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main.c
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main.c
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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "db.h"
#include "handle.h"
#include "time.h"
#include "hashtable.h"
#define TRUE 1
#define FALSE 0
#define MAX_WORDS 40
#define MAX_LETTERS 20
#define DEBUG TRUE
// Global Variables
char user_input[80];
char wholeline[80];
int number_of_words;
char words[MAX_WORDS][MAX_LETTERS]; //
char current_user_name[20]="unknown";
int current_user_id = 0;
int gender_code = 0;
int code;
int result;
char value[20];
char key[20];
typedef struct test {
char* line[80];
char* template2[80];
char* function_name[80];
int parameter1;
int parameter2;
int parameter3;
//int code;
} template_info_type;
// char current_time[MAX_STRING_LEN];
// char current_time[80];
int current_time;
// Experimental
#if 0
typedef struct {
char* input[80];
char* words[80][80];
char* first_name[80];
int gender_code;
} user_info_type;
#endif
// Prototypes
void get_string(void);
void parse(void);
int isword(char*);
int is_nonsense_word(char*);
int isconsonant(char);
int isvowel(char);
void handle_help(void);
int tokenize(char*, char*, char);
int separate_words(char*, char[MAX_WORDS][MAX_LETTERS]);
int template_search(char*, template_info_type*);
int check_gender_by_name(char*);
//void get_time(char*);
int get_time(void);
//int isvalidname(char*);
//-------------------------------------------------------
int main(void) {
char out[MAX_WORDS][MAX_LETTERS];
int n;
int result;
int same, token;
template_info_type template_info;
char key[80];
printf("type 'help' for a list of sentences I understand\r\n");
// THE MAIN LOOP
while(1) {
printf(">"); // user prompt
get_string(); // get user input
parse(); // separate the sentence into individual words
#if 1
// word substitutions
for(n=1; n<=number_of_words; n++) {
//if (strcmp(words[n],"does")==0) strcpy(words[n], "do");
if (strcmp(words[n],"has")==0) strcpy(words[n], "have");
if (strcmp(words[n],"are")==0) strcpy(words[n], "is");
if (strcmp(words[n],"wants")==0)strcpy(words[n], "want");
if (strcmp(words[n],"feels")==0)strcpy(words[n], "feel");
if (strcmp(words[n],"likes")==0)strcpy(words[n], "like");
if (strcmp(words[n],"i")==0) strcpy(words[n], current_user_name);
if (strcmp(words[n],"u")==0) strcpy(words[n], "you");
// if (strcmp(words[n],"you")==0) strcpy(words[n], "bot");
if (strcmp(words[n],"am")==0) strcpy(words[n], "is");
if (strcmp(words[n],"an")==0) strcpy(words[n], "a");
}
#endif
//---------------
#if 0
// Work in progress
// This is the code that makes use of template_search()
code = template_search(user_input, &template_info);
printf("\ncode: %d, template: %s, ", code, template_info.template2);
printf("\r\nfunction: %s\r", template_info.function_name);
if(template_info.parameter1 > 0) {
printf("\np1: %d\r\n", template_info.parameter1);
}
if(template_info.parameter2 > 0) {
printf("\np2: %d\r\n\n\n", template_info.parameter2);
}
continue;
#endif
//----------------
#if 0
// Does the user input = the template? If so, there are no wild cards
same = FALSE;
for(n=1; n<=number_of_words; n++) {
if(strcmp(words[n], out[n])==0) {
same=TRUE;
break;
}
}
#endif
//------------------
#if 0
// Experimental
token=0;
if(same==TRUE) {
if(strcmp(user_input, "what time is it")==0) token = 1;
else if(strcmp(user_input, "what is your name")==0) token = 2;
else if(strcmp(user_input, "hi")==0) token = 3;
else if(strcmp(user_input, "how are you")==0) token = 4;
else if(strcmp(user_input, "i am here")==0) token = 5;
}
switch(token) {
case 1:
printf("i dont have a watch\r\n ");
break;
case 2:
printf("joe king\r\n ");
break;
case 3:
printf("bye \r\n");
break;
case 4:
printf("could be worse \r\n");
break;
case 5:
printf("where is here? \r\n");
break;
}
//printf("%d ", token);
#endif
//----------------
#if 0
// experimenting with delays
current_time = get_time();
while (get_time() < current_time +5);
//printf("time: %d", current_time);
#endif
//------------------
// The main sentence processing starts here.
