X-Git-Url: https://git.distorted.org.uk/~mdw/anag/blobdiff_plain/2668675ca09a97897b3a1ea88bc5101e5cfe40a1..fe9969ffd7c155edc44c871c4abcf6f5ab208519:/anag.c

diff --git a/anag.c b/anag.c
index 724873d..56aa565 100644
--- a/anag.c
+++ b/anag.c
@@ -1,6 +1,6 @@
 /* -*-c-*-
  *
- * $Id: anag.c,v 1.3 2001/02/16 21:45:19 mdw Exp $
+ * $Id: anag.c,v 1.6 2003/09/15 02:48:54 mdw Exp $
  *
  * Main driver for anag
  *
@@ -29,6 +29,16 @@
 /*----- Revision history --------------------------------------------------* 
  *
  * $Log: anag.c,v $
+ * Revision 1.6  2003/09/15 02:48:54  mdw
+ * Monoalphabetic match filter.
+ *
+ * Revision 1.5  2002/08/11 12:58:09  mdw
+ * Added support for regular expression matching, if supported by the C
+ * library.
+ *
+ * Revision 1.4  2001/02/19 19:18:50  mdw
+ * Minor big fixes to parser.
+ *
  * Revision 1.3  2001/02/16 21:45:19  mdw
  * Be more helpful.  Improve full help message.  Special-case error for
  * empty command strings.
@@ -82,6 +92,14 @@ The basic tests in the expression are:\n\
 -subgram WORD		matches words which only use letters in WORD\n\
 -wildcard PATTERN	matches with wildcards `*' and `?'\n\
 -trackword WORD		matches words which can be found in a trackword\n\
+-mono PATTERN		matches words isomorphic to the given PATTERN\n\
+"
+#ifdef HAVE_REGCOMP
+"\
+-regexp REGEXP		matches with an (extended) regular expression\n\
+"
+#endif
+"\
 \n\
 These simple tests can be combined using the operators `-a', `-o' and `-n'\n\
 (for `and', `or' and `not'; they may also be written `&', `|' and `!' if\n\
@@ -104,7 +122,7 @@ enum {
   O_HELP, O_VERSION, O_USAGE,
   O_FILE,
   O_AND, O_OR, O_NOT, O_LPAREN, O_RPAREN,
-  O_ANAG, O_SUBG, O_WILD, O_TRACK,
+  O_ANAG, O_SUBG, O_WILD, O_TRACK, O_REGEXP, O_MONO,
   O_EOF
 };
 
@@ -134,6 +152,10 @@ static const struct opt opttab[] = {
   { "subgram",		1,	0,		O_SUBG },
   { "wildcard",		1,	0,		O_WILD },
   { "trackword",	1,	0,		O_TRACK },
+  { "mono",		1,	0,		O_MONO },
+#ifdef HAVE_REGCOMP
+  { "regexp",		1,	0,		O_REGEXP },
+#endif
 
   /* --- End marker --- */
 
@@ -320,7 +342,7 @@ static void p_factor(p_ctx *p, node **nn)
     p_next(p);
     p_expr(p, nn);
     if (p->t != O_RPAREN)
-      die("syntax error near `%s': missing `('", *p->a);
+      die("syntax error near `%s': missing `)'", *p->a);
     p_next(p);
   } else if (p->t == O_NOT) {
     n = xmalloc(sizeof(node_un));
@@ -334,6 +356,10 @@ static void p_factor(p_ctx *p, node **nn)
       case O_SUBG: *nn = subgram(p->a + 1); break;
       case O_WILD: *nn = wildcard(p->a + 1); break;
       case O_TRACK: *nn = trackword(p->a + 1); break;
+#ifdef HAVE_REGCOMP
+      case O_REGEXP: *nn = regexp(p->a + 1); break;
+#endif
+      case O_MONO: *nn = mono(p->a + 1); break;
       default: die("syntax error near `%s': unexpected token", *p->a);
     }
     p_next(p);
@@ -350,7 +376,6 @@ static void p_term(p_ctx *p, node **nn)
 	p_next(p);
       default:
 	break;
-      case O_LPAREN:
       case O_RPAREN:
       case O_OR:
       case O_EOF: