X-Git-Url: http://git.indexdata.com/?a=blobdiff_plain;f=src%2Frelevance.c;h=08527aec06810451acf631fd1210ed81c791833d;hb=70a80d7e26ed2257d4b5a683bfa2a4a93e2fdb4c;hp=055198032ed948fdeb8c37d726a808b259dfbd16;hpb=710ee248da13fb269e18d87e464ce2da038ea370;p=pazpar2-moved-to-github.git

diff --git a/src/relevance.c b/src/relevance.c
index 0551980..08527ae 100644
--- a/src/relevance.c
+++ b/src/relevance.c
@@ -83,6 +83,55 @@ static struct word_entry *word_entry_match(struct relevance *r,
     return 0;
 }
 
+int relevance_snippet(struct relevance *r,
+                      const char *words, const char *name,
+                      WRBUF w_snippet)
+{
+    int no = 0;
+    const char *norm_str;
+    int highlight = 0;
+
+    pp2_charset_token_first(r->prt, words, 0);
+    while ((norm_str = pp2_charset_token_next(r->prt)))
+    {
+        size_t org_start, org_len;
+        struct word_entry *entries = r->entries;
+        int i;
+
+        pp2_get_org(r->prt, &org_start, &org_len);
+        for (; entries; entries = entries->next, i++)
+        {
+            if (*norm_str && !strcmp(norm_str, entries->norm_str))
+                break;
+        }
+        if (entries)
+        {
+            if (!highlight)
+            {
+                highlight = 1;
+                wrbuf_puts(w_snippet, "<match>");
+                no++;
+            }
+        }
+        else
+        {
+            if (highlight)
+            {
+                highlight = 0;
+                wrbuf_puts(w_snippet, "</match>");
+            }
+        }
+        wrbuf_xmlputs_n(w_snippet, words + org_start, org_len);
+    }
+    if (highlight)
+        wrbuf_puts(w_snippet, "</match>");
+    if (no)
+    {
+        yaz_log(YLOG_DEBUG, "SNIPPET match: %s", wrbuf_cstr(w_snippet));
+    }
+    return no;
+}
+
 void relevance_countwords(struct relevance *r, struct record_cluster *cluster,
                           const char *words, const char *rank,
                           const char *name)