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+/*
+ * Copyright 1993-2002 Christopher Seiwald and Perforce Software, Inc.
+ *
+ * This file is part of Jam - see jam.c for Copyright information.
+ */
+
+#include "jam.h"
+
+#include "lists.h"
+#include "parse.h"
+#include "builtins.h"
+#include "rules.h"
+#include "filesys.h"
+#include "newstr.h"
+#include "regexp.h"
+#include "frames.h"
+#include "hash.h"
+#include "strings.h"
+#include "pwd.h"
+#include "pathsys.h"
+#include "make.h"
+#include "hdrmacro.h"
+#include "compile.h"
+#include "native.h"
+#include "variable.h"
+#include "timestamp.h"
+#include "md5.h"
+#include <ctype.h>
+
+#if defined(USE_EXECUNIX)
+# include <sys/types.h>
+# include <sys/wait.h>
+#else
+/*
+ NT does not have wait() and associated macros, it uses the return value
+ of system() instead. Status code group are documented at
+ http://msdn.microsoft.com/en-gb/library/ff565436.aspx
+*/
+# define WIFEXITED(w) (((w) & 0XFFFFFF00) == 0)
+# define WEXITSTATUS(w)(w)
+#endif
+
+/*
+ * builtins.c - builtin jam rules
+ *
+ * External routines:
+ *
+ * load_builtin() - define builtin rules
+ *
+ * Internal routines:
+ *
+ * builtin_depends() - DEPENDS/INCLUDES rule.
+ * builtin_echo() - ECHO rule.
+ * builtin_exit() - EXIT rule.
+ * builtin_flags() - NOCARE, NOTFILE, TEMPORARY rule.
+ * builtin_glob() - GLOB rule.
+ * builtin_match() - MATCH rule.
+ *
+ * 01/10/01 (seiwald) - split from compile.c
+ */
+
+
+/*
+ * compile_builtin() - define builtin rules
+ */
+
+#define P0 (PARSE *)0
+#define C0 (char *)0
+
+#if defined( OS_NT ) || defined( OS_CYGWIN )
+ LIST * builtin_system_registry ( PARSE *, FRAME * );
+ LIST * builtin_system_registry_names( PARSE *, FRAME * );
+#endif
+
+int glob( char * s, char * c );
+
+void backtrace ( FRAME * );
+void backtrace_line ( FRAME * );
+void print_source_line( PARSE * );
+
+
+RULE * bind_builtin( char * name, LIST * (* f)( PARSE *, FRAME * ), int flags, char * * args )
+{
+ argument_list* arg_list = 0;
+
+ if ( args )
+ {
+ arg_list = args_new();
+ lol_build( arg_list->data, args );
+ }
+
+ return new_rule_body( root_module(), name, arg_list,
+ parse_make( f, P0, P0, P0, C0, C0, flags ), 1 );
+}
+
+
+RULE * duplicate_rule( char * name, RULE * other )
+{
+ return import_rule( other, root_module(), name );
+}
+
+
+void load_builtins()
+{
+ duplicate_rule( "Always",
+ bind_builtin( "ALWAYS",
+ builtin_flags, T_FLAG_TOUCHED, 0 ) );
+
+ duplicate_rule( "Depends",
+ bind_builtin( "DEPENDS",
+ builtin_depends, 0, 0 ) );
+
+ duplicate_rule( "echo",
+ duplicate_rule( "Echo",
+ bind_builtin( "ECHO",
+ builtin_echo, 0, 0 ) ) );
+
+ {
+ char * args[] = { "message", "*", ":", "result-value", "?", 0 };
+ duplicate_rule( "exit",
+ duplicate_rule( "Exit",
+ bind_builtin( "EXIT",
+ builtin_exit, 0, args ) ) );
+ }
+
+ {
+ char * args[] = { "directories", "*", ":", "patterns", "*", ":", "case-insensitive", "?", 0 };
+ duplicate_rule( "Glob",
+ bind_builtin( "GLOB", builtin_glob, 0, args ) );
+ }
+
+ {
+ char * args[] = { "patterns", "*", 0 };
+ bind_builtin( "GLOB-RECURSIVELY",
+ builtin_glob_recursive, 0, args );
+ }
+
+ duplicate_rule( "Includes",
+ bind_builtin( "INCLUDES",
+ builtin_depends, 1, 0 ) );
+
+ {
+ char * args[] = { "targets", "*", ":", "targets-to-rebuild", "*", 0 };
+ bind_builtin( "REBUILDS",
+ builtin_rebuilds, 0, args );
+ }
+
+ duplicate_rule( "Leaves",
+ bind_builtin( "LEAVES",
+ builtin_flags, T_FLAG_LEAVES, 0 ) );
+
+ duplicate_rule( "Match",
+ bind_builtin( "MATCH",
+ builtin_match, 0, 0 ) );
+
+ {
+ char * args[] = { "string", ":", "delimiters" };
+ bind_builtin( "SPLIT_BY_CHARACTERS",
+ builtin_split_by_characters, 0, 0 );
+ }
+
+ duplicate_rule( "NoCare",
+ bind_builtin( "NOCARE",
+ builtin_flags, T_FLAG_NOCARE, 0 ) );
+
+ duplicate_rule( "NOTIME",
+ duplicate_rule( "NotFile",
+ bind_builtin( "NOTFILE",
+ builtin_flags, T_FLAG_NOTFILE, 0 ) ) );
+
+ duplicate_rule( "NoUpdate",
+ bind_builtin( "NOUPDATE",
+ builtin_flags, T_FLAG_NOUPDATE, 0 ) );
+
+ duplicate_rule( "Temporary",
+ bind_builtin( "TEMPORARY",
+ builtin_flags, T_FLAG_TEMP, 0 ) );
+
+ bind_builtin( "ISFILE",
+ builtin_flags, T_FLAG_ISFILE, 0 );
+
+ duplicate_rule( "HdrMacro",
+ bind_builtin( "HDRMACRO",
+ builtin_hdrmacro, 0, 0 ) );
+
+ /* FAIL_EXPECTED is used to indicate that the result of a target build
+ * action should be inverted (ok <=> fail) this can be useful when
+ * performing test runs from Jamfiles.
