include/isl/stream.h

   1 /*
   2  * Copyright 2008-2009 Katholieke Universiteit Leuven
   3  *
   4  * Use of this software is governed by the MIT license
   5  *
   6  * Written by Sven Verdoolaege, K.U.Leuven, Departement
   7  * Computerwetenschappen, Celestijnenlaan 200A, B-3001 Leuven, Belgium
   8  */
   9
  10 #ifndef ISL_STREAM_H
  11 #define ISL_STREAM_H
  12
  13 #include <stdio.h>
  14 #include <isl/hash.h>
  15 #include <isl/aff_type.h>
  16 #include <isl/obj.h>
  17 #include <isl/val.h>
  18
  19 #if defined(__cplusplus)
  20 extern "C" {
  21 #endif
  22
  23 enum isl_token_type { ISL_TOKEN_ERROR = -1,
  24                         ISL_TOKEN_UNKNOWN = 256, ISL_TOKEN_VALUE,
  25                         ISL_TOKEN_IDENT, ISL_TOKEN_GE,
  26                         ISL_TOKEN_LE, ISL_TOKEN_GT, ISL_TOKEN_LT,
  27                         ISL_TOKEN_NE, ISL_TOKEN_EQ_EQ,
  28                         ISL_TOKEN_LEX_GE, ISL_TOKEN_LEX_LE,
  29                         ISL_TOKEN_LEX_GT, ISL_TOKEN_LEX_LT,
  30                         ISL_TOKEN_TO, ISL_TOKEN_AND,
  31                         ISL_TOKEN_OR, ISL_TOKEN_EXISTS, ISL_TOKEN_NOT,
  32                         ISL_TOKEN_DEF, ISL_TOKEN_INFTY, ISL_TOKEN_NAN,
  33                         ISL_TOKEN_MIN, ISL_TOKEN_MAX, ISL_TOKEN_RAT,
  34                         ISL_TOKEN_TRUE, ISL_TOKEN_FALSE,
  35                         ISL_TOKEN_CEILD, ISL_TOKEN_FLOORD, ISL_TOKEN_MOD,
  36                         ISL_TOKEN_STRING,
  37                         ISL_TOKEN_MAP, ISL_TOKEN_AFF,
  38                         ISL_TOKEN_CEIL, ISL_TOKEN_FLOOR,
  39                         ISL_TOKEN_IMPLIES,
  40                         ISL_TOKEN_LAST };
  41
  42 struct isl_token;
  43
  44 __isl_give isl_val *isl_token_get_val(isl_ctx *ctx, struct isl_token *tok);
  45 __isl_give char *isl_token_get_str(isl_ctx *ctx, struct isl_token *tok);
  46 int isl_token_get_type(struct isl_token *tok);
  47 void isl_token_free(struct isl_token *tok);
  48
  49 struct isl_stream {
  50         struct isl_ctx  *ctx;
  51         FILE            *file;
  52         const char      *str;
  53         int             line;
  54         int             col;
  55         int             eof;
  56
  57         char            *buffer;
  58         size_t          size;
  59         size_t          len;
  60         int             c;
  61         int             un[5];
  62         int             n_un;
  63
  64         struct isl_token        *tokens[5];
  65         int             n_token;
  66
  67         struct isl_hash_table   *keywords;
  68         enum isl_token_type      next_type;
  69 };
  70
  71 struct isl_stream* isl_stream_new_file(struct isl_ctx *ctx, FILE *file);
  72 struct isl_stream* isl_stream_new_str(struct isl_ctx *ctx, const char *str);
  73 void isl_stream_free(struct isl_stream *s);
  74
  75 void isl_stream_error(struct isl_stream *s, struct isl_token *tok, char *msg);
  76
  77 struct isl_token *isl_stream_next_token(struct isl_stream *s);
  78 struct isl_token *isl_stream_next_token_on_same_line(struct isl_stream *s);
  79 int isl_stream_next_token_is(struct isl_stream *s, int type);
  80 void isl_stream_push_token(struct isl_stream *s, struct isl_token *tok);
  81 void isl_stream_flush_tokens(struct isl_stream *s);
  82 int isl_stream_eat_if_available(struct isl_stream *s, int type);
  83 char *isl_stream_read_ident_if_available(struct isl_stream *s);
  84 int isl_stream_eat(struct isl_stream *s, int type);
  85 int isl_stream_is_empty(struct isl_stream *s);
  86 int isl_stream_skip_line(struct isl_stream *s);
  87
  88 enum isl_token_type isl_stream_register_keyword(struct isl_stream *s,
  89         const char *name);
  90
  91 struct isl_obj isl_stream_read_obj(struct isl_stream *s);
  92 __isl_give isl_multi_aff *isl_stream_read_multi_aff(struct isl_stream *s);
  93 __isl_give isl_map *isl_stream_read_map(struct isl_stream *s);
  94 __isl_give isl_set *isl_stream_read_set(struct isl_stream *s);
  95 __isl_give isl_pw_qpolynomial *isl_stream_read_pw_qpolynomial(
  96         struct isl_stream *s);
  97 __isl_give isl_union_map *isl_stream_read_union_map(struct isl_stream *s);
  98
  99 #if defined(__cplusplus)
 100 }
 101 #endif
 102
 103 #endif