sockets: fix for whether poll is available

[yaz-moved-to-github.git] / src / nmemsdup.c

diff --git a/src/nmemsdup.c b/src/nmemsdup.c
index 95f182c..fcfb074 100644 (file)
--- a/src/nmemsdup.c
+++ b/src/nmemsdup.c
@@ -1,8 +1,6 @@
-/*
- * Copyright (C) 1995-2007, Index Data ApS
+/* This file is part of the YAZ toolkit.
+ * Copyright (C) 1995-2011 Index Data
  * See the file LICENSE for details.
- *
- * $Id: nmemsdup.c,v 1.11 2007-05-06 20:12:20 adam Exp $
  */
 
 /**
@@ -40,9 +38,16 @@ char *nmem_strdupn (NMEM mem, const char *src, size_t n)
     return dst;
 }
 
-int *nmem_intdup(NMEM mem, int v)
+nmem_int_t *nmem_intdup(NMEM mem, nmem_int_t v)
+{
+    nmem_int_t *dst = (nmem_int_t*) nmem_malloc (mem, sizeof(*dst));
+    *dst = v;
+    return dst;
+}
+
+nmem_bool_t *nmem_booldup(NMEM mem, nmem_bool_t v)
 {
-    int *dst = (int*) nmem_malloc (mem, sizeof(int));
+    nmem_bool_t *dst = (nmem_bool_t*) nmem_malloc (mem, sizeof(*dst));
     *dst = v;
     return dst;
 }
@@ -52,37 +57,74 @@ void nmem_strsplit_blank(NMEM nmem, const char *dstr, char ***darray, int *num)
     nmem_strsplit(nmem, " ", dstr, darray, num);
 }
 
+
 void nmem_strsplit(NMEM nmem, const char *delim, const char *dstr,
                    char ***darray, int *num)
 {
-    const char *cp = dstr;
-    for (*num = 0; *cp; (*num)++)
-    {
-        while (*cp && strchr(delim, *cp))
-            cp++;
-        if (!*cp)
-            break;
-        while (*cp && !strchr(delim, *cp))
-            cp++;
-    }
-    if (!*num)
-        *darray = 0;
-    else
+    nmem_strsplitx(nmem, delim, dstr, darray, num, 1);
+}
+
+void nmem_strsplitx(NMEM nmem, const char *delim, const char *dstr,
+                    char ***darray, int *num, int collapse)
+{
+    nmem_strsplit_escape(nmem, delim, dstr, darray, num, collapse, 0);
+}
+
+void nmem_strsplit_escape(NMEM nmem, const char *delim, const char *dstr,
+                          char ***darray, int *num, int collapse,
+                          int escape_char)
+{
+    *darray = 0;
+    /* two passes over the input string.. */
+    while (1)
     {
         size_t i = 0;
-        *darray = (char **) nmem_malloc(nmem, *num * sizeof(**darray));
-        for (cp = dstr; *cp; )
+        const char *cp = dstr;
+        while (1)
         {
             const char *cp0;
-            while (*cp && strchr(delim, *cp))
+            if (collapse)
+            {
+                if (!*cp)
+                    break;
+                while (*cp && strchr(delim, *cp) && *cp != escape_char)
+                    cp++;
+                if (!*cp)
+                    break;
+                cp0 = cp;
+                while (*cp && !strchr(delim, *cp))
+                {
+                    if (*cp == escape_char)
+                        cp++;
+                    cp++;
+                }
+                if (*darray)
+                    (*darray)[i] = nmem_strdupn(nmem, cp0, cp - cp0);
+                i++;
+            }
+            else
+            {
+                cp0 = cp;
+                while (*cp && !strchr(delim, *cp))
+                {
+                    if (*cp == escape_char)
+                        cp++;
+                    cp++;
+                }
+                if (*darray)
+                    (*darray)[i] = nmem_strdupn(nmem, cp0, cp - cp0);
+                i++;
+                if (!*cp)
+                    break;
                 cp++;
-            if (!*cp)
-                break;
-            cp0 = cp;
-            while (*cp && !strchr(delim, *cp))
-                cp++;
-            (*darray)[i++] = nmem_strdupn(nmem, cp0, cp - cp0);
+            }
         }
+        *num = i;
+        if (!*num)
+            break; /* no items, so stop, *darray=0 already */
+        else if (*darray)
+            break; /* second pass, stop */
+        *darray = (char **) nmem_malloc(nmem, *num * sizeof(**darray));
     }
 }
 
@@ -108,6 +150,7 @@ char *nmem_text_node_cdata(const xmlNode *ptr_cdata, NMEM nmem)
 /*
  * Local variables:
  * c-basic-offset: 4
+ * c-file-style: "Stroustrup"
  * indent-tabs-mode: nil
  * End:
  * vim: shiftwidth=4 tabstop=8 expandtab