summaryrefslogtreecommitdiffstats
path: root/rdf/base/rdfutil.cpp
diff options
context:
space:
mode:
authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /rdf/base/rdfutil.cpp
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
downloadUXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar
UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.gz
UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.lz
UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.xz
UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.zip
Add m-esr52 at 52.6.0
Diffstat (limited to 'rdf/base/rdfutil.cpp')
-rw-r--r--rdf/base/rdfutil.cpp111
1 files changed, 111 insertions, 0 deletions
diff --git a/rdf/base/rdfutil.cpp b/rdf/base/rdfutil.cpp
new file mode 100644
index 000000000..849072145
--- /dev/null
+++ b/rdf/base/rdfutil.cpp
@@ -0,0 +1,111 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/*
+
+ Implementations for a bunch of useful RDF utility routines. Many of
+ these will eventually be exported outside of RDF.DLL via the
+ nsIRDFService interface.
+
+ TO DO
+
+ 1) Make this so that it doesn't permanently leak the RDF service
+ object.
+
+ 2) Make container functions thread-safe. They currently don't ensure
+ that the RDF:nextVal property is maintained safely.
+
+ */
+
+#include "nsCOMPtr.h"
+#include "nsIRDFDataSource.h"
+#include "nsIRDFNode.h"
+#include "nsIRDFService.h"
+#include "nsIServiceManager.h"
+#include "nsIURL.h"
+#include "nsIIOService.h"
+#include "nsIURL.h"
+#include "nsRDFCID.h"
+#include "nsString.h"
+#include "nsXPIDLString.h"
+#include "nsUnicharUtils.h"
+#include "rdfutil.h"
+#include "prtime.h"
+
+////////////////////////////////////////////////////////////////////////
+
+nsresult
+rdf_MakeRelativeRef(const nsCSubstring& aBaseURI, nsCString& aURI)
+{
+ // This implementation is extremely simple: e.g., it can't compute
+ // relative paths, or anything fancy like that. If the context URI
+ // is not a prefix of the URI in question, we'll just bail.
+ uint32_t prefixLen = aBaseURI.Length();
+ if (prefixLen != 0 && StringBeginsWith(aURI, aBaseURI)) {
+ if (prefixLen < aURI.Length() && aURI.CharAt(prefixLen) == '/')
+ ++prefixLen; // chop the leading slash so it's not `absolute'
+
+ aURI.Cut(0, prefixLen);
+ }
+
+ return NS_OK;
+}
+
+void
+rdf_FormatDate(PRTime aTime, nsACString &aResult)
+{
+ // Outputs Unixish date in GMT plus usecs; e.g.,
+ // Wed Jan 9 19:15:13 2002 +002441
+ //
+ PRExplodedTime t;
+ PR_ExplodeTime(aTime, PR_GMTParameters, &t);
+
+ char buf[256];
+ PR_FormatTimeUSEnglish(buf, sizeof buf, "%a %b %d %H:%M:%S %Y", &t);
+ aResult.Append(buf);
+
+ // usecs
+ aResult.AppendLiteral(" +");
+ int32_t usec = t.tm_usec;
+ for (int32_t digit = 100000; digit > 1; digit /= 10) {
+ aResult.Append(char('0' + (usec / digit)));
+ usec %= digit;
+ }
+ aResult.Append(char('0' + usec));
+}
+
+PRTime
+rdf_ParseDate(const nsACString &aTime)
+{
+ PRTime t;
+ PR_ParseTimeString(PromiseFlatCString(aTime).get(), true, &t);
+
+ int32_t usec = 0;
+
+ nsACString::const_iterator begin, digit, end;
+ aTime.BeginReading(begin);
+ aTime.EndReading(end);
+
+ // Walk backwards until we find a `+', run out of string, or a
+ // non-numeric character.
+ digit = end;
+ while (--digit != begin && *digit != '+') {
+ if (*digit < '0' || *digit > '9')
+ break;
+ }
+
+ if (digit != begin && *digit == '+') {
+ // There's a usec field specified (or, at least, something
+ // that looks close enough. Parse it, and add it to the time.
+ while (++digit != end) {
+ usec *= 10;
+ usec += *digit - '0';
+ }
+
+ t += usec;
+ }
+
+ return t;
+}