//////////////////////////////////////////////////////////////////
//
//	getword.cpp
//
//	Started by Jeff Ondich on 4/1/98
//	Last modified 9/16/99
//
//	This program retrieves words from standard input
//	until reaching "end of file."  You can run this
//	in two ways:
//
//	(1)		getword < somefile.txt
//
//	(2)		getword
//
//	In the second case, you will type the input.  You
//	can type as many lines as you like.  To terminate
//	the input, type CTRL-D at the start of a new line.
//
//////////////////////////////////////////////////////////////////

#include	<iostream>
#include	<string>

bool GetWord( string& word );

int main( void )
{
	string		myWord;
	
	while( GetWord( myWord ) )
	{
		cout << myWord << endl;
	}

	return( 0 );
}



//////////////////////////////////////////////////////////////////
//
//	GetWord retrieves the next word from standard input (cin),
//	returning true if there is a word remaining in the input,
//	and false if not.  In the former case, the word is
//	returned via the reference parameter "word".
//
//	GetWord defines a "word" to be any contiguous block of 
//	letters, hyphens, and apostrophes that starts with a
//	letter.  Thus, "don't" and "hocus-pocus" are both
//	considered words (as they should be), but so is
//	"Q--'--".  Defining "word" better than this is
//	possible, but complicated.
//
//	We'll talk about how GetWord works some time in class.
//
//////////////////////////////////////////////////////////////////

bool GetWord( string& word )
{
	char	c;
	
	// Scan through the text until we find a letter.

	while( cin.get(c)  &&  !isalpha(c) )
	{
		// Just looping. There's not supposed to be anything
		// here in the loop body.  All the work gets done
		// in the loop condition.
	}


	// If we reached the end of the file without finding
	// a word, return false.

	if( !cin )
		return( false );


	// Otherwise, build the word one character at a time
	// and return true.

	word = c;
	while( cin.get(c)  &&  (isalpha(c) || c == '-' || c == '\'') )
	{
		word = word + c;
	}
	
	return( true );
}