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|
# SPDX-License-Identifier: GPL-3.0-or-later
# Copyright (C) 2025-2026 Benjamin Abendroth <braph93@gmx.de>
'''Code for generating wrapper.'''
from . import cli
from . import algo
from . import preprocessor
from .str_utils import replace_many
_CODE = r'''
%WRAPPER_FUNC%() {
%ORIGINAL_COMPLETION_FUNC%
local i=0 del=0 adjust=0 delete=() new_words=()
for ((i=1; i <= ${#words[@]}; ++i)); do
local w="${words[$i]}"
if false; then
true
#ifdef long_opts_arg
elif [[ "$w" == %LONG_OPTS_ARG_PATTERN1% ]]; then
delete+=($i);
elif [[ "$w" == %LONG_OPTS_ARG_PATTERN2% ]]; then
delete+=($i $((++i)));
#endif
#ifdef long_opts_optional
elif [[ "$w" == %LONG_OPTS_OPTIONAL_PATTERN% ]]; then
delete+=($i);
#endif
#ifdef long_opts_flag
elif [[ "$w" == %LONG_OPTS_FLAG_PATTERN% ]]; then
delete+=($i);
#endif
#ifdef short_opts_arg
elif [[ "$w" =~ '%SHORT_OPTS_ARG_REGEX1%' ]]; then
delete+=($i $((++i)));
elif [[ "$w" =~ '%SHORT_OPTS_ARG_REGEX2%' ]]; then
delete+=($i);
#endif
#ifdef short_opts_optional
elif [[ "$w" =~ '%SHORT_OPTS_OPTIONAL_REGEX%' ]]; then
delete+=($i);
#endif
#ifdef short_opts_flag
elif [[ "$w" =~ '%SHORT_OPTS_FLAG_REGEX%' ]]; then
delete+=($i);
#endif
fi
done
for del in "${delete[@]}"; do
(( del < CURRENT )) && (( ++adjust ))
done
(( CURRENT -= adjust ))
for ((i=1; i <= ${#words[@]}; ++i)); do
if [[ " ${delete[@]} " != *" $i "* ]]; then
new_words+=("${words[$i]}")
fi
done
words=("${new_words[@]}")
words[1]='%WRAPS%'
service=%WRAPS%
(( $+_comps[%WRAPS%] )) && $_comps[%WRAPS%]
}
'''
def _make_long_opts_pattern(opts, arg_type):
if not opts:
return ''
long, old = algo.partition(opts, cli.is_long_option_string)
old = [o.lstrip('-') for o in old]
long = [o.lstrip('-') for o in long]
r = ''
if long and old:
r = '-(%s|-(%s))' % ('|'.join(old), '|'.join(long))
elif long:
r = '--(%s)' % '|'.join(long)
elif old:
r = '-(%s)' % '|'.join(old)
if arg_type == 'arg':
r += '=*'
elif arg_type == 'optional':
r += '(|=*)'
return r
def _make_short_opts_flag_regex(flag_opts):
if not flag_opts:
return ''
return '^-[%s]+$' % flag_opts
def _make_short_opts_arg_regex(flag_opts, arg_opts, arg_type):
if not arg_opts:
return ''
if flag_opts:
r = '-[%s]*[%s]' % (flag_opts, arg_opts)
else:
r = '-[%s]' % arg_opts
if arg_type == 'arg':
r += '.+'
elif arg_type == 'optional':
r += '.*'
return f'^{r}$'
def generate_wrapper(ctxt, commandline):
'''Generate code for wrapping a foreign command.'''
make_completion_funcname = ctxt.helpers.make_completion_funcname
completion_funcname = make_completion_funcname(commandline)
wrapper_funcname = make_completion_funcname(commandline, '__wrapper')
if not commandline.wraps:
return (completion_funcname, None)
long_opts_arg = []
long_opts_flag = []
long_opts_optional = []
short_opts_arg = []
short_opts_flag = []
short_opts_optional = []
for option in commandline.get_options():
if option.has_required_arg():
long_opts_arg += option.get_long_option_strings()
long_opts_arg += option.get_old_option_strings()
short_opts_arg += option.get_short_option_strings()
elif option.has_optional_arg():
long_opts_optional += option.get_long_option_strings()
long_opts_optional += option.get_old_option_strings()
short_opts_optional += option.get_short_option_strings()
else:
long_opts_flag += option.get_long_option_strings()
long_opts_flag += option.get_old_option_strings()
short_opts_flag += option.get_short_option_strings()
short_opts_flag = ''.join(o[1] for o in short_opts_flag)
short_opts_arg = ''.join(o[1] for o in short_opts_arg)
short_opts_optional = ''.join(o[1] for o in short_opts_optional)
s = _CODE.strip()
s = replace_many(s, [
('%ORIGINAL_COMPLETION_FUNC%',
completion_funcname),
('%WRAPPER_FUNC%',
wrapper_funcname),
('%WRAPS%',
commandline.wraps),
('%LONG_OPTS_FLAG_PATTERN%',
_make_long_opts_pattern(long_opts_flag, None)),
('%LONG_OPTS_ARG_PATTERN1%',
_make_long_opts_pattern(long_opts_arg, 'arg')),
('%LONG_OPTS_ARG_PATTERN2%',
_make_long_opts_pattern(long_opts_arg, None)),
('%LONG_OPTS_OPTIONAL_PATTERN%',
_make_long_opts_pattern(long_opts_optional, 'optional')),
('%SHORT_OPTS_FLAG_REGEX%',
_make_short_opts_flag_regex(short_opts_flag)),
('%SHORT_OPTS_ARG_REGEX1%',
_make_short_opts_arg_regex(
short_opts_flag, short_opts_arg, None)),
('%SHORT_OPTS_ARG_REGEX2%',
_make_short_opts_arg_regex(
short_opts_flag, short_opts_arg, 'arg')),
('%SHORT_OPTS_OPTIONAL_REGEX%',
_make_short_opts_arg_regex(
short_opts_flag, short_opts_optional, 'optional'))
])
defines = []
if long_opts_flag:
defines.append('long_opts_flag')
if long_opts_arg:
defines.append('long_opts_arg')
if long_opts_optional:
defines.append('long_opts_optional')
if short_opts_flag:
defines.append('short_opts_flag')
if short_opts_arg:
defines.append('short_opts_arg')
if short_opts_optional:
defines.append('short_opts_optional')
s = preprocessor.preprocess(s, defines)
return (wrapper_funcname, s)
|
