Mercurial > hg > octave-lyh
annotate src/ov-struct.cc @ 10066:2cd940306a06
make unwind_protect frames local
| author | Jaroslav Hajek <highegg@gmail.com> |
|---|---|
| date | Wed, 06 Jan 2010 13:18:41 +0100 |
| parents | 83bb2a78c07d |
| children | 9d1a14e12431 |
| rev | line source |
|---|---|
| 2376 | 1 /* |
| 2 | |
| 7017 | 3 Copyright (C) 1996, 1997, 1998, 2000, 2002, 2003, 2004, 2005, 2006, |
| 8920 | 4 2007, 2008, 2009 John W. Eaton |
| 2376 | 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. | |
| 2376 | 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/>. | |
| 2376 | 21 |
| 22 */ | |
| 23 | |
| 24 #ifdef HAVE_CONFIG_H | |
| 25 #include <config.h> | |
| 26 #endif | |
| 27 | |
| 3503 | 28 #include <iostream> |
| 2376 | 29 |
| 3933 | 30 #include "Cell.h" |
| 4358 | 31 #include "defun.h" |
| 2376 | 32 #include "error.h" |
| 4358 | 33 #include "gripes.h" |
| 2979 | 34 #include "oct-lvalue.h" |
| 3932 | 35 #include "ov-list.h" |
| 2376 | 36 #include "ov-struct.h" |
| 37 #include "unwind-prot.h" | |
| 6811 | 38 #include "utils.h" |
| 2948 | 39 #include "variables.h" |
| 2376 | 40 |
| 4750 | 41 #include "Array-util.h" |
|
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42 #include "oct-locbuf.h" |
| 4750 | 43 |
| 4687 | 44 #include "byte-swap.h" |
| 45 #include "ls-oct-ascii.h" | |
| 46 #include "ls-oct-binary.h" | |
| 47 #include "ls-hdf5.h" | |
| 48 #include "ls-utils.h" | |
| 5759 | 49 #include "pr-output.h" |
| 4687 | 50 |
| 3219 | 51 DEFINE_OCTAVE_ALLOCATOR(octave_struct); |
| 2376 | 52 |
| 4612 | 53 DEFINE_OV_TYPEID_FUNCTIONS_AND_DATA(octave_struct, "struct", "struct"); |
| 2376 | 54 |
| 4513 | 55 Cell |
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56 octave_struct::dotref (const octave_value_list& idx, bool auto_add) |
| 2962 | 57 { |
| 4513 | 58 Cell retval; |
| 3933 | 59 |
| 60 assert (idx.length () == 1); | |
| 2962 | 61 |
| 3933 | 62 std::string nm = idx(0).string_value (); |
| 63 | |
| 4219 | 64 Octave_map::const_iterator p = map.seek (nm); |
| 2376 | 65 |
| 4219 | 66 if (p != map.end ()) |
| 3933 | 67 retval = map.contents (p); |
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68 else if (auto_add) |
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69 retval = (numel () == 0) ? Cell (dim_vector (1)) : Cell (dims ()); |
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70 else |
| 2376 | 71 error ("structure has no member `%s'", nm.c_str ()); |
| 72 | |
| 73 return retval; | |
| 74 } | |
| 75 | |
| 4513 | 76 #if 0 |
| 3933 | 77 static void |
| 78 gripe_invalid_index (void) | |
| 79 { | |
| 80 error ("invalid index for structure array"); | |
| 81 } | |
| 4513 | 82 #endif |
| 3933 | 83 |
| 84 static void | |
| 85 gripe_invalid_index_for_assignment (void) | |
| 86 { | |
| 87 error ("invalid index for structure array assignment"); | |
| 88 } | |
| 89 | |
| 90 static void | |
| 91 gripe_invalid_index_type (const std::string& nm, char t) | |
| 92 { | |
| 93 error ("%s cannot be indexed with %c", nm.c_str (), t); | |
| 94 } | |
| 95 | |
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96 static void |
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97 gripe_failed_assignment (void) |
| 3933 | 98 { |
| 99 error ("assignment to structure element failed"); | |
| 100 } | |
| 101 | |
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102 octave_value_list |
| 4247 | 103 octave_struct::subsref (const std::string& type, |
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104 const std::list<octave_value_list>& idx, |
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105 int nargout) |
| 3933 | 106 { |
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107 octave_value_list retval; |
| 3933 | 108 |
| 109 int skip = 1; | |
| 110 | |
| 111 switch (type[0]) | |
| 112 { | |
| 113 case '(': | |
| 114 { | |
| 115 if (type.length () > 1 && type[1] == '.') | |
| 116 { | |
| 4219 | 117 std::list<octave_value_list>::const_iterator p = idx.begin (); |
| 118 octave_value_list key_idx = *++p; | |
| 3933 | 119 |
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120 const Cell tmp = dotref (key_idx); |
| 3933 | 121 |
| 122 if (! error_state) | |
| 123 { | |
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124 const Cell t = tmp.index (idx.front ()); |
| 3933 | 125 |
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126 retval(0) = (t.length () == 1) ? t(0) : octave_value (t, true); |
| 3933 | 127 |
| 4513 | 128 // We handled two index elements, so tell |
| 129 // next_subsref to skip both of them. | |
| 3933 | 130 |
| 4513 | 131 skip++; |
| 3933 | 132 } |
| 133 } | |
| 134 else | |
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135 retval(0) = map.index (idx.front ()); |
| 3933 | 136 } |
| 137 break; | |
| 138 | |
| 139 case '.': | |
| 140 { | |
| 5592 | 141 if (map.numel() > 0) |
| 142 { | |
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143 const Cell t = dotref (idx.front ()); |
| 3933 | 144 |
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145 retval(0) = (t.length () == 1) ? t(0) : octave_value (t, true); |
| 5592 | 146 } |
| 3933 | 147 } |
| 148 break; | |
| 149 | |
| 150 case '{': | |
| 151 gripe_invalid_index_type (type_name (), type[0]); | |
| 152 break; | |
| 153 | |
| 154 default: | |
| 155 panic_impossible (); | |
| 156 } | |
| 157 | |
| 5775 | 158 // FIXME -- perhaps there should be an |
| 4994 | 159 // octave_value_list::next_subsref member function? See also |
| 160 // octave_user_function::subsref. | |
| 161 | |
| 162 if (idx.size () > 1) | |
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163 retval = retval(0).next_subsref (nargout, type, idx, skip); |
| 3933 | 164 |
| 165 return retval; | |
| 166 } | |
| 167 | |
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168 octave_value |
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169 octave_struct::subsref (const std::string& type, |
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170 const std::list<octave_value_list>& idx, |
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171 bool auto_add) |
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172 { |
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173 octave_value retval; |
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174 |
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175 int skip = 1; |
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176 |
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177 switch (type[0]) |
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178 { |
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179 case '(': |
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180 { |
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181 if (type.length () > 1 && type[1] == '.') |
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182 { |
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183 std::list<octave_value_list>::const_iterator p = idx.begin (); |
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184 octave_value_list key_idx = *++p; |
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185 |
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186 const Cell tmp = dotref (key_idx, auto_add); |
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187 |
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188 if (! error_state) |
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189 { |
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190 const Cell t = tmp.index (idx.front (), auto_add); |
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191 |
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192 retval = (t.length () == 1) ? t(0) : octave_value (t, true); |
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193 |
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194 // We handled two index elements, so tell |
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195 // next_subsref to skip both of them. |
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196 |
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197 skip++; |
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198 } |
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199 } |
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200 else |
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201 retval = map.index (idx.front (), auto_add); |
