Mercurial > hg > ltpda
comparison m-toolbox/classes/@time/parse.m @ 0:f0afece42f48
Import.
| author | Daniele Nicolodi <nicolodi@science.unitn.it> |
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| date | Wed, 23 Nov 2011 19:22:13 +0100 |
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| children |
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| -1:000000000000 | 0:f0afece42f48 |
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| 1 function msec = parse(str, format, timezone) | |
| 2 | |
| 3 % second and third arguments are optional | |
| 4 if nargin < 3 | |
| 5 timezone = ''; | |
| 6 end | |
| 7 if nargin < 2 | |
| 8 format = ''; | |
| 9 end | |
| 10 | |
| 11 % default timezone | |
| 12 if isempty(timezone) | |
| 13 timezone = time.timezone; | |
| 14 end | |
| 15 % convert string timezone into java object | |
| 16 if ischar(timezone) | |
| 17 timezone = java.util.TimeZone.getTimeZone(timezone); | |
| 18 end | |
| 19 | |
| 20 % obtain a java time format description to use for parsing | |
| 21 if isempty(format) | |
| 22 % infere it from the string | |
| 23 format = parse_time_string(str); | |
| 24 else | |
| 25 % convert a given MATLAB time format into a Java one | |
| 26 format = time.matfrmt2javafrmt(format); | |
| 27 end | |
| 28 | |
| 29 % parse the string accordingly to the corrent format and timezone | |
| 30 tformat = java.text.SimpleDateFormat(format, java.util.Locale.UK); | |
| 31 tformat.setTimeZone(timezone); | |
| 32 try | |
| 33 % It is necessary to replace 'GMT+03' by 'GMT+03:00' because java | |
| 34 % expects the ':00' at the end. | |
| 35 str = regexprep(str, '([gG][mM][tT][+-]\d\d?$)', '$1:00'); | |
| 36 msec = tformat.parse(str).getTime(); | |
| 37 catch | |
| 38 error('### unable to parse time string ''%s'' accordingly to format ''%s''', str, format); | |
| 39 end | |
| 40 | |
| 41 end | |
| 42 | |
| 43 | |
| 44 function str = parse_time_string(str) | |
| 45 | |
| 46 % supported patterns | |
| 47 parse = { '\s[gG][mM][tT][+-]?\d\d?$', ' z'; ... % GMT+1 or GMT+12 | |
| 48 '\s[gG][mM][tT][+-]?\d\d?:\d\d$', ' z'; ... % GMT+08:12 | |
| 49 '\s\w{3}$', ' z'; ... % PST | |
| 50 '\s[+-]\d{4}$', ' Z'; ... % +0800 | |
| 51 '\d{2}:\d{2}:\d{2}', 'HH:mm:ss'; ... | |
| 52 '\d{2}:\d{2}', 'mm:ss'; ... | |
| 53 '\d{2} \w{3} \d{4}', 'dd MMM yyyy'; ... | |
| 54 '\d{2}-\w{3}-\d{4}', 'dd-MMM-yyyy'; ... | |
| 55 '\d{2}.\w{3}.\d{4}', 'dd.MMM.yyyy'; ... | |
| 56 '\d{2}-\d{2}-\d{4}', 'dd-MM-yyyy'; ... | |
| 57 '\d{2}\.\d{2}\.\d{4}', 'dd.MM.yyyy'; ... | |
| 58 '\d{4}-\d{2}-\d{2}', 'yyyy-MM-dd'; ... | |
| 59 '\d{4}\.\d{2}\.\d{2}', 'yyyy.MM.dd'; ... | |
| 60 '\d{2}-\d{2}', 'MM-dd'; ... | |
| 61 '\.\d{1,3}', '.SSS'}; | |
| 62 | |
| 63 % try to match the patterns to the string and replace | |
| 64 % it with the corresponding Java time format descriptor | |
| 65 re = parse(:,1); | |
| 66 frmt = parse(:,2); | |
| 67 str = regexprep(str, re, frmt); | |
| 68 | |
| 69 end |