-#ifndef GMQCC_LEXER_HDR_
-#define GMQCC_LEXER_HDR_
+/*
+ * Copyright (C) 2012, 2013
+ * Wolfgang Bumiller
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+ * of the Software, and to permit persons to whom the Software is furnished to do
+ * so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#ifndef GMQCC_LEXER_HDR
+#define GMQCC_LEXER_HDR
typedef struct token_s token;
-#include "ast.h"
-
struct token_s {
- int ttype;
+ int ttype;
- MEM_VECTOR_MAKE(char, value);
+ char *value;
- union {
- vector v;
- int i;
- double f;
- int t; /* type */
- } constval;
+ union {
+ vector v;
+ int i;
+ double f;
+ int t; /* type */
+ } constval;
- struct token_s *next;
- struct token_s *prev;
+#if 0
+ struct token_s *next;
+ struct token_s *prev;
+#endif
- lex_ctx ctx;
+ lex_ctx ctx;
};
+#if 0
token* token_new();
void token_delete(token*);
token* token_copy(const token *cp);
void token_delete_all(token *t);
token* token_copy_all(const token *cp);
+#endif
/* Lexer
*
TOKEN_KEYWORD, /* loop */
+ TOKEN_DOTS, /* 3 dots, ... */
+
+ TOKEN_ATTRIBUTE_OPEN, /* [[ */
+ TOKEN_ATTRIBUTE_CLOSE, /* ]] */
+
+ TOKEN_VA_ARGS, /* for the ftepp only */
+ TOKEN_VA_ARGS_ARRAY, /* for the ftepp only */
+ TOKEN_VA_COUNT, /* to get the count of vaargs */
+
TOKEN_STRINGCONST, /* not the typename but an actual "string" */
TOKEN_CHARCONST,
TOKEN_VECTORCONST,
TOKEN_INTCONST,
TOKEN_FLOATCONST,
- TOKEN_EOF,
+ TOKEN_WHITE,
+ TOKEN_EOL,
+
+ /* if we add additional tokens before this, the exposed API
+ * should not be broken anyway, but EOF/ERROR/... should
+ * still be at the bottom
+ */
+ TOKEN_EOF = 1024,
/* We use '< TOKEN_ERROR', so TOKEN_FATAL must come after it and any
* other error related tokens as well
TOKEN_FATAL /* internal error, eg out of memory */
};
-static const char *_tokennames[] = {
- "TOKEN_START",
- "TOKEN_IDENT",
- "TOKEN_TYPENAME",
- "TOKEN_OPERATOR",
- "TOKEN_KEYWORD",
- "TOKEN_STRINGCONST",
- "TOKEN_CHARCONST",
- "TOKEN_VECTORCONST",
- "TOKEN_INTCONST",
- "TOKEN_FLOATCONST",
- "TOKEN_EOF",
- "TOKEN_ERROR",
- "TOKEN_FATAL",
-};
-typedef int
-_all_tokennames_added_[
- ((TOKEN_FATAL - TOKEN_START + 1) ==
- (sizeof(_tokennames)/sizeof(_tokennames[0])))
- ? 1 : -1];
-
typedef struct {
- FILE *file;
- char *name;
- size_t line;
- size_t sline; /* line at the start of a token */
+ char *name;
+ int value;
+} frame_macro;
- char peek[256];
- size_t peekpos;
+typedef struct lex_file_s {
+ FILE *file;
