mirrors/zsh
1
0
Fork 0
mirror of git://git.code.sf.net/p/zsh/code synced 2025-09-12 01:11:27 +02:00
Code Releases Activity

moved to ./Functions/Misc/is-at-least

Browse source
This commit is contained in:
Sven Wischnowsky 2001-04-02 12:25:48 +00:00
parent 8f73567b8a
commit d38d852f50
1 changed files with 0 additions and 36 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

36
Functions/Misc/is-at-least
View file

@ -1,36 +0,0 @@
#
# Test whether $ZSH_VERSION (or some value of your choice, if a second argument
# is provided) is greater than or equal to x.y.z-r (in argument one). In fact,
# it'll accept any dot/dash-separated string of numbers as its second argument
# and compare it to the dot/dash-separated first argument. Leading non-number
# parts of a segment (such as the "zefram" in 3.1.2-zefram4) are not considered
# when the comparison is done; only the numbers matter. Any left-out segments
# in the first argument that are present in the version string compared are
# considered as zeroes, eg 3 == 3.0 == 3.0.0 == 3.0.0.0 and so on.
#
# Usage examples:
# is-at-least 3.1.6-15 && setopt NO_GLOBAL_RCS
# is-at-least 3.1.0 && setopt HIST_REDUCE_BLANKS
# is-at-least 586 $MACHTYPE && echo 'You could be running Mandrake!'
# is-at-least $ZSH_VERSION || print 'Something fishy here.'
function is-at-least()
{
emulate zsh ; setopt LOCAL_OPTIONS
local IFS=".-" min_cnt=0 ver_cnt=0 part min_ver version
min_ver=(${=1})
version=(${=2:-$ZSH_VERSION} 0)
while (( $min_cnt <= ${#min_ver} )); do
while [[ "$part" != <-> ]]; do
(( ++ver_cnt > ${#version} )) && return 0
part=${version[ver_cnt]##*[^0-9]}
done
while true; do
(( ++min_cnt > ${#min_ver} )) && return 0
[[ ${min_ver[min_cnt]} = <-> ]] && break
done
(( part > min_ver[min_cnt] )) && return 0
(( part < min_ver[min_cnt] )) && return 1
part=''
done
}