[1] | 1 | # ---------------------------------------------------------------------- |
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| 2 | # COMPONENT: library - provides access to the XML library |
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| 3 | # |
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| 4 | # These routines make it easy to load the XML description for a |
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| 5 | # series of tool parameters and browse through the results. |
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| 6 | # ====================================================================== |
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| 7 | # AUTHOR: Michael McLennan, Purdue University |
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[115] | 8 | # Copyright (c) 2004-2005 Purdue Research Foundation |
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| 9 | # |
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| 10 | # See the file "license.terms" for information on usage and |
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| 11 | # redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES. |
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[1] | 12 | # ====================================================================== |
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| 13 | package require tdom |
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| 14 | package require Itcl |
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| 15 | |
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[11] | 16 | namespace eval Rappture { |
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| 17 | variable stdlib "" |
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| 18 | } |
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[1] | 19 | |
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[2134] | 20 | # load the object system along with the XML library code |
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| 21 | Rappture::objects::init |
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| 22 | |
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[1] | 23 | # ---------------------------------------------------------------------- |
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[11] | 24 | # USAGE: library <file> |
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| 25 | # USAGE: library standard |
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[6] | 26 | # USAGE: library isvalid <object> |
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[1] | 27 | # |
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| 28 | # Used to open a <file> containing an XML description of tool |
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| 29 | # parameters. Loads the file and returns the name of the LibraryObj |
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| 30 | # file that represents it. |
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| 31 | # |
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[11] | 32 | # If you use the word "standard" in place of the file name, this |
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| 33 | # function returns the standard Rappture library object, which |
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| 34 | # contains material definitions. |
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[6] | 35 | # |
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| 36 | # The isvalid operation checks an <object> to see if it is a valid |
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| 37 | # library object. Returns 1 if so, and 0 otherwise. |
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[1] | 38 | # ---------------------------------------------------------------------- |
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[6] | 39 | proc Rappture::library {args} { |
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| 40 | # handle the isvalid operation... |
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| 41 | if {[llength $args] > 1 && [lindex $args 0] == "isvalid"} { |
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| 42 | if {[llength $args] != 2} { |
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| 43 | error "wrong # args: should be \"library isvalid object\"" |
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| 44 | } |
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| 45 | set obj [lindex $args 1] |
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[954] | 46 | # |
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| 47 | # BE CAREFUL with the object test: |
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| 48 | # The command should look like a LibraryObj formed by #auto. |
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| 49 | # We want to avoid things like "split" or "set", which are |
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| 50 | # valid Tcl commands but won't respond well to isa. |
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| 51 | # |
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| 52 | if {[regexp {libraryObj[0-9]+$} $obj] |
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| 53 | && [catch {$obj isa ::Rappture::LibraryObj} valid] == 0 |
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| 54 | && $valid} { |
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[6] | 55 | return 1 |
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| 56 | } |
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| 57 | return 0 |
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| 58 | } |
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| 59 | |
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[11] | 60 | if {[llength $args] != 1} { |
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| 61 | error "wrong # args: should be \"library file\" or \"library isvalid object\"" |
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[1] | 62 | } |
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| 63 | set fname [lindex $args 0] |
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| 64 | |
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[11] | 65 | if {$fname == "standard"} { |
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| 66 | variable stdlib |
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| 67 | if {$stdlib != ""} { |
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| 68 | return $stdlib |
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| 69 | } |
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| 70 | set fname [file join $Rappture::installdir lib library.xml] |
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| 71 | |
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| 72 | set fid [::open $fname r] |
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| 73 | set info [read $fid] |
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| 74 | close $fid |
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| 75 | |
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| 76 | set stdlib [Rappture::LibraryObj ::#auto $info] |
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| 77 | return $stdlib |
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[1] | 78 | } |
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| 79 | |
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[7] | 80 | if {[regexp {^<\?[Xx][Mm][Ll]} $fname]} { |
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| 81 | set info $fname |
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| 82 | } else { |
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| 83 | # otherwise, try to open the file and create its LibraryObj |
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| 84 | set fid [::open $fname r] |
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| 85 | set info [read $fid] |
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| 86 | close $fid |
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| 87 | } |
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[1] | 88 | |
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| 89 | set obj [Rappture::LibraryObj ::#auto $info] |
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| 90 | return $obj |
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| 91 | } |
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| 92 | |
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| 93 | # ---------------------------------------------------------------------- |
