pm_sysPath::getDirSep Interface Reference

Generate and return the directory separator symbol based on the runtime system shell.
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Detailed Description

Generate and return the directory separator symbol based on the runtime system shell.

The directory separator returned by this procedure can be used in constructing paths that can be passed to system function for example via isFailedExec or the Fortran intrinsic execute_command_line().

1. The directory separator for Windows-based terminals such as CMD and PowerShell is the backslash character \.
   
2. The directory separator for POSIX-compliant terminals such as sh, bash, csh, zsh, ... is the forward slash /.
   

Parameters

[in]	mold	: The input scalar character of kind any supported by the processor (e.g., SK, SKA, SKD , or SKU) of length 1. The value of mold s ignored. However, its kind type parameter is used to to set the kind type parameter of the output dirsep. (optional, default = SK_" " where SK refers to the default character kind SK.) if and only if an error occurs while inferring the system shell directory separator. (optional. If missing and a runtime error occurs, the program will halt by calling error stop.)
[out]	failed	: The output scalar logical of default kind LK that is .true. if and only if an error occurs while inferring the system shell directory separator. (optional. If missing and a runtime error occurs, the program will halt by calling error stop.)
[in,out]	errmsg	: The input/output scalar character of default kind SK of arbitrary length type parameter. If an error occurs, errmsg will be set to a descriptive message about the nature of the runtime error. A length of LEN_IOMSG characters is likely sufficient to capture most error messages in full. (optional. If missing, no error message will be output. Its presence is relevant only if failed is also present.)

Returns

dirsep : The output scalar character of the same kind as the input mold, of length type parameter 1, representing the directory separator symbol based on the runtime system shell (\ or /).
If the procedure fails and the output argument failed is present, it is set to .true..
Also, dirsep is set to the default value of the dirsep component of shell_type.

Possible calling interfaces ⛓

use pm_kind, only: LK
use pm_sysPath, only: getDirSep
character(1, SK) :: dirsep
 
dirsep = getDirSep(failed = failed, errmsg = errmsg)
dirsep = getDirSep(mold, failed = failed, errmsg = errmsg)

Remarks

The procedures under discussion are impure.

See also

isDir
isFile
getDirSep
getDirSeps
getPathSep
getPathNew
getPathPosix
setPathPosix
getPathWindows
setPathWindows
getPathHostNameIndex
shellis_type
shell_type

Example usage ⛓

program example
 
    use pm_kind, only: LK
    use pm_kind, only: SK ! all processor types and kinds are supported.
    use pm_io, only: display_type
    use pm_sysPath, only: getDirSep
 
    implicit none
 
    character(255, SK)  :: errmsg = SK_""
    logical(LK)         :: failed
 
    type(display_type)  :: disp
    disp = display_type(file = "main.out.F90")
 
    call disp%skip()
    call disp%show("getDirSep()")
    call disp%show( getDirSep() , deliml = """" )
    call disp%skip()
 
    call disp%skip()
    call disp%show("getDirSep(mold = SK_'a')")
    call disp%show( getDirSep(mold = SK_'a') , deliml = """" )
    call disp%skip()
 
    call disp%skip()
    call disp%show("getDirSep(failed)")
    call disp%show( getDirSep(failed) , deliml = """" )
    call disp%show("failed")
    call disp%show( failed )
    call disp%skip()
 
    call disp%skip()
    call disp%show("getDirSep(failed, errmsg)")
    call disp%show( getDirSep(failed, errmsg) , deliml = """" )
    call disp%show("failed")
    call disp%show( failed )
    call disp%show("trim(errmsg)")
    call disp%show( trim(errmsg) , deliml = SK_"""" )
    call disp%skip()
 
end program example

Example Unix compile command via Intel ifort compiler ⛓

#!/usr/bin/env sh
rm main.exe
ifort -fpp -standard-semantics -O3 -Wl,-rpath,../../../lib -I../../../inc main.F90 ../../../lib/libparamonte* -o main.exe
./main.exe

Example Windows Batch compile command via Intel ifort compiler ⛓

del main.exe
set PATH=..\..\..\lib;%PATH%
ifort /fpp /standard-semantics /O3 /I:..\..\..\include main.F90 ..\..\..\lib\libparamonte*.lib /exe:main.exe
main.exe

Example Unix / MinGW compile command via GNU gfortran compiler ⛓

#!/usr/bin/env sh
rm main.exe
gfortran -cpp -ffree-line-length-none -O3 -Wl,-rpath,../../../lib -I../../../inc main.F90 ../../../lib/libparamonte* -o main.exe
./main.exe

Example output ⛓

 
getDirSep()
"/"
 
 
getDirSep(mold = SK_'a')
"/"
 
 
getDirSep(failed)
"/"
failed
F
 
 
getDirSep(failed, errmsg)
"/"
failed
F
trim(errmsg)
""
 
 

Test:

test_pm_sysPath

Todo:

High Priority: The current Fortran standard 202x does not allow passing characters of non-default kind to the intrinsic Fortran statements and procedures.
As such, the implementation of this procedure for non-default character kinds leads to compile-time kind mismatch errors.
This procedure should be converted back to a generic interface in the future when non-default character kinds are also fully supported by the intrinsic functions.

Final Remarks ⛓

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For details on the naming abbreviations, see this page.
For details on the naming conventions, see this page.
This software is distributed under the MIT license with additional terms outlined below.

1. If you use any parts or concepts from this library to any extent, please acknowledge the usage by citing the relevant publications of the ParaMonte library.
   
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Help us justify its continued development and maintenance by acknowledging its benefit to society, distributing it, and contributing to it.

Copyright

Computational Data Science Lab

Author:

Amir Shahmoradi, Tuesday March 7, 2017, 3:09 AM, Institute for Computational Engineering and Sciences (ICES), The University of Texas Austin

Definition at line 3843 of file pm_sysPath.F90.

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The documentation for this interface was generated from the following file:

• src/fortran/main/pm_sysPath.F90