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readline: use a custom extension in LS_COLORS to set the colored completion prefix, if present

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This commit is contained in:
Chet Ramey
2021-11-16 09:57:07 -05:00
parent d384b92874
commit e59452c752
34 changed files with 27226 additions and 25555 deletions
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lib/readline/colors.c
+18 -1
View File
@@ -73,6 +73,8 @@
static bool is_colored (enum indicator_no type);
static void restore_default_color (void);
#define RL_COLOR_PREFIX_EXTENSION "readline-colored-completion-prefix"
COLOR_EXT_TYPE *_rl_color_ext_list = 0;
/* Output a color indicator (which may contain nulls). */
@@ -110,13 +112,28 @@ _rl_set_normal_color (void)
}
}
static struct bin_str *
_rl_custom_readline_prefix (void)
{
size_t len;
COLOR_EXT_TYPE *ext;
len = strlen (RL_COLOR_PREFIX_EXTENSION);
for (ext = _rl_color_ext_list; ext; ext = ext->next)
if (ext->ext.len == len && STREQ (ext->ext.string, RL_COLOR_PREFIX_EXTENSION))
return (&ext->seq);
return (NULL);
}
bool
_rl_print_prefix_color (void)
{
struct bin_str *s;
/* What do we want to use for the prefix? Let's try cyan first, see colors.h */
s = &_rl_color_indicator[C_PREFIX];
s = _rl_custom_readline_prefix ();
if (s == 0)
s = &_rl_color_indicator[C_PREFIX];
if (s->string != NULL)
{
if (is_colored (C_NORM))
lib/readline/doc/readline.3
+5 -2
View File
@@ -6,9 +6,9 @@
.\" Case Western Reserve University
.\" chet.ramey@case.edu
.\"
.\" Last Change: Wed Jun 16 09:49:37 EDT 2021
.\" Last Change: Mon Nov 15 17:06:54 EST 2021
.\"
.TH READLINE 3 "2021 June 16" "GNU Readline 8.1"
.TH READLINE 3 "2021 November 15" "GNU Readline 8.1"
.\"
.\" File Name macro. This used to be `.PN', for Path Name,
.\" but Sun doesn't seem to like that very much.
@@ -359,6 +359,9 @@ If set to \fBOn\fP, when listing completions, readline displays the
common prefix of the set of possible completions using a different color.
The color definitions are taken from the value of the \fBLS_COLORS\fP
environment variable.
If there is a color definition in \fB$LS_COLORS\fP for the custom suffix
"readline-colored-completion-prefix", readline uses this color for
the common prefix instead of its default.
.TP
.B colored\-stats (Off)
If set to \fBOn\fP, readline displays possible completions using different
lib/readline/doc/rluser.texi
+3
View File
@@ -445,6 +445,9 @@ If set to @samp{on}, when listing completions, Readline displays the
common prefix of the set of possible completions using a different color.
The color definitions are taken from the value of the @env{LS_COLORS}
environment variable.
If there is a color definition in @env{LS_COLORS} for the custom suffix
@samp{readline-colored-completion-prefix}, Readline uses this color for
the common prefix instead of its default.
The default is @samp{off}.
@item colored-stats
lib/readline/doc/version.texi
+3 -3
View File
@@ -4,7 +4,7 @@ Copyright (C) 1988-2021 Free Software Foundation, Inc.
@set EDITION 8.1
@set VERSION 8.1
@set UPDATED 16 June 2021
@set UPDATED-MONTH June 2021
@set UPDATED 15 November 2021
@set UPDATED-MONTH November 2021
@set LASTCHANGE Wed Jun 16 09:50:11 EDT 2021
@set LASTCHANGE Mon Nov 15 17:05:28 EST 2021