Ok thxs for your answer, but in fact I (try to)  explain 2 problems with include functions
with velocity:
- main problem with include: in a main doc you can not call a custom velocity macro  (ie
foo) with include if this macro is declared in another page.
Main doc containing something like this:
{{include reference="BacASable.PageWithACustomMacro" /}}
#foo('blue'') doesn't work
BacASable.PageWithACustomMacro containing:
#macro( foo $color)
My Color is $color
#end
In old doc: 
https://network.xwiki.com/xwiki/bin/view/DocXE31Fr/IncludeInVelocity you
recommanded #includeInContext but new doc recommand include instead.
- second "problem" , when I want to avoid main problem with #includeInContext
Main doc containing something like this:
$xwiki.includeForm("BacASable.PageWithACustomMacro")
## or #includeInContext("BacASable.PageWithACustomMacro")
{{html}}
#foo('blue'') work well
{{/html}}
BacASable.PageWithACustomMacro containing:
#macro( foo $color)
My Color is $color
#end
I though wrongly then that #includeInContext working like #parse... and doesn't render
the content.
Thxs
Pascal B.
--------------------------------------------
En date de : Lun 14.9.15, vincent(a)massol.net <vincent(a)massol.net> a écrit :
 Objet: Re: Fw : Re: [xwiki-users] Fw : Include & Co board effect
 À: "XWiki Users" <users(a)xwiki.org>
 Cc: pbasnews-xwiki(a)yahoo.fr
 Date: Lundi 14 septembre 2015, 15h15
 On 14
 Sep 2015 at 15:02:40, Pascal BASTIEN
(pbasnews-xwiki@yahoo.fr(mailto:pbasnews-xwiki@yahoo.fr))
 wrote:
  Nope: both 
 method doesn't work with
velocity macro...
  Do you want a nice xar to check? Then 
 where I
can upload it? in Jira?
 In your example below you were not inside a
 velocity macro!
 You
 said:
  Then to obtain 
 what I want I must user
  html tag:
 {{html}}
 
 #includeInContext("mySpace.myPage") 
  {{/html}} 
 The {{html}} macro cannot work inside a
 velocity macro…
 Now,
 #include* macros all render the content, which is why you
 get HTML.
 Thanks
 -Vincent
  --- En date de : Lun 14.9.15, vincent(a)massol.net
 a écrit :
  
 > 
 De: vincent(a)massol.net 
  > Objet: Re: [xwiki-users] Fw : 
 Include
& Co board effect
  > À: 
 "XWiki Users" 
  > Cc: pbasnews-xwiki(a)yahoo.fr
 > Date: Lundi 14 septembre 2015, 
 14h00
  > #yiv5668446636
 > body{font-family:Helvetica,
 > Arial;font-size:13px;}Hi Pascal,
 > You should use {{include}}
 > for transclusions and {{display}} for 
 inserting the result
  > of the 
 execution of some page.
  > 
 Thanks-Vincent
 > > 
 > > On 10 Sep 2015 at 11:26:25,
 > > Pascal BASTIEN (pbasnews-xwiki(a)yahoo.fr)
 > > wrote: NB: new
 >
 > include function {{include
  > 
 reference="BacASable.Page"
 type="document" /}} doesn't work well 
 when
  > target page contains a 
 velocity macro
  > 
 > > If target page contains a macro
 velocity
  > (#macro( foo $color ), 
 the main page
containing
  > 
 "include reference" can't
call foo macro.
  > 
 > > (with
 includeInContext it's working)
 >
 >
  > 
> 
 > > --- En date de : Jeu 10.9.15,
 Pascal
 > > BASTIEN a écrit :
 >
 >
  > 
> 
 > > > De: Pascal BASTIEN
 >
  
 > 
 > > > Objet: [xwiki-users] Include
 & Co
 > > board effect
  > 
 >
> À: 
 "XWiki Users"
 >
  
 > 
 > > > Date:
 Jeudi 10 septembre 2015, 10h33
  > 
 > > > Hello,
 >
 >
 > > > 
 >
 >
 > > > In my velocity script I
 try to include
  > some velocity 
 code
  > 
> 
 > from another page.
  > 
 > > > I want similare function
like
 > > "source" in bash, it's
 like
  > 
> 
 > copy/paste some code in main script
 > > from another file.
  > 
 > > > I
 read
 > > 
https://network.xwiki.com/xwiki/bin/view/DocXE31Fr/IncludeInVelocity
  > 
 > > > and
 use
  > 
#includeInContext("mySpace.myPage") but there
  > 
 > > > are
 board effect:
  > 
 >
 > > #includeInContext return HTML code
 > > like this
 >
 >
 >
  > 
 I
 call
  > MyMacro 
 My color is
  > 
 > > > Red
 ...
  > 
 > > > Then to obtain what I want
I
 must user
 > > html tag:
  > 
 >
> 
 {{html}}
  > 
> 
  
 > 
 #includeInContext("mySpace.myPage") 
  > 
 >
> 
 {{/html}}
  > 
 >
 >
  
 > 
 >
 > > Is it normal?
  > 
 > >
 
 > 
 > >
  
 > 
 > > > Thxs,
 >
 >
 > > > 
 >
 >
 > > > Pascal B