ASCII ruler generation

Question

The challenge is to generate an ASCII character count ruler in the following format:

+-------------------------------------------------------------------------+
||    |    |    |    |    |    |    |    |    |    |    |    |    |    |  |
|0         10        20        30        40        50        60        70 |
|                                                                         |
+-------------------------------------------------------------------------+

The length of the ruler should be scalable to any multiple of 10.

Rules:

• Ruler must be horizontal.
• Let's say, to keep things simpler, that the ruler must work until the 1000 mark, all numbers left-aligned, one space after the final number.
• Asking for a ruler with zero length should print NaR
• Negative numbers should print a reversed ruler (-90, -80, -70, ...) with right-aligned numbers, in the exact same format as the one above otherwise

And, just printing to console is fine

Ready, set, golf!

Answer 1

Python - 227 232

Supports entire specification

edit: improved generator expression.

Supporting right aligned negative numbers adds a surprising amount of code.

b,p,d,w,='|+- '
g=input
s=''.join(('%'+d[:i>0]+'10s')%i+['',9*w][i==0] for i in range(g(),g()+1,10)).strip()+w
m,n=s[0]==d and s.find(w)-1,len(s)
t=p+n*d+p
print['\n'.join([t,b+(w*m+'|    '*n)[:n]+b,b+s+b,b+n*w+b,t]),'NaR'][n<9]

Sample outputs:

-30 30

+-----------------------------------------------------------------+
|  |    |    |    |    |    |    |    |    |    |    |    |    |  |
|-30       -20       -10         0         10        20        30 |
|                                                                 |
+-----------------------------------------------------------------+

-30 -30

NaR

100 150

+------------------------------------------------------+
||    |    |    |    |    |    |    |    |    |    |   |
|100       110       120       130       140       150 |
|                                                      |
+------------------------------------------------------+

-1000 -950

+--------------------------------------------------------+
|    |    |    |    |    |    |    |    |    |    |    | |
|-1000      -990      -980      -970      -960      -950 |
|                                                        |
+--------------------------------------------------------+

Answer 2

Not going to beat the dynamic languages today, but anyway...

Haskell, 341

import Data.List
main=interact$unlines.m.map read.words
m[l,r]|r>l=ᴛ.("┌│││└":).(++["┬   ─","┐│││┘"]).ʀ.t.ʀ.t.takeWhile((>4).length).ᴛ$[c"┬",c"│    ",[l,l+10..r]>>=h.show,c" ",c"─"]|True=["NaR"]
h s=p s$length s;p s@('-':_)l=r(6-l)ꜱ++s++r 4ꜱ;p s l=r 5ꜱ++s++r(5-l)ꜱ
ᴛ=transpose;ʀ=reverse;r=replicate;c=cycle
ꜱ=' ';t l@(c:o)|c!!2==ꜱ=t o|True=l

I took the liberty of exchanging the actual ASCII characters with better-looking unicode box drawing chars.

$ echo "-50 30" | runhaskell  def0.hs
┌┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┬┐
│  │    │    │    │    │    │    │    │    │    │    │    │    │    │    │    │    │  │
│-50       -40       -30       -20       -10         0         10        20        30 │
│                                                                                     │
└─────────────────────────────────────────────────────────────────────────────────────┘

Answer 3

Python 2.7, 342 266 260 chars

a,b,c,d,m='+|- \n'
def f(y):x=map(str,(range(0,y+1,10)if y>0 else range(y,1,10)));h,g=len(x[-1])+1,len(x)-1;u=a+(c*10)*g+c*h+a;return'NaR'if y==0 else u+m+b+(b+d*4)*2*g+b+d*(h-1)+b+m+b+''.join(i.ljust(10)for i in x[:-1])+x[-1].ljust(h)+b+m+b+(d*10)*g+d*h+b+m+u

returns a tuple of each line string, which you can then print or save to a file (I prefer the latter for lengths longer than 70 becuase the console will jsut make it look messed up with wrapping)

Assumes y to be a string (raw_input() n python, or sys.argv[1] if you wish to invoke via cmd) an integer (eg with input() in 2.x or int(input()) in 3.x)

I made this a function to be more flexible

edit: reduced to 266 characters. no longer returns a tuple, but a string instead. Now takes an integer instead of a string as the argument

edit2: reduced to 260 chars, single line function

note: does handle negative numbers, but doesn't right justify (I don't really htink the justification is too important anyways

Answer 4

Python, 291 241 characters

A pretty simple approach. I'm sure it can be improved quite a lot.
I tried to follow the guidelines in the comments, but I don't support negative numbers (it was a joke, I hope).
This is a program, prints the ruler to standard output. If your screen is wide enough, it should support pretty long rulers.

import sys
def p(b,a="|"):print a+b+a
j="".join
l=int(sys.argv[1])//10*10
if l:
    d=j(["%-10d"%n for n in range(0,l,10)])+"%d "%l
    L=len(d)
    h="-"*L
    p(h,"+")
    p(j(["|    "[n%5] for n in range(L)]))
    p(d)
    p(" "*L)
    p(h,"+")
else: print "NaR"

Answer 5

C++, 392

This is programmed using the windows console, therefore I just chose a maximum ruler size is 70, it'll just crash for anything bigger. Negative numbers( up to -70) and 0 are handled correctly.

#include<ios>
#define q s[2][i
#define v ,memset(&s
char g,o,i,n,s[5][80];int main(int a,char**b){a=atoi(b[1])v,32,400);n=0<a;for(a=abs(a)v[0][1],45,a+3)v[4][1],45,a+3);i<a+4;++i)o=i-n,!(o%5)?s[1][n?i:i+3]='|',(o%2-1?(n?q]=i/10+48,i>9?q+1]=48:0:((a-i)>9?q+2]=(a-i)/10+48,q+1]=45:0,q+3]=48)):0):0;for(;g-5;g++)for(s[g][a+4]=s[g][i=0]=g&g-4?'|':43;i-80;i++)printf(a?"%c":g+i?"":"NaR",s[g][i]);}

Answer 6

Python - 208

(does not support right aligned negative numbers)

 l,u=map(int,raw_input().split())
 n=u-l
 q="+%s+\n"
 q=q+"|%s|\n"*3+q
 print q%('-'*n,(''.join("|    "for i in range(n)))[:n],(''.join("{:<10d}".format(i)for i in range(l,u,10)))[:n],' '*n,'-'*n)if n>0 else"NaR"

I think my favourite trick was to generate strings that are way longer than necessary and then truncate them, for example:

 ''.join("|    "for i in range(n)))[:n]

I just wish there was a more concise string formatting option for left-alignment (unless there is one that I just don't know about)

Answer 7

Perl 5.14, 198 224 chars

Probably can be shortened a lot further, but here's a first second attempt (with line breaks inserted for readability):

$l=shift||die"NaR\n";
@n=grep!($_%10),$l>0?0..$l:$l..0;
$l=9-length$n[$#n];
@f=('-'x10,'|    'x2,'@'.'<'x9,' 'x10);
@f=map$_ x@n,@f;
map$_=~s/.{$l}$//,@f;
eval"format=\n+$f[0]+\n|$f[1]|\n|$f[2]|\n\@n\n|$f[3]|\n+$f[0]+\n.\n";
write

EDIT: Edited to die with "NaR" when input is 0 and to support negative range.

EDIT2: I haven't had a chance to work more on this, and I only just now noticed the right aligned for negative numbers rule, which my code doesn't support, so I think another solution should be marked as the answer if the deadline has been reached.