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#+begin_src prep
#@ ```
#@ printf "one\ntwo\nthree\n" > /tmp/list.txt
#@ printf "1\n2\n3\n" >> /tmp/list.txt
#@ printf "1.0\n2.0\n3.0" >> /tmp/list.txt
#@ ```
#+end_src
###############################################################################
#+begin_src cfengine3
bundle agent example_function_return_types
# @brief Example showing function return types
{
classes:
"this_file_exists" expression => fileexists( $(this.promise_filename) );
vars:
"my_string" string => concat( "Promises you cannot keep",
" are no better than lies");
"my_list_of_strings"
slist => readstringlist( "/tmp/list.txt", # File to read
"", # Don't ignore any lines
"\n", # Split on newlines
inf, # Extract as many entries as possible
inf); # Read in as much data as possible
"my_list_of_integers"
ilist => readintlist( "/tmp/list.txt", # File to read
"^(\D+)|(\d+[^\n]+)", # Ignore any lines that are not integers
"\n", # Split on newlines
inf, # Maximum number of entries
inf); # Maximum number of bytes to read
"my_list_of_reals"
rlist => readreallist( "/tmp/list.txt", # File to read
"^(\D+)", # Ignore any lines that are not digits
"\n", # Split on newlines
inf, # Maximum number of entries
inf); # Maximum number of bytes to read
"my_integer" int => string_length( $(my_string) );
"my_real" real => sum( my_list_of_integers );
"my_data" data => mergedata( '{ "Hello": "world!" }' );
reports:
"my_string: '$(my_string)'";
"my_list_of_strings includes '$(my_list_of_strings)'";
"my_list_of_integers includes '$(my_list_of_integers)'";
"my_list_of_reals includes '$(my_list_of_reals)'";
"my_integer: '$(my_integer)'";
"my_real: '$(my_real)'";
"my_data: '$(with)'"
with => string_mustache( "{{%-top-}}", my_data );
this_file_exists::
"This file exists.";
}
bundle agent __main__
{
methods: "example_function_return_types";
}
#+end_src
#+begin_src example_output
#@ ```
#@ R: my_string: 'Promises you cannot keep are no better than lies'
#@ R: my_list_of_strings includes 'one'
#@ R: my_list_of_strings includes 'two'
#@ R: my_list_of_strings includes 'three'
#@ R: my_list_of_strings includes '1'
#@ R: my_list_of_strings includes '2'
#@ R: my_list_of_strings includes '3'
#@ R: my_list_of_strings includes '1.0'
#@ R: my_list_of_strings includes '2.0'
#@ R: my_list_of_strings includes '3.0'
#@ R: my_list_of_integers includes '1'
#@ R: my_list_of_integers includes '2'
#@ R: my_list_of_integers includes '3'
#@ R: my_list_of_reals includes '1'
#@ R: my_list_of_reals includes '2'
#@ R: my_list_of_reals includes '3'
#@ R: my_list_of_reals includes '1.0'
#@ R: my_list_of_reals includes '2.0'
#@ R: my_list_of_reals includes '3.0'
#@ R: my_integer: '48'
#@ R: my_real: '6.000000'
#@ R: my_data: '{
#@ "Hello": "world!"
#@ }'
#@ R: This file exists.
#@ ```
#+end_src
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