// Soon this will be replaced by using the templates in templates2.txt
if(number_of_words==1 &&
strcmp(words[1], "help")==0) {
handle_help();
}
// Log in?
// my name is ___
if(number_of_words==4 &&
strcmp(words[1],"my")==0 &&
strcmp(words[2],"name")==0 &&
strcmp(words[3],"is")==0) {
handle_login(words[4]);
continue;
}
if(number_of_words==1 &&
strcmp(words[1], "hi")==0) {
handle_greetings();
continue;
}
if(number_of_words==1 &&
strcmp(words[1], "hey")==0) {
handle_greetings();
continue;
}
if(number_of_words==1 &&
strcmp(words[1], "hello")==0) {
handle_greetings();
continue;
}
#if 0
// Logged in? If not, go no further. This can be disabled for testing purposes
if(current_user_id == 0) {
printf("what is your name?\r\n");
continue;
}
#endif
// - - - - MUST BE LOGGED IN TO GET PAST THIS POINT - - - - - - - - - - - - - - - - - -
#if 0 // this code is a mess
// Determine gender from the first name
// (known person) is male
if(db_get_id(words[1]) !=0 &&
strcmp(words[2],"is")==0 &&
strcmp(words[3],"male")==0 ) {
sprintf(key, "#%d > gender", current_user_id);
if(strcmp(words[1], current_user_name) == "unknown")
gender_code = 1;
db_add_pair(key, "male");
continue;
}
#endif
// my gender is male
if(number_of_words == 4 &&
strcmp(words[1],"my")==0 &&
strcmp(words[2],"gender")==0 &&
strcmp(words[3],"is")==0 &&
strcmp(words[4],"male")==0 ) {
sprintf(key, "#%d > gender", current_user_id);
gender_code = 1;
db_add_pair(key, "male");
continue;
}
// (known person) is female
if(db_get_id(words[1]) !=0 &&
strcmp(words[2],"is")==0 &&
strcmp(words[3],"female")==0 ) {
sprintf(key, "#%d > gender", current_user_id);
if(strcmp(words[1],current_user_name)== "unknown")
gender_code = 2;
db_add_pair(key, "female");
continue;
}
// my gender is female
if(number_of_words==4 &&
strcmp(words[1],"my")==0 &&
strcmp(words[2],"gender")==0 &&
strcmp(words[3],"is")==0 &&
strcmp(words[4],"female")==0 ) {
sprintf(key, "#%d > gender", current_user_id);
gender_code = 2;
db_add_pair(key, "female");
continue;
}
// CLASS (SUBSET OF)
// what is ___
if(number_of_words==3 &&
strcmp(words[1],"what")==0 &&
strcmp(words[2],"is")==0) {
handle_class_question(words[3]);
continue;
}
// what are ___
if(number_of_words==3 &&
strcmp(words[1],"what")==0 &&
strcmp(words[2],"are")==0) {
handle_class_question(words[3]);
continue;
}
// what is a ___
if(number_of_words==4 &&
strcmp(words[1],"what")==0 &&
strcmp(words[2],"is")==0 &&
strcmp(words[3],"a")==0) {
handle_class_question(words[4]);
continue;
}
// this needs to be placed before "___ is ___" and after "what is ___"
if(number_of_words==3 &&
strcmp(words[2],"is")==0) {
handle_attribute_statement(words[1],words[3]);
continue;
}
// a __ is a __
// ex: a cat is an animal
if(number_of_words==5 &&
strcmp(words[1],"a")==0 &&
strcmp(words[3],"is")==0 &&
strcmp(words[4],"a")==0
) {
handle_class_statement(words[2],words[5]);
continue;
}
if(number_of_words==4 &&
strcmp(words[2],"is")==0 &&
strcmp(words[3],"a")==0) {
handle_class_statement(words[1],words[4]);
continue;
}
if(number_of_words==3 &&
strcmp(words[2],"is")==0 ) {
handle_class_statement(words[1],words[3]);
continue;
}
// - - - - - - COLORS - - - - - - - - - - - - - - - -
//
// what color is ___
if(number_of_words==4 &&
strcmp(words[1],"what")==0 &&
strcmp(words[2],"color")==0&&
strcmp(words[3],"is")==0) {
handle_color_question(words[4]);
continue;
}
// is ___ <color>?
