mxml-set.c 8.11 KB
Newer Older
1
/*
Michael Sweet's avatar
Michael Sweet committed
2
 * Node set functions for Mini-XML, a small XML file parsing library.
3
 *
4
 * Copyright 2003-2018 by Michael R Sweet.
5
 *
6 7 8 9 10
 * These coded instructions, statements, and computer programs are the
 * property of Michael R Sweet and are protected by Federal copyright
 * law.  Distribution and use rights are outlined in the file "COPYING"
 * which should have been included with this file.  If this file is
 * missing or damaged, see the license at:
11
 *
Michael Sweet's avatar
Michael Sweet committed
12
 *     https://michaelrsweet.github.io/mxml
13 14 15 16 17 18 19 20 21 22
 */

/*
 * Include necessary headers...
 */

#include "config.h"
#include "mxml.h"


23
/*
24
 * 'mxmlSetCDATA()' - Set the element name of a CDATA node.
25
 *
26
 * The node is not changed if it (or its first child) is not a CDATA element node.
Michael R Sweet's avatar
Michael R Sweet committed
27
 *
28
 * @since Mini-XML 2.3@
29 30 31
 */

int					/* O - 0 on success, -1 on failure */
32 33
mxmlSetCDATA(mxml_node_t *node,		/* I - Node to set */
             const char  *data)		/* I - New data string */
34 35 36 37 38
{
 /*
  * Range check input...
  */

39 40 41 42 43 44
  if (node && node->type == MXML_ELEMENT &&
      strncmp(node->value.element.name, "![CDATA[", 8) &&
      node->child && node->child->type == MXML_ELEMENT &&
      !strncmp(node->child->value.element.name, "![CDATA[", 8))
    node = node->child;

45 46
  if (!node || node->type != MXML_ELEMENT || !data ||
      strncmp(node->value.element.name, "![CDATA[", 8))
47 48 49 50 51 52
    return (-1);

 /*
  * Free any old element value and set the new value...
  */

53 54
  if (node->value.element.name)
    free(node->value.element.name);
55

56
  node->value.element.name = _mxml_strdupf("![CDATA[%s", data);
57 58 59 60 61

  return (0);
}


62
/*
63
 * 'mxmlSetCustom()' - Set the data and destructor of a custom data node.
64
 *
65
 * The node is not changed if it (or its first child) is not a custom node.
Michael R Sweet's avatar
Michael R Sweet committed
66
 *
67
 * @since Mini-XML 2.1@
68 69 70
 */

int					/* O - 0 on success, -1 on failure */
71 72 73 74
mxmlSetCustom(
    mxml_node_t              *node,	/* I - Node to set */
    void                     *data,	/* I - New data pointer */
    mxml_custom_destroy_cb_t destroy)	/* I - New destructor function */
75 76 77 78 79
{
 /*
  * Range check input...
  */

80 81 82 83
  if (node && node->type == MXML_ELEMENT &&
      node->child && node->child->type == MXML_CUSTOM)
    node = node->child;

84
  if (!node || node->type != MXML_CUSTOM)
85 86 87 88 89 90
    return (-1);

 /*
  * Free any old element value and set the new value...
  */

91 92
  if (node->value.custom.data && node->value.custom.destroy)
    (*(node->value.custom.destroy))(node->value.custom.data);
93

94 95
  node->value.custom.data    = data;
  node->value.custom.destroy = destroy;
96 97 98 99 100

  return (0);
}


101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133
/*
 * 'mxmlSetElement()' - Set the name of an element node.
 *
 * The node is not changed if it is not an element node.
 */

int					/* O - 0 on success, -1 on failure */
mxmlSetElement(mxml_node_t *node,	/* I - Node to set */
               const char  *name)	/* I - New name string */
{
 /*
  * Range check input...
  */

  if (!node || node->type != MXML_ELEMENT || !name)
    return (-1);

 /*
  * Free any old element value and set the new value...
  */

  if (node->value.element.name)
    free(node->value.element.name);

  node->value.element.name = strdup(name);

  return (0);
}


/*
 * 'mxmlSetInteger()' - Set the value of an integer node.
 *
134
 * The node is not changed if it (or its first child) is not an integer node.
135 136 137 138 139 140 141 142 143 144
 */

int					/* O - 0 on success, -1 on failure */
mxmlSetInteger(mxml_node_t *node,	/* I - Node to set */
               int         integer)	/* I - Integer value */
{
 /*
  * Range check input...
  */

145 146 147 148
  if (node && node->type == MXML_ELEMENT &&
      node->child && node->child->type == MXML_INTEGER)
    node = node->child;

149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164
  if (!node || node->type != MXML_INTEGER)
    return (-1);

 /*
  * Set the new value and return...
  */

  node->value.integer = integer;

  return (0);
}


/*
 * 'mxmlSetOpaque()' - Set the value of an opaque node.
 *
165
 * The node is not changed if it (or its first child) is not an opaque node.
166 167 168 169 170 171 172 173 174 175
 */

int					/* O - 0 on success, -1 on failure */
mxmlSetOpaque(mxml_node_t *node,	/* I - Node to set */
              const char  *opaque)	/* I - Opaque string */
{
 /*
  * Range check input...
  */