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202 } |
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203 break; |
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204 |
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205 case '.': |
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206 { |
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207 if (map.numel() > 0) |
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208 { |
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209 const Cell t = dotref (idx.front (), auto_add); |
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210 |
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211 retval = (t.length () == 1) ? t(0) : octave_value (t, true); |
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212 } |
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213 } |
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214 break; |
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215 |
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216 case '{': |
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217 gripe_invalid_index_type (type_name (), type[0]); |
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218 break; |
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219 |
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220 default: |
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221 panic_impossible (); |
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222 } |
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223 |
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224 // FIXME -- perhaps there should be an |
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225 // octave_value_list::next_subsref member function? See also |
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226 // octave_user_function::subsref. |
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227 |
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228 if (idx.size () > 1) |
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229 retval = retval.next_subsref (auto_add, type, idx, skip); |
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230 |
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231 return retval; |
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232 } |
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233 |
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234 /* |
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235 %!test |
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236 %! x(1).a.a = 1; x(2).a.a = 2; |
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237 %! assert (size (x), [1, 2]); |
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238 %! assert (x(1).a.a, 1); |
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239 %! assert (x(2).a.a, 2); |
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240 */ |
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241 |
| 3933 | 242 octave_value |
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243 octave_struct::numeric_conv (const octave_value& val, |
| 3933 | 244 const std::string& type) |
| 245 { | |
| 246 octave_value retval; | |
| 247 | |
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248 if (type.length () > 0 && type[0] == '.' && ! val.is_map ()) |
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249 retval = Octave_map (); |
| 3933 | 250 else |
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251 retval = val; |
| 3933 | 252 |
| 253 return retval; | |
| 254 } | |
| 255 | |
| 256 octave_value | |
| 4247 | 257 octave_struct::subsasgn (const std::string& type, |
| 4219 | 258 const std::list<octave_value_list>& idx, |
| 3933 | 259 const octave_value& rhs) |
| 2376 | 260 { |
| 3933 | 261 octave_value retval; |
| 262 | |
| 263 int n = type.length (); | |
| 264 | |
| 265 octave_value t_rhs = rhs; | |
| 266 | |
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267 if (idx.front ().empty ()) |
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268 { |
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269 error ("missing index in indexed assignment"); |
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270 return retval; |
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271 } |
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272 |
| 3933 | 273 if (n > 1 && ! (type.length () == 2 && type[0] == '(' && type[1] == '.')) |
| 274 { | |
| 275 switch (type[0]) | |
| 276 { | |
| 277 case '(': | |
| 278 { | |
| 279 if (type.length () > 1 && type[1] == '.') | |
| 280 { | |
| 4219 | 281 std::list<octave_value_list>::const_iterator p = idx.begin (); |
| 282 octave_value_list t_idx = *p; | |
| 3933 | 283 |
| 4513 | 284 octave_value_list key_idx = *++p; |
| 285 | |
| 286 assert (key_idx.length () == 1); | |
| 3933 | 287 |
| 4513 | 288 std::string key = key_idx(0).string_value (); |
| 3933 | 289 |
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290 std::list<octave_value_list> next_idx (idx); |
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291 |
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292 // We handled two index elements, so subsasgn to |
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293 // needs to skip both of them. |
| 3933 | 294 |
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295 next_idx.erase (next_idx.begin ()); |
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296 next_idx.erase (next_idx.begin ()); |
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297 |
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298 std::string next_type = type.substr (2); |
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299 |
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300 Cell tmpc (1, 1); |
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301 Octave_map::iterator pkey = map.seek (key); |
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302 if (pkey != map.end ()) |
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303 { |
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304 pkey->second.make_unique (); |
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305 tmpc = pkey->second.index (idx.front (), true); |
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306 } |
| 3933 | 307 |
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308 // FIXME: better code reuse? cf. octave_cell::subsasgn and the case below. |
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309 if (! error_state) |
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310 { |
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311 if (tmpc.numel () == 1) |
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312 { |
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313 octave_value& tmp = tmpc(0); |
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314 |
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315 if (! tmp.is_defined () || tmp.is_zero_by_zero ()) |
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316 { |
| 8564 | 317 tmp = octave_value::empty_conv (next_type, rhs); |
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318 tmp.make_unique (); // probably a no-op. |
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319 } |
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320 else |
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321 // optimization: ignore the copy still stored inside our map. |
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322 tmp.make_unique (1); |
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323 |
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324 if (! error_state) |
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325 t_rhs = tmp.subsasgn (next_type, next_idx, rhs); |
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326 } |
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327 else |
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328 gripe_indexed_cs_list (); |
| 3933 | 329 } |
| 330 } | |
| 331 else | |
| 332 gripe_invalid_index_for_assignment (); | |
| 333 } | |
| 334 break; | |
| 335 | |
| 336 case '.': | |
| 337 { | |
| 338 octave_value_list key_idx = idx.front (); | |
| 339 | |
| 340 assert (key_idx.length () == 1); | |
| 341 | |
