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Added comma operator, builtin functions of arity 0 and 2.

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Lewis Van Winkle
2016-02-23 15:18:44 -06:00
parent 5ad50341ec
commit 52a4995d6c
3 changed files with 132 additions and 39 deletions
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README.md
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@@ -214,11 +214,12 @@ Here is some example performance numbers taken from the included
TinyExpr parses the following grammar:
<list> = <expr> {"," <expr>}
<expr> = <term> {("+" | "-") <term>}
<term> = <factor> {("*" | "/" | "%") <factor>}
<factor> = <power> {"^" <power>}
<power> = {("-" | "+")} <base>
<base> = <constant> | <variable> | <function> <power> | "(" <expr> ")"
<base> = <constant> | <variable> | <function-1> <power> | <function-2> "(" <expr> "," <expr> ")" | "(" <list> ")"
In addition, whitespace between tokens is ignored.
@@ -236,7 +237,11 @@ left-to-right).
In addition, the following C math functions are also supported:
- abs (calls to *fabs*), acos, asin, atan, ceil, cos, cosh, exp, floor, ln (calls to *log*), log (calls to *log10*), sin, sinh, sqrt, tan, tanh
- abs (calls to *fabs*), acos, asin, atan, atan2, ceil, cos, cosh, exp, floor, ln (calls to *log*), log (calls to *log10*), pow, sin, sinh, sqrt, tan, tanh
Also, the following constants are available:
- `pi`, `e`
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