+static enum isl_token_type check_keywords(struct isl_stream *s)
+{
+ struct isl_hash_table_entry *entry;
+ struct isl_keyword *keyword;
+ uint32_t name_hash;
+
+ if (!strcasecmp(s->buffer, "exists"))
+ return ISL_TOKEN_EXISTS;
+ if (!strcasecmp(s->buffer, "and"))
+ return ISL_TOKEN_AND;
+ if (!strcasecmp(s->buffer, "or"))
+ return ISL_TOKEN_OR;
+ if (!strcasecmp(s->buffer, "not"))
+ return ISL_TOKEN_NOT;
+ if (!strcasecmp(s->buffer, "infty"))
+ return ISL_TOKEN_INFTY;
+ if (!strcasecmp(s->buffer, "infinity"))
+ return ISL_TOKEN_INFTY;
+ if (!strcasecmp(s->buffer, "NaN"))
+ return ISL_TOKEN_NAN;
+ if (!strcasecmp(s->buffer, "min"))
+ return ISL_TOKEN_MIN;
+ if (!strcasecmp(s->buffer, "max"))
+ return ISL_TOKEN_MAX;
+ if (!strcasecmp(s->buffer, "rat"))
+ return ISL_TOKEN_RAT;
+ if (!strcasecmp(s->buffer, "true"))
+ return ISL_TOKEN_TRUE;
+ if (!strcasecmp(s->buffer, "false"))
+ return ISL_TOKEN_FALSE;
+ if (!strcasecmp(s->buffer, "ceild"))
+ return ISL_TOKEN_CEILD;
+ if (!strcasecmp(s->buffer, "floord"))
+ return ISL_TOKEN_FLOORD;
+ if (!strcasecmp(s->buffer, "mod"))
+ return ISL_TOKEN_MOD;
+
+ if (!s->keywords)
+ return ISL_TOKEN_IDENT;
+
+ name_hash = isl_hash_string(isl_hash_init(), s->buffer);
+ entry = isl_hash_table_find(s->ctx, s->keywords, name_hash, same_name,
+ s->buffer, 0);
+ if (entry) {
+ keyword = entry->data;
+ return keyword->type;
+ }
+
+ return ISL_TOKEN_IDENT;
+}
+
+int isl_stream_skip_line(struct isl_stream *s)
+{
+ int c;
+
+ while ((c = isl_stream_getc(s)) != -1 && c != '\n')
+ /* nothing */
+ ;
+
+ return c == -1 ? -1 : 0;
+}
+