Idem. recollindex builds, forgotten bits
--HG-- branch : WINDOWSPORT
This commit is contained in:
Jean-Francois Dockes
parent
75517f7497
commit
8c4f4315fe
255
src/windows/strptime.cpp
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255
src/windows/strptime.cpp
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <time.h>
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#include <ctype.h>
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#ifdef _MSC_VER
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const char * strp_weekdays[] =
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{ "sunday", "monday", "tuesday", "wednesday", "thursday", "friday", "saturday" };
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const char * strp_monthnames[] =
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{ "january", "february", "march", "april", "may", "june", "july", "august", "september", "october", "november", "december" };
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bool strp_atoi(const char * & s, int & result, int low, int high, int offset)
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{
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bool worked = false;
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char * end;
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unsigned long num = strtoul(s, &end, 10);
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if (num >= (unsigned long)low && num <= (unsigned long)high)
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{
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result = (int)(num + offset);
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s = end;
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worked = true;
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}
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return worked;
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}
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char * strptime(const char *s, const char *format, struct tm *tm)
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{
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bool working = true;
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while (working && *format && *s)
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{
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switch (*format)
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{
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case '%':
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{
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++format;
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switch (*format)
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{
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case 'a':
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case 'A': // weekday name
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tm->tm_wday = -1;
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working = false;
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for (size_t i = 0; i < 7; ++i)
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{
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size_t len = strlen(strp_weekdays[i]);
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if (!strnicmp(strp_weekdays[i], s, len))
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{
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tm->tm_wday = i;
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s += len;
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working = true;
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break;
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}
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else if (!strnicmp(strp_weekdays[i], s, 3))
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{
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tm->tm_wday = i;
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s += 3;
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working = true;
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break;
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}
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}
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break;
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case 'b':
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case 'B':
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case 'h': // month name
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tm->tm_mon = -1;
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working = false;
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for (size_t i = 0; i < 12; ++i)
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{
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size_t len = strlen(strp_monthnames[i]);
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if (!strnicmp(strp_monthnames[i], s, len))
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{
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tm->tm_mon = i;
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s += len;
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working = true;
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break;
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}
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else if (!strnicmp(strp_monthnames[i], s, 3))
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{
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tm->tm_mon = i;
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s += 3;
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working = true;
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break;
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}
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}
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break;
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case 'd':
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case 'e': // day of month number
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working = strp_atoi(s, tm->tm_mday, 1, 31, 0);
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break;
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case 'D': // %m/%d/%y
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{
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const char * s_save = s;
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working = strp_atoi(s, tm->tm_mon, 1, 12, -1);
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if (working && *s == '/')
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{
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++s;
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working = strp_atoi(s, tm->tm_mday, 1, 31, 0);
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if (working && *s == '/')
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{
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++s;
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working = strp_atoi(s, tm->tm_year, 0, 99, 0);
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if (working && tm->tm_year < 69)
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tm->tm_year += 100;
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}
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}
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if (!working)
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s = s_save;
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}
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break;
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case 'H': // hour
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working = strp_atoi(s, tm->tm_hour, 0, 23, 0);
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break;
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case 'I': // hour 12-hour clock
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working = strp_atoi(s, tm->tm_hour, 1, 12, 0);
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break;
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case 'j': // day number of year
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working = strp_atoi(s, tm->tm_yday, 1, 366, -1);
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break;
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case 'm': // month number
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working = strp_atoi(s, tm->tm_mon, 1, 12, -1);
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break;
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case 'M': // minute
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working = strp_atoi(s, tm->tm_min, 0, 59, 0);
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break;
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case 'n': // arbitrary whitespace
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case 't':
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while (isspace((int)*s))
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++s;
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break;
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case 'p': // am / pm
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if (!strnicmp(s, "am", 2))
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{ // the hour will be 1 -> 12 maps to 12 am, 1 am .. 11 am, 12 noon 12 pm .. 11 pm
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if (tm->tm_hour == 12) // 12 am == 00 hours
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tm->tm_hour = 0;
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}
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else if (!strnicmp(s, "pm", 2))
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{
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if (tm->tm_hour < 12) // 12 pm == 12 hours
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tm->tm_hour += 12; // 1 pm -> 13 hours, 11 pm -> 23 hours
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}
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else
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working = false;
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break;
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case 'r': // 12 hour clock %I:%M:%S %p
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{
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const char * s_save = s;
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working = strp_atoi(s, tm->tm_hour, 1, 12, 0);
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if (working && *s == ':')
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{
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++s;
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working = strp_atoi(s, tm->tm_min, 0, 59, 0);
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if (working && *s == ':')
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{
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++s;
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working = strp_atoi(s, tm->tm_sec, 0, 60, 0);
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if (working && isspace((int)*s))
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{
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++s;
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while (isspace((int)*s))
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++s;
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if (!strnicmp(s, "am", 2))
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{ // the hour will be 1 -> 12 maps to 12 am, 1 am .. 11 am, 12 noon 12 pm .. 11 pm
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if (tm->tm_hour == 12) // 12 am == 00 hours
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tm->tm_hour = 0;
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}
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else if (!strnicmp(s, "pm", 2))
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{
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if (tm->tm_hour < 12) // 12 pm == 12 hours
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tm->tm_hour += 12; // 1 pm -> 13 hours, 11 pm -> 23 hours
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}
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else
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working = false;
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}
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}
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}
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if (!working)
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s = s_save;
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}
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break;
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case 'R': // %H:%M
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{
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const char * s_save = s;
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working = strp_atoi(s, tm->tm_hour, 0, 23, 0);
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if (working && *s == ':')
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{
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++s;
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working = strp_atoi(s, tm->tm_min, 0, 59, 0);
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}
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if (!working)
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s = s_save;
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}
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break;
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case 'S': // seconds
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working = strp_atoi(s, tm->tm_sec, 0, 60, 0);
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break;
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case 'T': // %H:%M:%S
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{
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const char * s_save = s;
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working = strp_atoi(s, tm->tm_hour, 0, 23, 0);
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if (working && *s == ':')
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{
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++s;
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working = strp_atoi(s, tm->tm_min, 0, 59, 0);
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if (working && *s == ':')
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{
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++s;
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working = strp_atoi(s, tm->tm_sec, 0, 60, 0);
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}
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}
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if (!working)
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s = s_save;
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}
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break;
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case 'w': // weekday number 0->6 sunday->saturday
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working = strp_atoi(s, tm->tm_wday, 0, 6, 0);
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break;
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case 'Y': // year
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working = strp_atoi(s, tm->tm_year, 1900, 65535, -1900);
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break;
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case 'y': // 2-digit year
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working = strp_atoi(s, tm->tm_year, 0, 99, 0);
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if (working && tm->tm_year < 69)
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tm->tm_year += 100;
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break;
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case '%': // escaped
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if (*s != '%')
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working = false;
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++s;
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break;
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default:
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working = false;
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}
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}
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break;
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case ' ':
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case '\t':
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case '\r':
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case '\n':
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case '\f':
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case '\v':
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// zero or more whitespaces:
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while (isspace((int)*s))
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++s;
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break;
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default:
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// match character
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if (*s != *format)
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working = false;
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else
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++s;
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break;
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}
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++format;
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}
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return (working ? (char *)s : 0);
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}
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#endif // _MSC_VER
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3
src/windows/strptime.h
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3
src/windows/strptime.h
Normal file
@ -0,0 +1,3 @@
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extern char * strptime(const char *s, const char *format, struct tm *tm);
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