+ const char *open_string;
+ size_t open_string_length;
+ size_t open_string_pos;
- token *tok;
+ char *name;
+ size_t line;
+ size_t sline; /* line at the start of a token */
- struct {
- bool noops;
- } flags;
-} lex_file;
+ int peek[256];
+ size_t peekpos;
+
+ bool eof;
+
+ token tok; /* not a pointer anymore */
+
+ struct {
+ bool noops;
+ bool nodigraphs; /* used when lexing string constants */
+ bool preprocessing; /* whitespace and EOLs become actual tokens */
+ bool mergelines; /* backslash at the end of a line escapes the newline */
+ } flags;
-MEM_VECTOR_PROTO(lex_file, char, token);
+ int framevalue;
+ frame_macro *frames;
+ char *modelname;
+
+ size_t push_line;
+} lex_file;
lex_file* lex_open (const char *file);
+lex_file* lex_open_string(const char *str, size_t len, const char *name);
void lex_close(lex_file *lex);
int lex_do (lex_file *lex);
+void lex_cleanup(void);
/* Parser
*
typedef struct {
const char *op;
+ unsigned int operands;
+ unsigned int id;
unsigned int assoc;
- unsigned int prec;
+ signed int prec;
unsigned int flags;
} oper_info;
-static const oper_info operators[] = {
- { "++", ASSOC_LEFT, 16, OP_SUFFIX},
- { "--", ASSOC_LEFT, 16, OP_SUFFIX},
+#define opid1(a) (a)
+#define opid2(a,b) ((a<<8)|b)
+#define opid3(a,b,c) ((a<<16)|(b<<8)|c)
- { ".", ASSOC_LEFT, 15, 0 },
+static const oper_info c_operators[] = {
+ { "(", 0, opid1('('), ASSOC_LEFT, 99, OP_PREFIX}, /* paren expression - non function call */
- { "!", ASSOC_RIGHT, 14, 0 },
- { "~", ASSOC_RIGHT, 14, 0 },
- { "+", ASSOC_RIGHT, 14, OP_PREFIX },
- { "-", ASSOC_RIGHT, 14, OP_PREFIX },
- { "++", ASSOC_RIGHT, 14, OP_PREFIX },
- { "--", ASSOC_RIGHT, 14, OP_PREFIX },
-/* { "&", ASSOC_RIGHT, 14, OP_PREFIX }, */
+ { "++", 1, opid3('S','+','+'), ASSOC_LEFT, 17, OP_SUFFIX},
+ { "--", 1, opid3('S','-','-'), ASSOC_LEFT, 17, OP_SUFFIX},
+ { ".", 2, opid1('.'), ASSOC_LEFT, 17, 0 },
+ { "(", 0, opid1('('), ASSOC_LEFT, 17, 0 }, /* function call */
+ { "[", 2, opid1('['), ASSOC_LEFT, 17, 0 }, /* array subscript */
- { "*", ASSOC_LEFT, 13, 0 },
- { "/", ASSOC_LEFT, 13, 0 },
- { "%", ASSOC_LEFT, 13, 0 },
+ { "++", 1, opid3('+','+','P'), ASSOC_RIGHT, 16, OP_PREFIX },
+ { "--", 1, opid3('-','-','P'), ASSOC_RIGHT, 16, OP_PREFIX },
- { "+", ASSOC_LEFT, 12, 0 },
- { "-", ASSOC_LEFT, 12, 0 },
+ { "**", 2, opid2('*', '*'), ASSOC_RIGHT, 15, 0 },
- { "<<", ASSOC_LEFT, 11, 0 },
- { ">>", ASSOC_LEFT, 11, 0 },
