#255 All $label and $techn supports line breaks

C4.puml

@@ -812,72 +812,57 @@ $elementSkin
 !global $REL_TECHN_MAX_CHAR_WIDTH = 35
 !global $REL_DESCR_MAX_CHAR_WIDTH = 32
 
-!unquoted function $breakDescr($descr, $widthStr)
+!unquoted function $breakText($text, $usedNewLine, $widthStr="-1")
 !$width = %intval($widthStr)
 !$multiLine = ""
-!if (%strpos($descr, "\n") >= 0)
+!if (%strpos($text, "\n") >= 0)
+  !while (%strpos($text, "\n") >= 0)
+    !$brPos = %strpos($text, "\n")
+    !$multiLine = $multiLine + %substr($text, 0, $brPos) + $usedNewLine
+    !$text = %substr($text, $brPos+2)
+  !endwhile
 !else
-  !while (%strlen($descr) > $width)
+  !while ($width>0 && %strlen($text) > $width)
     !$brPos = $width
-    !while ($brPos > 0 && %substr($descr, $brPos, 1) != ' ')
+    !while ($brPos > 0 && %substr($text, $brPos, 1) != ' ')
       !$brPos = $brPos - 1
     !endwhile
 
     !if ($brPos < 1)
-      !$brPos = %strpos($descr, " ")
+      !$brPos = %strpos($text, " ")
     !else
     !endif
 
     !if ($brPos > 0)
-      !$multiLine = $multiLine + %substr($descr, 0, $brPos) + "\n"
-      !$descr = %substr($descr, $brPos + 1)
+      !$multiLine = $multiLine + %substr($text, 0, $brPos) + $usedNewLine
+      !$text = %substr($text, $brPos + 1)
     !else
-      !$multiLine = $multiLine+ $descr
-      !$descr = ""
+      !$multiLine = $multiLine+ $text
+      !$text = ""
     !endif
   !endwhile
 !endif
-!if (%strlen($descr) > 0)
-  !$multiLine = $multiLine + $descr
+!if (%strlen($text) > 0)
+  !$multiLine = $multiLine + $text
 !endif
 !return $multiLine
 !endfunction
 
-' $breakTechn() supports //...//; $breakNode() in C4_Deployment supports no //....//
-!unquoted function $breakTechn($techn, $widthStr)
-!$width = %intval($widthStr)
-!$multiLine = ""
-!if (%strpos($techn, "\n") >= 0)
-  !while (%strpos($techn, "\n") >= 0)
-    !$brPos = %strpos($techn, "\n")
-    !$multiLine = $multiLine + %substr($techn, 0, $brPos) + '</size>//\n//<size:'+$TECHN_FONT_SIZE+'>'
-    !$techn = %substr($techn, $brPos+2)
-  !endwhile
-!else
-  !while (%strlen($techn) > $width)
-    !$brPos = $width
-    !while ($brPos > 0 && %substr($techn, $brPos, 1) != ' ')
-      !$brPos = $brPos - 1
-    !endwhile
+!unquoted function $breakLabel($text)
+!$usedNewLine = "\n== "
+!$multiLine = $breakText($text, $usedNewLine)
+!return $multiLine
+!endfunction
 
-    !if ($brPos < 1)
-      !$brPos = %strpos($techn, " ")
-    !else
-    !endif
+!unquoted function $breakDescr($text, $widthStr)
+  !$usedNewLine = "\n"
+  !return $breakText($text, $usedNewLine, $widthStr)
+!endfunction
 
-    !if ($brPos > 0)
-      !$multiLine = $multiLine + %substr($techn, 0, $brPos) + '</size>//\n//<size:'+$TECHN_FONT_SIZE+'>'
-      !$techn = %substr($techn, $brPos + 1)
-    !else
-      !$multiLine = $multiLine+ $techn
-      !$techn = ""
-    !endif
-  !endwhile
-!endif
-!if (%strlen($techn) > 0)
-  !$multiLine = $multiLine + $techn
-!endif
-!return $multiLine
+' $breakTechn() supports //...//; $breakNode() in C4_Deployment supports no //....//
+!unquoted function $breakTechn($text, $widthStr)
+  !$usedNewLine = '</size>//\n//<size:'+$TECHN_FONT_SIZE+'>'
+  !return $breakText($text, $usedNewLine, $widthStr)
 !endfunction
 
