isl_printer.c

   1 #include <string.h>
   2 #include <isl_printer_private.h>
   3
   4 static __isl_give isl_printer *file_start_line(__isl_take isl_printer *p)
   5 {
   6         fprintf(p->file, "%*s%s", p->indent, "", p->prefix ? p->prefix : "");
   7         return p;
   8 }
   9
  10 static __isl_give isl_printer *file_end_line(__isl_take isl_printer *p)
  11 {
  12         fprintf(p->file, "%s\n", p->suffix ? p->suffix : "");
  13         return p;
  14 }
  15
  16 static __isl_give isl_printer *file_flush(__isl_take isl_printer *p)
  17 {
  18         fflush(p->file);
  19         return p;
  20 }
  21
  22 static __isl_give isl_printer *file_print_str(__isl_take isl_printer *p,
  23         const char *s)
  24 {
  25         fprintf(p->file, "%s", s);
  26         return p;
  27 }
  28
  29 static __isl_give isl_printer *file_print_int(__isl_take isl_printer *p, int i)
  30 {
  31         fprintf(p->file, "%d", i);
  32         return p;
  33 }
  34
  35 static __isl_give isl_printer *file_print_isl_int(__isl_take isl_printer *p, isl_int i)
  36 {
  37         isl_int_print(p->file, i, p->width);
  38         return p;
  39 }
  40
  41 static int grow_buf(__isl_keep isl_printer *p, int extra)
  42 {
  43         int new_size;
  44         char *new_buf;
  45
  46         if (p->buf_size == 0)
  47                 return -1;
  48
  49         new_size = ((p->buf_n + extra + 1) * 3) / 2;
  50         new_buf = isl_realloc_array(p->ctx, p->buf, char, new_size);
  51         if (!new_buf) {
  52                 p->buf_size = 0;
  53                 return -1;
  54         }
  55         p->buf = new_buf;
  56         p->buf_size = new_size;
  57
  58         return 0;
  59 }
  60
  61 static __isl_give isl_printer *str_print(__isl_take isl_printer *p,
  62         const char *s, int len)
  63 {
  64         if (p->buf_n + len + 1 >= p->buf_size && grow_buf(p, len))
  65                 goto error;
  66         memcpy(p->buf + p->buf_n, s, len);
  67         p->buf_n += len;
  68
  69         p->buf[p->buf_n] = '\0';
  70         return p;
  71 error:
  72         isl_printer_free(p);
  73         return NULL;
  74 }
  75
  76 static __isl_give isl_printer *str_print_indent(__isl_take isl_printer *p,
  77         int indent)
  78 {
  79         int i;
  80
  81         if (p->buf_n + indent + 1 >= p->buf_size && grow_buf(p, indent))
  82                 goto error;
  83         for (i = 0; i < indent; ++i)
  84                 p->buf[p->buf_n++] = ' ';
  85         return p;
  86 error:
  87         isl_printer_free(p);
  88         return NULL;
  89 }
  90
  91 static __isl_give isl_printer *str_start_line(__isl_take isl_printer *p)
  92 {
  93         p = str_print_indent(p, p->indent);
  94         if (p->prefix)
  95                 p = str_print(p, p->prefix, strlen(p->prefix));
  96         return p;
  97 }
  98
  99 static __isl_give isl_printer *str_end_line(__isl_take isl_printer *p)
 100 {
 101         if (p->suffix)
 102                 p = str_print(p, p->suffix, strlen(p->suffix));
 103         p = str_print(p, "\n", strlen("\n"));
 104         return p;
 105 }
 106
 107 static __isl_give isl_printer *str_flush(__isl_take isl_printer *p)
 108 {
 109         p->buf_n = 0;
 110         return p;
 111 }
 112
 113 static __isl_give isl_printer *str_print_str(__isl_take isl_printer *p,
 114         const char *s)
 115 {
 116         return str_print(p, s, strlen(s));
 117 }
 118
 119 static __isl_give isl_printer *str_print_int(__isl_take isl_printer *p, int i)
 120 {
 121         int left = p->buf_size - p->buf_n;
 122         int need = snprintf(p->buf + p->buf_n, left, "%d", i);
 123         if (need >= left) {
 124                 if (grow_buf(p, need))
 125                         goto error;
 126                 left = p->buf_size - p->buf_n;
 127                 need = snprintf(p->buf + p->buf_n, left, "%d", i);
 128         }
 129         p->buf_n += need;
 130         return p;
 131 error:
 132         isl_printer_free(p);
 133         return NULL;
 134 }
 135
 136 static __isl_give isl_printer *str_print_isl_int(__isl_take isl_printer *p,
 137         isl_int i)
 138 {
 139         char *s;
 140         int len;
 141         isl_int_print_gmp_free_t gmp_free;
 142
 143         s = isl_int_get_str(i);
 144         len = strlen(s);
 145         if (len < p->width)
 146                 p = str_print_indent(p, p->width - len);
 147         p = str_print(p, s, len);
 148         mp_get_memory_functions(NULL, NULL, &gmp_free);
 149         (*gmp_free)(s, len + 1);
 150         return p;
 151 }
 152
 153 struct isl_printer_ops {
 154         __isl_give isl_printer *(*start_line)(__isl_take isl_printer *p);
 155         __isl_give isl_printer *(*end_line)(__isl_take isl_printer *p);
 156         __isl_give isl_printer *(*print_int)(__isl_take isl_printer *p, int i);
 157         __isl_give isl_printer *(*print_isl_int)(__isl_take isl_printer *p,
 158                                                 isl_int i);
 159         __isl_give isl_printer *(*print_str)(__isl_take isl_printer *p,
 160                                                 const char *s);
