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+/*
+* Portions are Copyright (C) 2007 Google Inc
+*
+* ***** BEGIN LICENSE BLOCK *****
+* Version: MPL 1.1/GPL 2.0/LGPL 2.1
+*
+* The contents of this file are subject to the Mozilla Public License Version
+* 1.1 (the "License"); you may not use this file except in compliance with
+* the License. You may obtain a copy of the License at
+* http://www.mozilla.org/MPL/
+*
+* Software distributed under the License is distributed on an "AS IS" basis,
+* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+* for the specific language governing rights and limitations under the
+* License.
+*
+* The Original Code is the Netscape Portable Runtime (NSPR).
+*
+* The Initial Developer of the Original Code is
+* Netscape Communications Corporation.
+* Portions created by the Initial Developer are Copyright (C) 1998-2000
+* the Initial Developer. All Rights Reserved.
+*
+* Contributor(s):
+*
+* Alternatively, the contents of this file may be used under the terms of
+* either the GNU General Public License Version 2 or later (the "GPL"), or
+* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+* in which case the provisions of the GPL or the LGPL are applicable instead
+* of those above. If you wish to allow use of your version of this file only
+* under the terms of either the GPL or the LGPL, and not to allow others to
+* use your version of this file under the terms of the MPL, indicate your
+* decision by deleting the provisions above and replace them with the notice
+* and other provisions required by the GPL or the LGPL. If you do not delete
+* the provisions above, a recipient may use your version of this file under
+* the terms of any one of the MPL, the GPL or the LGPL.
+*
+* ***** END LICENSE BLOCK *****
+*
+*/
+
+/*
+ * prtime.cc --
+ * NOTE: The original nspr file name is prtime.c
+ *
+ * NSPR date and time functions
+ *
+ * CVS revision 3.31
+ */
+
+/*
+* The following functions were copied from the NSPR prtime.c file.
+* PR_ParseTimeString
+* PR_ImplodeTime
+* This was modified to use the Win32 SYSTEMTIME/FILETIME structures
+* and the timezone offsets are applied to the FILETIME structure.
+* All types and defines have been defined in the base/third_party/prtime.h file
+* These have been copied from the following nspr files. We have only copied over
+* the types we need.
+* 1. prtime.h
+* 2. prtypes.h
+* 3. prlong.h
+*/
+
+#include <windows.h>
+#include <time.h>
+#include "base/third_party/nspr/prtime.h"
+
+/*
+ *------------------------------------------------------------------------
+ *
+ * PR_ImplodeTime --
+ *
+ * Cf. time_t mktime(struct tm *tp)
+ * Note that 1 year has < 2^25 seconds. So an PRInt32 is large enough.
+ *
+ *------------------------------------------------------------------------
+ */
+PRTime
+PR_ImplodeTime(const PRExplodedTime *exploded)
+{
+ // Create the system struct representing our exploded time.
+ SYSTEMTIME st = {0};
+ FILETIME ft = {0};
+ ULARGE_INTEGER uli = {0};
+
+ st.wYear = exploded->tm_year;
+ st.wMonth = exploded->tm_month + 1;
+ st.wDayOfWeek = exploded->tm_wday;
+ st.wDay = exploded->tm_mday;
+ st.wHour = exploded->tm_hour;
+ st.wMinute = exploded->tm_min;
+ st.wSecond = exploded->tm_sec;
+ st.wMilliseconds = exploded->tm_usec/1000;
+ // Convert to FILETIME.
+ if (!SystemTimeToFileTime(&st, &ft)) {
+ NOTREACHED() << "Unable to convert time";
+ return 0;
+ }
+ // Apply offsets.
+ uli.LowPart = ft.dwLowDateTime;
+ uli.HighPart = ft.dwHighDateTime;
+ // From second to 100-ns
+ uli.QuadPart -=
+ (exploded->tm_params.tp_gmt_offset +
+ exploded->tm_params.tp_dst_offset) * 10000000i64; // 7 zeros
+ // Convert to PRTime
+ uli.QuadPart -= 116444736000000000i64; // from Windows epoch to NSPR epoch
+ uli.QuadPart /= 10; // from 100-nanosecond to microsecond
+ return (PRTime)uli.QuadPart;
+}
+
+/*
+ * The following code implements PR_ParseTimeString(). It is based on
+ * ns/lib/xp/xp_time.c, revision 1.25, by Jamie Zawinski <jwz@netscape.com>.
