1 files changed, 80 insertions, 0 deletions
diff --git a/common/kernel/idstringlist.cc b/common/kernel/idstringlist.cc
new file mode 100644
index 00000000..624622cf
--- /dev/null
+++ b/common/kernel/idstringlist.cc
@@ -0,0 +1,80 @@
+/*
+ *  nextpnr -- Next Generation Place and Route
+ *
+ *  Copyright (C) 2018  Claire Xenia Wolf <claire@yosyshq.com>
+ *  Copyright (C) 2018  Serge Bazanski <q3k@q3k.org>
+ *
+ *  Permission to use, copy, modify, and/or distribute this software for any
+ *  purpose with or without fee is hereby granted, provided that the above
+ *  copyright notice and this permission notice appear in all copies.
+ *
+ *  THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ *  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ *  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ *  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ *  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ *  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ *  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ */
+
+#include "idstringlist.h"
+#include "context.h"
+
+NEXTPNR_NAMESPACE_BEGIN
+
+IdStringList IdStringList::parse(Context *ctx, const std::string &str)
+{
+    char delim = ctx->getNameDelimiter();
+    size_t id_count = std::count(str.begin(), str.end(), delim) + 1;
+    IdStringList list(id_count);
+    size_t start = 0;
+    for (size_t i = 0; i < id_count; i++) {
+        size_t end = str.find(delim, start);
+        NPNR_ASSERT((i == (id_count - 1)) || (end != std::string::npos));
+        list.ids[i] = ctx->id(str.substr(start, end - start));
+        start = end + 1;
+    }
+    return list;
+}
+
+void IdStringList::build_str(const Context *ctx, std::string &str) const
+{
+    char delim = ctx->getNameDelimiter();
+    bool first = true;
+    str.clear();
+    for (auto entry : ids) {
+        if (!first)
+            str += delim;
+        str += entry.str(ctx);
+        first = false;
+    }
+}
+
+std::string IdStringList::str(const Context *ctx) const
+{
+    std::string s;
+    build_str(ctx, s);
+    return s;
+}
+
+IdStringList IdStringList::concat(IdStringList a, IdStringList b)
+{
+    IdStringList result(a.size() + b.size());
+    for (size_t i = 0; i < a.size(); i++)
+        result.ids[i] = a[i];
+    for (size_t i = 0; i < b.size(); i++)
+        result.ids[a.size() + i] = b[i];
+    return result;
+}
+
+IdStringList IdStringList::slice(size_t s, size_t e) const
+{
+    NPNR_ASSERT(e >= s);
+    IdStringList result(e - s);
+    for (size_t i = 0; i < result.size(); i++)
+        result.ids[i] = ids[s + i];
+    return result;
+}
+
+NEXTPNR_NAMESPACE_END