_b 335 +hen 334 +_und_ 332 +_au 329 +_B 327 +_da 325 +_zu 324 +_in 322 +at 321 +us 318 +wi 307 +n, 305 +n,_ 304 +nn 304 +te_ 301 +eit 301 +_h 300 +ter 299 +M 298 +n. 295 +ß 294 +ng_ 289 +sche 289 +- 283 +rs 282 +den_ 282 +_si 280 +G 280 +im 278 +_ge 277 +chen 276 +rd 273 +_E 273 +n._ 270 +icht 270 +rn 268 +uf 267 +isch 264 +isc 264 +nen 263 +_in_ 262 +_M 260 +_er 257 +ich_ 255 +ac 253 +lic 252 +_G 252 +ber 252 +la 251 +vo 251 +eb 250 +ke 249 +F 248 +as_ 248 +hen_ 248 +ach 245 +en, 244 +ung_ 243 +lich 243 +ste 243 +en,_ 243 +_k 241 +ben 241 +_f 241 +en. 241 +_be 239 +it_ 239 +L 238 +_se 237 +mi 236 +ve 236 +na 236 +on_ 236 +P 235 +ss 234 +ist 234 +ö 234 +ht_ 233 +ru 233 +st_ 229 +_F 229 +ts 227 +ab 226 +W 226 +ol 225 +_eine 225 +hi 225 +so 224 +em_ 223 +"_ 223 +ren 222 +en._ 221 +chen_ 221 +R 221 +ta 221 +ere 220 +ische 219 +ers 218 +ert 217 +_P 217 +tr 217 +ed 215 +ze 215 +eg 215 +ens 215 +ür 213 +ah 212 +_vo 212 +ne_ 211 +cht_ 210 +uc 209 +_wi 209 +nge 208 +lle 208 +fe 207 +_L 207 +ver 206 +hl 205 +V 204 +ma 203 +wa 203 +auf 201 +H 198 +_W 195 +T 195 +nte 193 +uch 193 +l_ 192 +sei 192 +nen_ 190 +u_ 189 +_den 189 +_al 189 +_V 188 +t. 188 +lte 187 +ut 186 +ent 184 +sich 183 +sic 183 +il 183 +ier 182 +am 181 +gen_ 180 +sen 179 +fü 178 +um 178 +t._ 177 +f_ 174 +he_ 174 +ner 174 +nst 174 +ls 174 +_sei 173 +ro 173 +ir 173 +ebe 173 +mm 173 +ag 172 +ern 169 +t,_ 169 +t, 169 +eu 169 +ft 168 +icht_ 167 +hre 167 +Be 166 +nz 165 +nder 165 +_T 164 +_den_ 164 +iche 163 +tt 163 +zu_ 162 +and 162 +J 161 +rde 160 +rei 160 +_we 159 +_H 159 +ige 159 +_Be 158 +rte 157 +hei 156 +das 155 +aus 155 +che_ 154 +_das 154 +_zu_ 154 +tz 154 +_ni 153 +das_ 153 +_R 153 +N 153 +des 153 +_ve 153 +_J 152 +I 152 +_das_ 152 +men 151 +_so 151 +_ver 151 +_auf 150 +ine_ 150 +_ha 150 +rg 149 +ind 148 +eben 148 +kt 147 +mit 147 +_an 147 +her 146 +Ge 146 +Sc 145 +_sich 145 +U 145 +Sch 145 +_sic 145 +end 145 +Di 144 +abe 143 +ck 143 +sse 142 +ür_ 142 +ell 142 +ik 141 +o_ 141 +nic 141 +nich 141 +sa 141 +_fü 140 +hn 140 +zi 140 +no 140 +nicht 140 +im_ 139 +von_ 139 +von 139 +_nic 139 +_nich 139 +eine_ 139 +oc 138 +wei 138 +io 138 +schen 138 +gt 138 diff --git a/scratch/german-comments/text_cat/text_cat b/scratch/german-comments/text_cat/text_cat new file mode 100755 index 000000000..6c6b0d1d1 --- /dev/null +++ b/scratch/german-comments/text_cat/text_cat @@ -0,0 +1,229 @@ +#!/usr/bin/perl -w +# © Gertjan van Noord, 1997. +# mailto:vannoord@let.rug.nl + +use strict; +use vars qw($opt_d $opt_f $opt_h $opt_i $opt_l $opt_n $opt_s $opt_t $opt_v $opt_u $opt_a); +use Getopt::Std; +use Benchmark; + +my $non_word_characters='0-9\s'; + +# OPTIONS +getopts('a:d:f:hi:lnst:u:v'); + +# defaults: set $opt_X unless already defined (Perl Cookbook p. 6): +$opt_a ||= 10; +$opt_d ||= '/users1/vannoord/Perl/TextCat/LM'; +$opt_f ||= 0; +$opt_t ||= 400; +$opt_u ||= 1.05; + +sub help { + print <<HELP +Text Categorization. Typically used to determine the language of a +given document. + +Usage +----- + +* print help message: + +$0 -h + +* for guessing: + +$0 [-a Int] [-d Dir] [-f Int] [-i N] [-l] [-t Int] [-u Int] [-v] + + -a the program