+ { "!", 1, opid2('!', 'P'), ASSOC_RIGHT, 14, OP_PREFIX },
+ { "~", 1, opid2('~', 'P'), ASSOC_RIGHT, 14, OP_PREFIX },
+ { "+", 1, opid2('+','P'), ASSOC_RIGHT, 14, OP_PREFIX },
+ { "-", 1, opid2('-','P'), ASSOC_RIGHT, 14, OP_PREFIX },
+/* { "&", 1, opid2('&','P'), ASSOC_RIGHT, 14, OP_PREFIX }, */
- { "<", ASSOC_LEFT, 10, 0 },
- { ">", ASSOC_LEFT, 10, 0 },
- { "<=", ASSOC_LEFT, 10, 0 },
- { ">=", ASSOC_LEFT, 10, 0 },
+ { "*", 2, opid1('*'), ASSOC_LEFT, 13, 0 },
+ { "/", 2, opid1('/'), ASSOC_LEFT, 13, 0 },
+ { "%", 2, opid1('%'), ASSOC_LEFT, 13, 0 },
- { "==", ASSOC_LEFT, 9, 0 },
- { "!=", ASSOC_LEFT, 9, 0 },
+ { "+", 2, opid1('+'), ASSOC_LEFT, 12, 0 },
+ { "-", 2, opid1('-'), ASSOC_LEFT, 12, 0 },
- { "&", ASSOC_LEFT, 8, 0 },
+ { "<<", 2, opid2('<','<'), ASSOC_LEFT, 11, 0 },
+ { ">>", 2, opid2('>','>'), ASSOC_LEFT, 11, 0 },
- { "^", ASSOC_LEFT, 7, 0 },
+ { "<", 2, opid1('<'), ASSOC_LEFT, 10, 0 },
+ { ">", 2, opid1('>'), ASSOC_LEFT, 10, 0 },
+ { "<=>", 2, opid3('<','=','>'), ASSOC_LEFT, 10, 0 },
+ { "<=", 2, opid2('<','='), ASSOC_LEFT, 10, 0 },
+ { ">=", 2, opid2('>','='), ASSOC_LEFT, 10, 0 },
- { "|", ASSOC_LEFT, 6, 0 },
+ { "==", 2, opid2('=','='), ASSOC_LEFT, 9, 0 },
+ { "!=", 2, opid2('!','='), ASSOC_LEFT, 9, 0 },
- { "&&", ASSOC_LEFT, 5, 0 },
+ { "&", 2, opid1('&'), ASSOC_LEFT, 8, 0 },
- { "||", ASSOC_LEFT, 4, 0 },
+ { "^", 2, opid1('^'), ASSOC_LEFT, 7, 0 },
- { "?", ASSOC_RIGHT, 3, 0 },
+ { "|", 2, opid1('|'), ASSOC_LEFT, 6, 0 },
- { "=", ASSOC_RIGHT, 2, 0 },
- { "+=", ASSOC_RIGHT, 2, 0 },
- { "-=", ASSOC_RIGHT, 2, 0 },
- { "*=", ASSOC_RIGHT, 2, 0 },
- { "/=", ASSOC_RIGHT, 2, 0 },
- { "%=", ASSOC_RIGHT, 2, 0 },
- { ">>=", ASSOC_RIGHT, 2, 0 },
- { "<<=", ASSOC_RIGHT, 2, 0 },
- { "&=", ASSOC_RIGHT, 2, 0 },
- { "^=", ASSOC_RIGHT, 2, 0 },
- { "|=", ASSOC_RIGHT, 2, 0 },
-};
+ { "&&", 2, opid2('&','&'), ASSOC_LEFT, 5, 0 },
-typedef struct
-{
- lex_file *lex;
- int error;
- lex_ctx ctx;
+ { "||", 2, opid2('|','|'), ASSOC_LEFT, 4, 0 },
- token *tokens;
- token *lastok;
+ { "?", 3, opid2('?',':'), ASSOC_RIGHT, 3, 0 },
- token *tok; /* current token */
+ { "=", 2, opid1('='), ASSOC_RIGHT, 2, 0 },
+ { "+=", 2, opid2('+','='), ASSOC_RIGHT, 2, 0 },
+ { "-=", 2, opid2('-','='), ASSOC_RIGHT, 2, 0 },
+ { "*=", 2, opid2('*','='), ASSOC_RIGHT, 2, 0 },
+ { "/=", 2, opid2('/','='), ASSOC_RIGHT, 2, 0 },
+ { "%=", 2, opid2('%','='), ASSOC_RIGHT, 2, 0 },
+ { ">>=", 2, opid3('>','>','='), ASSOC_RIGHT, 2, 0 },