+ */
+ bind_builtin( "FAIL_EXPECTED",
+ builtin_flags, T_FLAG_FAIL_EXPECTED, 0 );
+
+ bind_builtin( "RMOLD",
+ builtin_flags, T_FLAG_RMOLD, 0 );
+
+ {
+ char * args[] = { "targets", "*", 0 };
+ bind_builtin( "UPDATE",
+ builtin_update, 0, args );
+ }
+
+ {
+ char * args[] = { "targets", "*",
+ ":", "log", "?",
+ ":", "ignore-minus-n", "?",
+ ":", "ignore-minus-q", "?", 0 };
+ bind_builtin( "UPDATE_NOW",
+ builtin_update_now, 0, args );
+ }
+
+ {
+ char * args[] = { "string", "pattern", "replacements", "+", 0 };
+ duplicate_rule( "subst",
+ bind_builtin( "SUBST",
+ builtin_subst, 0, args ) );
+ }
+
+ {
+ char * args[] = { "module", "?", 0 };
+ bind_builtin( "RULENAMES",
+ builtin_rulenames, 0, args );
+ }
+
+
+ {
+ char * args[] = { "module", "?", 0 };
+ bind_builtin( "VARNAMES",
+ builtin_varnames, 0, args );
+ }
+
+ {
+ char * args[] = { "module", "?", 0 };
+ bind_builtin( "DELETE_MODULE",
+ builtin_delete_module, 0, args );
+ }
+
+ {
+ char * args[] = { "source_module", "?",
+ ":", "source_rules", "*",
+ ":", "target_module", "?",
+ ":", "target_rules", "*",
+ ":", "localize", "?", 0 };
+ bind_builtin( "IMPORT",
+ builtin_import, 0, args );
+ }
+
+ {
+ char * args[] = { "module", "?", ":", "rules", "*", 0 };
+ bind_builtin( "EXPORT",
+ builtin_export, 0, args );
+ }
+
+ {
+ char * args[] = { "levels", "?", 0 };
+ bind_builtin( "CALLER_MODULE",
+ builtin_caller_module, 0, args );
+ }
+
+ {
+ char * args[] = { "levels", "?", 0 };
+ bind_builtin( "BACKTRACE",
+ builtin_backtrace, 0, args );
+ }
+
+ {
+ char * args[] = { 0 };
+ bind_builtin( "PWD",
+ builtin_pwd, 0, args );
+ }
+
+ {
+ char * args[] = { "target", "*", ":", "path", "*", 0 };
+ bind_builtin( "SEARCH_FOR_TARGET",
+ builtin_search_for_target, 0, args );
+ }
+
+ {
+ char * args[] = { "modules_to_import", "+", ":", "target_module", "?", 0 };
+ bind_builtin( "IMPORT_MODULE",
+ builtin_import_module, 0, args );
+ }
+
+ {
+ char * args[] = { "module", "?", 0 };
+ bind_builtin( "IMPORTED_MODULES",
+ builtin_imported_modules, 0, args );
+ }
+
+ {
+ char * args[] = { "instance_module", ":", "class_module", 0 };
+ bind_builtin( "INSTANCE",
+ builtin_instance, 0, args );
+ }
+
+ {
+ char * args[] = { "sequence", "*", 0 };
+ bind_builtin( "SORT",
+ builtin_sort, 0, args );
+ }
+
+ {
+ char * args[] = { "path_parts", "*", 0 };
+ bind_builtin( "NORMALIZE_PATH",
+ builtin_normalize_path, 0, args );
+ }
+
+ {
+ char * args[] = { "args", "*", 0 };
+ bind_builtin( "CALC",
+ builtin_calc, 0, args );
+ }
+
+ {
+ char * args[] = { "module", ":", "rule", 0 };
+ bind_builtin( "NATIVE_RULE",
+ builtin_native_rule, 0, args );
+ }
+
+ {
+ char * args[] = { "module", ":", "rule", ":", "version", 0 };
+ bind_builtin( "HAS_NATIVE_RULE",
+ builtin_has_native_rule, 0, args );
+ }
+
+ {
+ char * args[] = { "module", "*", 0 };
+ bind_builtin( "USER_MODULE",
+ builtin_user_module, 0, args );
+ }
+
+ {
+ char * args[] = { 0 };
+ bind_builtin( "NEAREST_USER_LOCATION",
+ builtin_nearest_user_location, 0, args );
+ }
+
+ {
+ char * args[] = { "file", 0 };
+ bind_builtin( "CHECK_IF_FILE",
+ builtin_check_if_file, 0, args );
+ }
+
+#ifdef HAVE_PYTHON
+ {
+ char * args[] = { "python-module", ":", "function", ":",
+ "jam-module", ":", "rule-name", 0 };
+ bind_builtin( "PYTHON_IMPORT_RULE",
+ builtin_python_import_rule, 0, args );
+ }
+#endif
+
+# if defined( OS_NT ) || defined( OS_CYGWIN )
+ {
+ char * args[] = { "key_path", ":", "data", "?", 0 };
+ bind_builtin( "W32_GETREG",
+ builtin_system_registry, 0, args );
+ }
+
+ {
+ char * args[] = { "key_path", ":", "result-type", 0 };
+ bind_builtin( "W32_GETREGNAMES",
+ builtin_system_registry_names, 0, args );
+ }
+# endif
+
+ {
+ char * args[] = { "command", ":", "*", 0 };
+ duplicate_rule( "SHELL",
+ bind_builtin( "COMMAND",
+ builtin_shell, 0, args ) );
+ }
+
+ {
+ char * args[] = { "string", 0 };
+ bind_builtin( "MD5",
+ builtin_md5, 0, args ) ;
+ }
+
+ {
+ char * args[] = { "name", ":", "mode", 0 };
+ bind_builtin( "FILE_OPEN",
+ builtin_file_open, 0, args );
+ }
+
+ {
+ char * args[] = { "string", ":", "width", 0 };
+ bind_builtin( "PAD",
+ builtin_pad, 0, args );
+ }
+
+ {
+ char * args[] = { "targets", "*", 0 };
+ bind_builtin( "PRECIOUS",
+ builtin_precious, 0, args );
+ }
+
+ {
+ char * args [] = { 0 };
+ bind_builtin( "SELF_PATH", builtin_self_path, 0, args );
+ }
+
+ {
+ char * args [] = { "path", 0 };
+ bind_builtin( "MAKEDIR", builtin_makedir, 0, args );
+ }
+
+ /* Initialize builtin modules. */
+ init_set();
+ init_path();
+ init_regex();
+ init_property_set();
+ init_sequence();
+ init_order();
+}
+
+
+/*
+ * builtin_calc() - CALC rule.
+ *
+ * The CALC rule performs simple mathematical operations on two arguments.
+ */
+
+LIST * builtin_calc( PARSE * parse, FRAME * frame )
+{
+ LIST * arg = lol_get( frame->args, 0 );
+
+ LIST * result = 0;
+ long lhs_value;
+ long rhs_value;
+ long result_value;
+ char buffer [ 16 ];
+ char const * lhs;
+ char const * op;
+ char const * rhs;
+
+ if ( arg == 0 ) return L0;
+ lhs = arg->string;
+
+ arg = list_next( arg );
+ if ( arg == 0 ) return L0;
+ op = arg->string;
+
+ arg = list_next( arg );
+ if ( arg == 0 ) return L0;
+ rhs = arg->string;
+
+ lhs_value = atoi( lhs );
+ rhs_value = atoi( rhs );
+
+ if ( strcmp( "+", op ) == 0 )
+ {
+ result_value = lhs_value + rhs_value;
+ }
+ else if ( strcmp( "-", op ) == 0 )
+ {
+ result_value = lhs_value - rhs_value;
+ }
+ else
+ {
+ return L0;
+ }
+
+ sprintf( buffer, "%ld", result_value );
+ result = list_new( result, newstr( buffer ) );
+ return result;
+}
+
+
+/*
+ * builtin_depends() - DEPENDS/INCLUDES rule.
+ *
+ * The DEPENDS/INCLUDES builtin rule appends each of the listed sources on the
+ * dependency/includes list of each of the listed targets. It binds both the
+ * targets and sources as TARGETs.
+ */
+
+LIST * builtin_depends( PARSE * parse, FRAME * frame )
+{
+ LIST * targets = lol_get( frame->args, 0 );
+ LIST * sources = lol_get( frame->args, 1 );
+ LIST * l;
+
+ for ( l = targets; l; l = list_next( l ) )
+ {
+ TARGET * t = bindtarget( l->string );
+
+ /* If doing INCLUDES, switch to the TARGET's include */
+ /* TARGET, creating it if needed. The internal include */
+ /* TARGET shares the name of its parent. */
+
+ if ( parse->num )
+ {
+ if ( !t->includes )
+ {
+ t->includes = copytarget( t );
+ t->includes->original_target = t;
+ }
+ t = t->includes;
+ }
+
+ t->depends = targetlist( t->depends, sources );
+ }
+
+ /* Enter reverse links */
+ for ( l = sources; l; l = list_next( l ) )
+ {
+ TARGET * s = bindtarget( l->string );
+ s->dependants = targetlist( s->dependants, targets );
+ }
+
+ return L0;
+}
+
+
+/*
+ * builtin_rebuilds() - REBUILDS rule.
+ *
+ * The REBUILDS builtin rule appends each of the listed rebuild-targets in its
+ * 2nd argument on the rebuilds list of each of the listed targets in its first
+ * argument.
+ */
+
+LIST * builtin_rebuilds( PARSE * parse, FRAME * frame )
+{
+ LIST * targets = lol_get( frame->args, 0 );
+ LIST * rebuilds = lol_get( frame->args, 1 );
+ LIST * l;
+
+ for ( l = targets; l; l = list_next( l ) )
+ {
+ TARGET * t = bindtarget( l->string );
+ t->rebuilds = targetlist( t->rebuilds, rebuilds );
+ }
+
+ return L0;
+}
+
+
+/*
+ * builtin_echo() - ECHO rule.
+ *
+ * The ECHO builtin rule echoes the targets to the user. No other actions are
+ * taken.
+ */
+
+LIST * builtin_echo( PARSE * parse, FRAME * frame )
+{
+ list_print( lol_get( frame->args, 0 ) );
+ printf( "\n" );
+ fflush( stdout );
+ return L0;
+}
+
+
+/*
+ * builtin_exit() - EXIT rule.
+ *
+ * The EXIT builtin rule echoes the targets to the user and exits the program
+ * with a failure status.