 ' Element properties
@@ -1139,10 +1124,10 @@ $getLegendArea($alias, $hideStereotype)
 
 !function $getBoundary($label, $type)
   !if ($type == "")
-    !return '==' + $label
+    !return '== ' + $breakLabel($label)
   !endif
   !if (type != "")
-    !return '==' + $label + '\n<size:' + $TECHN_FONT_SIZE + '>[' + $type + ']</size>'
+    !return '== ' + $breakLabel($label) + '\n<size:' + $TECHN_FONT_SIZE + '>[' + $type + ']</size>'
   !endif
 !endfunction
 
@@ -1171,9 +1156,11 @@ UpdateBoundaryStyle("", $bgColor=$BOUNDARY_BG_COLOR, $fontColor=$BOUNDARY_COLOR,
     !$rel = $rel + $getSprite($sprite) + ' '
   !endif
   !if ($link != "")
-    !$rel = $rel + '**[[' + $link + ' ' + $label + ']]**'
+    !$usedNewLine = ']]**\n**[[' + $link + ' '
+    !$rel = $rel + '**[[' + $link + ' ' + $breakText($label, $usedNewLine) + ']]**'
   !else
-    !$rel = $rel + '**' + $label + '**'
+    !$usedNewLine = '**\n**'
+    !$rel = $rel + '**' + $breakText($label, $usedNewLine) + '**'
   !endif
   !if ($techn != "")
     ' line break is not deterministic, calculate it
@@ -1192,10 +1179,10 @@ UpdateBoundaryStyle("", $bgColor=$BOUNDARY_BG_COLOR, $fontColor=$BOUNDARY_COLOR,
 !endfunction
 
 !unquoted procedure Rel_($alias1, $alias2, $label, $direction)
-$alias1 $direction $alias2 : **$label**
+$getRel($direction, $alias1, $alias2, $label, "", "", "", "", "")
 !endprocedure
 !unquoted procedure Rel_($alias1, $alias2, $label, $techn, $direction)
-$alias1 $direction $alias2 : **$label**\n//<size:$TECHN_FONT_SIZE>[$techn]</size>//
+$getRel($direction, $alias1, $alias2, $label, $techn, "", "", "", "")
 !endprocedure
 
 !unquoted procedure Rel($from, $to, $label, $techn="", $descr="", $sprite="", $tags="", $link="")

C4_Component.puml

@@ -62,9 +62,9 @@ endlegend
   !if ($sprite != "")
     !$component = $component + $getSprite($sprite) + '\n'
   !endif
-  !$component = $component + '==' + $label
+  !$component = $component + '== ' + $breakLabel($label)
   !if ($techn != "")
-    !$component = $component + '\n//<size:' + $TECHN_FONT_SIZE + '>[' + $techn + ']</size>//'
+    !$component = $component + '\n//<size:' + $TECHN_FONT_SIZE + '>[' + $breakTechn($techn, '-1') + ']</size>//'
   !endif
   !if ($descr != "")
     !$component = $component + '\n\n' + $descr

C4_Container.puml

@@ -63,9 +63,9 @@ endlegend
   !if ($sprite != "")
     !$container = $container + $getSprite($sprite) + '\n'
   !endif
-  !$container = $container + '==' + $label
+  !$container = $container + '== ' + $breakLabel($label)
   !if ($techn != "")
-    !$container = $container + '\n//<size:' + $TECHN_FONT_SIZE + '>[' + $techn + ']</size>//'
+    !$container = $container + '\n//<size:' + $TECHN_FONT_SIZE + '>[' + $breakTechn($techn, '-1') + ']</size>//'
   !endif
   !if ($descr != "")
     !$container = $container + '\n\n' + $descr

C4_Context.puml

@@ -326,31 +326,31 @@ UpdateElementStyle("person")
   !$sprite = $defaultPersonSprite
 !endif
 !if ($descr == "") && ($sprite == "")
-  !return '=='+$label
+  !return '== '+$breakLabel($label)
 !endif
 !if ($descr == "") && ($sprite != "")
-  !return $getSprite($sprite)+'\n=='+$label
+  !return $getSprite($sprite)+'\n== '+$breakLabel($label)
 !endif
 !if ($descr != "") && ($sprite == "")
-  !return '=='+$label+'\n\n '+$descr
+  !return '== '+$breakLabel($label)+'\n\n '+$descr
 !endif
 !if ($descr != "") && ($sprite != "")
-  !return $getSprite($sprite)+'\n=='+$label+'\n\n '+$descr
+  !return $getSprite($sprite)+'\n== '+$breakLabel($label)+'\n\n '+$descr
 !endif
 !endfunction
 
