X-Git-Url: http://git.indexdata.com/?p=yaz-moved-to-github.git;a=blobdiff_plain;f=src%2Fcclfind.c;h=c86015fe126a215e764bb37954b1702c7ad4e5a4;hp=f7903fe387ef7736684c84a1c8167449bbfe20e2;hb=8cb8947e3a7bff4dbf8f124871cb4905df1adce7;hpb=3e9991341defe84826dbb663400c2b434ef03641

diff --git a/src/cclfind.c b/src/cclfind.c
index f7903fe..c86015f 100644
--- a/src/cclfind.c
+++ b/src/cclfind.c
@@ -1,8 +1,8 @@
 /* This file is part of the YAZ toolkit.
- * Copyright (C) 1995-2012 Index Data
+ * Copyright (C) Index Data
  * See the file LICENSE for details.
  */
-/** 
+/**
  * \file cclfind.c
  * \brief Implements parsing of a CCL FIND query.
  *
@@ -61,7 +61,7 @@ static int qual_val_type(ccl_qualifier_t *qa, int type, int value,
 
 /**
  * strxcat: concatenate strings.
- * n:      Null-terminated Destination string 
+ * n:      Null-terminated Destination string
  * src:    Source string to be appended (not null-terminated)
  * len:    Length of source string.
  */
@@ -171,7 +171,7 @@ static struct ccl_rpn_attr *add_attr_node(struct ccl_rpn_node *p,
                                            const char *set, int type)
 {
     struct ccl_rpn_attr *n;
-    
+
     n = (struct ccl_rpn_attr *)xmalloc(sizeof(*n));
     ccl_assert(n);
     if (set)
@@ -181,7 +181,7 @@ static struct ccl_rpn_attr *add_attr_node(struct ccl_rpn_node *p,
     n->type = type;
     n->next = p->u.t.attr_list;
     p->u.t.attr_list = n;
-    
+
     return n;
 }
 
@@ -229,9 +229,38 @@ static size_t cmp_operator(const char **aliases, const char *input)
 
