]>
Commit | Line | Data |
---|---|---|
8868edaf CR |
1 | # This program is free software: you can redistribute it and/or modify |
2 | # it under the terms of the GNU General Public License as published by | |
3 | # the Free Software Foundation, either version 3 of the License, or | |
4 | # (at your option) any later version. | |
5 | # | |
6 | # This program is distributed in the hope that it will be useful, | |
7 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
8 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
9 | # GNU General Public License for more details. | |
10 | # | |
11 | # You should have received a copy of the GNU General Public License | |
12 | # along with this program. If not, see <http://www.gnu.org/licenses/>. | |
13 | # | |
ac50fbac CR |
14 | # if IFS side effects in ${IFS=} assignments take place, how do you cope with |
15 | # later changes to IFS in the same set of expansions? You've already | |
16 | # committed to using the first character of the (old) IFS to expand $* in | |
17 | # the previous expansions, and changing it to not include ' ', for instance, | |
18 | # results in the first couple of ${*} below not being split at all | |
19 | ||
20 | set -f -- a b c | |
21 | ||
22 | unset -v IFS | |
23 | printf '<%s> ' ${*}${IFS=}${*}${IFS:=-}"${*}" | |
24 | echo | |
25 | printf "after 1: IFS " | |
26 | echo "${IFS-unset}" | |
27 | recho "$*" | |
28 | ||
29 | set -f -- a 'b c' d | |
30 | unset -v IFS | |
31 | printf '<%s> ' ${*}${IFS=}${*}${IFS:=-}"${*}" | |
32 | echo | |
33 | printf "after 2: IFS " | |
34 | echo "${IFS-unset}" | |
35 | recho "$*" | |
36 | ||
37 | unset -v IFS | |
38 | recho $* | |
39 | recho "$*" | |
40 | ||
41 | IFS=' ' | |
42 | recho $* | |
43 | recho "$*" |