 161         __isl_give isl_printer *(*flush)(__isl_take isl_printer *p);
 162 };
 163
 164 static struct isl_printer_ops file_ops = {
 165         file_start_line,
 166         file_end_line,
 167         file_print_int,
 168         file_print_isl_int,
 169         file_print_str,
 170         file_flush
 171 };
 172
 173 static struct isl_printer_ops str_ops = {
 174         str_start_line,
 175         str_end_line,
 176         str_print_int,
 177         str_print_isl_int,
 178         str_print_str,
 179         str_flush
 180 };
 181
 182 __isl_give isl_printer *isl_printer_to_file(isl_ctx *ctx, FILE *file)
 183 {
 184         struct isl_printer *p = isl_alloc_type(ctx, struct isl_printer);
 185         if (!p)
 186                 return NULL;
 187         p->ctx = ctx;
 188         isl_ctx_ref(p->ctx);
 189         p->ops = &file_ops;
 190         p->file = file;
 191         p->buf = NULL;
 192         p->buf_n = 0;
 193         p->buf_size = 0;
 194         p->indent = 0;
 195         p->output_format = ISL_FORMAT_ISL;
 196         p->prefix = NULL;
 197         p->suffix = NULL;
 198         p->width = 0;
 199
 200         return p;
 201 }
 202
 203 __isl_give isl_printer *isl_printer_to_str(isl_ctx *ctx)
 204 {
 205         struct isl_printer *p = isl_alloc_type(ctx, struct isl_printer);
 206         if (!p)
 207                 return NULL;
 208         p->ctx = ctx;
 209         isl_ctx_ref(p->ctx);
 210         p->ops = &str_ops;
 211         p->file = NULL;
 212         p->buf = isl_alloc_array(ctx, char, 256);
 213         if (!p->buf)
 214                 goto error;
 215         p->buf_n = 0;
 216         p->buf_size = 256;
 217         p->indent = 0;
 218         p->output_format = ISL_FORMAT_ISL;
 219         p->prefix = NULL;
 220         p->suffix = NULL;
 221         p->width = 0;
 222
 223         return p;
 224 error:
 225         isl_printer_free(p);
 226         return NULL;
 227 }
 228
 229 void isl_printer_free(__isl_take isl_printer *p)
 230 {
 231         if (!p)
 232                 return;
 233         free(p->buf);
 234         isl_ctx_deref(p->ctx);
 235         free(p);
 236 }
 237
 238 __isl_give isl_printer *isl_printer_set_isl_int_width(__isl_take isl_printer *p,
 239         int width)
 240 {
 241         if (!p)
 242                 return NULL;
 243
 244         p->width = width;
 245
 246         return p;
 247 }
 248
 249 __isl_give isl_printer *isl_printer_set_indent(__isl_take isl_printer *p,
 250         int indent)
 251 {
 252         if (!p)
 253                 return NULL;
 254
 255         p->indent = indent;
 256
 257         return p;
 258 }
 259
 260 __isl_give isl_printer *isl_printer_indent(__isl_take isl_printer *p,
 261         int indent)
 262 {
 263         if (!p)
 264                 return NULL;
 265
 266         p->indent += indent;
 267         if (p->indent < 0)
 268                 p->indent = 0;
 269
 270         return p;
 271 }
 272
 273 __isl_give isl_printer *isl_printer_set_prefix(__isl_take isl_printer *p,
 274         const char *prefix)
 275 {
 276         if (!p)
 277                 return NULL;
 278
 279         p->prefix = prefix;
 280
 281         return p;
 282 }
 283
 284 __isl_give isl_printer *isl_printer_set_suffix(__isl_take isl_printer *p,
 285         const char *suffix)
 286 {
 287         if (!p)
 288                 return NULL;
 289
 290         p->suffix = suffix;
 291
 292         return p;
 293 }
 294
 295 __isl_give isl_printer *isl_printer_set_output_format(__isl_take isl_printer *p,
 296         int output_format)
 297 {
 298         if (!p)
 299                 return NULL;
 300
 301         p->output_format = output_format;
 302
 303         return p;
 304 }
 305
 306 __isl_give isl_printer *isl_printer_print_str(__isl_take isl_printer *p,
 307         const char *s)
 308 {
 309         if (!p)
 310                 return NULL;
 311
 312         return p->ops->print_str(p, s);
 313 }
 314
 315 __isl_give isl_printer *isl_printer_print_int(__isl_take isl_printer *p, int i)
 316 {
 317         if (!p)
 318                 return NULL;
 319
 320         return p->ops->print_int(p, i);
 321 }
 322
 323 __isl_give isl_printer *isl_printer_print_isl_int(__isl_take isl_printer *p,
 324         isl_int i)
 325 {
 326         if (!p)
 327                 return NULL;
 328
 329         return p->ops->print_isl_int(p, i);
 330 }
 331
 332 __isl_give isl_printer *isl_printer_start_line(__isl_take isl_printer *p)
 333 {
 334         if (!p)
 335                 return NULL;
 336
 337         return p->ops->start_line(p);
 338 }
 339
 340 __isl_give isl_printer *isl_printer_end_line(__isl_take isl_printer *p)
 341 {
 342         if (!p)
 343                 return NULL;
 344
 345         return p->ops->end_line(p);
 346 }
 347
 348 char *isl_printer_get_str(__isl_keep isl_printer *printer)
 349 {
 350         if (!printer || !printer->buf)
 351                 return NULL;
 352         return strdup(printer->buf);
 353 }
 354
 355 __isl_give isl_printer *isl_printer_flush(__isl_take isl_printer *p)
 356 {
 357         if (!p)
 358                 return NULL;
 359
 360         return p->ops->flush(p);
 361 }