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# -*- tcl -*- aes.pcx
# Syntax of the commands provided by package aes.
#
# For use by TclDevKit's static syntax checker (v4.1+).
# See http://www.activestate.com/solutions/tcl/
# See http://aspn.activestate.com/ASPN/docs/Tcl_Dev_Kit/4.0/Checker.html#pcx_api
# for the specification of the format of the code in this file.
#
package require pcx
pcx::register aes
pcx::tcldep 1.0.0 needs tcl 8.2
namespace eval ::aes {}
# Using the indirections below looks to be quite pointless, given that
# they simply substitute the commands for others. I am doing this for
# two reasons.
# First, the rules coming after become self-commenting, i.e. a
# maintainer can immediately see what an argument is supposed to be,
# instead of having to search elsewhere (like the documentation and
# implementation). In this manner our definitions here are a type of
# semantic markup.
# The second reason is alluded to as well in the comments to the first
# three definitions. While we have no special checks now we cannot be
# sure if such will (have to) be added in the future. With all
# checking routed through our definitions we now already have the
# basic infrastructure (i.e. hooks) in place in which we can easily
# add any new checks by simply redefining the relevant command, and
# all the rules update on their own. Mostly. This should cover 90% of
# the cases. Sometimes new checks will require to create deeper
# distinctions between different calls of the same thing. For such we
# may have to update the rules as well, to provide the necessary
# information to the checker.
interp alias {} aes::checkAesKey {} checkWord ; # Consider redefinition to check literals
interp alias {} aes::checkAesData {} checkWord ; # for the proper size.
interp alias {} aes::checkAesIV {} checkWord ; #
interp alias {} aes::checkAesMode {} checkKeyword 1 {ecb cbc}
interp alias {} aes::checkAesAction {} checkKeyword 1 {encrypt decrypt}
#pcx::message FOO {... text ...} type
pcx::message needKey {Required -key is missing} err
#pcx::scan <VERSION> <NAME> <RULE>
pcx::check 1.0.0 std ::aes::Decrypt \
{checkSimpleArgs 2 2 {
aes::checkAesKey
aes::checkAesData
}}
pcx::check 1.0.0 std ::aes::Encrypt \
{checkSimpleArgs 2 2 {
aes::checkAesKey
aes::checkAesData
}}
pcx::check 1.0.0 std ::aes::Final \
{checkSimpleArgs 1 1 {
aes::checkAesKey
}}
pcx::check 1.0.0 std ::aes::Init \
{checkSimpleArgs 3 3 {
aes::checkAesMode
aes::checkAesKey
aes::checkAesIV
}}
pcx::check 1.0.0 std ::aes::Reset \
{checkSimpleArgs 2 2 {
aes::checkAesKey
aes::checkAesIV
}}
pcx::check 1.0.0 std ::aes::aes \
{checkConstrained {checkSimpleArgs 1 -1 {
{checkSwitches 1 {
{-mode aes::checkAesMode}
{-dir aes::checkAesAction}
{-key {checkSetConstraint haskey aes::checkAesKey}}
{-iv aes::checkAesIV}
{-hex}
{-out checkChannelID}
{-chunksize checkWholeNum}
{-in {checkSetConstraint hasin checkChannelID}}
} {checkConstraint {
{{!haskey && hasin} {warn aes::needKey {} {
checkAtEnd
}}}
{hasin checkAtEnd}
{{!haskey} {warn aes::needKey {} {checkSimpleArgs 1 1 {
aes::checkAesData
}}}}
} {checkSimpleArgs 1 1 {
aes::checkAesData
}}}}
}}}
# Initialization via pcx::init.
# Use a ::aes::init procedure for non-standard initialization.
pcx::complete
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