 #define REGEX_CHARS "^[]{}()|.*+?!$"
 #define CCL_CHARS "#?\\"
+
+static int has_ccl_masking(const char *src_str,
+                           size_t src_len,
+                           const char **truncation_aliases,
+                           const char **mask_aliases)
+{
+    size_t j;
+    int quote_mode = 0;
+
+    for (j = 0; j < src_len; j++)
+    {
+        size_t op_size;
+        if (j > 0 && src_str[j-1] == '\\')
+            ;
+        else if (src_str[j] == '"')
+            quote_mode = !quote_mode;
+        else if (!quote_mode &&
+                 (op_size = cmp_operator(truncation_aliases,
+                                         src_str + j)))
+            return 1;
+        else if (!quote_mode &&
+                 (op_size = cmp_operator(mask_aliases,
+                                          src_str + j)))
+            return 1;
+    }
+    return 0;
+}
+
 static int append_term(CCL_parser cclp, const char *src_str, size_t src_len,
-                       char *dst_term, int *regex_trunc, int *z3958_trunc,
+                       char *dst_term, int regex_trunc, int z3958_trunc,
                        const char **truncation_aliases,
+                       const char **mask_aliases,
                        int is_first, int is_last,
                        int *left_trunc, int *right_trunc)
 {
@@ -243,16 +272,10 @@ static int append_term(CCL_parser cclp, const char *src_str, size_t src_len,
         size_t op_size;
         if (j > 0 && src_str[j-1] == '\\')
         {
-            if (*regex_trunc && strchr(REGEX_CHARS "\\", src_str[j]))
-            {
-                *regex_trunc = 2;
+            if (regex_trunc && strchr(REGEX_CHARS "\\", src_str[j]))
                 strcat(dst_term, "\\");
-            }
-            else if (*z3958_trunc && strchr(CCL_CHARS "\\", src_str[j]))
-            {
-                *z3958_trunc = 2;
+            else if (z3958_trunc && strchr(CCL_CHARS "\\", src_str[j]))
                 strcat(dst_term, "\\");
-            }
             strxcat(dst_term, src_str + j, 1);
         }
         else if (src_str[j] == '"')
@@ -263,16 +286,10 @@ static int append_term(CCL_parser cclp, const char *src_str, size_t src_len,
             )
         {
             j += (op_size - 1);  /* j++ in for loop */
-            if (*regex_trunc)
-            {
+            if (regex_trunc)
                 strcat(dst_term, ".*");
-                *regex_trunc = 2; /* regex trunc is really needed */
-            }
-            else if (*z3958_trunc)
-            {
+            else if (z3958_trunc)
                 strcat(dst_term, "?");
-                *z3958_trunc = 2;
-            }
             else if (is_first && j == 0)
                 *left_trunc = 1;
             else if (is_last && j == src_len - 1)
@@ -283,18 +300,14 @@ static int append_term(CCL_parser cclp, const char *src_str, size_t src_len,
                 return -1;
             }
         }
-        else if (!quote_mode && src_str[j] == '#')
+        else if (!quote_mode &&
+                 (op_size = cmp_operator(mask_aliases, src_str + j)))
         {
-            if (*regex_trunc)
-            {
+            j += (op_size - 1);  /* j++ in for loop */
+            if (regex_trunc)
                 strcat(dst_term, ".");
-                *regex_trunc = 2; /* regex trunc is really needed */
-            }
-            else if (*z3958_trunc)
-            {
+            else if (z3958_trunc)
                 strcat(dst_term, "#");
-                *z3958_trunc = 2;
-            }
             else
             {
                 cclp->error_code = CCL_ERR_TRUNC_NOT_SINGLE;
@@ -303,24 +316,203 @@ static int append_term(CCL_parser cclp, const char *src_str, size_t src_len,
         }
         else if (src_str[j] != '\\')
         {
-            if (*regex_trunc && strchr(REGEX_CHARS, src_str[j]))
-            {
-                *regex_trunc = 2;
+            if (regex_trunc && strchr(REGEX_CHARS, src_str[j]))
                 strcat(dst_term, "\\");
-            }
-            else if (*z3958_trunc && strchr(CCL_CHARS, src_str[j]))
-            {
-                *z3958_trunc = 2;
+            else if (z3958_trunc && strchr(CCL_CHARS, src_str[j]))
                 strcat(dst_term, "\\");
-            }
-            strxcat(dst_term, src_str + j, 1);                    
+            strxcat(dst_term, src_str + j, 1);
         }
     }
     return 0;
 }
 
