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diff --git a/src/language/data-io/data-parser.h b/src/language/data-io/data-parser.h
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+++ b/src/language/data-io/data-parser.h
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+/* PSPP - a program for statistical analysis.
+   Copyright (C) 2007 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>. */
+
+#ifndef LANGUAGE_DATA_IO_DATA_PARSER_H
+#define LANGUAGE_DATA_IO_DATA_PARSER_H
+
+/* Abstraction of a DATA LIST or GET DATA TYPE=TXT data parser. */
+
+#include <stdbool.h>
+#include <data/case.h>
+
+struct dataset;
+struct dfm_reader;
+struct dictionary;
+struct file_handle;
+struct fmt_spec;
+struct substring;
+
+/* Type of data read by a data parser. */
+enum data_parser_type
+  {
+    DP_FIXED,                   /* Fields in fixed column positions. */
+    DP_DELIMITED                /* Fields delimited by e.g. commas. */
+  };
+
+/* Creating and configuring any parser. */
+struct data_parser *data_parser_create (void);
+void data_parser_destroy (struct data_parser *);
+
+enum data_parser_type data_parser_get_type (const struct data_parser *);
+void data_parser_set_type (struct data_parser *, enum data_parser_type);
+
+void data_parser_set_skip (struct data_parser *, int initial_records_to_skip);
+void data_parser_set_case_limit (struct data_parser *, casenumber max_cases);
+void data_parser_set_case_percent (struct data_parser *, int case_percent);
+
+/* For configuring delimited parsers only. */
+bool data_parser_get_span (const struct data_parser *);
+void data_parser_set_span (struct data_parser *, bool may_cases_span_records);
+
+void data_parser_set_empty_line_has_field (struct data_parser *,
+                                           bool empty_line_has_field);
+void data_parser_set_quotes (struct data_parser *, struct substring);
+void data_parser_set_soft_delimiters (struct data_parser *, struct substring);
+void data_parser_set_hard_delimiters (struct data_parser *, struct substring);
+
+/* For configuring fixed parsers only. */
+int data_parser_get_records (const struct data_parser *);
+void data_parser_set_records (struct data_parser *, int records_per_case);
+
+/* Field setup and parsing. */
+void data_parser_add_delimited_field (struct data_parser *,
+                                      const struct fmt_spec *, int fv,
+                                      const char *name);
+void data_parser_add_fixed_field (struct data_parser *,
+                                  const struct fmt_spec *, int fv,
+                                  const char *name,
+                                  int record, int first_column);
+bool data_parser_any_fields (const struct data_parser *);
+bool data_parser_parse (struct data_parser *,
+                        struct dfm_reader *, struct ccase *);
+
+/* Uses for a configured parser. */
+void data_parser_output_description (struct data_parser *,
+                                     const struct file_handle *);
+void data_parser_make_active_file (struct data_parser *, struct dataset *,
+                                   struct dfm_reader *, struct dictionary *);
+
+#endif /* language/data-io/data-parser.h */