README: add more usage info - sob - simple output bar
 (HTM) git clone git://git.codemadness.org/sob
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       ---
 (DIR) commit fb069221b7b7433cbccc6144388d7f5c3179a44a
 (DIR) parent 088944cffaac6c5ae538ad8f611a48d54f90783c
 (HTM) Author: Hiltjo Posthuma <hiltjo@codemadness.org>
       Date:   Sun, 26 Oct 2014 12:30:44 +0000
       
       README: add more usage info
       
       Diffstat:
         M README                              |      39 +++++++++++++++++++++++++++++++
       
       1 file changed, 39 insertions(+), 0 deletions(-)
       ---
 (DIR) diff --git a/README b/README
       @@ -23,6 +23,45 @@ Features
                - Yank line (xsel).
        
        
       +Install
       +-------
       +
       +        $ make
       +        # make install
       +
       +optionally copy the scripts from the scripts/ directory to:
       +"$HOME/.sob/scripts/".
       +
       +
       +Usage
       +-----
       +
       +        printf 'initial input' | sob -p 'Prompt: ' > file
       +
       +the interface will be printed to stderr (fd 2), the input will be printed to
       +stdout (fd 1).
       +
       +Sob will interpret the "initial input" as keys so the keybinds in config.h
       +will work. For example:
       +
       +        printf 'hai\x01' | sob > /dev/null
       +
       +Will have the initial input "hai" and move the cursor to the beginning of the
       +line (\x01 is Ctrl-a).
       +
       +
       +Scripting
       +---------
       +
       +Sob will write to the process stdin using a pipe. What it writes depends on
       +the context. It can be the current word (line_wordpipeto) or line (line_pipeto).
       +
       +Environment variables set for scripts (see config.h):
       +
       +$SOBLINE   the current text of the line.
       +$SOBWRITE  the string also written to the process stdin.
       +
       +
        Known issues
        ------------
        - Line yank doesn't work with xclip, but does work with xsel.