4 commits

Author	SHA1	Message	Date
ridiculousfish	67a6f756f2	Add some math tests for invalid inputs	2017-12-18 23:01:16 -08:00
ridiculousfish	81dd4a4536	[math] Remove more bare variable support ... Prior to this fix, a "bare variable" in math like 'x + 1' would be looked up in the environment, i.e. equivalent to '$x + 1'. This appears to have been done for performance. However this breaks the orthogonality of fish; performance is not a sufficient justification to give math this level of built-in power, especially because the performance of math is not a bottleneck. The implementation is also ugly. Remove this feature so that variables must be prefixed with the dollar sign and undergo normal variable expansion. Reading 'git grep' output does not show any uses of this in fish functions or completions. Also added to changelog. Fixes #4393	2017-12-17 12:40:09 -08:00
Kurtis Rader	c95b9f06e1	Implement support for bare vars by math ... This change allows you to type `math x + 3` rather than `math $x + 3`. Another step to resolving issue #3157.	2017-08-23 20:41:45 -07:00
Kurtis Rader	d97c22df2d	add floating point output to math command ... This makes it easy for the user to request floating point output with the desired number of digits after the decimal point (not to be confused with significant digits). Note that this is just a thin wrapper so someone can say `math -s3 10 / 3` rather than `math "scale=3; 10 /3"`. Resolves #1643	2016-05-03 19:29:04 -07:00