[PATCH vkd3d v2 1/4] vkd3d-shader: Parse #line directives.

[Zebediah Figura]

Signed-off-by: Zebediah Figura 
---
 libs/vkd3d-shader/preproc.l | 20 ++++++++++++++------
 libs/vkd3d-shader/preproc.y | 12 ++++++++++++
 2 files changed, 26 insertions(+), 6 deletions(-)

diff --git a/libs/vkd3d-shader/preproc.l b/libs/vkd3d-shader/preproc.l
index 1bf14ff4..0ce75f0e 100644
--- a/libs/vkd3d-shader/preproc.l
+++ b/libs/vkd3d-shader/preproc.l
@@ -52,6 +52,7 @@ static void update_location(struct preproc_ctx *ctx);

%s ERROR
 %s INCLUDE
+%s LINE

NEWLINE         \r?\n
 WS              [ \t]
@@ -91,9 +92,9 @@ IDENTIFIER      [A-Za-z_][A-Za-z0-9_]*
 <INITIAL>[0-9]+.([eE][+-]?[0-9]+)?[hHfF]?          {return T_TEXT;}
 <INITIAL>[0-9]+([eE][+-]?[0-9]+)?[hHfF]             {return T_TEXT;}
 <INITIAL>[0-9]+[eE][+-]?[0-9]+                      {return T_TEXT;}
-<INITIAL>0[xX][0-9a-fA-f]+[ul]{0,2}                 {return T_INTEGER;}
-<INITIAL>0[0-7]*[ul]{0,2}                           {return T_INTEGER;}
-<INITIAL>[1-9][0-9]*[ul]{0,2}                       {return T_INTEGER;}
+<INITIAL,LINE>0[xX][0-9a-fA-f]+[ul]{0,2}            {return T_INTEGER;}
+<INITIAL,LINE>0[0-7]*[ul]{0,2}                      {return T_INTEGER;}
+<INITIAL,LINE>[1-9][0-9]*[ul]{0,2}                  {return T_INTEGER;}

<INITIAL>##                         {return T_CONCAT;}

@@ -103,7 +104,7 @@ IDENTIFIER      [A-Za-z_][A-Za-z0-9_]*
 <INITIAL>">>"=?                     {return T_TEXT;}
 <INITIAL>[-+*/%&|^]=                {return T_TEXT;}

-<INCLUDE>"[^"]*"                  {return T_STRING;}
+<INCLUDE,LINE>"[^"]*"             {return T_STRING;}
 <INCLUDE><[^>]*>                  {return T_STRING;}

/* C strings (including escaped quotes). */
@@ -131,6 +132,12 @@ IDENTIFIER      [A-Za-z_][A-Za-z0-9_]*
             return T_INCLUDE;
         }

+        if (!strcmp(p, "line"))
+        {
+            BEGIN(LINE);
+            return T_LINE;
+        }
+
         if (!strcmp(p, "define"))
             return T_DEFINE;
         if (!strcmp(p, "elif"))
@@ -155,8 +162,8 @@ IDENTIFIER      [A-Za-z_][A-Za-z0-9_]*
         return T_TEXT;
     }

-<INITIAL,INCLUDE>\{NEWLINE}        {}
-<INITIAL,INCLUDE,ERROR>{NEWLINE}    {
+<INITIAL,INCLUDE,LINE>\{NEWLINE}       {}
+<INITIAL,INCLUDE,ERROR,LINE>{NEWLINE}   {
         BEGIN(INITIAL);
         return T_NEWLINE;
     }
@@ -371,6 +378,7 @@ int yylex(YYSTYPE *lval, YYLTYPE *lloc, yyscan_t scanner)
                     case T_IFDEF:
                     case T_IFNDEF:
                     case T_INCLUDE:
+                    case T_LINE:
                     case T_PRAGMA:
                     case T_UNDEF:
                         ctx->current_directive = token;
diff --git a/libs/vkd3d-shader/preproc.y b/libs/vkd3d-shader/preproc.y
index 7a995430..01437b2b 100644
--- a/libs/vkd3d-shader/preproc.y
+++ b/libs/vkd3d-shader/preproc.y
@@ -327,6 +327,7 @@ static void free_parse_arg_names(struct parse_arg_names *args)
 %token T_IFDEF "#ifdef"
 %token T_IFNDEF "#ifndef"
 %token T_INCLUDE "#include"
+%token T_LINE "#line"
 %token T_PRAGMA "#pragma"
 %token T_UNDEF "#undef"

@@ -671,6 +672,17 @@ directive
             }
             vkd3d_free($2);
         }
+    | T_LINE T_INTEGER T_NEWLINE
+        {
+            FIXME("#line directive.\n");
+            vkd3d_free($2);
+        }
+    | T_LINE T_INTEGER T_STRING T_NEWLINE
+        {
+            FIXME("#line directive.\n");
+            vkd3d_free($2);
+            vkd3d_free($3);
+        }

primary_expr
     : T_INTEGER