source/extensions/textual.c

   1
   2     /*+-----------------------------------------------------------------**
   3      **                       OpenScop Library                          **
   4      **-----------------------------------------------------------------**
   5      **                     extensions/textual.c                        **
   6      **-----------------------------------------------------------------**
   7      **                   First version: 15/17/2010                     **
   8      **-----------------------------------------------------------------**
   9
  10
  11  *****************************************************************************
  12  * OpenScop: Structures and formats for polyhedral tools to talk together    *
  13  *****************************************************************************
  14  *    ,___,,_,__,,__,,__,,__,,_,__,,_,__,,__,,___,_,__,,_,__,                *
  15  *    /   / /  //  //  //  // /   / /  //  //   / /  // /  /|,_,             *
  16  *   /   / /  //  //  //  // /   / /  //  //   / /  // /  / / /\             *
  17  *  |~~~|~|~~~|~~~|~~~|~~~|~|~~~|~|~~~|~~~|~~~|~|~~~|~|~~~|/_/  \            *
  18  *  | G |C| P | = | L | P |=| = |C| = | = | = |=| = |=| C |\  \ /\           *
  19  *  | R |l| o | = | e | l |=| = |a| = | = | = |=| = |=| L | \# \ /\          *
  20  *  | A |a| l | = | t | u |=| = |n| = | = | = |=| = |=| o | |\# \  \         *
  21  *  | P |n| l | = | s | t |=| = |d| = | = | = | |   |=| o | | \# \  \        *
  22  *  | H | | y |   | e | o | | = |l|   |   | = | |   | | G | |  \  \  \       *
  23  *  | I | |   |   | e |   | |   | |   |   |   | |   | |   | |   \  \  \      *
  24  *  | T | |   |   |   |   | |   | |   |   |   | |   | |   | |    \  \  \     *
  25  *  | E | |   |   |   |   | |   | |   |   |   | |   | |   | |     \  \  \    *
  26  *  | * |*| * | * | * | * |*| * |*| * | * | * |*| * |*| * | /      \* \  \   *
  27  *  | O |p| e | n | S | c |o| p |-| L | i | b |r| a |r| y |/        \  \ /   *
  28  *  '---'-'---'---'---'---'-'---'-'---'---'---'-'---'-'---'          '--'    *
  29  *                                                                           *
  30  * Copyright (C) 2008 University Paris-Sud 11 and INRIA                      *
  31  *                                                                           *
  32  * (3-clause BSD license)                                                    *
  33  * Redistribution and use in source  and binary forms, with or without       *
  34  * modification, are permitted provided that the following conditions        *
  35  * are met:                                                                  *
  36  *                                                                           *
  37  * 1. Redistributions of source code must retain the above copyright notice, *
  38  *    this list of conditions and the following disclaimer.                  *
  39  * 2. Redistributions in binary form must reproduce the above copyright      *
  40  *    notice, this list of conditions and the following disclaimer in the    *
  41  *    documentation and/or other materials provided with the distribution.   *
  42  * 3. The name of the author may not be used to endorse or promote products  *
  43  *    derived from this software without specific prior written permission.  *
  44  *                                                                           *
  45  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR      *
  46  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES *
  47  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.   *
  48  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,          *
  49  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT  *
  50  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, *
  51  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY     *
  52  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT       *
  53  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF  *
  54  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.         *
  55  *                                                                           *
  56  * OpenScop Library, a library to manipulate OpenScop formats and data       *
  57  * structures. Written by:                                                   *
  58  * Cedric Bastoul     <Cedric.Bastoul@u-psud.fr> and                         *
  59  * Louis-Noel Pouchet <Louis-Noel.pouchet@inria.fr>                          *
  60  *                                                                           *
  61  *****************************************************************************/
  62
  63 #include <stdlib.h>
  64 #include <stdio.h>
  65 #include <string.h>
  66
  67 #include <osl/macros.h>
  68 #include <osl/util.h>
  69 #include <osl/interface.h>
  70 #include <osl/extensions/textual.h>
  71
  72
  73 /* CAUTION : TEXTUAL IS A VERY SPECIAL CASE: DO NOT USE IT AS AN EXAMPLE !!! */
  74
  75
  76 /*+***************************************************************************
  77  *                          Structure display function                       *
  78  *****************************************************************************/
  79
  80
  81 /**
  82  * osl_textual_idump function:
  83  * this function displays an osl_textual_t structure (*textual) into a
  84  * file (file, possibly stdout) in a way that trends to be understandable. It
  85  * includes an indentation level (level) in order to work with others
  86  * idump functions.
