diff options
| -rw-r--r-- | toys/pending/expr.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/toys/pending/expr.c b/toys/pending/expr.c index c54a7255..763ad02d 100644 --- a/toys/pending/expr.c +++ b/toys/pending/expr.c @@ -21,17 +21,17 @@ config EXPR ( ) : * / % + - != <= < >= > = & | - Each constant and operator must be a sparate command line argument. + Each constant and operator must be a separate command line argument. All operators are infix, meaning they expect a constant (or expression that resolves to a constant) on each side of the operator. Operators of the same priority (within each group above) are evaluated left to right. - Parentheses may be used (as separate arguments) elevate the priority + Parentheses may be used (as separate arguments) to elevate the priority of expressions. Calling expr from a command shell requires a lot of \( or '*' escaping to avoid interpreting shell control characters. - The & and | operators are logical, not bitwise) and may operate on + The & and | operators are logical (not bitwise) and may operate on strings (a blank string is "false"). Comparison operators may also operate on strings (alphabetical sort). |