src/gromacs/commandline/filenm.h

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  38 /*! \file
  39  * \brief
  40  * Declares t_filenm for old-style command-line parsing of file name options.
  41  *
  42  * \inpublicapi
  43  * \ingroup module_commandline
  44  */
  45 #ifndef GMX_COMMANDLINE_FILENM_H
  46 #define GMX_COMMANDLINE_FILENM_H
  47
  48 #include <string>
  49 #include <string_view>
  50 #include <vector>
  51
  52 #include "gromacs/fileio/filetypes.h"
  53 #include "gromacs/utility/basedefinitions.h"
  54
  55
  56 //! \addtogroup module_commandline
  57 //! \{
  58
  59 namespace gmx
  60 {
  61 template<typename>
  62 class ArrayRef;
  63 } // namespace gmx
  64
  65 /*! \brief
  66  * File name option definition for C code.
  67  *
  68  * \inpublicapi
  69  */
  70 struct t_filenm
  71 {
  72     int                      ftp; //!< File type, see enum in filetypes.h
  73     const char*              opt; //!< Command line option, can be nullptr in which case the commandline module, including all opt2??? functions below, will use the default option for the file type
  74     const char*              fn; //!< File name (as set in source code), can be nullptr in which case the commandline module will use the default file name for the file type
  75     unsigned long            flag;      //!< Flag for all kinds of info (see defs)
  76     std::vector<std::string> filenames; //!< File names
  77 };
  78
  79 //! Whether a file name option is set.
  80 #define ffSET 1 << 0
  81 //! Whether a file name option specifies an input file.
  82 #define ffREAD 1 << 1
  83 //! Whether a file name option specifies an output file.
  84 #define ffWRITE 1 << 2
  85 //! Whether a file name option specifies an optional file.
  86 #define ffOPT 1 << 3
  87 //! Whether a file name option specifies a library file.
  88 #define ffLIB 1 << 4
  89 //! Whether a file name option accepts multiple file names.
  90 #define ffMULT 1 << 5
  91 //! Whether an input file name option accepts non-existent files.
  92 #define ffALLOW_MISSING 1 << 6
  93 //! Convenience flag for an input/output file.
  94 #define ffRW (ffREAD | ffWRITE)
  95 //! Convenience flag for an optional input file.
  96 #define ffOPTRD (ffREAD | ffOPT)
  97 //! Convenience flag for an optional output file.
  98 #define ffOPTWR (ffWRITE | ffOPT)
  99 //! Convenience flag for an optional input/output file.
 100 #define ffOPTRW (ffRW | ffOPT)
 101 //! Convenience flag for a library input file.
 102 #define ffLIBRD (ffREAD | ffLIB)
 103 //! Convenience flag for an optional library input file.
 104 #define ffLIBOPTRD (ffOPTRD | ffLIB)
 105 //! Convenience flag for an input file that accepts multiple files.
 106 #define ffRDMULT (ffREAD | ffMULT)
 107 //! Convenience flag for an optional input file that accepts multiple files.
 108 #define ffOPTRDMULT (ffRDMULT | ffOPT)
 109 //! Convenience flag for an output file that accepts multiple files.
 110 #define ffWRMULT (ffWRITE | ffMULT)
 111 //! Convenience flag for an optional output file that accepts multiple files.
 112 #define ffOPTWRMULT (ffWRMULT | ffOPT)
 113
 114 /*! \brief
 115  * Returns the filename belonging to cmd-line option opt, or NULL when
 116  * no such option.
 117  */
 118 const char* opt2fn(const char* opt, int nfile, const t_filenm fnm[]);
 119
 120 /*! \brief
 121  * Returns the filenames belonging to cmd-line option opt.
 122  *
 123  * An assertion will fail when the option does not exist.
 124  */
 125 gmx::ArrayRef<const std::string> opt2fns(const char* opt, int nfile, const t_filenm fnm[]);
 126
 127 /*! \brief
 128  * Returns the filenames belonging to cmd-line option opt when set,
 129  * returns an empty vector when the option is not set.
 130  *
 131  * An assertion will fail when the option does not exist.
 132  */
 133 gmx::ArrayRef<const std::string> opt2fnsIfOptionSet(const char* opt, int nfile, const t_filenm fnm[]);
 134
 135 //! Returns a file pointer from the filename.
 136 #define opt2FILE(opt, nfile, fnm, mode) gmx_ffopen(opt2fn(opt, nfile, fnm), mode)
 137
 138 //! Returns the first file name with type ftp, or NULL when none found.
 139 const char* ftp2fn(int ftp, int nfile, const t_filenm fnm[]);
 140
 141 /*! \brief
 142  * Returns the filenames for the first option with type ftp.
 143  *
 144  * An assertion will fail when when none found.
 145  */
 146 gmx::ArrayRef<const std::string> ftp2fns(int ftp, int nfile, const t_filenm fnm[]);
 147
 148 //! Returns a file pointer from the file type.
 149 #define ftp2FILE(ftp, nfile, fnm, mode) gmx_ffopen(ftp2fn(ftp, nfile, fnm), mode)
 150
 151 //! Returns TRUE when this file type has been found on the cmd-line.
 152 gmx_bool ftp2bSet(int ftp, int nfile, const t_filenm fnm[]);
 153
 154 //! Returns TRUE when this option has been found on the cmd-line.
 155 gmx_bool opt2bSet(const char* opt, int nfile, const t_filenm fnm[]);
 156
 157 /*! \brief
 158  * Returns the file name belonging top cmd-line option opt, or NULL when
 159  * no such option.
 160  *
 161  * Also return NULL when opt is optional and option is not set.
 162  */
 163 const char* opt2fn_null(const char* opt, int nfile, const t_filenm fnm[]);
 164
 165 /*! \brief
 166  * Returns the first file name with type ftp, or NULL when none found.
 167  *
 168  * Also return NULL when ftp is optional and option is not set.
 169  */
 170 const char* ftp2fn_null(int ftp, int nfile, const t_filenm fnm[]);
 171
 172 //! Returns whether or not this filenm is optional.
 173 gmx_bool is_optional(const t_filenm* fnm);
 174
 175 //! Returns whether or not this filenm is output.
 176 gmx_bool is_output(const t_filenm* fnm);
 177
 178 //! Returns whether or not this filenm is set.
 179 gmx_bool is_set(const t_filenm* fnm);
 180
 181 /*! \brief Return whether \c filename might have been produced by mdrun -noappend.
 182  *
 183  * If so, it must match "prefix.partNNNN.extension", for four decimal
 184  * digits N and non-empty prefix and extension. */
 185 bool hasSuffixFromNoAppend(std::string_view filename);
 186
 187 /*! \brief
 188  * When we do checkpointing, this routine is called to check for previous
 189  * output files and append a '.partNNNN' suffix before the (output) file extensions.
 190  * If there was already a '.partNNNN' suffix before the file extension, that
 191  * is removed before the new suffix is added.
 192  */
 193 int add_suffix_to_output_names(t_filenm* fnm, int nfile, const char* suffix);
 194
 195 //! \}
 196
 197 #endif