-int parse_tree(struct lex_file *file) {
- struct parsenode *parsetree = NULL;
- struct parsenode *parseroot = NULL;
-
- /*
- * Allocate memory for our parse tree:
- * the parse tree is just a singly linked list which will contain
- * all the data for code generation.
- */
- if (!parseroot) {
- parseroot = mem_a(sizeof(struct parsenode));
- if (!parseroot)
- return error(ERROR_INTERNAL, "Ran out of memory", " ");
- parsetree = parseroot;
- parsetree->type = -1; /* not a valid type -- root element */
- }
-
- int token = 0;
- long line = 0;
- while ((token = lex_token(file)) != ERROR_LEX && \
- token != ERROR_COMPILER && \
- token != ERROR_INTERNAL && \
- token != ERROR_PARSE && \
- token != ERROR_PREPRO && file->length >= 0) {
- line = file->line;
- switch (token) {
- case TOKEN_TYPEDEF: {
- char *f; /* from */
- char *t; /* to */
-
- token = lex_token(file);
- token = lex_token(file); f = util_strdup(file->lastok);
- token = lex_token(file);
- token = lex_token(file); t = util_strdup(file->lastok);
-
- typedef_add(f, t);
- mem_d(f);
- mem_d(t);
-
- token = lex_token(file);
- if (token == ' ')
- token = lex_token(file);
-
- if (token != ';')
- error(ERROR_PARSE, "%s:%d Expected a `;` at end of typedef statement\n", file->name, file->line);
-
- token = lex_token(file);
- break;
- }
-
- case TOKEN_VOID: PARSE_TREE_ADD(PARSE_TYPE_VOID); goto fall;
- case TOKEN_STRING: PARSE_TREE_ADD(PARSE_TYPE_STRING); goto fall;
- case TOKEN_VECTOR: PARSE_TREE_ADD(PARSE_TYPE_VECTOR); goto fall;
- case TOKEN_ENTITY: PARSE_TREE_ADD(PARSE_TYPE_ENTITY); goto fall;
- case TOKEN_FLOAT: PARSE_TREE_ADD(PARSE_TYPE_FLOAT); goto fall;
- {
- fall:;
- char *name = NULL;
- int type = token; /* story copy */
-
- /* skip over space */
- token = lex_token(file);
- if (token == ' ')
- token = lex_token(file);
-
- /* save name */
- name = util_strdup(file->lastok);
-
- /* skip spaces */
- token = lex_token(file);
- if (token == ' ')
- token = lex_token(file);
-
- if (token == ';') {
- /*
- * Definitions go to the defs table, they don't have
- * any sort of data with them yet.
- */
- } else if (token == '=') {
- token = lex_token(file);
- if (token == ' ')
- token = lex_token(file);
-
- /* strings are in file->lastok */
- switch (type) {
- case TOKEN_VOID:
- return error(ERROR_PARSE, "%s:%d Cannot assign value to type void\n", file->name, file->line);
- case TOKEN_STRING:
- if (*file->lastok != '"')
- error(ERROR_PARSE, "%s:%d Expected a '\"' (quote) for string constant\n", file->name, file->line);
- break;
- case TOKEN_VECTOR: {
- float compile_calc_x = 0;
- float compile_calc_y = 0;
- float compile_calc_z = 0;
- int compile_calc_d = 0; /* dot? */
- int compile_calc_s = 0; /* sign (-, +) */
-
- char compile_data[1024];
- char *compile_eval = compile_data;
-
- if (token != '{')
- error(ERROR_PARSE, "%s:%d Expected initializer list `{`,`}` for vector constant\n", file->name, file->line);
-
- /*
- * This parses a single vector element: x,y & z. This will handle all the
- * complicated mechanics of a vector, and can be extended as well. This
- * is a rather large macro, and is #undef after it's use below.
- */
- #define PARSE_VEC_ELEMENT(NAME, BIT) \
- token = lex_token(file); \
- if (token == ' ') { \
- token = lex_token(file); \
- } \
- if (token == '.') { \
- compile_calc_d = 1; \
- } \
- if (!isdigit(token) && !compile_calc_d && token != '+' && token != '-') \
- error(ERROR_PARSE,"%s:%d Invalid constant initializer element %c for vector, must be numeric\n", file->name, file->line, NAME); \
- if (token == '+') { \
- compile_calc_s = '+'; \
- } \
- if (token == '-' && !compile_calc_s) { \
- compile_calc_s = '-'; \
- } \
- while (isdigit(token) || token == '.' || token == '+' || token == '-') { \
- *compile_eval++ = token; \
- token = lex_token(file); \
- if (token == '.' && compile_calc_d) { \
- error(ERROR_PARSE, "%s:%d Invalid constant initializer element %c for vector, must be numeric.\n", file->name, file->line, NAME); \
- token = lex_token(file); \
- } \
- if ((token == '-' || token == '+') && compile_calc_s) { \
- error(ERROR_PARSE, "%s:%d Invalid constant initializer sign for vector element %c\n", file->name, file->line, NAME); \
- token = lex_token(file); \
- } else if (token == '.' && !compile_calc_d) { \
- compile_calc_d = 1; \
- } else if (token == '-' && !compile_calc_s) { \
- compile_calc_s = '-'; \
- } else if (token == '+' && !compile_calc_s) { \
- compile_calc_s = '+'; \
- } \
- } \
- if (token == ' ') { \
- token = lex_token(file); \
- } \
- if (NAME != 'z') { \
- if (token != ',' && token != ' ') { \
- error(ERROR_PARSE, "%s:%d invalid constant initializer element %c for vector (missing spaces, or comma delimited list?)\n", NAME, file->name, file->line); \
