082180134
Denys Vlasenko
2009-06-03
Subject
hush: document a TODO in export builtin
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shell/hush.c+16 -2
| @@ -44,14 +44,28 @@ | |
| * | |
| * Bash stuff (maybe optionally enable?): | |
| * &> and >& redirection of stdout+stderr | |
| - | * Brace expansion |
| + | * Brace Expansion |
| * reserved words: [[ ]] function select | |
| * substrings ${var:1:5} | |
| * | |
| * TODOs: | |
| * grep for "TODO" and fix (some of them are easy) | |
| - | * builtins: ulimit |
| + | * builtins: ulimit, local |
| * follow IFS rules more precisely, including update semantics | |
| + | * export builtin should be special, its arguments are assignments |
| + | * and therefore expansion of them should be "one-word" expansion: |
| + | * $ export i=`echo 'a b'` # export has one arg: "i=a b" |
| + | * compare with: |
| + | * $ ls i=`echo 'a b'` # ls has two args: "i=a" and "b" |
| + | * ls: cannot access i=a: No such file or directory |
| + | * ls: cannot access b: No such file or directory |
| + | * Note1: same applies to local builtin when we'll have it. |
| + | * Note2: bash 3.2.33(1) does this only if export word itself |
| + | * is not quoted: |
| + | * $ export i=`echo 'aaa bbb'`; echo "$i" |
| + | * aaa bbb |
| + | * $ "export" i=`echo 'aaa bbb'`; echo "$i" |
| + | * aaa |
| * | |
| * Licensed under the GPL v2 or later, see the file LICENSE in this tarball. | |
| */ | |