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compact_lang_det_batch.cc
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compact_lang_det_batch.cc
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// Copyright 2013 Google Inc. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
// Author: Marco Lui <[email protected]>
// based very closely on compact_lang_det_test.cc by [email protected] (Dick Sites)
//
// Test: Read each line as a path and do detection thereon
#include <math.h> // for sqrt
#include <stdlib.h> // for exit
#include <stdio.h>
#include <string.h>
#include <sys/mman.h> // for mmap
#include <unistd.h> // for getline
#include <fcntl.h>
#include <string>
#include "cld2tablesummary.h"
#include "compact_lang_det_impl.h"
#include "debug.h"
#include "integral_types.h"
#include "lang_script.h"
#include "utf8statetable.h"
namespace CLD2 {
using namespace std;
// Scaffolding
typedef int32 Encoding;
static const Encoding UNKNOWN_ENCODING = 0;
// Linker supplies the right tables; see ScoringTables compact_lang_det_impl.cc
// These are here JUST for printing versions
extern const UTF8PropObj cld_generated_CjkUni_obj;
extern const CLD2TableSummary kCjkDeltaBi_obj;
extern const CLD2TableSummary kDistinctBiTable_obj;
extern const CLD2TableSummary kQuad_obj;
extern const CLD2TableSummary kDeltaOcta_obj;
extern const CLD2TableSummary kDistinctOcta_obj;
extern const CLD2TableSummary kOcta2_obj;
extern const short kAvgDeltaOctaScore[];
bool FLAGS_plain = false;
bool FLAGS_dbgscore = true;
// Convert GetTimeOfDay output to 64-bit usec
static inline uint64 Microseconds(const struct timeval& t) {
// Convert to (uint64) microseconds, not (double) seconds.
return t.tv_sec * 1000000ULL + t.tv_usec;
}
#define LF 0x0a
#define CR 0x0d
bool Readline(FILE* infile, char* buffer) {
char* p = fgets(buffer, 64 * 1024, infile);
if (p == NULL) {
return false;
}
int len = strlen(buffer);
// trim CR LF
if (buffer[len-1] == LF) {buffer[--len] = '\0';}
if (buffer[len-1] == CR) {buffer[--len] = '\0';}
return true;
}
bool IsComment(char* buffer) {
int len = strlen(buffer);
if (len == 0) {return true;}
if (buffer[0] == '#') {return true;}
if (buffer[0] == ' ') {return true;} // Any leading space is comment
return false;
}
void DumpExtLang(int flags,
Language summary_lang,
Language* language3, int* percent3,
double* normalized_score3,
int text_bytes, bool is_reliable, int in_size) {
char temp[160];
char* tp = temp;
int tp_left = sizeof(temp);
snprintf(tp, tp_left, "ExtLanguage");
if (language3[0] != UNKNOWN_LANGUAGE) {
tp = temp + strlen(temp);
tp_left = sizeof(temp) - strlen(temp);
snprintf(tp, tp_left, " %s(%d%% %3.0fp)",
LanguageName(language3[0]),
percent3[0],
normalized_score3[0]);
}
if (language3[1] != UNKNOWN_LANGUAGE) {
tp = temp + strlen(temp);
tp_left = sizeof(temp) - strlen(temp);
snprintf(tp, tp_left, ", %s(%d%% %3.0fp)",
LanguageName(language3[1]),
percent3[1],
normalized_score3[1]);
}
if (language3[2] != UNKNOWN_LANGUAGE) {
tp = temp + strlen(temp);
tp_left = sizeof(temp) - strlen(temp);
snprintf(tp, tp_left, ", %s(%d%% %3.0fp)",
LanguageName(language3[2]),
percent3[2],
normalized_score3[2]);
}
if (text_bytes > 9999) {
tp = temp + strlen(temp);
tp_left = sizeof(temp) - strlen(temp);
snprintf(tp, tp_left, ", %d/%d KB of non-tag letters",
text_bytes >> 10, in_size >> 10);
} else {
tp = temp + strlen(temp);
tp_left = sizeof(temp) - strlen(temp);
snprintf(tp, tp_left, ", %d/%d bytes of non-tag letters",
text_bytes, in_size);
}
tp = temp + strlen(temp);
tp_left = sizeof(temp) - strlen(temp);
snprintf(tp, tp_left, ", Summary: %s%s",
LanguageName(summary_lang),