- } \
- } else if (token != '}') { \
- error(ERROR_PARSE, "%s:%d Expected `}` on end of constant initialization for vector\n", file->name, file->line); \
- } \
- compile_calc_##BIT = atof(compile_data); \
- compile_calc_d = 0; \
- compile_calc_s = 0; \
- compile_eval = &compile_data[0]; \
+int parse_gen(struct lex_file *file) {
+ int token = 0;
+ while ((token = lex_token(file)) != ERROR_LEX && file->length >= 0) {
+ switch (token) {
+ case TOKEN_TYPEDEF: {
+ char *f; /* from */
+ char *t; /* to */
+
+ token = lex_token(file);
+ token = lex_token(file); f = util_strdup(file->lastok);
+ token = lex_token(file);
+ token = lex_token(file); t = util_strdup(file->lastok);
+
+ typedef_add(file, f, t);
+ mem_d(f);
+ mem_d(t);
+
+ token = lex_token(file);
+ if (token == ' ')
+ token = lex_token(file);
+
+ if (token != ';')
+ error(file, ERROR_PARSE, "Expected a `;` at end of typedef statement");
+
+ token = lex_token(file);
+ break;
+ }
+
+ case TOKEN_VOID: goto fall;
+ case TOKEN_STRING: goto fall;
+ case TOKEN_VECTOR: goto fall;
+ case TOKEN_ENTITY: goto fall;
+ case TOKEN_FLOAT: goto fall;
+ {
+ fall:;
+ char *name = NULL;
+ int type = token; /* story copy */
+
+ /* skip over space */
+ token = lex_token(file);
+ if (token == ' ')
+ token = lex_token(file);
+
+ /* save name */
+ name = util_strdup(file->lastok);
+
+ /* skip spaces */
+ token = lex_token(file);
+ if (token == ' ')
+ token = lex_token(file);
+
+ if (token == ';') {
+ /*
+ * Definitions go to the defs table, they don't have
+ * any sort of data with them yet.
+ */
+ } else if (token == '=') {
+ token = lex_token(file);
+ if (token == ' ')
+ token = lex_token(file);
+
+ /* strings are in file->lastok */
+ switch (type) {
+ case TOKEN_VOID:
+ error(file, ERROR_PARSE, "Cannot assign value to type void\n");
+
+ /* TODO: Validate (end quote), strip quotes for constant add, name constant */
+ case TOKEN_STRING:
+ if (*file->lastok != '"')
+ error(file, ERROR_PARSE, "Expected a '\"' (quote) for string constant\n");
+ /* add the compile-time constant */
+ compile_constants_add((constant){
+ .name = util_strdup(name),
+ .type = TYPE_STRING,
+ .value = {0,0,0},
+ .string = util_strdup(file->lastok)
+ });
+ break;
+ /* TODO: name constant, old qc vec literals, whitespace fixes, name constant */
+ case TOKEN_VECTOR: {
+ float compile_calc_x = 0;
+ float compile_calc_y = 0;
+ float compile_calc_z = 0;
+ int compile_calc_d = 0; /* dot? */
+ int compile_calc_s = 0; /* sign (-, +) */
+
+ char compile_data[1024];
+ char *compile_eval = compile_data;
+
+ if (token != '{')
+ error(file, ERROR_PARSE, "Expected initializer list {} for vector constant\n");
+
+ /*
+ * This parses a single vector element: x,y & z. This will handle all the
+ * complicated mechanics of a vector, and can be extended as well. This
+ * is a rather large macro, and is #undef'd after it's use below.
+ */
+ #define PARSE_VEC_ELEMENT(NAME, BIT) \
+ token = lex_token(file); \
+ if (token == ' ') \
+ token = lex_token(file); \
+ if (token == '.') \
+ compile_calc_d = 1; \
+ if (!isdigit(token) && !compile_calc_d && token != '+' && token != '-') \
+ error(file, ERROR_PARSE,"Invalid constant initializer element %c for vector, must be numeric\n", NAME); \
+ if (token == '+') \
+ compile_calc_s = '+'; \
+ if (token == '-' && !compile_calc_s) \
+ compile_calc_s = '-'; \
+ while (isdigit(token) || token == '.' || token == '+' || token == '-') { \
+ *compile_eval++ = token; \
+ token = lex_token(file); \
+ if (token == '.' && compile_calc_d) { \
+ error(file, ERROR_PARSE, "Invalid constant initializer element %c for vector, must be numeric.\n", NAME); \
+ token = lex_token(file); \
+ } \
+ if ((token == '-' || token == '+') && compile_calc_s) { \
+ error(file, ERROR_PARSE, "Invalid constant initializer sign for vector element %c\n", NAME); \
+ token = lex_token(file); \
+ } \
+ else if (token == '.' && !compile_calc_d) \
+ compile_calc_d = 1; \
+ else if (token == '-' && !compile_calc_s) \
+ compile_calc_s = '-'; \
+ else if (token == '+' && !compile_calc_s) \
+ compile_calc_s = '+'; \
+ } \
+ if (token == ' ') \
+ token = lex_token(file); \
+ if (NAME != 'z') { \
+ if (token != ',' && token != ' ') \
+ error(file, ERROR_PARSE, "invalid constant initializer element %c for vector (missing spaces, or comma delimited list?)\n", NAME); \
+ } else if (token != '}') { \
+ error(file, ERROR_PARSE, "Expected `}` on end of constant initialization for vector\n"); \
+ } \
+ compile_calc_##BIT = atof(compile_data); \
+ compile_calc_d = 0; \
+ compile_calc_s = 0; \
+ compile_eval = &compile_data[0]; \