FM / at

/usr/share/doc/at

Name	Size	Mode	Actions
changelog.Debian.gz	1139	0644	edit dl rm
copyright	3730	0644	edit dl rm
Problems	387	0644	edit dl rm
README	1424	0644	edit dl rm
timespec	2451	0644	edit dl rm
TODO.Debian	803	0644	edit dl rm

Edit: /usr/share/doc/at/timespec (2451B)

/* 
 * Abbreviated version of the yacc grammar used by at(1).
 */

%token  <charval> DOTTEDDATE
%token  <charval> HYPHENDATE
%token  <charval> HOURMIN
%token  <charval> INT1DIGIT
%token  <charval> INT2DIGIT
%token  <charval> INT4DIGIT
%token  <charval> INT5_8DIGIT
%token  <charval> INT
%token  NOW
%token  AM PM
%token  NOON MIDNIGHT TEATIME
%token  SUN MON TUE WED THU FRI SAT
%token  TODAY TOMORROW
%token  NEXT
%token  MINUTE HOUR DAY WEEK MONTH YEAR
%token  JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
%token  UTC

%type <charval> concatenated_date
%type <charval> hr24clock_hr_min
%type <charval> int1_2digit
%type <charval> int2_or_4digit
%type <charval> integer
%type <intval> inc_dec_period
%type <intval> inc_dec_number
%type <intval> day_of_week

%start timespec
%%
timespec        : spec_base
		| spec_base inc_or_dec
                ;

spec_base	: date
		| time
                | time date
                | NOW
		;

time		: time_base
		| time_base timezone_name
                ;

hr24clock_hr_min: INT4DIGIT
		;

time_hour	: int1_2digit
		;

time_hour_min	: HOURMIN
		;

am_pm		: AM
		| PM
		;

timezone_name	: UTC
		;

concatenated_date: INT5_8DIGIT
		;

month_name	: JAN | FEB | MAR | APR | MAY | JUN
		| JUL | AUG | SEP | OCT | NOV | DEC
		;

month_number	: int1_2digit
		;

day_number	: int1_2digit
		;

year_number	: int2_or_4digit
		;

day_of_week	: SUN | MON | TUE | WED | THU | FRI | SAT
		;

inc_or_dec	: increment | decrement
		;

increment       : '+' inc_dec_number inc_dec_period
                ;

decrement	: '-' inc_dec_number inc_dec_period
		;

inc_dec_number	: integer
		;

int1_2digit	: INT1DIGIT | INT2DIGIT
		;

int2_or_4digit	: INT2DIGIT | INT4DIGIT
		;

integer		: INT | INT1DIGIT | INT2DIGIT | INT4DIGIT | INT5_8DIGIT
		;

cmd: