X-Git-Url: http://winboard.nl/cgi-bin?p=polyglot.git;a=blobdiff_plain;f=pgheader.h;fp=pgheader.h;h=676c0ad4cb2d8a541957e5fbe38c05f168915c7e;hp=0000000000000000000000000000000000000000;hb=5904a294b3b33dfd3ca11e4e48133151787f0d8f;hpb=e7101a7ac6f532dfa92c574ff42ce8d1ae737396

diff --git a/pgheader.h b/pgheader.h
new file mode 100644
index 0000000..676c0ad
--- /dev/null
+++ b/pgheader.h
@@ -0,0 +1,47 @@
+#ifndef PGHEADER_H
+#define PGHEADER_H
+
+#define PGHEADER_NO_ERROR 0
+#define PGHEADER_OS_ERROR 1
+#define PGHEADER_BAD_FORMAT 2
+#define PGHEADER_NO_HEADER 3
+#define PGHEADER_NAME_COLLISION 4
+#define PGHEADER_BAD_PARAMETER 5
+#define PGHEADER_BAD_HEADER 6
+
+
+const char * pgheader_version;
+const char * pgheader_magic;
+
+/* This does some heuristic tests to make it reasonably sure we are dealing
+   with a Polyglot book.
+*/
+int pgheader_detect(const char *infile);
+
+/* "variants" is a linefeed separated list of supported variants.
+   "comments" is a free format string which may contain linefeeds.
+   "header" must be freed if the function returns without error.
+*/
+int pgheader_create(char **header, const char *variants, const char *comment);
+
+/* "variants" and "comment" must be freed if the function returns 
+   without error.
+*/
+int pgheader_parse(const char *header, char **variants, char **comment);
+
+/*  "raw_header" is a byte array ready for prepending to a book file.
+    It must be freed after use.
+ */
+int pgheader_create_raw(char **raw_header, const char *header, unsigned int *size);
+
+/* "header" must be freed if the function returns without error.
+*/
+int pgheader_read(char **header, const char *infile);
+
+int pgheader_write(const char *header, const char *infile, const char *outfile);
+int pgheader_delete(const char *infile, const char *outfile);
+
+void pgheader_error(const char *prompt, int ret);
+
+#endif
+