+ */
+
+/*
+ * We only recognize the abbreviations of a small subset of time zones
+ * in North America, Europe, and Japan.
+ *
+ * PST/PDT: Pacific Standard/Daylight Time
+ * MST/MDT: Mountain Standard/Daylight Time
+ * CST/CDT: Central Standard/Daylight Time
+ * EST/EDT: Eastern Standard/Daylight Time
+ * AST: Atlantic Standard Time
+ * NST: Newfoundland Standard Time
+ * GMT: Greenwich Mean Time
+ * BST: British Summer Time
+ * MET: Middle Europe Time
+ * EET: Eastern Europe Time
+ * JST: Japan Standard Time
+ */
+
+typedef enum
+{
+ TT_UNKNOWN,
+
+ TT_SUN, TT_MON, TT_TUE, TT_WED, TT_THU, TT_FRI, TT_SAT,
+
+ TT_JAN, TT_FEB, TT_MAR, TT_APR, TT_MAY, TT_JUN,
+ TT_JUL, TT_AUG, TT_SEP, TT_OCT, TT_NOV, TT_DEC,
+
+ TT_PST, TT_PDT, TT_MST, TT_MDT, TT_CST, TT_CDT, TT_EST, TT_EDT,
+ TT_AST, TT_NST, TT_GMT, TT_BST, TT_MET, TT_EET, TT_JST
+} TIME_TOKEN;
+
+/*
+ * This parses a time/date string into a PRTime
+ * (microseconds after "1-Jan-1970 00:00:00 GMT").
+ * It returns PR_SUCCESS on success, and PR_FAILURE
+ * if the time/date string can't be parsed.
+ *
+ * Many formats are handled, including:
+ *
+ * 14 Apr 89 03:20:12
+ * 14 Apr 89 03:20 GMT
+ * Fri, 17 Mar 89 4:01:33
+ * Fri, 17 Mar 89 4:01 GMT
+ * Mon Jan 16 16:12 PDT 1989
+ * Mon Jan 16 16:12 +0130 1989
+ * 6 May 1992 16:41-JST (Wednesday)
+ * 22-AUG-1993 10:59:12.82
+ * 22-AUG-1993 10:59pm
+ * 22-AUG-1993 12:59am
+ * 22-AUG-1993 12:59 PM
+ * Friday, August 04, 1995 3:54 PM
+ * 06/21/95 04:24:34 PM
+ * 20/06/95 21:07
+ * 95-06-08 19:32:48 EDT
+ *
+ * If the input string doesn't contain a description of the timezone,
+ * we consult the `default_to_gmt' to decide whether the string should
+ * be interpreted relative to the local time zone (PR_FALSE) or GMT (PR_TRUE).
+ * The correct value for this argument depends on what standard specified
+ * the time string which you are parsing.