| 342 std::string key = key_idx(0).string_value (); | |
| 343 | |
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344 std::list<octave_value_list> next_idx (idx); |
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345 |
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346 next_idx.erase (next_idx.begin ()); |
| 3933 | 347 |
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348 std::string next_type = type.substr (1); |
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349 |
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350 Cell tmpc (1, 1); |
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351 Octave_map::iterator pkey = map.seek (key); |
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352 if (pkey != map.end ()) |
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353 { |
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354 pkey->second.make_unique (); |
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355 tmpc = pkey->second; |
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356 } |
| 3933 | 357 |
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358 // FIXME: better code reuse? |
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359 if (! error_state) |
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360 { |
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361 if (tmpc.numel () == 1) |
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362 { |
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363 octave_value& tmp = tmpc(0); |
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364 |
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365 if (! tmp.is_defined () || tmp.is_zero_by_zero ()) |
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366 { |
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367 tmp = octave_value::empty_conv (next_type, rhs); |
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368 tmp.make_unique (); // probably a no-op. |
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369 } |
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370 else |
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371 // optimization: ignore the copy still stored inside our map. |
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372 tmp.make_unique (1); |
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373 |
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374 if (! error_state) |
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375 t_rhs = tmp.subsasgn (next_type, next_idx, rhs); |
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376 } |
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377 else |
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378 gripe_indexed_cs_list (); |
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379 } |
| 3933 | 380 } |
| 381 break; | |
| 382 | |
| 383 case '{': | |
| 384 gripe_invalid_index_type (type_name (), type[0]); | |
| 385 break; | |
| 386 | |
| 387 default: | |
| 388 panic_impossible (); | |
| 389 } | |
| 390 } | |
| 391 | |
| 392 if (! error_state) | |
| 393 { | |
| 394 switch (type[0]) | |
| 395 { | |
| 396 case '(': | |
| 397 { | |
| 398 if (n > 1 && type[1] == '.') | |
| 399 { | |
| 4219 | 400 std::list<octave_value_list>::const_iterator p = idx.begin (); |
| 401 octave_value_list key_idx = *++p; | |
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402 octave_value_list idxf = idx.front (); |
| 3933 | 403 |
| 404 assert (key_idx.length () == 1); | |
| 405 | |
| 406 std::string key = key_idx(0).string_value (); | |
| 407 | |
| 408 if (! error_state) | |
| 409 { | |
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410 if (t_rhs.is_cs_list ()) |
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411 { |
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412 Cell tmp_cell = Cell (t_rhs.list_value ()); |
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413 |
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414 // Inquire the proper shape of the RHS. |
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415 |
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416 dim_vector didx = dims ().redim (idxf.length ()); |
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417 for (octave_idx_type k = 0; k < idxf.length (); k++) |
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418 if (! idxf(k).is_magic_colon ()) didx(k) = idxf(k).numel (); |
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419 |
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420 if (didx.numel () == tmp_cell.numel ()) |
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421 tmp_cell = tmp_cell.reshape (didx); |
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422 |
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423 |
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424 map.assign (idxf, key, tmp_cell); |
| 3933 | 425 |
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426 if (! error_state) |
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427 { |
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428 count++; |
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429 retval = octave_value (this); |
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430 } |
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431 else |
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432 gripe_failed_assignment (); |
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433 } |
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434 else |
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435 { |
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436 const Octave_map& cmap = const_cast<const Octave_map &> (map); |
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437 // cast map to const reference to avoid forced key insertion. |
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438 if (idxf.all_scalars () |
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439 || cmap.contents (key).index (idxf, true).numel () == 1) |
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440 { |
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441 map.assign (idxf, key, t_rhs.storable_value ()); |
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442 if (! error_state) |
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443 { |
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444 count++; |
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445 retval = octave_value (this); |
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446 } |
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447 else |
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448 gripe_failed_assignment (); |
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449 } |
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450 else if (! error_state) |
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451 gripe_nonbraced_cs_list_assignment (); |
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452 } |
| 3933 | 453 } |
| 454 else | |
| 455 gripe_failed_assignment (); | |
| 456 } | |
| 457 else | |
| 4197 | 458 { |
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459 if (t_rhs.is_map()) |
| 4197 | 460 { |
| 5592 | 461 Octave_map rhs_map = t_rhs.map_value (); |
| 4197 | 462 |
| 463 if (! error_state) | |
| 5592 | 464 { |
| 465 map.assign (idx.front (), rhs_map); | |
| 466 | |
| 467 if (! error_state) | |
| 5759 | 468 { |
| 469 count++; | |
| 470 retval = octave_value (this); | |
| 471 } | |
| 5592 | 472 else |
| 473 gripe_failed_assignment (); | |
| 474 } | |
| 4197 | 475 else |
| 5592 | 476 error ("invalid structure assignment"); |
| 4197 | 477 } |
| 4513 | 478 else |
| 5592 | 479 { |
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480 if (t_rhs.is_null_value()) |
| 5592 | 481 { |
| 482 map.maybe_delete_elements (idx.front()); | |
| 483 | |
| 484 if (! error_state) | |
| 5759 | 485 { |
| 486 count++; | |
| 487 retval = octave_value (this); | |
| 488 } | |
| 5592 | 489 else |
| 490 gripe_failed_assignment (); | |
| 491 } | |
| 492 else | |
| 493 error ("invalid structure assignment"); | |
| 494 } | |
| 4197 | 495 } |
| 3933 | 496 } |
| 497 break; | |
| 498 | |
| 499 case '.': | |
| 500 { | |
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501 octave_value_list key_idx = idx.front (); |
