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diff --git a/generic/tclInt.h b/generic/tclInt.h new file mode 100644 index 0000000..32ef58a --- /dev/null +++ b/generic/tclInt.h @@ -0,0 +1,1923 @@ +/* + * tclInt.h -- + * + * Declarations of things used internally by the Tcl interpreter. + * + * Copyright (c) 1987-1993 The Regents of the University of California. + * Copyright (c) 1994-1997 Sun Microsystems, Inc. + * Copyright (c) 1993-1997 Lucent Technologies. + * + * See the file "license.terms" for information on usage and redistribution + * of this file, and for a DISCLAIMER OF ALL WARRANTIES. + * + *SCCS: @(#) tclInt.h 1.293 97/08/12 17:07:02 + */ + +#ifndef _TCLINT +#define _TCLINT + +/* + * Common include files needed by most of the Tcl source files are + * included here, so that system-dependent personalizations for the + * include files only have to be made in once place. This results + * in a few extra includes, but greater modularity. The order of + * the three groups of #includes is important. For example, stdio.h + * is needed by tcl.h, and the _ANSI_ARGS_ declaration in tcl.h is + * needed by stdlib.h in some configurations. + */ + +#include <stdio.h> + +#ifndef _TCL +#include "tcl.h" +#endif +#ifndef _REGEXP +#include "tclRegexp.h" +#endif + +#include <ctype.h> +#ifdef NO_LIMITS_H +# include "../compat/limits.h" +#else +# include <limits.h> +#endif +#ifdef NO_STDLIB_H +# include "../compat/stdlib.h" +#else +# include <stdlib.h> +#endif +#ifdef NO_STRING_H +#include "../compat/string.h" +#else +#include <string.h> +#endif +#if defined(__STDC__) || defined(HAS_STDARG) +# include <stdarg.h> +#else +# include <varargs.h> +#endif + +/* + *---------------------------------------------------------------- + * Data structures related to namespaces. + *---------------------------------------------------------------- + */ + +/* + * The structure below defines a namespace. + * Note: the first five fields must match exactly the fields in a + * Tcl_Namespace structure (see tcl.h). If you change one, be sure to + * change the other. + */ + +typedef struct Namespace { + char *name; /* The namespace's simple (unqualified) + * name. 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; /* An arbitrary value associated with this + * namespace. */ + Tcl_NamespaceDeleteProc *deleteProc; + /* Procedure invoked when deleting the + * namespace to, e.g., free clientData. */ + struct Namespace *parentPtr; /* Points to the namespace that contains + * this one. NULL if this is the global + * namespace. */ + Tcl_HashTable childTable; /* Contains any child namespaces. Indexed + * by strings; values have type + * (Namespace *). */ + long nsId; /* Unique id for the namespace. */ + Tcl_Interp *interp; /* The interpreter containing this + * namespace. */ + int flags; /* OR-ed combination of the namespace + * status flags NS_DYING and NS_DEAD + * listed below. */ + int activationCount; /* Number of "activations" or active call + * frames for this namespace that are on + * the Tcl call stack. The namespace won't + * be freed until activationCount becomes + * zero. */ + int refCount; /* Count of references by namespaceName * + * objects. The namespace can't be freed + * until refCount becomes zero. */ + Tcl_HashTable cmdTable; /* Contains all the commands currently + * registered in the namespace. Indexed by + * strings; values have type (Command *). + * Commands imported by Tcl_Import have + * Command structures that point (via an + * ImportedCmdRef structure) to the + * Command structure in the source + * namespace's command table. */ + Tcl_HashTable varTable; /* Contains all the (global) variables + * currently in this namespace. Indexed + * by strings; values have type (Var *). */ + char **exportArrayPtr; /* Points to an array of string patterns + * specifying which commands are exported. + * A pattern may include "string match" + * style wildcard characters to specify + * multiple commands; however, no namespace + * qualifiers are allowed. NULL if no + * export patterns are registered. */ + int numExportPatterns; /* Number of export patterns currently + * registered using "namespace export". */ + int maxExportPatterns; /* Mumber of export patterns for which + * space is currently allocated. */ + int cmdRefEpoch; /* Incremented if a newly added command + * shadows a command for which this + * namespace has already cached a Command * + * pointer; this causes all its cached + * Command* pointers to be invalidated. */ +} Namespace; + +/* + * Flags used to represent the status of a namespace: + * + * NS_DYING - 1 means Tcl_DeleteNamespace has been called to delete the + * namespace but there are still active call frames on the Tcl + * stack that refer to the namespace. When the last call frame + * referring to it has been popped, it's variables and command + * will be destroyed and it will be marked "dead" (NS_DEAD). + * The namespace can no longer be looked up by name. + * NS_DEAD - 1 means Tcl_DeleteNamespace has been called to delete the + * namespace and no call frames still refer to it. Its + * variables and command have already been destroyed. This bit + * allows the namespace resolution code to recognize that the + * namespace is "deleted". When the last namespaceName object + * in any byte code code unit that refers to the namespace has + * been freed (i.e., when the namespace's refCount is 0), the + * namespace's storage will be freed. + */ + +#define NS_DYING 0x01 +#define NS_DEAD 0x02 + +/* + * Flag passed to TclGetNamespaceForQualName to have it create all namespace + * components of a namespace-qualified name that cannot be found. The new + * namespaces are created within their specified parent. Note that this + * flag's value must not conflict with the values of the flags + * TCL_GLOBAL_ONLY, TCL_NAMESPACE_ONLY, and FIND_ONLY_NS (defined in + * tclNamesp.c). + */ + +#define CREATE_NS_IF_UNKNOWN 0x800 + +/* + *---------------------------------------------------------------- + * Data structures related to variables. These are used primarily + * in tclVar.c + *---------------------------------------------------------------- + */ + +/* + * The following structure defines a variable trace, which is used to + * invoke a specific C procedure whenever certain operations are performed + * on a variable. + */ + +typedef struct VarTrace { + Tcl_VarTraceProc *traceProc;/* Procedure to call when operations given + * by flags are performed on variable. */ + ClientData clientData; /* Argument to pass to proc. */ + int flags; /* What events the trace procedure is + * interested in: OR-ed combination of + * TCL_TRACE_READS, TCL_TRACE_WRITES, and + * TCL_TRACE_UNSETS. */ + struct VarTrace *nextPtr; /* Next in list of traces associated with + * a particular variable. */ +} VarTrace; + +/* + * When a variable trace is active (i.e. its associated procedure is + * executing), one of the following structures is linked into a list + * associated with the variable's interpreter. The information in + * the structure is needed in order for Tcl to behave reasonably + * if traces are deleted while traces are active. + */ + +typedef struct ActiveVarTrace { + struct Var *varPtr; /* Variable that's being traced. */ + struct ActiveVarTrace *nextPtr; + /* Next in list of all active variable + * traces for the interpreter, or NULL + * if no more. */ + VarTrace *nextTracePtr; /* Next trace to check after current + * trace procedure returns; if this + * trace gets deleted, must update pointer + * to avoid using free'd memory. */ +} ActiveVarTrace; + +/* + * The following structure describes an enumerative search in progress on + * an array variable; this are invoked with options to the "array" + * command. + */ + +typedef struct ArraySearch { + int id; /* Integer id used to distinguish among + * multiple concurrent searches for the + * same array. */ + struct Var *varPtr; /* Pointer to array variable that's being + * searched. */ + Tcl_HashSearch search; /* Info kept by the hash module about + * progress through the array. */ + Tcl_HashEntry *nextEntry; /* Non-null means this is the next element + * to be enumerated (it's leftover from + * the Tcl_FirstHashEntry call or from + * an "array anymore" command). NULL + * means must call Tcl_NextHashEntry + * to get value to return. */ + struct ArraySearch *nextPtr;/* Next in list of all active searches + * for this variable, or NULL if this is + * the last one. */ +} ArraySearch; + +/* + * The structure below defines a variable, which associates a string name + * with a Tcl_Obj value. These structures are kept in procedure call frames + * (for local variables recognized by the compiler) or in the heap (for + * global variables and any variable not known to the compiler). For each + * Var structure in the heap, a hash table entry holds the variable name and + * a pointer to the Var structure. + */ + +typedef struct Var { + union { + Tcl_Obj *objPtr; /* The variable's object value. Used for + * scalar variables and array elements. */ + Tcl_HashTable *tablePtr;/* For array variables, this points to + * information about the hash table used + * to implement the associative array. + * Points to malloc-ed data. */ + struct Var *linkPtr; /* If this is a global variable being + * referred to in a procedure, or a variable + * created by "upvar", this field points to + * the referenced variable's Var struct. */ + } value; + char *name; /* NULL if the variable is in a hashtable, + * otherwise points to the variable's + * name. It is used, e.g., by TclLookupVar + * and "info locals". The storage for the + * characters of the name is not owned by + * the Var and must not be freed when + * freeing the Var. */ + Namespace *nsPtr; /* Points to the namespace that contains + * this variable or NULL if the variable is + * a local variable in a Tcl procedure. */ + Tcl_HashEntry *hPtr; /* If variable is in a hashtable, either the + * hash table entry that refers to this + * variable or NULL if the variable has been + * detached from its hash table (e.g. an + * array is deleted, but some of its + * elements are still referred to in + * upvars). NULL if the variable is not in a + * hashtable. This is used to delete an + * variable from its hashtable if it is no + * longer needed. */ + int refCount; /* Counts number of active uses of this + * variable, not including its entry in the + * call frame or the hash table: 1 for each + * additional variable whose linkPtr points + * here, 1 for each nested trace active on + * variable, and 1 if the variable is a + * namespace variable. This record can't be + * deleted until refCount becomes 0. */ + VarTrace *tracePtr; /* First in list of all traces set for this + * variable. */ + ArraySearch *searchPtr; /* First in list of all searches active + * for this variable, or NULL if none. */ + int flags; /* Miscellaneous bits of information about + * variable. See below for definitions. */ +} Var; + +/* + * Flag bits for variables. The first three (VAR_SCALAR, VAR_ARRAY, and + * VAR_LINK) are mutually exclusive and give the "type" of the variable. + * VAR_UNDEFINED is independent of the variable's type. + * + * VAR_SCALAR - 1 means this is a scalar variable and not + * an array or link. The "objPtr" field points + * to the variable's value, a Tcl object. + * VAR_ARRAY - 1 means this is an array variable rather + * than a scalar variable or link. The + * "tablePtr" field points to the array's + * hashtable for its elements. + * VAR_LINK - 1 means this Var structure contains a + * pointer to another Var structure that + * either has the real value or is itself + * another VAR_LINK pointer. Variables like + * this come about through "upvar" and "global" + * commands, or through references to variables + * in enclosing namespaces. + * VAR_UNDEFINED - 1 means that the variable is in the process + * of being deleted. An undefined variable + * logically does not exist and survives only + * while it has a trace, or if it is a global + * variable currently being used by some + * procedure. + * VAR_IN_HASHTABLE - 1 means this variable is in a hashtable and + * the Var structure is malloced. 0 if it is + * a local variable that was assigned a slot + * in a procedure frame by the compiler so the + * Var storage is part of the call frame. + * VAR_TRACE_ACTIVE - 1 means that trace processing is currently + * underway for a read or write access, so + * new read or write accesses should not cause + * trace procedures to be called and the + * variable can't be deleted. + * VAR_ARRAY_ELEMENT - 1 means that this variable is an array + * element, so it is not legal for it to be + * an array itself (the VAR_ARRAY flag had + * better not be set). + * VAR_NAMESPACE_VAR - 1 means that this variable was declared + * as a namespace variable. This flag ensures + * it persists until its namespace is + * destroyed or until the variable is unset; + * it will persist even if it has not been + * initialized and is marked undefined. + * The variable's refCount is incremented to + * reflect the "reference" from its namespace. + */ + +#define VAR_SCALAR 0x1 +#define VAR_ARRAY 0x2 +#define VAR_LINK 0x4 +#define VAR_UNDEFINED 0x8 +#define VAR_IN_HASHTABLE 0x10 +#define VAR_TRACE_ACTIVE 0x20 +#define VAR_ARRAY_ELEMENT 0x40 +#define VAR_NAMESPACE_VAR 0x80 + +/* + * Macros to ensure that various flag bits are set properly for variables. + * The ANSI C "prototypes" for these macros are: + * + * EXTERN void TclSetVarScalar _ANSI_ARGS_((Var *varPtr)); + * EXTERN void TclSetVarArray _ANSI_ARGS_((Var *varPtr)); + * EXTERN void TclSetVarLink _ANSI_ARGS_((Var *varPtr)); + * EXTERN void TclSetVarArrayElement _ANSI_ARGS_((Var *varPtr)); + * EXTERN void TclSetVarUndefined _ANSI_ARGS_((Var *varPtr)); + * EXTERN void TclClearVarUndefined _ANSI_ARGS_((Var *varPtr)); + */ + +#define TclSetVarScalar(varPtr) \ + (varPtr)->flags = ((varPtr)->flags & ~(VAR_ARRAY|VAR_LINK)) | VAR_SCALAR + +#define TclSetVarArray(varPtr) \ + (varPtr)->flags = ((varPtr)->flags & ~(VAR_SCALAR|VAR_LINK)) | VAR_ARRAY + +#define TclSetVarLink(varPtr) \ + (varPtr)->flags = ((varPtr)->flags & ~(VAR_SCALAR|VAR_ARRAY)) | VAR_LINK + +#define TclSetVarArrayElement(varPtr) \ + (varPtr)->flags = ((varPtr)->flags & ~VAR_ARRAY) | VAR_ARRAY_ELEMENT + +#define TclSetVarUndefined(varPtr) \ + (varPtr)->flags |= VAR_UNDEFINED + +#define TclClearVarUndefined(varPtr) \ + (varPtr)->flags &= ~VAR_UNDEFINED + +/* + * Macros to read various flag bits of variables. + * The ANSI C "prototypes" for these macros are: + * + * EXTERN int TclIsVarScalar _ANSI_ARGS_((Var *varPtr)); + * EXTERN int TclIsVarLink _ANSI_ARGS_((Var *varPtr)); + * EXTERN int TclIsVarArray _ANSI_ARGS_((Var *varPtr)); + * EXTERN int TclIsVarUndefined _ANSI_ARGS_((Var *varPtr)); + * EXTERN int TclIsVarArrayElement _ANSI_ARGS_((Var *varPtr)); + */ + +#define TclIsVarScalar(varPtr) \ + ((varPtr)->flags & VAR_SCALAR) + +#define TclIsVarLink(varPtr) \ + ((varPtr)->flags & VAR_LINK) + +#define TclIsVarArray(varPtr) \ + ((varPtr)->flags & VAR_ARRAY) + +#define TclIsVarUndefined(varPtr) \ + ((varPtr)->flags & VAR_UNDEFINED) + +#define TclIsVarArrayElement(varPtr) \ + ((varPtr)->flags & VAR_ARRAY_ELEMENT) + +/* + *---------------------------------------------------------------- + * Data structures related to procedures. These are used primarily + * in tclProc.c, tclCompile.c, and tclExecute.c. + *---------------------------------------------------------------- + */ + +/* + * Forward declaration to prevent an error when the forward reference to + * Command is encountered in the Proc and ImportRef types declared below. + */ + +struct Command; + +/* + * The variable-length structure below describes a local variable of a + * procedure that was recognized by the compiler. These variables have a + * name, an element in the array of compiler-assigned local variables in the + * procedure's call frame, and various other items of information. If the + * local variable is a formal argument, it may also have a default value. + * The compiler can't recognize local variables whose names are + * expressions (these names are only known at runtime when the expressions + * are evaluated) or local variables that are created as a result of an + * "upvar" or "uplevel" command. These other local variables are kept + * separately in a hash table in the call frame. + */ + +typedef struct CompiledLocal { + struct CompiledLocal *nextPtr; + /* Next compiler-recognized local variable + * for this procedure, or NULL if this is + * the last local. */ + int nameLength; /* The number of characters in local + * variable's name. Used to speed up + * variable lookups. */ + int frameIndex; /* Index in the array of compiler-assigned + * variables in the procedure call frame. */ + int isArg; /* 1 if the local variable is a formal + * argument. */ + int isTemp; /* 1 if the local variable is an anonymous + * temporary variable. Temporaries have + * a NULL name. */ + int flags; /* Flag bits for the local variable. Same as + * the flags for the Var structure above, + * although only VAR_SCALAR, VAR_ARRAY, and + * VAR_LINK make sense. */ + Tcl_Obj *defValuePtr; /* Pointer to the default value of an + * argument, if any. NULL if not an argument + * or, if an argument, no default value. */ + char name[4]; /* Name of the local variable starts here. + * If the name is NULL, this will just be + * '\0'. The actual size of this field will + * be large enough to hold the name. MUST + * BE THE LAST FIELD IN THE STRUCTURE! */ +} CompiledLocal; + +/* + * The structure below defines a command procedure, which consists of a + * collection of Tcl commands plus information about arguments and other + * local variables recognized at compile time. + */ + +typedef struct Proc { + struct Interp *iPtr; /* Interpreter for which this command + * is defined. */ + int refCount; /* Reference count: 1 if still present + * in command table plus 1 for each call + * to the procedure that is currently + * active. This structure can be freed + * when refCount becomes zero. */ + struct Command *cmdPtr; /* Points to the Command structure for + * this procedure. This is used to get + * the namespace in which to execute + * the procedure. */ + Tcl_Obj *bodyPtr; /* Points to the ByteCode object for + * procedure's body command. */ + int numArgs; /* Number of formal parameters. */ + int numCompiledLocals; /* Count of local variables recognized by + * the compiler including arguments and + * temporaries. */ + CompiledLocal *firstLocalPtr; /* Pointer to first of the procedure's + * compiler-allocated local variables, or + * NULL if none. The first numArgs entries + * in this list describe the procedure's + * formal arguments. */ + CompiledLocal *lastLocalPtr; /* Pointer to the last allocated local + * variable or NULL if none. This has + * frame index (numCompiledLocals-1). */ +} Proc; + +/* + * The structure below defines a command trace. This is used to allow Tcl + * clients to find out whenever a command is about to be executed. + */ + +typedef struct Trace { + int level; /* Only trace commands at nesting level + * less than or equal to this. */ + Tcl_CmdTraceProc *proc; /* Procedure to call to trace command. */ + ClientData clientData; /* Arbitrary value to pass to proc. */ + struct Trace *nextPtr; /* Next in list of traces for this interp. */ +} Trace; + +/* + * The structure below defines an entry in the assocData hash table which + * is associated with an interpreter. The entry contains a pointer to a + * function to call when the interpreter is deleted, and a pointer to + * a user-defined piece of data. + */ + +typedef struct AssocData { + Tcl_InterpDeleteProc *proc; /* Proc to call when deleting. */ + ClientData clientData; /* Value to pass to proc. */ +} AssocData; + +/* + * The structure below defines a call frame. A call frame defines a naming + * context for a procedure call: its local naming scope (for local + * variables) and its global naming scope (a namespace, perhaps 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 kind of Tcl call stack. + * + * WARNING!! The structure definition must be kept consistent with the + * Tcl_CallFrame structure in tcl.h. If you change one, change the other. + */ + +typedef struct CallFrame { + Namespace *nsPtr; /* Points to the namespace used to resolve + * commands and global variables. */ + int isProcCallFrame; /* If nonzero, the frame was pushed to + * execute a Tcl procedure and may have + * local vars. If 0, the frame was pushed + * to execute a namespace command and var + * references are treated as references to + * namespace vars; varTablePtr and + * compiledLocals are ignored. */ + int objc; /* This and objv below describe the + * arguments for this procedure call. */ + Tcl_Obj *CONST *objv; /* Array of argument objects. */ + struct CallFrame *callerPtr; + /* Value of interp->framePtr when this + * procedure was invoked (i.e. next higher + * in stack of all active procedures). */ + struct CallFrame *callerVarPtr; + /* Value of interp->varFramePtr when this + * procedure was invoked (i.e. determines + * variable scoping within caller). Same + * as callerPtr unless an "uplevel" command + * or something equivalent was active in + * the caller). */ + int level; /* Level of this procedure, for "uplevel" + * purposes (i.e. corresponds to nesting of + * callerVarPtr's, not callerPtr's). 