+
+#if YAZ_781
+static struct ccl_rpn_node *ccl_term_one_use(CCL_parser cclp,
+                                             struct ccl_rpn_attr *attr_use,
+                                             ccl_qualifier_t *qa,
+                                             size_t no, int term_len,
+                                             const char **truncation_aliases,
+                                             const char **mask_aliases,
+                                             int is_phrase,
+                                             int is_ccl_masked,
+                                             int auto_group)
+{
+    struct ccl_rpn_node *p;
+    size_t i;
+    int relation_value = -1;
+    int position_value = -1;
+    int structure_value = -1;
+    int truncation_value = -1;
+    int completeness_value = -1;
+
+    int left_trunc = 0;
+    int right_trunc = 0;
+    int regex_trunc = 0;
+    int z3958_trunc = 0;
+    char *attset;
+    struct ccl_token *lookahead = cclp->look_token;
+
+    p = ccl_rpn_node_create(CCL_RPN_TERM);
+    p->u.t.attr_list = NULL;
+    p->u.t.term = NULL;
+    if (qa && qa[0])
+    {
+        const char *n = ccl_qual_get_name(qa[0]);
+        if (n)
+            p->u.t.qual = xstrdup(n);
+    }
+    /* go through all attributes and add them to the attribute list */
+    for (i = 0; qa && qa[i]; i++)
+    {
+        struct ccl_rpn_attr *attr;
+        for (attr = ccl_qual_get_attr(qa[i]); attr; attr = attr->next)
+            if (attr->type != 1 || attr == attr_use)
+            {
+                switch (attr->kind)
+                {
+                case CCL_RPN_ATTR_STRING:
+                    ccl_add_attr_string(p, attr->set, attr->type,
+                                        attr->value.str);
+                    break;
+                case CCL_RPN_ATTR_NUMERIC:
+                    if (attr->value.numeric > 0)
+                    {   /* deal only with REAL attributes (positive) */
+                        switch (attr->type)
+                        {
+                        case CCL_BIB1_REL:
+                            if (relation_value != -1)
+                                continue;
+                            relation_value = attr->value.numeric;
+                            break;
+                        case CCL_BIB1_POS:
+                            if (position_value != -1)
+                                continue;
+                            position_value = attr->value.numeric;
+                            break;
+                        case CCL_BIB1_STR:
+                            if (structure_value != -1)
+                                continue;
+                            structure_value = attr->value.numeric;
+                            break;
+                        case CCL_BIB1_TRU:
+                            if (truncation_value != -1)
+                                continue;
+                            truncation_value = attr->value.numeric;
+                            break;
+                        case CCL_BIB1_COM:
+                            if (completeness_value != -1)
+                                continue;
+                            completeness_value = attr->value.numeric;
+                            break;
+                        }
+                        ccl_add_attr_numeric(p, attr->set, attr->type,
+                                             attr->value.numeric);
+                    }
+                }
+            }
+    }
+    attset = 0;
+    if (structure_value == -1 && (
+            auto_group ||
+            qual_val_type(qa, CCL_BIB1_STR, CCL_BIB1_STR_WP, &attset))
+        )
+    {
+        if (!is_phrase)
+            ccl_add_attr_numeric(p, attset, CCL_BIB1_STR, 2);
+        else
+            ccl_add_attr_numeric(p, attset, CCL_BIB1_STR, 1);
+    }
+    if (qual_val_type(qa, CCL_BIB1_TRU, CCL_BIB1_TRU_CAN_REGEX,
+                      &attset))
+    {
+        if (is_ccl_masked)
+            regex_trunc = 1; /* regex trunc (102) allowed */
+    }
+    else if (qual_val_type(qa, CCL_BIB1_TRU, CCL_BIB1_TRU_CAN_Z3958,
+                           &attset))
+    {
+        if (is_ccl_masked)
+            z3958_trunc = 1; /* Z39.58 trunc (CCL) trunc allowed */
+    }
+    /* make the RPN token */
+    p->u.t.term = (char *)xmalloc(term_len * 2 + 2);
+    ccl_assert(p->u.t.term);
+    p->u.t.term[0] = '\0';
+
+    for (i = 0; i < no; i++)
+    {
+        const char *src_str = lookahead->name;
+        size_t src_len = lookahead->len;
+
+        if (p->u.t.term[0] && lookahead->ws_prefix_len)
+        {
+            strxcat(p->u.t.term, lookahead->ws_prefix_buf,
+                    lookahead->ws_prefix_len);
+        }
+        if (append_term(cclp, src_str, src_len, p->u.t.term, regex_trunc,
+                        z3958_trunc, truncation_aliases, mask_aliases,
+                        i == 0, i == no - 1,
+                        &left_trunc, &right_trunc))
+        {
+            ccl_rpn_delete(p);
+            return NULL;
+        }
+        lookahead = lookahead->next;
+    }
+    if (left_trunc && right_trunc)
+    {
+        if (!qual_val_type(qa, CCL_BIB1_TRU, CCL_BIB1_TRU_CAN_BOTH,
+                           &attset))
+        {
+            cclp->error_code = CCL_ERR_TRUNC_NOT_BOTH;
+            ccl_rpn_delete(p);
+            return NULL;
+        }
+        ccl_add_attr_numeric(p, attset, CCL_BIB1_TRU, 3);
+    }
+    else if (right_trunc)
+    {
+        if (!qual_val_type(qa, CCL_BIB1_TRU, CCL_BIB1_TRU_CAN_RIGHT,
+                           &attset))
+        {
+            cclp->error_code = CCL_ERR_TRUNC_NOT_RIGHT;
+            ccl_rpn_delete(p);
+            return NULL;
+        }
+        ccl_add_attr_numeric(p, attset, CCL_BIB1_TRU, 1);
+    }
+    else if (left_trunc)
+    {
+        if (!qual_val_type(qa, CCL_BIB1_TRU, CCL_BIB1_TRU_CAN_LEFT,
+                           &attset))
+        {
+            cclp->error_code = CCL_ERR_TRUNC_NOT_LEFT;
+            ccl_rpn_delete(p);
+            return NULL;
+        }
+        ccl_add_attr_numeric(p, attset, CCL_BIB1_TRU, 2);
+    }
+    else if (regex_trunc)
+    {
+        ccl_add_attr_numeric(p, attset, CCL_BIB1_TRU, 102);
+    }
+    else if (z3958_trunc)
+    {
+        ccl_add_attr_numeric(p, attset, CCL_BIB1_TRU, 104);
+    }
+    else
+    {
+        if (qual_val_type(qa, CCL_BIB1_TRU, CCL_BIB1_TRU_CAN_NONE,
+                          &attset))
+            ccl_add_attr_numeric(p, attset, CCL_BIB1_TRU, 100);
+    }
+    return p;
+}
+#endif
+
 /**
- * search_term: Parse CCL search term. 
+ * search_term: Parse CCL search term.
  * cclp:   CCL Parser
  * qa:     Qualifier attributes already applied.
  * term_list: tokens we accept as terms in context
@@ -336,9 +528,10 @@ static struct ccl_rpn_node *search_term_x(CCL_parser cclp,
     int and_list = 0;
     int auto_group = 0;
     int or_list = 0;
-    char *attset;
     const char **truncation_aliases;
     const char *t_default[2];
+    const char **mask_aliases;
+    const char *m_default[2];
 
