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hash_regression.cc
/************************************************************************/
/* */
/* Centre for Speech Technology Research */
/* University of Edinburgh, UK */
/* Copyright (c) 1996,1997 */
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/* the following conditions: */
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/* conditions and the following disclaimer. */
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/* */
/************************************************************************/
/* Author: Richard Caley (rjc@cstr.ed.ac.uk) */
/* Date: Wed Apr 9 1997 */
/************************************************************************/
/* */
/* Simple inverted index as a test of the hash type. */
/* */
/************************************************************************/
#include <iostream>
#include <fstream>
#include "EST_String.h"
#include "EST_Token.h"
#include "EST_THash.h"
#define LINE_LENGTH 1000
EST_Regex RX_Word("[A-Z]?[a-z]+\\('[a-z]+\\)?");
#define WORD "Latitude"
int
main(int argc, const char *argv[])
{
EST_TStringHash<int> places(10);
int line_no = 1;
EST_TokenStream file;
if (argc != 2)
return 1;
file.open(argv[1]);
file.set_WhiteSpaceChars("");
file.set_SingleCharSymbols("\n");
file.set_PunctuationSymbols("");
file.set_PrePunctuationSymbols("");
while(! file.eof())
{
EST_String line;
line = (EST_String)file.get();
if (file.eof())
break;
if (line == "\n")
line_no++;
int p=0, len;
while((p = line.search(RX_Word, len, p)) >= 0)
{
EST_String word(line.at(p, len));
places.add_item(word, line_no);
p += len;
}
}
cout << WORD " is on line " << places.val(WORD) << "\n";
places.dump(cout);
return 0;
}
EST_Regex
Definition EST_Regex.h:55
EST_String
Definition EST_String.h:70
EST_String::search
int search(const char *s, int len, int &mlen, int pos=0) const
Find a substring.
Definition EST_String.h:334
EST_String::at
EST_String at(int from, int len=0) const
Return part at position.
Definition EST_String.h:302
EST_TStringHash
Definition EST_THash.h:281
EST_TokenStream
Definition EST_Token.h:235
EST_TokenStream::eof
int eof()
end of file
Definition EST_Token.h:356
EST_TokenStream::set_SingleCharSymbols
void set_SingleCharSymbols(const EST_String &sc)
set which characters are to be treated as single character symbols
Definition EST_Token.h:338
EST_TokenStream::set_PrePunctuationSymbols
void set_PrePunctuationSymbols(const EST_String &ps)
set which characters are to be treated as (post) punctuation
Definition EST_Token.h:344
EST_TokenStream::set_PunctuationSymbols
void set_PunctuationSymbols(const EST_String &ps)
set which characters are to be treated as (post) punctuation
Definition EST_Token.h:341
EST_TokenStream::open
int open(const EST_String &filename)
open a \Ref{EST_TokenStream} for a file.
Definition EST_Token.cc:200
EST_TokenStream::set_WhiteSpaceChars
void set_WhiteSpaceChars(const EST_String &ws)
set which characters are to be treated as whitespace
Definition EST_Token.h:335
EST_TokenStream::get
EST_TokenStream & get(EST_Token &t)
get next token in stream
Definition EST_Token.cc:486