WP New

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4D v18

WP New


WP New {( source {; option} )} -> Function result

Parameter	Type	Description
source	String, BLOB, Object	String: HTML source, BLOB: 4D Write Pro document (.4wp) or legacy 4D Write Blob document (.4w7/.4wt) Object: range or element or 4D Write Pro document
option	Longint	Import option for HTML expressions
Function result	Object	4D Write Pro object

Description

The WP New command creates and returns a 4D Write Pro object. The returned object is a complete document that can be passed to the WP INSERT DOCUMENT command, for example.

By default, if you omit the source parameter, the command returns an empty 4D Write Pro object.

If the source parameter is used, the new 4D Write Pro object will be filled with the contents of the source. You can pass:

a string parameter: In this case, you pass a 4D HTML source, i.e. a text exported by WP EXPORT VARIABLE with the wk web page html 4D option. This text can contain references (4D tags and expressions) and embedded images.
a blob parameter: In this case, you pass either:
- a 4D Write Pro (.4wp) format document stored in a BLOB.
  For more information about the 4D Write Pro document format, please refer to .4wp document format.
- or a legacy 4D Write area loaded in a BLOB (BLOBs containing .4w7 or .4wt documents are supported). In this context, you can use the option parameter to include HTML expressions as txt in the imported document (see below).
  For a detailed list of 4D Write features that are currently supported in 4D Write Pro objects, please refer to the Importing 4D Write documents section.
  If you want to import a 4D Write document (.4w7 or .4wt) stored on disk, you can also consider using the WP Import document command.
an object parameter that can be:

a range.
WP New will return a new document created from the specified range. Note that, if the range is not equal to the full document range, only the first section is exported and bookmarks are not exported, if any.
an element (table / row / paragraph / body / header / footer / inline picture / section / subsection / style sheet).
WP New will return a new document containing only the contents of the element referenced in the body part (for a row, the new document will contain a table element with the row).
a 4D Write Pro document.
WP New will return a copy of the specified document.

By defaut, HTML expressions inserted in legacy 4D Write documents are not imported (no 4D Write Pro support). If you pass the wk import html expressions as text constant in the option parameter, HTML expressions will be imported as raw text within ##htmlBegin## and ##htmlEnd## tags -- which will require formatting actions afterwards. For example:

##htmlBegin##<span>Imported title<b>bold</b></span>##htmlEnd##

Example 1

You want to create an empty 4D Write Pro object:

myWPObject:=WP New

Example 2

You want to create a new 4D Write Pro object using a 4D Write Pro document stored on disk:

 C_BLOB($BlobDoc)

 C_OBJECT(myWPArea)

 DOCUMENT TO BLOB("myDoc.4wp";$BlobDoc) //load the document in a Blob

 myWPArea:=WP New($BlobDoc)

Example 3

You want to create a 4D Write Pro object containing a simple 4D expression reference:

 C_TEXT(myText)

 myText:="Today is "

 ST INSERT EXPRESSION(myText;"string(current date;System date long)";ST End text)

 myWPA:=WP New(myText)

Example 4

You want to initialize your Write Pro area with a previously-created template:

  //Export template from an existing area

 C_TEXT(wpTemplate)

 WP EXPORT VARIABLE(myWPArea;wpTemplate;wk web page html 4D)

 

  // use the template for a new area

 C_OBJECT(myNewWPA)

 myNewWPA:=WP New(wpTemplate)

Example 5

You want to import a document stored in a BLOB field of the current record from the former 4D Write plug-in into a new 4D Write Pro area, and keep HTML expressions:

 C_OBJECT(wpArea)

 wpArea=WP New([Templates]Reference_;wk import html expressions as text)

Example 6

You have defined a template document with different preformatted parts, each of them being stored as a bookmark. When producing a final document from the template, you can extract any bookmark as a new document and insert it in the final document.

 ARRAY TEXT($_BookmarkNames;0)

 WP GET BOOKMARKS([TEMPLATES]WP;$_BookmarkNames) //get the bookmarks from the template

 $targetRange:=WP New //create an empty document (will be the final document)

 

 $p:=Find in array($_BookmarkNames;"Main_Header") //handle the main header part

 If($p>0)

    $Range:=WP Get bookmark range(WParea;$_BookmarkNames{$p}) //select the range

    $RangeDoc:=WP New($Range) //create a new document from the range

    WP INSERT DOCUMENT($targetRange;$RangeDoc;wk append+wk freeze expressions) //wk append=after replacement, $targetRange is equal to end of replaced text

 End if