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C/C++ Source or Header | 2001-10-22 | 56.5 KB | 1,710 lines

/* * tcl.h -- * * This header file describes the externally-visible facilities * of the Tcl interpreter. * * Copyright (c) 1987-1994 The Regents of the University of California. * Copyright (c) 1993-1996 Lucent Technologies. * Copyright (c) 1994-1998 Sun Microsystems, Inc. * Copyright (c) 1998-2000 by Scriptics Corporation. * * See the file "license.terms" for information on usage and redistribution * of this file, and for a DISCLAIMER OF ALL WARRANTIES. * * RCS: @(#) $Id: tcl.h,v 1.70.2.9 2001/10/17 19:29:24 das Exp $ */ #ifndef _TCL #define _TCL /* * For C++ compilers, use extern "C" */ #ifdef __cplusplus extern "C" { #endif /* * The following defines are used to indicate the various release levels. */ #define TCL_ALPHA_RELEASE 0 #define TCL_BETA_RELEASE 1 #define TCL_FINAL_RELEASE 2 /* * When version numbers change here, must also go into the following files * and update the version numbers: * * library/init.tcl (only if Major.minor changes, not patchlevel) 1 LOC * unix/configure.in (2 LOC Major, 2 LOC minor, 1 LOC patch) * win/configure.in (as above) * win/tcl.m4 (not patchlevel) * win/makefile.vc (not patchlevel) 2 LOC * win/pkgIndex.tcl (not patchlevel, for tclregNN.dll) * README (sections 0 and 2) * mac/README (2 LOC, not patchlevel) * win/README.binary (sections 0-4) * win/README (not patchlevel) (sections 0 and 2) * unix/README (not patchlevel) (part (h)) * unix/tcl.spec (2 LOC Major/Minor, 1 LOC patch) * tests/basic.test (not patchlevel) (version checks) * tools/tcl.hpj.in (not patchlevel, for windows installer) * tools/tcl.wse.in (for windows installer) * tools/tclSplash.bmp (not patchlevel) */ #define TCL_MAJOR_VERSION 8 #define TCL_MINOR_VERSION 3 #define TCL_RELEASE_LEVEL TCL_FINAL_RELEASE #define TCL_RELEASE_SERIAL 4 #define TCL_VERSION "8.3" #define TCL_PATCH_LEVEL "8.3.4" /* * The following definitions set up the proper options for Windows * compilers. We use this method because there is no autoconf equivalent. */ #ifndef __WIN32__ # if defined(_WIN32) || defined(WIN32) || defined(__CYGWIN__) || defined(__MINGW32__) || defined(__BORLANDC__) # define __WIN32__ # ifndef WIN32 # define WIN32 # endif # endif #endif #ifdef __WIN32__ # ifndef STRICT # define STRICT # endif # ifndef USE_PROTOTYPE # define USE_PROTOTYPE 1 # endif # ifndef HAS_STDARG # define HAS_STDARG 1 # endif # ifndef USE_PROTOTYPE # define USE_PROTOTYPE 1 # endif #endif /* __WIN32__ */ /* * The following definitions set up the proper options for Macintosh * compilers. We use this method because there is no autoconf equivalent. */ #ifdef MAC_TCL #include <ConditionalMacros.h> # ifndef HAS_STDARG # define HAS_STDARG 1 # endif # ifndef USE_TCLALLOC # define USE_TCLALLOC 1 # endif # ifndef NO_STRERROR # define NO_STRERROR 1 # endif # define INLINE #endif /* * Utility macros: STRINGIFY takes an argument and wraps it in "" (double * quotation marks), JOIN joins two arguments. */ #define VERBATIM(x) x #ifdef _MSC_VER # define STRINGIFY(x) STRINGIFY1(x) # define STRINGIFY1(x) #x # define JOIN(a,b) JOIN1(a,b) # define JOIN1(a,b) a##b #else # ifdef RESOURCE_INCLUDED # define STRINGIFY(x) STRINGIFY1(x) # define STRINGIFY1(x) #x # define JOIN(a,b) JOIN1(a,b) # define JOIN1(a,b) a##b # else # ifdef __STDC__ # define STRINGIFY(x) #x # define JOIN(a,b) a##b # else # define STRINGIFY(x) "x" # define JOIN(a,b) VERBATIM(a)VERBATIM(b) # endif # endif #endif /* * Special macro to define mutexes, that doesn't do anything * if we are not using threads. */ #ifdef TCL_THREADS #define TCL_DECLARE_MUTEX(name) static Tcl_Mutex name; #else #define TCL_DECLARE_MUTEX(name) #endif /* * Macros that eliminate the overhead of the thread synchronization * functions when compiling without thread support. */ #ifndef TCL_THREADS #define Tcl_MutexLock(mutexPtr) #define Tcl_MutexUnlock(mutexPtr) #define Tcl_MutexFinalize(mutexPtr) #define Tcl_ConditionNotify(condPtr) #define Tcl_ConditionWait(condPtr, mutexPtr, timePtr) #define Tcl_ConditionFinalize(condPtr) #endif /* TCL_THREADS */ /* * A special definition used to allow this header file to be included * in resource files so that they can get obtain version information from * this file. Resource compilers don't like all the C stuff, like typedefs * and procedure declarations, that occur below. */ #ifndef RESOURCE_INCLUDED #ifndef BUFSIZ #include <stdio.h> #endif /* * Definitions that allow Tcl functions with variable numbers of * arguments to be used with either varargs.h or stdarg.h. TCL_VARARGS * is used in procedure prototypes. TCL_VARARGS_DEF is used to declare * the arguments in a function definiton: it takes the type and name of * the first argument and supplies the appropriate argument declaration * string for use in the function definition. TCL_VARARGS_START * initializes the va_list data structure and returns the first argument. */ #if defined(__STDC__) || defined(HAS_STDARG) # include <stdarg.h> # define TCL_VARARGS(type, name) (type name, ...) # define TCL_VARARGS_DEF(type, name) (type name, ...) # define TCL_VARARGS_START(type, name, list) (va_start(list, name), name) #else # include <varargs.h> # ifdef __cplusplus # define TCL_VARARGS(type, name) (type name, ...) # define TCL_VARARGS_DEF(type, name) (type va_alist, ...) # else # define TCL_VARARGS(type, name) () # define TCL_VARARGS_DEF(type, name) (va_alist) # endif # define TCL_VARARGS_START(type, name, list) \ (va_start(list), va_arg(list, type)) #endif /* * Macros used to declare a function to be exported by a DLL. * Used by Windows, maps to no-op declarations on non-Windows systems. * The default build on windows is for a DLL, which causes the DLLIMPORT * and DLLEXPORT macros to be nonempty. To build a static library, the * macro STATIC_BUILD should be defined. */ #ifdef STATIC_BUILD # define DLLIMPORT # define DLLEXPORT #else # if (defined(__WIN32__) && (defined(_MSC_VER) || (defined(__GNUC__) && defined(__declspec)))) || (defined(MAC_TCL) && FUNCTION_DECLSPEC) # define DLLIMPORT __declspec(dllimport) # define DLLEXPORT __declspec(dllexport) # else # define DLLIMPORT # define DLLEXPORT # endif #endif /* * These macros are used to control whether functions are being declared for * import or export. If a function is being declared while it is being built * to be included in a shared library, then it should have the DLLEXPORT * storage class. If is being declared for use by a module that is going to * link against the shared library, then it should have the DLLIMPORT storage * class. If the symbol is beind declared for a static build or for use from a * stub library, then the storage class should be empty. * * The convention is that a macro called BUILD_xxxx, where xxxx is the * name of a library we are building, is set on the compile line for sources * that are to be placed in the library. When this macro is set, the * storage class will be set to DLLEXPORT. At the end of the header file, the * storage class will be reset to DLLIMPORT. */ #undef TCL_STORAGE_CLASS #ifdef BUILD_tcl # define TCL_STORAGE_CLASS DLLEXPORT #else # ifdef USE_TCL_STUBS # define TCL_STORAGE_CLASS # else # define TCL_STORAGE_CLASS DLLIMPORT # endif #endif /* * Definitions that allow this header file to be used either with or * without ANSI C features like function prototypes. */ #undef _ANSI_ARGS_ #undef CONST #ifndef INLINE # define INLINE #endif #if ((defined(__STDC__) || defined(SABER)) && !defined(NO_PROTOTYPE)) || defined(__cplusplus) || defined(USE_PROTOTYPE) # define _USING_PROTOTYPES_ 1 # define _ANSI_ARGS_(x) x # define CONST const #else # define _ANSI_ARGS_(x) () # define CONST #endif /* * Make sure EXTERN isn't defined elsewhere */ #ifdef EXTERN #undef EXTERN #endif /* EXTERN */ #ifdef __cplusplus # define EXTERN extern "C" TCL_STORAGE_CLASS #else # define EXTERN extern TCL_STORAGE_CLASS #endif /* * Macro to use instead of "void" for arguments that must have * type "void *" in ANSI C; maps them to type "char *" in * non-ANSI systems. */ #ifndef __WIN32__ #ifndef VOID # ifdef __STDC__ # define VOID void # else # define VOID char # endif #endif #else /* __WIN32__ */ /* * The following code is copied from winnt.h */ #ifndef VOID #define VOID void typedef char CHAR; typedef short SHORT; typedef long LONG; #endif #endif /* __WIN32__ */ /* * Miscellaneous declarations. */ #ifndef NULL #define NULL 0 #endif #ifndef _CLIENTDATA # if defined(__STDC__) || defined(__cplusplus) typedef void *ClientData; # else typedef int *ClientData; # endif /* __STDC__ */ #define _CLIENTDATA #endif /* * Data structures defined opaquely in this module. The definitions below * just provide dummy types. A few fields are made visible in Tcl_Interp * structures, namely those used for returning a string result from * commands. Direct access to the result field is discouraged in Tcl 8.0. * The interpreter result is either an object or a string, and the two * values are kept consistent unless some C code sets interp->result * directly. Programmers should use either the procedure Tcl_GetObjResult() * or Tcl_GetStringResult() to read the interpreter's result. See the * SetResult man page for details. * * Note: any change to the Tcl_Interp definition below must be mirrored * in the "real" definition in tclInt.h. * * Note: Tcl_ObjCmdProc procedures do not directly set result and freeProc. * Instead, they set a Tcl_Obj member in the "real" structure that can be * accessed with Tcl_GetObjResult() and Tcl_SetObjResult(). */ typedef struct Tcl_Interp { char *result; /* If the last command returned a string * result, this points to it. */ void (*freeProc) _ANSI_ARGS_((char *blockPtr)); /* Zero means the string result is * statically allocated. TCL_DYNAMIC means * it was allocated with ckalloc and should * be freed with ckfree. Other values give * the address of procedure to invoke to * free the result. Tcl_Eval must free it * before executing next command. */ int errorLine; /* When TCL_ERROR is returned, this gives * the line number within the command where * the error occurred (1 if first line). */ } Tcl_Interp; typedef struct Tcl_AsyncHandler_ *Tcl_AsyncHandler; typedef struct Tcl_Channel_ *Tcl_Channel; typedef struct Tcl_Command_ *Tcl_Command; typedef struct Tcl_Condition_ *Tcl_Condition; typedef struct Tcl_EncodingState_ *Tcl_EncodingState; typedef struct Tcl_Encoding_ *Tcl_Encoding; typedef struct Tcl_Event Tcl_Event; typedef struct Tcl_Mutex_ *Tcl_Mutex; typedef struct Tcl_Pid_ *Tcl_Pid; typedef struct Tcl_RegExp_ *Tcl_RegExp; typedef struct Tcl_ThreadDataKey_ *Tcl_ThreadDataKey; typedef struct Tcl_ThreadId_ *Tcl_ThreadId; typedef struct Tcl_TimerToken_ *Tcl_TimerToken; typedef struct Tcl_Trace_ *Tcl_Trace; typedef struct Tcl_Var_ *Tcl_Var; typedef struct Tcl_ChannelTypeVersion_ *Tcl_ChannelTypeVersion; /* * Definition of the interface to procedures implementing threads. * A procedure following this definition is given to each call of * 'Tcl_CreateThread' and will be called as the main fuction of * the new thread created by that call. */ #ifdef MAC_TCL typedef pascal void *(Tcl_ThreadCreateProc) _ANSI_ARGS_((ClientData clientData)); #elif defined __WIN32__ typedef unsigned (__stdcall Tcl_ThreadCreateProc) _ANSI_ARGS_((ClientData clientData)); #else typedef void (Tcl_ThreadCreateProc) _ANSI_ARGS_((ClientData clientData)); #endif /* * Threading function return types used for abstracting away platform * differences when writing a Tcl_ThreadCreateProc. See the NewThread * function in generic/tclThreadTest.c for it's usage. */ #ifdef MAC_TCL # define Tcl_ThreadCreateType pascal void * # define TCL_THREAD_CREATE_RETURN return NULL #elif defined __WIN32__ # define Tcl_ThreadCreateType unsigned __stdcall # define TCL_THREAD_CREATE_RETURN return 0 #else # define Tcl_ThreadCreateType void # define TCL_THREAD_CREATE_RETURN #endif /* * Definition of values for default stacksize and the possible flags to be * given to Tcl_CreateThread. */ #define TCL_THREAD_STACK_DEFAULT (0) /* Use default size for stack */ #define TCL_THREAD_NOFLAGS (0000) /* Standard flags, default behaviour */ #define TCL_THREAD_JOINABLE (0001) /* Mark the thread as joinable */ /* * Flag values passed to Tcl_GetRegExpFromObj. */ #define TCL_REG_BASIC 000000 /* BREs (convenience) */ #define TCL_REG_EXTENDED 000001 /* EREs */ #define TCL_REG_ADVF 000002 /* advanced features in EREs */ #define TCL_REG_ADVANCED 000003 /* AREs (which are also EREs) */ #define TCL_REG_QUOTE 000004 /* no special characters, none */ #define TCL_REG_NOCASE 000010 /* ignore case */ #define TCL_REG_NOSUB 000020 /* don't care about subexpressions */ #define TCL_REG_EXPANDED 000040 /* expanded format, white space & * comments */ #define TCL_REG_NLSTOP 000100 /* \n doesn't match . or [^ ] */ #define TCL_REG_NLANCH 000200 /* ^ matches after \n, $ before */ #define TCL_REG_NEWLINE 000300 /* newlines are line terminators */ #define TCL_REG_CANMATCH 001000 /* report details on partial/limited * matches */ /* * The following flag is experimental and only intended for use by Expect. It * will probably go away in a later release. */ #define TCL_REG_BOSONLY 002000 /* prepend \A to pattern so it only * matches at the beginning of the * string. */ /* * Flags values passed to Tcl_RegExpExecObj. */ #define TCL_REG_NOTBOL 0001 /* Beginning of string does not match ^. */ #define TCL_REG_NOTEOL 0002 /* End of string does not match $. */ /* * Structures filled in by Tcl_RegExpInfo. Note that all offset values are * relative to the start of the match string, not the beginning of the * entire string. */ typedef struct