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authorP. J. McDermott <pj@pehjota.net>2015-12-07 12:07:15 (EST)
committer P. J. McDermott <pj@pehjota.net>2015-12-07 12:07:15 (EST)
commit34a77f7822126263fed5c72aedaa65b58fee94ac (patch)
treea3404e611672f64126298e2f0f6d3398b014851e /src/cmd.sh
parent84f3cccfb57fc8270b2ae14f0adf2c2ff24cc69b (diff)
parent41f638c961d5c7832e2b18a9f2e45a09b54dc53e (diff)
Merge branch 'feature/use-shld'
Diffstat (limited to 'src/cmd.sh')
-rw-r--r--src/cmd.sh122
1 files changed, 122 insertions, 0 deletions
diff --git a/src/cmd.sh b/src/cmd.sh
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--- /dev/null
+++ b/src/cmd.sh
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+# Command-related functions
+#
+# Copyright (C) 2013 Patrick "P. J." McDermott
+#
+# This file is part of the ProteanOS Development Kit.
+#
+# The ProteanOS Development Kit is free software: you can redistribute
+# it and/or modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation, either version 3 of the
+# License, or (at your option) any later version.
+#
+# The ProteanOS Development Kit is distributed in the hope that it
+# will be useful, but WITHOUT ANY WARRANTY; without even the implied
+# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+# See the GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with the ProteanOS Development Kit. If not, see
+# <http://www.gnu.org/licenses/>.
+
+cmds=' '
+running_cmd=
+running_cmd_clean=
+
+register_cmd()
+{
+ local cmd="${1}"
+ shift 1
+
+ cmds="${cmds}${cmd} "
+ return 0
+}
+
+print_opt_summaries()
+{
+ local padding=
+ local opt=
+ local opt_out=
+ local summary=
+
+ padding="$(printf '%24s' '')"
+ for opt in $(printf '%s' "${OPTSTRING}" | sed 's/\([a-zA-Z0-9]\)/ \1/g')
+ do
+ if [ ${#opt} -eq 1 ]; then
+ # No argument expected.
+ opt_out="-${opt}"
+ else
+ # Argument expected.
+ opt="${opt%?}"
+ opt_out="-${opt} $(get_msg "opt_${opt}_arg")"
+ fi
+ if [ ${#opt_out} -gt 20 ]; then
+ printf ' %s\n%24s' "${opt_out}" ''
+ else
+ printf ' %-20s ' "${opt_out}"
+ fi
+ summary="$(get_msg "opt_${opt}_summary")"
+ printf '%s\n' "${summary}" | fold -s -w 56 | \
+ sed "2,\$s/^/${padding}/;"
+ done
+}
+
+print_cmd_summaries()
+{
+ local padding=
+ local cmd=
+ local cmd_clean=
+ local summary=
+
+ padding="$(printf '%24s' '')"
+ for cmd in ${cmds}; do
+ if [ ${#cmd} -gt 20 ]; then
+ printf ' %s\n%24s' "${cmd}" ''
+ else
+ printf ' %-20s ' "${cmd}"
+ fi
+ cmd_clean="$(printf '%s' "${cmd}" | \
+ tr '[A-Z]' '[a-z]' | tr -C '[a-z0-9_]' '_')"
+ summary="$(get_msg "cmd_${cmd_clean}_summary")"
+ printf '%s\n' "${summary}" | fold -s -w 56 | \
+ sed "2,\$s/^/${padding}/;"
+ done
+}
+
+print_cmd_usage()
+{
+ local cmd="${1}"
+ local cmd_clean=
+ local usage=
+
+ cmd_clean="$(printf '%s' "${cmd}" | \
+ tr '[A-Z]' '[a-z]' | tr -C '[a-z0-9_]' '_')"
+ usage="$(get_msg "cmd_${cmd_clean}_usage")"
+
+ printf "$(get_msg 'cmd_usage')\n" "${0}" "${cmd}" "${usage}"
+}
+
+is_cmd()
+{
+ local cmd="${1}"
+
+ [ "x$(printf '%s\n' ${cmds} | grep "^${cmd}$")" = "x${cmd}" ]
+}
+
+run_cmd()
+{
+ local cmd="${1}"
+ local cmd_clean=
+ shift
+
+ cmd_clean="$(printf '%s' "${cmd}" | \
+ tr '[A-Z]' '[a-z]' | tr -C '[a-z0-9_]' '_')"
+ if is_cmd "${cmd}"; then
+ running_cmd="${cmd}"
+ running_cmd_clean="${cmd_clean}"
+ "cmd_${cmd_clean}_main" "${@}"
+ running_cmd=''
+ running_cmd_clean=''
+ else
+ error 1 "$(get_msg 'cmd_not_found')" "${cmd}"
+ fi
+}