  87  * \param[in] file    The file where the information has to be printed.
  88  * \param[in] textual The textual structure to be printed.
  89  * \param[in] level   Number of spaces before printing, for each line.
  90  */
  91 void osl_textual_idump(FILE * file, osl_textual_p textual, int level) {
  92   int j;
  93   char * tmp;
  94
  95   // Go to the right level.
  96   for (j = 0; j < level; j++)
  97     fprintf(file, "|\t");
  98
  99   if (textual != NULL) {
 100     fprintf(file, "+-- osl_textual_t: ");
 101
 102     // Display the textual message (without any carriage return).
 103     OSL_strdup(tmp, textual->textual);
 104     for (j = 0; j < (int)strlen(tmp); j++)
 105       if (tmp[j] == '\n')
 106         tmp[j] = ' ';
 107
 108     if (strlen(tmp) > 40) {
 109       for (j = 0; j < 20; j++)
 110         fprintf(file, "%c", tmp[j]);
 111       fprintf(file, "   ...   ");
 112       for (j = (int)strlen(tmp) - 20; j < (int)strlen(tmp); j++)
 113         fprintf(file, "%c", tmp[j]);
 114       fprintf(file, "\n");
 115     }
 116     else {
 117       fprintf(file,"%s\n", tmp);
 118     }
 119     free(tmp);
 120   }
 121   else {
 122     fprintf(file, "+-- NULL textual\n");
 123   }
 124
 125   // The last line.
 126   for (j = 0; j <= level; j++)
 127     fprintf(file, "|\t");
 128   fprintf(file, "\n");
 129 }
 130
 131
 132 /**
 133  * osl_textual_dump function:
 134  * this function prints the content of an osl_textual_t structure
 135  * (*textual) into a file (file, possibly stdout).
 136  * \param[in] file    The file where the information has to be printed.
 137  * \param[in] textual The textual structure to be printed.
 138  */
 139 void osl_textual_dump(FILE * file, osl_textual_p textual) {
 140   osl_textual_idump(file, textual, 0);
 141 }
 142
 143
 144
 145 #if 0
 146 /**
 147  * osl_textual_sprint function:
 148  * this function prints the content of an osl_textual_t structure
 149  * (*textual) into a string (returned) in the OpenScop textual format.
 150  * \param[in]  textual The textual structure to be printed.
 151  * \return A string containing the OpenScop dump of the textual structure.
 152  */
 153 char * osl_textual_sprint(osl_textual_p textual) {
 154   char * string = NULL;
 155
 156   if ((textual != NULL) && (textual->textual != NULL)) {
 157     if (strlen(textual->textual) > OSL_MAX_STRING)
 158       OSL_error("textual too long");
 159
 160     string = strdup(textual->textual);
 161     if (string == NULL)
 162       OSL_error("memory overflow");
 163   }
 164
 165   return string;
 166 }
 167 #else
 168 /**
 169  * osl_textual_sprint function:
 170  * this function returns NULL. This is part of the special behavior of
 171  * the textual option (printing it along with other options would double
 172  * the options...).
 173  * \param[in]  textual The textual structure to be printed.
 174  * \return NULL.
 175  */
 176 char * osl_textual_sprint(osl_textual_p textual) {
 177
 178   return NULL;
 179 }
 180 #endif
 181
 182
 183 /*****************************************************************************
 184  *                               Reading function                            *
 185  *****************************************************************************/
 186
 187
 188 /**
 189  * osl_textual_sread function:
 190  * this function reads a textual structure from a string complying to the
 191  * OpenScop textual format and returns a pointer to this textual structure.
 192  * The string should contain only one textual format of a textual structure.
 193  * \param[in,out] extensions The input string where to find a textual struct.
 194  *                           Updated to the position after what has been read.
 195  * \return A pointer to the textual structure that has been read.
 196  */
 197 osl_textual_p osl_textual_sread(char ** extensions) {
 198   osl_textual_p textual = NULL;
 199
 200   if (*extensions != NULL) {
 201     textual = osl_textual_malloc();
 202     OSL_strdup(textual->textual, *extensions);
 203
 204     // Update the input string pointer to the end of the string (since
 205     // everything has been read).