     truncation_aliases =
         ccl_qual_search_special(cclp->bibset, "truncation");
@@ -349,6 +542,16 @@ static struct ccl_rpn_node *search_term_x(CCL_parser cclp,
         t_default[1] = 0;
     }
 
+    mask_aliases =
+        ccl_qual_search_special(cclp->bibset, "mask");
+    if (!mask_aliases)
+    {
+        mask_aliases = m_default;
+        m_default[0] = "#";
+        m_default[1] = 0;
+    }
+
+
     if (qual_val_type(qa, CCL_BIB1_STR, CCL_BIB1_STR_AND_LIST, 0))
         and_list = 1;
     if (qual_val_type(qa, CCL_BIB1_STR, CCL_BIB1_STR_AUTO_GROUP, 0))
@@ -357,23 +560,28 @@ static struct ccl_rpn_node *search_term_x(CCL_parser cclp,
         or_list = 1;
     while (1)
     {
-        struct ccl_rpn_node *p;
+        struct ccl_rpn_node *p = 0;
         size_t no, i;
+        int len = 0;
         int is_phrase = 0;
+        int is_ccl_masked = 0;
+#if YAZ_781
+#else
+        char *attset;
         int relation_value = -1;
         int position_value = -1;
         int structure_value = -1;
         int truncation_value = -1;
         int completeness_value = -1;
-        int len = 0;
         int left_trunc = 0;
         int right_trunc = 0;
         int regex_trunc = 0;
         int z3958_trunc = 0;
+#endif
         size_t max = 200;
         if (and_list || or_list || !multi)
             max = 1;
-        
+
         /* ignore commas when dealing with and-lists .. */
         if (and_list && lookahead && lookahead->kind == CCL_TOK_COMMA)
         {
@@ -388,6 +596,11 @@ static struct ccl_rpn_node *search_term_x(CCL_parser cclp,
                 if (lookahead->name[i] == ' ')
                     this_is_phrase = 1;
 
+            if (has_ccl_masking(lookahead->name, lookahead->len,
+                                truncation_aliases,
+                                mask_aliases))
+                is_ccl_masked = 1;
+
             if (auto_group)
             {
                 if (no > 0 && (is_phrase || is_phrase != this_is_phrase))
@@ -402,7 +615,49 @@ static struct ccl_rpn_node *search_term_x(CCL_parser cclp,
 
