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#include "tokenizer.h"
#include "Parameters.h"
#include <memory>
#include <vector>
#include <cctype>
#include <cstring>
#ifdef TOKENIZER_NAMESPACE
using namespace TOKENIZER_NAMESPACE ;
#endif
void
usage(const char *path)
{
std::cerr << "Usage: " << path << "[-{v|x|p|a|e|s|u|n|N]* [LL] [-{c|o} PATH]* INFILE*" << std::endl;
std::cerr << " -a -- aggressive hyphenization" << std::endl;
std::cerr << " -b -- drop bad bytes" << std::endl;
std::cerr << " -c DIR -- config (pattern) file directory" << std::endl;
std::cerr << " -d -- downcase" << std::endl;
std::cerr << " -D -- detokenize" << std::endl;
std::cerr << " -e -- do not escape entities during tokenization" << std::endl;
std::cerr << " -k -- narrow kana" << std::endl;
std::cerr << " -n -- narrow latin" << std::endl;
std::cerr << " -N -- normalize" << std::endl;
std::cerr << " -o OUT -- output file path" << std::endl;
std::cerr << " -p -- penn treebank style" << std::endl;
std::cerr << " -r -- refined contraction and quantity conjoining" << std::endl;
std::cerr << " -s -- super- and sub-script conjoining" << std::endl;
std::cerr << " -u -- disable url handling" << std::endl;
std::cerr << " -U -- unescape entities before tokenization, after detokenization" << std::endl;
std::cerr << " -v -- verbose" << std::endl;
std::cerr << " -w -- word filter" << std::endl;
std::cerr << " -x -- skip xml tag lines" << std::endl;
std::cerr << " -y -- skip all xml tags" << std::endl;
std::cerr << "Default is -c ., stdin, stdout." << std::endl;
std::cerr << "LL in en,fr,it affect contraction. LL selects nonbreaking prefix file" << std::endl;
std::cerr << "nonbreaking_prefix.LL is sought in getenv('TOKENIZER_SHARED_DIR')." << std::endl;
return;
}
std::string token_word(const std::string& in) {
int pos = -1;
int digits_prefixed = 0;
int nalpha = 0;
int len = in.size();
std::vector<char> cv;
int last_quirk = -1;
while (++pos < len) {
char ch = in.at(pos);
if (std::isdigit(ch)) {
if (digits_prefixed > 0) {
last_quirk = pos;
break;
}
digits_prefixed--;
cv.push_back(std::tolower(ch));
} else if (std::isalpha(ch)) {
if (digits_prefixed < 0)
digits_prefixed = -digits_prefixed;
cv.push_back(std::tolower(ch));
nalpha++;
} else {
if (digits_prefixed < 0)
digits_prefixed = -digits_prefixed;
last_quirk = pos;
if ((ch == '-' || ch == '\'') && pos != 0) {
cv.push_back(ch);
} else {
break;
}
}
}
if (last_quirk == pos || (digits_prefixed > 0 && nalpha == 0))
cv.clear(); // invalid word
return std::string(cv.begin(),cv.end());
}
int
copy_words(Tokenizer& tize, std::istream& ifs, std::ostream& ofs) {
int nlines = 0;
std::string line;
while (ifs.good() && std::getline(ifs,line)) {
if (line.empty()) continue;
std::vector<std::string> tokens(tize.tokens(line));
int count = 0;
for (auto& token: tokens) {
std::string word(token_word(token));
if (word.empty()) continue;
ofs << word << ' ';
count++;
}
if (count) {
ofs << std::endl;
nlines++;
}
}
return nlines;
}
int main(int ac, char **av)
{
int rc = 0;
Parameters params;
const char *prog = av[0];
bool next_cfg_p = false;
bool next_output_p = false;
bool detokenize_p = std::strstr(av[0],"detokenize") != 0;
while (++av,--ac) {
if (**av == '-') {
switch (av[0][1]) {
case 'a':
params.aggro_p = true;
break;
case 'b':
params.drop_bad_p = true;
break;
case 'c':
next_cfg_p = true;
break;
case 'd':