+ */
+
+PRStatus
+PR_ParseTimeString(
+ const char *string,
+ PRBool default_to_gmt,
+ PRTime *result)
+{
+ PRExplodedTime tm;
+ TIME_TOKEN dotw = TT_UNKNOWN;
+ TIME_TOKEN month = TT_UNKNOWN;
+ TIME_TOKEN zone = TT_UNKNOWN;
+ int zone_offset = -1;
+ int date = -1;
+ PRInt32 year = -1;
+ int hour = -1;
+ int min = -1;
+ int sec = -1;
+
+ const char *rest = string;
+
+#ifdef DEBUG
+ int iterations = 0;
+#endif
+
+ PR_ASSERT(string && result);
+ if (!string || !result) return PR_FAILURE;
+
+ while (*rest)
+ {
+
+#ifdef DEBUG
+ if (iterations++ > 1000)
+ {
+ PR_ASSERT(0);
+ return PR_FAILURE;
+ }
+#endif
+
+ switch (*rest)
+ {
+ case 'a': case 'A':
+ if (month == TT_UNKNOWN &&
+ (rest[1] == 'p' || rest[1] == 'P') &&
+ (rest[2] == 'r' || rest[2] == 'R'))
+ month = TT_APR;
+ else if (zone == TT_UNKNOWN &&
+ (rest[1] == 's' || rest[1] == 's') &&
+ (rest[2] == 't' || rest[2] == 'T'))
+ zone = TT_AST;
+ else if (month == TT_UNKNOWN &&
+ (rest[1] == 'u' || rest[1] == 'U') &&
+ (rest[2] == 'g' || rest[2] == 'G'))
+ month = TT_AUG;
+ break;
+ case 'b': case 'B':
+ if (zone == TT_UNKNOWN &&
+ (rest[1] == 's' || rest[1] == 'S') &&
+ (rest[2] == 't' || rest[2] == 'T'))
+ zone = TT_BST;
+ break;
+ case 'c': case 'C':
+ if (zone == TT_UNKNOWN &&
+ (rest[1] == 'd' || rest[1] == 'D') &&
+ (rest[2] == 't' || rest[2] == 'T'))
+ zone = TT_CDT;
+ else if (zone == TT_UNKNOWN &&
+ (rest[1] == 's' || rest[1] == 'S') &&
+ (rest[2] == 't' || rest[2] == 'T'))
+ zone = TT_CST;
+ break;
+ case 'd': case 'D':
+ if (month == TT_UNKNOWN &&
+ (rest[1] == 'e' || rest[1] == 'E') &&
+ (rest[2] == 'c' || rest[2] == 'C'))
+ month = TT_DEC;
+ break;
+ case 'e': case 'E':
+ if (zone == TT_UNKNOWN &&
+ (rest[1] == 'd' || rest[1] == 'D') &&
+ (rest[2] == 't' || rest[2] == 'T'))
+ zone = TT_EDT;
+ else if (zone == TT_UNKNOWN &&
+ (rest[1] == 'e' || rest[1] == 'E') &&
+ (rest[2] == 't' || rest[2] == 'T'))
+ zone = TT_EET;
+ else if (zone == TT_UNKNOWN &&
+ (rest[1] == 's' || rest[1] == 'S') &&
+ (rest[2] == 't' || rest[2] == 'T'))
+ zone = TT_EST;
+ break;
+ case 'f': case 'F':
+ if (month == TT_UNKNOWN &&
+ (rest[1] == 'e' || rest[1] == 'E') &&
+ (rest[2] == 'b' || rest[2] == 'B'))
+ month = TT_FEB;
+ else if (dotw == TT_UNKNOWN &&
+ (rest[1] == 'r' || rest[1] == 'R') &&
+ (rest[2] == 'i' || rest[2] == 'I'))
+ dotw = TT_FRI;
+ break;
+ case 'g': case 'G':
+ if (zone == TT_UNKNOWN &&
+ (rest[1] == 'm' || rest[1] == 'M') &&
+ (rest[2] == 't' || rest[2] == 'T'))
+ zone = TT_GMT;
+ break;
+ case 'j': case 'J':
+ if (month == TT_UNKNOWN &&
+ (rest[1] == 'a' || rest[1] == 'A') &&
+ (rest[2] == 'n' || rest[2] == 'N'))
+ month = TT_JAN;
+ else if (zone == TT_UNKNOWN &&
+ (rest[1] == 's' || rest[1] == 'S') &&