 !function $getSystem($label, $descr, $sprite)
 !if ($descr == "") && ($sprite == "")
-!return '=='+$label
+!return '== '+$breakLabel($label)
 !endif
 !if ($descr == "") && ($sprite != "")
-!return $getSprite($sprite)+'\n=='+$label
+!return $getSprite($sprite)+'\n== '+$breakLabel($label)
 !endif
 !if ($descr != "") && ($sprite == "")
-!return '=='+$label+'\n\n '+$descr
+!return '== '+$breakLabel($label)+'\n\n '+$descr
 !endif
 !if ($descr != "") && ($sprite != "")
-!return $getSprite($sprite)+'\n=='+$label+'\n\n '+$descr
+!return $getSprite($sprite)+'\n== '+$breakLabel($label)+'\n\n '+$descr
 !endif
 !endfunction
 

C4_Deployment.puml

@@ -42,40 +42,10 @@ SetDefaultLegendEntries("person\nsystem\ncontainer\nexternal_person\nexternal_sy
 !global $NODE_TYPE_MAX_CHAR_WIDTH = 35
 !global $NODE_DESCR_MAX_CHAR_WIDTH = 32
 
-!unquoted function $breakNode($type, $widthStr)
-!$width = %intval($widthStr)
-!$multiLine = ""
-!if (%strpos($type, "\n") >= 0)
-  !while (%strpos($type, "\n") >= 0)
-    !$brPos = %strpos($type, "\n")
-    !$multiLine = $multiLine + %substr($type, 0, $brPos) + '</size>\n<size:'+$TECHN_FONT_SIZE+'>'
-    !$type = %substr($type, $brPos+2)
-  !endwhile
-!else
-  !while (%strlen($type) > $width)
-    !$brPos = $width
-    !while ($brPos > 0 && %substr($type, $brPos, 1) != ' ')
-      !$brPos = $brPos - 1
-    !endwhile
-
-    !if ($brPos < 1)
-      !$brPos = %strpos($type, " ")
-    !else
-    !endif
-
-    !if ($brPos > 0)
-      !$multiLine = $multiLine + %substr($type, 0, $brPos) + '</size>\n<size:'+$TECHN_FONT_SIZE+'>'
-      !$type = %substr($type, $brPos + 1)
-    !else
-      !$multiLine = $multiLine+ $type
-      !$type = ""
-    !endif
-  !endwhile
-!endif
-!if (%strlen($type) > 0)
-  !$multiLine = $multiLine + $type
-!endif
-!return $multiLine
+' $breakTechn() in C4 supports //...//; $breakNode() in C4_Deployment supports no //....//
+!unquoted function $breakNode($text, $widthStr)
+  !$usedNewLine = '</size>\n<size:'+$TECHN_FONT_SIZE+'>'
+  !return $breakText($text, $usedNewLine, $widthStr)
 !endfunction
 
 ' Elements
@@ -86,7 +56,7 @@ SetDefaultLegendEntries("person\nsystem\ncontainer\nexternal_person\nexternal_sy
   !if ($sprite != "")
     !$nodeText = $nodeText + $getSprite($sprite) + '\n'
   !endif
-  !$nodeText = $nodeText + '==' + $label
+  !$nodeText = $nodeText + '== ' + $breakText($label, "\n== ")
   !if ($type != "")
     !$nodeText = $nodeText + '\n<size:' + $TECHN_FONT_SIZE + '>[' + $breakNode($type, $NODE_TYPE_MAX_CHAR_WIDTH) + ']</size>'
   !endif
@@ -101,7 +71,7 @@ SetDefaultLegendEntries("person\nsystem\ncontainer\nexternal_person\nexternal_sy
   !if ($sprite != "")
     !$nodeText = $nodeText + $getSprite($sprite) + '\l'
   !endif
-  !$nodeText = $nodeText + '==' + $label
+  !$nodeText = $nodeText + '== ' + $breakText($label, "\l== ")
   !if ($type != "")
     !$nodeText = $nodeText + '\l<size:' + $TECHN_FONT_SIZE + '>[' + $breakNode($type, $NODE_TYPE_MAX_CHAR_WIDTH) + ']</size>'
   !endif
@@ -116,7 +86,7 @@ SetDefaultLegendEntries("person\nsystem\ncontainer\nexternal_person\nexternal_sy
   !if ($sprite != "")
     !$nodeText = $nodeText + $getSprite($sprite) + '\r'
   !endif
-  !$nodeText = $nodeText + '==' + $label
+  !$nodeText = $nodeText + '== ' + $breakText($label, "\r== ")
   !if ($type != "")
     !$nodeText = $nodeText + '\r<size:' + $TECHN_FONT_SIZE + '>[' + $breakNode($type, $NODE_TYPE_MAX_CHAR_WIDTH) + ']</size>'
   !endif