+ */
+
+LIST * builtin_exit( PARSE * parse, FRAME * frame )
+{
+ list_print( lol_get( frame->args, 0 ) );
+ printf( "\n" );
+ if ( lol_get( frame->args, 1 ) )
+ {
+ exit( atoi( lol_get( frame->args, 1 )->string ) );
+ }
+ else
+ {
+ exit( EXITBAD ); /* yeech */
+ }
+ return L0;
+}
+
+
+/*
+ * builtin_flags() - NOCARE, NOTFILE, TEMPORARY rule.
+ *
+ * Builtin_flags() marks the target with the appropriate flag, for use by make0().
+ * It binds each target as a TARGET.
+ */
+
+LIST * builtin_flags( PARSE * parse, FRAME * frame )
+{
+ LIST * l = lol_get( frame->args, 0 );
+ for ( ; l; l = list_next( l ) )
+ bindtarget( l->string )->flags |= parse->num;
+ return L0;
+}
+
+
+/*
+ * builtin_globbing() - GLOB rule.
+ */
+
+struct globbing
+{
+ LIST * patterns;
+ LIST * results;
+ LIST * case_insensitive;
+};
+
+
+static void downcase_inplace( char * p )
+{
+ for ( ; *p; ++p )
+ *p = tolower( *p );
+}
+
+
+static void builtin_glob_back
+(
+ void * closure,
+ char * file,
+ int status,
+ time_t time
+)
+{
+ PROFILE_ENTER( BUILTIN_GLOB_BACK );
+
+ struct globbing * globbing = (struct globbing *)closure;
+ LIST * l;
+ PATHNAME f;
+ string buf[ 1 ];
+
+ /* Null out directory for matching. We wish we had file_dirscan() pass up a
+ * PATHNAME.
+ */
+ path_parse( file, &f );
+ f.f_dir.len = 0;
+
+ /* For globbing, we unconditionally ignore current and parent directory
+ * items. Since they items always exist, there is no reason why caller of
+ * GLOB would want to see them. We could also change file_dirscan(), but
+ * then paths with embedded "." and ".." would not work anywhere.
+ */
+ if ( !strcmp( f.f_base.ptr, "." ) || !strcmp( f.f_base.ptr, ".." ) )
+ {
+ PROFILE_EXIT( BUILTIN_GLOB_BACK );
+ return;
+ }
+
+ string_new( buf );
+ path_build( &f, buf, 0 );
+
+ if ( globbing->case_insensitive )
+ downcase_inplace( buf->value );
+
+ for ( l = globbing->patterns; l; l = l->next )
+ {
+ if ( !glob( l->string, buf->value ) )
+ {
+ globbing->results = list_new( globbing->results, newstr( file ) );
+ break;
+ }
+ }
+
+ string_free( buf );
+
+ PROFILE_EXIT( BUILTIN_GLOB_BACK );
+}
+
+
+static LIST * downcase_list( LIST * in )
+{
+ LIST * result = 0;
+
+ string s[ 1 ];
+ string_new( s );
+
+ while ( in )
+ {
+ string_copy( s, in->string );
+ downcase_inplace( s->value );
+ result = list_append( result, list_new( 0, newstr( s->value ) ) );
+ in = in->next;
+ }
+
+ string_free( s );
+ return result;
+}
+
+
+LIST * builtin_glob( PARSE * parse, FRAME * frame )
+{
+ LIST * l = lol_get( frame->args, 0 );
+ LIST * r = lol_get( frame->args, 1 );
+
+ struct globbing globbing;
+
+ globbing.results = L0;
+ globbing.patterns = r;
+
+ globbing.case_insensitive
+# if defined( OS_NT ) || defined( OS_CYGWIN )
+ = l; /* Always case-insensitive if any files can be found. */
+# else
+ = lol_get( frame->args, 2 );
+# endif
+
+ if ( globbing.case_insensitive )
+ globbing.patterns = downcase_list( r );
+
+ for ( ; l; l = list_next( l ) )
+ file_dirscan( l->string, builtin_glob_back, &globbing );
+
+ if ( globbing.case_insensitive )
+ list_free( globbing.patterns );
+
+ return globbing.results;
+}
+
+
+static int has_wildcards( char const * str )
+{
+ size_t const index = strcspn( str, "[]*?" );
+ return str[ index ] == '\0' ? 0 : 1;
+}
+
+
+/*
+ * If 'file' exists, append 'file' to 'list'. Returns 'list'.
+ */
+
+static LIST * append_if_exists( LIST * list, char * file )
+{
+ time_t time;
+ timestamp( file, &time );
+ return time > 0
+ ? list_new( list, newstr( file ) )
+ : list;
+}
+
+
+LIST * glob1( char * dirname, char * pattern )
+{
+ LIST * plist = list_new( L0, pattern );
+ struct globbing globbing;
+
+ globbing.results = L0;
+ globbing.patterns = plist;
+
+ globbing.case_insensitive
+# if defined( OS_NT ) || defined( OS_CYGWIN )
+ = plist; /* always case-insensitive if any files can be found */
+# else
+ = L0;
+# endif
+
+ if ( globbing.case_insensitive )
+ globbing.patterns = downcase_list( plist );
+
+ file_dirscan( dirname, builtin_glob_back, &globbing );
+
+ if ( globbing.case_insensitive )
+ list_free( globbing.patterns );
+
+ list_free( plist );
+
+ return globbing.results;
+}
+
+
+LIST * glob_recursive( char * pattern )
+{
+ LIST * result = L0;
+
+ /* Check if there's metacharacters in pattern */
+ if ( !has_wildcards( pattern ) )
+ {
+ /* No metacharacters. Check if the path exists. */
+ result = append_if_exists(result, pattern);
+ }
+ else
+ {
+ /* Have metacharacters in the pattern. Split into dir/name. */
+ PATHNAME path[ 1 ];
+ path_parse( pattern, path );
+
+ if ( path->f_dir.ptr )
+ {
+ LIST * dirs = L0;
+ string dirname[ 1 ];
+ string basename[ 1 ];
+ string_new( dirname );
+ string_new( basename );
+
+ string_append_range( dirname, path->f_dir.ptr,
+ path->f_dir.ptr + path->f_dir.len );
+
+ path->f_grist.ptr = 0;
+ path->f_grist.len = 0;
+ path->f_dir.ptr = 0;
+ path->f_dir.len = 0;
+ path_build( path, basename, 0 );
+
+ dirs = has_wildcards( dirname->value )
+ ? glob_recursive( dirname->value )
+ : list_new( dirs, dirname->value );
+
+ if ( has_wildcards( basename->value ) )
+ {
+ for ( ; dirs; dirs = dirs->next )
+ result = list_append( result, glob1( dirs->string,
+ basename->value ) );
+ }
+ else
+ {
+ string file_string[ 1 ];
+ string_new( file_string );
+
+ /* No wildcard in basename. */
+ for ( ; dirs; dirs = dirs->next )
+ {
+ path->f_dir.ptr = dirs->string;
+ path->f_dir.len = strlen( dirs->string );
+ path_build( path, file_string, 0 );
+
+ result = append_if_exists( result, file_string->value );
+
+ string_truncate( file_string, 0 );
+ }
+
+ string_free( file_string );
+ }
+
+ string_free( dirname );
+ string_free( basename );
+ }
+ else
+ {
+ /** No directory, just a pattern. */
+ result = list_append( result, glob1( ".", pattern ) );
+ }
+ }
+
+ return result;
+}
+
+
+LIST * builtin_glob_recursive( PARSE * parse, FRAME * frame )
+{
+ LIST * result = L0;
+ LIST * l = lol_get( frame->args, 0 );
+ for ( ; l; l = l->next )
+ result = list_append( result, glob_recursive( l->string ) );
+ return result;
+}
+
+
+/*
+ * builtin_match() - MATCH rule, regexp matching.