+ (rest[2] == 't' || rest[2] == 'T'))
+ zone = TT_JST;
+ else if (month == TT_UNKNOWN &&
+ (rest[1] == 'u' || rest[1] == 'U') &&
+ (rest[2] == 'l' || rest[2] == 'L'))
+ month = TT_JUL;
+ else if (month == TT_UNKNOWN &&
+ (rest[1] == 'u' || rest[1] == 'U') &&
+ (rest[2] == 'n' || rest[2] == 'N'))
+ month = TT_JUN;
+ break;
+ case 'm': case 'M':
+ if (month == TT_UNKNOWN &&
+ (rest[1] == 'a' || rest[1] == 'A') &&
+ (rest[2] == 'r' || rest[2] == 'R'))
+ month = TT_MAR;
+ else if (month == TT_UNKNOWN &&
+ (rest[1] == 'a' || rest[1] == 'A') &&
+ (rest[2] == 'y' || rest[2] == 'Y'))
+ month = TT_MAY;
+ else if (zone == TT_UNKNOWN &&
+ (rest[1] == 'd' || rest[1] == 'D') &&
+ (rest[2] == 't' || rest[2] == 'T'))
+ zone = TT_MDT;
+ else if (zone == TT_UNKNOWN &&
+ (rest[1] == 'e' || rest[1] == 'E') &&
+ (rest[2] == 't' || rest[2] == 'T'))
+ zone = TT_MET;
+ else if (dotw == TT_UNKNOWN &&
+ (rest[1] == 'o' || rest[1] == 'O') &&
+ (rest[2] == 'n' || rest[2] == 'N'))
+ dotw = TT_MON;
+ else if (zone == TT_UNKNOWN &&
+ (rest[1] == 's' || rest[1] == 'S') &&
+ (rest[2] == 't' || rest[2] == 'T'))
+ zone = TT_MST;
+ break;
+ case 'n': case 'N':
+ if (month == TT_UNKNOWN &&
+ (rest[1] == 'o' || rest[1] == 'O') &&
+ (rest[2] == 'v' || rest[2] == 'V'))
+ month = TT_NOV;
+ else if (zone == TT_UNKNOWN &&
+ (rest[1] == 's' || rest[1] == 'S') &&
+ (rest[2] == 't' || rest[2] == 'T'))
+ zone = TT_NST;
+ break;
+ case 'o': case 'O':
+ if (month == TT_UNKNOWN &&
+ (rest[1] == 'c' || rest[1] == 'C') &&
+ (rest[2] == 't' || rest[2] == 'T'))
+ month = TT_OCT;
+ break;
+ case 'p': case 'P':
+ if (zone == TT_UNKNOWN &&
+ (rest[1] == 'd' || rest[1] == 'D') &&
+ (rest[2] == 't' || rest[2] == 'T'))
+ zone = TT_PDT;
+ else if (zone == TT_UNKNOWN &&
+ (rest[1] == 's' || rest[1] == 'S') &&
+ (rest[2] == 't' || rest[2] == 'T'))
+ zone = TT_PST;
+ break;
+ case 's': case 'S':
+ if (dotw == TT_UNKNOWN &&
+ (rest[1] == 'a' || rest[1] == 'A') &&
+ (rest[2] == 't' || rest[2] == 'T'))
+ dotw = TT_SAT;
+ else if (month == TT_UNKNOWN &&
+ (rest[1] == 'e' || rest[1] == 'E') &&
+ (rest[2] == 'p' || rest[2] == 'P'))
+ month = TT_SEP;
+ else if (dotw == TT_UNKNOWN &&
+ (rest[1] == 'u' || rest[1] == 'U') &&
+ (rest[2] == 'n' || rest[2] == 'N'))
+ dotw = TT_SUN;
+ break;
+ case 't': case 'T':
+ if (dotw == TT_UNKNOWN &&
+ (rest[1] == 'h' || rest[1] == 'H') &&
+ (rest[2] == 'u' || rest[2] == 'U'))
+ dotw = TT_THU;
+ else if (dotw == TT_UNKNOWN &&
+ (rest[1] == 'u' || rest[1] == 'U') &&
+ (rest[2] == 'e' || rest[2] == 'E'))
+ dotw = TT_TUE;
+ break;
+ case 'u': case 'U':
+ if (zone == TT_UNKNOWN &&
+ (rest[1] == 't' || rest[1] == 'T') &&
+ !(rest[2] >= 'A' && rest[2] <= 'Z') &&
+ !(rest[2] >= 'a' && rest[2] <= 'z'))