         if (len == 0)
             break;      /* no more terms . stop . */
-                
+
+#if YAZ_781
+        /* go through all attributes and add them to the attribute list */
+        for (i = 0; qa && qa[i]; i++)
+        {
+            struct ccl_rpn_attr *attr;
+
+            for (attr = ccl_qual_get_attr(qa[i]); attr; attr = attr->next)
+                if (attr->type == 1)
+                {
+                    struct ccl_rpn_node *tmp2;
+                    tmp2 = ccl_term_one_use(cclp, attr, qa, no, len,
+                                            truncation_aliases, mask_aliases,
+                                            is_phrase, is_ccl_masked,
+                                            auto_group);
+                    if (!tmp2)
+                    {
+                        ccl_rpn_delete(p);
+                        return 0;
+                    }
+                    if (!p)
+                        p = tmp2;
+                    else
+                    {
+                        struct ccl_rpn_node *tmp1;
+                        tmp1 = ccl_rpn_node_create(CCL_RPN_OR);
+                        tmp1->u.p[0] = p;
+                        tmp1->u.p[1] = tmp2;
+                        p = tmp1;
+                    }
+                }
+        }
+        if (!p)
+        {
+            p = ccl_term_one_use(cclp, 0 /* attr: no use */, qa, no, len,
+                                 truncation_aliases, mask_aliases,
+                                 is_phrase, is_ccl_masked, auto_group);
+            if (!p)
+                return 0;
+        }
+        for (i = 0; i < no; i++)
+            ADVANCE;
+#else
         /* create the term node, but wait a moment before adding the term */
         p = ccl_rpn_node_create(CCL_RPN_TERM);
         p->u.t.attr_list = NULL;
@@ -418,7 +673,7 @@ static struct ccl_rpn_node *search_term_x(CCL_parser cclp,
         for (i=0; qa && qa[i]; i++)
         {
             struct ccl_rpn_attr *attr;
-            
+
             for (attr = ccl_qual_get_attr(qa[i]); attr; attr = attr->next)
                 switch(attr->kind)
                 {
@@ -462,8 +717,9 @@ static struct ccl_rpn_node *search_term_x(CCL_parser cclp,
                     }
                 }
         }
+        attset = 0;
         if (structure_value == -1 && (
-                auto_group || 
+                auto_group ||
                 qual_val_type(qa, CCL_BIB1_STR, CCL_BIB1_STR_WP, &attset))
             )
         {
@@ -476,12 +732,14 @@ static struct ccl_rpn_node *search_term_x(CCL_parser cclp,
         if (qual_val_type(qa, CCL_BIB1_TRU, CCL_BIB1_TRU_CAN_REGEX,
                           &attset))
         {
-            regex_trunc = 1; /* regex trunc (102) allowed */
+            if (is_ccl_masked)
+                regex_trunc = 1; /* regex trunc (102) allowed */
         }
         else if (qual_val_type(qa, CCL_BIB1_TRU, CCL_BIB1_TRU_CAN_Z3958,
                           &attset))
         {
-            z3958_trunc = 1; /* Z39.58 trunc (CCL) trunc allowed */
+            if (is_ccl_masked)
+                z3958_trunc = 1; /* Z39.58 trunc (CCL) trunc allowed */
         }
 