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[11] | 94 | # USAGE: entities ?-as <fval>? <object> <path> |
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| 95 | # |
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| 96 | # Used to sift through an XML <object> for "entities" within the |
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| 97 | # Rappture description. Entities are things like strings, numbers, |
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| 98 | # etc., which show up in the GUI as controls. |
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| 99 | # |
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| 100 | # Returns a list of all entities found beneath <path>. |
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| 101 | # |
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| 102 | # By default, this method returns the component name "type(id)". |
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| 103 | # This is changed by setting the -as argument to "id" (for name |
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| 104 | # of the tail element), to "type" (for the type of the tail element), |
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| 105 | # to "object" (for an object representing the DOM node referenced by |
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| 106 | # the path. |
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| 107 | # ---------------------------------------------------------------------- |
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| 108 | proc Rappture::entities {args} { |
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| 109 | array set params { |
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| 110 | -as component |
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| 111 | } |
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| 112 | while {[llength $args] > 1} { |
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| 113 | set first [lindex $args 0] |
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| 114 | if {[string index $first 0] == "-"} { |
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| 115 | set choices [array names params] |
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| 116 | if {[lsearch $choices $first] < 0} { |
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| 117 | error "bad option \"$first\": should be [join [lsort $choices] {, }]" |
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| 118 | } |
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| 119 | set params($first) [lindex $args 1] |
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| 120 | set args [lrange $args 2 end] |
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| 121 | } else { |
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| 122 | break |
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| 123 | } |
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| 124 | } |
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| 125 | if {[llength $args] > 2} { |
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| 126 | error "wrong # args: should be \"entities ?-as fval? obj ?path?\"" |
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| 127 | } |
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| 128 | set xmlobj [lindex $args 0] |
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| 129 | set path [lindex $args 1] |
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| 130 | |
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| 131 | set rlist "" |
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| 132 | lappend queue $path |
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| 133 | while {[llength $queue] > 0} { |
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| 134 | set path [lindex $queue 0] |
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| 135 | set queue [lrange $queue 1 end] |
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| 136 | |
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| 137 | foreach cpath [$xmlobj children -as path $path] { |
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[2134] | 138 | set type [$xmlobj element -as type $cpath] |
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| 139 | switch -- $type { |
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[13] | 140 | group - phase { |
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[11] | 141 | lappend queue $cpath |
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| 142 | } |
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| 143 | structure { |
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[22] | 144 | # add this to the return list with the right flavor |
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| 145 | if {$params(-as) == "component"} { |
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| 146 | lappend rlist $cpath |
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| 147 | } else { |
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| 148 | lappend rlist [$xmlobj element -as $params(-as) $cpath] |
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| 149 | } |
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| 150 | |
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[11] | 151 | if {[$xmlobj element $cpath.current.parameters] != ""} { |
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| 152 | lappend queue $cpath.current.parameters |
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| 153 | } |
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| 154 | } |
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[784] | 155 | drawing { |
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| 156 | # add this to the return list with the right flavor |
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| 157 | if {$params(-as) == "component"} { |
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| 158 | lappend rlist $cpath |
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| 159 | } else { |
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| 160 | lappend rlist [$xmlobj element -as $params(-as) $cpath] |
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| 161 | } |
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| 162 | |
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| 163 | foreach child [$xmlobj children $cpath.current] { |
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| 164 | if {[string match about* $child]} { |
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| 165 | continue |
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| 166 | } |
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| 167 | if {[$xmlobj element $cpath.current.$child.parameters] != ""} { |
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| 168 | lappend queue $cpath.current.$child.parameters |
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| 169 | } |
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| 170 | } |
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| 171 | } |
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[11] | 172 | default { |
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[2134] | 173 | if {[catch {Rappture::objects::get $type}] == 0} { |
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| 174 | # add this to the return list with the right flavor |
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| 175 | if {$params(-as) == "component"} { |
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| 176 | lappend rlist $cpath |
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| 177 | } else { |
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| 178 | lappend rlist [$xmlobj element -as $params(-as) $cpath] |
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| 179 | } |
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[11] | 180 | } |
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| 181 | |
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| 182 | # if this element has embedded groups, add them to the queue |
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| 183 | foreach ccpath [$xmlobj children -as path $cpath] { |
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[13] | 184 | set cctype [$xmlobj element -as type $ccpath] |
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| 185 | if {$cctype == "group" || $cctype == "phase"} { |
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[11] | 186 | lappend queue $ccpath |
