Info Catalog org: noweb org: Specific header arguments org: noweb-sep

org: noweb-ref

 
 14.8.2.14 ‘:noweb-ref’
 ......................
 
 When expanding “noweb” style references the bodies of all code block
 with _either_ a block name matching the reference name _or_ a
 ‘:noweb-ref’ header argument matching the reference name will be
 concatenated together to form the replacement text.
 
    By setting this header argument at the sub-tree or file level, simple
 code block concatenation may be achieved.  For example, when tangling
 the following Org mode file, the bodies of code blocks will be
 concatenated into the resulting pure code file(1).
 
       #+BEGIN_SRC sh :tangle yes :noweb yes :shebang #!/bin/sh
         <<fullest-disk>>
       #+END_SRC
       * the mount point of the fullest disk
         :PROPERTIES:
         :noweb-ref: fullest-disk
         :END:
 
       ** query all mounted disks
       #+BEGIN_SRC sh
         df \
       #+END_SRC
 
       ** strip the header row
       #+BEGIN_SRC sh
         |sed '1d' \
       #+END_SRC
 
       ** sort by the percent full
       #+BEGIN_SRC sh
         |awk '{print $5 " " $6}'|sort -n |tail -1 \
       #+END_SRC
 
       ** extract the mount point
       #+BEGIN_SRC sh
         |awk '{print $2}'
       #+END_SRC
 
    The ‘:noweb-sep’ (see noweb-sep) header argument holds the
 string used to separate accumulate noweb references like those above.
 By default a newline is used.
 
    ---------- Footnotes ----------
 
    (1) (The example needs property inheritance to be turned on for the
 ‘noweb-ref’ property, see Property inheritance).
 

Info Catalog org: noweb org: Specific header arguments org: noweb-sep