         /* make the RPN token */
@@ -498,8 +756,9 @@ static struct ccl_rpn_node *search_term_x(CCL_parser cclp,
                 strxcat(p->u.t.term, cclp->look_token->ws_prefix_buf,
                         cclp->look_token->ws_prefix_len);
             }
-            if (append_term(cclp, src_str, src_len, p->u.t.term, &regex_trunc,
-                            &z3958_trunc, truncation_aliases, i == 0, i == no - 1,
+            if (append_term(cclp, src_str, src_len, p->u.t.term, regex_trunc,
+                            z3958_trunc, truncation_aliases, mask_aliases,
+                            i == 0, i == no - 1,
                             &left_trunc, &right_trunc))
             {
                 ccl_rpn_delete(p);
@@ -507,26 +766,6 @@ static struct ccl_rpn_node *search_term_x(CCL_parser cclp,
             }
             ADVANCE;
         }
-        /* make the top node point to us.. */
-        if (p_top)
-        {
-            struct ccl_rpn_node *tmp;
-
-            if (or_list)
-                tmp = ccl_rpn_node_create(CCL_RPN_OR);
-            else if (and_list)
-                tmp = ccl_rpn_node_create(CCL_RPN_AND);
-            else
-                tmp = ccl_rpn_node_create(CCL_RPN_AND);
-            tmp->u.p[0] = p_top;
-            tmp->u.p[1] = p;
-
-            p_top = tmp;
-        }
-        else
-            p_top = p;
-
-
         if (left_trunc && right_trunc)
         {
             if (!qual_val_type(qa, CCL_BIB1_TRU, CCL_BIB1_TRU_CAN_BOTH,
@@ -560,11 +799,11 @@ static struct ccl_rpn_node *search_term_x(CCL_parser cclp,
             }
             ccl_add_attr_numeric(p, attset, CCL_BIB1_TRU, 2);
         }
-        else if (regex_trunc == 2)
+        else if (regex_trunc)
         {
             ccl_add_attr_numeric(p, attset, CCL_BIB1_TRU, 102);
         }
-        else if (z3958_trunc == 2)
+        else if (z3958_trunc)
         {
             ccl_add_attr_numeric(p, attset, CCL_BIB1_TRU, 104);
         }
@@ -574,6 +813,26 @@ static struct ccl_rpn_node *search_term_x(CCL_parser cclp,
                                &attset))
                 ccl_add_attr_numeric(p, attset, CCL_BIB1_TRU, 100);
         }
+#endif
+        /* make the top node point to us.. */
+        if (p_top)
+        {
+            struct ccl_rpn_node *tmp;
+
+            if (or_list)
+                tmp = ccl_rpn_node_create(CCL_RPN_OR);
+            else if (and_list)
+                tmp = ccl_rpn_node_create(CCL_RPN_AND);
+            else
+                tmp = ccl_rpn_node_create(CCL_RPN_AND);
+            tmp->u.p[0] = p_top;
+            tmp->u.p[1] = p;
+
+            p_top = tmp;
+        }
+        else
+            p_top = p;
+
         if (!multi)
             break;
     }
@@ -612,7 +871,7 @@ static struct ccl_rpn_node *search_terms2(CCL_parser cclp,
         static int list[] = {
             CCL_TOK_TERM, CCL_TOK_COMMA,CCL_TOK_EQ,
             CCL_TOK_REL, CCL_TOK_SET, -1};
-        
+
         return search_term_x(cclp, qa, list, 1);
     }
 }
@@ -658,12 +917,17 @@ struct ccl_rpn_node *qualifiers_order(CCL_parser cclp,
         if (KIND == CCL_TOK_TERM)
         {
             size_t i;
+            int quote_mode = 0;
             for (i = 0; i<cclp->look_token->len; i++)
             {
-                if (cclp->look_token->name[i] == '-')
+                if (i > 0 && cclp->look_token->name[i] == '\\')
+                    ;
+                else if (cclp->look_token->name[i] == '"')
+                    quote_mode = !quote_mode;
+                else if (cclp->look_token->name[i] == '-' && !quote_mode)
                     break;
             }
-            
+
             if (cclp->look_token->len > 1 && i == 0)
             {   /*  -xx*/
                 struct ccl_token *ntoken = ccl_token_add(cclp->look_token);
@@ -705,7 +969,7 @@ struct ccl_rpn_node *qualifiers_order(CCL_parser cclp,
                      cclp->look_token->next->kind == CCL_TOK_TERM &&
                      cclp->look_token->next->len > 1 &&
                      cclp->look_token->next->name[0] == '-')
-                     
+
             {   /* xx -yy */
                 /* we _know_ that xx does not have - in it */
                 struct ccl_token *ntoken = ccl_token_add(cclp->look_token);
@@ -715,11 +979,11 @@ struct ccl_rpn_node *qualifiers_order(CCL_parser cclp,
                 ntoken->len = 1;
 
                 (ntoken->next->name)++;        /* adjust yy */
-                (ntoken->next->len)--; 
+                (ntoken->next->len)--;
             }
         }
     }
-        
+
     if (rel == 3 &&
         KIND == CCL_TOK_TERM &&
         cclp->look_token->next && cclp->look_token->next->len == 1 &&
@@ -732,7 +996,7 @@ struct ccl_rpn_node *qualifiers_order(CCL_parser cclp,
         if (KIND == CCL_TOK_TERM)  /* = term - term  ? */
         {
             struct ccl_rpn_node *p2;
-            
+
             if (!(p2 = search_term(cclp, ap)))
             {
                 ccl_rpn_delete(p1);
@@ -765,10 +1029,11 @@ struct ccl_rpn_node *qualifiers_order(CCL_parser cclp,
     {
         if (!(p = search_terms(cclp, ap)))
             return NULL;
-        ccl_add_attr_numeric(p, attset, CCL_BIB1_REL, rel);
+        if (rel != 3 ||
+            !qual_val_type(ap, CCL_BIB1_REL, CCL_BIB1_REL_OMIT_EQUALS, 0))
+            ccl_add_attr_numeric(p, attset, CCL_BIB1_REL, rel);
         return p;
     }
-    cclp->error_code = CCL_ERR_TERM_EXPECTED;
     return NULL;
 }
 
