mod-mcabber-yaubil: help/en/hlp_eval.txt@5d86c5fefef6 (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
4 faaed3ae3fa8 String head and tail operators Myhailo Danylenko <isbear@ukrpost.net> parents: 1 diff changeset	9	: string head
faaed3ae3fa8 String head and tail operators Myhailo Danylenko <isbear@ukrpost.net> parents: 1 diff changeset	10	^ string tail
0 7707b26e82fd Initial commit Myhailo Danylenko <isbear@ukrpost.net> parents: diff changeset	11	+ binary plus / string concatenation
7707b26e82fd Initial commit Myhailo Danylenko <isbear@ukrpost.net> parents: diff changeset	12	- binary minus
7707b26e82fd Initial commit Myhailo Danylenko <isbear@ukrpost.net> parents: diff changeset	13	* multiplication / string replication
7707b26e82fd Initial commit Myhailo Danylenko <isbear@ukrpost.net> parents: diff changeset	14	/ division
7707b26e82fd Initial commit Myhailo Danylenko <isbear@ukrpost.net> parents: diff changeset	15	% division remain
7707b26e82fd Initial commit Myhailo Danylenko <isbear@ukrpost.net> parents: diff changeset	16	< binary / string less than
7707b26e82fd Initial commit Myhailo Danylenko <isbear@ukrpost.net> parents: diff changeset	17	> binary / string greater than
7707b26e82fd Initial commit Myhailo Danylenko <isbear@ukrpost.net> parents: diff changeset	18	= binary / string equality
7707b26e82fd Initial commit Myhailo Danylenko <isbear@ukrpost.net> parents: diff changeset	19	* 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	20	* 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	21	* 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	22	* 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	23	- 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	24	- 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	25	* 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	26
7707b26e82fd Initial commit Myhailo Danylenko <isbear@ukrpost.net> parents: diff changeset	27	Example:
7707b26e82fd Initial commit Myhailo Danylenko <isbear@ukrpost.net> parents: diff changeset	28	/eval "echo 2 + 2 = " . (2+2)
1 320e4393785a Parentheses now have no restrictions in strings Myhailo Danylenko <isbear@ukrpost.net> parents: 0 diff changeset	29	/eval "set ping_interval = " . (ping_interval + 1) ) this example probably should use /let command.
4 faaed3ae3fa8 String head and tail operators Myhailo Danylenko <isbear@ukrpost.net> parents: 1 diff changeset	30	/eval "echo " . (ssl_fingerprint : 5) . "..." . (ssl_fingerprint ^ 5) ) negative offsets are also supported

author	Myhailo Danylenko <isbear@ukrpost.net>
	Fri, 17 Aug 2012 19:09:08 +0300
changeset 29	5d86c5fefef6
parent 4	faaed3ae3fa8
permissions	-rw-r--r--