returns the best-scoring language together + with all languages which are $opt_u times worse (cf option -u). + If the number of languages to be printed is larger than the value + of this option (default: $opt_a) then no language is returned, but + instead a message that the input is of an unknown language is + printed. Default: $opt_a. + -d indicates in which directory the language models are + located (files ending in .lm). Currently only a single + directory is supported. Default: $opt_d. + -f Before sorting is performed the Ngrams which occur this number + of times or less are removed. This can be used to speed up + the program for longer inputs. For short inputs you should use + -f 0. + Default: $opt_f. + -i N only read first N lines + -l indicates that input is given as an argument on the command line, + e.g. text_cat -l "this is english text" + Cannot be used in combination with -n. + -s Determine language of each line of input. Not very efficient yet, + because language models are re-loaded after each line. + -t indicates the topmost number of ngrams that should be used. + If used in combination with -n this determines the size of the + output. If used with categorization this determines + the number of ngrams that are compared with each of the language + models (but each of those models is used completely). + -u determines how much worse result must be in order not to be + mentioned as an alternative. Typical value: 1.05 or 1.1. + Default: $opt_u. + -v verbose. Continuation messages are written to standard error. + +* for creating new language model, based on text read from standard input: + +$0 -n [-v] + + -v verbose. Continuation messages are written to standard error. + + +HELP +} + +if ($opt_h) { help(); exit 0; }; + +if ($opt_n) { + my %ngram=(); + my @result = create_lm(input(),\%ngram); + print join("\n",map { "$_\t $ngram{$_}" ; } @result),"\n"; +} elsif ($opt_l) { + classify($ARGV[0]); +} elsif ($opt_s) { + while (<>) { + chomp; + classify($_); + } +} else { + classify(input()); +} + +# CLASSIFICATION +sub classify { + my ($input)=@_; + my %results=(); + my $maxp = $opt_t; + # open directory to find which languages are supported + opendir DIR, "$opt_d" or die "directory $opt_d: $!\n"; + my @languages = sort(grep { s/\.lm// && -r "$opt_d/$_.lm" } readdir(DIR)); + closedir DIR; + @languages or die "sorry, can't read any language models from $opt_d\n" . + "language models must reside in files with .lm ending\n"; + + + # create ngrams for input. Note that hash %unknown is not used; + # it contains the actual counts which are only used under -n: creating + # new language model (and even then they are not really required). + my @unknown=create_lm($input); + # load model and count for each language. + my $language; + my $t1 = new Benchmark; + foreach $language (@languages) { + # loads the language model into hash %$language. + my %ngram=(); + my $rang=1; + open(LM,"$opt_d/$language.lm") || die "cannot open $language.lm: $!