mirror of https://gitlab.com/QEF/q-e.git
164 lines
3.7 KiB
Tcl
164 lines
3.7 KiB
Tcl
proc ::helpdoc::getFromTree {tree node key} {
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if { [$tree keyexists $node $key] } {
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return [$tree get $node $key]
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}
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return ""
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}
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# TODO: reimplement as getNodeFromDescendant and getNodeFromDescendantPath
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proc ::helpdoc::getDescendantNodes {tree node args} {
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# Usage: getDescendantNodes $tree $node tag1 tag2 last_tag
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# get all descendant node's pointers that matches
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set result ""
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set tag [lindex $args 0]
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foreach child [$tree children $node] {
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set _tag [getFromTree $tree $child tag]
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if { $tag == $_tag } {
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if { $tag == $args } {
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append result "$child "
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} else {
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set args1 [lrange $args 1 end]
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return [getDescendantNodes $tree $child $args1]
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}
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}
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}
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return $result
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}
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# TODO:
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# implement ::helpdoc::getTextFromDescendantPath (this we may need
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# some time). This is aka the old getDescendantText who didn't work well ...
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proc ::helpdoc::getTextFromDescendant {tree node tag} {
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# PURPOSE: get text from all descendant tags named $tag
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#
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# Usage: getTextFromDescendant $tree $node $tag
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set result ""
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foreach child [$tree descendants $node] {
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set _tag [getFromTree $tree $child tag]
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if { $tag == $_tag } {
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append result "[getFromTree $tree $child text] "
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}
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}
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return $result
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}
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proc ::helpdoc::getAttributeFromDescendantPath {tree node args} {
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# PURPOSE: get the requested attribute of specified decendant
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#
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# Usage:
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# getDescendantAttribute $tree $node tag1 tag2 last_tag attribute_of_last_tag
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#
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# where "tag1 tag2 last_tag attribute_of_last_tag" represents path to the attribute
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#
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set result ""
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set tag [lindex $args 0]; # consider the first tag in the list of tags ...
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set att [lindex $args end]
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foreach child [$tree children $node] {
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set _tag [getFromTree $tree $child tag]
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if { $tag == $_tag } {
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# are we already at the end-path, where args = {tag attribute} ?
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if { [llength $args] == 2 } {
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# we are at the end-path, hence get the $att attribute of $_tag
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set attr [getFromTree $tree $child attributes]
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attr2array_ arr $attr
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if { [info exists arr($att)] } {
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append result $arr($att)
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}
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} else {
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# note yet at the end-path,
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# strip-off the current level from args and recursively re-call the proc ...
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set args1 [lrange $args 1 end]
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return [getDescendantAttribute $tree $child $args1]
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}
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}
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}
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return $result
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}
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proc ::helpdoc::getDescendantText {tree node args} {
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# Usage: getDescendantText $tree $node tag1 tag2 last_tag
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# Beware: it will get the text from all tags that matches
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set result ""
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set tag [lindex $args 0]
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foreach child [$tree children $node] {
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set _tag [getFromTree $tree $child tag]
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if { $tag == $_tag } {
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if { $tag == $args } {
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append result "[getFromTree $tree $child text] "
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} else {
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set args1 [lrange $args 1 end]
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return [getDescendantText $tree $child $args1]
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}
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}
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}
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return $result
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}
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proc ::helpdoc::getDescendantAttribute {tree node args} {
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# Usage: getDescendantText $tree $node tag1 tag2 last_tag attribute_of_last_tag
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# Beware: it will get the requested attribute from all tags that matches
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set result ""
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set tag [lindex $args 0]
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set att [lindex $args end]
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foreach child [$tree children $node] {
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set _tag [getFromTree $tree $child tag]
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if { $tag == $_tag } {
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if { [llength $args] == 2 } {
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# ok _tag is the attribute
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set attr [getFromTree $tree $child attributes]
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attr2array_ arr $attr
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if { [info exists arr($att)] } {
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append result $arr($att)
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}
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} else {
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set args1 [lrange $args 1 end]
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return [getDescendantAttribute $tree $child $args1]
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}
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}
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}
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return $result
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}
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