Tcl_RegExpIndices { long start; /* character offset of first character in match */ long end; /* character offset of first character after the * match. */ } Tcl_RegExpIndices; typedef struct Tcl_RegExpInfo { int nsubs; /* number of subexpressions in the * compiled expression */ Tcl_RegExpIndices *matches; /* array of nsubs match offset * pairs */ long extendStart; /* The offset at which a subsequent * match might begin. */ long reserved; /* Reserved for later use. */ } Tcl_RegExpInfo; /* * Picky compilers complain if this typdef doesn't appear before the * struct's reference in tclDecls.h. */ typedef struct stat *Tcl_Stat_; /* * When a TCL command returns, the interpreter contains a result from the * command. Programmers are strongly encouraged to use one of the * procedures Tcl_GetObjResult() or Tcl_GetStringResult() to read the * interpreter's result. See the SetResult man page for details. Besides * this result, the command procedure returns an integer code, which is * one of the following: * * TCL_OK Command completed normally; the interpreter's * result contains the command's result. * TCL_ERROR The command couldn't be completed successfully; * the interpreter's result describes what went wrong. * TCL_RETURN The command requests that the current procedure * return; the interpreter's result contains the * procedure's return value. * TCL_BREAK The command requests that the innermost loop * be exited; the interpreter's result is meaningless. * TCL_CONTINUE Go on to the next iteration of the current loop; * the interpreter's result is meaningless. */ #define TCL_OK 0 #define TCL_ERROR 1 #define TCL_RETURN 2 #define TCL_BREAK 3 #define TCL_CONTINUE 4 #define TCL_RESULT_SIZE 200 /* * Argument descriptors for math function callbacks in expressions: */ typedef enum {TCL_INT, TCL_DOUBLE, TCL_EITHER} Tcl_ValueType; typedef struct Tcl_Value { Tcl_ValueType type; /* Indicates intValue or doubleValue is * valid, or both. */ long intValue; /* Integer value. */ double doubleValue; /* Double-precision floating value. */ } Tcl_Value; /* * Forward declaration of Tcl_Obj to prevent an error when the forward * reference to Tcl_Obj is encountered in the procedure types declared * below. */ struct Tcl_Obj; /* * Procedure types defined by Tcl: */ typedef int (Tcl_AppInitProc) _ANSI_ARGS_((Tcl_Interp *interp)); typedef int (Tcl_AsyncProc) _ANSI_ARGS_((ClientData clientData, Tcl_Interp *interp, int code)); typedef void (Tcl_ChannelProc) _ANSI_ARGS_((ClientData clientData, int mask)); typedef void (Tcl_CloseProc) _ANSI_ARGS_((ClientData data)); typedef void (Tcl_CmdDeleteProc) _ANSI_ARGS_((ClientData clientData)); typedef int (Tcl_CmdProc) _ANSI_ARGS_((ClientData clientData, Tcl_Interp *interp, int argc, char *argv[])); typedef void (Tcl_CmdTraceProc) _ANSI_ARGS_((ClientData clientData, Tcl_Interp *interp, int level, char *command, Tcl_CmdProc *proc, ClientData cmdClientData, int argc, char *argv[])); typedef void (Tcl_DupInternalRepProc) _ANSI_ARGS_((struct Tcl_Obj *srcPtr, struct Tcl_Obj *dupPtr)); typedef int (Tcl_EncodingConvertProc)_ANSI_ARGS_((ClientData clientData, CONST char *src, int srcLen, int flags, Tcl_EncodingState *statePtr, char *dst, int dstLen, int *srcReadPtr, int *dstWrotePtr, int *dstCharsPtr)); typedef void (Tcl_EncodingFreeProc)_ANSI_ARGS_((ClientData clientData)); typedef int (Tcl_EventProc) _ANSI_ARGS_((Tcl_Event *evPtr, int flags)); typedef void (Tcl_EventCheckProc) _ANSI_ARGS_((ClientData clientData, int flags)); typedef int (Tcl_EventDeleteProc) _ANSI_ARGS_((Tcl_Event *evPtr, ClientData clientData)); typedef void (Tcl_EventSetupProc) _ANSI_ARGS_((ClientData clientData, int flags)); typedef void (Tcl_ExitProc) _ANSI_ARGS_((ClientData clientData)); typedef void (Tcl_FileProc) _ANSI_ARGS_((ClientData clientData, int mask)); typedef void (Tcl_FileFreeProc) _ANSI_ARGS_((ClientData clientData)); typedef void (Tcl_FreeInternalRepProc) _ANSI_ARGS_((struct Tcl_Obj *objPtr)); typedef void (Tcl_FreeProc) _ANSI_ARGS_((char *blockPtr)); typedef void (Tcl_IdleProc) _ANSI_ARGS_((ClientData clientData)); typedef void (Tcl_InterpDeleteProc) _ANSI_ARGS_((ClientData clientData, Tcl_Interp *interp)); typedef int (Tcl_MathProc) _ANSI_ARGS_((ClientData clientData, Tcl_Interp *interp, Tcl_Value *args, Tcl_Value *resultPtr)); typedef void (Tcl_NamespaceDeleteProc) _ANSI_ARGS_((ClientData clientData)); typedef int (Tcl_ObjCmdProc) _ANSI_ARGS_((ClientData clientData, Tcl_Interp *interp, int objc, struct Tcl_Obj * CONST * objv)); typedef int (Tcl_PackageInitProc) _ANSI_ARGS_((Tcl_Interp *interp)); typedef void (Tcl_PanicProc) _ANSI_ARGS_(TCL_VARARGS(char *, format)); typedef void (Tcl_TcpAcceptProc) _ANSI_ARGS_((ClientData callbackData, Tcl_Channel chan, char *address, int port)); typedef void (Tcl_TimerProc) _ANSI_ARGS_((ClientData clientData)); typedef int (Tcl_SetFromAnyProc) _ANSI_ARGS_((Tcl_Interp *interp, struct Tcl_Obj *objPtr)); typedef void (Tcl_UpdateStringProc) _ANSI_ARGS_((struct Tcl_Obj *objPtr)); typedef char *(Tcl_VarTraceProc) _ANSI_ARGS_((ClientData clientData, Tcl_Interp *interp, char *part1, char *part2, int flags)); typedef void (Tcl_CreateFileHandlerProc) _ANSI_ARGS_((int fd, int mask, Tcl_FileProc *proc, ClientData clientData)); typedef void (Tcl_DeleteFileHandlerProc) _ANSI_ARGS_((int fd)); typedef void (Tcl_MainLoopProc) _ANSI_ARGS_((void)); /* * The following structure represents a type of object, which is a * particular internal representation for an object plus a set of * procedures that provide standard operations on objects of that type. */ typedef struct Tcl_ObjType { char *name; /* Name of the type, e.g. "int". */ Tcl_FreeInternalRepProc *freeIntRepProc; /* Called to free any storage for the type's * internal rep. NULL if the internal rep * does not need freeing. */ Tcl_DupInternalRepProc *dupIntRepProc; /* Called to create a new object as a copy * of an existing object. */ Tcl_UpdateStringProc *updateStringProc; /* Called to update the string rep from the * type's internal representation. */ Tcl_SetFromAnyProc *setFromAnyProc; /* Called to convert the object's internal * rep to this type. Frees the internal rep * of the old type. Returns TCL_ERROR on * failure. */ } Tcl_ObjType; /* * One of the following structures exists for each object in the Tcl * system. An object stores a value as either a string, some internal * representation, or both. */ typedef struct Tcl_Obj { int refCount; /* When 0 the object will be freed. */ char *bytes; /* This points to the first byte of the * object's string representation. The array * must be followed by a null byte (i.e., at * offset length) but may also contain * embedded null characters. The array's * storage is allocated by ckalloc. NULL * means the string rep is invalid and must * be regenerated from the internal rep. * Clients should