params.downcase_p = true;
break;
case 'D':
detokenize_p = true;
break;
case 'e':
params.escape_p = false;
break;
case 'h':
usage(prog);
exit(0);
case 'k':
params.narrow_kana_p = true;
break;
case 'n':
params.narrow_latin_p = true;
break;
case 'N':
params.normalize_p = true;
break;
case 'o':
next_output_p = true;
break;
case 'p':
params.penn_p = true;
break;
case 'r':
params.refined_p = true;
break;
case 's':
params.supersub_p = true;
break;
case 'U':
params.unescape_p = true;
break;
case 'u':
params.url_p = false;
break;
case 'v':
params.verbose_p = true;
break;
case 'w':
params.words_p = true;
break;
case 'x':
params.detag_p = true;
break;
case 'y':
params.alltag_p = true;
break;
case 'l':
// ignored
break;
default:
std::cerr << "Unknown option: " << *av << std::endl;
::exit(1);
}
} else if (params.lang_iso.empty() && strlen(*av) == 2) {
params.lang_iso = *av;
} else if (next_output_p) {
next_output_p = false;
params.out_path = *av;
} else if (next_cfg_p) {
next_cfg_p = false;
params.cfg_path = *av;
} else {
params.args.push_back(std::string(*av));
}
}
if (!params.cfg_path) {
params.cfg_path = getenv("TOKENIZER_SHARED_DIR");
}
if (!params.cfg_path) {
if (!::access("../share/.",X_OK)) {
if (!::access("../share/moses/.",X_OK)) {
params.cfg_path = "../share/moses";
} else {
params.cfg_path = "../share";
}
} else if (!::access("./scripts/share/.",X_OK)) {
params.cfg_path = "./scripts/share";
} else if (!::access("./nonbreaking_prefix.en",R_OK)) {
params.cfg_path = ".";
} else {
const char *slash = std::strrchr(prog,'/');
if (slash) {
std::string cfg_dir_str(prog,slash-prog);
std::string cfg_shr_str(cfg_dir_str);
cfg_shr_str.append("/shared");
std::string cfg_mos_str(cfg_shr_str);
cfg_mos_str.append("/moses");
if (!::access(cfg_mos_str.c_str(),X_OK)) {
params.cfg_path = strdup(cfg_mos_str.c_str());
} else if (!::access(cfg_shr_str.c_str(),X_OK)) {
params.cfg_path = strdup(cfg_shr_str.c_str());
} else if (!::access(cfg_dir_str.c_str(),X_OK)) {
params.cfg_path = strdup(cfg_dir_str.c_str());
}
}
}
}
if (params.cfg_path) {
if (params.verbose_p) {
std::cerr << "config path: " << params.cfg_path << std::endl;
}
Tokenizer::set_config_dir(std::string(params.cfg_path));
}
std::unique_ptr<std::ofstream> pofs = 0;
if (!params.out_path.empty()) {
pofs.reset(new std::ofstream(params.out_path.c_str()));
}
std::ostream& ofs(pofs ? *pofs : std::cout);
if (params.lang_iso.empty())
params.lang_iso = "en";
Tokenizer tize(params);
tize.init();
size_t nlines = 0;
if (params.words_p) {
if (params.args.empty()) {
nlines += copy_words(tize,std::cin,ofs);
} else {
for (std::string& arg : params.args) {
try {
std::ifstream ifs(arg.c_str());
nlines += copy_words(tize,ifs,ofs);
} catch (...) {
std::cerr << "Exception extracting words from path " << arg << std::endl;
}
}
}
} else if (params.args.empty()) {
if (detokenize_p) {
nlines = tize.detokenize(std::cin,ofs);
} else {
nlines = tize.tokenize(std::cin,ofs);
}
} else {
for (std::string& arg : params.args) {
try {
std::ifstream ifs(arg.c_str());
if (detokenize_p) {
nlines = tize.detokenize(ifs,ofs);
} else {
nlines = tize.tokenize(ifs,ofs);
}
} catch (...) {
std::cerr << "Exception tokenizing from path " << arg << std::endl;
}
}
}
if (params.verbose_p)
std::cerr << "%%% " << nlines << " lines." << std::endl;
return rc;
}
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