Expression Evaluator 3

[DorkeyDear]

Script Name: Expression Evaluator 3
Script Description: Evaluates an expression Example: Evaluate('7+4*3') returns '19'. This is for scripters, not server owners. If you wish to use this script in your script, feel free to, but please note my name.
Original Author: DorkeyDear (Curt)
Core Version: 2.6.3
Required Files:
filename (minimal version) link
convert.pas (5) http://curt.soldatrs.com/boosters/convert.pas
math.pas (20) http://curt.soldatrs.com/boosters/math.pas
strops.pas (3) http://curt.soldatrs.com/boosters/strops.pas
expreval.pas (1.23) http://curt.soldatrs.com/boosters/expreval.pas

Notes:
Case-sensitive
Ignores spaces
Prompting a boolean, anything non-0 is true
Returning a boolean, 1=true, 0=false
"~" is the negative character

Operators:
PI: float; value of pi
E: float; value of e
PHI: float; value of Phi (do "1 - PHI" to get the value of phi)
abs float: float; absolute value
sign float: integer; sign (-1 for negatives, 0 for 0, 1 for positives)
int float: integer; integer part of value
float float: float; float part of value
float roundto integer: float; rounds to nearest specified decimal place
round float: integer; rounds to the nearest integer
floor float: integer; floors the number
ceil float: integer; ceilings the number
sqrt float: float; square-root
sin float: float; sine
cos float: float; cosine
tan float: float; tangent
sec float: float; secant
csc float: float; cosecant
cot float: float; cotangent
arcsin float: float; arc-sine
arccos float: float; arc-cosine
arctan float: float; arc-tangent
arcsec float: float; arc-secant
arccsc float: float; arc-cosecant
arccot float: float; arc-cotangent
ln float: float; natural logarithm (slow and inaccurate)
not boolean: boolean; not
integer !: integer; factorial
integer c integer: integer; combination
integer p integer: integer; permutation
float ^ integer: float; exponents
float * float: float; multiplication
float / float: float; division
float % float: float; modulus
float + float: float; addition
float - float: float; subtraction
integer << integer: integer; bit shift left
integer >> integer: integer; bit shift right
float < float: boolean; less than
float <= float: boolean; less than or equal to
float > float: boolean; greater than
float >= float: boolean; greater than or equal to
float == float: boolean; equal to
float != float: boolean; not equal to
boolean and boolean: boolean; logical and
boolean xor boolean: boolean; logical xor
boolean or boolean: boolean; logical or

Order of Precedence:
1 () left to right
2 PI E PHI left to right
3 abs sign int roundto round floor ceil sqrt arcsin, arccos, arctan, arcsec, arccsc, arccot, sin, cos, tan, sec, csc, cot right to left
4 not right to left
5 ! left to right
6 c p left to right
7 ^ left to right
8 * / % left to right
9 + - left to right
10 << >> left to right
11 < <= > >= left to right
12 == != left to right
13 and left to right
14 xor left to right
15 or left to right

Older Versions:
1: http://nopaste.org/p/a1PijA3tkb
2: http://nopaste.org/p/aTx9wvzeh

Please report any bugs or suggestions

[BombSki]

nice.. thats quite an advanced script there good work

[rhide]

I'm impressed! Good job!

[danmer]

oh man, this is even more useful than my prime number finder

[DorkeyDear]

oh man, this is even more useful than my prime number finder

reminds me of my calculator program i made that finds prime factors of a given number man i hate how slow calculators are.

[sai`ke]

Neat stuff! Creative way of using the script core.

[DorkeyDear]

So it has finally been remade, with working negatives and longer than one character long operators in a single release!

EDIT:
For those who want to add your own operators, feel free to; with the way its setup, it shouldn't be extremely difficult.

Date Posted: June 17, 2008, 01:47:36 pmUpdate:

• added roundto operator
  
• added 12 trigonometric operators
• added c and p operators (aka nCr, nPr)
  
• added not operator
  
• modified ! operator to be factorial
  Now requires Math Operations 18
  
  Could anybody help me figure out a way to do log functions? Changing the base will be simple once I get some sort of function.
  
  Date Posted: June 29, 2008, 06:24:18 pmUpdate:
  
• added support for constants (PI, E, PHI are built in)

Note that built-in constants will be capital for a reason. Its easiest to describe with an example:
Say we have the constant "ë", and want to use the operator "sec"... so we have the string "sec2", the e in there will be replaced with the constant value, so we will have "s2.71828182845905c2" and then the c operator will try to work with the constant e which is not what we want.

[iDante]

heh I see you got the arc stuff working.
nice job, I will be using this in a script I'm working on.

[DorkeyDear]

Update:

• added float operator
  
• added ln operator (inaccurate and slow)
  Now requires Math Operations 20