mod-mcabber-yaubil: help/en/hlp_eval.txt@320e4393785a (annotated)

0 7707b26e82fd Initial commit Myhailo Danylenko <isbear@ukrpost.net> parents: diff changeset	1
7707b26e82fd Initial commit Myhailo Danylenko <isbear@ukrpost.net> parents: diff changeset	2	/EVAL [expression]
7707b26e82fd Initial commit Myhailo Danylenko <isbear@ukrpost.net> parents: diff changeset	3
7707b26e82fd Initial commit Myhailo Danylenko <isbear@ukrpost.net> parents: diff changeset	4	Evaluates expression and executes result string as command.
7707b26e82fd Initial commit Myhailo Danylenko <isbear@ukrpost.net> parents: diff changeset	5	Expression evaluation rules:
7707b26e82fd Initial commit Myhailo Danylenko <isbear@ukrpost.net> parents: diff changeset	6	* all operators have the same precedence;
7707b26e82fd Initial commit Myhailo Danylenko <isbear@ukrpost.net> parents: diff changeset	7	* supported operators:
7707b26e82fd Initial commit Myhailo Danylenko <isbear@ukrpost.net> parents: diff changeset	8	. string concatenation
7707b26e82fd Initial commit Myhailo Danylenko <isbear@ukrpost.net> parents: diff changeset	9	+ binary plus / string concatenation
7707b26e82fd Initial commit Myhailo Danylenko <isbear@ukrpost.net> parents: diff changeset	10	- binary minus
7707b26e82fd Initial commit Myhailo Danylenko <isbear@ukrpost.net> parents: diff changeset	11	* multiplication / string replication
7707b26e82fd Initial commit Myhailo Danylenko <isbear@ukrpost.net> parents: diff changeset	12	/ division
7707b26e82fd Initial commit Myhailo Danylenko <isbear@ukrpost.net> parents: diff changeset	13	% division remain
7707b26e82fd Initial commit Myhailo Danylenko <isbear@ukrpost.net> parents: diff changeset	14	< binary / string less than
7707b26e82fd Initial commit Myhailo Danylenko <isbear@ukrpost.net> parents: diff changeset	15	> binary / string greater than
7707b26e82fd Initial commit Myhailo Danylenko <isbear@ukrpost.net> parents: diff changeset	16	= binary / string equality
7707b26e82fd Initial commit Myhailo Danylenko <isbear@ukrpost.net> parents: diff changeset	17	* strings must be quoted with double quotes ("..."), within string backslash is used for character escaping (\\ and \" are only useful applications);
7707b26e82fd Initial commit Myhailo Danylenko <isbear@ukrpost.net> parents: diff changeset	18	* parentheses can be used to change operators precedence, nested parentheses are supported as long as they are balanced;
7707b26e82fd Initial commit Myhailo Danylenko <isbear@ukrpost.net> parents: diff changeset	19	* numbers can be specified as plain decimal numbers, minus in front of digit will be recognized as a part of number;
7707b26e82fd Initial commit Myhailo Danylenko <isbear@ukrpost.net> parents: diff changeset	20	* mcabber variables can be specified by name, though only subset of possible names is suppoted:
7707b26e82fd Initial commit Myhailo Danylenko <isbear@ukrpost.net> parents: diff changeset	21	- variable must start from latin alphabetic symbol;
1 320e4393785a Parentheses now have no restrictions in strings Myhailo Danylenko <isbear@ukrpost.net> parents: 0 diff changeset	22	- inside of variable name also are allowed digits, - and _;
320e4393785a Parentheses now have no restrictions in strings Myhailo Danylenko <isbear@ukrpost.net> parents: 0 diff changeset	23	* to enable parentheses in character strings current implementation ignores anything after extra closing paren - you may use this as a sort of comment...
0 7707b26e82fd Initial commit Myhailo Danylenko <isbear@ukrpost.net> parents: diff changeset	24
7707b26e82fd Initial commit Myhailo Danylenko <isbear@ukrpost.net> parents: diff changeset	25	Example:
7707b26e82fd Initial commit Myhailo Danylenko <isbear@ukrpost.net> parents: diff changeset	26	/eval "echo 2 + 2 = " . (2+2)
1 320e4393785a Parentheses now have no restrictions in strings Myhailo Danylenko <isbear@ukrpost.net> parents: 0 diff changeset	27	/eval "set ping_interval = " . (ping_interval + 1) ) this example probably should use /let command.

author	Myhailo Danylenko <isbear@ukrpost.net>
	Tue, 10 Nov 2009 19:36:54 +0200
changeset 1	320e4393785a
parent 0	7707b26e82fd
child 4	faaed3ae3fa8
permissions	-rw-r--r--