4 Evaluates expression and executes result string as command.

     4 Evaluates expression and executes result string as command.

     5 Expression evaluation rules:

     5 Expression evaluation rules:

     6 * all operators have the same precedence;

     6 * all operators have the same precedence;

     7 * supported operators:

     7 * supported operators:

     8   . string concatenation

     8   . string concatenation

     9   + binary plus / string concatenation

    11   + binary plus / string concatenation

    10   - binary minus

    12   - binary minus

    11   * multiplication / string replication

    13   * multiplication / string replication

    12   / division

    14   / division

    13   % division remain

    15   % division remain

    23 * to enable parentheses in character strings current implementation ignores anything after extra closing paren - you may use this as a sort of comment...

    25 * to enable parentheses in character strings current implementation ignores anything after extra closing paren - you may use this as a sort of comment...

    24 

    26 

    25 Example:

    27 Example:

    26  /eval "echo 2 + 2 = " . (2+2)

    28  /eval "echo 2 + 2 = " . (2+2)

    27  /eval "set ping_interval = " . (ping_interval + 1)    ) this example probably should use /let command.

    29  /eval "set ping_interval = " . (ping_interval + 1)    ) this example probably should use /let command.