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Highlight source code using GNU Source Highlight

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This changes gdb to highlight source using GNU Source Highlight, if it
is available.

This affects the output of the "list" command and also the TUI source
window.

No new test because I didn't see a way to make it work when Source
Highlight is not found.

gdb/ChangeLog
2018-12-28  Tom Tromey  <tom@tromey.com>

	* utils.h (can_emit_style_escape): Declare.
	* utils.c (can_emit_style_escape): No longer static.
	* cli/cli-style.c (set_style_enabled): New function.
	(_initialize_cli_style): Use it.
	* tui/tui-winsource.c (tui_show_source_line): Use tui_puts.
	(tui_alloc_source_buffer): Change how source lines are allocated.
	* tui/tui-source.c (copy_source_line): New function.
	(tui_set_source_content): Use source cache.
	* tui/tui-io.h (tui_puts): Update.
	* tui/tui-io.c (tui_puts_internal): Add window parameter.
	(tui_puts): Likewise.
	(tui_redisplay_readline): Update.
	* tui/tui-data.c (free_content_elements): Change how source window
	contents are freed.
	* source.c (forget_cached_source_info): Clear the source cache.
	(print_source_lines_base): Use the source cache.
	* source-cache.h: New file.
	* source-cache.c: New file.
	* configure.ac: Check for GNU Source Highlight library.
	* configure: Update.
	* config.in: Update.
	* Makefile.in (SRCHIGH_LIBS, SRCHIGH_CFLAGS): New variables.
	(INTERNAL_CFLAGS_BASE): Add SRCHIGH_CFLAGS.
	(CLIBS): Add SRCHIGH_LIBS.
	(COMMON_SFILES): Add source-cache.c.
	(HFILES_NO_SRCDIR): Add source-cache.h.
This commit is contained in:
Tom Tromey
2018-10-09 22:21:05 -06:00
parent 4a3045920b
commit 62f29fda90
16 changed files with 571 additions and 198 deletions
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30
gdb/configure vendored
View File

@@ -701,6 +701,8 @@ ALLOCA
LTLIBIPT
LIBIPT
HAVE_LIBIPT
SRCHIGH_CFLAGS
SRCHIGH_LIBS
HAVE_GUILE_FALSE
HAVE_GUILE_TRUE
GUILE_LIBS
@@ -11469,6 +11471,34 @@ else
fi
# ---------------------------- #
# Check for source highlight. #
# ---------------------------- #
SRCHIGH_LIBS=
SRCHIGH_CFLAGS=
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for source highlight" >&5
$as_echo_n "checking for source highlight... " >&6; }
if test "${pkg_config_prog_path}" = "missing"; then
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no - pkg-config not found" >&5
$as_echo "no - pkg-config not found" >&6; }
else
if ${pkg_config_prog_path} --exists source-highlight; then
SRCHIGH_CFLAGS=`${pkg_config_prog_path} --cflags source-highlight`
SRCHIGH_LIBS=`${pkg_config_prog_path} --libs source-highlight`
$as_echo "#define HAVE_SOURCE_HIGHLIGHT 1" >>confdefs.h
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi
fi
# --------------------- #
# Check for libmcheck. #
# --------------------- #