X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/82e236e2d66e4876663586d30a44ebb57f9cdf6c..e9955c83:/src/reader.h diff --git a/src/reader.h b/src/reader.h index 7cdd6941..6311fe86 100644 --- a/src/reader.h +++ b/src/reader.h @@ -1,5 +1,5 @@ /* Input parser for bison - Copyright 2000 Free Software Foundation, Inc. + Copyright (C) 2000, 2001, 2002 Free Software Foundation, Inc. This file is part of Bison, the GNU Compiler Compiler. @@ -21,21 +21,92 @@ #ifndef READER_H_ # define READER_H_ -/* Read in the grammar specification and record it in the format - described in gram.h. All guards are copied into the FGUARD file - and all actions into FACTION, in each case forming the body of a C - function (YYGUARD or YYACTION) which contains a switch statement to - decide which guard or action to execute. */ +typedef struct symbol_list +{ + struct symbol_list *next; + symbol_t *sym; + int line; -extern void reader PARAMS ((void)); + /* The action is attached to the LHS of a rule. */ + const char *action; + int action_line; + symbol_t *ruleprec; +} symbol_list; -extern void reader_output_yylsp PARAMS ((struct obstack *)); +# include "parse-gram.h" -extern int lineno; -extern char **tags; -extern short *user_toknums; +typedef int location_t; -extern struct obstack macro_obstack; +/* Initialize LOC. */ +# define LOCATION_RESET(Loc) \ + (Loc).first_column = (Loc).first_line = 1; \ + (Loc).last_column = (Loc).last_line = 1; + +/* Advance of NUM columns. */ +# define LOCATION_COLUMNS(Loc, Num) \ + (Loc).last_column += Num; + +/* Advance of NUM lines. */ +# define LOCATION_LINES(Loc, Num) \ + (Loc).last_column = 1; \ + (Loc).last_line += Num; + +/* Restart: move the first cursor to the last position. */ +# define LOCATION_STEP(Loc) \ + (Loc).first_column = (Loc).last_column; \ + (Loc).first_line = (Loc).last_line; + +/* Output LOC on the stream OUT. */ +# define LOCATION_PRINT(Out, Loc) \ + fprintf (stderr, "%s:", infile); \ + if ((Loc).first_line != (Loc).last_line) \ + fprintf (Out, "%d.%d-%d.%d", \ + (Loc).first_line, (Loc).first_column, \ + (Loc).last_line, (Loc).last_column - 1); \ + else if ((Loc).first_column < (Loc).last_column - 1) \ + fprintf (Out, "%d.%d-%d", (Loc).first_line, \ + (Loc).first_column, (Loc).last_column - 1); \ + else \ + fprintf (Out, "%d.%d", (Loc).first_line, (Loc).first_column) + +typedef struct gram_control_s +{ + int errcode; +} gram_control_t; + +/* From the scanner. */ +extern FILE *gram_in; +extern int gram__flex_debug; + +# define YY_DECL \ + int gram_lex (yystype *yylval, yyltype *yylloc, \ + gram_control_t *yycontrol) +YY_DECL; + + +/* From the parser. */ +extern int gram_debug; +void gram_error (gram_control_t *control, + yyltype *loc, const char *msg); +int gram_parse (void *control); + +char *get_type_name PARAMS ((int n, symbol_list *rule)); +extern int typed; + +/* From reader.c. */ +void grammar_start_symbol_set PARAMS ((symbol_t *s)); +void prologue_augment PARAMS ((const char *prologue, location_t location)); +void epilogue_set PARAMS ((const char *epilogue, location_t location)); +void grammar_symbol_append PARAMS ((symbol_t *s)); +void grammar_rule_begin PARAMS ((symbol_t *lhs)); +void grammar_rule_end PARAMS ((void)); +void grammar_midrule_action PARAMS ((void)); +void grammar_current_rule_prec_set PARAMS ((symbol_t *precsym)); +void grammar_current_rule_symbol_append PARAMS ((symbol_t *symbol)); +void grammar_current_rule_action_append PARAMS ((const char *action, + int line)); +extern symbol_list *current_rule; +void reader PARAMS ((void)); #endif /* !READER_H_ */