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authorScott Rifenbark <scott.m.rifenbark@intel.com>2014-03-20 10:35:43 (GMT)
committerRichard Purdie <richard.purdie@linuxfoundation.org>2014-03-25 13:23:06 (GMT)
commitc0a13d21cf1747f1a6c6a2fe517acf8124d336b8 (patch)
tree274dc0cbbe7668d42b4793b0afc48db6966cec96
parent019c868596988e39327a8663b69a75e9d35cdaf8 (diff)
downloadpoky-c0a13d21cf1747f1a6c6a2fe517acf8124d336b8.tar.gz
bitbake: user-manual-metadata.xml: Sections to handle variable setting added.
Fixes [YOCTO #5507] I provided further explanation in the "Basic Variable Setting" section to note that trailing and leading blanks are not stripped from a value when set (e.g. VARIABLE = " value"). I added a new section "Null and Blank Setting" explaning that setting a variable to "" and " " are two different things. (Bitbake rev: 96d0b38577476a3576487f1fa9a4b6c9dff5d3ed) Signed-off-by: Scott Rifenbark <scott.m.rifenbark@intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
-rw-r--r--bitbake/doc/user-manual/user-manual-metadata.xml20
1 files changed, 20 insertions, 0 deletions
diff --git a/bitbake/doc/user-manual/user-manual-metadata.xml b/bitbake/doc/user-manual/user-manual-metadata.xml
index f7682c0..9cd1a9d 100644
--- a/bitbake/doc/user-manual/user-manual-metadata.xml
+++ b/bitbake/doc/user-manual/user-manual-metadata.xml
@@ -30,6 +30,26 @@
30 <literallayout class='monospaced'> 30 <literallayout class='monospaced'>
31 VARIABLE = "value" 31 VARIABLE = "value"
32 </literallayout> 32 </literallayout>
33 As expected, if you include leading or trailing spaces as part of
34 an assignment, the spaces are retained:
35 <literallayout class='monospaced'>
36 VARIABLE = " value"
37 VARIABLE = "value "
38 </literallayout>
39 </para>
40 </section>
41
42 <section id='null-and-blank-variable-setting'>
43 <title>Null and Blank Variable Setting</title>
44
45 <para>
46 Setting <filename>VARIABLE</filename> to "" sets it to null,
47 while setting the variable to " " sets it to a blank space
48 (i.e. these are not the same values).
49 <literallayout class='monospaced'>
50 VARIABLE = ""
51 VARIABLE = " "
52 </literallayout>
33 </para> 53 </para>
34 </section> 54 </section>
35 55