class proc_instruction : string -> string -> Pxp_core_types.I.rep_encoding -> object .. end
A single processing instruction occuring in DTD scope. This instruction
can also be added to the DTD object, Creation:
new proc_instruction a_target a_value
creates a new proc_instruction object with the given target string and
the given value string.
Note: A processing instruction is written as
<?target value?> .
method target : string
method value : string
method encoding : Pxp_core_types.I.rep_encoding
method parse_pxp_option : string * string * (string * string) list
Parses a PI containing a PXP option. Such PIs are formed like:
<?target option-name option-att="value" option-att="value" ... ?>
The method returns a triple
(target, option-name, [option-att, value; ...])
or raises Error.
