SKIP TO THE BOTTOM IF YOU JUST WANT TO HELP ME WITH SOMETHING PLEASE!!


Project details:




basically he gives us an input file that might look like

xxxx xxxx
yyyy yyyy
zzzz zzzz
QUIT


he will compile our code and input the file as such
g++ project.cpp < inputs

so the idea is that if he gives us, for example, the line



The code needs to do this:

read the line into a string. It should recognize the first word as the NOM. SINGULAR and the second as the GEN. SINGULAR

from there, we need to achieve the STEM. We do this by taking the GEN SING and removing the part at the end. In this case, viri, the 'i' is the end, so we remove it and the stem becomes 'vir'.

It should be noted there are 3 possible cases for this.

The GEN. SING. ends in either 'ae', 'us OR r' & 'um'

Once we figure out which, we list out the 5 latin forms of the word.


For the vir example, it would be

vir viri
viri virorum
viro viris
virum viros
viro viris


------------------------------------------------------------------------------------------------------------------------------------------------------

Now, that aside, I need some help doing the very first task. I can probably figure out the string manipulation stuff, but I need a good way to read the first line of the input document, separate the two words into two different strings? Then be able to mess around with them. I never really learned how to do this in 1250 and the prof didn't really tell us how to do it either. Basically, the 2nd word is the one I need the most I think.


Can someone shed some light on how to do this? (The words will most likely be separated with a single space)

I think what I want to do is:

Use a while loop to read line by the line the document.

Put the 2 words of a line into 2 different strings. Use the 2nd string to check to see if the word ends in 'ae' or 'i'

If it ends in i, it also checks string 1 to see if it ends in 'us' or 'r' or to see if it ends in 'um'

Once we get through all of these statements, we will take the word contained in string2, delete the ending characters (i or ae) and then copy that into a new string called STEM.

Depending on what is true, I will then (probably) perform some minor string manipulations and print out each line

ex:

NOM [string1] [STEM+i]
GEN [string2] [STEM+orum]
DAT [stem + o] [stem + is]
ACC [stem + um] [stem + os]
ABL [stem + o] [stem + is]

More questions:

Can I use the same variable names for the loop?

Like if I do

string term1,term2,stem;

If I put a word into term1 and term 2 and find stem, print them out, then go to line 2....

will the compiler like, add the new line terms into term1 and term2 or will it be smart enough to clean them out?

Poorly worded on my part but basically wondering how this would all work.

This post was edited by Eep on Sep 10 2012 02:19pm

Don't quote me for competence on a lot of what I said. I know the way I spoke it out was wrong. Like here, I wouldn't delete then copy, I would copy then delete ~_~


sorry if my explanation sucks

edit: Think a friend solved one of my questions. Now I just need to figure out how to read a line with 2 words separated by a space and put each into a different string. Then I am G2G!

edit 2: Just use MOAR STRING.

Might be able to do this on my own now.

This post was edited by Eep on Sep 10 2012 03:08pm

I bet in the time it took you to write all of this, you could have finished the project with time left over to jerk it for a bit.

maybe. Writing it down actually helped me think it through better actually.

Anyways, I still need some help with the loop. I need to the loop to stop when the line reads QUIT

should I just do a

while (cin >> tempStr)
if (tempStr = "QUIT")
{
break;
}


??

pretty much.

im not sure how c++ handles strings but fgets reads x number of bytes until x is met or a '\n' character is found.

also make sure to lowercase all your read in input else any typos might cause errors. a simple function i made was this.



takes a pointer to a CSTRING and minuses 32 from it causing the lower case letters to become uppercase. to reverse that and turn upper to lower you can add +32.

the c++ equivilent would to pass a string and minus or add 32 to each element (looping through it and checking if it falls withing a-z) and then returning a string. the function call should look something like



dont quote me on that though

should be easy to rewrite using string though and avoid pointers.

as for separating the output into 2 strings you can use the strtok function to separate strings by a single character.



quick example i had on hand from a previous project.

of course all this is in C using C functions im sure c++ has some built in splitting functions you can call by stringname.split(' '); or something.

This post was edited by AbDuCt on Sep 10 2012 09:54pm

Need help again.

Trying to get my first (and most integral) function done for my project.

I am making a function which splits my string.

My idea was to do this:

Read in a line from the user (for this project, it will be two words separated by a space) this we will call STRING INPUT for now.

Next, I set some variables, lets say x = length of the string and y = position of the whitespace

then, I WANTED to use the string.copy function to copy from the first element of INPUT up until y-1, and put it into a new string


My TEST code was this:



(yes yes I am missing the bottom part with return 0 not a big deal)


and I keep getting errors, specifically that I am calling the wrong function? (I have included <string> just fyi)

I keep checking around and it seems that string.copy does NOT work the way it was taught to me // the way I THOUGHT it would work.

Can anyone help me out?

This post was edited by Eep on Sep 13 2012 12:26am

god I keep changing my mind with this thing...it is so annoying.

Okay so I have a new problem now, nevermind the last one I had



New problem:

The list of inputs going into our program is like this:


xxx yyy
xxx yyy
xxx yyy
xxx yyy
xxx yyy
QUIT


what I need to do:

If (yyy ends in "ae")
do some stuff

else if (xxx ends in "r or us")
do some other stuff
else do something completely different.

My big problem is that initially I wrongly assumed that I could read in an input file 1 line at a time and do stuff then it would automatically go to the next line and do stuff until it reached QUIT then it would stop.


I cannot figure out how to get my program to read the input file one line at a time and do stuff. So do I really have to just read in this giant ass document as 1 giant string and then painstakingly pull each piece apart then work from there??

Is there no way to work 1 line at a time from the document? Maybe I could use fstream or something? Can someone offer me a suggestion?

use fgets()

as i said it reads x number of bytes or until it reaches a '\n' character aka a new line

or use getline() which essentially does the same thing but uses c++ streams



man im slow today just woke up

here is a better varriation of the code



the loop is only entered if reading from stream is OK. if not it wont try to read from the stream.

edit

as for splitting your text if you get that method working i suggest changing string1/2 into an array of strings to clean it up.

as for checking the endings of the words first thing that comes to mind is vb6 mid/right/left functions like.

but in your case id look into c++ substring functions

in C you can do this



in c++ you can use the string::substr method which is problally the answer to your string::copy problem

http://www.cplusplus.com/reference/string/string/substr/



essentially you



hopefully you get the idea

edit:: if you dont specify the length substr is susposed to read as the second argument it copys everything until the end of the string.

This post was edited by AbDuCt on Sep 13 2012 07:52am

so let's suppose I can't use fstream. (Sorry it was late and a bad idea on my part)


What IS going to happen is this:

The professor, when he grades, is going to input a text containing lines (like I posted above) as he compiles

!g++ % && a.out < inputs


So basically its like someone is turning on my program and entering lines of data one at a time.


I need someone to CLARIFY for me what my options are at this point:

1: Is the only way to read in those lines by doing it as one giant string then trying to pick it apart??? If so, HOW DO I DO THIS?

2: Is there a way for me to have the program read 1 line, do stuff with it, print it, THEN go to the next line and do something similar, etc?


I am just beyond stumped right now.