Fix help message in ildasm for Unix

ildasm -h contains a few broken message like "[Undefined resource string ID:0xCC]"
This is because we converted .rc file to a string table and SyntaxCon() enumerate all message ids while some of ids are ifdefedd out under FEATURE_PAL.
The fix is to define all the missing ids with empty string.

And also the indention (prefixed space) are all ignored except one.
Our trick (in awk script) to extract expression ID is to iterate argument string ($i) while setting it
to empty string to effectively delete the argument.
Unfortunately this has side-effect that normalizes all spaces between arguments to one space string.
The fix is to explicitly extract string content from the original string $0.

2 files changed, 25 insertions, 9 deletions

diff --git a/src/ildasm/dasm.rc b/src/ildasm/dasm.rc
index 9de2a73b64..cc45a895b6 100644
--- a/src/ildasm/dasm.rc
+++ b/src/ildasm/dasm.rc
@@ -297,10 +297,11 @@ BEGIN
     IDS_USAGE_05            L"Options for GUI or file/console output (EXE and DLL files only):\n"
 #else
     IDS_USAGE_03            L"  /OUT=<file name>    Direct output to file rather than to console.\n"
+    IDS_USAGE_04            L""
     IDS_USAGE_04A           L"  /HTML               Output in HTML format (valid with /OUT option only).\n"
     IDS_USAGE_04B           L"  /RTF                Output in rich text format (valid with /OUT option only).\n"
     IDS_USAGE_05            L"Options for file/console output:\n"
-#endif
+#endif // !FEATURE_PAL
 #ifdef OWNER_OPTION_ENABLED
     IDS_USAGE_06            L"  /OWNER=<owner name> Set owner name to disassemble a protected PE file.\n"
 #endif
@@ -326,7 +327,11 @@ BEGIN
     IDS_USAGE_16            L"  /NOBAR              Suppress disassembly progress bar window pop-up.\n\n"
     IDS_USAGE_17            L"The following options are valid for file/console output only:\n"
     IDS_USAGE_18            L"Options for EXE and DLL files:\n"
-#endif
+#else
+    IDS_USAGE_16            L""
+    IDS_USAGE_17            L""
+    IDS_USAGE_18            L""
+#endif // !FEATURE_PAL
     IDS_USAGE_19            L"  /UTF8               Use UTF-8 encoding for output (default - ANSI).\n"
     IDS_USAGE_20            L"  /UNICODE            Use UNICODE encoding for output.\n"
     IDS_USAGE_21            L"  /NOIL               Suppress IL assembler code output.\n"
@@ -344,7 +349,9 @@ BEGIN
     IDS_USAGE_26            L"  /ALL                Combination of /HEADER,/BYTES,/STATS,/CLASSLIST,/TOKENS\n\n"
 #ifndef FEATURE_PAL
     IDS_USAGE_27            L"Options for EXE,DLL,OBJ and LIB files:\n"
-#endif
+#else
+    IDS_USAGE_27            L""
+#endif // !FEATURE_PAL
     IDS_USAGE_28            L"  /METADATA[=<specifier>] Show MetaData, where <specifier> is:\n"
     IDS_USAGE_29            L"          MDHEADER    Show MetaData header information and sizes.\n"
     IDS_USAGE_30            L"          HEX         Show more things in hex as well as words.\n"
@@ -352,7 +359,9 @@ BEGIN
     IDS_USAGE_32            L"          UNREX       Show unresolved externals.\n"
 #ifndef FEATURE_PAL
     IDS_USAGE_33            L"          DEBUG       Show debug information in addition to other MetaData.\n"
-#endif
+#else
+    IDS_USAGE_33            L""
+#endif // !FEATURE_PAL
     IDS_USAGE_34            L"          SCHEMA      Show the MetaData header and schema information.\n"
     IDS_USAGE_35            L"          RAW         Show the raw MetaData tables.\n"
     IDS_USAGE_36            L"          HEAPS       Show the raw heaps.\n"
@@ -360,7 +369,10 @@ BEGIN
 #ifndef FEATURE_PAL
     IDS_USAGE_38            L"Options for LIB files only:\n"
     IDS_USAGE_39            L"  /OBJECTFILE=<obj_file_name> Show MetaData of a single object file in library\n"
-#endif
+#else
+    IDS_USAGE_38            L""
+    IDS_USAGE_39            L""
+#endif // !FEATURE_PAL
 END
 
 STRINGTABLE DISCARDABLE 
diff --git a/src/nativeresources/processrc.awk b/src/nativeresources/processrc.awk
index 1632753956..fcfd6e4f91 100644
--- a/src/nativeresources/processrc.awk
+++ b/src/nativeresources/processrc.awk
@@ -40,9 +40,9 @@ BEGIN {
             # some of the resource IDs have trailing L
             gsub(/L/, "", $i);
             expression = expression $i;
-            $i="";
             i++;
         }
+
         # evaluate the resource ID expression
         cmd = "echo $(("expression"))";
         cmd | getline var;
@@ -50,13 +50,17 @@ BEGIN {
         # in case shell returned the result as a string, ensure the var has numeric type
         var = var + 0;
 
+        # Extract string content starting with either " or L"
+        idx = match($0, /L?\"/);
+        content = substr($0, idx);
+
         # remove the L prefix from strings
-        gsub(/L"/, "\"", $0);
+        gsub(/L"/, "\"", content);
         # join strings "..." "..." into one
-        gsub(/" +"/, "", $0);
+        gsub(/" +"/, "", content);
 
         # write the resource entry to the target file
-        writestringentry(var, $0);
+        writestringentry(var, content);
     }
 }
 END {