X-Git-Url: http://git.indexdata.com/?p=yaz-moved-to-github.git;a=blobdiff_plain;f=retrieval%2Fd1_tagset.c;fp=retrieval%2Fd1_tagset.c;h=794315e524d91cdc8136a91d35c3b26b16c6ef5a;hp=0000000000000000000000000000000000000000;hb=cea212fba995de3fa0d6d6723d828f6fd7ca31df;hpb=b6a465d196c8738156814a9fb3ba9e2450dd1be4

diff --git a/retrieval/d1_tagset.c b/retrieval/d1_tagset.c
new file mode 100644
index 0000000..794315e
--- /dev/null
+++ b/retrieval/d1_tagset.c
@@ -0,0 +1,252 @@
+/*
+ * Copyright (c) 1995, Index Data.
+ * See the file LICENSE for details.
+ * Sebastian Hammer, Adam Dickmeiss
+ *
+ * $Log: d1_tagset.c,v $
+ * Revision 1.1  1995-11-01 11:56:09  quinn
+ * Added Retrieval (data management) functions en masse.
+ *
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <ctype.h>
+#include <string.h>
+
+#include <xmalloc.h>
+#include <log.h>
+
+#include "data1.h"
+
+/*
+ * We'll probably want to add some sort of hashed index to these lookup-
+ * functions eventually.
+ */
+
+data1_datatype data1_maptype(char *t)
+{
+    static struct
+    {
+	char *tname;
+	data1_datatype type;
+    } types[] =
+    {
+	{"structured", DATA1K_structured},
+	{"string", DATA1K_string},
+	{"numeric", DATA1K_numeric},
+	{"oid", DATA1K_oid},
+	{"bool", DATA1K_bool},
+	{"generalizedtime", DATA1K_generalizedtime},
+	{"intunit", DATA1K_intunit},
+	{"int", DATA1K_int},
+	{"octetstring", DATA1K_octetstring},
+	{0, -1}
+    };
+    int i;
+
+    for (i = 0; types[i].tname; i++)
+	if (!data1_matchstr(types[i].tname, t))
+	    return types[i].type;
+    return 0;
+}
+
+data1_tag *data1_gettagbynum(data1_tagset *s, int type, int value)
+{
+    data1_tag *r;
+
+    for (; s; s = s->next)
+    {
+	/* scan local set */
+	if (type == s->type)
+	    for (r = s->tags; r; r = r->next)
+		if (r->which == DATA1T_numeric && r->value.numeric == value)
+		    return r;
+	/* scan included sets */
+	if (s->children && (r = data1_gettagbynum(s->children, type, value)))
+	    return r;
+    }
+    return 0;
+}
+
+data1_tag *data1_gettagbyname(data1_tagset *s, char *name)
+{
+    data1_tag *r;
+
+    for (; s; s = s->next)
+    {
+	/* scan local set */
+	for (r = s->tags; r; r = r->next)
+	{
+	    data1_name *np;
+
+	    for (np = r->names; np; np = np->next)
+		if (!data1_matchstr(np->name, name))
+		    return r;
+	}
+	/* scan included sets */
+	if (s->children && (r = data1_gettagbyname(s->children, name)))
+	    return r;
+    }
+    return 0;
+}
+
+data1_tagset *data1_read_tagset(char *file)
+{
+    char line[512], *r, cmd[512], args[512];
+    data1_tagset *res = 0, **childp;
+    data1_tag **tagp;
+    FILE *f;
+
+    if (!(f = fopen(file, "r")))
+    {
+	logf(LOG_WARN|LOG_ERRNO, "%s", file);
+	return 0;
+    }
+
+    if (!(res = xmalloc(sizeof(*res))))
+	abort();
+    res->name = 0;
+    res->type = 0;
+    res->tags = 0;
+    res->children = 0;
+    res->next = 0;
+    childp = &res->children;
+    tagp = &res->tags;
+
+    for (;;)
+    {
+	while ((r = fgets(line, 512, f)))
+	{
+	    while (*r && isspace(*r))
+		r++;
+	    if (*r && *r != '#')
+		break;
+	}
+	if (!r)
+	{
+	    fclose(f);
+	    return res;
+	}
+	if (sscanf(r, "%s %[^\n]", cmd, args) < 2)
+	    *args = '\0';
+	if (!strcmp(cmd, "tag"))
+	{
+	    int value;
+	    char names[512], type[512], *nm;
+	    data1_tag *rr;
+	    data1_name **npp;
+
+	    if (sscanf(args, "%d %s %s", &value, names, type) < 3)
+	    {
+		logf(LOG_WARN, "Bad number of parms in '%s' in %s",
+		    args, file);
+		fclose(f);
+		return 0;
+	    }
+	    if (!(rr = *tagp = xmalloc(sizeof(*rr))))
+		abort();
+
+	    rr->tagset = res;
+	    rr->next = 0;
+	    rr->which = DATA1T_numeric;
+	    rr->value.numeric = value;
+	    /*
+	     * how to deal with local numeric tags?
