run from Shell R function with json string parameter -

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i have function, works json string. when try in r:

 my_function('{"menu":{"id":"file","value":"file","popup":{"menuitem":[{"value":"new","onclick":"createnewdoc()"},{"value":"open","onclick":"opendoc()"},{"value":"close","onclick":"closedoc()"}]}}}')

it works well.

but when try in shell command:

 r -e "source('./my_function.r'); my_function('{"menu":{"id":"file","value":"file","popup":{"menuitem":[{"value":"new","onclick":"createnewdoc()"},{"value":"open","onclick":"opendoc()"},{"value":"close","onclick":"closedoc()"}]}}}')"

it fails error:

unexpected character 'm'

.

seems, problem quotes in json string. how can solve it?

p.s. need call my_function directly shell.

thank you!

write main script main.r,

source('./my_function.r') my_function('{"menu":{"id":"file","value":"file","popup":{"menuitem":[{"value":"new","onclick":"createnewdoc()"},{"value":"open","onclick":"opendoc()"},{"value":"close","onclick":"closedoc()"}]}}}')"

execute command terminal like,

rscript main.r

please make sure have r path configured.


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