+ /* UT is the same as GMT but UTx is not. */
+ zone = TT_GMT;
+ break;
+ case 'w': case 'W':
+ if (dotw == TT_UNKNOWN &&
+ (rest[1] == 'e' || rest[1] == 'E') &&
+ (rest[2] == 'd' || rest[2] == 'D'))
+ dotw = TT_WED;
+ break;
+
+ case '+': case '-':
+ {
+ const char *end;
+ int sign;
+ if (zone_offset != -1)
+ {
+ /* already got one... */
+ rest++;
+ break;
+ }
+ if (zone != TT_UNKNOWN && zone != TT_GMT)
+ {
+ /* GMT+0300 is legal, but PST+0300 is not. */
+ rest++;
+ break;
+ }
+
+ sign = ((*rest == '+') ? 1 : -1);
+ rest++; /* move over sign */
+ end = rest;
+ while (*end >= '0' && *end <= '9')
+ end++;
+ if (rest == end) /* no digits here */
+ break;
+
+ if ((end - rest) == 4)
+ /* offset in HHMM */
+ zone_offset = (((((rest[0]-'0')*10) + (rest[1]-'0')) * 60) +
+ (((rest[2]-'0')*10) + (rest[3]-'0')));
+ else if ((end - rest) == 2)
+ /* offset in hours */
+ zone_offset = (((rest[0]-'0')*10) + (rest[1]-'0')) * 60;
+ else if ((end - rest) == 1)
+ /* offset in hours */
+ zone_offset = (rest[0]-'0') * 60;
+ else
+ /* 3 or >4 */
+ break;
+
+ zone_offset *= sign;
+ zone = TT_GMT;
+ break;
+ }
+
+ case '0': case '1': case '2': case '3': case '4':
+ case '5': case '6': case '7': case '8': case '9':
+ {
+ int tmp_hour = -1;
+ int tmp_min = -1;
+ int tmp_sec = -1;
+ const char *end = rest + 1;
+ while (*end >= '0' && *end <= '9')
+ end++;
+
+ /* end is now the first character after a range of digits. */
+
+ if (*end == ':')
+ {
+ if (hour >= 0 && min >= 0) /* already got it */
+ break;
+
+ /* We have seen "[0-9]+:", so this is probably HH:MM[:SS] */
+ if ((end - rest) > 2)
+ /* it is [0-9][0-9][0-9]+: */
+ break;
+ else if ((end - rest) == 2)
+ tmp_hour = ((rest[0]-'0')*10 +
+ (rest[1]-'0'));
+ else
+ tmp_hour = (rest[0]-'0');
+
+ /* move over the colon, and parse minutes */
+
+ rest = ++end;
+ while (*end >= '0' && *end <= '9')
+ end++;
+
+ if (end == rest)
+ /* no digits after first colon? */
+ break;
+ else if ((end - rest) > 2)
+ /* it is [0-9][0-9][0-9]+: */
+ break;
+ else if ((end - rest) == 2)
+ tmp_min = ((rest[0]-'0')*10 +
+ (rest[1]-'0'));
+ else
+ tmp_min = (rest[0]-'0');
+
+ /* now go for seconds */
+ rest = end;
+ if (*rest == ':')
+ rest++;
+ end = rest;
+ while (*end >= '0' && *end <= '9')
+ end++;
+
+ if (end == rest)
+ /* no digits after second colon - that's ok. */
+ ;
+ else if ((end - rest) > 2)
+ /* it is [0-9][0-9][0-9]+: */
+ break;
+ else if ((end - rest) == 2)
+ tmp_sec = ((rest[0]-'0')*10 +
+ (rest[1]-'0'));
+ else
+ tmp_sec = (rest[0]-'0');
+
+ /* If we made it here, we've parsed hour and min,
+ and possibly sec, so it worked as a unit. */
+
+ /* skip over whitespace and see if there's an AM or PM
+ directly following the time.
