Commit 12ad79069d831d4fa92ea88bd4b7b39d057ae90f
2016-08-06T20:08:32
parse-datetime: add optional debug printing Print parsing information, warnings, and errors to stderr. * lib/parse-datetime.h (parse_datetimte_debug): New global variable. * lib/parse-datetime.y: (DEBUG_*): Macros calling debug functions if debugging is enabled. (PROGRESS*): Same as DEBUG, for progress reporting. (dbg_printf): Print message to stderr, with 'date' prefix. (struct parser_control): Add 'debug_*_seen' variables. (str_days): Converts day ordinal/number to string (e.g. 'last wed'). (debug_print_current_time, debug_print_relateive_time): Prints the current/relative date/time value of parser_control. (YACC parser syntax): Print parsed parts with DEBUG_* macros. (to_year): Warn about 2-digit year parsing. (yylex): Warn about unrecognized words. (get_effective_timezone): Returns current timezone in minutes. (debug_strf{time,date,datetime}): Convert 'struct tm' to string as clearly and unambigiously as possible. (debug_mktime_not_ok): Print detailed information about failed date/time values. (parse_datetime): Add DEBUG messages for failures, warnings. Add PROGRESS messages for status messages. * modules/parse-datetime: Add 'timegm', 'gettext-h' dependencies.