+ { "<<=", 2, opid3('<','<','='), ASSOC_RIGHT, 2, 0 },
+ { "&=", 2, opid2('&','='), ASSOC_RIGHT, 2, 0 },
+ { "^=", 2, opid2('^','='), ASSOC_RIGHT, 2, 0 },
+ { "|=", 2, opid2('|','='), ASSOC_RIGHT, 2, 0 },
+ { "&~=", 2, opid3('&','~','='), ASSOC_RIGHT, 2, 0 },
- MEM_VECTOR_MAKE(ast_value*, globals);
-} parse_file;
+ { ":", 0, opid2(':','?'), ASSOC_RIGHT, 1, 0 },
-MEM_VECTOR_PROTO(parse_file, ast_value*, globals);
-
-parse_file* parse_open(const char *file);
-void parse_file_close(parse_file*);
-
-bool parse(parse_file*);
-
-bool parse_iskey(parse_file *self, const char *ident);
+ { ",", 2, opid1(','), ASSOC_LEFT, 0, 0 }
+};
+static const size_t c_operator_count = (sizeof(c_operators) / sizeof(c_operators[0]));
+
+static const oper_info fte_operators[] = {
+ { "(", 0, opid1('('), ASSOC_LEFT, 99, OP_PREFIX}, /* paren expression - non function call */
+
+ { "++", 1, opid3('S','+','+'), ASSOC_LEFT, 15, OP_SUFFIX},
+ { "--", 1, opid3('S','-','-'), ASSOC_LEFT, 15, OP_SUFFIX},
+ { ".", 2, opid1('.'), ASSOC_LEFT, 15, 0 },
+ { "(", 0, opid1('('), ASSOC_LEFT, 15, 0 }, /* function call */
+ { "[", 2, opid1('['), ASSOC_LEFT, 15, 0 }, /* array subscript */
+
+ { "!", 1, opid2('!', 'P'), ASSOC_RIGHT, 14, OP_PREFIX },
+ { "+", 1, opid2('+','P'), ASSOC_RIGHT, 14, OP_PREFIX },
+ { "-", 1, opid2('-','P'), ASSOC_RIGHT, 14, OP_PREFIX },
+ { "++", 1, opid3('+','+','P'), ASSOC_RIGHT, 14, OP_PREFIX },
+ { "--", 1, opid3('-','-','P'), ASSOC_RIGHT, 14, OP_PREFIX },
+
+ { "*", 2, opid1('*'), ASSOC_LEFT, 13, 0 },
+ { "/", 2, opid1('/'), ASSOC_LEFT, 13, 0 },
+ { "&", 2, opid1('&'), ASSOC_LEFT, 13, 0 },
+ { "|", 2, opid1('|'), ASSOC_LEFT, 13, 0 },
+
+ { "+", 2, opid1('+'), ASSOC_LEFT, 12, 0 },
+ { "-", 2, opid1('-'), ASSOC_LEFT, 12, 0 },
+
+ { "<<", 2, opid2('<','<'), ASSOC_LEFT, 11, 0 },
+ { ">>", 2, opid2('>','>'), ASSOC_LEFT, 11, 0 },
+
+ { "<", 2, opid1('<'), ASSOC_LEFT, 10, 0 },
+ { ">", 2, opid1('>'), ASSOC_LEFT, 10, 0 },
+ { "<=", 2, opid2('<','='), ASSOC_LEFT, 10, 0 },
+ { ">=", 2, opid2('>','='), ASSOC_LEFT, 10, 0 },
+ { "==", 2, opid2('=','='), ASSOC_LEFT, 10, 0 },
+ { "!=", 2, opid2('!','='), ASSOC_LEFT, 10, 0 },
+
+ { "?", 3, opid2('?',':'), ASSOC_RIGHT, 9, 0 },
+
+ { "=", 2, opid1('='), ASSOC_RIGHT, 8, 0 },
+ { "+=", 2, opid2('+','='), ASSOC_RIGHT, 8, 0 },
+ { "-=", 2, opid2('-','='), ASSOC_RIGHT, 8, 0 },
+ { "*=", 2, opid2('*','='), ASSOC_RIGHT, 8, 0 },
+ { "/=", 2, opid2('/','='), ASSOC_RIGHT, 8, 0 },
