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1 ------------------------------------------------------------------------------
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2 -- --
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3 -- GNAT RUN-TIME COMPONENTS --
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4 -- --
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5 -- A D A . D I R E C T O R I E S . V A L I D I T Y --
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6 -- --
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7 -- B o d y --
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8 -- (POSIX Version) --
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9 -- --
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10 -- Copyright (C) 2004-2017, Free Software Foundation, Inc. --
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11 -- --
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12 -- GNAT is free software; you can redistribute it and/or modify it under --
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13 -- terms of the GNU General Public License as published by the Free Soft- --
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14 -- ware Foundation; either version 3, or (at your option) any later ver- --
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15 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
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16 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
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17 -- or FITNESS FOR A PARTICULAR PURPOSE. --
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18 -- --
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19 -- As a special exception under Section 7 of GPL version 3, you are granted --
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20 -- additional permissions described in the GCC Runtime Library Exception, --
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21 -- version 3.1, as published by the Free Software Foundation. --
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22 -- --
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23 -- You should have received a copy of the GNU General Public License and --
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24 -- a copy of the GCC Runtime Library Exception along with this program; --
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25 -- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
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26 -- <http://www.gnu.org/licenses/>. --
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27 -- --
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28 -- GNAT was originally developed by the GNAT team at New York University. --
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29 -- Extensive contributions were provided by Ada Core Technologies Inc. --
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30 -- --
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31 ------------------------------------------------------------------------------
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32
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33 -- This is the POSIX version of this package
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34
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35 package body Ada.Directories.Validity is
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36
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37 ---------------------------------
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38 -- Is_Path_Name_Case_Sensitive --
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39 ---------------------------------
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40
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41 function Is_Path_Name_Case_Sensitive return Boolean is
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42 begin
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43 return True;
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44 end Is_Path_Name_Case_Sensitive;
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45
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46 ------------------------
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47 -- Is_Valid_Path_Name --
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48 ------------------------
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49
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50 function Is_Valid_Path_Name (Name : String) return Boolean is
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51 begin
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52 -- A path name cannot be empty and cannot contain any NUL character
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53
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54 if Name'Length = 0 then
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55 return False;
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56
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57 else
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58 for J in Name'Range loop
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59 if Name (J) = ASCII.NUL then
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60 return False;
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61 end if;
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62 end loop;
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63 end if;
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64
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65 -- If Name does not contain any NUL character, it is valid
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66
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67 return True;
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68 end Is_Valid_Path_Name;
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69
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70 --------------------------
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71 -- Is_Valid_Simple_Name --
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72 --------------------------
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73
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74 function Is_Valid_Simple_Name (Name : String) return Boolean is
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75 begin
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76 -- A file name cannot be empty and cannot contain a slash ('/') or
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77 -- the NUL character.
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78
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79 if Name'Length = 0 then
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80 return False;
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81
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82 else
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83 for J in Name'Range loop
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84 if Name (J) = '/' or else Name (J) = ASCII.NUL then
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85 return False;
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86 end if;
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87 end loop;
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88 end if;
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89
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90 -- If Name does not contain any slash or NUL, it is valid
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91
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92 return True;
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93 end Is_Valid_Simple_Name;
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94
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95 -------------
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96 -- Windows --
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97 -------------
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98
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99 function Windows return Boolean is
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100 begin
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101 return False;
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102 end Windows;
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103
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104 end Ada.Directories.Validity;
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