Mercurial > octave-nkf
annotate liboctave/pathsearch.cc @ 8008:4d13a7a2f6ab
dir_path: use singleton class for static data members
| author | John W. Eaton <jwe@octave.org> |
|---|---|
| date | Tue, 05 Aug 2008 12:04:10 -0400 |
| parents | a1dbe9d80eee |
| children | 0ef13e15319b |
| rev | line source |
|---|---|
| 1786 | 1 /* |
| 2 | |
| 7017 | 3 Copyright (C) 1996, 1997, 1998, 2000, 2001, 2002, 2003, 2005, 2006, |
| 4 2007 John W. Eaton | |
| 1786 | 5 |
| 6 This file is part of Octave. | |
| 7 | |
| 8 Octave is free software; you can redistribute it and/or modify it | |
| 9 under the terms of the GNU General Public License as published by the | |
| 7016 | 10 Free Software Foundation; either version 3 of the License, or (at your |
| 11 option) any later version. | |
| 1786 | 12 |
| 13 Octave is distributed in the hope that it will be useful, but WITHOUT | |
| 14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 16 for more details. | |
| 17 | |
| 18 You should have received a copy of the GNU General Public License | |
| 7016 | 19 along with Octave; see the file COPYING. If not, see |
| 20 <http://www.gnu.org/licenses/>. | |
| 1786 | 21 |
| 22 */ | |
| 23 | |
| 2021 | 24 #ifdef HAVE_CONFIG_H |
| 25 #include <config.h> | |
| 26 #endif | |
| 27 | |
| 1786 | 28 #include <cstdlib> |
| 29 | |
| 30 #include <string> | |
| 31 | |
| 3024 | 32 #include "lo-utils.h" |
| 3833 | 33 #include "oct-env.h" |
| 1786 | 34 #include "pathsearch.h" |
| 35 #include "str-vec.h" | |
| 3024 | 36 #include "str-vec.h" |
| 1786 | 37 |
| 4399 | 38 #include "kpse.cc" |
| 4378 | 39 |
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40 dir_path::static_members *dir_path::static_members::instance = 0; |
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41 |
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42 dir_path::static_members::static_members (void) |
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43 : xpath_sep_char (SEPCHAR), xpath_sep_str (SEPCHAR_STR) { } |
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44 |
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45 bool |
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46 dir_path::static_members::instance_ok (void) |
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47 { |
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48 bool retval = true; |
| 5777 | 49 |
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50 if (! instance) |
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51 instance = new static_members (); |
| 5777 | 52 |
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53 if (! instance) |
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54 { |
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55 (*current_liboctave_error_handler) |
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56 ("unable to create dir_path::static_members object!"); |
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57 |
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58 retval = false; |
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59 } |
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60 |
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61 return retval; |
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62 } |
| 1786 | 63 |
| 64 string_vector | |
| 65 dir_path::elements (void) | |
| 66 { | |
| 67 return initialized ? pv : string_vector (); | |
| 68 } | |
| 69 | |
| 70 string_vector | |
| 71 dir_path::all_directories (void) | |
| 72 { | |
| 73 int count = 0; | |
| 74 string_vector retval; | |
| 75 | |
| 76 if (initialized) | |
| 77 { | |
| 78 int len = pv.length (); | |
| 79 | |
| 80 int nmax = len > 32 ? len : 32; | |
| 81 | |
| 82 retval.resize (len); | |
| 83 | |
| 84 for (int i = 0; i < len; i++) | |
| 85 { | |
| 4394 | 86 str_llist_type *elt_dirs = kpse_element_dirs (pv[i]); |
| 1786 | 87 |
| 3415 | 88 if (elt_dirs) |
| 1786 | 89 { |
| 3415 | 90 str_llist_elt_type *dir; |
| 1786 | 91 |
| 3415 | 92 for (dir = *elt_dirs; dir; dir = STR_LLIST_NEXT (*dir)) |
| 1786 | 93 { |
| 4390 | 94 const std::string elt_dir = STR_LLIST (*dir); |
| 1786 | 95 |
| 4390 | 96 if (! elt_dir.empty ()) |
| 3415 | 97 { |
| 98 if (count == nmax) | |
| 99 nmax *= 2; | |
| 1786 | 100 |
| 3415 | 101 retval.resize (nmax); |
| 102 | |
| 103 retval[count++] = elt_dir; | |
| 104 } | |
| 1786 | 105 } |
| 106 } | |
| 107 } | |
| 108 | |
| 109 retval.resize (count); | |
| 110 } | |
| 111 | |
| 112 return retval; | |
| 113 } | |
| 114 | |
| 3504 | 115 std::string |
| 116 dir_path::find_first (const std::string& nm) | |
| 1786 | 117 { |
| 4390 | 118 return initialized ? kpse_path_search (p, nm, true) : std::string (); |
| 4242 | 119 } |
| 120 | |
| 121 string_vector | |
| 122 dir_path::find_all (const std::string& nm) | |
| 123 { | |
| 4390 | 124 return initialized ? kpse_all_path_search (p, nm) : string_vector (); |
| 4242 | 125 } |
| 126 | |
| 127 std::string | |
| 128 dir_path::find_first_of (const string_vector& names) | |
| 129 { | |
| 4390 | 130 return initialized |
| 131 ? kpse_path_find_first_of (p, names, true) : std::string (); | |
| 1786 | 132 } |
| 133 | |
| 134 string_vector | |
| 4242 | 135 dir_path::find_all_first_of (const string_vector& names) |
| 1786 | 136 { |
| 4390 | 137 return initialized |
| 138 ? kpse_all_path_find_first_of (p, names) : string_vector (); | |
| 1786 | 139 } |
| 140 | |
| 141 void | |
| 142 dir_path::init (void) | |
| 143 { | |
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parents:
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diff
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144 static bool octave_kpathsea_initialized = false; |
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parents:
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diff
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145 |
| 3174 | 146 if (! octave_kpathsea_initialized) |
| 1786 | 147 { |
| 4394 | 148 std::string val = octave_env::getenv ("KPATHSEA_DEBUG"); |
| 1786 | 149 |
| 4394 | 150 if (! val.empty ()) |
| 151 kpathsea_debug |= atoi (val.c_str ()); | |
| 3174 | 152 |
| 153 octave_kpathsea_initialized = true; | |
| 1786 | 154 } |
| 155 | |
| 4395 | 156 p = kpse_path_expand (p_default.empty () |
| 157 ? p_orig : kpse_expand_default (p_orig, p_default)); | |
| 3196 | 158 |
| 1786 | 159 int count = 0; |
| 4394 | 160 for (kpse_path_iterator pi (p); pi != NPOS; pi++) |
| 161 count++; | |
| 1786 | 162 |
| 163 pv.resize (count); | |
| 164 | |
| 4394 | 165 kpse_path_iterator pi (p); |
| 1786 | 166 |
| 167 for (int i = 0; i < count; i++) | |
| 4398 | 168 pv[i] = *pi++; |
| 1786 | 169 |
| 170 initialized = true; | |
| 171 } | |
| 172 | |
| 173 /* | |
| 174 ;;; Local Variables: *** | |
| 175 ;;; mode: C++ *** | |
| 176 ;;; End: *** | |
| 177 */ |