C4_Dynamic.puml

@@ -59,10 +59,10 @@
 ' ##################################
 
 !unquoted procedure Rel_($e_index, $alias1, $alias2, $label, $direction)
-$alias1 $direction $alias2 : **$e_index: $label**
+$getRel($direction, $alias1, $alias2, $e_index + ": " + $label, "", "", "", "", "")
 !endprocedure
 !unquoted procedure Rel_($e_index, $alias1, $alias2, $label, $techn, $direction)
-$alias1 $direction $alias2 : **$e_index: $label**\n//<size:$TECHN_FONT_SIZE>[$techn]</size>//
+$getRel($direction, $alias1, $alias2, $e_index + ": " + $label, $techn, "", "", "", "")
 !endprocedure
 
 !unquoted procedure Rel($from, $to, $label, $techn="", $descr="", $sprite="", $tags="", $link="")

percy/TestLabelsWithLineBreak.puml

@@ -0,0 +1,42 @@
+@startuml
+' convert it with additional command line argument -DRELATIVE_INCLUDE="./.." to use locally
+!if %variable_exists("RELATIVE_INCLUDE")
+  !include %get_variable_value("RELATIVE_INCLUDE")/C4_Component.puml
+  !include %get_variable_value("RELATIVE_INCLUDE")/C4_Deployment.puml
+!else
+  !include https://raw.githubusercontent.com/plantuml-stdlib/C4-PlantUML/master/C4_Component.puml
+  !include https://raw.githubusercontent.com/plantuml-stdlib/C4-PlantUML/master/C4_Deployment.puml
+!endif
+
+Enterprise_Boundary(eb, "Enterprise\nBoundary") {
+  Person(p1, "Normal\nUser\nLabel", "Description\nLine\nBreak")
+  Container(c1, "Container\nLabel", "container techn\nwith line break", "Description\nLine\nBreak")
+  Component(c2, "Component\nLabel", component techn\nwith line break", "Description\nLine\nBreak")
+}
+
+System_Ext(s1, "System Label\nWith\nLineBreak", "Description\nLine\nBreak")
+
+Rel_(p1, c1, "A relation\nwith custom direction", "o-DOWN->>")
+Rel_(p1, c2, "A relation\nwith custom direction", "and technology\nwith LBs", "o-RIGHT-o")
+
+Rel(c1, c2, "A label\nwith\nline breaks", "and technology\nwith LBs")
+Rel(c1, s1, "A linked label\nwith\nline breaks", "and technology\nwith LBs", $link = "http://www.plantuml.com")
+
+Node(n1, "A node label\nwith\nline breaks", "type with\nline break", "description\nwith line break")
+Node(n2, "A node label", "PlantUML packages have no automatic line breaks, type breaks added", "PlantUML packages have no automatic line breaks, description breaks added") {
+  Container(cInNode, "A container in node")
+}
+
+!if %variable_exists("RELATIVE_INCLUDE")
+  !include %get_variable_value("RELATIVE_INCLUDE")/C4_Dynamic.puml
+!else
+  !include https://raw.githubusercontent.com/plantuml-stdlib/C4-PlantUML/master/C4_Dynamic.puml
+!endif
+
+Component(from, "From component")
+Component(to, "To component")
+
+Rel_("pre1", from, to, "A custom dynamic relation\nwith custom direction", "o-DOWN->>")
+Rel_("pre2", from, to, "A custom dynamic relation\nwith custom direction", "and technology\nwith LBs", "+--+")
+Rel(from, to, "A dynamic relation\nwith line break")
+@enduml