i3 - improved tiling WM

Respect workspace numbers when looking for a free workspace

Patch status: needinfo

Patch by Sebastian Ullrich

To apply this patch, use:
curl http://cr.i3wm.org/patch/200/raw.patch | git am

b/src/workspace.c

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@@ -197,17 +197,20 @@ Con *create_workspace_on_output(Output *output, Con *content) {
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         while (exists) {
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             c++;
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+            ws->num = c;
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             FREE(ws->name);
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             sasprintf(&(ws->name), "%d", c);
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             current = NULL;
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             TAILQ_FOREACH(out, &(croot->nodes_head), nodes)
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                 GREP_FIRST(current, output_get_content(out), !strcasecmp(child->name, ws->name));
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+            if (current == NULL)
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+                TAILQ_FOREACH(out, &(croot->nodes_head), nodes)
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+                    GREP_FIRST(current, output_get_content(out), child->num == ws->num);
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             exists = (current != NULL);
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             DLOG("result for ws %s / %d: exists = %d\n", ws->name, c, exists);
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         }
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-        ws->num = c;
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     }
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     con_attach(ws, content, false);
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