 206     *extensions = *extensions + strlen(*extensions);
 207   }
 208
 209   return textual;
 210 }
 211
 212
 213 /*+***************************************************************************
 214  *                    Memory allocation/deallocation function                *
 215  *****************************************************************************/
 216
 217
 218 /**
 219  * osl_textual_malloc function:
 220  * this function allocates the memory space for an osl_textual_t
 221  * structure and sets its fields with default values. Then it returns a
 222  * pointer to the allocated space.
 223  * \return A pointer to an empty textual structure with fields set to
 224  *         default values.
 225  */
 226 osl_textual_p osl_textual_malloc() {
 227   osl_textual_p textual;
 228
 229   OSL_malloc(textual, osl_textual_p, sizeof(osl_textual_t));
 230   textual->textual = NULL;
 231
 232   return textual;
 233 }
 234
 235
 236 /**
 237  * osl_textual_free function:
 238  * this function frees the allocated memory for an osl_textual_t
 239  * structure.
 240  * \param[in,out] textual The pointer to the textual structure to be freed.
 241  */
 242 void osl_textual_free(osl_textual_p textual) {
 243   if (textual != NULL) {
 244     if(textual->textual != NULL)
 245       free(textual->textual);
 246     free(textual);
 247   }
 248 }
 249
 250
 251 /*+***************************************************************************
 252  *                            Processing functions                           *
 253  *****************************************************************************/
 254
 255
 256 /**
 257  * osl_textual_clone function:
 258  * this function builds and returns a "hard copy" (not a pointer copy) of an
 259  * osl_textual_t data structure.
 260  * \param[in] textual The pointer to the textual structure we want to clone.
 261  * \return A pointer to the clone of the textual structure.
 262  */
 263 osl_textual_p osl_textual_clone(osl_textual_p textual) {
 264   osl_textual_p clone;
 265
 266   if (textual == NULL)
 267     return NULL;
 268
 269   clone = osl_textual_malloc();
 270   OSL_strdup(clone->textual, textual->textual);
 271
 272   return clone;
 273 }
 274
 275
 276 #if 0
 277 /**
 278  * osl_textual_equal function:
 279  * this function returns true if the two textual structures are the same
 280  * (content-wise), false otherwise.
 281  * \param f1  The first textual structure.
 282  * \param ff  The second textual structure.
 283  * \return 1 if f1 and f2 are the same (content-wise), 0 otherwise.
 284  */
 285 int osl_textual_equal(osl_textual_p f1, osl_textual_p f2) {
 286
 287   if (f1 == f2)
 288     return 1;
 289
 290   if (((f1 == NULL) && (f2 != NULL)) || ((f1 != NULL) && (f2 == NULL)))
 291     return 0;
 292
 293   if (strcmp(f1->textual, f2->textual))
 294     return 0;
 295
 296   return 1;
 297 }
 298 #else
 299 /**
 300  * osl_textual_equal function:
 301  * this function returns 1. This is part of the special behavior of
 302  * the textual option (the text string can be easily different while the
 303  * options are actually identical.
 304  * \param[in] f1  The first textual structure.
 305  * \param[in] f2  The second textual structure.
 306  * \return 1.
 307  */
 308 int osl_textual_equal(osl_textual_p f1, osl_textual_p f2) {
 309
 310   return 1;
 311 }
 312 #endif
 313
 314
 315 /**
 316  * osl_textual_interface function:
 317  * this function creates an interface structure corresponding to the textual
 318  * extension and returns it).
 319  * \return An interface structure for the textual extension.
 320  */
 321 osl_interface_p osl_textual_interface() {
 322   osl_interface_p interface = osl_interface_malloc();
 323
 324   OSL_strdup(interface->URI, OSL_URI_TEXTUAL);
 325   interface->idump  = (osl_idump_f)osl_textual_idump;
 326   interface->sprint = (osl_sprint_f)osl_textual_sprint;
 327   interface->sread  = (osl_sread_f)osl_textual_sread;
 328   interface->malloc = (osl_malloc_f)osl_textual_malloc;
 329   interface->free   = (osl_free_f)osl_textual_free;
 330   interface->clone  = (osl_clone_f)osl_textual_clone;
 331   interface->equal  = (osl_equal_f)osl_textual_equal;
 332
 333   return interface;
 334 }
 335