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| author | Ron Yorston | 2015-07-19 11:12:29 +0100 |
|---|---|---|
| committer | Denys Vlasenko | 2015-07-19 22:34:13 +0200 |
| commit | 51aa861843002e92b605be840460e7141d4d86a2 (patch) | |
| tree | bf374b3a4748e8e597990f5dd619522f5778c9a7 /miscutils/less.c | |
| parent | 072fc60f29ee3a4ff38f095a9ef149b2e820c8c0 (diff) | |
| download | busybox-51aa861843002e92b605be840460e7141d4d86a2.zip busybox-51aa861843002e92b605be840460e7141d4d86a2.tar.gz | |
less: document -S flag and make it independently configurable
The -S flag, to cause long lines to be truncated, was enabled by
FEATURE_LESS_DASHCMD. This is non-obvious and -S is useful even
if the '-' command isn't enabled.
function old new delta
.rodata 156045 156077 +32
packed_usage 30223 30244 +21
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 2/0 up/down: 53/0) Total: 53 bytes
Signed-off-by: Ron Yorston <rmy@frippery.org>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'miscutils/less.c')
| -rw-r--r-- | miscutils/less.c | 22 |
1 files changed, 18 insertions, 4 deletions
diff --git a/miscutils/less.c b/miscutils/less.c index d5a68d1..c175565 100644 --- a/miscutils/less.c +++ b/miscutils/less.c @@ -48,6 +48,14 @@ //config: help //config: The -M/-m flag enables a more sophisticated status line. //config: +//config:config FEATURE_LESS_TRUNCATE +//config: bool "Enable -S" +//config: default y +//config: depends on LESS +//config: help +//config: The -S flag causes long lines to be truncated rather than +//config: wrapped. +//config: //config:config FEATURE_LESS_MARKS //config: bool "Enable marks" //config: default y @@ -98,7 +106,8 @@ //config: Enables "-N" command. //usage:#define less_trivial_usage -//usage: "[-E" IF_FEATURE_LESS_REGEXP("I")IF_FEATURE_LESS_FLAGS("Mm") "Nh~] [FILE]..." +//usage: "[-E" IF_FEATURE_LESS_REGEXP("I")IF_FEATURE_LESS_FLAGS("Mm") +//usage: "N" IF_FEATURE_LESS_TRUNCATE("S") "h~] [FILE]..." //usage:#define less_full_usage "\n\n" //usage: "View FILE (or stdin) one screenful at a time\n" //usage: "\n -E Quit once the end of a file is reached" @@ -110,6 +119,9 @@ //usage: "\n and percentage through the file" //usage: ) //usage: "\n -N Prefix line number to each line" +//usage: IF_FEATURE_LESS_TRUNCATE( +//usage: "\n -S Truncate long lines" +//usage: ) //usage: "\n -~ Suppress ~s displayed past EOF" #include <sched.h> /* sched_yield() */ @@ -144,7 +156,7 @@ enum { FLAG_N = 1 << 3, FLAG_TILDE = 1 << 4, FLAG_I = 1 << 5, - FLAG_S = (1 << 6) * ENABLE_FEATURE_LESS_DASHCMD, + FLAG_S = (1 << 6) * ENABLE_FEATURE_LESS_TRUNCATE, /* hijack command line options variable for internal state vars */ LESS_STATE_MATCH_BACKWARDS = 1 << 15, }; @@ -820,7 +832,7 @@ static void buffer_print(void) static void buffer_fill_and_print(void) { unsigned i; -#if ENABLE_FEATURE_LESS_DASHCMD +#if ENABLE_FEATURE_LESS_TRUNCATE int fpos = cur_fline; if (option_mask32 & FLAG_S) { @@ -1330,10 +1342,12 @@ static void flag_change(void) case '~': option_mask32 ^= FLAG_TILDE; break; +#if ENABLE_FEATURE_LESS_TRUNCATE case 'S': option_mask32 ^= FLAG_S; buffer_fill_and_print(); break; +#endif #if ENABLE_FEATURE_LESS_LINENUMS case 'N': option_mask32 ^= FLAG_N; @@ -1638,7 +1652,7 @@ int less_main(int argc, char **argv) * -s: condense many empty lines to one * (used by some setups for manpage display) */ - getopt32(argv, "EMmN~I" IF_FEATURE_LESS_DASHCMD("S") /*ignored:*/"s"); + getopt32(argv, "EMmN~I" IF_FEATURE_LESS_TRUNCATE("S") /*ignored:*/"s"); argc -= optind; argv += optind; num_files = argc; |