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| 187 | } |
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| 188 | } |
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| 189 | } |
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| 190 | } |
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| 191 | } |
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| 192 | } |
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| 193 | return $rlist |
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| 194 | } |
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| 195 | |
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| 196 | # ---------------------------------------------------------------------- |
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[1] | 197 | itcl::class Rappture::LibraryObj { |
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| 198 | constructor {info} { # defined below } |
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| 199 | destructor { # defined below } |
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| 200 | |
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[6] | 201 | public method element {args} |
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[11] | 202 | public method parent {args} |
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[6] | 203 | public method children {args} |
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[752] | 204 | public method get {args} |
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[1] | 205 | public method put {args} |
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[22] | 206 | public method copy {path from args} |
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[6] | 207 | public method remove {{path ""}} |
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[2079] | 208 | public method xml {{path ""}} |
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[1] | 209 | |
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[11] | 210 | public method diff {libobj} |
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| 211 | public proc value {libobj path} |
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| 212 | |
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[22] | 213 | public proc path2list {path} |
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[1] | 214 | protected method find {path} |
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[6] | 215 | protected method node2name {node} |
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| 216 | protected method node2comp {node} |
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[11] | 217 | protected method node2path {node} |
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| 218 | protected method childnodes {node type} |
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[1] | 219 | |
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| 220 | private variable _root 0 ;# non-zero => this obj owns document |
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| 221 | private variable _document "" ;# XML DOM tree |
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| 222 | private variable _node "" ;# node within |
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| 223 | } |
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| 224 | |
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| 225 | # ---------------------------------------------------------------------- |
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| 226 | # CONSTRUCTOR |
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| 227 | # ---------------------------------------------------------------------- |
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| 228 | itcl::body Rappture::LibraryObj::constructor {info} { |
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| 229 | if {[regexp {<?[Xx][Mm][Ll]} $info]} { |
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| 230 | set _root 1 |
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| 231 | set _document [dom parse $info] |
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| 232 | set _node [$_document documentElement] |
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| 233 | } elseif {[regexp {^domNode} $info]} { |
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| 234 | set _root 0 |
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| 235 | set _document [$info ownerDocument] |
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| 236 | set _node $info |
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| 237 | } else { |
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| 238 | error "bad info: should be XML text or DOM node" |
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| 239 | } |
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| 240 | } |
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| 241 | |
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| 242 | # ---------------------------------------------------------------------- |
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| 243 | # DESTRUCTOR |
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| 244 | # ---------------------------------------------------------------------- |
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| 245 | itcl::body Rappture::LibraryObj::destructor {} { |
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| 246 | if {$_root && $_document != ""} { |
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| 247 | $_document delete |
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| 248 | } |
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| 249 | } |
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| 250 | |
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| 251 | # ---------------------------------------------------------------------- |
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[11] | 252 | # USAGE: element ?-as <fval>? ?<path>? |
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[1] | 253 | # |
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[6] | 254 | # Clients use this to query a particular element within the entire |
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| 255 | # data structure. The path is a string of the form |
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| 256 | # "structure.box(source).corner". This example represents the tag |
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| 257 | # <corner> within a tag <box id="source"> within a tag <structure>, |
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| 258 | # which must be found at the top level within this document. |
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| 259 | # |
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| 260 | # By default, this method returns the component name "type(id)". |
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[11] | 261 | # This is changed by setting the -as argument to "id" (for name |
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[6] | 262 | # of the tail element), to "type" (for the type of the tail element), |
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| 263 | # to "object" (for an object representing the DOM node referenced by |
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[11] | 264 | # the path). |
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[1] | 265 | # ---------------------------------------------------------------------- |
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[6] | 266 | itcl::body Rappture::LibraryObj::element {args} { |
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| 267 | array set params { |
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[11] | 268 | -as component |
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[6] | 269 | } |
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| 270 | while {[llength $args] > 1} { |
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[1] | 271 | set first [lindex $args 0] |
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| 272 | if {[string index $first 0] == "-"} { |
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[6] | 273 | set choices [array names params] |
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[1] | 274 | if {[lsearch $choices $first] < 0} { |
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| 275 | error "bad option \"$first\": should be [join [lsort $choices] {, }]" |
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| 276 | } |