+	     */
+
+	    if (!(rr->kind = data1_maptype(type)))
+	    {
+		logf(LOG_WARN, "Unknown datatype %s in %s", type, file);
+		fclose(f);
+		return 0;
+	    }
+	    
+	    /* read namelist */
+	    nm = names;
+	    npp = &rr->names;
+	    do
+	    {
+		char *e;
+
+		if (!(*npp = xmalloc(sizeof(**npp))))
+		    abort();
+		if ((e = strchr(nm, '/')))
+		    *(e++) = '\0';
+		if (!((*npp)->name = xmalloc(strlen(nm)+1)))
+		    abort();
+		strcpy((*npp)->name, nm);
+		(*npp)->next = 0;
+		npp = &(*npp)->next;
+		nm = e;
+	    }
+	    while (nm);
+	    tagp = &rr->next;
+	}
+	else if (!strcmp(cmd, "name"))
+	{
+	    char name[512];
+
+	    if (!sscanf(args, "%s", name))
+	    {
+		logf(LOG_WARN, "%s malformed name directive in %s", file);
+		fclose(f);
+		return 0;
+	    }
+	    if (!(res->name = xmalloc(strlen(args)+1)))
+		abort();
+	    strcpy(res->name, name);
+	}
+	else if (!strcmp(cmd, "reference"))
+	{
+	    char name[512];
+
+	    if (!sscanf(args, "%s", name))
+	    {
+		logf(LOG_WARN, "%s malformed reference directive in %s", file);
+		fclose(f);
+		return 0;
+	    }
+	    if ((res->reference = oid_getvalbyname(name)) == VAL_NONE)
+	    {
+		logf(LOG_WARN, "Unknown tagset ref '%s' in %s", name, file);
+		fclose(f);
+		return 0;
+	    }
+	}
+	else if (!strcmp(cmd, "type"))
+	{
+	    if (!sscanf(args, "%d", &res->type))
+	    {
+		logf(LOG_WARN, "%s malformed type directive in %s", file);
+		fclose(f);
+		return 0;
+	    }
+	}
+	else if (!strcmp(cmd, "include"))
+	{
+	    char name[512];
+
+	    if (!sscanf(args, "%s", name))
+	    {
+		logf(LOG_WARN, "%s malformed reference directive in %s", file);
+		fclose(f);
+		return 0;
+	    }
+	    if (!(*childp = data1_read_tagset(name)))
+	    {
+		logf(LOG_WARN, "Inclusion failed in %s", file);
+		fclose(f);
+		return 0;
+	    }
+	    childp = &(*childp)->next;
+	}
+	else
+	{
+	    logf(LOG_WARN, "Unknown directive '%s' in %s", cmd, file);
+	    fclose(f);
+	    return 0;
+	}
+    }
+}