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