Condition node

A node that conditionally matches based on an expression. More...

Functions
struct ec_node *	ec_node_cond (const char *id, const char *cond_str, struct ec_node *child)

Detailed Description

A node that conditionally matches based on an expression.

Configuration Schema

schema cond {
    string expr  {
        description "XXX";
    }
    node child  {
        description "The child node.";
    }
}

Function Documentation

ec_node_cond()

struct ec_node * ec_node_cond	(	const char *	id,
		const char *	cond_str,
		struct ec_node *	child )

Create a condition node.

The condition node checks that an expression is true before parsing/completing the child node. If it is false, the node doesn't match anything.

Parameters

id	The node identifier.
cond_str	The condition string. This is a function-based expression.
child	The ecoli child node.

Returns

The new ecoli cond node.