2 # For a description of the syntax of this configuration file,
3 # see scripts/kbuild/config-language.txt.
14 Awk is used as a pattern scanning and processing language. This is
15 the BusyBox implementation of that programming language.
17 config FEATURE_AWK_LIBM
18 bool "Enable math functions (requires libm)"
22 Enable math functions of the Awk programming language.
23 NOTE: This will require libm to be present for linking.
29 cmp is used to compare two files and returns the result
36 diff compares two files or directories and outputs the
37 differences between them in a form that can be given to
40 config FEATURE_DIFF_LONG_OPTIONS
41 bool "Enable long options"
43 depends on DIFF && LONG_OPTS
45 Enable use of long options.
47 config FEATURE_DIFF_DIR
48 bool "Enable directory support"
52 This option enables support for directory and subdirectory
59 The original 1970's Unix text editor, from the days of teletypes.
60 Small, simple, evil. Part of SUSv3. If you're not already using
61 this, you don't need it.
67 Apply a unified diff formatted patch.
73 sed is used to perform text transformations on a file
74 or input from a pipeline.
80 'vi' is a text editor. More specifically, it is the One True
81 text editor <grin>. It does, however, have a rather steep
82 learning curve. If you are not already comfortable with 'vi'
83 you may wish to use something else.
85 config FEATURE_VI_MAX_LEN
86 int "Maximum screen width in vi"
91 Contrary to what you may think, this is not eating much.
92 Make it smaller than 4k only if you are very limited on memory.
94 config FEATURE_VI_8BIT
95 bool "Allow vi to display 8-bit chars (otherwise shows dots)"
99 If your terminal can display characters with high bit set,
100 you may want to enable this. Note: vi is not Unicode-capable.
101 If your terminal combines several 8-bit bytes into one character
102 (as in Unicode mode), this will not work properly.
104 config FEATURE_VI_COLON
105 bool "Enable \":\" colon commands (no \"ex\" mode)"
109 Enable a limited set of colon commands for vi. This does not
110 provide an "ex" mode.
112 config FEATURE_VI_YANKMARK
113 bool "Enable yank/put commands and mark cmds"
117 This will enable you to use yank and put, as well as mark in
120 config FEATURE_VI_SEARCH
121 bool "Enable search and replace cmds"
125 Select this if you wish to be able to do search and replace in
128 config FEATURE_VI_USE_SIGNALS
133 Selecting this option will make busybox vi signal aware. This will
134 make busybox vi support SIGWINCH to deal with Window Changes, catch
135 Ctrl-Z and Ctrl-C and alarms.
137 config FEATURE_VI_DOT_CMD
138 bool "Remember previous cmd and \".\" cmd"
142 Make busybox vi remember the last command and be able to repeat it.
144 config FEATURE_VI_READONLY
145 bool "Enable -R option and \"view\" mode"
149 Enable the read-only command line option, which allows the user to
150 open a file in read-only mode.
152 config FEATURE_VI_SETOPTS
153 bool "Enable set-able options, ai ic showmatch"
157 Enable the editor to set some (ai, ic, showmatch) options.
159 config FEATURE_VI_SET
160 bool "Support for :set"
166 config FEATURE_VI_WIN_RESIZE
167 bool "Handle window resize"
171 Make busybox vi behave nicely with terminals that get resized.
173 config FEATURE_VI_ASK_TERMINAL
174 bool "Use 'tell me cursor position' ESC sequence to measure window"
178 If terminal size can't be retrieved and $LINES/$COLUMNS are not set,
179 this option makes vi perform a last-ditch effort to find it:
180 vi positions cursor to 999,999 and asks terminal to report real
181 cursor position using "ESC [ 6 n" escape sequence, then reads stdin.
183 This is not clean but helps a lot on serial lines and such.
185 config FEATURE_VI_OPTIMIZE_CURSOR
186 bool "Optimize cursor movement"
190 This will make the cursor movement faster, but requires more memory
191 and it makes the applet a tiny bit larger.
193 config FEATURE_ALLOW_EXEC
194 bool "Allow vi and awk to execute shell commands"
198 Enables vi and awk features which allows user to execute
199 shell commands (using system() C call).