Standard curves and curve checking.

[u/mdw/catacomb] / qdparse.h

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+/* -*-c-*-
+ *
+ * $Id: qdparse.h,v 1.1 2004/03/27 17:54:12 mdw Exp $
+ *
+ * Quick-and-dirty parser
+ *
+ * (c) 2004 Straylight/Edgeware
+ */
+
+/*----- Licensing notice --------------------------------------------------* 
+ *
+ * This file is part of Catacomb.
+ *
+ * Catacomb is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Library General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ * 
+ * Catacomb 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 Library General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Library General Public
+ * License along with Catacomb; if not, write to the Free
+ * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+ * MA 02111-1307, USA.
+ */
+
+/*----- Revision history --------------------------------------------------* 
+ *
+ * $Log: qdparse.h,v $
+ * Revision 1.1  2004/03/27 17:54:12  mdw
+ * Standard curves and curve checking.
+ *
+ */
+
+#ifndef CATACOMB_QDPARSE_H
+#define CATACOMB_QDPARSE_H
+
+#ifdef __cplusplus
+  extern "C" {
+#endif
+
+/*----- Header files ------------------------------------------------------*/
+
+#ifndef CATACOMB_MP_H
+#  include "mp.h"
+#endif
+
+/*----- Data structures ---------------------------------------------------*/
+
+typedef struct qd_parse {
+  const char *p;                       /* Where we are right now */
+  const char *e;                       /* Error string (output) */
+} qd_parse;
+
+/*----- Functions provided ------------------------------------------------*/
+
+/* --- @qd_skipspc@ --- *
+ *
+ * Arguments:  @qd_parse *qd@ = context
+ *
+ * Returns:    ---
+ *
+ * Use:                Skips spaces in the string.  No errors.
+ */
+
+extern void qd_skipspc(qd_parse */*qd*/);
+
+/* --- @qd_delim@ --- *
+ *
+ * Arguments:  @qd_parse *qd@ = context
+ *             @int ch@ = character to compare with
+ *
+ * Returns:    Nonzero if it was, zero if it wasn't.
+ *
+ * Use:                Checks the next (non-whitespace) character is what we
+ *             expect.  If it is, the character is eaten; otherwise it's no
+ *             big deal.
+ */
+
+extern int qd_delim(qd_parse */*qd*/, int /*ch*/);
+
+/* --- @qd_enum@ --- *
+ *
+ * Arguments:  @qd_parse *qd@ = context
+ *             @const char *e@ = list of enum strings, space separated
+ *
+ * Returns:    Index of the string matched, or @-1@.
+ *
+ * Use:                Matches a keyword.
+ */
+
+extern int qd_enum(qd_parse */*qd*/, const char */*e*/);
+
+/* --- @qd_getmp@ --- *
+ *
+ * Arguments:  @qd_parse *qd@ = context
+ *
+ * Returns:    The integer extracted, or null.
+ *
+ * Use:                Parses a multiprecision integer from a string.
+ */
+
+extern mp *qd_getmp(qd_parse */*qd*/);
+
+/* --- @qd_eofp@ --- *
+ *
+ * Arguments:  @qd_parse *qd@ = context
+ *
+ * Returns:    Nonzero if at EOF, zero otherwise.
+ */
+
+extern int qd_eofp(qd_parse */*qd*/);
+
+/*----- That's all, folks -------------------------------------------------*/
+
+#ifdef __cplusplus
+  }
+#endif
+
+#endif