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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <inttypes.h>
#include <iostream>
#include <fstream>
#include <vespa/fsa/base64.h>
#include <vespa/fsa/fsa.h>
#include <vespa/fsa/automaton.h>
using namespace fsa;
enum FSA_Input_Format {
OUTPUT_UNDEF,
OUTPUT_TEXT,
OUTPUT_TEXT_EMPTY,
OUTPUT_TEXT_NUM,
OUTPUT_BINARY,
OUTPUT_BINARY_RAW,
OUTPUT_PHASH,
OUTPUT_DOT
};
void error(const char *name, const char *errormsg = NULL)
{
if(errormsg!=NULL){
fprintf(stderr,"%s: %s\n",name,errormsg);
}
}
void usage(const char *name, const char *errormsg = NULL)
{
error(name,errormsg);
fprintf(stderr,"usage:\n");
fprintf(stderr," %s [OPTIONS] fsafile\n",name);
fprintf(stderr,"\n");
fprintf(stderr," Valid options are:\n");
fprintf(stderr," -h display this help\n");
fprintf(stderr," -b use binary output format with Base64 encoded info\n");
fprintf(stderr," -B use binary output format with raw info\n");
fprintf(stderr," -e use text output format with no info (default)\n");
fprintf(stderr," -n use text output format with (unsigned) numerical info\n");
fprintf(stderr," -t use text input format\n");
fprintf(stderr," -p use perfect hash value instead of meta info (text output)\n");
fprintf(stderr," -d output dot format\n");
fprintf(stderr," -V display version number\n");
fprintf(stderr,"\n");
}
void version()
{
std::cout << "fsadump "
<< FSA::VER/1000000 << "." << (FSA::VER/1000)%1000 << "." << FSA::VER%1000;
if(FSA::VER != FSA::libVER()){
std::cout << " (library "
<< FSA::libVER()/1000000 << "." << (FSA::libVER()/1000)%1000 << "." << FSA::libVER()%1000
<< ")";
}
std::cout << std::endl;
}
namespace {
template <typename T>
T
read_unaligned(const void* data)
{
T value;
memcpy(&value, data, sizeof(T));
return value;
}
}
int main(int argc, char** argv)
{
FSA_Input_Format format = OUTPUT_UNDEF;
const char *input_file;
int opt;
extern int optind;
while((opt=getopt(argc,argv,"ebBhntpdV")) != -1){
switch(opt){
case 'b':
format = OUTPUT_BINARY;
break;
case 'B':
format = OUTPUT_BINARY_RAW;
break;
case 'h':
usage(argv[0]);
return 0;
case 'V':
version();
return 0;
case 't':
format = OUTPUT_TEXT;
break;
case 'n':
format = OUTPUT_TEXT_NUM;
break;
case 'e':
format = OUTPUT_TEXT_EMPTY;
break;
case 'p':
format = OUTPUT_PHASH;
break;
case 'd':
format = OUTPUT_DOT;
break;
case '?':
usage(argv[0],"unrecognized option");
return 1;
}
}
if(optind!=argc-1){
usage(argv[0],"required parameter(s) missing");
return 1;
}
if(format==OUTPUT_UNDEF) // use default format (warning?)
format=OUTPUT_TEXT_EMPTY;
input_file = argv[optind];
FSA fsa(input_file);
if(!fsa.isOk()){
std::cerr << "Failed to open fsa file (" << input_file << ")" << std::endl;
return 1;
}
std::string meta,temp;
uint32_t num_meta;
uint32_t lines=0;
if(format!=OUTPUT_DOT){
for(FSA::iterator it(fsa); it!=fsa.end(); ++it){
switch(format){
case OUTPUT_BINARY:
temp.assign((const char *)(it->data()),it->dataSize());
Base64::encode(temp,meta);
std::cout << it->str() << '\0' << meta << '\0';
break;
case OUTPUT_BINARY_RAW:
meta.assign((const char *)(it->data()),it->dataSize());
std::cout << it->str() << '\0' << meta << '\0';
break;
case OUTPUT_TEXT:
meta.assign((const char *)(it->data()),it->dataSize());
if(meta.size()>0 && meta[meta.size()-1]==0){
meta.resize(meta.size()-1);
}
std::cout << it->str() << '\t' << meta << '\n';
break;
case OUTPUT_TEXT_NUM:
switch(it->dataSize()){
case 1:
num_meta = *((const uint8_t*)it->data());
break;
case 2:
case 3:
num_meta = read_unaligned<uint16_t>(it->data());
break;
case 4:
default:
num_meta = read_unaligned<uint32_t>(it->data());
break;
}
std::cout << it->str() << '\t' << num_meta << '\n';
break;
case OUTPUT_PHASH:
std::cout << it->str() << '\t' << lines << '\n';
break;
case OUTPUT_TEXT_EMPTY:
std::cout << it->str() << '\n';
break;
default:
assert(0);
break;
}
++lines;
}
}
else {
fsa.printDot();
}
return 0;
}
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