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[6] | 277 | set params($first) [lindex $args 1] |
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| 278 | set args [lrange $args 2 end] |
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[1] | 279 | } else { |
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| 280 | break |
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| 281 | } |
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| 282 | } |
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| 283 | if {[llength $args] > 1} { |
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[11] | 284 | error "wrong # args: should be \"element ?-as fval? ?path?\"" |
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[1] | 285 | } |
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| 286 | set path [lindex $args 0] |
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| 287 | |
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| 288 | set node [find $path] |
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[6] | 289 | if {$node == ""} { |
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| 290 | return "" |
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| 291 | } |
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[1] | 292 | |
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[11] | 293 | switch -- $params(-as) { |
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[6] | 294 | object { |
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| 295 | return [::Rappture::LibraryObj ::#auto $node] |
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| 296 | } |
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| 297 | component { |
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| 298 | return [node2comp $node] |
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| 299 | } |
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| 300 | id { |
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| 301 | return [node2name $node] |
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| 302 | } |
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[11] | 303 | path { |
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| 304 | return [node2path $node] |
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| 305 | } |
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[6] | 306 | type { |
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| 307 | return [$node nodeName] |
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| 308 | } |
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| 309 | default { |
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[11] | 310 | error "bad flavor \"$params(-as)\": should be component, id, object, path, type" |
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[6] | 311 | } |
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| 312 | } |
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| 313 | } |
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| 314 | |
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| 315 | # ---------------------------------------------------------------------- |
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[11] | 316 | # USAGE: parent ?-as <fval>? ?<path>? |
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[6] | 317 | # |
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[11] | 318 | # Clients use this to query the parent of a particular element. |
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| 319 | # This is just like the "element" method, but it returns the parent |
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| 320 | # of the element instead of the element itself. |
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| 321 | # |
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| 322 | # By default, this method returns a list of component names "type(id)". |
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| 323 | # This is changed by setting the -as argument to "id" (for tail |
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| 324 | # names of all children), to "type" (for the types of all children), |
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| 325 | # to "object" (for a list of objects representing the DOM nodes for |
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| 326 | # all children). |
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| 327 | # ---------------------------------------------------------------------- |
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| 328 | itcl::body Rappture::LibraryObj::parent {args} { |
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| 329 | array set params { |
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| 330 | -as component |
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| 331 | } |
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| 332 | while {[llength $args] > 1} { |
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| 333 | set first [lindex $args 0] |
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| 334 | if {[string index $first 0] == "-"} { |
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| 335 | set choices [array names params] |
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| 336 | if {[lsearch $choices $first] < 0} { |
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| 337 | error "bad option \"$first\": should be [join [lsort $choices] {, }]" |
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| 338 | } |
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| 339 | set params($first) [lindex $args 1] |
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| 340 | set args [lrange $args 2 end] |
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| 341 | } else { |
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| 342 | break |
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| 343 | } |
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| 344 | } |
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| 345 | if {[llength $args] > 1} { |
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| 346 | error "wrong # args: should be \"parent ?-as fval? ?path?\"" |
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| 347 | } |
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| 348 | set path [lindex $args 0] |
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| 349 | |
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| 350 | set node [find $path] |
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| 351 | if {$node == ""} { |
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| 352 | return "" |
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| 353 | } |
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| 354 | set node [$node parentNode] |
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[1042] | 355 | if {$node == ""} { |
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| 356 | return "" |
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| 357 | } |
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[11] | 358 | |
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| 359 | switch -- $params(-as) { |
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| 360 | object { |
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| 361 | return [::Rappture::LibraryObj ::#auto $node] |
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| 362 | } |
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| 363 | component { |
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| 364 | return [node2comp $node] |
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| 365 | } |
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| 366 | id { |
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| 367 | return [node2name $node] |
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| 368 | } |
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| 369 | path { |
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| 370 | return [node2path $node] |
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| 371 | } |
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| 372 | type { |
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| 373 | return [$node nodeName] |
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| 374 | } |
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| 375 | default { |
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| 376 | error "bad flavor \"$params(-as)\": should be component, id, object, path, type" |
