diff options
Diffstat (limited to 'jam-files/engine/hdrmacro.c')
-rw-r--r-- | jam-files/engine/hdrmacro.c | 137 |
1 files changed, 0 insertions, 137 deletions
diff --git a/jam-files/engine/hdrmacro.c b/jam-files/engine/hdrmacro.c deleted file mode 100644 index 43031d48..00000000 --- a/jam-files/engine/hdrmacro.c +++ /dev/null @@ -1,137 +0,0 @@ -/* - * Copyright 1993, 2000 Christopher Seiwald. - * - * This file is part of Jam - see jam.c for Copyright information. - */ - -/* This file is ALSO: - * Copyright 2001-2004 David Abrahams. - * Distributed under the Boost Software License, Version 1.0. - * (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt) - */ - -# include "jam.h" -# include "lists.h" -# include "parse.h" -# include "compile.h" -# include "rules.h" -# include "variable.h" -# include "regexp.h" -# include "hdrmacro.h" -# include "hash.h" -# include "newstr.h" -# include "strings.h" - -/* - * hdrmacro.c - handle header files that define macros used in - * #include statements. - * - * we look for lines like "#define MACRO <....>" or '#define MACRO " "' - * in the target file. When found, we - * - * we then phony up a rule invocation like: - * - * $(HDRRULE) <target> : <resolved included files> ; - * - * External routines: - * headers1() - scan a target for "#include MACRO" lines and try - * to resolve them when needed - * - * Internal routines: - * headers1() - using regexp, scan a file and build include LIST - * - * 04/13/94 (seiwald) - added shorthand L0 for null list pointer - * 09/10/00 (seiwald) - replaced call to compile_rule with evaluate_rule, - * so that headers() doesn't have to mock up a parse structure - * just to invoke a rule. - */ - -/* this type is used to store a dictionary of file header macros */ -typedef struct header_macro -{ - char * symbol; - char * filename; /* we could maybe use a LIST here ?? */ -} HEADER_MACRO; - -static struct hash * header_macros_hash = 0; - - -/* - * headers() - scan a target for include files and call HDRRULE - */ - -# define MAXINC 10 - -void -macro_headers( TARGET *t ) -{ - static regexp *re = 0; - FILE *f; - char buf[ 1024 ]; - - if ( DEBUG_HEADER ) - printf( "macro header scan for %s\n", t->name ); - - /* this regexp is used to detect lines of the form */ - /* "#define MACRO <....>" or "#define MACRO "....." */ - /* in the header macro files.. */ - if ( re == 0 ) - { - re = regex_compile( - "^[ ]*#[ ]*define[ ]*([A-Za-z][A-Za-z0-9_]*)[ ]*" - "[<\"]([^\">]*)[\">].*$" ); - } - - if ( !( f = fopen( t->boundname, "r" ) ) ) - return; - - while ( fgets( buf, sizeof( buf ), f ) ) - { - HEADER_MACRO var; - HEADER_MACRO *v = &var; - - if ( regexec( re, buf ) && re->startp[1] ) - { - /* we detected a line that looks like "#define MACRO filename */ - re->endp[1][0] = '\0'; - re->endp[2][0] = '\0'; - - if ( DEBUG_HEADER ) - printf( "macro '%s' used to define filename '%s' in '%s'\n", - re->startp[1], re->startp[2], t->boundname ); - - /* add macro definition to hash table */ - if ( !header_macros_hash ) - header_macros_hash = hashinit( sizeof( HEADER_MACRO ), "hdrmacros" ); - - v->symbol = re->startp[1]; - v->filename = 0; - if ( hashenter( header_macros_hash, (HASHDATA **)&v ) ) - { - v->symbol = newstr( re->startp[1] ); /* never freed */ - v->filename = newstr( re->startp[2] ); /* never freed */ - } - /* XXXX: FOR NOW, WE IGNORE MULTIPLE MACRO DEFINITIONS !! */ - /* WE MIGHT AS WELL USE A LIST TO STORE THEM.. */ - } - } - - fclose( f ); -} - - -char * macro_header_get( const char * macro_name ) -{ - HEADER_MACRO var; - HEADER_MACRO * v = &var; - - v->symbol = (char* )macro_name; - - if ( header_macros_hash && hashcheck( header_macros_hash, (HASHDATA **)&v ) ) - { - if ( DEBUG_HEADER ) - printf( "### macro '%s' evaluated to '%s'\n", macro_name, v->filename ); - return v->filename; - } - return 0; -} |