349ef96bb
Denys Vlasenko
2010-05-21
Subject
hush: reorganized TODO comment at top
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shell/hush.c+12 -14
| @@ -37,9 +37,14 @@ | |
| * handle the recursion implicit in the various substitutions, especially | |
| * across continuation lines. | |
| * | |
| - | * POSIX syntax not implemented: |
| + | * TODOs: |
| + | * grep for "TODO" and fix (some of them are easy) |
| + | * special variables (done: PWD, PPID, RANDOM) |
| + | * tilde expansion |
| * aliases | |
| - | * Tilde Expansion |
| + | * follow IFS rules more precisely, including update semantics |
| + | * builtins mandated by standards we don't support: |
| + | * [un]alias, command, fc, getopts, newgrp, readonly, times |
| * | |
| * Bash compat TODO: | |
| * redirection of stdout+stderr: &> and >& | |
| @@ -49,20 +54,13 @@ | |
| * process substitution: <(list) and >(list) | |
| * =~: regex operator | |
| * let EXPR [EXPR...] | |
| - | * Each EXPR is an arithmetic expression (ARITHMETIC EVALUATION) |
| - | * If the last arg evaluates to 0, let returns 1; 0 otherwise. |
| - | * NB: let `echo 'a=a + 1'` - error (IOW: multi-word expansion is used) |
| + | * Each EXPR is an arithmetic expression (ARITHMETIC EVALUATION) |
| + | * If the last arg evaluates to 0, let returns 1; 0 otherwise. |
| + | * NB: let `echo 'a=a + 1'` - error (IOW: multi-word expansion is used) |
| * ((EXPR)) | |
| - | * The EXPR is evaluated according to ARITHMETIC EVALUATION. |
| - | * This is exactly equivalent to let "EXPR". |
| + | * The EXPR is evaluated according to ARITHMETIC EVALUATION. |
| + | * This is exactly equivalent to let "EXPR". |
| * $[EXPR]: synonym for $((EXPR)) | |
| - | * |
| - | * TODOs: |
| - | * grep for "TODO" and fix (some of them are easy) |
| - | * special variables (done: PWD, PPID, RANDOM) |
| - | * follow IFS rules more precisely, including update semantics |
| - | * builtins mandated by standards we don't support: |
| - | * [un]alias, command, fc, getopts, newgrp, readonly, times |
| * 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" | |