if(number_of_words==3 &&
strcmp(words[1],"is")==0 &&
db_root_check(words[3],"color")==FOUND) {
handle_color_confirmation_question(words[2],words[3]);
continue;
}
// ___ is <color>
// conditions: 3 words, middle word is "is"
if(number_of_words==3 &&
strcmp(words[2],"is")==0 &&
db_root_check(words[3],"color")==FOUND) {
handle_color_statement(words[1],words[3]);
continue;
}
// - - - - - - - - - - - - - - - - - - - - - -
// LOCATION
// where is ___
if(number_of_words==3 &&
strcmp(words[1],"where")==0 &&
strcmp(words[2],"is")==0) {
handle_location_question(words[3]);
continue;
}
// - - - - - - - - - - - - - - - - - - - - - -
// ABILITY
// can <subject> <action>
if(number_of_words==3 &&
strcmp(words[1],"can")==0 ) {
handle_ability_question(words[2],words[3]);
continue;
}
// - - - - - - - - - - - - - - - - - - - - - -
// rating
// Template: do you like <subject>
// Example: do you like beer
// else if(number_of_words==4 && strcmp(words[1],"do")==0 && strcmp(words[2],"you")==0 && strcmp(words[3],"like")==0 ){
// handle_rating_question();
// }
// Template: __ like __
// Example: i like beer
if(number_of_words==3 &&
strcmp(words[2],"like")==0) {
handle_rating_statement(words[1], words[3], "7");
continue;
}
// Template: <person> hate __
// Example: i hate beer
if(number_of_words==3 &&
strcmp(words[2],"hate")==0) {
handle_rating_statement(words[1], words[3], "0");
continue;
}
// <creature> love ___
// conditions: 3 words, middle word is "love"
if(number_of_words==3 &&
strcmp(words[2],"love")==0) {
handle_rating_statement(words[1], words[3], "10");
continue;
}
// ___ dont like ___
if(number_of_words==4 &&
strcmp(words[2],"dont")==0 &&
strcmp(words[3],"like")==0) {
handle_rating_statement(words[1], words[3], "3");
continue;
}
// Template: does <person> like <subject>
// Example: does fred like beer
if(number_of_words==4 &&
strcmp(words[1],"does")==0 &&
strcmp(words[3],"like")==0 ) {
handle_rating_question(words[2], words[4]);
continue;
}
// Template: list <class>
// Example: list action
if(number_of_words==2 &&
strcmp(words[1],"list")==0) {
handle_list_question(words[2]);
continue;
}
// - - - - - - - - - - - - - - - - - - - - - -
// "what is my name"
if(number_of_words==4 &&
strcmp(words[1],"what")==0 &&
strcmp(words[2],"is")==0 &&
strcmp(words[3],"my")==0 &&
strcmp(words[4],"name")==0) {
printf("%s\n",current_user_name);
continue;
}
// "what is my gender"
if(number_of_words==4 &&
strcmp(words[1],"what")==0 &&
strcmp(words[2],"is")==0 &&
strcmp(words[3],"my")==0 &&
strcmp(words[4],"gender")==0) {
switch(gender_code) {
case 1:
printf("male\n");
break;
case 2:
printf("female\n");
break;
case 0:
case 3:
printf("I don't know\n");
break;
}
continue;
}
// "say my name"
if(number_of_words==3 &&
strcmp(words[1],"say")==0 &&
strcmp(words[2],"my")==0 &&
strcmp(words[3],"name")==0) {
printf("%s\n",current_user_name);
continue;
}
// Log out
if(number_of_words==1 &&
strcmp(words[1],"bye")==0) {
printf("%talk to you later %s\r\n\r\n",current_user_name);
current_user_name[20]="unknown";
current_user_id = 0;
gender_code = 0;
continue;
}
// Get ID number
if(number_of_words==1 &&