+ */
+
+LIST * builtin_match( PARSE * parse, FRAME * frame )
+{
+ LIST * l;
+ LIST * r;
+ LIST * result = 0;
+
+ string buf[ 1 ];
+ string_new( buf );
+
+ /* For each pattern */
+
+ for ( l = lol_get( frame->args, 0 ); l; l = l->next )
+ {
+ /* Result is cached and intentionally never freed. */
+ regexp * re = regex_compile( l->string );
+
+ /* For each string to match against. */
+ for ( r = lol_get( frame->args, 1 ); r; r = r->next )
+ {
+ if ( regexec( re, r->string ) )
+ {
+ int i;
+ int top;
+
+ /* Find highest parameter */
+
+ for ( top = NSUBEXP; top-- > 1; )
+ if ( re->startp[ top ] )
+ break;
+
+ /* And add all parameters up to highest onto list. */
+ /* Must have parameters to have results! */
+ for ( i = 1; i <= top; ++i )
+ {
+ string_append_range( buf, re->startp[ i ], re->endp[ i ] );
+ result = list_new( result, newstr( buf->value ) );
+ string_truncate( buf, 0 );
+ }
+ }
+ }
+ }
+
+ string_free( buf );
+ return result;
+}
+
+LIST * builtin_split_by_characters( PARSE * parse, FRAME * frame )
+{
+ LIST * l1 = lol_get( frame->args, 0 );
+ LIST * l2 = lol_get( frame->args, 1 );
+
+ LIST * result = 0;
+
+ char* s = strdup (l1->string);
+ char* delimiters = l2->string;
+ char* t;
+
+ t = strtok (s, delimiters);
+ while (t)
+ {
+ result = list_new(result, newstr(t));
+ t = strtok (NULL, delimiters);
+ }
+
+ free (s);
+
+ return result;
+}
+
+LIST * builtin_hdrmacro( PARSE * parse, FRAME * frame )
+{
+ LIST * l = lol_get( frame->args, 0 );
+
+ for ( ; l; l = list_next( l ) )
+ {
+ TARGET * t = bindtarget( l->string );
+
+ /* Scan file for header filename macro definitions. */
+ if ( DEBUG_HEADER )
+ printf( "scanning '%s' for header file macro definitions\n",
+ l->string );
+
+ macro_headers( t );
+ }
+
+ return L0;
+}
+
+
+/*
+ * builtin_rulenames() - RULENAMES ( MODULE ? ).
+ *
+ * Returns a list of the non-local rule names in the given MODULE. If MODULE is
+ * not supplied, returns the list of rule names in the global module.
+ */
+
+static void add_rule_name( void * r_, void * result_ )
+{
+ RULE * r = (RULE *)r_;
+ LIST * * result = (LIST * *)result_;
+ if ( r->exported )
+ *result = list_new( *result, copystr( r->name ) );
+}
+
+
+LIST * builtin_rulenames( PARSE * parse, FRAME * frame )
+{
+ LIST * arg0 = lol_get( frame->args, 0 );
+ LIST * result = L0;
+ module_t * source_module = bindmodule( arg0 ? arg0->string : 0 );
+
+ if ( source_module->rules )
+ hashenumerate( source_module->rules, add_rule_name, &result );
+ return result;
+}
+
+
+/*
+ * builtin_varnames() - VARNAMES ( MODULE ? ).
+ *
+ * Returns a list of the variable names in the given MODULE. If MODULE is not
+ * supplied, returns the list of variable names in the global module.
+ */
+
+/* helper function for builtin_varnames(), below. Used with hashenumerate, will
+ * prepend the key of each element to the list
+ */
+static void add_hash_key( void * np, void * result_ )
+{
+ LIST * * result = (LIST * *)result_;
+ *result = list_new( *result, copystr( *(char * *)np ) );
+}
+
+
+static struct hash * get_running_module_vars()
+{
+ struct hash * dummy;
+ struct hash * vars = NULL;
+ /* Get the global variables pointer (that of the currently running module).
+ */
+ var_hash_swap( &vars );
+ dummy = vars;
+ /* Put the global variables pointer in its right place. */
+ var_hash_swap( &dummy );
+ return vars;
+}
+
+
+LIST * builtin_varnames( PARSE * parse, FRAME * frame )
+{
+ LIST * arg0 = lol_get( frame->args, 0 );
+ LIST * result = L0;
+ module_t * source_module = bindmodule( arg0 ? arg0->string : 0 );
+
+ /* The running module _always_ has its 'variables' member set to NULL due to
+ * the way enter_module() and var_hash_swap() work.
+ */
+ struct hash * vars = source_module == frame->module
+ ? get_running_module_vars()
+ : source_module->variables;
+
+ if ( vars )
+ hashenumerate( vars, add_hash_key, &result );
+ return result;
+}
+
+
+/*
+ * builtin_delete_module() - MODULE ?.
+ *
+ * Clears all rules and variables from the given module.
+ */
+
+LIST * builtin_delete_module( PARSE * parse, FRAME * frame )
+{
+ LIST * arg0 = lol_get( frame->args, 0 );
+ LIST * result = L0;
+ module_t * source_module = bindmodule( arg0 ? arg0->string : 0 );
+ delete_module( source_module );
+ return result;
+}
+
+
+static void unknown_rule( FRAME * frame, char * key, char * module_name, char * rule_name )
+{
+ backtrace_line( frame->prev );
+ printf( "%s error: rule \"%s\" unknown in module \"%s\"\n", key, rule_name, module_name );
+ backtrace( frame->prev );
+ exit( 1 );
+}
+
+
+/*
+ * builtin_import() - IMPORT
+ * (
+ * SOURCE_MODULE ? :
+ * SOURCE_RULES * :
+ * TARGET_MODULE ? :
+ * TARGET_RULES * :
+ * LOCALIZE ?
+ * )
+ *
+ * The IMPORT rule imports rules from the SOURCE_MODULE into the TARGET_MODULE
+ * as local rules. If either SOURCE_MODULE or TARGET_MODULE is not supplied, it
+ * refers to the global module. SOURCE_RULES specifies which rules from the
+ * SOURCE_MODULE to import; TARGET_RULES specifies the names to give those rules
+ * in TARGET_MODULE. If SOURCE_RULES contains a name which doesn't correspond to
+ * a rule in SOURCE_MODULE, or if it contains a different number of items than
+ * TARGET_RULES, an error is issued. If LOCALIZE is specified, the rules will be
+ * executed in TARGET_MODULE, with corresponding access to its module local
+ * variables.
+ */
+
+LIST * builtin_import( PARSE * parse, FRAME * frame )
+{
+ LIST * source_module_list = lol_get( frame->args, 0 );
+ LIST * source_rules = lol_get( frame->args, 1 );
+ LIST * target_module_list = lol_get( frame->args, 2 );
+ LIST * target_rules = lol_get( frame->args, 3 );
+ LIST * localize = lol_get( frame->args, 4 );
+
+ module_t * target_module =
+ bindmodule( target_module_list ? target_module_list->string : 0 );
+ module_t * source_module =
+ bindmodule( source_module_list ? source_module_list->string : 0 );
+
+ LIST * source_name;
+ LIST * target_name;
+
+ for ( source_name = source_rules, target_name = target_rules;
+ source_name && target_name;
+ source_name = list_next( source_name ),
+ target_name = list_next( target_name ) )
+ {
+ RULE r_;
+ RULE * r = &r_;
+ RULE * imported;
+ r_.name = source_name->string;
+
+ if ( !source_module->rules ||
+ !hashcheck( source_module->rules, (HASHDATA * *)&r ) )
+ unknown_rule( frame, "IMPORT", source_module->name, r_.name );
+
+ imported = import_rule( r, target_module, target_name->string );
+ if ( localize )
+ imported->module = target_module;
+ /* This rule is really part of some other module. Just refer to it here,
+ * but do not let it out.
+ */
+ imported->exported = 0;
+ }
+
+ if ( source_name || target_name )
+ {
+ backtrace_line( frame->prev );
+ printf( "import error: length of source and target rule name lists don't match!\n" );
+ printf( " source: " );
+ list_print( source_rules );
+ printf( "\n target: " );
+ list_print( target_rules );
+ printf( "\n" );
+ backtrace( frame->prev );
+ exit( 1 );
+ }
+
+ return L0;
+}
+
+
+/*
+ * builtin_export() - EXPORT ( MODULE ? : RULES * ).
+ *
+ * The EXPORT rule marks RULES from the SOURCE_MODULE as non-local (and thus
+ * exportable). If an element of RULES does not name a rule in MODULE, an error
+ * is issued.
+ */
+
+LIST * builtin_export( PARSE * parse, FRAME * frame )
+{
+ LIST * module_list = lol_get( frame->args, 0 );
+ LIST * rules = lol_get( frame->args, 1 );
+ module_t * m = bindmodule( module_list ? module_list->string : 0 );
+
+ for ( ; rules; rules = list_next( rules ) )
+ {
+ RULE r_;
+ RULE * r = &r_;
+ r_.name = rules->string;
+
+ if ( !m->rules || !hashcheck( m->rules, (HASHDATA * *)&r ) )
+ unknown_rule( frame, "EXPORT", m->name, r_.name );
+
+ r->exported = 1;
+ }
+ return L0;
+}
+
+
+/*
+ * get_source_line() - Retrieve the file and line number that should be
+ * indicated for a given procedure in debug output or an error backtrace.
