Difference between revisions of "Dynamic Spreadsheet Assignment"

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=Code To Implement=
 
=Code To Implement=
−
For clarity, we will provide what select functions evaluate to for this spreadsheet:
+
{{RacketToImplement|spreadsheet|string->cell<br>csv->spreadsheet<br>row-count<br>row-at sheet<br>sum-row|spreadsheet}}
 +
==string->cell==
 +
(define (string->cell s)
 +
        (error 'not-yet-implemented))
  
 +
* if s is the empty string, evaluate to void
 +
* if s represents a number, evaluate to that number
 +
* if s starts with "(" and ends with ")", evaluate to a form suited for eval
 +
* otherwise, evaluate to s
 +
 +
==csv->spreadsheet==
 +
(define (csv->spreadsheet matrix)
 +
        (error 'not-yet-implemented))
 +
 +
given a list of lists of strings, evaluate to a list of list of cells using [[#string->cell]] and a couple of list higher order functions.
 +
 +
==row-count==
 +
(define (row-count sheet)
 +
        (error 'not-yet-implemented))
 +
 +
<code>hockey-spreadsheet</code>:
 
{| class="wikitable"
 
{| class="wikitable"
 
|Name
 
|Name
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|}
 
|}
  
 +
<code>('''row-count''' hockey-spreadsheet)</code> evaluates to <code>'''4'''</code>
  
−
{{RacketToImplement|spreadsheet|string->cell<br>csv->spreadsheet<br>row-count<br>row-at sheet<br>sum-row|spreadsheet}}
+
==row-at==
−
==string->cell==
+
  (define (row-at sheet row-index)
−
  (define (string->cell s)
+
         (error 'not-yet-implemented))  
−
         (error 'not-yet-implemented))
 
  
−
* if s is the empty string, evaluate to void
+
<code>('''row-at''' hockey-spreadsheet 1)</code> evaluates to <code>'''(list "Bobby Orr" 4 1948 657 270 645)'''</code>
−
* if s represents a number, evaluate to that number
 
−
* if s starts with "(" and ends with ")", evaluate to a form suited for eval
 
−
* otherwise, evaluate to s
 
  
−
==csv->spreadsheet==
+
==sum-row==
−
  (define (csv->spreadsheet matrix)
+
  (define (sum-row sheet row-index)
 
         (error 'not-yet-implemented))
 
         (error 'not-yet-implemented))
  
−
given a list of lists of strings, evaluate to a list of list of cells using [[#string->cell]] and a couple of list higher order functions.
+
<code>('''sum-row''' hockey-spreadsheet 1)</code> evaluates to <code>'''3524'''</code>
 +
 
 +
<code>function-spreadsheet</code>:
 +
{| class="wikitable"
 +
|<code>(+ 1 2)</code>
 +
|<code>(+ 3 4)</code>
 +
|-
 +
|<code>(/ 10 2)</code>
 +
|<code>(sqrt (/ 1 4))</code>
 +
|-
 +
|<code>(sin (/ 3.14159 4))</code>
 +
|<code>10</code>
 +
|}
  
−
==row-count==
+
<code>('''sum-row''' function-spreadsheet 0)</code> evaluates to <code>'''10'''</code>
−
(define (row-count sheet)
 
−
        (error 'not-yet-implemented))
 
  
−
('''row_count''' hockey-spreadsheet) evaluates to '''4'''
+
<code>('''sum-row''' function-spreadsheet 1)</code> evaluates to <code>'''5 1/2'''</code>
  
−
==row-at==
+
<code>('''sum-row''' function-spreadsheet 2)</code> evaluates to <code>'''10.707106312093558'''</code>
−
(define (row-at sheet row-index)
 
−
        (error 'not-yet-implemented))
 
−
==sum-row==
 
−
(define (sum-row sheet row-index)
 
−
        (error 'not-yet-implemented))
 
  
 
=Test=
 
=Test=
 
{{RacketUnitTest|spreadsheet_test|spreadsheet}}
 
{{RacketUnitTest|spreadsheet_test|spreadsheet}}

Latest revision as of 14:16, 30 March 2022

Motivation

Code To Use

general

void

number

string

list

Code To Implement

file: src/main/racket/spreadsheet/spreadsheet.rkt Racket-logo.svg
functions: string->cell
csv->spreadsheet
row-count
row-at sheet
sum-row

string->cell

(define (string->cell s)
       (error 'not-yet-implemented))
  • if s is the empty string, evaluate to void
  • if s represents a number, evaluate to that number
  • if s starts with "(" and ends with ")", evaluate to a form suited for eval
  • otherwise, evaluate to s

csv->spreadsheet

(define (csv->spreadsheet matrix)
       (error 'not-yet-implemented))

given a list of lists of strings, evaluate to a list of list of cells using #string->cell and a couple of list higher order functions.

row-count

(define (row-count sheet)
       (error 'not-yet-implemented))

hockey-spreadsheet:

Name Uniform Number Birth Year Games Played Goals Assists
Bobby Orr 4 1948 657 270 645
Wayne Gretzky 99 1961 1487 894 1963
Mario Lemieux 66 1965 915 690 1033

(row-count hockey-spreadsheet) evaluates to 4

row-at

(define (row-at sheet row-index)
       (error 'not-yet-implemented))

(row-at hockey-spreadsheet 1) evaluates to (list "Bobby Orr" 4 1948 657 270 645)

sum-row

(define (sum-row sheet row-index)
       (error 'not-yet-implemented))

(sum-row hockey-spreadsheet 1) evaluates to 3524

function-spreadsheet:

(+ 1 2) (+ 3 4)
(/ 10 2) (sqrt (/ 1 4))
(sin (/ 3.14159 4)) 10

(sum-row function-spreadsheet 0) evaluates to 10

(sum-row function-spreadsheet 1) evaluates to 5 1/2

(sum-row function-spreadsheet 2) evaluates to 10.707106312093558

Test

file: spreadsheet_test.rkt Racket-logo.svg Test
source folder: src/test/racket/spreadsheet

note: ensure that you have removed all printing to receive credit for any assignment.

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