strcmp(words[1],"id")==0) {
printf("%d\n",current_user_id);
continue;
}
// Get gender code
if(number_of_words==1 &&
strcmp(words[1],"g")==0) {
printf("%d\n",gender_code);
continue;
}
// Single word
if(number_of_words==1) {
sprintf(key, "%s > class", words[1]); // assemble a key
if(db_lookup(key, value) == FOUND) {
printf("That's a %s\n", value);
continue;
}
if(isword(words[1])==0) {
printf("%s is in my dictionary, but I'm not familiar with it\n", words[1]);
} else
printf("That's not in my dictionary\n");
continue;
}
// Nothing typed?
if(number_of_words==0) {
printf("You didn't type anything..\n");
continue;
}
// Default
printf("I'm not familiar with that kind of sentence\n");
continue;
// - - - - - -
// experimental
#if 0
switch(F) {
case:
HELP handle_help();
break;
case:
handle_ability_question();
break;
case:
handle_attribute_statement();
break;
case:
handle_class_question();
break;
case:
handle_class_statement();
break;
case:
handle_ability_question();
break;
case:
handle_color_confirmation_question();
break;
case:
handle_color_question();
break;
case:
handle_color_statement();
break;
case:
handle_def_question();
break;
case:
handle_def_statement();
break;
case:
handle_list_question();
break;
case:
handle_location_question();
break;
case:
handle_login();
break;
case:
handle_rating_question();
break;
case:
handle_rating_statement();
break;
}
#endif
// - - - - - -
} // main loop
return 0;
} // main
//-----------------------------------------------------------
void get_string(void) {
int position;
for(position = 0; position <= 78; position++) {
user_input[position] = getchar();
if(user_input[position]==10)break; // CR
if(user_input[position]==13)break; // LF
}
user_input[position] = 0;
}
//--------------------------------------------------------------
void parse(void) {
// input: user_input
// output: words, number_of_words
int position = 0;
int letter_position;
int word_position;
//while(1);
for(word_position=1; word_position < MAX_WORDS; word_position++) {
for(letter_position = 0; letter_position < MAX_LETTERS; letter_position++) {
// End of user input?
if(user_input[position]==0 || position >= 80) {
words[word_position][letter_position] = 0;
number_of_words = word_position;
return;
}
//end of word?
if(user_input[position]==' ') {
words[word_position][letter_position] = 0; // terminate the word
letter_position = 0; // probably not needed
position++; // skip over the space
break;
}
//
words[word_position][letter_position] = user_input[position];
position++;
}
}
}
//------------------------------------------------------------------
int isvowel(char c1) {
char vowels[6]="aeiouy";
int i;
for(i=0; i<6; i++) {
if(c1 == vowels[i])return 0;
}
return 1;
}
//---------------------------------------
int isconsonant(char c1) {
char consonants[20]="bcdfghjklmnpqrstvwxz";
int i;
for(i=0; i<20; i++) {
if(c1 == consonants[i]) return 0;
}
return 1;
}
//-----------------------------------------------------------------------
int is_nonsense_word(char* s1) {
//
// curently has trouble with: you, crackpot,apple,substance
//
//
// 3 vowels in a row?
