LICENSE.

[egate.git] / fml / fmltoken.c

diff --git a/fml/fmltoken.c b/fml/fmltoken.c
index 3e7793a..d595fd0 100644 (file)
--- a/fml/fmltoken.c
+++ b/fml/fmltoken.c
@@ -1,9 +1,73 @@
 /*
+ * Copyright (c) 1995, the EUROPAGATE consortium (see below).
+ *
+ * The EUROPAGATE consortium members are:
+ *
+ *    University College Dublin
+ *    Danmarks Teknologiske Videnscenter
+ *    An Chomhairle Leabharlanna
+ *    Consejo Superior de Investigaciones Cientificas
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and
+ * its documentation, in whole or in part, for any purpose, is hereby granted,
+ * provided that:
+ *
+ * 1. This copyright and permission notice appear in all copies of the
+ * software and its documentation. Notices of copyright or attribution
+ * which appear at the beginning of any file must remain unchanged.
+ *
+ * 2. The names of EUROPAGATE or the project partners may not be used to
+ * endorse or promote products derived from this software without specific
+ * prior written permission.
+ *
+ * 3. Users of this software (implementors and gateway operators) agree to
+ * inform the EUROPAGATE consortium of their use of the software. This
+ * information will be used to evaluate the EUROPAGATE project and the
+ * software, and to plan further developments. The consortium may use
+ * the information in later publications.
+ * 
+ * 4. Users of this software agree to make their best efforts, when
+ * documenting their use of the software, to acknowledge the EUROPAGATE
+ * consortium, and the role played by the software in their work.
+ *
+ * THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS, IMPLIED, OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
+ * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
+ * IN NO EVENT SHALL THE EUROPAGATE CONSORTIUM OR ITS MEMBERS BE LIABLE
+ * FOR ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF
+ * ANY KIND, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA
+ * OR PROFITS, WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND
+ * ON ANY THEORY OF LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE
+ * USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ */
+/*
  * FML interpreter. Europagate, 1995
  *
  * $Log: fmltoken.c,v $
- * Revision 1.1  1995/02/06 13:48:09  adam
- * Initial revision
+ * Revision 1.7  1995/05/16 09:39:35  adam
+ * LICENSE.
+ *
+ * Revision 1.6  1995/02/23  08:32:07  adam
+ * Changed header.
+ *
+ * Revision 1.4  1995/02/10  18:15:53  adam
+ * FML function 'strcmp' implemented. This function can be used to
+ * test for existence of MARC fields.
+ *
+ * Revision 1.3  1995/02/10  15:50:57  adam
+ * MARC interface implemented. Minor bugs fixed. fmltest can
+ * be used to format single MARC records. New function '\list'
+ * implemented.
+ *
+ * Revision 1.2  1995/02/07  16:09:24  adam
+ * The \ character is no longer INCLUDED when terminating a token.
+ * Major changes in tokenization routines. Bug fixes in expressions
+ * with lists (fml_sub0).
+ *
+ * Revision 1.1.1.1  1995/02/06  13:48:10  adam
+ * First version of the FML interpreter. It's slow and memory isn't
+ * freed properly. In particular, the FML nodes aren't released yet.
  *
  */
 #include <string.h>
@@ -31,6 +95,11 @@ struct fml_node *fml_tokenize (Fml fml)
         fml_pr_list (p);
         printf ("\n");
     }
+    if (look_char != fml->eof_mark)
+    {
+        fprintf (stderr, "Ill formed parantheses");
+        exit (1);
+    }
     return p;
 }
 
@@ -79,24 +148,15 @@ struct fml_node *fml_group (Fml fml)
         {
             struct fml_node *sptr = fml_group (fml);
             if (sptr)
-                if (sptr->p[1])
-                {
-                    ptr2 = fml_node_alloc (fml);
-                    if (!ptr0)
-                        ptr0 = ptr2;
-                    else
-                        ptr1->p[1] = ptr2;
-                    ptr2->p[0] = sptr;
-                    ptr2->is_atom = 0;
-                }
+            {
+                ptr2 = fml_node_alloc (fml);
+                if (!ptr0)
+                    ptr0 = ptr2;
                 else
-                {
-                    ptr2 = sptr;
-                    if (!ptr0)
-                        ptr0 = ptr2;
-                    else
                         ptr1->p[1] = ptr2;
-                }
+                ptr2->p[0] = sptr;
+                ptr2->is_atom = 0;
+            }
             else
             {
                 ptr2 = fml_node_alloc (fml);
@@ -148,6 +208,38 @@ static void lexer (Fml fml)
         look_type = '}';
         look_char = (*fml->read_func)();
     }        
+    else if (look_char == '\'')
+    {
+        off = 0;
+        look_char = (*fml->read_func)();
+        while (look_char != fml->eof_mark && look_char != '\'')
+        {
+            lex_buf[off++] = look_char;
+            if (look_char == '\\')
+            {
+                look_char = (*fml->read_func)();
+                switch (look_char)
+                {
+                case 'n':
+                    lex_buf[off-1] = '\n';
+                    break;
+                case 't':
+                    lex_buf[off-1] = '\n';
+                    break;
+                case '\'':
+                    lex_buf[off-1] = '\''; 
+                    break;
+                default:
+                    lex_buf[off-1] = look_char;
+                }
+            }
+            look_char = (*fml->read_func)();
+        } 
+        lex_buf[off] = '\0';
+        look_type = 'a';
+        if (look_char == '\'')
+            look_char = (*fml->read_func)();
+    }
     else
     {
         off = 0;