+ */
+ if (tmp_hour <= 12)
+ {
+ const char *s = end;
+ while (*s && (*s == ' ' || *s == '\t'))
+ s++;
+ if ((s[0] == 'p' || s[0] == 'P') &&
+ (s[1] == 'm' || s[1] == 'M'))
+ /* 10:05pm == 22:05, and 12:05pm == 12:05 */
+ tmp_hour = (tmp_hour == 12 ? 12 : tmp_hour + 12);
+ else if (tmp_hour == 12 &&
+ (s[0] == 'a' || s[0] == 'A') &&
+ (s[1] == 'm' || s[1] == 'M'))
+ /* 12:05am == 00:05 */
+ tmp_hour = 0;
+ }
+
+ hour = tmp_hour;
+ min = tmp_min;
+ sec = tmp_sec;
+ rest = end;
+ break;
+ }
+ else if ((*end == '/' || *end == '-') &&
+ end[1] >= '0' && end[1] <= '9')
+ {
+ /* Perhaps this is 6/16/95, 16/6/95, 6-16-95, or 16-6-95
+ or even 95-06-05...
+ #### But it doesn't handle 1995-06-22.
+ */
+ int n1, n2, n3;
+ const char *s;
+
+ if (month != TT_UNKNOWN)
+ /* if we saw a month name, this can't be. */
+ break;
+
+ s = rest;
+
+ n1 = (*s++ - '0'); /* first 1 or 2 digits */
+ if (*s >= '0' && *s <= '9')
+ n1 = n1*10 + (*s++ - '0');
+
+ if (*s != '/' && *s != '-') /* slash */
+ break;
+ s++;
+
+ if (*s < '0' || *s > '9') /* second 1 or 2 digits */
+ break;
+ n2 = (*s++ - '0');
+ if (*s >= '0' && *s <= '9')
+ n2 = n2*10 + (*s++ - '0');
+
+ if (*s != '/' && *s != '-') /* slash */
+ break;
+ s++;
+
+ if (*s < '0' || *s > '9') /* third 1, 2, or 4 digits */
+ break;
+ n3 = (*s++ - '0');
+ if (*s >= '0' && *s <= '9')
+ n3 = n3*10 + (*s++ - '0');
+
+ if (*s >= '0' && *s <= '9') /* optional digits 3 and 4 */
+ {
+ n3 = n3*10 + (*s++ - '0');
+ if (*s < '0' || *s > '9')
+ break;
+ n3 = n3*10 + (*s++ - '0');
+ }
+
+ if ((*s >= '0' && *s <= '9') || /* followed by non-alphanum */
+ (*s >= 'A' && *s <= 'Z') ||
+ (*s >= 'a' && *s <= 'z'))
+ break;
+
+ /* Ok, we parsed three 1-2 digit numbers, with / or -
+ between them. Now decide what the hell they are
+ (DD/MM/YY or MM/DD/YY or YY/MM/DD.)
+ */
+
+ if (n1 > 31 || n1 == 0) /* must be YY/MM/DD */
+ {
+ if (n2 > 12) break;
+ if (n3 > 31) break;
+ year = n1;
+ if (year < 70)
+ year += 2000;
+ else if (year < 100)
+ year += 1900;
+ month = (TIME_TOKEN)(n2 + ((int)TT_JAN) - 1);
+ date = n3;
+ rest = s;
+ break;
+ }
+
+ if (n1 > 12 && n2 > 12) /* illegal */
+ {
+ rest = s;
+ break;
+ }
+
+ if (n3 < 70)
+ n3 += 2000;
+ else if (n3 < 100)
+ n3 += 1900;
+
+ if (n1 > 12) /* must be DD/MM/YY */
+ {
+ date = n1;
+ month = (TIME_TOKEN)(n2 + ((int)TT_JAN) - 1);
+ year = n3;
+ }
+ else /* assume MM/DD/YY */
+ {
+ /* #### In the ambiguous case, should we consult the
+ locale to find out the local default? */
+ month = (TIME_TOKEN)(n1 + ((int)TT_JAN) - 1);
+ date = n2;
+ year = n3;
+ }
+ rest = s;
+ }
+ else if ((*end >= 'A' && *end <= 'Z') ||
+ (*end >= 'a' && *end <= 'z'))
+ /* Digits followed by non-punctuation - what's that? */
+ ;
+ else if ((end - rest) == 4) /* four digits is a year */
+ year = (year < 0
+ ? ((rest[0]-'0')*1000L +
+ (rest[1]-'0')*100L +
+ (rest[2]-'0')*10L +
+ (rest[3]-'0'))
+ : year);
+ else if ((end - rest) == 2) /* two digits - date or year */
+ {
+ int n = ((rest[0]-'0')*10 +
+ (rest[1]-'0'));
+ /* If we don't have a date (day of the month) and we see a number
+ less than 32, then assume that is the date.