int i,inarow;
int j;
char *list_nonsense[] = {"ch", "gh", "sc", "sp", "th", "ck", "pp", "tt"};
inarow=0;
for(i=0; i<80-3; i++) {
if(user_input[i]==0) break;
if(isvowel(user_input[i])==0) inarow++;
else inarow=0;
if(inarow>=4) break;
}
if(inarow>=3)printf(" 3 vowels in a row \n");
// replace all occurances of CH GH SC SP TH CK PP ST with vowels
for(i=0; i<80-3; i++) {
if(user_input[i]==0) break;
for (j=0; j<sizeof(list_nonsense); j++) {
if(strncmp(&user_input[i], "ch", 2))
strncpy(&user_input[i], "aa", 2);
}
}
// 3 consonants in a row?
inarow=0;
for(i=0; i<80-3; i++) {
if(user_input[i]==0) break;
if(isconsonant(user_input[i])==0) inarow++;
else inarow=0;
if(inarow>=4) break;
}
if(inarow>=4)printf(" that's jiberish\n");
}
//--------------------------------------------------------
int isword(char*word_to_lookup) {
FILE *general;
int result = 1;
char word_from_list[80];
char *status;
// open word list
general = fopen("word100k.txt","r");
if(general == NULL) {
printf("fopen failed while trying to open word100k.txt\n");
}
while(1) {
status = fgets(word_from_list,40,general);
if (status==0)break;
// remove the newline character
word_from_list[strlen(word_from_list)-1] = '\0';
if (strcmp(word_to_lookup, word_from_list) == 0) {
result = 0;
break;
}
}// end of while
fclose(general);
return result;
}
// --------------------------------------
void handle_login(char*name) {
int result, i;
int known=FALSE;
int new = TRUE;
char first_name[20], id_string[20];
char s2[20], value[20];
char key[80];
int id_number;
// Proceedure
//
// 1 is the person the current user?
// 2 is this person known? (search for first name in database)
// 3 if not known, create new entry in database
// 4 update user_id, user_name, gender)
//
////////////////////////////////////////////////////////////
// Step 1: check if already current user
if(strcmp(name, current_user_name)==0) {
printf("You told me that already\n");
known=TRUE;
return;
}
// Step #2
id_number = db_get_id(name);
if(id_number != 0) {
known=TRUE;
new = FALSE;
// get gender
sprintf(key,"#%d > gender", id_number);
result = db_lookup(key, value);
if(result != FOUND) {
gender_code=0;
}
if(strcmp(value, "male")==0) {
gender_code=1;
}
if(strcmp(value, "female")==0) {
gender_code=2;
}
} else {
known=FALSE;
}
// Step 3: add user to database
if(known==FALSE) {
// Get an id number
id_number = db_next_available_id();
// Add the following to the database
// #1 > class: person
// #1 > firstname:bob
// #1 > gender:male
snprintf (id_string, sizeof(id_string), "%d",id_number);
sprintf(key, "#%s > class", id_string);
db_add_pair(key, "person");
sprintf(key,"#%s > firstname", id_string);
db_add_pair(key, name);
sprintf(key,"#%s > gender", id_string);
gender_code = check_gender_by_name(name);
switch(gender_code) {
case 1:
db_add_pair(key, "male");
break;
case 2:
db_add_pair(key, "female");
}
known=TRUE;
new = TRUE;
}
// Step 4:
strcpy(current_user_name, name);
current_user_id = id_number;
if(new == TRUE) {
printf("hello %s\n", current_user_name);
} else {
printf("hi %s\n", current_user_name);
}
}
//-------------------------------------------------------
/*
int isvalidname(char* s1){
// valid characters are a-z 0-1 _
if ((isalpha(s1)==0) && (isdigit(s1)==0) && s1!='_'){
return 0; // not valid
}
else return 1; // is valid
}
*/
//--------------------------------------------------
void handle_help(void) {
printf("I can handle the following sentences\r\n\r\n");
printf(" my name is ___\n");
printf(" what is my name\n");
printf(" what is my gender\n");
printf(" I am male\n");
printf(" I am female\n");
printf(" my gender is male\n");
printf(" my gender is female\n");
printf(" say my name\n");