use Tcl_GetStringFromObj * or Tcl_GetString to get a pointer to the * byte array as a readonly value. */ int length; /* The number of bytes at *bytes, not * including the terminating null. */ Tcl_ObjType *typePtr; /* Denotes the object's type. Always * corresponds to the type of the object's * internal rep. NULL indicates the object * has no internal rep (has no type). */ union { /* The internal representation: */ long longValue; /* - an long integer value */ double doubleValue; /* - a double-precision floating value */ VOID *otherValuePtr; /* - another, type-specific value */ struct { /* - internal rep as two pointers */ VOID *ptr1; VOID *ptr2; } twoPtrValue; } internalRep; } Tcl_Obj; /* * Macros to increment and decrement a Tcl_Obj's reference count, and to * test whether an object is shared (i.e. has reference count > 1). * Note: clients should use Tcl_DecrRefCount() when they are finished using * an object, and should never call TclFreeObj() directly. TclFreeObj() is * only defined and made public in tcl.h to support Tcl_DecrRefCount's macro * definition. Note also that Tcl_DecrRefCount() refers to the parameter * "obj" twice. This means that you should avoid calling it with an * expression that is expensive to compute or has side effects. */ void Tcl_IncrRefCount _ANSI_ARGS_((Tcl_Obj *objPtr)); void Tcl_DecrRefCount _ANSI_ARGS_((Tcl_Obj *objPtr)); int Tcl_IsShared _ANSI_ARGS_((Tcl_Obj *objPtr)); #ifdef TCL_MEM_DEBUG # define Tcl_IncrRefCount(objPtr) \ Tcl_DbIncrRefCount(objPtr, __FILE__, __LINE__) # define Tcl_DecrRefCount(objPtr) \ Tcl_DbDecrRefCount(objPtr, __FILE__, __LINE__) # define Tcl_IsShared(objPtr) \ Tcl_DbIsShared(objPtr, __FILE__, __LINE__) #else # define Tcl_IncrRefCount(objPtr) \ ++(objPtr)->refCount # define Tcl_DecrRefCount(objPtr) \ if (--(objPtr)->refCount <= 0) TclFreeObj(objPtr) # define Tcl_IsShared(objPtr) \ ((objPtr)->refCount > 1) #endif /* * Macros and definitions that help to debug the use of Tcl objects. * When TCL_MEM_DEBUG is defined, the Tcl_New declarations are * overridden to call debugging versions of the object creation procedures. */ #ifdef TCL_MEM_DEBUG # define Tcl_NewBooleanObj(val) \ Tcl_DbNewBooleanObj(val, __FILE__, __LINE__) # define Tcl_NewByteArrayObj(bytes, len) \ Tcl_DbNewByteArrayObj(bytes, len, __FILE__, __LINE__) # define Tcl_NewDoubleObj(val) \ Tcl_DbNewDoubleObj(val, __FILE__, __LINE__) # define Tcl_NewIntObj(val) \ Tcl_DbNewLongObj(val, __FILE__, __LINE__) # define Tcl_NewListObj(objc, objv) \ Tcl_DbNewListObj(objc, objv, __FILE__, __LINE__) # define Tcl_NewLongObj(val) \ Tcl_DbNewLongObj(val, __FILE__, __LINE__) # define Tcl_NewObj() \ Tcl_DbNewObj(__FILE__, __LINE__) # define Tcl_NewStringObj(bytes, len) \ Tcl_DbNewStringObj(bytes, len, __FILE__, __LINE__) #endif /* TCL_MEM_DEBUG */ /* * The following structure contains the state needed by * Tcl_SaveResult. No-one outside of Tcl should access any of these * fields. This structure is typically allocated on the stack. */ typedef struct Tcl_SavedResult { char *result; Tcl_FreeProc *freeProc; Tcl_Obj *objResultPtr; char *appendResult; int appendAvl; int appendUsed; char resultSpace[TCL_RESULT_SIZE+1]; } Tcl_SavedResult; /* * The following definitions support Tcl's namespace facility. * Note: the first five fields must match exactly the fields in a * Namespace structure (see tclInt.h). */ typedef struct Tcl_Namespace { char *name; /* The namespace's name within its parent * namespace. This contains no ::'s. The * name of the global namespace is "" * although "::" is an synonym. */ char *fullName; /* The namespace's fully qualified name. * This starts with ::. */ ClientData clientData; /* Arbitrary value associated with this * namespace. */ Tcl_NamespaceDeleteProc* deleteProc; /* Procedure invoked when deleting the * namespace to, e.g., free clientData. */ struct Tcl_Namespace* parentPtr; /* Points to the namespace that contains * this one. NULL if this is the global * namespace. */ } Tcl_Namespace; /* * The following structure represents a call frame, or activation record. * A call frame defines a naming context for a procedure call: its local * scope (for local variables) and its namespace scope (used for non-local * variables; often the global :: namespace). A call frame can also define * the naming context for a namespace eval or namespace inscope command: * the namespace in which the command's code should execute. The * Tcl_CallFrame structures exist only while procedures or namespace * eval/inscope's are being executed, and provide a Tcl call stack. * * A call frame is initialized and pushed using Tcl_PushCallFrame and * popped using Tcl_PopCallFrame. Storage for a Tcl_CallFrame must be * provided by the Tcl_PushCallFrame caller, and callers typically allocate * them on the C call stack for efficiency. For this reason, Tcl_CallFrame * is defined as a structure and not as an opaque token. However, most * Tcl_CallFrame fields are hidden since applications should not access * them directly; others are declared as "dummyX". * * WARNING!! The structure definition must be kept consistent with the * CallFrame structure in tclInt.h. If you change one, change the other. */ typedef struct Tcl_CallFrame { Tcl_Namespace *nsPtr; int dummy1; int dummy2; char *dummy3; char *dummy4; char *dummy5; int dummy6; char *dummy7; char *dummy8; int dummy9; char* dummy10; } Tcl_CallFrame; /* * Information about commands that is returned by Tcl_GetCommandInfo and * passed to Tcl_SetCommandInfo. objProc is an objc/objv object-based * command procedure while proc is a traditional Tcl argc/argv * string-based procedure. Tcl_CreateObjCommand and Tcl_CreateCommand * ensure that both objProc and proc are non-NULL and can be called to * execute the command. However, it may be faster to call one instead of * the other. The member isNativeObjectProc is set to 1 if an * object-based procedure was registered by Tcl_CreateObjCommand, and to * 0 if a string-based procedure was registered by Tcl_CreateCommand. * The other procedure is typically set to a compatibility wrapper that * does string-to-object or object-to-string argument conversions then * calls the other procedure. */ typedef struct Tcl_CmdInfo { int isNativeObjectProc; /* 1 if objProc was registered by a call to * Tcl_CreateObjCommand; 0 otherwise. * Tcl_SetCmdInfo does not modify this * field. */ Tcl_ObjCmdProc *objProc; /* Command's object-based procedure. */ ClientData objClientData; /* ClientData for object proc. */ Tcl_CmdProc *proc; /* Command's string-based procedure. */ ClientData clientData; /* ClientData for string proc. */ Tcl_CmdDeleteProc *deleteProc; /* Procedure to call when command is * deleted. */ ClientData deleteData; /* Value to pass to deleteProc (usually * the same as clientData). */ Tcl_Namespace *namespacePtr; /* Points to