diff options
Diffstat (limited to 'sh/shrc.d/ed.sh')
-rw-r--r-- | sh/shrc.d/ed.sh | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/sh/shrc.d/ed.sh b/sh/shrc.d/ed.sh new file mode 100644 index 00000000..c7afb176 --- /dev/null +++ b/sh/shrc.d/ed.sh @@ -0,0 +1,26 @@ +# Add a colon prompt to ed when a command is expected rather than text; makes +# it feel a lot more like using ex. Only do this when stdin is a terminal, +# however. Also try and use -v for more verbose error output, and rlwrap(1) if +# it's available. +ed() { + + # We're only adding options if input is from a terminal + if [ -t 0 ] ; then + + # Colon prompt (POSIX) + set -- -p : "$@" + + # Verbose if available (not POSIX) + if ed -sv - </dev/null >&0 2>&0 ; then + set -- -v "$@" + fi + fi + + # Execute the ed(1) call, in a wrapper if appropriate and with the + # concluded options + if [ -t 0 ] && hash rlwrap 2>/dev/null ; then + command rlwrap ed "$@" + else + command ed "$@" + fi +} |