dcdatetimeparseunits.f90 File Reference

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Functions/Subroutines
integer function	dcdatetimeparseunits (str)
	Parse strings that mean units.

Function/Subroutine Documentation

dcdatetimeparseunits()

integer function dcdatetimeparseunits

(

character(*), intent(in)

str

)

Parse strings that mean units.

Author

Yasuhiro MORIKAWA

Copyright

Copyright (C) GFD Dennou Club, 2000-2026. All rights reserved.
License is BSD-2-Clause. see COPYRIGHT in detail

This file contains the implementation procedure for parsing date/time unit strings.

Parse a unit string and return the corresponding symbol

Parse the string given in str and return a symbol representing the date/time unit. The following strings are interpreted as date/time units. Case is not distinguished.

Unit	String constant
Year	dc_date_types#UNIT_YEAR
Month	dc_date_types#UNIT_MONTH
Day	dc_date_types#UNIT_DAY
Hour	dc_date_types#UNIT_HOUR
Minute	dc_date_types#UNIT_MIN
Second	dc_date_types#UNIT_SEC
Non-dimensional time	dc_date_types#UNIT_NONDIM

The returned symbols (integer type) are as follows.

Unit	Symbol constant
Year	dc_date_types#UNIT_SYMBOL_YEAR
Month	dc_date_types#UNIT_SYMBOL_MONTH
Day	dc_date_types#UNIT_SYMBOL_DAY
Hour	dc_date_types#UNIT_SYMBOL_HOUR
Minute	dc_date_types#UNIT_SYMBOL_MIN
Second	dc_date_types#UNIT_SYMBOL_SEC
Non-dimensional time	dc_date_types#UNIT_SYMBOL_NONDIM

If a string not matching these is given to str, dc_date_types#UNIT_SYMBOL_ERR is returned.

Parameters

[in]

str

String to parse

Returns

Symbol representing the date/time unit

Definition at line 94 of file dcdatetimeparseunits.f90.

 
  use dc_types, only: token
  use dc_date_types, only: unit_year, unit_month, unit_day, &
    & unit_hour, unit_min, unit_sec, unit_nondim, &
    & unit_symbol_year, unit_symbol_month, unit_symbol_day, &
    & unit_symbol_hour, unit_symbol_min, unit_symbol_sec, &
    & unit_symbol_nondim, unit_symbol_err
  use dc_string, only: strieq
  implicit none
  character(*), intent(in):: str
  integer:: symbol
  integer:: unit_str_size, i
  character(TOKEN):: unit
continue
  unit = adjustl(str)
  unit_str_size = size(unit_nondim)
  do i = 1, unit_str_size
    if (strieq(trim(unit), trim(unit_nondim(i)))) then
      symbol = unit_symbol_nondim
      return
    end if
  end do
 
  unit_str_size = size(unit_sec)
  do i = 1, unit_str_size
    if (strieq(trim(unit), trim(unit_sec(i)))) then
      symbol = unit_symbol_sec
      return
    end if
  end do
 
  unit_str_size = size(unit_min)
  do i = 1, unit_str_size
    if (strieq(trim(unit), trim(unit_min(i)))) then
      symbol = unit_symbol_min
      return
    end if
  end do
 
  unit_str_size = size(unit_hour)
  do i = 1, unit_str_size
    if (strieq(trim(unit), trim(unit_hour(i)))) then
      symbol = unit_symbol_hour
      return
    end if
  end do
 
  unit_str_size = size(unit_day)
  do i = 1, unit_str_size
    if (strieq(trim(unit), trim(unit_day(i)))) then
      symbol = unit_symbol_day
      return
    end if
  end do
 
  unit_str_size = size(unit_month)
  do i = 1, unit_str_size
    if (strieq(trim(unit), trim(unit_month(i)))) then
      symbol = unit_symbol_month
      return
    end if
  end do
 
  unit_str_size = size(unit_year)
  do i = 1, unit_str_size
    if (strieq(trim(unit), trim(unit_year(i)))) then
      symbol = unit_symbol_year
      return
    end if
  end do
 
  symbol = unit_symbol_err
 

References dc_types::token, dc_date_types::unit_day, dc_date_types::unit_hour, dc_date_types::unit_min, dc_date_types::unit_month, dc_date_types::unit_nondim, dc_date_types::unit_sec, dc_date_types::unit_symbol_day, dc_date_types::unit_symbol_err, dc_date_types::unit_symbol_hour, dc_date_types::unit_symbol_min, dc_date_types::unit_symbol_month, dc_date_types::unit_symbol_nondim, dc_date_types::unit_symbol_sec, dc_date_types::unit_symbol_year, and dc_date_types::unit_year.