is_reliable ? "" : "*");
printf("%s\n", temp);
}
void DumpLanguages(Language summary_lang,
Language* language3, int* percent3,
int text_bytes, bool is_reliable, int in_size) {
// fprintf(stderr, "</span>\n\n");
int total_percent = 0;
if (language3[0] != UNKNOWN_LANGUAGE) {
fprintf(stderr, "\n<br>Languages %s(%d%%)",
LanguageName(language3[0]),
percent3[0]);
total_percent += percent3[0];
} else {
fprintf(stderr, "\n<br>Languages ");
}
if (language3[1] != UNKNOWN_LANGUAGE) {
fprintf(stderr, ", %s(%d%%)",
LanguageName(language3[1]),
percent3[1]);
total_percent += percent3[1];
}
if (language3[2] != UNKNOWN_LANGUAGE) {
fprintf(stderr, ", %s(%d%%)",
LanguageName(language3[2]),
percent3[2]);
total_percent += percent3[2];
}
fprintf(stderr, ", other(%d%%)", 100 - total_percent);
if (text_bytes > 9999) {
fprintf(stderr, ", %d/%d KB of non-tag letters",
text_bytes >> 10, in_size >> 10);
} else {
fprintf(stderr, ", %d/%d bytes of non-tag letters",
text_bytes, in_size);
}
fprintf(stderr, ", Summary: %s%s ",
LanguageName(summary_lang),
is_reliable ? "" : "*");
fprintf(stderr, "<br>\n");
}
int main(int argc, char** argv) {
int flags = 0;
bool get_vector = false;
for (int i = 1; i < argc; ++i) {
if (strcmp(argv[i], "--scoreasquads") == 0) {flags |= kCLDFlagScoreAsQuads;}
if (strcmp(argv[i], "--cr") == 0) {flags |= kCLDFlagCr;}
if (strcmp(argv[i], "--verbose") == 0) {flags |= kCLDFlagVerbose;}
if (strcmp(argv[i], "--echo") == 0) {flags |= kCLDFlagEcho;}
if (strcmp(argv[i], "--vector") == 0) {get_vector = true;}
}
const char* tldhint = "";
Encoding enchint = UNKNOWN_ENCODING;
Language langhint = UNKNOWN_LANGUAGE;
int bytes_consumed;
int bytes_filled;
int error_char_count;
bool is_reliable;
char* buffer = new char[10000000]; // Max 10MB of input for this test program
// Full-blown flag-bit and hints interface
bool allow_extended_lang = true;
Language plus_one = UNKNOWN_LANGUAGE;
bool ignore_7bit = false;
// Detect language
Language summary_lang = UNKNOWN_LANGUAGE;
Language language3[3];
int percent3[3];
double normalized_score3[3];
ResultChunkVector resultchunkvector;
bool is_plain_text = FLAGS_plain;
int text_bytes;
CLDHints cldhints = {NULL, tldhint, enchint, langhint};
int fd;
unsigned textlen, pathlen;
char *path = NULL, *text = NULL;
size_t path_size = 4096;
// Main Loop
while ((pathlen = getline(&path, &path_size, stdin)) != -1){
path[pathlen-1] = '\0';
if ((fd = open(path, O_RDONLY))==-1) {
fprintf(stderr, "unable to open %s\n", path);
exit(-1);
}
textlen = lseek(fd, 0, SEEK_END);
text = (char *) mmap(NULL, textlen, PROT_READ | PROT_WRITE, MAP_PRIVATE, fd, 0);
//lang = identify(lid, text, textlen);
summary_lang = CLD2::DetectLanguageSummaryV2(
text,
textlen,
is_plain_text,
&cldhints,
allow_extended_lang,
flags,
plus_one,
language3,
percent3,
normalized_score3,
get_vector ? &resultchunkvector : NULL,
&text_bytes,
&is_reliable);
if (get_vector) {
DumpResultChunkVector(stderr, buffer, &resultchunkvector);
}
//DumpExtLang(flags, summary_lang, language3, percent3, normalized_score3,
// text_bytes, is_reliable, textlen);
/*
printf(" SummaryLanguage %s%s at %u of %d, %s\n",
LanguageName(summary_lang),
is_reliable ? "" : "(un-reliable)",
bytes_consumed,
textlen,
path);
*/
printf("%s,%d,%s,%s\n", path, textlen, LanguageCode(summary_lang), LanguageName(summary_lang));
/* no need to munmap if textlen is 0 */
if (textlen && (munmap(text, textlen) == -1)) {
fprintf(stderr, "failed to munmap %s of length %d \n", path, textlen);
exit(-1);
}
close(fd);
}
return 0;
}
} // End namespace CLD2
int main(int argc, char *argv[]) {
return CLD2::main(argc, argv);
}