Posted to tcl by hypnotoad at Mon Oct 23 18:53:19 GMT 2017view raw
- package provide nproc 0.1
- if {[info command ::nproc] eq {}} {
- ###
- # Named Procedures
- ###
- proc ::nproc {name argdef body} {
- if {[catch {dict keys $argdef} argnames]} {
- puts $argnames
- error "Argument definition is not a well formed dict"
- }
- set result {}
- append result {if {[llength $args]==1} {set argdict [lindex $args 0]} else {set argdict $args}} \n
- foreach {field info} $argdict {
- set argbody [list if {[dict exists $argdict {@field@}]} {set {@field@} [dict get $argdict {@field@}]}]
- set map [list @field@ $field]
- if {[dict exists $info mandatory]} {
- lappend argbody else {error "@field@ is required"}
- } elseif {[dict exists $info default]} {
- lappend map @dvalue@ [dict get $info default]
- lappend argbody else {set {@field@} {@dvalue@}}
- }
- append result [string map $map $argbody] \n
- }
- append result $body
- ::proc $name args $result
- }
- }
- # Example
- nproc newmessage {
- subject {mandatory 1}
- sender {mandatory 1}
- mtime {}
- body {}
- } {
- set auto_reply [subst {To: $sender
- Subject: Re: $subject
- Dear $sender,
- Thank you for writing us about $subject}]
- if {[dict exists $dictargs mtime]} {
- append auto_reply " on [clock format [clock scan $mtime]]"
- }
- puts $auto_reply
- }