+
+ Otherwise, if we have a date and not a year, assume this is the
+ year. If it is less than 70, then assume it refers to the 21st
+ century. If it is two digits (>= 70), assume it refers to this
+ century. Otherwise, assume it refers to an unambiguous year.
+
+ The world will surely end soon.
+ */
+ if (date < 0 && n < 32)
+ date = n;
+ else if (year < 0)
+ {
+ if (n < 70)
+ year = 2000 + n;
+ else if (n < 100)
+ year = 1900 + n;
+ else
+ year = n;
+ }
+ /* else what the hell is this. */
+ }
+ else if ((end - rest) == 1) /* one digit - date */
+ date = (date < 0 ? (rest[0]-'0') : date);
+ /* else, three or more than four digits - what's that? */
+
+ break;
+ }
+ }
+
+ /* Skip to the end of this token, whether we parsed it or not.
+ Tokens are delimited by whitespace, or ,;-/
+ But explicitly not :+-.
+ */
+ while (*rest &&
+ *rest != ' ' && *rest != '\t' &&
+ *rest != ',' && *rest != ';' &&
+ *rest != '-' && *rest != '+' &&
+ *rest != '/' &&
+ *rest != '(' && *rest != ')' && *rest != '[' && *rest != ']')
+ rest++;
+ /* skip over uninteresting chars. */
+ SKIP_MORE:
+ while (*rest &&
+ (*rest == ' ' || *rest == '\t' ||
+ *rest == ',' || *rest == ';' || *rest == '/' ||
+ *rest == '(' || *rest == ')' || *rest == '[' || *rest == ']'))
+ rest++;
+
+ /* "-" is ignored at the beginning of a token if we have not yet
+ parsed a year (e.g., the second "-" in "30-AUG-1966"), or if
+ the character after the dash is not a digit. */
+ if (*rest == '-' && ((rest > string && isalpha(rest[-1]) && year < 0)
+ || rest[1] < '0' || rest[1] > '9'))
+ {
+ rest++;
+ goto SKIP_MORE;
+ }
+
+ }
+
+ if (zone != TT_UNKNOWN && zone_offset == -1)
+ {
+ switch (zone)
+ {
+ case TT_PST: zone_offset = -8 * 60; break;
+ case TT_PDT: zone_offset = -7 * 60; break;
+ case TT_MST: zone_offset = -7 * 60; break;
+ case TT_MDT: zone_offset = -6 * 60; break;
+ case TT_CST: zone_offset = -6 * 60; break;
+ case TT_CDT: zone_offset = -5 * 60; break;
+ case TT_EST: zone_offset = -5 * 60; break;
+ case TT_EDT: zone_offset = -4 * 60; break;
+ case TT_AST: zone_offset = -4 * 60; break;
+ case TT_NST: zone_offset = -3 * 60 - 30; break;
+ case TT_GMT: zone_offset = 0 * 60; break;
+ case TT_BST: zone_offset = 1 * 60; break;
+ case TT_MET: zone_offset = 1 * 60; break;
+ case TT_EET: zone_offset = 2 * 60; break;
+ case TT_JST: zone_offset = 9 * 60; break;
+ default:
+ PR_ASSERT (0);
+ break;
+ }
+ }
+
+ /* If we didn't find a year, month, or day-of-the-month, we can't
+ possibly parse this, and in fact, mktime() will do something random
+ (I'm seeing it return "Tue Feb 5 06:28:16 2036", which is no doubt
+ a numerologically significant date... */
+ if (month == TT_UNKNOWN || date == -1 || year == -1)
+ return PR_FAILURE;
+
+ memset(&tm, 0, sizeof(tm));
+ if (sec != -1)
+ tm.tm_sec = sec;
+ if (min != -1)
+ tm.tm_min = min;
+ if (hour != -1)
+ tm.tm_hour = hour;
