33// that can be found in the LICENSE file.
44module time
55
6- pub struct TimeParseError {
7- msg string
8- code int
9- }
10-
11- fn error_invalid_time (code int ) IError {
12- return TimeParseError{
13- msg: 'Invalid time format code: $code '
14- code: code
15- }
16- }
17-
18- // parse returns time from a date string in "YYYY-MM-DD HH:MM:SS" format.
19- pub fn parse (s string ) ? Time {
20- if s == '' {
21- return error_invalid_time (0 )
22- }
23- pos := s.index (' ' ) or { return error_invalid_time (1 ) }
24- symd := s[..pos]
25- ymd := symd.split ('-' )
26- if ymd.len != 3 {
27- return error_invalid_time (2 )
28- }
29- shms := s[pos..]
30- hms := shms.split (':' )
31- hour_ := hms[0 ][1 ..]
32- minute_ := hms[1 ]
33- second_ := hms[2 ]
34- //
35- iyear := ymd[0 ].int ()
36- imonth := ymd[1 ].int ()
37- iday := ymd[2 ].int ()
38- ihour := hour_.int ()
39- iminute := minute_.int ()
40- isecond := second_.int ()
41- // eprintln('>> iyear: $iyear | imonth: $imonth | iday: $iday | ihour: $ihour | iminute: $iminute | isecond: $isecond')
42- if iyear > 9999 || iyear < - 9999 {
43- return error_invalid_time (3 )
44- }
45- if imonth > 12 || imonth < 1 {
46- return error_invalid_time (4 )
47- }
48- if iday > 31 || iday < 1 {
49- return error_invalid_time (5 )
50- }
51- if ihour > 23 || ihour < 0 {
52- return error_invalid_time (6 )
53- }
54- if iminute > 59 || iminute < 0 {
55- return error_invalid_time (7 )
56- }
57- if isecond > 59 || isecond < 0 {
58- return error_invalid_time (8 )
59- }
60- res := new_time (Time{
61- year: iyear
62- month: imonth
63- day: iday
64- hour: ihour
65- minute: iminute
66- second: isecond
67- })
68- return res
69- }
70-
716// parse_rfc2822 returns time from a date string in RFC 2822 datetime format.
727pub fn parse_rfc2822 (s string ) ? Time {
738 if s == '' {
@@ -87,56 +22,6 @@ pub fn parse_rfc2822(s string) ?Time {
8722 }
8823}
8924
90- // parse_rfc3339 returns time from a date string in RFC 3339 datetime format.
91- pub fn parse_rfc3339 (s string ) ? Time {
92- if s == '' {
93- return error_invalid_time (0 )
94- }
95- mut t := parse_iso8601 (s) or { Time{} }
96- // If parse_iso8601 DID NOT result in default values (i.e. date was parsed correctly)
97- if t != Time{} {
98- return t
99- }
100-
101- t_i := s.index ('T' ) or { - 1 }
102- parts := if t_i != - 1 { [s[..t_i], s[t_i + 1 ..]] } else { s.split (' ' ) }
103-
104- // Check if s is date only
105- if ! parts[0 ].contains_any (' Z' ) && parts[0 ].contains ('-' ) {
106- year , month , day := parse_iso8601_date (s) ?
107- t = new_time (Time{
108- year: year
109- month: month
110- day: day
111- })
112- return t
113- }
114- // Check if s is time only
115- if ! parts[0 ].contains ('-' ) && parts[0 ].contains (':' ) {
116- mut hour_, mut minute_, mut second_, mut microsecond_, mut unix_offset, mut is_local_time := 0 , 0 , 0 , 0 , i64 (0 ), true
117- hour_ , minute_ , second_ , microsecond_ , unix_offset , is_local_time = parse_iso8601_time (parts[0 ]) ?
118- t = new_time (Time{
119- hour: hour_
120- minute: minute_
121- second: second_
122- microsecond: microsecond_
123- })
124- if is_local_time {
125- return t // Time is already local time
126- }
127- mut unix_time := t.unix
128- if unix_offset < 0 {
129- unix_time - = (- unix_offset)
130- } else if unix_offset > 0 {
131- unix_time + = unix_offset
132- }
133- t = unix2 (i64 (unix_time), t.microsecond)
134- return t
135- }
136-
137- return error_invalid_time (9 )
138- }
139-
14025// ----- iso8601 -----
14126fn parse_iso8601_date (s string ) ? (int , int , int ) {
14227 year , month , day , dummy := 0 , 0 , 0 , byte (0 )
@@ -190,44 +75,3 @@ fn parse_iso8601_time(s string) ?(int, int, int, int, i64, bool) {
19075 }
19176 return hour_, minute_, second_, microsecond_, unix_offset, is_local_time
19277}
193-
194- // parse_iso8601 parses rfc8601 time format yyyy-MM-ddTHH:mm:ss.dddddd+dd:dd as local time
195- // the fraction part is difference in milli seconds and the last part is offset
196- // from UTC time and can be both +/- HH:mm
197- // remarks: not all iso8601 is supported
198- // also checks and support for leapseconds should be added in future PR
199- pub fn parse_iso8601 (s string ) ? Time {
200- if s == '' {
201- return error_invalid_time (0 )
202- }
203- t_i := s.index ('T' ) or { - 1 }
204- parts := if t_i != - 1 { [s[..t_i], s[t_i + 1 ..]] } else { s.split (' ' ) }
205- if ! (parts.len == 1 || parts.len == 2 ) {
206- return error_invalid_time (12 )
207- }
208- year , month , day := parse_iso8601_date (parts[0 ]) ?
209- mut hour_, mut minute_, mut second_, mut microsecond_, mut unix_offset, mut is_local_time := 0 , 0 , 0 , 0 , i64 (0 ), true
210- if parts.len == 2 {
211- hour_ , minute_ , second_ , microsecond_ , unix_offset , is_local_time = parse_iso8601_time (parts[1 ]) ?
212- }
213- mut t := new_time (Time{
214- year: year
215- month: month
216- day: day
217- hour: hour_
218- minute: minute_
219- second: second_
220- microsecond: microsecond_
221- })
222- if is_local_time {
223- return t // Time already local time
224- }
225- mut unix_time := t.unix
226- if unix_offset < 0 {
227- unix_time - = (- unix_offset)
228- } else if unix_offset > 0 {
229- unix_time + = unix_offset
230- }
231- t = unix2 (i64 (unix_time), t.microsecond)
232- return t
233- }
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