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502 |
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503 assert (key_idx.length () == 1); |
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504 |
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505 std::string key = key_idx(0).string_value (); |
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506 |
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507 if (t_rhs.is_cs_list ()) |
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508 { |
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509 Cell tmp_cell = Cell (t_rhs.list_value ()); |
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510 |
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511 // The shape of the RHS is irrelevant, we just want |
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512 // the number of elements to agree and to preserve the |
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513 // shape of the left hand side of the assignment. |
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514 |
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515 if (numel () == tmp_cell.numel ()) |
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516 tmp_cell = tmp_cell.reshape (dims ()); |
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517 |
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518 map.assign (key, tmp_cell); |
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519 } |
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520 else |
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521 // Regularize a null matrix if stored into a struct component. |
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522 map.assign (key, t_rhs.storable_value ()); |
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523 |
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524 if (! error_state) |
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525 { |
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526 count++; |
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527 retval = octave_value (this); |
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528 } |
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529 else |
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530 gripe_failed_assignment (); |
| 3933 | 531 } |
| 532 break; | |
| 533 | |
| 534 case '{': | |
| 535 gripe_invalid_index_type (type_name (), type[0]); | |
| 536 break; | |
| 537 | |
| 538 default: | |
| 539 panic_impossible (); | |
| 540 } | |
| 541 } | |
| 542 else | |
| 543 gripe_failed_assignment (); | |
| 544 | |
| 545 return retval; | |
| 2376 | 546 } |
| 547 | |
| 7046 | 548 octave_value |
| 549 octave_struct::do_index_op (const octave_value_list& idx, bool resize_ok) | |
| 550 { | |
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551 // Octave_map handles indexing itself. |
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552 return map.index (idx, resize_ok); |
| 7046 | 553 } |
| 554 | |
| 4791 | 555 size_t |
| 556 octave_struct::byte_size (void) const | |
| 557 { | |
| 558 // Neglect the size of the fieldnames. | |
| 559 | |
| 560 size_t retval = 0; | |
| 561 | |
| 562 for (Octave_map::const_iterator p = map.begin (); p != map.end (); p++) | |
| 563 { | |
| 564 std::string key = map.key (p); | |
| 565 | |
| 566 octave_value val = octave_value (map.contents (p)); | |
| 567 | |
| 568 retval += val.byte_size (); | |
| 569 } | |
| 570 | |
| 571 return retval; | |
| 572 } | |
| 573 | |
| 2376 | 574 void |
| 3523 | 575 octave_struct::print (std::ostream& os, bool) const |
| 2901 | 576 { |
| 577 print_raw (os); | |
| 578 } | |
| 579 | |
| 580 void | |
| 3523 | 581 octave_struct::print_raw (std::ostream& os, bool) const |
| 2376 | 582 { |
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583 unwind_protect frame; |
| 2376 | 584 |
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585 frame.protect_var (Vstruct_levels_to_print); |
| 2376 | 586 |
| 3961 | 587 if (Vstruct_levels_to_print >= 0) |
| 2376 | 588 { |
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589 bool print_keys_only = Vstruct_levels_to_print-- == 0; |
| 3961 | 590 |
| 2901 | 591 indent (os); |
| 592 os << "{"; | |
| 593 newline (os); | |
| 2376 | 594 |
| 2901 | 595 increment_indent_level (); |
| 2376 | 596 |
| 5598 | 597 octave_idx_type n = map.numel (); |
| 3932 | 598 |
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599 if (n != 1 || print_keys_only) |
| 4604 | 600 { |
| 601 indent (os); | |
| 602 dim_vector dv = dims (); | |
| 603 os << dv.str () << " struct array containing the fields:"; | |
| 604 newline (os); | |
| 605 newline (os); | |
| 606 | |
| 607 increment_indent_level (); | |
| 608 } | |
| 609 | |
| 5880 | 610 string_vector key_list = map.keys (); |
| 611 | |
| 612 for (octave_idx_type i = 0; i < key_list.length (); i++) | |
| 2376 | 613 { |
| 5880 | 614 std::string key = key_list[i]; |
| 615 | |
| 616 Cell val = map.contents (key); | |
| 2376 | 617 |
| 4499 | 618 octave_value tmp = (n == 1) ? val(0) : octave_value (val, true); |
| 3961 | 619 |
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620 if (n != 1 || print_keys_only) |
| 3932 | 621 { |
| 3961 | 622 indent (os); |
| 4604 | 623 os << key; |
| 624 if (n == 1) | |
| 625 { | |
| 626 dim_vector dv = tmp.dims (); | |
| 627 os << ": " << dv.str () << " " << tmp.type_name (); | |
| 628 } | |
| 3961 | 629 newline (os); |
| 3932 | 630 } |
| 3961 | 631 else |
| 4121 | 632 tmp.print_with_name (os, key); |
| 2376 | 633 } |
| 634 | |
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635 if (n != 1 || print_keys_only) |
| 4604 | 636 decrement_indent_level (); |
| 637 | |
| 2901 | 638 decrement_indent_level (); |
| 2376 | 639 |
| 2901 | 640 indent (os); |
| 641 os << "}"; | |
| 642 newline (os); | |
| 2376 | 643 } |
| 644 else | |
| 2901 | 645 { |
| 3961 | 646 indent (os); |
| 647 os << "<structure>"; | |
| 2901 | 648 newline (os); |
| 649 } | |
| 2376 | 650 } |
| 651 | |
| 2901 | 652 bool |
| 3523 | 653 octave_struct::print_name_tag (std::ostream& os, const std::string& name) const |
| 2901 | 654 { |
| 3961 | 655 bool retval = false; |
| 656 | |
| 2901 | 657 indent (os); |
| 3961 | 658 |
| 659 if (Vstruct_levels_to_print < 0) | |
| 660 os << name << " = "; | |
| 661 else | |
| 662 { | |
| 663 os << name << " ="; | |
| 664 newline (os); | |
| 665 retval = true; | |
| 666 } | |
| 667 | |
| 668 return retval; | |
| 2901 | 669 } |
| 670 | |
| 4744 | 671 static bool |
| 672 scalar (const dim_vector& dims) | |
| 673 { | |
| 674 return dims.length () == 2 && dims (0) == 1 && dims (1) == 1; | |
| 675 } | |
| 676 | |
| 677 /* | |
| 678 %!shared x | |
| 679 %! x(1).a=1; x(2).a=2; x(1).b=3; x(2).b=3; | |
| 680 %!assert(struct('a',1,'b',3),x(1)) | |
| 5592 | 681 %!assert(isempty(x([]))) |
| 682 %!assert(isempty(struct('a',{},'b',{}))) | |
| 4744 | 683 %!assert(struct('a',{1,2},'b',{3,3}),x) |
| 684 %!assert(struct('a',{1,2},'b',3),x) | |
| 685 %!assert(struct('a',{1,2},'b',{3}),x) | |
| 686 %!assert(struct('b',3,'a',{1,2}),x) | |
| 687 %!assert(struct('b',{3},'a',{1,2}),x) | |
| 688 %!test x=struct([]); | |
| 689 %!assert(size(x),[0,0]); | |
| 690 %!assert(isstruct(x)); | |
| 691 %!assert(isempty(fieldnames(x))); | |
| 692 %!fail("struct('a',{1,2},'b',{1,2,3})","dimensions of parameter 2 do not match those of parameter 4") | |
| 5582 | 693 %!fail("struct(1,2,3,4)","struct expects alternating \"field\", VALUE pairs"); |
| 694 %!fail("struct('1',2,'3')","struct expects alternating \"field\", VALUE pairs"); | |
| 4744 | 695 */ |
| 696 | |
| 697 DEFUN (struct, args, , | |
| 698 "-*- texinfo -*-\n\ | |
| 699 @deftypefn {Built-in Function} {} struct (\"field\", @var{value}, \"field\", @var{value}, @dots{})\n\ | |
| 700 \n\ | |
| 701 Create a structure and initialize its value.\n\ | |
| 702 \n\ | |
| 703 If the values are cell arrays, create a structure array and initialize\n\ | |
| 704 its values. The dimensions of each cell array of values must match.\n\ | |
| 705 Singleton cells and non-cell values are repeated so that they fill\n\ | |
| 706 the entire array. If the cells are empty, create an empty structure\n\ | |
| 4911 | 707 array with the specified field names.\n\ |
| 9190 | 708 \n\ |
| 709 If the argument is an object, return the underlying struct.\n\ | |
| 4911 | 710 @end deftypefn") |
| 4744 | 711 { |
| 6946 | 712 octave_value retval; |
| 4744 | 713 |
| 714 int nargin = args.length (); | |
| 715 | |
| 5444 | 716 // struct ([]) returns an empty struct. |
| 717 | |
| 718 // struct (empty_matrix) returns an empty struct with the same | |
| 719 // dimensions as the empty matrix. | |
| 720 | |
| 721 // Note that struct () creates a 1x1 struct with no fields for | |
| 722 // compatibility with Matlab. | |
| 4744 | 723 |
| 9190 | 724 if (nargin == 1 && args(0).is_object ()) |
| 725 { | |
| 726 Octave_map m = args(0).map_value (); | |
| 727 retval = octave_value (new octave_struct (m)); | |
| 728 | |
| 729 return retval; | |
| 730 } | |
| 731 | |
| 6946 | 732 if ((nargin == 1 || nargin == 2) |
| 733 && args(0).is_empty () && args(0).is_real_matrix ()) | |
| 734 { | |
| 735 Cell fields; | |
| 736 | |
| 737 if (nargin == 2) | |
| 738 { | |
| 739 if (args(1).is_cellstr ()) | |
| 740 retval = Octave_map (args(0).dims (), args(1).cell_value ()); | |
| 741 else | |
| 742 error ("struct: expecting cell array of field names as second argument"); | |
| 743 } | |
| 744 else | |
| 745 retval = Octave_map (args(0).dims ()); | |
| 746 | |
| 747 return retval; | |
| 748 } | |
| 4744 | 749 |
| 750 // Check for "field", VALUE pairs. | |
| 751 | |
| 752 for (int i = 0; i < nargin; i += 2) | |
| 753 { | |
| 754 if (! args(i).is_string () || i + 1 >= nargin) | |
| 755 { | |
| 756 error ("struct expects alternating \"field\", VALUE pairs"); | |
| 757 return retval; | |
| 758 } | |
| 759 } | |
| 760 | |
| 761 // Check that the dimensions of the values correspond. | |
| 762 | |
| 763 dim_vector dims (1, 1); | |
| 764 | |
| 765 int first_dimensioned_value = 0; | |
| 766 | |
| 767 for (int i = 1; i < nargin; i += 2) | |
| 768 { | |
| 769 if (args(i).is_cell ()) | |
| 770 { | |
| 771 dim_vector argdims (args(i).dims ()); | |
| 772 | |
| 773 if (! scalar (argdims)) | |
| 774 { | |
| 775 if (! first_dimensioned_value) | |
| 776 { | |
| 777 dims = argdims; | |
| 778 first_dimensioned_value = i + 1; | |
| 779 } | |
| 780 else if (dims != argdims) | |
| 781 { | |
| 782 error ("struct: dimensions of parameter %d do not match those of parameter %d", | |
| 783 first_dimensioned_value, i+1); | |
| 784 return retval; | |
| 785 } | |
| 786 } | |
| 787 } | |
| 788 } | |
| 789 | |
| 790 // Create the return value. | |
| 791 | |
| 792 Octave_map map (dims); | |
| 793 | |
| 794 for (int i = 0; i < nargin; i+= 2) | |
| 795 { | |
| 796 // Get key. | |
| 797 | |
| 798 std::string key (args(i).string_value ()); | |
| 799 | |
| 800 if (error_state) | |
| 801 return retval; | |
| 802 | |
| 6811 | 803 if (! valid_identifier (key)) |
| 804 { | |
| 805 error ("struct: invalid structure field name `%s'", key.c_str ()); | |
| 806 return retval; | |
| 807 } | |
| 808 | |
| 4744 | 809 // Value may be v, { v }, or { v1, v2, ... } |
| 810 // In the first two cases, we need to create a cell array of | |
| 811 // the appropriate dimensions filled with v. In the last case, | |
| 812 // the cell array has already been determined to be of the | |
| 813 // correct dimensions. | |
| 814 | |
| 815 if (args(i+1).is_cell ()) | |
| 816 { | |
| 817 const Cell c (args(i+1).cell_value ()); | |
| 818 | |
| 819 if (error_state) | |
| 820 return retval; | |
| 821 | |
| 822 if (scalar (c.dims ())) | |
| 823 map.assign (key, Cell (dims, c(0))); | |
| 824 else | |
| 825 map.assign (key, c); | |
| 826 } | |
| 827 else | |
| 828 map.assign (key, Cell (dims, args(i+1))); | |
| 829 | |
| 830 if (error_state) | |
| 831 return retval; | |
| 832 } | |
| 6946 | 833 |
| 4744 | 834 return octave_value (map); |
| 835 } | |
| 836 | |
| 4358 | 837 DEFUN (isstruct, args, , |
| 838 "-*- texinfo -*-\n\ | |
| 839 @deftypefn {Built-in Function} {} isstruct (@var{expr})\n\ | |
| 840 Return 1 if the value of the expression @var{expr} is a structure.\n\ | |
| 841 @end deftypefn") | |
| 842 { | |
| 843 octave_value retval; | |
| 844 | |
| 845 if (args.length () == 1) | |
| 846 retval = args(0).is_map (); | |
| 847 else | |
| 5823 | 848 print_usage (); |
| 4358 | 849 |
| 850 return retval; | |
| 851 } | |
| 852 | |
| 853 DEFUN (fieldnames, args, , | |
| 854 "-*- texinfo -*-\n\ | |
| 855 @deftypefn {Built-in Function} {} fieldnames (@var{struct})\n\ | |
| 856 Return a cell array of strings naming the elements of the structure\n\ | |
| 857 @var{struct}. It is an error to call @code{fieldnames} with an\n\ | |
| 858 argument that is not a structure.\n\ | |
| 859 @end deftypefn") | |
| 860 { | |
| 861 octave_value retval; | |
| 862 | |
| 863 int nargin = args.length (); | |
| 864 | |
| 865 if (nargin == 1) | |
| 866 { | |
| 7336 | 867 octave_value arg = args(0); |
| 868 | |
| 869 if (arg.is_map () || arg.is_object ()) | |
| 4358 | 870 { |
| 7336 | 871 Octave_map m = arg.map_value (); |
| 872 | |
| 4744 | 873 string_vector keys = m.keys (); |
| 7336 | 874 |
| 4744 | 875 if (keys.length () == 0) |
| 876 retval = Cell (0, 1); | |
| 877 else | |
| 878 retval = Cell (m.keys ()); | |
| 4358 | 879 } |
| 880 else | |
| 881 gripe_wrong_type_arg ("fieldnames", args(0)); | |
| 882 } | |
| 883 else | |
| 5823 | 884 print_usage (); |
| 4358 | 885 |
| 886 return retval; | |
| 887 } | |
| 888 | |
| 889 DEFUN (isfield, args, , | |
| 890 "-*- texinfo -*-\n\ | |
| 891 @deftypefn {Built-in Function} {} isfield (@var{expr}, @var{name})\n\ | |
| 892 Return true if the expression @var{expr} is a structure and it includes an\n\ | |
| 893 element named @var{name}. The first argument must be a structure and\n\ | |
| 894 the second must be a string.\n\ | |
| 895 @end deftypefn") | |
| 896 { | |
| 897 octave_value retval; | |
| 898 | |
| 899 int nargin = args.length (); | |
| 900 | |
| 901 if (nargin == 2) | |
| 902 { | |
| 903 retval = false; | |
| 904 | |
| 5775 | 905 // FIXME -- should this work for all types that can do |
| 4358 | 906 // structure reference operations? |
| 907 | |
| 908 if (args(0).is_map () && args(1).is_string ()) | |
| 909 { | |
| 910 std::string key = args(1).string_value (); | |
| 911 | |
| 912 Octave_map m = args(0).map_value (); | |
| 913 | |
| 914 retval = m.contains (key) != 0; | |
| 915 } | |
| 916 } | |
| 917 else | |
| 5823 | 918 print_usage (); |
| 4358 | 919 |
| 920 return retval; | |
| 921 } | |
| 922 | |
| 9784 | 923 DEFUN (nfields, args, , |
| 924 "-*- texinfo -*-\n\ | |
| 925 @deftypefn {Built-in Function} {} nfields (@var{s})\n\ | |
| 926 Return the number of fields of the structure @var{s}.\n\ | |
| 927 @end deftypefn") | |
| 928 { | |
| 929 octave_value retval; | |
| 930 | |
| 931 int nargin = args.length (); | |
| 932 | |
| 933 if (nargin == 1 && args(0).is_map ()) | |
| 934 { | |
| 935 retval = static_cast<double> (args(0).nfields ()); | |
| 936 } | |
| 937 else | |
| 938 print_usage (); | |
| 939 | |
| 940 return retval; | |
| 941 } | |
| 942 | |
| 4750 | 943 // Check that the dimensions of the input arguments are correct. |
| 944 | |
| 945 static bool | |
| 946 cell2struct_check_args (const dim_vector& c_dv, const dim_vector& f_dv, | |
| 947 bool is_cell, int dim) | |
| 948 { | |
| 4751 | 949 bool retval = true; |
| 4750 | 950 |
| 951 if (dim >= 0 && dim < c_dv.length ()) | |
| 952 { | |
| 953 if (is_cell) | |
| 954 { | |
| 4752 | 955 if (f_dv.numel () != c_dv(dim)) |
| 4750 | 956 { |
| 4751 | 957 error ("cell2struct: numel (FIELD) != size (CELL, DIM)"); |
| 4750 | 958 |
| 959 retval = false; | |
| 960 } | |
| 961 } | |
| 962 else | |
| 963 { | |
| 964 if (f_dv.length () > 2) | |
| 965 { | |
| 4751 | 966 error ("cell2struct: field array must be a 2-d matrix"); |
| 4750 | 967 |
| 968 retval = false; | |
| 969 } | |
| 970 else if (f_dv(0) != c_dv(dim)) | |
| 971 { | |
| 4751 | 972 error ("cell2struct: size (FIELD, 1) != length (C, DIM)"); |
| 4750 | 973 |
| 974 retval = false; | |
| 975 } | |
| 976 } | |
| 977 } | |
| 978 else | |
| 979 { | |
| 980 error ("cell2struct: DIM out of range"); | |
| 981 | |
| 982 retval = false; | |
| 983 } | |
| 984 | |
| 985 return retval; | |
| 986 } | |
| 987 | |
| 988 static void | |
| 5275 | 989 cell2struct_construct_idx (Array<octave_idx_type>& ra_idx1, |
| 990 const Array<octave_idx_type>& ra_idx2, | |
| 991 octave_idx_type dim, octave_idx_type fill_value) | |
| 4750 | 992 { |
| 5275 | 993 octave_idx_type iidx = 0; |
| 4750 | 994 |
| 5275 | 995 for (octave_idx_type idx = 0; idx < ra_idx1.length (); idx++) |
| 4750 | 996 { |
| 997 if (idx == dim) | |
| 998 ra_idx1.elem (idx) = fill_value; | |
| 999 else | |
| 1000 ra_idx1.elem (idx) = ra_idx2(iidx++); | |
| 1001 } | |
| 1002 } | |
| 1003 | |
| 1004 DEFUN (cell2struct, args, , | |
| 1005 "-*- texinfo -*-\n\ | |
| 4817 | 1006 @deftypefn {Built-in Function} {} cell2struct (@var{cell}, @var{fields}, @var{dim})\n\ |
|
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1007 Convert @var{cell} to a structure. The number of fields in @var{fields}\n\ |
| 4817 | 1008 must match the number of elements in @var{cell} along dimension @var{dim},\n\ |
| 1009 that is @code{numel (@var{fields}) == size (@var{cell}, @var{dim})}.\n\ | |
| 4750 | 1010 \n\ |
| 1011 @example\n\ | |
| 1012 @group\n\ | |
| 7031 | 1013 A = cell2struct (@{'Peter', 'Hannah', 'Robert';\n\ |
| 1014 185, 170, 168@},\n\ | |
| 6519 | 1015 @{'Name','Height'@}, 1);\n\ |
| 4750 | 1016 A(1)\n\ |
| 1017 @result{} ans =\n\ | |
| 4780 | 1018 @{\n\ |
| 1019 Height = 185\n\ | |
| 1020 Name = Peter\n\ | |
| 1021 @}\n\ | |
| 4750 | 1022 \n\ |
| 1023 @end group\n\ | |
| 1024 @end example\n\ | |
| 1025 @end deftypefn") | |
| 1026 { | |
| 1027 octave_value retval; | |
| 1028 | |
| 4751 | 1029 if (args.length () == 3) |
| 4750 | 1030 { |
| 4751 | 1031 Cell c = args(0).cell_value (); |
| 4750 | 1032 |
| 4751 | 1033 if (! error_state) |
| 4750 | 1034 { |
| 4751 | 1035 octave_value field = args(1); |
| 4750 | 1036 |
| 4751 | 1037 // Field is either cell or character matrix. |
| 4750 | 1038 |
| 5775 | 1039 // FIXME -- this could be simplified if we had |
| 4752 | 1040 // cellstr and iscellstr functions available. |
| 1041 | |
| 4751 | 1042 bool field_is_cell = field.is_cell (); |
| 4750 | 1043 |
| 4751 | 1044 Cell field_cell; |
| 1045 charMatrix field_char; | |
| 4750 | 1046 |
| 1047 if (field_is_cell) | |
| 4751 | 1048 field_cell = field.cell_value (); |
| 1049 else | |
| 1050 field_char = field.char_matrix_value (); | |
| 1051 | |
| 1052 if (! error_state) | |
| 4750 | 1053 { |
| 4751 | 1054 // Retrieve the dimension value. |
| 1055 | |
| 5775 | 1056 // FIXME -- int_value () should print out the |
| 4751 | 1057 // conversions it does to be Matlab compatible. |
| 1058 | |
| 5275 | 1059 octave_idx_type dim = args(2).int_value () - 1; |
| 4751 | 1060 |
| 1061 if (! error_state) | |
| 1062 { | |
| 1063 dim_vector c_dv = c.dims (); | |
| 1064 dim_vector field_dv = field.dims (); | |
| 1065 | |
| 1066 if (cell2struct_check_args (c_dv, field_dv, field_is_cell, | |
| 1067 dim)) | |
| 1068 { | |
| 5275 | 1069 octave_idx_type c_dv_length = c_dv.length (); |
| 4751 | 1070 |
| 1071 // Dimension vector for the Cell arrays to be | |
| 1072 // put into the structure. | |
| 1073 | |
| 1074 dim_vector value_dv; | |
| 1075 | |
| 1076 // Initialize c_value_dv. | |
| 4750 | 1077 |
| 4751 | 1078 if (c_dv_length == 2) |
| 1079 value_dv = dim_vector (1, 1); | |
| 1080 else | |
| 1081 value_dv.resize (c_dv_length - 1); | |
| 1082 | |
| 5275 | 1083 octave_idx_type idx_tmp = 0; |
| 4751 | 1084 |
| 5275 | 1085 for (octave_idx_type i = 0; i < c_dv_length; i++) |
| 4751 | 1086 { |
| 1087 if (i != dim) | |
| 1088 value_dv.elem (idx_tmp++) = c_dv.elem (i); | |
| 1089 } | |
| 1090 | |
| 1091 // All initializing is done, we can start moving | |
| 1092 // values. | |
| 1093 | |
| 1094 Octave_map map; | |
| 1095 | |
| 1096 // If field is a cell array then we use all | |
| 1097 // elements in array, on the other hand when | |
| 1098 // field is a character array the number of | |
| 1099 // elements is equals the number of rows. | |
| 1100 | |
| 5275 | 1101 octave_idx_type field_numel |
| 4751 | 1102 = field_is_cell ? field_dv.numel (): field_dv(0); |
| 1103 | |
| 1104 // For matlab compatibility. | |
| 1105 | |
| 1106 if (field_numel == 0) | |
| 1107 map.reshape (dim_vector (0, 1)); | |
| 4750 | 1108 |
| 5275 | 1109 for (octave_idx_type i = 0; i < field_numel; i++) |
| 4751 | 1110 { |
| 1111 // Construct cell array which goes into the | |
| 1112 // structure together with the appropriate | |
| 1113 // field name. | |
| 1114 | |
| 1115 Cell c_value (value_dv); | |
| 1116 | |
| 5275 | 1117 Array<octave_idx_type> value_idx (value_dv.length (), 0); |
| 1118 Array<octave_idx_type> c_idx (c_dv_length, 0); | |
| 4751 | 1119 |
| 5275 | 1120 for (octave_idx_type j = 0; j < value_dv.numel (); j++) |
| 4751 | 1121 { |
| 1122 // Need to do this to construct the | |
| 1123 // appropriate idx for getting elements | |
| 1124 // from the original cell array. | |
| 1125 | |
| 1126 cell2struct_construct_idx (c_idx, value_idx, | |
| 1127 dim, i); | |
| 1128 | |
| 1129 c_value.elem (value_idx) = c.elem (c_idx); | |
| 1130 | |
| 1131 increment_index (value_idx, value_dv); | |
| 1132 } | |
| 1133 | |
| 1134 std::string field_str; | |
| 4750 | 1135 |
| 4751 | 1136 if (field_is_cell) |
| 1137 { | |
| 1138 // Matlab retrieves the field values | |
| 1139 // column by column. | |
| 1140 | |
| 1141 octave_value field_tmp = field_cell.elem (i); | |
| 1142 | |
| 1143 field_str = field_tmp.string_value (); | |
| 1144 | |
| 1145 if (error_state) | |
| 1146 { | |
| 1147 error ("cell2struct: fields have to be of type string"); | |
| 1148 break; | |
| 1149 } | |
| 1150 } | |
| 1151 else | |
| 1152 { | |
| 1153 field_str = field_char.row_as_string (i); | |
| 1154 | |
| 1155 if (error_state) | |
| 1156 return retval; | |
| 1157 } | |
| 1158 | |
| 6811 | 1159 if (! valid_identifier (field_str)) |
| 1160 { | |
| 1161 error ("cell2struct: invalid field name `%s'", | |
| 1162 field_str.c_str ()); | |
| 1163 break; | |
| 1164 } | |
| 1165 | |
| 4751 | 1166 map.reshape (value_dv); |
| 1167 | |
| 1168 map.assign (field_str, c_value); | |
| 1169 } | |
| 1170 | |
| 1171 if (! error_state) | |
| 1172 retval = map; | |
| 1173 } | |
| 4750 | 1174 } |
| 4751 | 1175 else |
| 1176 error ("cell2struct: expecting third argument to be an integer"); | |
| 4750 | 1177 } |
| 1178 else | |
| 4751 | 1179 error ("cell2struct: expecting second argument to be a cell or character array"); |
| 4750 | 1180 } |
| 4751 | 1181 else |
| 1182 error ("cell2struct: expecting first argument to be a cell array"); | |
| 4750 | 1183 } |
| 4751 | 1184 else |
| 5823 | 1185 print_usage (); |
| 4750 | 1186 |
| 1187 return retval; | |
| 1188 } | |
| 1189 | |
| 4817 | 1190 // So we can call Fcellstr directly. |
| 1191 extern octave_value_list Fcellstr (const octave_value_list& args, int); | |
| 1192 | |
| 1193 DEFUN (rmfield, args, , | |
| 1194 "-*- texinfo -*-\n\ | |
| 1195 @deftypefn {Built-in Function} {} rmfield (@var{s}, @var{f})\n\ | |
| 1196 Remove field @var{f} from the structure @var{s}. If @var{f} is a\n\ | |
| 1197 cell array of character strings or a character array, remove the\n\ | |
| 1198 named fields.\n\ | |
| 5642 | 1199 @seealso{cellstr, iscellstr, setfield}\n\ |
| 1200 @end deftypefn") | |
| 4817 | 1201 { |
| 1202 octave_value retval; | |
| 1203 | |
| 1204 int nargin = args.length (); | |
| 1205 | |
| 1206 if (nargin == 2) | |
| 1207 { | |
| 1208 Octave_map m = args(0).map_value (); | |
| 1209 | |
| 1210 octave_value_list fval = Fcellstr (args(1), 1); | |
| 1211 | |
| 1212 if (! error_state) | |
| 1213 { | |
| 1214 Cell fcell = fval(0).cell_value (); | |
| 1215 | |
| 1216 for (int i = 0; i < fcell.numel (); i++) | |
| 1217 { | |
| 1218 std::string key = fcell(i).string_value (); | |
| 1219 | |
| 1220 if (m.contains (key)) | |
| 1221 m.del (key); | |
| 1222 else | |
| 1223 { | |
| 1224 error ("rmfield: structure does not contain field %s", | |
| 1225 key.c_str ()); | |
| 1226 | |
| 1227 break; | |
| 1228 } | |
| 1229 } | |
| 1230 | |
| 1231 if (! error_state) | |
| 1232 retval = m; | |
| 1233 } | |
| 1234 } | |
| 1235 else | |
| 5823 | 1236 print_usage (); |
| 4817 | 1237 |
| 1238 return retval; | |
| 1239 } | |
| 1240 | |
| 1241 bool | |
| 6974 | 1242 octave_struct::save_ascii (std::ostream& os) |
| 4817 | 1243 { |
| 1244 Octave_map m = map_value (); | |
|
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1245 |
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1246 octave_idx_type nf = m.nfields (); |
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1247 |
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1248 const dim_vector dv = dims (); |
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1249 |