1 for + * outermost procedure, 0 for top-level. */ + Proc *procPtr; /* Points to the structure defining the + * called procedure. Used to get information + * such as the number of compiled local + * variables (local variables assigned + * entries ["slots"] in the compiledLocals + * array below). */ + Tcl_HashTable *varTablePtr; /* Hash table containing local variables not + * recognized by the compiler, or created at + * execution time through, e.g., upvar. + * Initially NULL and created if needed. */ + int numCompiledLocals; /* Count of local variables recognized by + * the compiler including arguments. */ + Var* compiledLocals; /* Points to the array of local variables + * recognized by the compiler. The compiler + * emits code that refers to these variables + * using an index into this array. */ +} CallFrame; + +/* + *---------------------------------------------------------------- + * Data structures related to history. These are used primarily + * in tclHistory.c + *---------------------------------------------------------------- + */ + +/* + * The structure below defines one history event (a previously-executed + * command that can be re-executed in whole or in part). + */ + +typedef struct { + char *command; /* String containing previously-executed + * command. */ + int bytesAvl; /* Total # of bytes available at *event (not + * all are necessarily in use now). */ +} HistoryEvent; + +/* + * The structure below defines a pending revision to the most recent + * history event. Changes are linked together into a list and applied + * during the next call to Tcl_RecordHistory. See the comments at the + * beginning of tclHistory.c for information on revisions. + */ + +typedef struct HistoryRev { + int firstIndex; /* Index of the first byte to replace in + * current history event. */ + int lastIndex; /* Index of last byte to replace in + * current history event. */ + int newSize; /* Number of bytes in newBytes. */ + char *newBytes; /* Replacement for the range given by + * firstIndex and lastIndex (malloced). */ + struct HistoryRev *nextPtr; /* Next in chain of revisions to apply, or + * NULL for end of list. */ +} HistoryRev; + +/* + *---------------------------------------------------------------- + * Data structures related to expressions. These are used only in + * tclExpr.c. + *---------------------------------------------------------------- + */ + +/* + * The data structure below defines a math function (e.g. sin or hypot) + * for use in Tcl expressions. + */ + +#define MAX_MATH_ARGS 5 +typedef struct MathFunc { + int builtinFuncIndex; /* If this is a builtin math function, its + * index in the array of builtin functions. + * (tclCompilation.h lists these indices.) + * The value is -1 if this is a new function + * defined by Tcl_CreateMathFunc. The value + * is also -1 if a builtin function is + * replaced by a Tcl_CreateMathFunc call. */ + int numArgs; /* Number of arguments for function. */ + Tcl_ValueType argTypes[MAX_MATH_ARGS]; + /* Acceptable types for each argument. */ + Tcl_MathProc *proc; /* Procedure that implements this function. + * NULL if isBuiltinFunc is 1. */ + ClientData clientData; /* Additional argument to pass to the + * function when invoking it. NULL if + * isBuiltinFunc is 1. */ +} MathFunc; + +/* + *---------------------------------------------------------------- + * Data structures related to bytecode compilation and execution. + * These are used primarily in tclCompile.c, tclExecute.c, and + * tclBasic.c. + *---------------------------------------------------------------- + */ + +/* + * Forward declaration to prevent an error when the forward reference to + * CompileEnv is encountered in the procedure type CompileProc declared + * below. + */ + +struct CompileEnv; + +/* + * The type of procedures called by the Tcl bytecode compiler to compile + * commands. Pointers to these procedures are kept in the Command structure + * describing each command. When a CompileProc returns, the interpreter's + * result is set to error information, if any. In addition, the CompileProc + * returns an integer value, which is one of the following: + * + * TCL_OK Compilation completed normally. + * TCL_ERROR Compilation failed because of an error; + * the interpreter's result describes what went wrong. + * TCL_OUT_LINE_COMPILE Compilation failed because, e.g., the command is + * too complex for effective inline compilation. The + * CompileProc believes the command is legal but + * should be compiled "out of line" by emitting code + * to invoke its command procedure at runtime. + */ + +#define TCL_OUT_LINE_COMPILE (TCL_CONTINUE + 1) + +typedef int (CompileProc) _ANSI_ARGS_((Tcl_Interp *interp, char *string, + char *lastChar, int compileFlags, struct CompileEnv *compEnvPtr)); + +/* + * The data structure defining the execution environment for ByteCode's. + * There is one ExecEnv structure per Tcl interpreter. It holds the + * evaluation stack that holds command operands and results. The stack grows + * towards increasing addresses. The "stackTop" member is cached by + * TclExecuteByteCode in a local variable: it must be set before calling + * TclExecuteByteCode and will be restored by TclExecuteByteCode before it + * returns. + */ + +typedef union StackItem { + Tcl_Obj *o; /* Stack item as a pointer to a Tcl_Obj. */ + int i; /* Stack item as an integer. */ + VOID *p; /* Stack item as an arbitrary pointer. */ +} StackItem; + +typedef struct ExecEnv { + StackItem *stackPtr; /* Points to the first item in the + * evaluation stack on the heap. */ + int stackTop; /* Index of current top of stack; -1 when + * the stack is empty. */ + int stackEnd; /* Index of last usable item in stack. */ +} ExecEnv; + +/* + *---------------------------------------------------------------- + * Data structures related to commands. + *---------------------------------------------------------------- + */ + +/* + * An imported command is created in an namespace when it imports a "real" + * command from another namespace. An imported command has a Command + * structure that points (via its ClientData value) to the "real" Command + * structure in the source namespace's command table. The real command + * records all the imported commands that refer to it in a list of ImportRef + * structures so that they can be deleted when the real command is deleted. */ + +typedef struct ImportRef { + struct Command *importedCmdPtr; + /* Points to the imported command created in + * an importing namespace; this command + * redirects its invocations to the "real" + * command. */ + struct ImportRef *nextPtr; /* Next element on the linked list of + * imported commands that refer to the + * "real" command. The real command deletes + * these imported commands on this list when + * it is deleted. */ +} ImportRef; + +/* + * A Command structure exists for each command in a namespace. The + * Tcl_Command opaque type actually refers to these structures. + */ + +typedef struct Command { + Tcl_HashEntry *hPtr; /* Pointer to the hash table entry that + * refers to this command. The hash table is + * either a namespace's command table or an + * interpreter's hidden command table. This + * pointer is used to get a command's name + * from its Tcl_Command handle. NULL means + * that the hash table entry has been + * removed already (this can happen if + * deleteProc causes the command to be + * deleted or recreated). */ + Namespace *nsPtr; /* Points to the namespace containing this + * command. */ + int refCount; /* 1 if in command hashtable plus 1 for each + * reference from a CmdName Tcl object + * representing a command's name in a + * ByteCode instruction sequence. This + * structure can be freed when refCount + * becomes zero. */ + int cmdEpoch; /* Incremented to invalidate any references + * that point to this command when it is + * renamed, deleted, hidden, or exposed. */ + CompileProc *compileProc; /* Procedure called to compile command. NULL + * if no compile proc exists for command. */ + Tcl_ObjCmdProc *objProc; /* Object-based command procedure. */ + ClientData objClientData; /* Arbitrary value passed to object proc. */ + Tcl_CmdProc *proc; /* String-based command procedure. */ + ClientData clientData; /* Arbitrary value passed to string proc. */ + Tcl_CmdDeleteProc *deleteProc; + /* Procedure invoked when deleting command + * to, e.g., free all client data. */ + ClientData deleteData; /* Arbitrary value passed to deleteProc. */ + int deleted; /* Means that the command is in the process + * of being deleted (its deleteProc is + * currently executing). Other attempts to + * delete the command should be ignored. */ + ImportRef *importRefPtr; /* List of each imported Command created in + * another namespace when this command is + * imported. These imported commands + * redirect invocations back to this + * command. The list is used to remove all + * those imported commands when deleting + * this "real" command. */ +} Command; + +/* + *---------------------------------------------------------------- + * This structure defines an interpreter, which is a collection of + * commands plus other state information related to interpreting + * commands, such as variable storage. Primary responsibility for + * this data structure is in tclBasic.c, but almost every Tcl + * source file uses something in here. + *---------------------------------------------------------------- + */ + +typedef struct Interp { + + /* + * Note: the first three fields must match exactly the fields in + * a Tcl_Interp struct (see tcl.h). If you change one, be sure to + * change the other. + * + * The interpreter's result is held in both the string and the + * objResultPtr fields. These fields hold, respectively, the result's + * string or object value. The interpreter's result is always in the + * result field if that is non-empty, otherwise it is in objResultPtr. + * The two fields are kept consistent unless some C code sets + * interp->result directly. Programs should not access result and + * objResultPtr directly; instead, they should always get and set the + * result using procedures such as Tcl_SetObjResult, Tcl_GetObjResult, + * and Tcl_GetStringResult. See the SetResult man page for details. + */ + + char *result; /* If the last command returned a string + * result, this points to it. Should not be + * accessed directly; see comment above. */ + Tcl_FreeProc *freeProc; /* Zero means a string result is statically + * allocated. TCL_DYNAMIC means string + * result was allocated with ckalloc and + * should be freed with ckfree. Other values + * give address of procedure to invoke to + * free the string result. Tcl_Eval must + * free it before executing next command. */ + int errorLine; /* When TCL_ERROR is returned, this gives + * the line number in the command where the + * error occurred (1 means first line). */ + Tcl_Obj *objResultPtr; /* If the last command returned an object + * result, this points to it. Should not be + * accessed directly; see comment above. */ + Namespace *globalNsPtr; /* The interpreter's global namespace. */ + Tcl_HashTable mathFuncTable;/* Contains all the math functions currently + * defined for the interpreter. Indexed by + * strings (function names); values have + * type (MathFunc *). */ + + /* + * Information related to procedures and variables. See tclProc.c + * and tclvar.c for usage. + */ + + int numLevels; /* Keeps track of how many nested calls to + * Tcl_Eval are in progress for this + * interpreter. It's used to delay deletion + * of the table until all Tcl_Eval + * invocations are completed. */ + int maxNestingDepth; /* If numLevels exceeds this value then Tcl + * assumes that infinite recursion has + * occurred and it generates an error. */ + CallFrame *framePtr; /* Points to top-most in stack of all nested + * procedure invocations. NULL means there + * are no active procedures. */ + CallFrame *varFramePtr; /* Points to the call frame whose variables + * are currently in use (same as framePtr + * unless an "uplevel" command is + * executing). NULL means no procedure is + * active or "uplevel 0" is executing. */ + ActiveVarTrace *activeTracePtr; + /* First in list of active traces for + * interp, or NULL if no active traces. */ + int returnCode; /* Completion code to return if current + * procedure exits with TCL_RETURN code. */ + char *errorInfo; /* Value to store in errorInfo if returnCode + * is TCL_ERROR. Malloc'ed, may be NULL */ + char *errorCode; /* Value to store in errorCode if returnCode + * is TCL_ERROR. Malloc'ed, may be NULL */ + + /* + * Information used by Tcl_AppendResult to keep track of partial + * results. See Tcl_AppendResult code for details. + */ + + char *appendResult; /* Storage space for results generated + * by Tcl_AppendResult. Malloc-ed. NULL + * means not yet allocated. */ + int appendAvl; /* Total amount of space available at + * partialResult. */ + int appendUsed; /* Number of non-null bytes currently + * stored at partialResult. */ + + /* + * A cache of compiled regular expressions. See Tcl_RegExpCompile + * in tclUtil.c for details. + */ + +#define NUM_REGEXPS 5 + char *patterns[NUM_REGEXPS];/* Strings corresponding to compiled + * regular expression patterns. NULL + * means that this slot isn't used. + * Malloc-ed. */ + int patLengths[NUM_REGEXPS];/* Number of non-null characters in + * corresponding