X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/f0130d39ffc121cdcc441feee81b521df6e7c35c..ad949da96bf5621185a28f354c08f4595bc42952:/src/files.c?ds=sidebyside diff --git a/src/files.c b/src/files.c index 033d2816..0b958c1a 100644 --- a/src/files.c +++ b/src/files.c @@ -22,23 +22,23 @@ #include "system.h" #include "getargs.h" #include "files.h" -#include "xalloc.h" #include "gram.h" +#include "error.h" #include "complain.h" FILE *finput = NULL; struct obstack action_obstack; struct obstack attrs_obstack; -struct obstack table_obstack; -struct obstack defines_obstack; -struct obstack guard_obstack; struct obstack output_obstack; -struct obstack graph_obstack; char *spec_outfile = NULL; /* for -o. */ char *spec_file_prefix = NULL; /* for -b. */ -char *spec_name_prefix = NULL; /* for -p. */ +const char *spec_name_prefix = "yy"; /* for -p. */ +char *spec_verbose_file = NULL; /* for --verbose. */ +char *spec_graph_file = NULL; /* for -g. */ +char *spec_defines_file = NULL; /* for --defines. */ +char *parser_file_name = NULL; char *infile = NULL; char *attrsfile = NULL; @@ -84,6 +84,49 @@ stringappend (const char *string1, const char *string2) return res; } + +/*-----------------------------------------------------------------. +| Computes the macro name used to avoid double inclusion in the | +| header of the parser and store it in header_macro_name. Be sure | +| to produce valid CPP names (don't start with digit, remain | +| alphanumerical + underscore). | +`-----------------------------------------------------------------*/ + +char * +compute_header_macro (void) +{ + const char *prefix = "BISON_"; + char *macro_name, *cp; + + if (spec_defines_file) + { + macro_name = XMALLOC (char, + strlen (prefix) + + strlen (spec_defines_file) + 1); + cp = stpcpy (macro_name, prefix); + cp = stpcpy (cp, spec_defines_file); + } + else + { + macro_name = XMALLOC (char, + strlen (prefix) + + strlen (base_name) + + strlen (header_extension) + 1); + cp = stpcpy (macro_name, prefix); + cp = stpcpy (cp, base_name); + cp = stpcpy (cp, header_extension); + } + + for (cp = macro_name; *cp; ++cp) + if (islower (*cp)) + *cp = toupper (*cp); + else if (!isalnum (*cp)) + *cp = '_'; + + return macro_name; +} + + /*-----------------------------------------------------------------. | Try to open file NAME with mode MODE, and print an error message | | if fails. | @@ -120,19 +163,6 @@ xfclose (FILE *ptr) return result; } -/*--------------------------------------------------. -| Save the content of the obstack OBS in FILENAME. | -`--------------------------------------------------*/ - -static void -obstack_save (struct obstack *obs, const char *filename) -{ - FILE *out = xfopen (filename, "w"); - size_t size = obstack_object_size (obs); - fwrite (obstack_finish (obs), 1, size, out); - xfclose (out); -} - /*------------------------------------------------------------------. | Return the path to the skeleton which locaction might be given in | @@ -144,17 +174,42 @@ skeleton_find (const char *envvar, const char *skeleton_name) { const char *res = getenv (envvar); -#ifdef MSDOS - const char *cp; - - /* File doesn't exist in current directory; try in INIT directory. */ - if (!res && (cp = getenv ("INIT"))) +#if defined (MSDOS) || defined (_WIN32) + if (!res) { - res = XMALLOC (char, strlen (cp) + strlen (skeleton_name) + 2); - sprintf (res, "%s%c%s", cp, '/', skeleton_name); + /* Skeleton file name without path */ + const char *skel_name = strrchr (skeleton_name, '/'); + if (!skel_name) + skel_name = strrchr (skeleton_name, '\\'); + if (!skel_name) + skel_name = skeleton_name; + else + ++skel_name; + + /* File doesn't exist in current directory; try in INIT directory. */ + const char *cp = getenv ("INIT"); + if (cp) + { + res = XMALLOC (char, strlen (cp) + strlen (skel_name) + 2); + sprintf (res, "%s%c%s", cp, '\\', skel_name); + } + else if (access (skel_name, 4) == 0) /* Look in current dir. */ + res = skel_name; + else + { + /* Look in program locations dir. */ + extern char *program_name; + cp = strrchr(program_name, '\\'); + if (!cp) + return skeleton_name; + else + ++cp; + res = XMALLOC (char, cp - program_name + strlen (skel_name) + 1); + strncpy (res, program_name, cp - program_name); + strcpy (res + (cp - program_name), skel_name); + } } -#endif /* !MSDOS */ - +#endif /* defined (MSDOS) || defined (_WIN32) */ if (!res) res = skeleton_name; @@ -210,20 +265,10 @@ get_extension_index (const char *filename) static void compute_exts_from_gf (const char *ext) { - /* Checks if SRC_EXTENSION is NULL. In the other case, %source_extension - was specified in the grammar file. */ - if (src_extension == NULL) - { - src_extension = tr (ext, 'y', 'c'); - src_extension = tr (src_extension, 'Y', 'C'); - } - /* Checks if HEADER_EXTENSION is NULL. In the other case, - %header_extension was specified in the grammar file. */ - if (header_extension == NULL) - { - header_extension = tr (ext, 'y', 'h'); - header_extension = tr (header_extension, 'Y', 'H'); - } + src_extension = tr (ext, 'y', 'c'); + src_extension = tr (src_extension, 'Y', 'C'); + header_extension = tr (ext, 'y', 'h'); + header_extension = tr (header_extension, 'Y', 'H'); } /* Computes extensions from the given c source file extension. */ @@ -345,85 +390,36 @@ compute_base_names (void) } } -/*-----------------------------------------------------------------. -| Open the input file. Look for the skeletons. Find the names of | -| the output files. Prepare the obstacks. | -`-----------------------------------------------------------------*/ - -void -open_files (void) -{ - finput = xfopen (infile, "r"); - - /* Initialize the obstacks. */ - obstack_init (&action_obstack); - obstack_init (&attrs_obstack); - obstack_init (&table_obstack); - obstack_init (&defines_obstack); - obstack_init (&guard_obstack); - obstack_init (&output_obstack); - obstack_init (&graph_obstack); -} - - - -/*-----------------------------------------------------. -| Close the open files, produce all the output files. | -`-----------------------------------------------------*/ +/*-------------------------------------------------------. +| Close the open files, compute the output files names. | +`-------------------------------------------------------*/ void -output_files (void) +compute_output_file_names (void) { - xfclose (finput); - compute_base_names (); - /* Set default extensions */ + parser_file_name = + spec_outfile ? spec_outfile : stringappend (base_name, src_extension); + + /* If not yet done. */ if (!src_extension) src_extension = ".c"; if (!header_extension) header_extension = ".h"; - attrsfile = stringappend (short_base_name, EXT_STYPE_H); -#ifndef MSDOS - stringappend (attrsfile, header_extension); -#endif /* MSDOS */ - - /* Output the main file. */ - if (spec_outfile) - obstack_save (&table_obstack, spec_outfile); - else - obstack_save (&table_obstack, stringappend (base_name, src_extension)); - - /* Output the header file if wanted. */ - if (defines_flag) - obstack_save (&defines_obstack, - stringappend (base_name, header_extension)); + /* It the defines filename if not given, we create it. */ + if (!spec_defines_file) + spec_defines_file = stringappend (base_name, header_extension); - /* If we output only the table, dump the actions in ACTFILE. */ - if (no_parser_flag) - obstack_save (&action_obstack, stringappend (short_base_name, ".act")); + /* It the graph filename if not given, we create it. */ + if (!spec_graph_file) + spec_graph_file = stringappend (short_base_name, ".vcg"); - /* If we produced a semantic parser ATTRS_OBSTACK must be dumped - into its own file, ATTTRSFILE. */ - if (semantic_parser) - { - char *temp_name; + spec_verbose_file = stringappend (short_base_name, EXT_OUTPUT); - obstack_save (&attrs_obstack, attrsfile); - temp_name = stringappend (short_base_name, EXT_GUARD_C); + attrsfile = stringappend (short_base_name, EXT_STYPE_H); #ifndef MSDOS - temp_name = stringappend (temp_name, src_extension); + attrsfile = stringappend (attrsfile, header_extension); #endif /* MSDOS */ - obstack_save (&guard_obstack, temp_name); - } - - if (verbose_flag) - /* We used to use just .out if spec_name_prefix (-p) was used, but - that conflicts with Posix. */ - obstack_save (&output_obstack, - stringappend (short_base_name, EXT_OUTPUT)); - - if (graph_flag) - obstack_save (&graph_obstack, stringappend (short_base_name, ".vcg")); }