+ */
+
+static void get_source_line( PARSE * procedure, char * * file, int * line )
+{
+ if ( procedure )
+ {
+ char * f = procedure->file;
+ int l = procedure->line;
+ if ( !strcmp( f, "+" ) )
+ {
+ f = "jambase.c";
+ l += 3;
+ }
+ *file = f;
+ *line = l;
+ }
+ else
+ {
+ *file = "(builtin)";
+ *line = -1;
+ }
+}
+
+
+void print_source_line( PARSE * p )
+{
+ char * file;
+ int line;
+
+ get_source_line( p, &file, &line );
+ if ( line < 0 )
+ printf( "(builtin):" );
+ else
+ printf( "%s:%d:", file, line );
+}
+
+
+/*
+ * backtrace_line() - print a single line of error backtrace for the given
+ * frame.
+ */
+
+void backtrace_line( FRAME * frame )
+{
+ if ( frame == 0 )
+ {
+ printf( "(no frame):" );
+ }
+ else
+ {
+ print_source_line( frame->procedure );
+ printf( " in %s\n", frame->rulename );
+ }
+}
+
+
+/*
+ * backtrace() - Print the entire backtrace from the given frame to the Jambase
+ * which invoked it.
+ */
+
+void backtrace( FRAME * frame )
+{
+ if ( !frame ) return;
+ while ( ( frame = frame->prev ) )
+ backtrace_line( frame );
+}
+
+
+/*
+ * builtin_backtrace() - A Jam version of the backtrace function, taking no
+ * arguments and returning a list of quadruples: FILENAME LINE MODULE. RULENAME
+ * describing each frame. Note that the module-name is always followed by a
+ * period.
+ */
+
+LIST * builtin_backtrace( PARSE * parse, FRAME * frame )
+{
+ LIST * levels_arg = lol_get( frame->args, 0 );
+ int levels = levels_arg ? atoi( levels_arg->string ) : ( (unsigned int)(-1) >> 1 ) ;
+
+ LIST * result = L0;
+ for ( ; ( frame = frame->prev ) && levels ; --levels )
+ {
+ char * file;
+ int line;
+ char buf[32];
+ get_source_line( frame->procedure, &file, &line );
+ sprintf( buf, "%d", line );
+ result = list_new( result, newstr( file ) );
+ result = list_new( result, newstr( buf ) );
+ result = list_new( result, newstr( frame->module->name ) );
+ result = list_new( result, newstr( frame->rulename ) );
+ }
+ return result;
+}
+
+
+/*
+ * builtin_caller_module() - CALLER_MODULE ( levels ? )
+ *
+ * If levels is not supplied, returns the name of the module of the rule which
+ * called the one calling this one. If levels is supplied, it is interpreted as
+ * an integer specifying a number of additional levels of call stack to traverse
+ * in order to locate the module in question. If no such module exists, returns
+ * the empty list. Also returns the empty list when the module in question is
+ * the global module. This rule is needed for implementing module import
+ * behavior.
+ */
+
+LIST * builtin_caller_module( PARSE * parse, FRAME * frame )
+{
+ LIST * levels_arg = lol_get( frame->args, 0 );
+ int levels = levels_arg ? atoi( levels_arg->string ) : 0 ;
+
+ int i;
+ for ( i = 0; ( i < levels + 2 ) && frame->prev; ++i )
+ frame = frame->prev;
+
+ if ( frame->module == root_module() )
+ return L0;
+
+ {
+ LIST * result;
+ string name;
+ string_copy( &name, frame->module->name );
+ string_pop_back( &name );
+ result = list_new( L0, newstr(name.value) );
+ string_free( &name );
+ return result;
+ }
+}
+
+
+/*
+ * Return the current working directory.
+ *
+ * Usage: pwd = [ PWD ] ;
+ */
+
+LIST * builtin_pwd( PARSE * parse, FRAME * frame )
+{
+ return pwd();
+}
+
+
+/*
+ * Adds targets to the list of target that jam will attempt to update.
+ */
+
+LIST * builtin_update( PARSE * parse, FRAME * frame )
+{
+ LIST * result = list_copy( L0, targets_to_update() );
+ LIST * arg1 = lol_get( frame->args, 0 );
+ clear_targets_to_update();
+ for ( ; arg1; arg1 = list_next( arg1 ) )
+ mark_target_for_updating( newstr( arg1->string ) );
+ return result;
+}
+
+extern int anyhow;
+int last_update_now_status;
+
+/* Takes a list of target names as first argument, and immediately
+ updates them.
+ Second parameter, if specified, if the descriptor (converted to a string)
+ of a log file where all build output is redirected.
+ Third parameter, if non-empty, specifies that the -n option should have
+ no effect -- that is, all out-of-date targets should be rebuild.
+*/
+LIST * builtin_update_now( PARSE * parse, FRAME * frame )
+{
+ LIST * targets = lol_get( frame->args, 0 );
+ LIST * log = lol_get( frame->args, 1 );
+ LIST * force = lol_get (frame->args, 2);
+ LIST * continue_ = lol_get(frame->args, 3);
+ int status = 0;
+ int original_stdout;
+ int original_stderr;
+ int n;
+ int targets_count;
+ const char** targets2;
+ int i;
+ int original_noexec;
+ int original_quitquick;
+
+
+ if (log)
+ {
+ int fd = atoi(log->string);
+ /* Redirect stdout and stderr, temporary, to the log file. */
+ original_stdout = dup (0);
+ original_stderr = dup (1);
+ dup2 (fd, 0);
+ dup2 (fd, 1);
+ }
+
+ if (force)
+ {
+ original_noexec = globs.noexec;
+ globs.noexec = 0;
+ original_quitquick = globs.quitquick;
+ globs.quitquick = 0;
+ }
+
+ if (continue_)
+ {
+ original_quitquick = globs.quitquick;
+ globs.quitquick = 0;
+ }
+
+ targets_count = list_length( targets );
+ targets2 = (const char * *)BJAM_MALLOC( targets_count * sizeof( char * ) );
+ for (i = 0 ; targets; targets = list_next( targets ) )
+ targets2[ i++ ] = targets->string;
+ status |= make( targets_count, targets2, anyhow);
+ free( targets );
+
+ if (force)
+ {
+ globs.noexec = original_noexec;
+ globs.quitquick = original_quitquick;
+ }
+
+ if (continue_)
+ {
+ globs.quitquick = original_quitquick;
+ }
+
+ if (log)
+ {
+ /* Flush whatever stdio might have buffered, while descriptions
+ 0 and 1 still refer to the log file. */
+ fflush (stdout);
+ fflush (stderr);
+ dup2 (original_stdout, 0);
+ dup2 (original_stderr, 1);
+ close (original_stdout);
+ close (original_stderr);
+ }
+
+ last_update_now_status = status;
+
+ if (status == 0)
+ return list_new (L0, newstr ("ok"));
+ else
+ return L0;
+}
+
+LIST * builtin_search_for_target( PARSE * parse, FRAME * frame )
+{
+ LIST * arg1 = lol_get( frame->args, 0 );
+ LIST * arg2 = lol_get( frame->args, 1 );
+ TARGET * t = search_for_target( arg1->string, arg2 );
+ return list_new( L0, t->name );
+}
+
+
+LIST * builtin_import_module( PARSE * parse, FRAME * frame )
+{
+ LIST * arg1 = lol_get( frame->args, 0 );
+ LIST * arg2 = lol_get( frame->args, 1 );
+ module_t * m = arg2 ? bindmodule( arg2->string ) : root_module();
+ import_module( arg1, m );
+ return L0;
+}
+
+
+LIST * builtin_imported_modules( PARSE * parse, FRAME * frame )
+{
+ LIST * arg0 = lol_get( frame->args, 0 );
+ return imported_modules( bindmodule( arg0 ? arg0->string : 0 ) );
+}
+
+
+LIST * builtin_instance( PARSE * parse, FRAME * frame )
+{
+ LIST * arg1 = lol_get( frame->args, 0 );
+ LIST * arg2 = lol_get( frame->args, 1 );
+ module_t * const instance = bindmodule( arg1->string );
+ module_t * const class_module = bindmodule( arg2->string );
+ instance->class_module = class_module;
+ return L0;
+}
+
+
+LIST * builtin_sort( PARSE * parse, FRAME * frame )
+{
+ LIST * arg1 = lol_get( frame->args, 0 );
+ return list_sort( arg1 );
+}
+
+
+LIST * builtin_normalize_path( PARSE * parse, FRAME * frame )
+{
+ LIST * arg = lol_get( frame->args, 0 );
+
+ /* First, we iterate over all '/'-separated elements, starting from the end
+ * of string. If we see a '..', we remove a previous path elements. If we
+ * see '.', we remove it. The removal is done by overwriting data using '\1'
+ * in the string. After the whole string has been processed, we do a second
+ * pass, removing all the entered '\1' characters.
