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# (C) 2010 magicant
# Completion script for the "diff" command.
# Supports POSIX 2008, GNU diffutils 3.0, OpenBSD 4.8, SunOS 5.10, HP-UX 11i v3.
function completion/diff {
case $("${WORDS[1]}" --version 2>/dev/null) in
(*'diffutils'*) typeset type=GNU ;;
(*) typeset type="$(uname 2>/dev/null)" ;;
esac
case $type in
(GNU) typeset long=true ;;
(*) typeset long= ;;
esac
typeset OPTIONS POSIXOPTIONS ADDOPTIONS ARGOPT PREFIX
POSIXOPTIONS=( #>#
"b ${long:+--ignore-space-change}; ignore changes in amount of whitespaces only"
"C: ${long:+--context::}; output in copied context format with the specified number of context lines"
"c; like -C 3"
"e ${long:+--ed}; output in ed script format"
"f ${long:+--forward-ed}; output in forward ed format"
"r ${long:+--recursive}; recursively compare directories"
"U: ${long:+--unified::}; output in unified context format with the specified number of context lines"
"u; like -U 3"
) #<#
ADDOPTIONS=()
case $type in (GNU|*BSD|SunOS|HP-UX)
ADDOPTIONS=("$ADDOPTIONS" #>#
"D: ${long:+--ifdef:}; output in merged #ifdef format with the specified conditional macro name"
"i ${long:+--ignore-case}; case-insensitive comparison"
"l ${long:+--paginate}; output in long format thru the pr command"
"n ${long:+--rcs}; output in rcsdiff format"
"S: ${long:+--starting-file:}; restart directory comparison from the specified file"
"s ${long:+--report-identical-files}; explicitly report identical files"
"t ${long:+--expand-tabs}; expand tabs in output"
"w ${long:+--ignore-all-space}; ignore whitespaces in comparison"
"X: ${long:+--exclude-from:}; skip files whose names match a pattern in the specified file"
"x: ${long:+--exclude:}; skip files whose names match the specified pattern"
) #<#
esac
case $type in (GNU|*BSD)
ADDOPTIONS=("$ADDOPTIONS" #>#
"a ${long:+--text}; assume all files are text"
"d ${long:+--minimal}; make the output as small as possible"
"I: ${long:+--ignore-matching-lines:}; don't output changes matching the specified regular expression"
"L: ${long:+--label:}; specify the label used instead of the filename"
"N ${long:+--new-file}; treat absent files as empty"
"P ${long:+--unidirectional-new-file}; treat absent from-files as empty"
"p ${long:+--show-c-function}; print the name of C function containing changes"
"q ${long:+--brief}; just print the names of differing files"
"T ${long:+--initial-tab}; prepend a tab to each output line to align text"
) #<#
esac
case $type in (GNU)
ADDOPTIONS=("$ADDOPTIONS" #>#
"B --ignore-blank-lines; ignore insertion/deletion of empty lines"
"--binary; don't convert CR-LF into LF"
"--changed-group-format:; specify the format of differing lines"
"E --ignore-tab-expansion; ignore changes due to tab expansion"
"F: --show-function-line:; specify a regular expression to find the name of the function containing the change"
"--from-file:; specify a file to compare with each operand"
"--horizon-lines:; don't discard the specified number of lines in the common prefix/suffix"
"--ignore-file-name-case; case-insensitive filename comparison"
"--left-column; print only the left column of two common lines (with -y)"
"--line-format:; specify the --{old,new,unchanged}-line-format options at once"
"--new-group-format:; specify the format of lines only in the second file"
"--new-line-format:; specify the format of a line only in the second file"
"--no-ignore-file-name-case; case-sensitive filename comparison"
"--normal; output in normal format"
"--old-group-format:; specify the format of lines only in the first file"
"--old-line-format:; specify the format of a line only in the first file"
"--speed-large-files; fast, half-hearted comparison"
"--strip-trailing-cr; ignore carriage returns at the end of lines"
