1 files changed, 171 insertions, 0 deletions
diff --git a/libs/rs/spec.lex b/libs/rs/spec.lex
new file mode 100644
index 0000000..0f8e9ab
--- /dev/null
+++ b/libs/rs/spec.lex
@@ -0,0 +1,171 @@
+%option stack
+
+%x comment
+%x api_entry
+%x api_entry2
+%x api_entry_param
+%x var_type
+
+DIGIT    [0-9]
+ID       [a-zA-Z_][a-zA-Z0-9_]*
+
+
+   int num_lines = 0;
+
+   typedef struct {
+      int isConst;
+      int type;
+      int bits;
+      int ptrLevel;
+      char name[256];
+      char typename[256];
+   } VarType;
+
+   VarType *currType = 0;
+
+   typedef struct {
+      char name[256];
+      int sync;
+      int paramCount;
+      VarType ret;
+      VarType params[16];
+   } ApiEntry;
+
+   ApiEntry apis[128];
+   int apiCount = 0;
+
+   int typeNextState;
+
+%%
+
+"/*"         BEGIN(comment);
+<comment>[^*\n]*        /* eat anything that's not a '*' */
+<comment>"*"+[^*/\n]*   /* eat up '*'s not followed by '/'s */
+<comment>\n             ++num_lines;
+<comment>"*"+"/"        BEGIN(INITIAL);
+
+<*>" "   //printf("found ' '\n");
+<*>"\n"  ++num_lines; //printf("found lf \n");
+
+{ID} {
+    memset(&apis[apiCount], 0, sizeof(ApiEntry));
+    memcpy(apis[apiCount].name, yytext, yyleng);
+    BEGIN(api_entry);
+    }
+
+<api_entry>"{" {
+    BEGIN(api_entry2);
+    }
+
+<api_entry2>"sync" {
+    apis[apiCount].sync = 1;
+    }
+
+<api_entry2>"ret" {
+    currType = &apis[apiCount].ret;
+    typeNextState = api_entry2;
+    BEGIN(var_type);
+    }
+
+<api_entry2>"param" {
+    currType = &apis[apiCount].params[apis[apiCount].paramCount];
+    apis[apiCount].paramCount++;
+    typeNextState = api_entry_param;
+    BEGIN(var_type);
+    }
+
+<var_type>"const" {
+    currType->isConst = 1;
+    }
+
+<var_type>"i8" {
+    currType->type = 1;
+    currType->bits = 8;
+    BEGIN(typeNextState);
+    }
+
+<var_type>"i16" {
+    currType->type = 1;
+    currType->bits = 16;
+    BEGIN(typeNextState);
+    }
+
+<var_type>"i32" {
+    currType->type = 1;
+    currType->bits = 32;
+    BEGIN(typeNextState);
+    }
+
+<var_type>"i64" {
+    currType->type = 1;
+    currType->bits = 64;
+    BEGIN(typeNextState);
+    }
+
+<var_type>"u8" {
+    currType->type = 2;
+    currType->bits = 8;
+    BEGIN(typeNextState);
+    }
+
+<var_type>"u16" {
+    currType->type = 2;
+    currType->bits = 16;
+    BEGIN(typeNextState);
+    }
+
+<var_type>"u32" {
+    currType->type = 2;
+    currType->bits = 32;
+    BEGIN(typeNextState);
+    }
+
+<var_type>"u64" {
+    currType->type = 2;
+    currType->bits = 64;
+    BEGIN(typeNextState);
+    }
+
+<var_type>"f" {
+    currType->type = 3;
+    currType->bits = 32;
+    BEGIN(typeNextState);
+    }
+
+<var_type>"d" {
+    currType->type = 3;
+    currType->bits = 64;
+    BEGIN(typeNextState);
+    }
+
+<var_type>{ID} {
+    currType->type = 4;
+    currType->bits = 32;
+    memcpy(currType->typename, yytext, yyleng);
+    BEGIN(typeNextState);
+    }
+
+<api_entry_param>"*" {
+    currType->ptrLevel ++;
+    }
+
+<api_entry_param>{ID} {
+    memcpy(currType->name, yytext, yyleng);
+    BEGIN(api_entry2);
+    }
+
+
+<api_entry2>"}" {
+    apiCount++;
+    BEGIN(INITIAL);
+    }
+
+
+%%
+
+
+int yywrap()
+{
+    return 1;
+}
+