+ */
+
+ string in[ 1 ];
+ string out[ 1 ];
+ /* Last character of the part of string still to be processed. */
+ char * end;
+ /* Working pointer. */
+ char * current;
+ /* Number of '..' elements seen and not processed yet. */
+ int dotdots = 0;
+ int rooted = 0;
+ char * result = 0;
+
+ /* Make a copy of input: we should not change it. Prepend a '/' before it as
+ * a guard for the algorithm later on and remember whether it was originally
+ * rooted or not.
+ */
+ string_new( in );
+ string_push_back( in, '/' );
+ for ( ; arg; arg = list_next( arg ) )
+ {
+ if ( arg->string[ 0 ] != '\0' )
+ {
+ if ( in->size == 1 )
+ rooted = ( ( arg->string[ 0 ] == '/' ) ||
+ ( arg->string[ 0 ] == '\\' ) );
+ else
+ string_append( in, "/" );
+ string_append( in, arg->string );
+ }
+ }
+
+ /* Convert \ into /. On Windows, paths using / and \ are equivalent, and we
+ * want this function to obtain a canonic representation.
+ */
+ for ( current = in->value, end = in->value + in->size;
+ current < end; ++current )
+ if ( *current == '\\' )
+ *current = '/';
+
+ /* Now we remove any extra path elements by overwriting them with '\1'
+ * characters and cound how many more unused '..' path elements there are
+ * remaining. Note that each remaining path element with always starts with
+ * a '/' character.
+ */
+ for ( end = in->value + in->size - 1; end >= in->value; )
+ {
+ /* Set 'current' to the next occurence of '/', which always exists. */
+ for ( current = end; *current != '/'; --current );
+
+ if ( current == end )
+ {
+ /* Found a trailing or duplicate '/'. Remove it. */
+ *current = '\1';
+ }
+ else if ( ( end - current == 1 ) && ( *(current + 1) == '.' ) )
+ {
+ /* Found '/.'. Remove them all. */
+ *current = '\1';
+ *(current + 1) = '\1';
+ }
+ else if ( ( end - current == 2 ) && ( *(current + 1) == '.' ) && ( *(current + 2) == '.' ) )
+ {
+ /* Found '/..'. Remove them all. */
+ *current = '\1';
+ *(current + 1) = '\1';
+ *(current + 2) = '\1';
+ ++dotdots;
+ }
+ else if ( dotdots )
+ {
+ memset( current, '\1', end - current + 1 );
+ --dotdots;
+ }
+ end = current - 1;
+ }
+
+ string_new( out );
+
+ /* Now we know that we need to add exactly dotdots '..' path elements to the
+ * front and that our string is either empty or has a '/' as its first
+ * significant character. If we have any dotdots remaining then the passed
+ * path must not have been rooted or else it is invalid we return an empty
+ * list.
+ */
+ if ( dotdots )
+ {
+ if ( rooted ) return L0;
+ do
+ string_append( out, "/.." );
+ while ( --dotdots );
+ }
+
+ /* Now we actually remove all the path characters marked for removal. */
+ for ( current = in->value; *current; ++current )
+ if ( *current != '\1' )
+ string_push_back( out, *current );
+
+ /* Here we know that our string contains no '\1' characters and is either
+ * empty or has a '/' as its initial character. If the original path was not
+ * rooted and we have a non-empty path we need to drop the initial '/'. If
+ * the original path was rooted and we have an empty path we need to add
+ * back the '/'.
+ */
+ result = newstr( out->size ? out->value + !rooted : ( rooted ? "/" : "." ) );
+
+ string_free( out );
+ string_free( in );
+
+ return list_new( 0, result );
+}
+
+
+LIST * builtin_native_rule( PARSE * parse, FRAME * frame )
+{
+ LIST * module_name = lol_get( frame->args, 0 );
+ LIST * rule_name = lol_get( frame->args, 1 );
+
+ module_t * module = bindmodule( module_name->string );
+
+ native_rule_t n;
+ native_rule_t * np = &n;
+ n.name = rule_name->string;
+ if ( module->native_rules && hashcheck( module->native_rules, (HASHDATA * *)&np ) )
+ {
+ new_rule_body( module, np->name, np->arguments, np->procedure, 1 );
+ }
+ else
+ {
+ backtrace_line( frame->prev );
+ printf( "error: no native rule \"%s\" defined in module \"%s\"\n",
+ n.name, module->name );
+ backtrace( frame->prev );
+ exit( 1 );
+ }
+ return L0;
+}
+
+
+LIST * builtin_has_native_rule( PARSE * parse, FRAME * frame )
+{
+ LIST * module_name = lol_get( frame->args, 0 );
+ LIST * rule_name = lol_get( frame->args, 1 );
+ LIST * version = lol_get( frame->args, 2 );
+
+ module_t * module = bindmodule( module_name->string );
+
+ native_rule_t n;
+ native_rule_t * np = &n;
+ n.name = rule_name->string;
+ if ( module->native_rules && hashcheck( module->native_rules, (HASHDATA * *)&np ) )
+ {
+ int expected_version = atoi( version->string );
+ if ( np->version == expected_version )
+ return list_new( 0, newstr( "true" ) );
+ }
+ return L0;
+}
+
+
+LIST * builtin_user_module( PARSE * parse, FRAME * frame )
+{
+ LIST * module_name = lol_get( frame->args, 0 );
+ for ( ; module_name; module_name = module_name->next )
+ {
+ module_t * m = bindmodule( module_name->string );
+ m->user_module = 1;
+ }
+ return L0;
+}
+
+
+LIST * builtin_nearest_user_location( PARSE * parse, FRAME * frame )
+{
+ FRAME * nearest_user_frame =
+ frame->module->user_module ? frame : frame->prev_user;
+ if ( !nearest_user_frame )
+ return L0;
+
+ {
+ LIST * result = 0;
+ char * file;
+ int line;
+ char buf[32];
+
+ get_source_line( nearest_user_frame->procedure, &file, &line );
+ sprintf( buf, "%d", line );
+ result = list_new( result, newstr( file ) );
+ result = list_new( result, newstr( buf ) );
+ return result;
+ }
+}
+
+
+LIST * builtin_check_if_file( PARSE * parse, FRAME * frame )
+{
+ LIST * name = lol_get( frame->args, 0 );
+ return file_is_file( name->string ) == 1
+ ? list_new( 0, newstr( "true" ) )
+ : L0 ;
+}
+
+
+LIST * builtin_md5( PARSE * parse, FRAME * frame )
+{
+ LIST * l = lol_get( frame->args, 0 );
+ char* s = l->string;
+
+ md5_state_t state;
+ md5_byte_t digest[16];
+ char hex_output[16*2 + 1];
+
+ int di;
+
+ md5_init(&state);
+ md5_append(&state, (const md5_byte_t *)s, strlen(s));
+ md5_finish(&state, digest);
+
+ for (di = 0; di < 16; ++di)
+ sprintf(hex_output + di * 2, "%02x", digest[di]);
+
+ return list_new (0, newstr(hex_output));
+}
+
+LIST *builtin_file_open( PARSE *parse, FRAME *frame )
+{
+ char* name = lol_get(frame->args, 0)->string;
+ char* mode = lol_get(frame->args, 1)->string;
+ int fd;
+ char buffer[sizeof("4294967295")];
+
+ if (strcmp(mode, "w") == 0)
+ {
+ fd = open(name, O_WRONLY|O_CREAT|O_TRUNC, 0666);
+ }
+ else
+ {
+ fd = open(name, O_RDONLY);
+ }
+
+ if (fd != -1)
+ {
+ sprintf(buffer, "%d", fd);
+ return list_new(L0, newstr(buffer));
+ }
+ else
+ {
+ return L0;
+ }
+}
+
+LIST *builtin_pad( PARSE *parse, FRAME *frame )
+{
+ char *string = lol_get(frame->args, 0)->string;
+ char *width_s = lol_get(frame->args, 1)->string;
+
+ int current = strlen (string);
+ int desired = atoi(width_s);
+ if (current >= desired)
+ return list_new (L0, string);
+ else
+ {
+ char *buffer = malloc (desired + 1);
+ int i;
+ LIST *result;
+
+ strcpy (buffer, string);
+ for (i = current; i < desired; ++i)
+ buffer[i] = ' ';
+ buffer[desired] = '\0';
+ result = list_new (L0, newstr (buffer));
+ free (buffer);
+ return result;
+ }
+}
+
+LIST *builtin_precious( PARSE *parse, FRAME *frame )
+{
+ LIST* targets = lol_get(frame->args, 0);
+
+ for ( ; targets; targets = list_next( targets ) )
+ {
+ TARGET* t = bindtarget (targets->string);
+ t->flags |= T_FLAG_PRECIOUS;
+ }
+
+ return L0;
+}
+
+LIST *builtin_self_path( PARSE *parse, FRAME *frame )
+{
+ extern char *saved_argv0;
+ char *p = executable_path (saved_argv0);
+ if (p)
+ {
+ LIST* result = list_new (0, newstr (p));
+ free(p);
+ return result;
+ }
+ else
+ {
+ return L0;
+ }
+}
+
+LIST *builtin_makedir( PARSE *parse, FRAME *frame )
+{
+ LIST *path = lol_get(frame->args, 0);
+
+ if (file_mkdir(path->string) == 0)
+ {
+ LIST *result = list_new (0, newstr(path->string));
+ return result;
+ }
+ else
+ {
+ return L0;
+ }
+}
+
+#ifdef HAVE_PYTHON
+
+LIST * builtin_python_import_rule( PARSE * parse, FRAME * frame )
+{
+ static int first_time = 1;
+ char * python_module = lol_get( frame->args, 0 )->string;
+ char * python_function = lol_get( frame->args, 1 )->string;
+ char * jam_module = lol_get( frame->args, 2 )->string;
+ char * jam_rule = lol_get( frame->args, 3 )->string;
+
+ PyObject * pName;
+ PyObject * pModule;
+ PyObject * pDict;
+ PyObject * pFunc;
+
+ if ( first_time )
+ {
+ /* At the first invocation, we add the value of the global
+ * EXTRA_PYTHONPATH to the sys.path Python variable.