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| 377 | } |
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| 378 | } |
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| 379 | } |
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| 380 | |
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| 381 | # ---------------------------------------------------------------------- |
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| 382 | # USAGE: children ?-as <fval>? ?-type <name>? ?<path>? |
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| 383 | # |
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[6] | 384 | # Clients use this to query the children of a particular element |
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| 385 | # within the entire data structure. This is just like the "element" |
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| 386 | # method, but it returns the children of the element instead of the |
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| 387 | # element itself. If the optional -type argument is specified, then |
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| 388 | # the return list is restricted to children of the specified type. |
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| 389 | # |
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| 390 | # By default, this method returns a list of component names "type(id)". |
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[11] | 391 | # This is changed by setting the -as argument to "id" (for tail |
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[6] | 392 | # names of all children), to "type" (for the types of all children), |
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| 393 | # to "object" (for a list of objects representing the DOM nodes for |
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| 394 | # all children). |
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| 395 | # ---------------------------------------------------------------------- |
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| 396 | itcl::body Rappture::LibraryObj::children {args} { |
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| 397 | array set params { |
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[11] | 398 | -as component |
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[6] | 399 | -type "" |
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| 400 | } |
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| 401 | while {[llength $args] > 1} { |
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| 402 | set first [lindex $args 0] |
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| 403 | if {[string index $first 0] == "-"} { |
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| 404 | set choices [array names params] |
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| 405 | if {[lsearch $choices $first] < 0} { |
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| 406 | error "bad option \"$first\": should be [join [lsort $choices] {, }]" |
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[1] | 407 | } |
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[6] | 408 | set params($first) [lindex $args 1] |
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| 409 | set args [lrange $args 2 end] |
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| 410 | } else { |
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| 411 | break |
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[1] | 412 | } |
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[6] | 413 | } |
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| 414 | if {[llength $args] > 1} { |
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[11] | 415 | error "wrong # args: should be \"children ?-as fval? ?-type name? ?path?\"" |
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[6] | 416 | } |
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| 417 | set path [lindex $args 0] |
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| 418 | set node [find $path] |
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| 419 | if {$node == ""} { |
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| 420 | return "" |
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| 421 | } |
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| 422 | |
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| 423 | set nlist "" |
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| 424 | foreach n [$node childNodes] { |
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| 425 | set type [$n nodeName] |
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| 426 | if {[regexp {^#} $type]} { |
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| 427 | continue |
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[1] | 428 | } |
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[6] | 429 | if {$params(-type) != "" && $params(-type) != $type} { |
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| 430 | continue |
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[1] | 431 | } |
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[6] | 432 | lappend nlist $n |
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[1] | 433 | } |
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[6] | 434 | |
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| 435 | set rlist "" |
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[11] | 436 | switch -- $params(-as) { |
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[6] | 437 | object { |
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| 438 | foreach n $nlist { |
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| 439 | lappend rlist [::Rappture::LibraryObj ::#auto $n] |
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| 440 | } |
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| 441 | } |
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| 442 | component { |
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| 443 | foreach n $nlist { |
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| 444 | lappend rlist [node2comp $n] |
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| 445 | } |
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| 446 | } |
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| 447 | id { |
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| 448 | foreach n $nlist { |
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| 449 | lappend rlist [node2name $n] |
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| 450 | } |
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| 451 | } |
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[11] | 452 | path { |
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| 453 | foreach n $nlist { |
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| 454 | lappend rlist [node2path $n] |
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| 455 | } |
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| 456 | } |
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[6] | 457 | type { |
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| 458 | foreach n $nlist { |
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| 459 | lappend rlist [$n nodeName] |
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| 460 | } |
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| 461 | } |
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| 462 | default { |
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[1042] | 463 | error "bad flavor \"$params(-as)\": should be component, id, object, path, type" |
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[6] | 464 | } |
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| 465 | } |
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| 466 | return $rlist |
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[1] | 467 | } |
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| 468 | |
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| 469 | # ---------------------------------------------------------------------- |
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[752] | 470 | # USAGE: get ?-decode yes? ?<path>? |
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[1] | 471 | # |
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[752] | 472 | # Clients use this to query the value of a node. Clients can specify |
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| 473 | # if they want the data to be automatically decoded or no using the |
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| 474 | # -decode flag. This is useful for situations where you want to keep |
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| 475 | # the data encoded to pass to another system, like dx data in fields |
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| 476 | # sending data to nanovis. If the path is not |
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[6] | 477 | # specified, it returns the value associated with the root node. |
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| 478 | # Otherwise, it returns the value for the element specified by the |
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| 479 | # path. |
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[1] | 480 | # ---------------------------------------------------------------------- |
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[752] | 481 | itcl::body Rappture::LibraryObj::get {args} { |
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| 482 | array set params { |
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| 483 | -decode yes |
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| 484 | } |
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| 485 | while {[llength $args] > 0} { |
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| 486 | set first [lindex $args 0] |
---|
| 487 | if {[string index $first 0] == "-"} { |
---|
| 488 | set choices [array names params] |
---|
| 489 | if {[lsearch $choices $first] < 0} { |
---|
| 490 | error "bad option \"$first\": should be [join [lsort $choices] {, }]" |
---|
| 491 | } |
---|
| 492 | set params($first) [lindex $args 1] |
---|
| 493 | set args [lrange $args 2 end] |
---|
| 494 | } else { |
---|
| 495 | break |
---|
| 496 | } |
---|
| 497 | } |
---|
| 498 | if {[llength $args] > 1} { |
---|
| 499 | error "wrong # args: should be \"get ?-decode yes? ?path?\"" |
---|
| 500 | } |
---|
| 501 | if {[llength $args] == 1} { |
---|
| 502 | set path [lindex $args 0] |
---|
| 503 | } else { |
---|
| 504 | set path "" |
---|
| 505 | } |
---|
| 506 | |
---|
[6] | 507 | set node [find $path] |
---|
| 508 | if {$node == ""} { |
---|
| 509 | return "" |
---|
| 510 | } |
---|
[2175] | 511 | # Expat (via tDOM) will always produce utf-8 output, regardless of the |
---|
| 512 | # encoding of the tool.xml. We need to convert utf-8 to unicode for |
---|
| 513 | # Tcl/Tk. This shouldn't affect ASCII tool.xml files. |
---|
| 514 | set string [encoding convertfrom utf-8 [$node text]] |
---|
[752] | 515 | if {$params(-decode) == "yes"} { |
---|
[2175] | 516 | set string [Rappture::encoding::decode -- $string] |
---|
[752] | 517 | } |
---|
[2175] | 518 | return [string trim $string] |
---|
[6] | 519 | } |
---|
| 520 | |
---|
| 521 | # ---------------------------------------------------------------------- |
---|
[647] | 522 | # USAGE: put ?-append yes? ?-id num? ?-type string|file? ?-compress no? ?<path>? <string> |
---|
[6] | 523 | # |
---|
| 524 | # Clients use this to set the value of a node. If the path is not |
---|
| 525 | # specified, it sets the value for the root node. Otherwise, it sets |
---|
| 526 | # the value for the element specified by the path. If the value is a |
---|
| 527 | # string, then it is treated as the text within the tag at the tail |
---|
| 528 | # of the path. If it is a DOM node or a library, then it is inserted |
---|
| 529 | # into the tree at the specified path. |
---|
| 530 | # |
---|
| 531 | # If the optional id is specified, then it sets the identifier for |
---|
| 532 | # the tag at the tail of the path. If the optional append flag is |
---|
| 533 | # specified, then the value is appended to the current value. |
---|
| 534 | # Otherwise, the value replaces the current value. |
---|
| 535 | # ---------------------------------------------------------------------- |
---|
[1] | 536 | itcl::body Rappture::LibraryObj::put {args} { |
---|
[6] | 537 | array set params { |
---|
| 538 | -id "" |
---|
| 539 | -append no |
---|
[647] | 540 | -type string |
---|
| 541 | -compress no |
---|
[6] | 542 | } |
---|
[1] | 543 | while {[llength $args] > 1} { |
---|
| 544 | set first [lindex $args 0] |
---|
[6] | 545 | if {[string index $first 0] == "-"} { |
---|
| 546 | set choices [array names params] |
---|
| 547 | if {[lsearch $choices $first] < 0} { |
---|
| 548 | error "bad option \"$first\": should be [join [lsort $choices] {, }]" |
---|
| 549 | } |
---|
| 550 | set params($first) [lindex $args 1] |
---|
| 551 | set args [lrange $args 2 end] |
---|
| 552 | } else { |
---|
| 553 | break |
---|
[1] | 554 | } |
---|
| 555 | } |
---|
[1042] | 556 | if {[llength $args] < 1 || [llength $args] > 2} { |
---|
[647] | 557 | error "wrong # args: should be \"put ?-append bval? ?-id num? ?-type string|file? ?-compress bval? ?path? string\"" |
---|
[1] | 558 | } |
---|
[6] | 559 | if {[llength $args] == 2} { |
---|
| 560 | set path [lindex $args 0] |
---|
| 561 | set str [lindex $args 1] |
---|
| 562 | } else { |
---|
| 563 | set path "" |
---|
| 564 | set str [lindex $args 0] |
---|
| 565 | } |
---|
[647] | 566 | |
---|
| 567 | if {$params(-type) == "file"} { |
---|
| 568 | set fileName $str |
---|
| 569 | set fid [open $fileName r] |
---|
[687] | 570 | fconfigure $fid -translation binary -encoding binary |
---|
[647] | 571 | set str [read $fid] |
---|
| 572 | close $fid |
---|
| 573 | } |
---|
| 574 | |
---|
| 575 | if {$params(-compress) || [Rappture::encoding::is binary $str]} { |
---|
[1042] | 576 | set str [Rappture::encoding::encode -- $str] |
---|
[647] | 577 | } |
---|
| 578 | |
---|
[6] | 579 | set node [find -create $path] |
---|
[1] | 580 | |
---|
[6] | 581 | # |
---|
| 582 | # Clean up any nodes that don't belong. If we're appending |
---|
| 583 | # the value, then clean up only child <tag> nodes. Otherwise, |
---|
| 584 | # clean up all nodes. |
---|
| 585 | # |
---|
| 586 | set nlist "" |
---|
| 587 | if {$params(-append)} { |
---|
| 588 | foreach n [$node childNodes] { |
---|
| 589 | if {[$n nodeType] != "TEXT_NODE"} { |
---|
| 590 | lappend nlist $n |
---|
[1] | 591 | } |
---|
| 592 | } |
---|
[6] | 593 | } else { |
---|
| 594 | set nlist [$node childNodes] |
---|
| 595 | } |
---|
| 596 | foreach n $nlist { |
---|
| 597 | $n delete |
---|
| 598 | } |
---|
| 599 | |
---|
| 600 | if {[Rappture::library isvalid $str]} { |
---|
[11] | 601 | foreach n [[$str info variable _node -value] childNodes] { |
---|
| 602 | $node appendXML [$n asXML] |
---|
| 603 | } |
---|
[6] | 604 | } else { |
---|
| 605 | set n [$_document createText $str] |
---|
| 606 | $node appendChild $n |
---|
| 607 | if {"" != $params(-id)} { |
---|
| 608 | $node setAttribute id $params(-id) |
---|
[1] | 609 | } |
---|
| 610 | } |
---|
[6] | 611 | return "" |
---|
[1] | 612 | } |
---|
| 613 | |
---|
| 614 | # ---------------------------------------------------------------------- |
---|
[22] | 615 | # USAGE: copy <path> from ?<xmlobj>? <path> |
---|
| 616 | # |
---|
| 617 | # Clients use this to copy the value from one xmlobj/path to another. |
---|
| 618 | # If the <xmlobj> is not specified, it is assumed to be the same as |
---|
| 619 | # the current object. |
---|
| 620 | # ---------------------------------------------------------------------- |
---|
| 621 | itcl::body Rappture::LibraryObj::copy {path from args} { |
---|
| 622 | if {[llength $args] == 1} { |
---|
| 623 | set xmlobj $this |
---|
| 624 | set fpath [lindex $args 0] |
---|
| 625 | } elseif {[llength $args] == 2} { |
---|
| 626 | set xmlobj [lindex $args 0] |
---|
| 627 | set fpath [lindex $args 1] |
---|
| 628 | } else { |
---|
| 629 | error "wrong # args: should be \"copy path from ?xmlobj? path\"" |
---|
| 630 | } |
---|
| 631 | if {$from != "from"} { |
---|
| 632 | error "bad syntax: should be \"copy path from ?xmlobj? path\"" |
---|
| 633 | } |
---|
| 634 | |
---|
| 635 | if {[llength [$xmlobj children $fpath]] == 0} { |
---|
| 636 | set val [$xmlobj get $fpath] |
---|
| 637 | put $path $val |
---|
| 638 | } else { |
---|
| 639 | set obj [$xmlobj element -as object $fpath] |
---|
| 640 | put $path $obj |
---|
| 641 | itcl::delete object $obj |
---|
| 642 | } |
---|
| 643 | } |
---|
| 644 | |
---|
| 645 | # ---------------------------------------------------------------------- |
---|
[6] | 646 | # USAGE: remove ?<path>? |
---|
| 647 | # |
---|
| 648 | # Clients use this to remove the specified node. Removes the node |
---|
| 649 | # from the tree. |
---|
