diff options
Diffstat (limited to 'package/busybox/config/shell')
| -rw-r--r-- | package/busybox/config/shell/Config.in | 81 |
1 files changed, 45 insertions, 36 deletions
diff --git a/package/busybox/config/shell/Config.in b/package/busybox/config/shell/Config.in index 4107e127d..233c3a8f4 100644 --- a/package/busybox/config/shell/Config.in +++ b/package/busybox/config/shell/Config.in @@ -84,22 +84,6 @@ config BUSYBOX_CONFIG_ASH_ALIAS help Enable alias support in the ash shell. -config BUSYBOX_CONFIG_ASH_MATH_SUPPORT - bool "Posix math support" - default y - depends on BUSYBOX_CONFIG_ASH - help - Enable math support in the ash shell. - -config BUSYBOX_CONFIG_ASH_MATH_SUPPORT_64 - bool "Extend Posix math support to 64 bit" - default y - depends on BUSYBOX_CONFIG_ASH_MATH_SUPPORT - help - Enable 64-bit math support in the ash shell. This will make - the shell slightly larger, but will allow computation with very - large numbers. - config BUSYBOX_CONFIG_ASH_GETOPTS bool "Builtin getopt to parse positional parameters" default y @@ -152,14 +136,14 @@ config BUSYBOX_CONFIG_ASH_OPTIMIZE_FOR_SIZE Compile ash for reduced size at the price of speed. config BUSYBOX_CONFIG_ASH_RANDOM_SUPPORT - bool "Pseudorandom generator and variable $RANDOM" + bool "Pseudorandom generator and $RANDOM variable" default n depends on BUSYBOX_CONFIG_ASH help Enable pseudorandom generator and dynamic variable "$RANDOM". Each read of "$RANDOM" will generate a new pseudorandom value. You can reset the generator by using a specified start value. - After "unset RANDOM" then generator will switch off and this + After "unset RANDOM" the generator will switch off and this variable will no longer have special treatment. config BUSYBOX_CONFIG_ASH_EXPAND_PRMT @@ -167,7 +151,7 @@ config BUSYBOX_CONFIG_ASH_EXPAND_PRMT default y depends on BUSYBOX_CONFIG_ASH help - "PS#" may be contain volatile content, such as backquote commands. + "PS#" may contain volatile content, such as backquote commands. This option recreates the prompt string from the environment variable each time it is displayed. @@ -175,16 +159,15 @@ config BUSYBOX_CONFIG_HUSH bool "hush" default n help - hush is a very small shell (just 18k) and it has fairly complete - Bourne shell grammar. It even handles all the normal flow control - options such as if/then/elif/else/fi, for/in/do/done, while loops, - case/esac. + hush is a small shell (22k). It handles the normal flow control + constructs such as if/then/elif/else/fi, for/in/do/done, while loops, + case/esac. Redirections, here documents, $((arithmetic)) + and functions are supported. - It uses only vfork, so it can be used on uClinux systems. + It will compile and work on no-mmu systems. - It does not handle select, functions, here documents ( << - word ), arithmetic expansion, aliases, brace expansion, tilde - expansion, &> and >& redirection of stdout+stderr, etc. + It does not handle select, aliases, brace expansion, + tilde expansion, &>file and >&file redirection of stdout+stderr. config BUSYBOX_CONFIG_HUSH_HELP bool "help builtin" @@ -234,7 +217,6 @@ config BUSYBOX_CONFIG_HUSH_LOOPS depends on BUSYBOX_CONFIG_HUSH help Enable for, while and until loops in hush. - As of 2008-07, break and continue statements are not supported. config BUSYBOX_CONFIG_HUSH_CASE bool "Support case ... esac statement" @@ -243,27 +225,54 @@ config BUSYBOX_CONFIG_HUSH_CASE help Enable case ... esac statement in hush. +400 bytes. +config BUSYBOX_CONFIG_HUSH_FUNCTIONS + bool "Support funcname() { commands; } syntax" + default n + depends on BUSYBOX_CONFIG_HUSH + help + Enable support for shell functions in hush. +800 bytes. + config BUSYBOX_CONFIG_LASH - bool "lash" + bool "lash (deprecated: aliased to hush)" default n select BUSYBOX_CONFIG_HUSH help lash is deprecated and will be removed, please migrate to hush. config BUSYBOX_CONFIG_MSH - bool "msh" + bool "msh (deprecated: please use hush)" default n help - The minix shell (adds just 30k) is quite complete and handles things - like for/do/done, case/esac and all the things you expect a Bourne - shell to do. It is not always pedantically correct about Bourne - shell grammar (try running the shell testscript "tests/sh.testcases" - on it and compare vs bash) but for most things it works quite well. - It uses only vfork, so it can be used on uClinux systems. + msh is deprecated and will be removed, please migrate to hush. + If there is a feature msh has but hush does not, please let us know. + +# The minix shell (adds just 30k) is quite complete and handles things +# like for/do/done, case/esac and all the things you expect a Bourne +# shell to do. It is not always pedantically correct about Bourne +# shell grammar (try running the shell testscript "tests/sh.testcases" +# on it and compare vs bash) but for most things it works quite well. +# It uses only vfork, so it can be used on uClinux systems. + comment "Bourne Shell Options" depends on BUSYBOX_CONFIG_MSH || BUSYBOX_CONFIG_LASH || BUSYBOX_CONFIG_HUSH || BUSYBOX_CONFIG_ASH +config BUSYBOX_CONFIG_SH_MATH_SUPPORT + bool "POSIX math support" + default y + depends on BUSYBOX_CONFIG_ASH || BUSYBOX_CONFIG_HUSH + help + Enable math support in the shell via $((...)) syntax. + +config BUSYBOX_CONFIG_SH_MATH_SUPPORT_64 + bool "Extend POSIX math support to 64 bit" + default y + depends on BUSYBOX_CONFIG_SH_MATH_SUPPORT + help + Enable 64-bit math support in the shell. This will make the shell + slightly larger, but will allow computation with very large numbers. + This is not in POSIX, so do not rely on this in portable code. + config BUSYBOX_CONFIG_FEATURE_SH_EXTRA_QUIET bool "Hide message on interactive shell startup" default n |