the namespace that contains * this command. Note that Tcl_SetCmdInfo * will not change a command's namespace; * use Tcl_RenameCommand to do that. */ } Tcl_CmdInfo; /* * The structure defined below is used to hold dynamic strings. The only * field that clients should use is the string field, and they should * never modify it. */ #define TCL_DSTRING_STATIC_SIZE 200 typedef struct Tcl_DString { char *string; /* Points to beginning of string: either * staticSpace below or a malloced array. */ int length; /* Number of non-NULL characters in the * string. */ int spaceAvl; /* Total number of bytes available for the * string and its terminating NULL char. */ char staticSpace[TCL_DSTRING_STATIC_SIZE]; /* Space to use in common case where string * is small. */ } Tcl_DString; #define Tcl_DStringLength(dsPtr) ((dsPtr)->length) #define Tcl_DStringValue(dsPtr) ((dsPtr)->string) #define Tcl_DStringTrunc Tcl_DStringSetLength /* * Definitions for the maximum number of digits of precision that may * be specified in the "tcl_precision" variable, and the number of * bytes of buffer space required by Tcl_PrintDouble. */ #define TCL_MAX_PREC 17 #define TCL_DOUBLE_SPACE (TCL_MAX_PREC+10) /* * Definition for a number of bytes of buffer space sufficient to hold the * string representation of an integer in base 10 (assuming the existence * of 64-bit integers). */ #define TCL_INTEGER_SPACE 24 /* * Flag that may be passed to Tcl_ConvertElement to force it not to * output braces (careful! if you change this flag be sure to change * the definitions at the front of tclUtil.c). */ #define TCL_DONT_USE_BRACES 1 /* * Flag that may be passed to Tcl_GetIndexFromObj to force it to disallow * abbreviated strings. */ #define TCL_EXACT 1 /* * Flag values passed to Tcl_RecordAndEval and/or Tcl_EvalObj. * WARNING: these bit choices must not conflict with the bit choices * for evalFlag bits in tclInt.h!! */ #define TCL_NO_EVAL 0x10000 #define TCL_EVAL_GLOBAL 0x20000 #define TCL_EVAL_DIRECT 0x40000 /* * Special freeProc values that may be passed to Tcl_SetResult (see * the man page for details): */ #define TCL_VOLATILE ((Tcl_FreeProc *) 1) #define TCL_STATIC ((Tcl_FreeProc *) 0) #define TCL_DYNAMIC ((Tcl_FreeProc *) 3) /* * Flag values passed to variable-related procedures. */ #define TCL_GLOBAL_ONLY 1 #define TCL_NAMESPACE_ONLY 2 #define TCL_APPEND_VALUE 4 #define TCL_LIST_ELEMENT 8 #define TCL_TRACE_READS 0x10 #define TCL_TRACE_WRITES 0x20 #define TCL_TRACE_UNSETS 0x40 #define TCL_TRACE_DESTROYED 0x80 #define TCL_INTERP_DESTROYED 0x100 #define TCL_LEAVE_ERR_MSG 0x200 #define TCL_TRACE_ARRAY 0x800 /* * The TCL_PARSE_PART1 flag is deprecated and has no effect. * The part1 is now always parsed whenever the part2 is NULL. * (This is to avoid a common error when converting code to * use the new object based APIs and forgetting to give the * flag) */ #ifndef TCL_NO_DEPRECATED #define TCL_PARSE_PART1 0x400 #endif /* * Types for linked variables: */ #define TCL_LINK_INT 1 #define TCL_LINK_DOUBLE 2 #define TCL_LINK_BOOLEAN 3 #define TCL_LINK_STRING 4 #define TCL_LINK_READ_ONLY 0x80 /* * Forward declaration of Tcl_HashTable. Needed by some C++ compilers * to prevent errors when the forward reference to Tcl_HashTable is * encountered in the Tcl_HashEntry structure. */ #ifdef __cplusplus struct Tcl_HashTable; #endif /* * Structure definition for an entry in a hash table. No-one outside * Tcl should access any of these fields directly; use the macros * defined below. */ typedef struct Tcl_HashEntry { struct Tcl_HashEntry *nextPtr; /* Pointer to next entry in this * hash bucket, or NULL for end of * chain. */ struct Tcl_HashTable *tablePtr; /* Pointer to table containing entry. */ struct Tcl_HashEntry **bucketPtr; /* Pointer to bucket that points to * first entry in this entry's chain: * used for deleting the entry. */ ClientData clientData; /* Application stores something here * with Tcl_SetHashValue. */ union { /* Key has one of these forms: */ char *oneWordValue; /* One-word value for key. */ int words[1]; /* Multiple integer words for key. * The actual size will be as large * as necessary for this table's * keys. */ char string[4]; /* String for key. The actual size * will be as large as needed to hold * the key. */ } key; /* MUST BE LAST FIELD IN RECORD!! */ } Tcl_HashEntry; /* * Structure definition for a hash table. Must be in tcl.h so clients * can allocate space for these structures, but clients should never * access any fields in this structure. */ #define TCL_SMALL_HASH_TABLE 4 typedef struct Tcl_HashTable { Tcl_HashEntry **buckets; /* Pointer to bucket array. Each * element points to first entry in * bucket's hash chain, or NULL. */ Tcl_HashEntry *staticBuckets[TCL_SMALL_HASH_TABLE]; /* Bucket array used for small tables * (to avoid mallocs and frees). */ int numBuckets; /* Total number of buckets allocated * at **bucketPtr. */ int numEntries; /* Total number of entries present * in table. */ int rebuildSize; /* Enlarge table when numEntries gets * to be this large. */ int downShift; /* Shift count used in hashing * function. Designed to use high- * order bits of randomized keys. */ int mask; /* Mask value used in hashing * function. */ int keyType; /* Type of keys used in this table. * It's either TCL_STRING_KEYS, * TCL_ONE_WORD_KEYS, or an integer * giving the number of ints that * is the size of the key. */ Tcl_HashEntry *(*findProc) _ANSI_ARGS_((struct Tcl_HashTable *tablePtr, CONST char *key)); Tcl_HashEntry *(*createProc) _ANSI_ARGS_((struct Tcl_HashTable *tablePtr, CONST char *key, int *newPtr)); } Tcl_HashTable; /* * Structure definition for information used to keep track of searches * through hash tables: */ typedef struct Tcl_HashSearch { Tcl_HashTable *tablePtr; /* Table being searched. */ int nextIndex; /* Index of next bucket to be * enumerated after present one. */ Tcl_HashEntry *nextEntryPtr; /* Next entry to be enumerated in the * the current bucket. */ } Tcl_HashSearch; /* * Acceptable key types for hash tables: */ #define TCL_STRING_KEYS 0 #define TCL_ONE_WORD_KEYS 1 /* * Macros for clients to use to access fields of hash entries: */ #define Tcl_GetHashValue(h) ((h)->clientData) #define Tcl_SetHashValue(h, value) ((h)->clientData = (ClientData) (value)) #define Tcl_GetHashKey(tablePtr, h) \ ((char *) (((tablePtr)->keyType == TCL_ONE_WORD_KEYS) ? (h)->key.oneWordValue \ : (h)->key.string)) /* * Macros to use for clients to use to invoke find and create procedures * for hash tables: */ #define Tcl_FindHashEntry(tablePtr, key) \ (*((tablePtr)->findProc))(tablePtr, key) #define Tcl_CreateHashEntry(tablePtr, key, newPtr) \ (*((tablePtr)->createProc))(tablePtr, key, newPtr) /* * Flag values to pass to Tcl_DoOneEvent to disable searches * for some kinds of events: */ #define TCL_DONT_WAIT (1<<1) #define