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1250 os << "# ndims: " << dv.length () << "\n"; |
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1251 |
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1252 for (int i = 0; i < dv.length (); i++) |
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1253 os << " " << dv (i); |
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1254 os << "\n"; |
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1255 |
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1256 os << "# length: " << nf << "\n"; |
| 4817 | 1257 |
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1258 // Iterating over the list of keys will preserve the order of the |
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1259 // fields. |
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1260 string_vector keys = m.keys (); |
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1261 |
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1262 for (octave_idx_type i = 0; i < nf; i++) |
| 4817 | 1263 { |
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1264 std::string key = keys(i); |
| 4817 | 1265 |
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1266 octave_value val = map.contents (key); |
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1267 |
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1268 bool b = save_ascii_data (os, val, key, false, 0); |
| 4817 | 1269 |
| 1270 if (! b) | |
| 1271 return os; | |
| 1272 } | |
| 1273 | |
| 1274 return true; | |
| 1275 } | |
| 1276 | |
| 1277 bool | |
| 1278 octave_struct::load_ascii (std::istream& is) | |
| 1279 { | |
| 5275 | 1280 octave_idx_type len = 0; |
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1281 dim_vector dv (1, 1); |
| 4817 | 1282 bool success = true; |
| 1283 | |
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1284 // KLUGE: earlier Octave versions did not save extra dimensions with struct, |
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1285 // and as a result did not preserve dimensions for empty structs. |
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1286 // The default dimensions were 1x1, which we want to preserve. |
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1287 string_vector keywords(2); |
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1288 |
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1289 keywords[0] = "ndims"; |
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1290 keywords[1] = "length"; |
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1291 |
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1292 std::string kw; |
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1293 |
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1294 if (extract_keyword (is, keywords, kw, len, true)) |
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1295 { |
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1296 if (kw == keywords[0]) |
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1297 { |
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1298 int mdims = std::max (len, 2); |
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1299 dv.resize (mdims); |
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1300 for (int i = 0; i < mdims; i++) |
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1301 is >> dv(i); |
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1302 |
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1303 success = extract_keyword (is, keywords[1], len); |
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1304 } |
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1305 } |
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1306 else |
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1307 success = false; |
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1308 |
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1309 if (success && len >= 0) |
| 4817 | 1310 { |
| 1311 if (len > 0) | |
| 1312 { | |
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1313 Octave_map m (dv); |
| 4817 | 1314 |
| 5275 | 1315 for (octave_idx_type j = 0; j < len; j++) |
| 4817 | 1316 { |
| 1317 octave_value t2; | |
| 1318 bool dummy; | |
| 1319 | |
| 1320 // recurse to read cell elements | |
| 1321 std::string nm | |
| 5756 | 1322 = read_ascii_data (is, std::string (), dummy, t2, j); |
| 4817 | 1323 |
| 1324 if (!is) | |
| 1325 break; | |
| 1326 | |
| 6293 | 1327 Cell tcell = t2.is_cell () ? t2.cell_value () : Cell (t2); |
| 5433 | 1328 |
| 6293 | 1329 if (error_state) |
| 1330 { | |
| 1331 error ("load: internal error loading struct elements"); | |
| 1332 return false; | |
| 1333 } | |
| 5433 | 1334 |
| 6293 | 1335 m.assign (nm, tcell); |
| 4817 | 1336 } |
| 1337 | |
| 1338 if (is) | |
| 1339 map = m; | |
| 1340 else | |
| 1341 { | |
| 1342 error ("load: failed to load structure"); | |
| 1343 success = false; | |
| 1344 } | |
| 1345 } | |
| 1346 else if (len == 0 ) | |
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1347 map = Octave_map (dv); |
| 4817 | 1348 else |
| 1349 panic_impossible (); | |
| 1350 } | |
| 1351 else { | |
| 1352 error ("load: failed to extract number of elements in structure"); | |
| 1353 success = false; | |
| 1354 } | |
| 1355 | |
| 1356 return success; | |
| 1357 } | |
| 1358 | |
| 1359 bool | |
| 1360 octave_struct::save_binary (std::ostream& os, bool& save_as_floats) | |
| 1361 { | |
| 1362 Octave_map m = map_value (); | |
| 1363 | |
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1364 octave_idx_type nf = m.nfields (); |
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1365 |
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1366 dim_vector d = dims (); |
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1367 if (d.length () < 1) |
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1368 return false; |
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1369 |
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1370 // Use negative value for ndims |
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1371 int32_t di = - d.length(); |
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1372 os.write (reinterpret_cast<char *> (&di), 4); |
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1373 for (int i = 0; i < d.length (); i++) |
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1374 { |
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1375 di = d(i); |
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1376 os.write (reinterpret_cast<char *> (&di), 4); |
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1377 } |
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1378 |
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1379 int32_t len = nf; |
| 5760 | 1380 os.write (reinterpret_cast<char *> (&len), 4); |
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1381 |
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1382 // Iterating over the list of keys will preserve the order of the |
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1383 // fields. |
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1384 string_vector keys = m.keys (); |
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1385 |
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1386 for (octave_idx_type i = 0; i < nf; i++) |
| 4817 | 1387 { |
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1388 std::string key = keys(i); |
| 4817 | 1389 |
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1390 octave_value val = map.contents (key); |
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1391 |
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1392 bool b = save_binary_data (os, val, key, "", 0, save_as_floats); |
| 4817 | 1393 |
| 1394 if (! b) | |
| 1395 return os; | |
| 1396 } | |
| 1397 | |
| 1398 return true; | |
| 1399 } | |
| 1400 | |
| 1401 bool | |
| 1402 octave_struct::load_binary (std::istream& is, bool swap, | |
| 5760 | 1403 oct_mach_info::float_format fmt) |
| 4817 | 1404 { |
| 1405 bool success = true; | |
| 5828 | 1406 int32_t len; |
| 5760 | 1407 if (! is.read (reinterpret_cast<char *> (&len), 4)) |
| 4817 | 1408 return false; |
| 1409 if (swap) | |
| 4944 | 1410 swap_bytes<4> (&len); |
| 4817 | 1411 |
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1412 dim_vector dv (1, 1); |