+ */
+ LIST * extra = 0;
+ module_t * outer_module = frame->module;
+
+ first_time = 0;
+
+ if ( outer_module != root_module() )
+ {
+ exit_module( outer_module );
+ enter_module( root_module() );
+ }
+
+ extra = var_get( "EXTRA_PYTHONPATH" );
+
+ if ( outer_module != root_module() )
+ {
+ exit_module( root_module() );
+ enter_module( outer_module );
+ }
+
+ for ( ; extra; extra = extra->next )
+ {
+ string buf[ 1 ];
+ string_new( buf );
+ string_append( buf, "import sys\nsys.path.append(\"" );
+ string_append( buf, extra->string );
+ string_append( buf, "\")\n" );
+ PyRun_SimpleString( buf->value );
+ string_free( buf );
+ }
+ }
+
+ pName = PyString_FromString( python_module );
+ pModule = PyImport_Import( pName );
+ Py_DECREF( pName );
+
+ if ( pModule != NULL )
+ {
+ pDict = PyModule_GetDict( pModule );
+ pFunc = PyDict_GetItemString( pDict, python_function );
+
+ if ( pFunc && PyCallable_Check( pFunc ) )
+ {
+ module_t * m = bindmodule( jam_module );
+ RULE * r = bindrule( jam_rule, m );
+
+ /* Make pFunc owned. */
+ Py_INCREF( pFunc );
+
+ r->python_function = pFunc;
+ }
+ else
+ {
+ if ( PyErr_Occurred() )
+ PyErr_Print();
+ fprintf( stderr, "Cannot find function \"%s\"\n", python_function );
+ }
+ Py_DECREF( pModule );
+ }
+ else
+ {
+ PyErr_Print();
+ fprintf( stderr, "Failed to load \"%s\"\n", python_module );
+ }
+ return L0;
+
+}
+
+#endif
+
+void lol_build( LOL * lol, char * * elements )
+{
+ LIST * l = L0;
+ lol_init( lol );
+
+ while ( elements && *elements )
+ {
+ if ( !strcmp( *elements, ":" ) )
+ {
+ lol_add( lol, l );
+ l = L0 ;
+ }
+ else
+ {
+ l = list_new( l, newstr( *elements ) );
+ }
+ ++elements;
+ }
+
+ if ( l != L0 )
+ lol_add( lol, l );
+}
+
+
+#ifdef HAVE_PYTHON
+
+/*
+ * Calls the bjam rule specified by name passed in 'args'. The name is looked up
+ * in the context of bjam's 'python_interface' module. Returns the list of
+ * string retured by the rule.
+ */
+
+PyObject* bjam_call( PyObject * self, PyObject * args )
+{
+ FRAME inner[ 1 ];
+ LIST * result;
+ PARSE * p;
+ char * rulename;
+
+ /* Build up the list of arg lists. */
+ frame_init( inner );
+ inner->prev = 0;
+ inner->prev_user = 0;
+ inner->module = bindmodule( "python_interface" );
+ inner->procedure = 0;
+
+ /* Extract the rule name and arguments from 'args'. */
+
+ /* PyTuple_GetItem returns borrowed reference. */
+ rulename = PyString_AsString( PyTuple_GetItem( args, 0 ) );
+ {
+ int i = 1;
+ int size = PyTuple_Size( args );
+ for ( ; i < size; ++i )
+ {
+ PyObject * a = PyTuple_GetItem( args, i );
+ if ( PyString_Check( a ) )
+ {
+ lol_add( inner->args, list_new( 0, newstr(
+ PyString_AsString( a ) ) ) );
+ }
+ else if ( PySequence_Check( a ) )
+ {
+ LIST * l = 0;
+ int s = PySequence_Size( a );
+ int i = 0;
+ for ( ; i < s; ++i )
+ {
+ /* PySequence_GetItem returns new reference. */
+ PyObject * e = PySequence_GetItem( a, i );
+ char * s = PyString_AsString( e );
+ if ( !s )
+ {
+ printf( "Invalid parameter type passed from Python\n" );
+ exit( 1 );
+ }
+ l = list_new( l, newstr( s ) );
+ Py_DECREF( e );
+ }
+ lol_add( inner->args, l );
+ }
+ }
+ }
+
+ result = evaluate_rule( rulename, inner );
+
+ frame_free( inner );
+
+ /* Convert the bjam list into a Python list result. */
+ {
+ PyObject * pyResult = PyList_New( list_length( result ) );
+ int i = 0;
+ while ( result )
+ {
+ PyList_SetItem( pyResult, i, PyString_FromString( result->string ) );
+ result = list_next( result );
+ i += 1;
+ }
+ list_free( result );
+ return pyResult;
+ }
+}
+
+
+/*
+ * Accepts four arguments:
+ * - module name
+ * - rule name,
+ * - Python callable.
+ * - (optional) bjam language function signature.
+ * Creates a bjam rule with the specified name in the specified module, which will
+ * invoke the Python callable.
+ */
+
+PyObject * bjam_import_rule( PyObject * self, PyObject * args )
+{
+ char * module;
+ char * rule;
+ PyObject * func;
+ PyObject * bjam_signature = NULL;
+ module_t * m;
+ RULE * r;
+
+ if ( !PyArg_ParseTuple( args, "ssO|O:import_rule",
+ &module, &rule, &func, &bjam_signature ) )
+ return NULL;
+
+ if ( !PyCallable_Check( func ) )
+ {
+ PyErr_SetString( PyExc_RuntimeError,
+ "Non-callable object passed to bjam.import_rule" );
+ return NULL;
+ }
+
+ m = bindmodule( *module ? module : 0 );
+ r = bindrule( rule, m );
+
+ /* Make pFunc owned. */
+ Py_INCREF( func );
+
+ r->python_function = func;
+ r->arguments = 0;
+
+ if (bjam_signature)
+ {
+ argument_list * arg_list = args_new();
+ Py_ssize_t i;
+
+ Py_ssize_t s = PySequence_Size (bjam_signature);
+ for (i = 0; i < s; ++i)
+ {
+ PyObject* v = PySequence_GetItem (bjam_signature, i);
+ lol_add(arg_list->data, list_from_python (v));
+ Py_DECREF(v);
+ }
+ r->arguments = arg_list;
+ }
+
+ Py_INCREF( Py_None );
+ return Py_None;
+}
+
+
+/*
+ * Accepts four arguments:
+ * - an action name
+ * - an action body
+ * - a list of variable that will be bound inside the action
+ * - integer flags.