@@ -776,7 +1041,7 @@ static
 struct ccl_rpn_node *qualifier_relation(CCL_parser cclp, ccl_qualifier_t *ap)
 {
     char *attset;
-    
+
     if (qual_val_type(ap, CCL_BIB1_REL, CCL_BIB1_REL_ORDER, &attset)
         || qual_val_type(ap, CCL_BIB1_REL, CCL_BIB1_REL_PORDER, &attset))
         return qualifiers_order(cclp, ap, attset);
@@ -792,13 +1057,13 @@ struct ccl_rpn_node *qualifier_relation(CCL_parser cclp, ccl_qualifier_t *ap)
 }
 
 /**
- * qualifier_list: Parse CCL qualifiers and search terms. 
+ * qualifier_list: Parse CCL qualifiers and search terms.
  * cclp:   CCL Parser
  * la:     Token pointer to RELATION token.
  * qa:     Qualifier attributes already applied.
  * return: pointer to node(s); NULL on error.
  */
-static struct ccl_rpn_node *qualifier_list(CCL_parser cclp, 
+static struct ccl_rpn_node *qualifier_list(CCL_parser cclp,
                                            struct ccl_token *la,
                                            ccl_qualifier_t *qa)
 {
@@ -848,7 +1113,7 @@ static struct ccl_rpn_node *qualifier_list(CCL_parser cclp,
             {
                 struct ccl_rpn_node *node_sub;
                 cclp->look_token = la;
-                
+
                 node_sub = qualifier_relation(cclp, ap);
                 if (!node_sub)
                 {
@@ -858,7 +1123,7 @@ static struct ccl_rpn_node *qualifier_list(CCL_parser cclp,
                 }
                 if (node)
                 {
-                    struct ccl_rpn_node *node_this = 
+                    struct ccl_rpn_node *node_this =
                         ccl_rpn_node_create(CCL_RPN_OR);
                     node_this->u.p[0] = node;
                     node_this->u.p[1] = node_sub;
@@ -911,17 +1176,17 @@ static struct ccl_rpn_node *qualifier_list(CCL_parser cclp,
             if (qa)
             {
                 ccl_qualifier_t *qa0 = qa;
-                
+
                 while (*qa0)
                     ap[i++] = *qa0++;
             }
             ap[i] = NULL;
-            
+
             if (!found)
                 break;
-            
+
             cclp->look_token = lookahead;
-            
+
             node_sub = qualifier_relation(cclp, ap);
             if (!node_sub)
             {
@@ -930,7 +1195,7 @@ static struct ccl_rpn_node *qualifier_list(CCL_parser cclp,
             }
             if (node)
             {
-                struct ccl_rpn_node *node_this = 
+                struct ccl_rpn_node *node_this =
                     ccl_rpn_node_create(CCL_RPN_OR);
                 node_this->u.p[0] = node;
                 node_this->u.p[1] = node_sub;
@@ -1072,7 +1337,7 @@ static struct ccl_rpn_node *search_elements(CCL_parser cclp,
             }
             if (node)
             {
-                struct ccl_rpn_node *node_this = 
+                struct ccl_rpn_node *node_this =
                     ccl_rpn_node_create(CCL_RPN_OR);
                 node_this->u.p[0] = node;
                 node_this->u.p[1] = node_sub;
@@ -1160,7 +1425,7 @@ struct ccl_rpn_node *ccl_parser_find_str(CCL_parser cclp, const char *str)
     return p;
 }
 
-struct ccl_rpn_node *ccl_parser_find_token(CCL_parser cclp, 
+struct ccl_rpn_node *ccl_parser_find_token(CCL_parser cclp,
                                            struct ccl_token *list)
 {
     struct ccl_rpn_node *p;