From: Adam Dickmeiss <adam@indexdata.dk>
Date: Tue, 14 Aug 2012 13:05:25 +0000 (+0200)
Subject: ICU: support @attr 5=2, @attr 5=3 in searches
X-Git-Tag: v2.0.52-2~7
X-Git-Url: http://sru.miketaylor.org.uk/cgi-bin?a=commitdiff_plain;h=b3f079a571e404665620e8eb3bb1dd7db1ff6669;p=idzebra-moved-to-github.git

ICU: support @attr 5=2, @attr 5=3 in searches

That's left truncation and left+right truncation.
---

diff --git a/index/rpnsearch.c b/index/rpnsearch.c
index 872cf8b..f119eb5 100644
--- a/index/rpnsearch.c
+++ b/index/rpnsearch.c
@@ -237,7 +237,7 @@ static void add_non_space(const char *start, const char *end,
 static int term_100_icu(zebra_map_t zm,
                         const char **src, WRBUF term_dict, int space_split,
                         WRBUF display_term,
-                        int right_trunc)
+                        int mode)
 {
     int i;
     const char *res_buf = 0;
@@ -251,7 +251,7 @@ static int term_100_icu(zebra_map_t zm,
         return 0;
     }
     wrbuf_write(display_term, display_buf, display_len);
-    if (right_trunc)
+    if (mode)
     {
         /* ICU sort keys seem to be of the form
            basechars \x01 accents \x01 length
@@ -272,6 +272,8 @@ static int term_100_icu(zebra_map_t zm,
         }
         res_len = i; /* reduce res_len */
     }
+    if (mode & 2)
+        wrbuf_puts(term_dict, ".*");
     for (i = 0; i < res_len; i++)
     {
         if (strchr(REGEX_CHARS "\\", res_buf[i]))
@@ -281,8 +283,11 @@ static int term_100_icu(zebra_map_t zm,
             
         wrbuf_putc(term_dict, res_buf[i]);
     }
-    if (right_trunc)
+    if (mode & 1)
         wrbuf_puts(term_dict, ".*");
+    else if (mode)
+        wrbuf_puts(term_dict, "\x01\x01.*");
+        
     return 1;
 }
 
@@ -1055,6 +1060,20 @@ static ZEBRA_RES string_term(ZebraHandle zh, Z_AttributesPlusTerm *zapt,
                     return ZEBRA_OK;
                 }
                 break;
+            case 2:
+                if (!term_100_icu(zm, &termp, term_dict, space_split, display_term, 2))
+                {
+                    *term_sub = 0;
+                    return ZEBRA_OK;
+                }
+                break;
+            case 3:
+                if (!term_100_icu(zm, &termp, term_dict, space_split, display_term, 3))
+                {
+                    *term_sub = 0;
+                    return ZEBRA_OK;
+                }
+                break;
             default:
                 zebra_setError_zint(zh,
                                     YAZ_BIB1_UNSUPP_TRUNCATION_ATTRIBUTE,