+ * Defines an action on bjam side.
+ */
+
+PyObject * bjam_define_action( PyObject * self, PyObject * args )
+{
+ char * name;
+ char * body;
+ module_t * m;
+ PyObject * bindlist_python;
+ int flags;
+ LIST * bindlist = L0;
+ int n;
+ int i;
+
+ if ( !PyArg_ParseTuple( args, "ssO!i:define_action", &name, &body,
+ &PyList_Type, &bindlist_python, &flags ) )
+ return NULL;
+
+ n = PyList_Size( bindlist_python );
+ for ( i = 0; i < n; ++i )
+ {
+ PyObject * next = PyList_GetItem( bindlist_python, i );
+ if ( !PyString_Check( next ) )
+ {
+ PyErr_SetString( PyExc_RuntimeError,
+ "bind list has non-string type" );
+ return NULL;
+ }
+ bindlist = list_new( bindlist, PyString_AsString( next ) );
+ }
+
+ new_rule_actions( root_module(), name, newstr( body ), bindlist, flags );
+
+ Py_INCREF( Py_None );
+ return Py_None;
+}
+
+
+/*
+ * Returns the value of a variable in root Jam module.
+ */
+
+PyObject * bjam_variable( PyObject * self, PyObject * args )
+{
+ char * name;
+ LIST * value;
+ PyObject * result;
+ int i;
+
+ if ( !PyArg_ParseTuple( args, "s", &name ) )
+ return NULL;
+
+ enter_module( root_module() );
+ value = var_get( name );
+ exit_module( root_module() );
+
+ result = PyList_New( list_length( value ) );
+ for ( i = 0; value; value = list_next( value ), ++i )
+ PyList_SetItem( result, i, PyString_FromString( value->string ) );
+
+ return result;
+}
+
+
+PyObject * bjam_backtrace( PyObject * self, PyObject * args )
+{
+ PyObject * result = PyList_New( 0 );
+ struct frame * f = frame_before_python_call;
+
+ for ( ; f = f->prev; )
+ {
+ PyObject * tuple = PyTuple_New( 4 );
+ char * file;
+ int line;
+ char buf[ 32 ];
+
+ get_source_line( f->procedure, &file, &line );
+ sprintf( buf, "%d", line );
+
+ /* PyTuple_SetItem steals reference. */
+ PyTuple_SetItem( tuple, 0, PyString_FromString( file ) );
+ PyTuple_SetItem( tuple, 1, PyString_FromString( buf ) );
+ PyTuple_SetItem( tuple, 2, PyString_FromString( f->module->name ) );
+ PyTuple_SetItem( tuple, 3, PyString_FromString( f->rulename ) );
+
+ PyList_Append( result, tuple );
+ Py_DECREF( tuple );
+ }
+ return result;
+}
+
+PyObject * bjam_caller( PyObject * self, PyObject * args )
+{
+ PyObject *result = PyString_FromString(
+ frame_before_python_call->prev->module->name);
+ return result;
+}
+
+#endif /* #ifdef HAVE_PYTHON */
+
+
+#ifdef HAVE_POPEN
+
+#if defined(_MSC_VER) || defined(__BORLANDC__)
+ #define popen windows_popen_wrapper
+ #define pclose _pclose
+
+ /*
+ * This wrapper is a workaround for a funny _popen() feature on Windows
+ * where it eats external quotes in some cases. The bug seems to be related
+ * to the quote stripping functionality used by the Windows cmd.exe
+ * interpreter when its /S is not specified.
+ *
+ * Cleaned up quote from the cmd.exe help screen as displayed on Windows XP
+ * SP3:
+ *
+ * 1. If all of the following conditions are met, then quote characters on
+ * the command line are preserved:
+ *
+ * - no /S switch
+ * - exactly two quote characters
+ * - no special characters between the two quote characters, where
+ * special is one of: &<>()@^|
+ * - there are one or more whitespace characters between the two quote
+ * characters
+ * - the string between the two quote characters is the name of an
+ * executable file.
+ *
+ * 2. Otherwise, old behavior is to see if the first character is a quote
+ * character and if so, strip the leading character and remove the last
+ * quote character on the command line, preserving any text after the
+ * last quote character.
+ *
+ * This causes some commands containing quotes not to be executed correctly.
+ * For example:
+ *
+ * "\Long folder name\aaa.exe" --name="Jurko" --no-surname
+ *
+ * would get its outermost quotes stripped and would be executed as:
+ *
+ * \Long folder name\aaa.exe" --name="Jurko --no-surname
+ *
+ * which would report an error about '\Long' not being a valid command.
+ *
+ * cmd.exe help seems to indicate it would be enough to add an extra space
+ * character in front of the command to avoid this but this does not work,
+ * most likely due to the shell first stripping all leading whitespace
+ * characters from the command.
+ *
+ * Solution implemented here is to quote the whole command in case it
+ * contains any quote characters. Note thought this will not work correctly
+ * should Windows ever 'fix' this feature.
+ * (03.06.2008.) (Jurko)
+ */
+ static FILE * windows_popen_wrapper( char * command, char * mode )
+ {
+ int extra_command_quotes_needed = ( strchr( command, '"' ) != 0 );
+ string quoted_command;
+ FILE * result;
+
+ if ( extra_command_quotes_needed )
+ {
+ string_new( &quoted_command );
+ string_append( &quoted_command, "\"" );
+ string_append( &quoted_command, command );
+ string_append( &quoted_command, "\"" );
+ command = quoted_command.value;
+ }
+
+ result = _popen( command, "r" );
+
+ if ( extra_command_quotes_needed )
+ string_free( &quoted_command );
+
+ return result;
+ }
+#endif
+
+
+static char * rtrim(char *s)
+{
+ char *p = s;
+ while(*p) ++p;
+ for(--p; p >= s && isspace(*p); *p-- = 0);
+ return s;
+}
+
+LIST * builtin_shell( PARSE * parse, FRAME * frame )
+{
+ LIST * command = lol_get( frame->args, 0 );
+ LIST * result = 0;
+ string s;
+ int ret;
+ char buffer[ 1024 ];
+ FILE * p = NULL;
+ int exit_status = -1;
+ int exit_status_opt = 0;
+ int no_output_opt = 0;
+ int strip_eol_opt = 0;
+
+ /* Process the variable args options. */
+ {
+ int a = 1;
+ LIST * arg = lol_get( frame->args, a );
+ while ( arg )
+ {
+ if ( strcmp( "exit-status", arg->string ) == 0 )
+ {
+ exit_status_opt = 1;
+ }
+ else if ( strcmp( "no-output", arg->string ) == 0 )
+ {
+ no_output_opt = 1;
+ }
+ else if ( strcmp("strip-eol", arg->string) == 0 )
+ {
+ strip_eol_opt = 1;
+ }
+ arg = lol_get( frame->args, ++a );
+ }
+ }
+
+ /* The following fflush() call seems to be indicated as a workaround for a
+ * popen() bug on POSIX implementations related to synhronizing input
+ * stream positions for the called and the calling process.
+ */
+ fflush( NULL );
+
+ p = popen( command->string, "r" );
+ if ( p == NULL )
+ return L0;
+
+ string_new( &s );
+
+ while ( ( ret = fread( buffer, sizeof( char ), sizeof( buffer ) - 1, p ) ) > 0 )
+ {
+ buffer[ret] = 0;
+ if ( !no_output_opt )
+ {
+ if ( strip_eol_opt )
+ rtrim(buffer);
+ string_append( &s, buffer );
+ }
+ }
+
+ exit_status = pclose( p );
+
+ /* The command output is returned first. */
+ result = list_new( L0, newstr( s.value ) );
+ string_free( &s );
+
+ /* The command exit result next. */
+ if ( exit_status_opt )
+ {
+ if ( WIFEXITED(exit_status) )
+ exit_status = WEXITSTATUS(exit_status);
+ else
+ exit_status = -1;
+ sprintf( buffer, "%d", exit_status );
+ result = list_new( result, newstr( buffer ) );
+ }
+
+ return result;
+}
+
+#else /* #ifdef HAVE_POPEN */
+
+LIST * builtin_shell( PARSE * parse, FRAME * frame )
+{
+ return L0;
+}
+
+#endif /* #ifdef HAVE_POPEN */
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-11 04:41:58 +0000