| 650 | # ---------------------------------------------------------------------- |
---|
| 651 | itcl::body Rappture::LibraryObj::remove {{path ""}} { |
---|
| 652 | set node [find $path] |
---|
| 653 | if {$node != ""} { |
---|
| 654 | $node delete |
---|
| 655 | } |
---|
| 656 | } |
---|
| 657 | |
---|
| 658 | # ---------------------------------------------------------------------- |
---|
[2079] | 659 | # USAGE: xml ?<path>? |
---|
[1] | 660 | # |
---|
| 661 | # Returns a string representing the XML information for the information |
---|
| 662 | # in this library. |
---|
| 663 | # ---------------------------------------------------------------------- |
---|
[2079] | 664 | itcl::body Rappture::LibraryObj::xml {{path ""}} { |
---|
| 665 | if {"" != $path} { |
---|
| 666 | set n [find $path] |
---|
| 667 | } else { |
---|
| 668 | set n $_node |
---|
| 669 | } |
---|
| 670 | return [$n asXML] |
---|
[1] | 671 | } |
---|
| 672 | |
---|
| 673 | # ---------------------------------------------------------------------- |
---|
[11] | 674 | # USAGE: diff <libobj> |
---|
| 675 | # |
---|
| 676 | # Compares the entities in this object to those in another and |
---|
| 677 | # returns a list of differences. The result is a list of the form: |
---|
| 678 | # {op1 path1 oldval1 newval1 ...} where each "op" is +/-/c for |
---|
| 679 | # added/subtracted/changed, "path" is the path within the library |
---|
| 680 | # that is different, and "oldval"/"newval" give the values for the |
---|
| 681 | # object at the path. |
---|
| 682 | # ---------------------------------------------------------------------- |
---|
| 683 | itcl::body Rappture::LibraryObj::diff {libobj} { |
---|
| 684 | set rlist "" |
---|
| 685 | |
---|
| 686 | # query the values for all entities in both objects |
---|
| 687 | set thisv [Rappture::entities $this input] |
---|
| 688 | set otherv [Rappture::entities $libobj input] |
---|
| 689 | |
---|
| 690 | # scan through values for this object, and compare against other one |
---|
| 691 | foreach path $thisv { |
---|
| 692 | set i [lsearch -exact $otherv $path] |
---|
| 693 | if {$i < 0} { |
---|
| 694 | foreach {raw norm} [value $this $path] break |
---|
| 695 | lappend rlist - $path $raw "" |
---|
| 696 | } else { |
---|
| 697 | foreach {traw tnorm} [value $this $path] break |
---|
| 698 | foreach {oraw onorm} [value $libobj $path] break |
---|
| 699 | if {![string equal $tnorm $onorm]} { |
---|
| 700 | lappend rlist c $path $traw $oraw |
---|
| 701 | } |
---|
| 702 | set otherv [lreplace $otherv $i $i] |
---|
| 703 | } |
---|
| 704 | } |
---|
| 705 | |
---|
| 706 | # add any values left over in the other object |
---|
| 707 | foreach path $otherv { |
---|
| 708 | foreach {oraw onorm} [value $libobj $path] break |
---|
| 709 | lappend rlist + $path "" $oraw |
---|
| 710 | } |
---|
| 711 | return $rlist |
---|
| 712 | } |
---|
| 713 | |
---|
| 714 | # ---------------------------------------------------------------------- |
---|
| 715 | # USAGE: value <object> <path> |
---|
| 716 | # |
---|
| 717 | # Used to query the "value" associated with the <path> in an XML |
---|
| 718 | # <object>. This is a little more complicated than the object's |
---|
| 719 | # "get" method. It handles things like structures and values |
---|
| 720 | # with normalized units. |
---|
| 721 | # |
---|
| 722 | # Returns a list of two items: {raw norm} where "raw" is the raw |
---|
| 723 | # value from the "get" method and "norm" is the normalized value |
---|
| 724 | # produced by this routine. Example: {300K 300} |
---|
| 725 | # |
---|
| 726 | # Right now, it is a handy little utility used by the "diff" method. |
---|
| 727 | # Eventually, it should be moved to a better object-oriented |
---|
| 728 | # implementation, where each Rappture type could overload the |
---|
| 729 | # various bits of processing below. So we leave it as a "proc" |
---|
| 730 | # now instead of a method, since it should be deprecated soon. |
---|
| 731 | # ---------------------------------------------------------------------- |
---|
| 732 | itcl::body Rappture::LibraryObj::value {libobj path} { |
---|
| 733 | switch -- [$libobj element -as type $path] { |
---|
| 734 | structure { |
---|
| 735 | set raw $path |
---|
| 736 | # try to find a label to represent the structure |
---|
| 737 | set val [$libobj get $path.about.label] |
---|
| 738 | if {"" == $val} { |
---|
| 739 | set val [$libobj get $path.current.about.label] |
---|
| 740 | } |
---|
| 741 | if {"" == $val} { |
---|
| 742 | if {[$libobj element $path.current] != ""} { |
---|
| 743 | set comps [$libobj children $path.current.components] |
---|
| 744 | set val "<structure> with [llength $comps] components" |
---|
| 745 | } else { |
---|
| 746 | set val "<structure>" |
---|
| 747 | } |
---|
| 748 | } |
---|
| 749 | return [list $raw $val] |
---|
| 750 | } |
---|
| 751 | number { |
---|
| 752 | # get the usual value... |
---|
| 753 | set raw "" |
---|
[763] | 754 | set val "" |
---|
[11] | 755 | if {"" != [$libobj element $path.current]} { |
---|
| 756 | set raw [$libobj get $path.current] |
---|
| 757 | } elseif {"" != [$libobj element $path.default]} { |
---|
| 758 | set raw [$libobj get $path.default] |
---|
| 759 | } |
---|
| 760 | if {"" != $raw} { |
---|
| 761 | set val $raw |
---|
| 762 | # then normalize to default units |
---|
| 763 | set units [$libobj get $path.units] |
---|
| 764 | if {"" != $units} { |
---|
| 765 | set val [Rappture::Units::convert $val \ |
---|
| 766 | -context $units -to $units -units off] |
---|
| 767 | } |
---|
| 768 | } |
---|
| 769 | return [list $raw $val] |
---|
| 770 | } |
---|
| 771 | } |
---|
| 772 | |
---|
| 773 | # for all other types, get the value (current, or maybe default) |
---|
| 774 | set raw "" |
---|
| 775 | if {"" != [$libobj element $path.current]} { |
---|
| 776 | set raw [$libobj get $path.current] |
---|
| 777 | } elseif {"" != [$libobj element $path.default]} { |
---|
| 778 | set raw [$libobj get $path.default] |
---|
| 779 | } |
---|
| 780 | return [list $raw $raw] |
---|
| 781 | } |
---|
| 782 | |
---|
| 783 | # ---------------------------------------------------------------------- |
---|
[1] | 784 | # USAGE: find ?-create? <path> |
---|
| 785 | # |
---|
[6] | 786 | # Used internally to find a particular element within the root node |
---|
| 787 | # according to the path, which is a string of the form |
---|
| 788 | # "typeNN(id).typeNN(id). ...", where each "type" is a tag <type>; |
---|
| 789 | # if the optional NN is specified, it indicates an index for the |
---|
| 790 | # <type> tag within its parent; if the optional (id) part is included, |
---|
| 791 | # it indicates a tag of the form <type id="id">. |
---|
| 792 | # |
---|
| 793 | # By default, it looks for an element along the path and returns None |
---|
| 794 | # if not found. If the create flag is set, it creates various elements |
---|
| 795 | # along the path as it goes. This is useful for "put" operations. |
---|
| 796 | # |
---|
| 797 | # If you include "#" instead of a specific number, a node will be |
---|
| 798 | # created automatically with a new number. For example, the path |
---|
| 799 | # "foo.bar#" called the first time will create "foo.bar", the second |
---|
| 800 | # time "foo.bar1", the third time "foo.bar2" and so forth. |
---|
| 801 | # |
---|
| 802 | # Returns an object representing the element indicated by the path, |
---|
| 803 | # or "" if the path is not found. |
---|
[1] | 804 | # ---------------------------------------------------------------------- |
---|
| 805 | itcl::body Rappture::LibraryObj::find {args} { |
---|
| 806 | set create 0 |
---|
| 807 | while {[llength $args] > 1} { |
---|
| 808 | set first [lindex $args 0] |
---|
| 809 | set args [lrange $args 1 end] |
---|
| 810 | if {$first == "-create"} { |
---|
| 811 | set create 1 |
---|
| 812 | } else { |
---|
| 813 | error "bad option \"$first\": should be -create" |
---|
| 814 | } |
---|
| 815 | } |
---|
| 816 | if {[llength $args] != 1} { |
---|
| 817 | error "wrong # args: should be \"find ?-create? path\"" |
---|
| 818 | } |
---|
[6] | 819 | set path [lindex $args 0] |
---|
[1] | 820 | |
---|
[6] | 821 | if {$path == ""} { |
---|
| 822 | return $_node |
---|
| 823 | } |
---|
| 824 | set path [path2list $path] |
---|
| 825 | |
---|
[1] | 826 | # |
---|
| 827 | # Follow the given path and look for all of the parts. |
---|
| 828 | # |
---|
| 829 | set lastnode $_node |
---|
| 830 | set node $lastnode |
---|
| 831 | foreach part $path { |
---|