TCL_WINDOW_EVENTS (1<<2) #define TCL_FILE_EVENTS (1<<3) #define TCL_TIMER_EVENTS (1<<4) #define TCL_IDLE_EVENTS (1<<5) /* WAS 0x10 ???? */ #define TCL_ALL_EVENTS (~TCL_DONT_WAIT) /* * The following structure defines a generic event for the Tcl event * system. These are the things that are queued in calls to Tcl_QueueEvent * and serviced later by Tcl_DoOneEvent. There can be many different * kinds of events with different fields, corresponding to window events, * timer events, etc. The structure for a particular event consists of * a Tcl_Event header followed by additional information specific to that * event. */ struct Tcl_Event { Tcl_EventProc *proc; /* Procedure to call to service this event. */ struct Tcl_Event *nextPtr; /* Next in list of pending events, or NULL. */ }; /* * Positions to pass to Tcl_QueueEvent: */ typedef enum { TCL_QUEUE_TAIL, TCL_QUEUE_HEAD, TCL_QUEUE_MARK } Tcl_QueuePosition; /* * Values to pass to Tcl_SetServiceMode to specify the behavior of notifier * event routines. */ #define TCL_SERVICE_NONE 0 #define TCL_SERVICE_ALL 1 /* * The following structure keeps is used to hold a time value, either as * an absolute time (the number of seconds from the epoch) or as an * elapsed time. On Unix systems the epoch is Midnight Jan 1, 1970 GMT. * On Macintosh systems the epoch is Midnight Jan 1, 1904 GMT. */ typedef struct Tcl_Time { long sec; /* Seconds. */ long usec; /* Microseconds. */ } Tcl_Time; typedef void (Tcl_SetTimerProc) _ANSI_ARGS_((Tcl_Time *timePtr)); typedef int (Tcl_WaitForEventProc) _ANSI_ARGS_((Tcl_Time *timePtr)); /* * Bits to pass to Tcl_CreateFileHandler and Tcl_CreateChannelHandler * to indicate what sorts of events are of interest: */ #define TCL_READABLE (1<<1) #define TCL_WRITABLE (1<<2) #define TCL_EXCEPTION (1<<3) /* * Flag values to pass to Tcl_OpenCommandChannel to indicate the * disposition of the stdio handles. TCL_STDIN, TCL_STDOUT, TCL_STDERR, * are also used in Tcl_GetStdChannel. */ #define TCL_STDIN (1<<1) #define TCL_STDOUT (1<<2) #define TCL_STDERR (1<<3) #define TCL_ENFORCE_MODE (1<<4) /* * Bits passed to Tcl_DriverClose2Proc to indicate which side of a channel * should be closed. */ #define TCL_CLOSE_READ (1<<1) #define TCL_CLOSE_WRITE (1<<2) /* * Value to use as the closeProc for a channel that supports the * close2Proc interface. */ #define TCL_CLOSE2PROC ((Tcl_DriverCloseProc *)1) /* * Channel version tag. This was introduced in 8.3.2/8.4. */ #define TCL_CHANNEL_VERSION_1 ((Tcl_ChannelTypeVersion) 0x1) #define TCL_CHANNEL_VERSION_2 ((Tcl_ChannelTypeVersion) 0x2) /* * Typedefs for the various operations in a channel type: */ typedef int (Tcl_DriverBlockModeProc) _ANSI_ARGS_(( ClientData instanceData, int mode)); typedef int (Tcl_DriverCloseProc) _ANSI_ARGS_((ClientData instanceData, Tcl_Interp *interp)); typedef int (Tcl_DriverClose2Proc) _ANSI_ARGS_((ClientData instanceData, Tcl_Interp *interp, int flags)); typedef int (Tcl_DriverInputProc) _ANSI_ARGS_((ClientData instanceData, char *buf, int toRead, int *errorCodePtr)); typedef int (Tcl_DriverOutputProc) _ANSI_ARGS_((ClientData instanceData, char *buf, int toWrite, int *errorCodePtr)); typedef int (Tcl_DriverSeekProc) _ANSI_ARGS_((ClientData instanceData, long offset, int mode, int *errorCodePtr)); typedef int (Tcl_DriverSetOptionProc) _ANSI_ARGS_(( ClientData instanceData, Tcl_Interp *interp, char *optionName, char *value)); typedef int (Tcl_DriverGetOptionProc) _ANSI_ARGS_(( ClientData instanceData, Tcl_Interp *interp, char *optionName, Tcl_DString *dsPtr)); typedef void (Tcl_DriverWatchProc) _ANSI_ARGS_(( ClientData instanceData, int mask)); typedef int (Tcl_DriverGetHandleProc) _ANSI_ARGS_(( ClientData instanceData, int direction, ClientData *handlePtr)); typedef int (Tcl_DriverFlushProc) _ANSI_ARGS_(( ClientData instanceData)); typedef int (Tcl_DriverHandlerProc) _ANSI_ARGS_(( ClientData instanceData, int interestMask)); /* * The following declarations either map ckalloc and ckfree to * malloc and free, or they map them to procedures with all sorts * of debugging hooks defined in tclCkalloc.c. */ #ifdef TCL_MEM_DEBUG # define ckalloc(x) Tcl_DbCkalloc(x, __FILE__, __LINE__) # define ckfree(x) Tcl_DbCkfree(x, __FILE__, __LINE__) # define ckrealloc(x,y) Tcl_DbCkrealloc((x), (y),__FILE__, __LINE__) #else /* !TCL_MEM_DEBUG */ /* * If we are not using the debugging allocator, we should call the * Tcl_Alloc, et al. routines in order to guarantee that every module * is using the same memory allocator both inside and outside of the * Tcl library. */ # define ckalloc(x) Tcl_Alloc(x) # define ckfree(x) Tcl_Free(x) # define ckrealloc(x,y) Tcl_Realloc(x,y) # define Tcl_InitMemory(x) # define Tcl_DumpActiveMemory(x) # define Tcl_ValidateAllMemory(x,y) #endif /* !TCL_MEM_DEBUG */ /* * Enum for different end of line translation and recognition modes. */ typedef enum Tcl_EolTranslation { TCL_TRANSLATE_AUTO, /* Eol == \r, \n and \r\n. */ TCL_TRANSLATE_CR, /* Eol == \r. */ TCL_TRANSLATE_LF, /* Eol == \n. */ TCL_TRANSLATE_CRLF /* Eol == \r\n. */ } Tcl_EolTranslation; /* * struct Tcl_ChannelType: * * One such structure exists for each type (kind) of channel. * It collects together in one place all the functions that are * part of the specific channel type. * * It is recommend that the Tcl_Channel* functions are used to access * elements of this structure, instead of direct accessing. */ typedef struct Tcl_ChannelType { char *typeName; /* The name of the channel type in Tcl * commands. This storage is owned by * channel type. */ Tcl_ChannelTypeVersion version; /* Version of the channel type. */ Tcl_DriverCloseProc *closeProc; /* Procedure to call to close the * channel, or TCL_CLOSE2PROC if the * close2Proc should be used * instead. */ Tcl_DriverInputProc *inputProc; /* Procedure to call for input * on channel. */ Tcl_DriverOutputProc *outputProc; /* Procedure to call for output * on channel. */ Tcl_DriverSeekProc *seekProc; /* Procedure to call to seek * on the channel. May be NULL. */ Tcl_DriverSetOptionProc *setOptionProc; /* Set an option on a channel. */ Tcl_DriverGetOptionProc *getOptionProc; /* Get an option from a channel. */ Tcl_DriverWatchProc *watchProc; /* Set up the notifier to watch * for events on this channel. */ Tcl_DriverGetHandleProc *getHandleProc; /* Get an OS handle from the channel * or NULL if not supported. */ Tcl_DriverClose2Proc *close2Proc; /* Procedure to call to close the * channel if the device supports * closing the read & write sides * independently. */ Tcl_DriverBlockModeProc *blockModeProc; /* Set blocking mode for the * raw channel. May be NULL. */ /* * Only valid in TCL_CHANNEL_VERSION_2 channels */ Tcl_DriverFlushProc *flushProc; /* Procedure to call to flush a * channel. May be NULL. */ Tcl_DriverHandlerProc *handlerProc; /* Procedure to call to handle a * channel event. This will be passed * up the stacked channel chain. */ } Tcl_ChannelType; /* * The following flags determine whether the blockModeProc above should * set the channel into blocking or nonblocking mode. They are passed * as arguments to the blockModeProc procedure in the above structure. */ #define TCL_MODE_BLOCKING 0 /* Put channel into blocking mode. */ #define TCL_MODE_NONBLOCKING 1 /* Put channel into nonblocking * mode. */ /* * Enum for different types of file paths. */ typedef enum Tcl_PathType { TCL_PATH_ABSOLUTE, TCL_PATH_RELATIVE, TCL_PATH_VOLUME_RELATIVE } Tcl_PathType; /* * The following structure represents the Notifier functions that * you can override with the Tcl_SetNotifier call. */ typedef struct Tcl_NotifierProcs { Tcl_SetTimerProc *setTimerProc; Tcl_WaitForEventProc *waitForEventProc; Tcl_CreateFileHandlerProc *createFileHandlerProc; Tcl_DeleteFileHandlerProc *deleteFileHandlerProc; } Tcl_NotifierProcs; /* * The following structure represents a user-defined encoding. It collects * together all the functions that are used by the specific encoding. */ typedef struct Tcl_EncodingType { CONST char *encodingName; /* The name of the encoding, e.g. "euc-jp". * This name is the unique key for this * encoding type. */ Tcl_EncodingConvertProc *toUtfProc; /* Procedure to convert from external * encoding into UTF-8. */ Tcl_EncodingConvertProc *fromUtfProc; /* Procedure to convert from UTF-8 into * external encoding. */ Tcl_EncodingFreeProc *freeProc; /* If non-NULL, procedure to call when this * encoding is deleted. */ ClientData clientData; /* Arbitrary value associated with encoding * type. Passed to conversion procedures. */ int nullSize; /* Number of zero bytes that signify * end-of-string in this encoding. This * number is used to determine the source * string length when the srcLen argument is * negative. Must be 1 or 2. */ } Tcl_EncodingType; /* * The following definitions are used as values for the conversion control * flags argument when converting text from one character set to another: * * TCL_ENCODING_START: Signifies that the source buffer is the first * block in a (potentially multi-block) input * stream. Tells the conversion procedure to * reset to an initial state and perform any * initialization that needs to occur before the * first byte is converted. If the source * buffer contains the entire input stream to be * converted, this flag should be set. * * TCL_ENCODING_END: Signifies that the source buffer is the last * block in a (potentially multi-block) input * stream. Tells the conversion routine to * perform any finalization that needs to occur * after the last byte is converted and then to * reset to an initial state. If the source * buffer contains the entire input stream to be * converted, this flag should be set. * * TCL_ENCODING_STOPONERROR: If set, then the converter will return * immediately upon encountering an invalid * byte sequence or a source character that has * no mapping in the target encoding. If clear, * then the converter will skip the problem, * substituting one or more "close" characters * in the destination buffer and then continue * to sonvert the source. */ #define TCL_ENCODING_START 0x01 #define TCL_ENCODING_END 0x02 #define TCL_ENCODING_STOPONERROR 0x04 /* *---------------------------------------------------------------- * The following data structures and declarations are for the new * Tcl parser. This stuff should all move to tcl.h eventually. *---------------------------------------------------------------- */ /* * For each word of a command, and for each piece of a word such as a * variable reference, one of the following structures is created to * describe the token. */ typedef struct Tcl_Token { int type; /* Type of token, such as TCL_TOKEN_WORD; * see below for valid types. */ char *start; /* First character in token. */ int size; /* Number of bytes in token. */ int numComponents; /* If this token is composed of other * tokens, this field tells how many of * them there are (including components of * components, etc.). The component tokens * immediately follow this one. */ } Tcl_Token; /* * Type values defined for Tcl_Token structures. These values are * defined as mask bits so that it's easy to check for collections of * types. * * TCL_TOKEN_WORD - The token describes one word of a command, * from the first non-blank character of * the word (which may be " or {) up to but * not including the space, semicolon, or * bracket that terminates the word. * NumComponents counts the total number of * sub-tokens that make up the word. This * includes, for example, sub-tokens of * TCL_TOKEN_VARIABLE tokens. * TCL_TOKEN_SIMPLE_WORD - This token is just like TCL_TOKEN_WORD * except that the word is guaranteed to * consist of a single TCL_TOKEN_TEXT * sub-token. * TCL_TOKEN_TEXT - The token describes a range of literal * text that is part of a word. * NumComponents is always 0. * TCL_TOKEN_BS - The token describes a backslash sequence * that must be collapsed. NumComponents * is always 0. * TCL_TOKEN_COMMAND - The token describes a command whose result * must be substituted into the word. The * token includes the enclosing brackets. * NumComponents is always 0. * TCL_TOKEN_VARIABLE - The token describes a variable * substitution, including the dollar sign, * variable name, and array index (if there * is one) up through the right * parentheses. NumComponents tells how * many additional tokens follow to * represent the variable name. The first * token will be a TCL_TOKEN_TEXT token * that describes the variable name. If * the variable is an array reference then * there will be one or more additional * tokens, of type TCL_TOKEN_TEXT, * TCL_TOKEN_BS, TCL_TOKEN_COMMAND, and * TCL_TOKEN_VARIABLE, that describe the * array index; numComponents counts the * total number of nested tokens that make * up the variable reference, including * sub-tokens of TCL_TOKEN_VARIABLE tokens. * TCL_TOKEN_SUB_EXPR - The token describes one subexpression of a * expression, from the first non-blank * character of the subexpression up to but not * including the space, brace, or bracket * that terminates the subexpression. * NumComponents counts the total number of * following subtokens that make up the * subexpression; this includes all subtokens * for any nested TCL_TOKEN_SUB_EXPR tokens. * For example, a numeric value used as a * primitive operand is described by a * TCL_TOKEN_SUB_EXPR token followed by a * TCL_TOKEN_TEXT token. A binary subexpression * is described by a TCL_TOKEN_SUB_EXPR token * followed by the TCL_TOKEN_OPERATOR token * for the operator, then TCL_TOKEN_SUB_EXPR * tokens for the left then the right operands. * TCL_TOKEN_OPERATOR - The token describes one expression operator. * An operator might be the name of a math * function such