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1413 |
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1414 if (len < 0) |
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1415 { |
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1416 // We have explicit dimensions. |
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1417 int mdims = -len; |
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1418 |
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1419 int32_t di; |
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1420 dv.resize (mdims); |
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1421 |
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1422 for (int i = 0; i < mdims; i++) |
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1423 { |
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1424 if (! is.read (reinterpret_cast<char *> (&di), 4)) |
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1425 return false; |
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1426 if (swap) |
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1427 swap_bytes<4> (&di); |
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1428 dv(i) = di; |
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1429 } |
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1430 |
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1431 if (! is.read (reinterpret_cast<char *> (&len), 4)) |
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1432 return false; |
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1433 if (swap) |
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1434 swap_bytes<4> (&len); |
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1435 } |
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1436 |
| 4817 | 1437 if (len > 0) |
| 1438 { | |
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1439 Octave_map m (dv); |
| 4817 | 1440 |
| 5275 | 1441 for (octave_idx_type j = 0; j < len; j++) |
| 4817 | 1442 { |
| 1443 octave_value t2; | |
| 1444 bool dummy; | |
| 1445 std::string doc; | |
| 1446 | |
| 1447 // recurse to read cell elements | |
| 1448 std::string nm = read_binary_data (is, swap, fmt, std::string (), | |
| 1449 dummy, t2, doc); | |
| 1450 | |
| 1451 if (!is) | |
| 1452 break; | |
| 1453 | |
| 6293 | 1454 Cell tcell = t2.is_cell () ? t2.cell_value () : Cell (t2); |
| 5433 | 1455 |
| 6293 | 1456 if (error_state) |
| 1457 { | |
| 1458 error ("load: internal error loading struct elements"); | |
| 1459 return false; | |
| 1460 } | |
| 5433 | 1461 |
| 6293 | 1462 m.assign (nm, tcell); |
| 4817 | 1463 } |
| 1464 | |
| 1465 if (is) | |
| 1466 map = m; | |
| 1467 else | |
| 1468 { | |
| 1469 error ("load: failed to load structure"); | |
| 1470 success = false; | |
| 1471 } | |
| 1472 } | |
|
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1473 else if (len == 0) |
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1474 map = Octave_map (dv); |
| 4817 | 1475 else |
|
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1476 success = false; |
| 4817 | 1477 |
| 1478 return success; | |
| 1479 } | |
| 1480 | |
| 1481 #if defined (HAVE_HDF5) | |
| 1482 | |
| 1483 bool | |
| 1484 octave_struct::save_hdf5 (hid_t loc_id, const char *name, bool save_as_floats) | |
| 1485 { | |
| 1486 hid_t data_hid = -1; | |
| 1487 | |
|
9892
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1488 #if HAVE_HDF5_18 |
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1489 data_hid = H5Gcreate (loc_id, name, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT); |
|
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1490 #else |
| 4817 | 1491 data_hid = H5Gcreate (loc_id, name, 0); |
|
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1492 #endif |
| 4817 | 1493 if (data_hid < 0) return false; |
| 1494 | |
| 1495 // recursively add each element of the structure to this group | |
| 1496 Octave_map m = map_value (); | |
|
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1497 |
|
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1498 octave_idx_type nf = m.nfields (); |
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1499 |
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1500 // Iterating over the list of keys will preserve the order of the |
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1501 // fields. |
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1502 string_vector keys = m.keys (); |
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1503 |
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1504 for (octave_idx_type i = 0; i < nf; i++) |
| 4817 | 1505 { |
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1506 std::string key = keys(i); |
| 4817 | 1507 |
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1508 octave_value val = map.contents (key); |
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1509 |
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1510 bool retval2 = add_hdf5_data (data_hid, val, key, "", false, |
| 4817 | 1511 save_as_floats); |
| 1512 | |
| 1513 if (! retval2) | |
| 1514 break; | |
| 1515 } | |
| 1516 | |
| 1517 H5Gclose (data_hid); | |
| 4837 | 1518 |
| 4817 | 1519 return true; |
| 1520 } | |
| 1521 | |
| 1522 bool | |
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1523 octave_struct::load_hdf5 (hid_t loc_id, const char *name) |
| 4817 | 1524 { |
| 1525 bool retval = false; | |
| 1526 | |
| 1527 hdf5_callback_data dsub; | |
| 1528 | |
| 1529 herr_t retval2 = 0; | |
| 6292 | 1530 Octave_map m (dim_vector (1, 1)); |
| 4817 | 1531 int current_item = 0; |
| 1532 hsize_t num_obj = 0; | |
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1533 #if HAVE_HDF5_18 |
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1534 hid_t group_id = H5Gopen (loc_id, name, H5P_DEFAULT); |
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1535 #else |
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1536 hid_t group_id = H5Gopen (loc_id, name); |
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1537 #endif |
| 5060 | 1538 H5Gget_num_objs (group_id, &num_obj); |
| 1539 H5Gclose (group_id); | |
| 4817 | 1540 |
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1541 // FIXME -- fields appear to be sorted alphabetically on loading. |
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1542 // Why is that happening? |
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1543 |
| 4817 | 1544 while (current_item < static_cast<int> (num_obj) |
| 1545 && (retval2 = H5Giterate (loc_id, name, ¤t_item, | |
| 1546 hdf5_read_next_data, &dsub)) > 0) | |
| 1547 { | |
| 5342 | 1548 octave_value t2 = dsub.tc; |
| 1549 | |
| 6293 | 1550 Cell tcell = t2.is_cell () ? t2.cell_value () : Cell (t2); |
| 5433 | 1551 |
| 6293 | 1552 if (error_state) |
| 1553 { | |
| 1554 error ("load: internal error loading struct elements"); | |
| 1555 return false; | |
| 1556 } | |
| 5433 | 1557 |
| 6293 | 1558 m.assign (dsub.name, tcell); |
| 5336 | 1559 |
| 4817 | 1560 } |
| 1561 | |
| 1562 if (retval2 >= 0) | |
| 1563 { | |
| 1564 map = m; | |
| 1565 retval = true; | |
| 1566 } | |
| 1567 | |
| 1568 return retval; | |
| 1569 } | |
| 1570 | |
| 4687 | 1571 #endif |
| 1572 | |
| 5900 | 1573 mxArray * |
| 1574 octave_struct::as_mxArray (void) const | |
| 1575 { | |
| 1576 int nf = nfields (); | |
| 1577 string_vector kv = map_keys (); | |
| 6065 | 1578 |
| 1579 OCTAVE_LOCAL_BUFFER (const char *, f, nf); | |
| 1580 | |
| 5900 | 1581 for (int i = 0; i < nf; i++) |
| 6065 | 1582 f[i] = kv[i].c_str (); |
| 5900 | 1583 |
| 1584 mxArray *retval = new mxArray (dims (), nf, f); | |
| 1585 | |
| 1586 mxArray **elts = static_cast<mxArray **> (retval->get_data ()); | |
| 1587 | |
| 6686 | 1588 mwSize nel = numel (); |
| 5900 | 1589 |
| 6686 | 1590 mwSize ntot = nf * nel; |
| 5900 | 1591 |
| 1592 for (int i = 0; i < nf; i++) | |
| 1593 { | |
| 1594 Cell c = map.contents (kv[i]); | |
| 1595 | |
| 1596 const octave_value *p = c.data (); | |
| 1597 | |
| 6686 | 1598 mwIndex k = 0; |
| 1599 for (mwIndex j = i; j < ntot; j += nf) | |
| 5900 | 1600 elts[j] = new mxArray (p[k++]); |
| 1601 } | |
| 1602 | |
| 1603 return retval; | |
| 1604 } | |
| 1605 | |
| 2376 | 1606 /* |
| 1607 ;;; Local Variables: *** | |
| 1608 ;;; mode: C++ *** | |
| 1609 ;;; End: *** | |
| 1610 */ |