176 177 178 179
  if (node && node->type == MXML_ELEMENT &&
      node->child && node->child->type == MXML_OPAQUE)
    node = node->child;

180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195
  if (!node || node->type != MXML_OPAQUE || !opaque)
    return (-1);

 /*
  * Free any old opaque value and set the new value...
  */

  if (node->value.opaque)
    free(node->value.opaque);

  node->value.opaque = strdup(opaque);

  return (0);
}


196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239
/*
 * 'mxmlSetOpaquef()' - Set the value of an opaque string node to a formatted string.
 *
 * The node is not changed if it (or its first child) is not an opaque node.
 *
 * @since Mini-XML 2.11@
 */

int					/* O - 0 on success, -1 on failure */
mxmlSetOpaquef(mxml_node_t *node,	/* I - Node to set */
               const char  *format,	/* I - Printf-style format string */
	       ...)			/* I - Additional arguments as needed */
{
  va_list	ap;			/* Pointer to arguments */


 /*
  * Range check input...
  */

  if (node && node->type == MXML_ELEMENT &&
      node->child && node->child->type == MXML_OPAQUE)
    node = node->child;

  if (!node || node->type != MXML_OPAQUE || !format)
    return (-1);

 /*
  * Free any old string value and set the new value...
  */

  if (node->value.opaque)
    free(node->value.opaque);

  va_start(ap, format);

  node->value.opaque = _mxml_strdupf(format, ap);

  va_end(ap);

  return (0);
}


240 241 242
/*
 * 'mxmlSetReal()' - Set the value of a real number node.
 *
243
 * The node is not changed if it (or its first child) is not a real number node.
244 245 246 247 248 249 250 251 252 253
 */

int					/* O - 0 on success, -1 on failure */
mxmlSetReal(mxml_node_t *node,		/* I - Node to set */
            double      real)		/* I - Real number value */
{
 /*
  * Range check input...
  */

254 255 256 257
  if (node && node->type == MXML_ELEMENT &&
      node->child && node->child->type == MXML_REAL)
    node = node->child;

258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273
  if (!node || node->type != MXML_REAL)
    return (-1);

 /*
  * Set the new value and return...
  */

  node->value.real = real;

  return (0);
}


/*
 * 'mxmlSetText()' - Set the value of a text node.
 *
274
 * The node is not changed if it (or its first child) is not a text node.
275 276 277 278 279 280 281 282 283 284 285
 */

int					/* O - 0 on success, -1 on failure */
mxmlSetText(mxml_node_t *node,		/* I - Node to set */
            int         whitespace,	/* I - 1 = leading whitespace, 0 = no whitespace */
	    const char  *string)	/* I - String */
{
 /*
  * Range check input...
  */

286 287 288 289
  if (node && node->type == MXML_ELEMENT &&
      node->child && node->child->type == MXML_TEXT)
    node = node->child;

290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309
  if (!node || node->type != MXML_TEXT || !string)
    return (-1);

 /*
  * Free any old string value and set the new value...
  */

  if (node->value.text.string)
    free(node->value.text.string);

  node->value.text.whitespace = whitespace;
  node->value.text.string     = strdup(string);

  return (0);
}


/*
 * 'mxmlSetTextf()' - Set the value of a text node to a formatted string.
 *
310
 * The node is not changed if it (or its first child) is not a text node.
311 312 313 314 315 316 317 318 319 320 321 322 323 324 325
 */

int					/* O - 0 on success, -1 on failure */
mxmlSetTextf(mxml_node_t *node,		/* I - Node to set */
             int         whitespace,	/* I - 1 = leading whitespace, 0 = no whitespace */
             const char  *format,	/* I - Printf-style format string */
	     ...)			/* I - Additional arguments as needed */
{
  va_list	ap;			/* Pointer to arguments */


 /*
  * Range check input...
  */

326 327 328 329
  if (node && node->type == MXML_ELEMENT &&
      node->child && node->child->type == MXML_TEXT)
    node = node->child;

330 331 332 333 334 335 336 337 338 339 340 341 342
  if (!node || node->type != MXML_TEXT || !format)
    return (-1);

 /*
  * Free any old string value and set the new value...
  */

  if (node->value.text.string)
    free(node->value.text.string);

  va_start(ap, format);

  node->value.text.whitespace = whitespace;
Michael R Sweet's avatar
Michael R Sweet committed
343
  node->value.text.string     = _mxml_strdupf(format, ap);
344 345 346 347 348 349 350

  va_end(ap);

  return (0);
}


351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374
/*
 * 'mxmlSetUserData()' - Set the user data pointer for a node.
 *
 * @since Mini-XML 2.7@
 */

int					/* O - 0 on success, -1 on failure */
mxmlSetUserData(mxml_node_t *node,	/* I - Node to set */
                void        *data)	/* I - User data pointer */
{
 /*
  * Range check input...
  */

  if (!node)
    return (-1);

 /*
  * Set the user data pointer and return...
  */

  node->user_data = data;
  return (0);
}