as "abs". A TCL_TOKEN_OPERATOR * token is always preceeded by one * TCL_TOKEN_SUB_EXPR token for the operator's * subexpression, and is followed by zero or * more TCL_TOKEN_SUB_EXPR tokens for the * operator's operands. NumComponents is * always 0. */ #define TCL_TOKEN_WORD 1 #define TCL_TOKEN_SIMPLE_WORD 2 #define TCL_TOKEN_TEXT 4 #define TCL_TOKEN_BS 8 #define TCL_TOKEN_COMMAND 16 #define TCL_TOKEN_VARIABLE 32 #define TCL_TOKEN_SUB_EXPR 64 #define TCL_TOKEN_OPERATOR 128 /* * Parsing error types. On any parsing error, one of these values * will be stored in the error field of the Tcl_Parse structure * defined below. */ #define TCL_PARSE_SUCCESS 0 #define TCL_PARSE_QUOTE_EXTRA 1 #define TCL_PARSE_BRACE_EXTRA 2 #define TCL_PARSE_MISSING_BRACE 3 #define TCL_PARSE_MISSING_BRACKET 4 #define TCL_PARSE_MISSING_PAREN 5 #define TCL_PARSE_MISSING_QUOTE 6 #define TCL_PARSE_MISSING_VAR_BRACE 7 #define TCL_PARSE_SYNTAX 8 #define TCL_PARSE_BAD_NUMBER 9 /* * A structure of the following type is filled in by Tcl_ParseCommand. * It describes a single command parsed from an input string. */ #define NUM_STATIC_TOKENS 20 typedef struct Tcl_Parse { char *commentStart; /* Pointer to # that begins the first of * one or more comments preceding the * command. */ int commentSize; /* Number of bytes in comments (up through * newline character that terminates the * last comment). If there were no * comments, this field is 0. */ char *commandStart; /* First character in first word of command. */ int commandSize; /* Number of bytes in command, including * first character of first word, up * through the terminating newline, * close bracket, or semicolon. */ int numWords; /* Total number of words in command. May * be 0. */ Tcl_Token *tokenPtr; /* Pointer to first token representing * the words of the command. Initially * points to staticTokens, but may change * to point to malloc-ed space if command * exceeds space in staticTokens. */ int numTokens; /* Total number of tokens in command. */ int tokensAvailable; /* Total number of tokens available at * *tokenPtr. */ int errorType; /* One of the parsing error types defined * above. */ /* * The fields below are intended only for the private use of the * parser. They should not be used by procedures that invoke * Tcl_ParseCommand. */ char *string; /* The original command string passed to * Tcl_ParseCommand. */ char *end; /* Points to the character just after the * last one in the command string. */ Tcl_Interp *interp; /* Interpreter to use for error reporting, * or NULL. */ char *term; /* Points to character in string that * terminated most recent token. Filled in * by ParseTokens. If an error occurs, * points to beginning of region where the * error occurred (e.g. the open brace if * the close brace is missing). */ int incomplete; /* This field is set to 1 by Tcl_ParseCommand * if the command appears to be incomplete. * This information is used by * Tcl_CommandComplete. */ Tcl_Token staticTokens[NUM_STATIC_TOKENS]; /* Initial space for tokens for command. * This space should be large enough to * accommodate most commands; dynamic * space is allocated for very large * commands that don't fit here. */ } Tcl_Parse; /* * The following definitions are the error codes returned by the conversion * routines: * * TCL_OK: All characters were converted. * * TCL_CONVERT_NOSPACE: The output buffer would not have been large * enough for all of the converted data; as many * characters as could fit were converted though. * * TCL_CONVERT_MULTIBYTE: The last few bytes in the source string were * the beginning of a multibyte sequence, but * more bytes were needed to complete this * sequence. A subsequent call to the conversion * routine should pass the beginning of this * unconverted sequence plus additional bytes * from the source stream to properly convert * the formerly split-up multibyte sequence. * * TCL_CONVERT_SYNTAX: The source stream contained an invalid * character sequence. This may occur if the * input stream has been damaged or if the input * encoding method was misidentified. This error * is reported only if TCL_ENCODING_STOPONERROR * was specified. * * TCL_CONVERT_UNKNOWN: The source string contained a character * that could not be represented in the target * encoding. This error is reported only if * TCL_ENCODING_STOPONERROR was specified. */ #define TCL_CONVERT_MULTIBYTE -1 #define TCL_CONVERT_SYNTAX -2 #define TCL_CONVERT_UNKNOWN -3 #define TCL_CONVERT_NOSPACE -4 /* * The maximum number of bytes that are necessary to represent a single * Unicode character in UTF-8. */ #define TCL_UTF_MAX 3 /* * This represents a Unicode character. */ typedef unsigned short Tcl_UniChar; /* * Deprecated Tcl procedures: */ #ifndef TCL_NO_DEPRECATED #define Tcl_EvalObj(interp,objPtr) Tcl_EvalObjEx((interp),(objPtr),0) #define Tcl_GlobalEvalObj(interp,objPtr) \ Tcl_EvalObjEx((interp),(objPtr),TCL_EVAL_GLOBAL) #endif /* * These function have been renamed. The old names are deprecated, but we * define these macros for backwards compatibilty. */ #define Tcl_Ckalloc Tcl_Alloc #define Tcl_Ckfree Tcl_Free #define Tcl_Ckrealloc Tcl_Realloc #define Tcl_Return Tcl_SetResult #define Tcl_TildeSubst Tcl_TranslateFileName #define panic Tcl_Panic #define panicVA Tcl_PanicVA /* * The following constant is used to test for older versions of Tcl * in the stubs tables. * * Jan Nijtman's plus patch uses 0xFCA1BACF, so we need to pick a different * value since the stubs tables don't match. */ #define TCL_STUB_MAGIC 0xFCA3BACF /* * The following function is required to be defined in all stubs aware * extensions. The function is actually implemented in the stub * library, not the main Tcl library, although there is a trivial * implementation in the main library in case an extension is statically * linked into an application. */ EXTERN char * Tcl_InitStubs _ANSI_ARGS_((Tcl_Interp *interp, char *version, int exact)); #ifndef USE_TCL_STUBS /* * When not using stubs, make it a macro. */ #define Tcl_InitStubs(interp, version, exact) \ Tcl_PkgRequire(interp, "Tcl", version, exact) #endif /* * Include the public function declarations that are accessible via * the stubs table. */ #include "tclDecls.h" /* * Public functions that are not accessible via the stubs table. */ EXTERN void Tcl_Main _ANSI_ARGS_((int argc, char **argv, Tcl_AppInitProc *appInitProc)); /* * Convenience declaration of Tcl_AppInit for backwards compatibility. * This function is not *implemented* by the tcl library, so the storage * class is neither DLLEXPORT nor DLLIMPORT */ #undef TCL_STORAGE_CLASS #define TCL_STORAGE_CLASS EXTERN int Tcl_AppInit _ANSI_ARGS_((Tcl_Interp *interp)); #endif /* RESOURCE_INCLUDED */ #undef TCL_STORAGE_CLASS #define TCL_STORAGE_CLASS DLLIMPORT /* * end block for C++ */ #ifdef __cplusplus } #endif #endif /* _TCL */