fix sv construct

Signed-off-by: lizzie <lizzie@eden-emu.dev>

src/core/file_sys/ips_layer.cpp

@@ -257,6 +257,7 @@ void IPSwitchCompiler::Parse(std::span<u8 const> bytes) {
                 // we dont check for "//", IPS checks for '/' only...
                 if ((!quote && p[0] == '/')
                 || (!quote && p[0] == '#')) {
+                    --p; //eat up the comment char
                     break;
                 } else if (p[0] == '\"' || p[0] == '\'') {
                     quote = (p[0] == quote) ? '\0' : p[0];
@@ -267,8 +268,11 @@ void IPSwitchCompiler::Parse(std::span<u8 const> bytes) {
                     ++p;
                 }
             }
+            // remove trailing
+            for (; p > sline.cbegin() && std::isspace(*p); --p)
+                ;
             // now we have the preprocessed string ;)
-            std::string_view pp_str(sline_start, p);
+            std::string_view pp_str(sline_start, (size_t)(p - sline_start));
             if (pp_str.size() > 0 && !parse_line(pp_str)) {
                 break;
             }