(Tracing): this new section, its former contents, and...
(Understanding): this new section.
* src/getargs.h, src/getargs.c (verbose_flag): Remove, replaced
by...
(report_flag): this.
Adjust all dependencies.
(report_args, report_types, report_argmatch): New.
(usage, getargs): Report/support -r, --report.
* src/options.h
(struct option_table_struct): Rename as..,
(struct option_table_s): this.
Rename the `set_flag' member to `flag' to match with getopt_long's
struct.
* src/options.c (option_table): Split verbose into an entry for
%verbose, and another for --verbose.
Support --report/-r, so remove -r from the obsolete --raw.
* src/print.c: Attach full item sets and lookaheads reports to
report_flag instead of trace_flag.
* lib/argmatch.h, lib/argmatch.c: New, from Fileutils 4.1.
* src/options.c (longopts): Support `--output' and `%output'.
(usage): Adjust.
* src/lex.h (tok_setopt): Remove, replaced with...
(tok_intopt, tok_stropt): these new guys.
* src/lex.c (getopt.h): Not needed.
(token_buffer, unlexed_token_buffer): Not const.
(percent_table): Promote `-' over `_' in directive names.
Active `%name-prefix', `file-prefix', and `output'.
(parse_percent_token): Accept possible arguments to directives.
Promote `-' over `_' in directive names.
is now an option_table_struct*.
(option_strcmp): New function option_strcmp.
(parse_percent_token): Call option_strcmp.
* src/getargs.c (xalloc.h, options.h): Include it.
(getargs): Call create_long_option_table.
(getargs): Free longopts at the end of the function.
(shortopts): Move in options.c.
* src/options.c (create_long_option_table): New function. Convert
information from option_table to option structure.
* src/reader.c (options.h): Include it.
* src/Makefile.am: Adjust.
* src/options.c (option_table): Create from longopts and percent_table.
* src/getargs.c (longopts): Delete.
* src/lex.c (struct percent_table_struct): Delete.
(percent_table): Delete.
(options.h): Include it.
* src/options.c: Create.
* src/options.h: Create.
Declare enum opt_access_e.
Define struct option_table_struct.