printf(" what color is ___, ex: what color is grass\n");
printf(" is <subject> <color>, ex: is grass green\n" );
printf(" where is <object>\n" );
printf(" can ___ ___, ");
printf(" what are ___\n" );
printf(" what is a ___\n" );
printf(" what is ___\n" );
printf(" a <object> is a ___, ex: a cat is an animal\n" );
printf(" ___ is <color>\n" );
printf(" ___ like ___, ex: I like pizza\n" );
printf(" ___ hate ___\n" );
printf(" ___ love ___\n" );
printf(" ___ dont like ___\n" );
printf(" do you like ___\n" );
//printf("who am i, ");
//printf("i am ___\r\n");
printf("bye\r\n");
//printf("is ___ ___, ");
//printf("what is ___, ");
//printf("have you heard of ___, ");
//printf("___ is ___\r\n");
//printf("can ___ ___, ");
//printf("do ___ ___, ");
//printf("___ can ___\r\n");
//printf("___ like ___, ");
//printf("do ___ like ___\r\n");
//printf("___ hates ___, ");
//printf("do ___ hate ___\r\n");
//printf("___ is in ___, ");
//printf("where is ___\r\n");
//printf("how old is/are ___\r\n");
//printf("do ___ feel ___, ");
//printf("___ feels ___\r\n");
//printf("do ___ want ___, ");
//printf("___ want _\r\n");
//printf("do ___ have ___\r\n");
//printf("what is the ___ of ___, ___ is the ___ of___\r\n");
//printf("what time is it\r\n");
//printf("lookup ___\r\n");
// continue;
}
//-------------------------------------------------------------
// Experimental. Not in use.
int tokenize(char* in_string, char* word_array, char delimiter) {
// input: in_string
// output: words, number_of_words
int position = 0;
int letter_position;
int word_position;
for(word_position=1; word_position < MAX_WORDS; word_position++) {
for(letter_position = 0; letter_position < MAX_LETTERS; letter_position++) {
// End of in_string?
if(in_string[position]==0 || position >= 80) {
//// word_array[word_position][letter_position] = 0;
return word_position;
}
//end of word?
if(in_string[position] == delimiter) {
//// word_array[word_position][letter_position] = 0; // terminate the word
letter_position = 0; // probably not needed
position++; // skip over the delimiter
break;
}
//// word_array[word_position][letter_position] = in_string[position];
position++;
}
}
}
// new function for chat 10
// compares user input with a sentence template
//
// example:
// user input: what color is grass?
// template : what color is *, color_question, 4
//
// the old way:
// else if(number_of_words==4 && strcmp(words[1],"what")==0 && strcmp(words[2],"color")==0&& strcmp(words[3],"is")==0){
// handle_color_question(words[4]);
// number of words: 4
// word 1: what
// word 2: color
// word 3: is
// function: color_question()
// parameter 1: word 4
// new proceedure:
// parse template by comma
// parse template sentence by space
// compare specified words in user sentence with template sentence
/*
void template_search (void)
open template.txt
outer loop
read template
inner loop
tokenize(template, token_array, ',');
tokenize(token_array[0], word_array, ' ');
// do the words match?
for(i=0, i<WORD_MAX, i++){
if(words!=word_array[i]) break;
if(w=='*') continue;
}
*/
//--------------------------------------------------
// This partialy works, but is not currently in use
// TEMPLATE SEARCH
//
// inputs
// what the user typed
//
// returns
// the matching template
// the result code
// 1) opens the tempate file
// 2) gets a line
// 3) extracts the template
// 4) checks the template to see if it's a match
//int template_search(char*user, char*template2)
//int template_search(char*user, char out[MAX_WORDS][MAX_LETTERS]){
int template_search(char*user, template_info_type* template_info) {
#define TEMPLATE_LINE_LENGTH 120
FILE *template_file_handle;
int line_position;
char *status;
char line[TEMPLATE_LINE_LENGTH];