\n"; + while (<LM>) { + chomp; + # only use lines starting with appropriate character. Others are + # ignored. + if (/^[^$non_word_characters]+/o) { + $ngram{$&} = $rang++; + } + } + close(LM); + #print STDERR "loaded language model $language\n" if $opt_v; + + # compares the language model with input ngrams list + my ($i,$p)=(0,0); + while ($i < @unknown) { + if ($ngram{$unknown[$i]}) { + $p=$p+abs($ngram{$unknown[$i]}-$i); + } else { + $p=$p+$maxp; + } + ++$i; + } + #print STDERR "$language: $p\n" if $opt_v; + + $results{$language} = $p; + } + print STDERR "read language models done (" . + timestr(timediff(new Benchmark, $t1)) . + ".\n" if $opt_v; + my @results = sort { $results{$a} <=> $results{$b} } keys %results; + + print join("\n",map { "$_\t $results{$_}"; } @results),"\n" if $opt_v; + my $a = $results{$results[0]}; + + my @answers=(shift(@results)); + while (@results && $results{$results[0]} < ($opt_u *$a)) { + @answers=(@answers,shift(@results)); + } + if (@answers > $opt_a) { + print "I don't know; " . + "Perhaps this is a language I haven't seen before?\n"; + } else { + print join(" or ", @answers), "\n"; + } +} + +# first and only argument is reference to hash. +# this hash is filled, and a sorted list (opt_n elements) +# is returned. +sub input { + my $read=""; + if ($opt_i) { + while(<>) { + if ($. == $opt_i) { + return $read . $_; + } + $read = $read . $_; + } + return $read; + } else { + local $/; # so it doesn't affect $/ elsewhere + undef $/; + $read = <>; # swallow input. + $read || die "determining the language of an empty file is hard...\n"; + return $read; + } +} + + +sub create_lm { + my $t1 = new Benchmark; + my $ngram; + ($_,$ngram) = @_; #$ngram contains reference to the hash we build + # then add the ngrams found in each word in the hash + my $word; + foreach $word (split("[$non_word_characters]+")) { + $word = "_" . $word . "_"; + my $len = length($word); + my $flen=$len; + my $i; + for ($i=0;$i<$flen;$i++) { + $$ngram{substr($word,$i,5)}++ if $len > 4; + $$ngram{substr($word,$i,4)}++ if $len > 3; + $$ngram{substr($word,$i,3)}++ if $len > 2; + $$ngram{substr($word,$i,2)}++ if $len > 1; + $$ngram{substr($word,$i,1)}++; + $len--; + } + } + ###print "@{[%$ngram]}"; + my $t2 = new Benchmark; + print STDERR "count_ngrams done (". + timestr(timediff($t2, $t1)) .").\n" if $opt_v; + + # as suggested by Karel P. de Vos, k.vos@elsevier.nl, we speed up + # sorting by removing singletons + map { my $key=$_; if ($$ngram{$key} <= $opt_f) + { delete $$ngram{$key}; }; } keys %$ngram; + #however I have very bad results for short inputs, this way + + + # sort the ngrams, and spit out the $opt_t frequent ones. + # adding `or $a cmp $b' in the sort block makes sorting five + # times slower..., although it would be somewhat nicer (unique result) + my @sorted = sort { $$ngram{$b} <=> $$ngram{$a} } keys %$ngram; + splice(@sorted,$opt_t) if (@sorted > $opt_t); + print STDERR "sorting done (" . + timestr(timediff(new Benchmark, $t2)) . + ").\n" if $opt_v; + return @sorted; +} diff --git a/scratch/german-comments/text_cat/version b/scratch/german-comments/text_cat/version new file mode 100644 index 000000000..e6ba9d571 --- /dev/null +++ b/scratch/german-comments/text_cat/version @@ -0,0 +1,2 @@ +1.10 + |