+ { "%=", 2, opid2('%','='), ASSOC_RIGHT, 8, 0 },
+ { "&=", 2, opid2('&','='), ASSOC_RIGHT, 8, 0 },
+ { "|=", 2, opid2('|','='), ASSOC_RIGHT, 8, 0 },
+ { "&~=", 2, opid3('&','~','='), ASSOC_RIGHT, 8, 0 },
+
+ { "&&", 2, opid2('&','&'), ASSOC_LEFT, 5, 0 },
+ { "||", 2, opid2('|','|'), ASSOC_LEFT, 5, 0 },
+
+ /* Leave precedence 3 for : with -fcorrect-ternary */
+ { ",", 2, opid1(','), ASSOC_LEFT, 2, 0 },
+ { ":", 0, opid2(':','?'), ASSOC_RIGHT, 1, 0 }
+};
+static const size_t fte_operator_count = (sizeof(fte_operators) / sizeof(fte_operators[0]));
+
+static const oper_info qcc_operators[] = {
+ { "(", 0, opid1('('), ASSOC_LEFT, 99, OP_PREFIX}, /* paren expression - non function call */
+
+ { ".", 2, opid1('.'), ASSOC_LEFT, 15, 0 },
+ { "(", 0, opid1('('), ASSOC_LEFT, 15, 0 }, /* function call */
+ { "[", 2, opid1('['), ASSOC_LEFT, 15, 0 }, /* array subscript */
+
+ { "!", 1, opid2('!', 'P'), ASSOC_RIGHT, 14, OP_PREFIX },
+ { "+", 1, opid2('+','P'), ASSOC_RIGHT, 14, OP_PREFIX },
+ { "-", 1, opid2('-','P'), ASSOC_RIGHT, 14, OP_PREFIX },
+
+ { "*", 2, opid1('*'), ASSOC_LEFT, 13, 0 },
+ { "/", 2, opid1('/'), ASSOC_LEFT, 13, 0 },
+ { "&", 2, opid1('&'), ASSOC_LEFT, 13, 0 },
+ { "|", 2, opid1('|'), ASSOC_LEFT, 13, 0 },
+
+ { "+", 2, opid1('+'), ASSOC_LEFT, 12, 0 },
+ { "-", 2, opid1('-'), ASSOC_LEFT, 12, 0 },
+
+ { "<", 2, opid1('<'), ASSOC_LEFT, 10, 0 },
+ { ">", 2, opid1('>'), ASSOC_LEFT, 10, 0 },
+ { "<=", 2, opid2('<','='), ASSOC_LEFT, 10, 0 },
+ { ">=", 2, opid2('>','='), ASSOC_LEFT, 10, 0 },
+ { "==", 2, opid2('=','='), ASSOC_LEFT, 10, 0 },
+ { "!=", 2, opid2('!','='), ASSOC_LEFT, 10, 0 },
+
+ { "=", 2, opid1('='), ASSOC_RIGHT, 8, 0 },
+ { "+=", 2, opid2('+','='), ASSOC_RIGHT, 8, 0 },
+ { "-=", 2, opid2('-','='), ASSOC_RIGHT, 8, 0 },
+ { "*=", 2, opid2('*','='), ASSOC_RIGHT, 8, 0 },
+ { "/=", 2, opid2('/','='), ASSOC_RIGHT, 8, 0 },
+ { "%=", 2, opid2('%','='), ASSOC_RIGHT, 8, 0 },
+ { "&=", 2, opid2('&','='), ASSOC_RIGHT, 8, 0 },
+ { "|=", 2, opid2('|','='), ASSOC_RIGHT, 8, 0 },
+
+ { "&&", 2, opid2('&','&'), ASSOC_LEFT, 5, 0 },
+ { "||", 2, opid2('|','|'), ASSOC_LEFT, 5, 0 },
+
+ { ",", 2, opid1(','), ASSOC_LEFT, 2, 0 },
+};
+static const size_t qcc_operator_count = (sizeof(qcc_operators) / sizeof(qcc_operators[0]));
+extern const oper_info *operators;
+extern size_t operator_count;
void lexerror(lex_file*, const char *fmt, ...);
#endif
projects / xonotic / gmqcc.git / blobdiff