+ if (date != -1)
+ tm.tm_mday = date;
+ if (month != TT_UNKNOWN)
+ tm.tm_month = (((int)month) - ((int)TT_JAN));
+ if (year != -1)
+ tm.tm_year = year;
+ if (dotw != TT_UNKNOWN)
+ tm.tm_wday = (((int)dotw) - ((int)TT_SUN));
+
+ if (zone == TT_UNKNOWN && default_to_gmt)
+ {
+ /* No zone was specified, so pretend the zone was GMT. */
+ zone = TT_GMT;
+ zone_offset = 0;
+ }
+
+ if (zone_offset == -1)
+ {
+ /* no zone was specified, and we're to assume that everything
+ is local. */
+ struct tm localTime;
+ time_t secs;
+
+ PR_ASSERT(tm.tm_month > -1
+ && tm.tm_mday > 0
+ && tm.tm_hour > -1
+ && tm.tm_min > -1
+ && tm.tm_sec > -1);
+
+ /*
+ * To obtain time_t from a tm structure representing the local
+ * time, we call mktime(). However, we need to see if we are
+ * on 1-Jan-1970 or before. If we are, we can't call mktime()
+ * because mktime() will crash on win16. In that case, we
+ * calculate zone_offset based on the zone offset at
+ * 00:00:00, 2 Jan 1970 GMT, and subtract zone_offset from the
+ * date we are parsing to transform the date to GMT. We also
+ * do so if mktime() returns (time_t) -1 (time out of range).
+ */
+
+ /* month, day, hours, mins and secs are always non-negative
+ so we dont need to worry about them. */
+ if(tm.tm_year >= 1970)
+ {
+ PRInt64 usec_per_sec;
+
+ localTime.tm_sec = tm.tm_sec;
+ localTime.tm_min = tm.tm_min;
+ localTime.tm_hour = tm.tm_hour;
+ localTime.tm_mday = tm.tm_mday;
+ localTime.tm_mon = tm.tm_month;
+ localTime.tm_year = tm.tm_year - 1900;
+ /* Set this to -1 to tell mktime "I don't care". If you set
+ it to 0 or 1, you are making assertions about whether the
+ date you are handing it is in daylight savings mode or not;
+ and if you're wrong, it will "fix" it for you. */
+ localTime.tm_isdst = -1;
+ secs = mktime(&localTime);
+ if (secs != (time_t) -1)
+ {
+#if defined(XP_MAC) && (__MSL__ < 0x6000)
+ /*
+ * The mktime() routine in MetroWerks MSL C
+ * Runtime library returns seconds since midnight,
+ * 1 Jan. 1900, not 1970 - in versions of MSL (Metrowerks Standard
+ * Library) prior to version 6. Only for older versions of
+ * MSL do we adjust the value of secs to the NSPR epoch
+ */
+ secs -= ((365 * 70UL) + 17) * 24 * 60 * 60;
+#endif
+ LL_I2L(*result, secs);
+ LL_I2L(usec_per_sec, PR_USEC_PER_SEC);
+ LL_MUL(*result, *result, usec_per_sec);
+ return PR_SUCCESS;
+ }
+ }
+
+ /* So mktime() can't handle this case. We assume the
+ zone_offset for the date we are parsing is the same as
+ the zone offset on 00:00:00 2 Jan 1970 GMT. */
+ secs = 86400;
+ (void) localtime_s(&localTime, &secs);
+ zone_offset = localTime.tm_min
+ + 60 * localTime.tm_hour
+ + 1440 * (localTime.tm_mday - 2);
+ }
+
+ tm.tm_params.tp_gmt_offset = zone_offset * 60;
+
+ *result = PR_ImplodeTime(&tm);
+
+ return PR_SUCCESS;
+} \ No newline at end of file
generated by cgit v1.1 at 2024-09-13 05:28:31 +0000