[842] | 832 | if {![regexp {^(([a-zA-Z0-9_]*[a-zA-Z_]+#?)([0-9]*))?(\((.*)\))?$} $part \ |
---|
[6] | 833 | match dummy type index dummy name]} { |
---|
| 834 | error "bad path component \"$part\"" |
---|
| 835 | } |
---|
| 836 | # |
---|
| 837 | # If the name is like "type2", then look for elements with |
---|
| 838 | # the type name and return the one with the given index. |
---|
| 839 | # If the name is like "type", then assume the index is 0. |
---|
| 840 | # |
---|
| 841 | if {$name == ""} { |
---|
[1] | 842 | if {$index == ""} { |
---|
| 843 | set index 0 |
---|
| 844 | } |
---|
[11] | 845 | set nlist [childnodes $node $type] |
---|
[1] | 846 | set node [lindex $nlist $index] |
---|
[6] | 847 | } else { |
---|
[1] | 848 | # |
---|
[6] | 849 | # If the name is like "type(id)", then look for elements |
---|
[1] | 850 | # that match the type and see if one has the requested name. |
---|
[6] | 851 | # if the name is like "(id)", then look for any elements |
---|
| 852 | # with the requested name. |
---|
[1] | 853 | # |
---|
[6] | 854 | if {$type != ""} { |
---|
[11] | 855 | set nlist [childnodes $node $type] |
---|
[6] | 856 | } else { |
---|
| 857 | set nlist [$node childNodes] |
---|
| 858 | } |
---|
[1] | 859 | set found 0 |
---|
| 860 | foreach n $nlist { |
---|
[6] | 861 | if {[catch {$n getAttribute id} tag]} { set tag "" } |
---|
[1] | 862 | if {$tag == $name} { |
---|
| 863 | set found 1 |
---|
| 864 | break |
---|
| 865 | } |
---|
| 866 | } |
---|
| 867 | set node [expr {($found) ? $n : ""}] |
---|
| 868 | } |
---|
| 869 | |
---|
| 870 | if {$node == ""} { |
---|
| 871 | if {!$create} { |
---|
| 872 | return "" |
---|
| 873 | } |
---|
[6] | 874 | |
---|
| 875 | # |
---|
| 876 | # If the "create" flag is set, then create a node |
---|
| 877 | # with the specified "type(id)" and continue on. |
---|
| 878 | # If the type is "type#", then create a node with |
---|
| 879 | # an automatic number. |
---|
| 880 | # |
---|
[1] | 881 | if {![regexp {^([^\(]+)\(([^\)]+)\)$} $part match type name]} { |
---|
| 882 | set type $part |
---|
| 883 | set name "" |
---|
| 884 | } |
---|
| 885 | |
---|
[6] | 886 | if {[string match *# $type]} { |
---|
| 887 | set type [string trimright $type #] |
---|
| 888 | set node [$_document createElement $type] |
---|
| 889 | |
---|
| 890 | # find the last node of same type and append there |
---|
| 891 | set pos "" |
---|
| 892 | foreach n [$lastnode childNodes] { |
---|
| 893 | if {[$n nodeName] == $type} { |
---|
| 894 | set pos $n |
---|
| 895 | } |
---|
| 896 | } |
---|
| 897 | if {$pos != ""} { |
---|
| 898 | set pos [$pos nextSibling] |
---|
| 899 | } |
---|
| 900 | if {$pos != ""} { |
---|
| 901 | $lastnode insertBefore $node $pos |
---|
| 902 | } else { |
---|
| 903 | $lastnode appendChild $node |
---|
| 904 | } |
---|
| 905 | } else { |
---|
| 906 | set node [$_document createElement $type] |
---|
| 907 | $lastnode appendChild $node |
---|
| 908 | } |
---|
[1] | 909 | if {"" != $name} { |
---|
[6] | 910 | $node setAttribute id $name |
---|
[1] | 911 | } |
---|
| 912 | } |
---|
| 913 | set lastnode $node |
---|
| 914 | } |
---|
| 915 | return $node |
---|
| 916 | } |
---|
| 917 | |
---|
| 918 | # ---------------------------------------------------------------------- |
---|
| 919 | # USAGE: path2list <path> |
---|
| 920 | # |
---|
| 921 | # Converts a path of the form "foo(a).bar.baz" into a list of the |
---|
| 922 | # form "foo(a) bar baz". This is a little more complicated than |
---|
| 923 | # splitting on the .'s, since the stuff in ()'s might have embedded |
---|
| 924 | # .'s. Returns a proper Tcl list for all elements of the path. |
---|
| 925 | # ---------------------------------------------------------------------- |
---|
| 926 | itcl::body Rappture::LibraryObj::path2list {path} { |
---|
| 927 | # |
---|
| 928 | # Normally, we just split on .'s within the path. But there |
---|
| 929 | # might be some .'s embedded within ()'s in the path. Change |
---|
| 930 | # any embedded .'s to an out-of-band character, then split on |
---|
| 931 | # the .'s, and change the embedded .'s back. |
---|
| 932 | # |
---|
| 933 | if {[regexp {(\([^\)]*)\.([^\)]*\))} $path]} { |
---|
| 934 | while {[regsub -all {(\([^\)]*)\.([^\)]*\))} $path "\\1\007\\2" path]} { |
---|
| 935 | # keep fixing... |
---|
| 936 | } |
---|
| 937 | } |
---|
| 938 | set path [split $path .] |
---|
| 939 | regsub -all {\007} $path {.} path |
---|
| 940 | |
---|
| 941 | return $path |
---|
| 942 | } |
---|
[6] | 943 | |
---|
| 944 | # ---------------------------------------------------------------------- |
---|
| 945 | # USAGE: node2name <node> |
---|
| 946 | # |
---|
| 947 | # Used internally to create a name for the specified node. If the |
---|
| 948 | # node doesn't have a specific name ("id" attribute) then a name of |
---|
| 949 | # the form "type123" is constructed. |
---|
| 950 | # ---------------------------------------------------------------------- |
---|
| 951 | itcl::body Rappture::LibraryObj::node2name {node} { |
---|
| 952 | if {[catch {$node getAttribute id} name]} { set name "" } |
---|
| 953 | if {$name == ""} { |
---|
| 954 | set pnode [$node parentNode] |
---|
| 955 | if {$pnode == ""} { |
---|
| 956 | return "" |
---|
| 957 | } |
---|
| 958 | set type [$node nodeName] |
---|
[11] | 959 | set siblings [childnodes $pnode $type] |
---|
[6] | 960 | set index [lsearch $siblings $node] |
---|
| 961 | if {$index == 0} { |
---|
| 962 | set name $type |
---|
| 963 | } else { |
---|
| 964 | set name "$type$index" |
---|
| 965 | } |
---|
| 966 | } |
---|
| 967 | return $name |
---|
| 968 | } |
---|
| 969 | |
---|
| 970 | # ---------------------------------------------------------------------- |
---|
| 971 | # USAGE: node2comp <node> |
---|
| 972 | # |
---|
| 973 | # Used internally to create a path component name for the specified |
---|
| 974 | # node. A path component name has the form "type(id)" or just |
---|
| 975 | # "type##" if the node doesn't have a name. This name can be used |
---|
| 976 | # in a path to uniquely address the component. |
---|
| 977 | # ---------------------------------------------------------------------- |
---|
| 978 | itcl::body Rappture::LibraryObj::node2comp {node} { |
---|
| 979 | set type [$node nodeName] |
---|
| 980 | if {[catch {$node getAttribute id} name]} { set name "" } |
---|
| 981 | if {$name == ""} { |
---|
| 982 | set pnode [$node parentNode] |
---|
| 983 | if {$pnode == ""} { |
---|
| 984 | return "" |
---|
| 985 | } |
---|
[11] | 986 | set siblings [childnodes $pnode $type] |
---|
[6] | 987 | set index [lsearch $siblings $node] |
---|
| 988 | if {$index == 0} { |
---|
| 989 | set name $type |
---|
| 990 | } else { |
---|
| 991 | set name "$type$index" |
---|
| 992 | } |
---|
| 993 | } else { |
---|
| 994 | set name "${type}($name)" |
---|
| 995 | } |
---|
| 996 | return $name |
---|
| 997 | } |
---|
[11] | 998 | |
---|
| 999 | # ---------------------------------------------------------------------- |
---|
| 1000 | # USAGE: node2path <node> |
---|
| 1001 | # |
---|
| 1002 | # Used internally to create a full path name for the specified node. |
---|
| 1003 | # The path is relative to the current object, so it stops when the |
---|
| 1004 | # parent is the root node for this object. |
---|
| 1005 | # ---------------------------------------------------------------------- |
---|
| 1006 | itcl::body Rappture::LibraryObj::node2path {node} { |
---|
| 1007 | set path [node2comp $node] |
---|
| 1008 | set node [$node parentNode] |
---|
| 1009 | while {$node != "" && $node != $_node} { |
---|
| 1010 | set path "[node2comp $node].$path" |
---|
| 1011 | set node [$node parentNode] |
---|
| 1012 | } |
---|
| 1013 | return $path |
---|
| 1014 | } |
---|
| 1015 | |
---|
| 1016 | # ---------------------------------------------------------------------- |
---|
| 1017 | # USAGE: childnodes <node> <type> |
---|
| 1018 | # |
---|
| 1019 | # Used internally to return a list of children for the given <node> |
---|
| 1020 | # that match a specified <type>. Similar to XML getElementsByTagName, |
---|
| 1021 | # but returns only direct children of the <node>. |
---|
| 1022 | # ---------------------------------------------------------------------- |
---|
| 1023 | itcl::body Rappture::LibraryObj::childnodes {node type} { |
---|
| 1024 | set rlist "" |
---|
| 1025 | foreach cnode [$node childNodes] { |
---|
| 1026 | if {[$cnode nodeName] == $type} { |
---|
| 1027 | lappend rlist $cnode |
---|
| 1028 | } |
---|
| 1029 | } |
---|
| 1030 | return $rlist |
---|
| 1031 | } |
---|