Run "make update-copyright" and then...
* gnulib: Update to latest with copyright year adjusted.
* tests/init.sh: Sync with gnulib to pick up copyright year.
* bootstrap: Likewise.
* testsuite/debug.pl: Don't use Data::Dump. Unnecessary.
That package, perl-Data-Dump, appear not to be default-installed
on at least a Fedora 29 beta system.
$ seq 3 | sed --debug -e 's/./--&--/ ; 2d'
SED PROGRAM:
s/./--&--/
2 d
INPUT: 'STDIN' line 1
PATTERN: 1
COMMAND: s/./--&--/
MATCHED REGEX REGISTERS
regex[0] = 0-1 '1'
PATTERN: --1--
COMMAND: 2 d
END-OF-CYCLE:
--1--
INPUT: 'STDIN' line 2
PATTERN: 2
COMMAND: s/./--&--/
MATCHED REGEX REGISTERS
regex[0] = 0-1 '2'
PATTERN: --2--
COMMAND: 2 d
END-OF-CYCLE:
INPUT: 'STDIN' line 3
PATTERN: 3
COMMAND: s/./--&--/
MATCHED REGEX REGISTERS
regex[0] = 0-1 '3'
PATTERN: --3--
COMMAND: 2 d
END-OF-CYCLE:
--3--
Discussed in https://lists.gnu.org/r/sed-devel/2018-07/msg00006.html
and https://lists.gnu.org/r/sed-devel/2018-10/msg00007.html .
* NEWS: Mention new option.
* doc/sed.texi (Program options): Mention new option.
* sed/debug.c: New unit with debug printing functions.
* sed/sed.h (debug_print_command, debug_print_char, debug_print_program,
debug): Declare functions and global variable.
(struct sed_cmd): Add label_name member variable.
* sed/compile.c (compile_program): Save the label's name.
(cleanup_program_filenames): extracted function to free filenames.
(check_final_program) Don't delete the filenames, instead move it to ...
(finish_program) ... here.
* sed/execute.c (debug_print_end_of_cycle, debug_print_input,
debug_print_line): New debug functions (cannot be defined in debug.c as
execute's structures are private).
(execute_program, process_files): Call debug functions.
* sed/sed.c: (DEBUG_OPTION): New option for getoptlong.
(debug): New global variable.
(usage): Mention new option.
(main): Process new option and call debug functions if needed.
* testsuite/debug.pl: New tests.
* testsuite/local.mk (T): Add new tests.