"--suppress-blank-empty; don't end a line with a space unless there was one in the text"
"--suppress-common-lines; don't print common lines (with -y)"
"--tabsize:; specify how many spaces a tab stands for"
"--to-file:; specify a file to compare each operand with"
"--unchanged-group-format:; specify the format of lines common to the both files"
"--unchanged-line-format:; specify the format of a line common to the both files"
"v --version; print version info"
"W: --width:; specify the max output width (with -y)"
"y --side-by-side; output in side-by-side format"
"--help"
) #<#
esac
case $type in (SunOS|HP-UX)
ADDOPTIONS=("$ADDOPTIONS" #>#
"h; fast, half-hearted comparison"
) #<#
esac
OPTIONS=("$POSIXOPTIONS" "$ADDOPTIONS")
unset POSIXOPTIONS ADDOPTIONS
command -f completion//parseoptions ${long:+-es}
case $ARGOPT in
(-)
command -f completion//completeoptions
;;
([CUW]|--context|--unified|--horizon-lines|--tabsize|--width)
;;
(D|--ifdef)
if [ -r tags ]; then
complete -P "$PREFIX" -R "!_TAG_*" -- \
$(cut -f 1 tags 2>/dev/null)
fi
;;
(--*line-format)
command -f completion/diff::line
;;
(--*group-format)
command -f completion/diff::group
;;
(*)
complete -P "$PREFIX" -f
;;
esac
}
function completion/diff::line {
typeset word="${TARGETWORD#"$PREFIX"}"
word=${word//%%}
case $word in (*%|*%[doxX])
PREFIX=${TARGETWORD%\%*} #>>#
complete -T -P "$PREFIX" -D "line contents, without newline" '%l'
complete -T -P "$PREFIX" -D "line contents, with newline" '%L'
complete -T -P "$PREFIX" -D "escape a following character enclosed in single-quotes" '%c'
complete -T -P "$PREFIX" -D "line number in decimal" '%dn'
complete -T -P "$PREFIX" -D "line number in octal" '%on'
complete -T -P "$PREFIX" -D "line number in hexadecimal, lowercase" '%xn'
complete -T -P "$PREFIX" -D "line number in hexadecimal, uppercase" '%Xn'
complete -T -P "$PREFIX" -D "%" '%%'
return 0 #<<#
;;
esac
}
function completion/diff::group {
typeset word="${TARGETWORD#"$PREFIX"}"
word=${word//%%}
case $word in
(*%[doxX])
PREFIX=${TARGETWORD%\%?}
word=${TARGETWORD#"$PREFIX"} #>>#
complete -T -P "$PREFIX" -D "line number just before the group in the first file" "${word}e"
complete -T -P "$PREFIX" -D "line number just before the group in the second file" "${word}E"
complete -T -P "$PREFIX" -D "line number of the first line in the group in the first file" "${word}f"
complete -T -P "$PREFIX" -D "line number of the first line in the group in the second file" "${word}F"
complete -T -P "$PREFIX" -D "line number of the last line in the group in the first file" "${word}l"
complete -T -P "$PREFIX" -D "line number of the last line in the group in the second file" "${word}L"
complete -T -P "$PREFIX" -D "line number just after the group in the first file" "${word}m"
complete -T -P "$PREFIX" -D "line number just after the group in the second file" "${word}M"
complete -T -P "$PREFIX" -D "number of lines in the group in the first file" "${word}n"
complete -T -P "$PREFIX" -D "number of lines in the group in the second file" "${word}N"
return 0 #<<#
;;
(*%)
PREFIX=${TARGETWORD%\%} #>>#
complete -T -P "$PREFIX" -D "lines from the first file" '%<'
complete -T -P "$PREFIX" -D "lines from the second file" '%>'
complete -T -P "$PREFIX" -D "lines common to the both files" '%='
complete -T -P "$PREFIX" -D "escape a following character enclosed in single-quotes" '%c'
complete -T -P "$PREFIX" -D "format a decimal number" '%d'
complete -T -P "$PREFIX" -D "format an octal number" '%o'
complete -T -P "$PREFIX" -D "format a hexadecimal number in lowercase" '%x'
complete -T -P "$PREFIX" -D "format a hexadecimal number in uppercase" '%X'
complete -T -P "$PREFIX" -D "conditional expression" '%('
complete -T -P "$PREFIX" -D "%" '%%'
return 0 #<<#
;;
esac
return 1
}
# vim: set ft=sh ts=8 sts=8 sw=8 noet:
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