X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/2ba3b73c587f277f726724af09b2db62932552f8..25b222faf6299aad314c11713561c7cbfc43a420:/src/reader.c?ds=sidebyside diff --git a/src/reader.c b/src/reader.c index d7145da7..5344837a 100644 --- a/src/reader.c +++ b/src/reader.c @@ -28,13 +28,14 @@ #include "files.h" #include "xalloc.h" #include "symtab.h" +#include "options.h" #include "lex.h" #include "gram.h" #include "complain.h" #include "output.h" #include "reader.h" #include "conflicts.h" -#include "macrotab.h" +#include "muscle_tab.h" /* Number of slots allocated (but not necessarily used yet) in `rline' */ static int rline_allocated; @@ -428,8 +429,11 @@ copy_definition (void) #if 0 if (!no_lines_flag) - obstack_fgrow2 (&attrs_obstack, "#line %d %s\n", - lineno, quotearg_style (c_quoting_style, infile)); + { + obstack_fgrow2 (&attrs_obstack, muscle_find ("linef"), + lineno, quotearg_style (c_quoting_style, + muscle_find("filename"))); + } #endif after_percent = 0; @@ -747,12 +751,16 @@ parse_union_decl (void) typed = 1; + if (!no_lines_flag) - obstack_fgrow2 (&attrs_obstack, "\n#line %d %s\n", - lineno, quotearg_style (c_quoting_style, infile)); + { + obstack_fgrow2 (&attrs_obstack, muscle_find ("linef"), + lineno, quotearg_style (c_quoting_style, + muscle_find("filename"))); + } else obstack_1grow (&attrs_obstack, '\n'); - + obstack_sgrow (&attrs_obstack, "typedef union"); if (defines_flag) obstack_sgrow (&defines_obstack, "typedef union"); @@ -902,11 +910,11 @@ parse_thong_decl (void) /* FIXME. */ static void -parse_macro_decl (void) +parse_muscle_decl (void) { int ch = ungetc (skip_white_space (), finput); - char* macro_key; - char* macro_value; + char* muscle_key; + char* muscle_value; /* Read key. */ if (!isalpha (ch) && ch != '_') @@ -915,9 +923,9 @@ parse_macro_decl (void) skip_to_char ('%'); return; } - copy_identifier (finput, ¯o_obstack); - obstack_1grow (¯o_obstack, 0); - macro_key = obstack_finish (¯o_obstack); + copy_identifier (finput, &muscle_obstack); + obstack_1grow (&muscle_obstack, 0); + muscle_key = obstack_finish (&muscle_obstack); /* Read value. */ ch = skip_white_space (); @@ -933,12 +941,12 @@ parse_macro_decl (void) else fatal (_("Premature EOF after %s"), "\""); } - copy_string2 (finput, ¯o_obstack, '"', 0); - obstack_1grow (¯o_obstack, 0); - macro_value = obstack_finish (¯o_obstack); + copy_string2 (finput, &muscle_obstack, '"', 0); + obstack_1grow (&muscle_obstack, 0); + muscle_value = obstack_finish (&muscle_obstack); /* Store the (key, value) pair in the environment. */ - macro_insert (macro_key, macro_value); + muscle_insert (muscle_key, muscle_value); } @@ -1060,7 +1068,7 @@ read_declarations (void) break; case tok_define: - parse_macro_decl (); + parse_muscle_decl (); break; case tok_skel: @@ -1105,14 +1113,13 @@ copy_action (symbol_list *rule, int stack_offset) if (semantic_parser) stack_offset = 0; - sprintf (buf, "\ncase %d:\n", nrules); - obstack_grow (&action_obstack, buf, strlen (buf)); + obstack_fgrow1 (&action_obstack, "\ncase %d:\n", nrules); if (!no_lines_flag) { - sprintf (buf, "#line %d %s\n", - lineno, quotearg_style (c_quoting_style, infile)); - obstack_grow (&action_obstack, buf, strlen (buf)); + obstack_fgrow2 (&action_obstack, muscle_find ("linef"), + lineno, quotearg_style (c_quoting_style, + muscle_find ("filename"))); } obstack_1grow (&action_obstack, '{'); @@ -1198,8 +1205,9 @@ copy_guard (symbol_list *rule, int stack_offset) obstack_fgrow1 (&guard_obstack, "\ncase %d:\n", nrules); if (!no_lines_flag) - obstack_fgrow2 (&guard_obstack, "#line %d %s\n", - lineno, quotearg_style (c_quoting_style, infile)); + obstack_fgrow2 (&guard_obstack, muscle_find ("linef"), + lineno, quotearg_style (c_quoting_style, + muscle_find ("filename"))); obstack_1grow (&guard_obstack, '{'); count = 0; @@ -1650,24 +1658,6 @@ readgram (void) if (nrules == 0) fatal (_("no rules in the input grammar")); -#if 0 /* This code is in the skeleton now. */ - /* JF put out same default YYSTYPE as YACC does */ - if (typed == 0 - && !value_components_used) - { - /* We used to use `unsigned long' as YYSTYPE on MSDOS, - but it seems better to be consistent. - Most programs should declare their own type anyway. */ - obstack_sgrow (&attrs_obstack, - "#ifndef YYSTYPE\n#define YYSTYPE int\n#endif\n"); - if (defines_flag) - obstack_sgrow (&defines_obstack, "\ -# ifndef YYSTYPE\n\ -# define YYSTYPE int\n\ -# endif\n"); - } -#endif - /* Report any undefined symbols and consider them nonterminals. */ for (bp = firstsymbol; bp; bp = bp->next) @@ -1684,21 +1674,21 @@ readgram (void) } /* At the end of the grammar file, some C source code must - be stored. It is going to be associated to the user_code + be stored. It is going to be associated to the epilogue directive. */ static void read_additionnal_code (void) { char c; - struct obstack uc_obstack; + struct obstack el_obstack; - obstack_init (&uc_obstack); + obstack_init (&el_obstack); while ((c = getc (finput)) != EOF) - obstack_1grow (&uc_obstack, c); + obstack_1grow (&el_obstack, c); - obstack_1grow (&uc_obstack, 0); - macro_insert ("user_code", obstack_finish (&uc_obstack)); + obstack_1grow (&el_obstack, 0); + muscle_insert ("epilogue", obstack_finish (&el_obstack)); } @@ -1747,8 +1737,6 @@ output_token_defines (struct obstack *oout) if (semantic_parser) obstack_fgrow2 (oout, "# define\tT%s\t%d\n", symbol, bp->value); } - - /* obstack_1grow (oout, '\n'); */ } @@ -1767,8 +1755,6 @@ packsymbols (void) int last_user_token_number; static char DOLLAR[] = "$"; - /* int lossage = 0; JF set but not used */ - tags = XCALLOC (char *, nsyms + 1); tags[0] = DOLLAR; user_toknums = XCALLOC (short, nsyms + 1); @@ -1872,10 +1858,12 @@ packsymbols (void) output_token_defines (&output_obstack); obstack_1grow (&output_obstack, 0); - macro_insert ("tokendef", obstack_finish (&output_obstack)); + muscle_insert ("tokendef", obstack_finish (&output_obstack)); - /* if (!no_parser_flag) - output_token_defines (&table_obstack); */ +#if 0 + if (!no_parser_flag) + output_token_defines (&table_obstack); +#endif if (startval->class == unknown_sym) fatal (_("the start symbol %s is undefined"), startval->tag); @@ -2022,8 +2010,8 @@ reader (void) init_lex (); lineno = 1; - /* Initialize the macro obstack. */ - obstack_init (¯o_obstack); + /* Initialize the muscle obstack. */ + obstack_init (&muscle_obstack); /* Initialize the symbol table. */ tabinit (); @@ -2043,27 +2031,16 @@ reader (void) TABLE_OBSTACK and FDEFINES file. Also notice any %token, %left, etc. found there. */ read_declarations (); - /* Start writing the guard and action files, if they are needed. */ -#if 0 - output_headers (); -#endif /* Read in the grammar, build grammar in list form. Write out guards and actions. */ readgram (); /* Some C code is given at the end of the grammar file. */ read_additionnal_code (); + /* Now we know whether we need the line-number stack. If we do, - write its type into the .tab.h file. */ -#if 0 - if (defines_flag) - reader_output_yylsp (&defines_obstack); -#endif - /* Write closing delimiters for actions and guards. */ -#if 0 - output_trailers (); - if (locations_flag) - obstack_sgrow (&table_obstack, "#define YYLSP_NEEDED 1\n\n"); -#endif + write its type into the .tab.h file. + This is no longer need with header skeleton. */ + /* Assign the symbols their symbol numbers. Write #defines for the token symbols into FDEFINES if requested. */ packsymbols ();