entry in patterns. + * -1 means entry isn't used. */ + regexp *regexps[NUM_REGEXPS]; + /* Compiled forms of above strings. Also + * malloc-ed, or NULL if not in use yet. */ + + /* + * Information about packages. Used only in tclPkg.c. + */ + + Tcl_HashTable packageTable; /* Describes all of the packages loaded + * in or available to this interpreter. + * Keys are package names, values are + * (Package *) pointers. */ + char *packageUnknown; /* Command to invoke during "package + * require" commands for packages that + * aren't described in packageTable. + * Malloc'ed, may be NULL. */ + + /* + * Miscellaneous information: + */ + + int cmdCount; /* Total number of times a command procedure + * has been called for this interpreter. */ + int evalFlags; /* Flags to control next call to Tcl_Eval. + * Normally zero, but may be set before + * calling Tcl_Eval. See below for valid + * values. */ + int termOffset; /* Offset of character just after last one + * compiled or executed by Tcl_EvalObj. */ + int compileEpoch; /* Holds the current "compilation epoch" + * for this interpreter. This is + * incremented to invalidate existing + * ByteCodes when, e.g., a command with a + * compile procedure is redefined. */ + Proc *compiledProcPtr; /* If a procedure is being compiled, a + * pointer to its Proc structure; otherwise, + * this is NULL. Set by ObjInterpProc in + * tclProc.c and used by tclCompile.c to + * process local variables appropriately. */ + char *scriptFile; /* NULL means there is no nested source + * command active; otherwise this points to + * the name of the file being sourced (it's + * not malloc-ed: it points to an argument + * to Tcl_EvalFile. */ + int flags; /* Various flag bits. See below. */ + long randSeed; /* Seed used for rand() function. */ + Trace *tracePtr; /* List of traces for this interpreter. */ + Tcl_HashTable *assocData; /* Hash table for associating data with + * this interpreter. Cleaned up when + * this interpreter is deleted. */ + struct ExecEnv *execEnvPtr; /* Execution environment for Tcl bytecode + * execution. Contains a pointer to the + * Tcl evaluation stack. */ + Tcl_Obj *emptyObjPtr; /* Points to an object holding an empty + * string. Returned by Tcl_ObjSetVar2 when + * variable traces change a variable in a + * gross way. */ + char resultSpace[TCL_RESULT_SIZE+1]; + /* Static space holding small results. */ +} Interp; + +/* + * EvalFlag bits for Interp structures: + * + * TCL_BRACKET_TERM 1 means that the current script is terminated by + * a close bracket rather than the end of the string. + * TCL_ALLOW_EXCEPTIONS 1 means it's OK for the script to terminate with + * a code other than TCL_OK or TCL_ERROR; 0 means + * codes other than these should be turned into errors. + */ + +#define TCL_BRACKET_TERM 1 +#define TCL_ALLOW_EXCEPTIONS 4 + +/* + * Flag bits for Interp structures: + * + * DELETED: Non-zero means the interpreter has been deleted: + * don't process any more commands for it, and destroy + * the structure as soon as all nested invocations of + * Tcl_Eval are done. + * ERR_IN_PROGRESS: Non-zero means an error unwind is already in + * progress. Zero means a command proc has been + * invoked since last error occured. + * ERR_ALREADY_LOGGED: Non-zero means information has already been logged + * in $errorInfo for the current Tcl_Eval instance, + * so Tcl_Eval needn't log it (used to implement the + * "error message log" command). + * ERROR_CODE_SET: Non-zero means that Tcl_SetErrorCode has been + * called to record information for the current + * error. Zero means Tcl_Eval must clear the + * errorCode variable if an error is returned. + * EXPR_INITIALIZED: Non-zero means initialization specific to + * expressions has been carried out. + * DONT_COMPILE_CMDS_INLINE: Non-zero means that the bytecode compiler + * should not compile any commands into an inline + * sequence of instructions. This is set 1, for + * example, when command traces are requested. + * RAND_SEED_INITIALIZED: Non-zero means that the randSeed value of the + * interp has not be initialized. This is set 1 + * when we first use the rand() or srand() functions. + * SAFE_INTERP: Non zero means that the current interp is a + * safe interp (ie it has only the safe commands + * installed, less priviledge than a regular interp). + */ + +#define DELETED 1 +#define ERR_IN_PROGRESS 2 +#define ERR_ALREADY_LOGGED 4 +#define ERROR_CODE_SET 8 +#define EXPR_INITIALIZED 0x10 +#define DONT_COMPILE_CMDS_INLINE 0x20 +#define RAND_SEED_INITIALIZED 0x40 +#define SAFE_INTERP 0x80 + +/* + *---------------------------------------------------------------- + * Data structures related to command parsing. These are used in + * tclParse.c and its clients. + *---------------------------------------------------------------- + */ + +/* + * The following data structure is used by various parsing procedures + * to hold information about where to store the results of parsing + * (e.g. the substituted contents of a quoted argument, or the result + * of a nested command). At any given time, the space available + * for output is fixed, but a procedure may be called to expand the + * space available if the current space runs out. + */ + +typedef struct ParseValue { + char *buffer; /* Address of first character in + * output buffer. */ + char *next; /* Place to store next character in + * output buffer. */ + char *end; /* Address of the last usable character + * in the buffer. */ + void (*expandProc) _ANSI_ARGS_((struct ParseValue *pvPtr, int needed)); + /* Procedure to call when space runs out; + * it will make more space. */ + ClientData clientData; /* Arbitrary information for use of + * expandProc. */ +} ParseValue; + +/* + * A table used to classify input characters to assist in parsing + * Tcl commands. The table should be indexed with a signed character + * using the CHAR_TYPE macro. The character may have a negative + * value. The CHAR_TYPE macro takes a pointer to a signed character + * and a pointer to the last character in the source string. If the + * src pointer is pointing at the terminating null of the string, + * CHAR_TYPE returns TCL_COMMAND_END. + */ + +extern unsigned char tclTypeTable[]; +#define CHAR_TYPE(src,last) \ + (((src)==(last))?TCL_COMMAND_END:(tclTypeTable+128)[*(src)]) + +/* + * Possible values returned by CHAR_TYPE. Note that except for TCL_DOLLAR, + * these are all one byte values with a single bit set 1. This means these + * values may be bit-or'ed together (except for TCL_DOLLAR) to quickly test + * whether a character is one of several different kinds of characters. + * + * TCL_NORMAL - All characters that don't have special significance + * to the Tcl language. + * TCL_SPACE - Character is space, tab, or return. + * TCL_COMMAND_END - Character is newline or semicolon or close-bracket + * or terminating null. + * TCL_QUOTE - Character is a double-quote. + * TCL_OPEN_BRACKET - Character is a "[". + * TCL_OPEN_BRACE - Character is a "{". + * TCL_CLOSE_BRACE - Character is a "}". + * TCL_BACKSLASH - Character is a "\". + * TCL_DOLLAR - Character is a "$". + */ + +#define TCL_NORMAL 0x01 +#define TCL_SPACE 0x02 +#define TCL_COMMAND_END 0x04 +#define TCL_QUOTE 0x08 +#define TCL_OPEN_BRACKET 0x10 +#define TCL_OPEN_BRACE 0x20 +#define TCL_CLOSE_BRACE 0x40 +#define TCL_BACKSLASH 0x80 +#define TCL_DOLLAR 0x00 + +/* + * Maximum number of levels of nesting permitted in Tcl commands (used + * to catch infinite recursion). + */ + +#define MAX_NESTING_DEPTH 1000 + +/* + * The macro below is used to modify a "char" value (e.g. by casting + * it to an unsigned character) so that it can be used safely with + * macros such as isspace. + */ + +#define UCHAR(c) ((unsigned char) (c)) + +/* + * This macro is used to determine the offset needed to safely allocate any + * data structure in memory. Given a starting offset or size, it "rounds up" + * or "aligns" the offset to the next 8-byte boundary so that any data + * structure can be placed at the resulting offset without fear of an + * alignment error. + * + * WARNING!! DO NOT USE THIS MACRO TO ALIGN POINTERS: it will produce + * the wrong result on platforms that allocate addresses that are divisible + * by 4 or 2. Only use it for offsets or sizes. + */ + +#define TCL_ALIGN(x) (((int)(x) + 7) & ~7) + +/* + * The following macros are used to specify the runtime platform + * setting of the tclPlatform variable. + */ + +typedef enum { + TCL_PLATFORM_UNIX, /* Any Unix-like OS. */ + TCL_PLATFORM_MAC, /* MacOS. */ + TCL_PLATFORM_WINDOWS /* Any Microsoft Windows OS. */ +} TclPlatformType; + +/* + * Flags for TclInvoke: + * + * TCL_INVOKE_HIDDEN Invoke a hidden command; if not set, + * invokes an exposed command. + * TCL_INVOKE_NO_UNKNOWN If set, "unknown" is not invoked if + * the command to be invoked is not found. + * Only has an effect if invoking an exposed + * command, i.e. if TCL_INVOKE_HIDDEN is not + * also set. + */ + +#define TCL_INVOKE_HIDDEN (1<<0) +#define TCL_INVOKE_NO_UNKNOWN (1<<1) + +/* + * The structure used as the internal representation of Tcl list + * objects. This is an array of pointers to the element objects. This array + * is grown (reallocated and copied) as necessary to hold all the list's + * element pointers. The array might contain more slots than currently used + * to hold all element pointers. This is done to make append operations + * faster. + */ + +typedef struct List { + int maxElemCount; /* Total number of element array slots. */ + int elemCount; /* Current number of list elements. */ + Tcl_Obj **elements; /* Array of pointers to element objects. */ +} List; + +/* + * The following types are used for getting and storing platform-specific + * file attributes in tclFCmd.c and the various platform-versions of + * that file. This is done to have as much common code as possible + * in the file attributes code. For more information about the callbacks, + * see TclFileAttrsCmd in tclFCmd.c. + */ + +typedef int (TclGetFileAttrProc) _ANSI_ARGS_((Tcl_Interp *interp, + int objIndex, char *fileName, + Tcl_Obj **attrObjPtrPtr)); +typedef int (TclSetFileAttrProc) _ANSI_ARGS_((Tcl_Interp *interp, + int objIndex, char *fileName, + Tcl_Obj *attrObjPtr)); + +typedef struct TclFileAttrProcs { + TclGetFileAttrProc *getProc; /* The procedure for getting attrs. */ + TclSetFileAttrProc *setProc; /* The procedure for setting attrs. */ +} TclFileAttrProcs; + +/* + * Opaque handle used in pipeline routines to encapsulate platform-dependent + * state. + */ + +typedef struct TclFile_ *TclFile; + +/* + *---------------------------------------------------------------- + * Variables shared among Tcl modules but not used by the outside world. + *---------------------------------------------------------------- + */ + +extern Tcl_Time tclBlockTime; +extern int tclBlockTimeSet; +extern char * tclExecutableName; +extern Tcl_ChannelType tclFileChannelType; +extern char * tclMemDumpFileName; +extern TclPlatformType tclPlatform; +extern char * tclpFileAttrStrings[]; +extern CONST TclFileAttrProcs tclpFileAttrProcs[]; + +/* + * Variables denoting the Tcl object types defined in the core. + */ + +extern Tcl_ObjType tclBooleanType; +extern Tcl_ObjType tclByteCodeType; +extern Tcl_ObjType tclDoubleType; +extern Tcl_ObjType tclIntType; +extern Tcl_ObjType tclListType; +extern Tcl_ObjType tclStringType; + +/* + * The head of the list of free Tcl objects, and the total number of Tcl + * objects ever allocated and freed. + */ + +extern Tcl_Obj * tclFreeObjList; + +#ifdef TCL_COMPILE_STATS +extern long tclObjsAlloced; +extern long tclObjsFreed; +#endif /* TCL_COMPILE_STATS */ + +/* + * Pointer to a heap-allocated string of length zero that the Tcl core uses + * as the value of an empty string representation for an object. This value + * is shared by all new objects allocated by Tcl_NewObj. + */ + +extern char * tclEmptyStringRep; + +/* + *---------------------------------------------------------------- + * Procedures shared among Tcl modules but not used by the outside + * world: + *---------------------------------------------------------------- + */ + +EXTERN void panic _ANSI_ARGS_(TCL_VARARGS(char *,format)); +EXTERN void TclAllocateFreeObjects _ANSI_ARGS_((void)); +EXTERN int TclChdir _ANSI_ARGS_((Tcl_Interp *interp, + char *dirName)); +EXTERN int TclCleanupChildren _ANSI_ARGS_((Tcl_Interp *interp, + int numPids, Tcl_Pid *pidPtr, + Tcl_Channel errorChan)); +EXTERN void TclCleanupCommand _ANSI_ARGS_((Command *cmdPtr)); +EXTERN char * TclConvertToNative _ANSI_ARGS_((Tcl_Interp *interp, + char *name, Tcl_DString *bufferPtr)); +EXTERN char * TclConvertToNetwork _ANSI_ARGS_((Tcl_Interp *interp, + char *name, Tcl_DString *bufferPtr)); +EXTERN int TclCopyAndCollapse _ANSI_ARGS_((int count, + char *src, char *dst)); +EXTERN int TclCopyChannel _ANSI_ARGS_((Tcl_Interp *interp, + Tcl_Channel inChan, Tcl_Channel outChan, + int toRead, Tcl_Obj *cmdPtr)); +/* + * TclCreatePipeline unofficially exported for use by BLT. + */ +EXTERN int TclCreatePipeline _ANSI_ARGS_((Tcl_Interp *interp, + int argc, char **argv, Tcl_Pid **pidArrayPtr, + TclFile *inPipePtr, TclFile *outPipePtr, + TclFile *errFilePtr)); +EXTERN int TclCreateProc _ANSI_ARGS_((Tcl_Interp *interp, + Namespace *nsPtr, char *procName, + Tcl_Obj *argsPtr, Tcl_Obj *bodyPtr, + Proc **procPtrPtr)); +EXTERN void TclDeleteCompiledLocalVars _ANSI_ARGS_(( + Interp *iPtr, CallFrame *framePtr)); +EXTERN void TclDeleteVars _ANSI_ARGS_((Interp *iPtr, + Tcl_HashTable *tablePtr)); +EXTERN int TclDoGlob _ANSI_ARGS_((Tcl_Interp *interp, + char *separators, Tcl_DString *headPtr, + char *tail)); +EXTERN void TclDumpMemoryInfo _ANSI_ARGS_((FILE *outFile)); +EXTERN void TclExpandParseValue _ANSI_ARGS_((ParseValue *pvPtr, + int needed)); +EXTERN void TclExprFloatError _ANSI_ARGS_((Tcl_Interp *interp, + double value)); +EXTERN int TclFileAttrsCmd _ANSI_ARGS_((Tcl_Interp *interp, + int objc, Tcl_Obj *CONST objv[])); +EXTERN int TclFileCopyCmd _ANSI_ARGS_((Tcl_Interp *interp, + int argc, char **argv)) ; +EXTERN int TclFileDeleteCmd _ANSI_ARGS_((Tcl_Interp *interp, + int argc, char **argv)); +EXTERN int TclFileMakeDirsCmd _ANSI_ARGS_((Tcl_Interp *interp, + int argc, char **argv)) ; +EXTERN int TclFileRenameCmd _ANSI_ARGS_((Tcl_Interp *interp, + int argc, char **argv)) ; +EXTERN void TclFinalizeCompExecEnv _ANSI_ARGS_((void)); +EXTERN void TclFinalizeEnvironment _ANSI_ARGS_((void)); +EXTERN void TclFinalizeExecEnv _ANSI_ARGS_((void)); +EXTERN int TclFindElement _ANSI_ARGS_((Tcl_Interp *interp, + char *list, int listLength, char **elementPtr, + char **nextPtr, int *sizePtr, int *bracePtr)); +EXTERN Proc * TclFindProc _ANSI_ARGS_((Interp *iPtr, + char *procName)); +EXTERN int TclFormatInt _ANSI_ARGS_((char *buffer, long n)); +EXTERN void TclFreePackageInfo _ANSI_ARGS_((Interp *iPtr)); +EXTERN void TclGetAndDetachPids _ANSI_ARGS_((Tcl_Interp *interp, + Tcl_Channel chan)); +EXTERN char * TclGetCwd _ANSI_ARGS_((Tcl_Interp *interp)); +EXTERN int TclGetDate _ANSI_ARGS_((char *p, + unsigned long now, long zone, + unsigned long *timePtr)); +EXTERN Tcl_Channel TclGetDefaultStdChannel _ANSI_ARGS_((int type)); +EXTERN Tcl_Obj * TclGetElementOfIndexedArray _ANSI_ARGS_(( + Tcl_Interp *interp, int localIndex, + Tcl_Obj *elemPtr, int leaveErrorMsg)); +EXTERN char * TclGetEnv _ANSI_ARGS_((CONST char *name)); +EXTERN char * TclGetExtension _ANSI_ARGS_((char *name)); +EXTERN int TclGetFrame _ANSI_ARGS_((Tcl_Interp *interp, + char *string, CallFrame **framePtrPtr)); +EXTERN int TclGetIdleGeneration _ANSI_ARGS_((void)); +EXTERN int TclGetIntForIndex _ANSI_ARGS_((Tcl_Interp *interp, + Tcl_Obj *objPtr, int endValue, int *indexPtr)); +EXTERN Tcl_Obj * TclGetIndexedScalar _ANSI_ARGS_((Tcl_Interp *interp, + int localIndex, int leaveErrorMsg)); +EXTERN int TclGetLong _ANSI_ARGS_((Tcl_Interp *interp, + char *string, long *longPtr)); +EXTERN int TclGetLoadedPackages _ANSI_ARGS_(( + Tcl_Interp *interp, char *targetName)); +EXTERN int TclGetNamespaceForQualName _ANSI_ARGS_(( + Tcl_Interp *interp, char *qualName, + Namespace *cxtNsPtr, int flags, + Namespace **nsPtrPtr, Namespace **altNsPtrPtr, + Namespace **actualCxtPtrPtr, + char **simpleNamePtr)); +EXTERN int TclGetOpenMode _ANSI_ARGS_((Tcl_Interp *interp, + char *string, int *seekFlagPtr)); +EXTERN Tcl_Command TclGetOriginalCommand _ANSI_ARGS_(( + Tcl_Command command)); +EXTERN char * TclGetUserHome _ANSI_ARGS_((char *name, + Tcl_DString *bufferPtr)); +EXTERN int TclGlobalInvoke _ANSI_ARGS_((Tcl_Interp *interp, + int argc, char **argv, int flags)); +EXTERN int TclGuessPackageName _ANSI_ARGS_((char *fileName, + Tcl_DString *bufPtr)); +EXTERN int TclHasPipes _ANSI_ARGS_((void)); +EXTERN int TclHasSockets _ANSI_ARGS_((Tcl_Interp *interp)); +EXTERN int TclHideUnsafeCommands _ANSI_ARGS_(( + Tcl_Interp *interp)); +EXTERN int TclIdlePending _ANSI_ARGS_((void)); +EXTERN int TclInExit _ANSI_ARGS_((void)); +EXTERN Tcl_Obj * TclIncrElementOfIndexedArray _ANSI_ARGS_(( + Tcl_Interp *interp, int localIndex, + Tcl_Obj *elemPtr, long incrAmount)); +EXTERN Tcl_Obj * TclIncrIndexedScalar _ANSI_ARGS_(( + Tcl_Interp *interp, int localIndex, + long incrAmount)); +EXTERN Tcl_Obj * TclIncrVar2 _ANSI_ARGS_((Tcl_Interp *interp, + Tcl_Obj *part1Ptr, Tcl_Obj *part2Ptr, + long incrAmount, int part1NotParsed)); +EXTERN void TclInitNamespaces _ANSI_ARGS_((void)); +EXTERN int TclInterpInit _ANSI_ARGS_((Tcl_Interp *interp)); +EXTERN int TclInvoke _ANSI_ARGS_((Tcl_Interp *interp, + int argc, char **argv, int flags)); +EXTERN int TclInvokeObjectCommand _ANSI_ARGS_(( + ClientData clientData, Tcl_Interp *interp, + int argc, char **argv)); +EXTERN int TclInvokeStringCommand _ANSI_ARGS_(( + ClientData clientData, Tcl_Interp *interp, + int objc, Tcl_Obj *CONST objv[])); +EXTERN Proc * TclIsProc _ANSI_ARGS_((Command *cmdPtr)); +EXTERN int TclLoadFile _ANSI_ARGS_((Tcl_Interp *interp, + char *fileName, char *sym1, char *sym2, + Tcl_PackageInitProc **proc1Ptr, + Tcl_PackageInitProc **proc2Ptr)); +EXTERN int TclLooksLikeInt _ANSI_ARGS_((char *p)); +EXTERN Var * TclLookupVar _ANSI_ARGS_((Tcl_Interp *interp, + char *part1, char *part2, int flags, char *msg, + int createPart1, int createPart2, + Var **arrayPtrPtr)); +EXTERN int TclMakeFileTable _ANSI_ARGS_((Tcl_Interp *interp, + int noStdio)); +EXTERN int TclMatchFiles _ANSI_ARGS_((Tcl_Interp *interp, + char *separators, Tcl_DString *dirPtr, + char *pattern, char *tail)); +EXTERN int TclNeedSpace _ANSI_ARGS_((char *start, char *end)); +EXTERN int TclObjCommandComplete _ANSI_ARGS_((Tcl_Obj *cmdPtr)); +EXTERN int TclObjInterpProc _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int objc, + Tcl_Obj *CONST objv[])); +EXTERN int TclObjInvoke _ANSI_ARGS_((Tcl_Interp *interp, + int objc, Tcl_Obj *CONST objv[], int flags)); +EXTERN int TclObjInvokeGlobal _ANSI_ARGS_((Tcl_Interp *interp, + int objc, Tcl_Obj *CONST objv[], int flags)); +EXTERN char * TclpAlloc _ANSI_ARGS_((unsigned int size)); + +/* + * On a Mac, we can exit gracefully if the stack gets too small. + */ + +#ifdef MAC_TCL +EXTERN int TclpCheckStackSpace _ANSI_ARGS_((void)); +#else +#define TclpCheckStackSpace() (1) +#endif + +EXTERN int TclpCloseFile _ANSI_ARGS_((TclFile file)); +EXTERN int TclpCopyFile _ANSI_ARGS_((char *source, char *dest)); +EXTERN int TclpCopyDirectory _ANSI_ARGS_((char *source, + char *dest, Tcl_DString *errorPtr)); +EXTERN Tcl_Channel TclpCreateCommandChannel _ANSI_ARGS_(( + TclFile readFile, TclFile writeFile, + TclFile errorFile, int numPids, Tcl_Pid *pidPtr)); +EXTERN int TclpCreateDirectory _ANSI_ARGS_((char *path)); +EXTERN int TclpCreatePipe _ANSI_ARGS_((TclFile *readPipe, + TclFile *writePipe)); +EXTERN int TclpCreateProcess _ANSI_ARGS_((Tcl_Interp *interp, + int argc, char **argv, TclFile inputFile, + TclFile outputFile, TclFile errorFile, + Tcl_Pid *pidPtr)); +EXTERN TclFile TclpCreateTempFile _ANSI_ARGS_((char *contents, + Tcl_DString *namePtr)); +EXTERN int TclpDeleteFile _ANSI_ARGS_((char *path)); +EXTERN void TclpFree _ANSI_ARGS_((char *ptr)); +EXTERN unsigned long TclpGetClicks _ANSI_ARGS_((void)); +EXTERN unsigned long TclpGetSeconds _ANSI_ARGS_((void)); +EXTERN void TclpGetTime _ANSI_ARGS_((Tcl_Time *time)); +EXTERN int TclpGetTimeZone _ANSI_ARGS_((unsigned long time)); +EXTERN char * TclpGetTZName _ANSI_ARGS_((void)); +EXTERN int TclpListVolumes _ANSI_ARGS_((Tcl_Interp *interp)); +EXTERN TclFile TclpMakeFile _ANSI_ARGS_((Tcl_Channel channel, + int direction)); +EXTERN TclFile TclpOpenFile _ANSI_ARGS_((char *fname, int mode)); +EXTERN char * TclpRealloc _ANSI_ARGS_((char *ptr, + unsigned int size)); +EXTERN int TclpRemoveDirectory _ANSI_ARGS_((char *path, + int recursive, Tcl_DString *errorPtr)); +EXTERN int TclpRenameFile _ANSI_ARGS_((char *source, char *dest)); +EXTERN char * TclpSetEnv _ANSI_ARGS_((CONST char *name, + CONST char *value)); +#ifndef TclpSysAlloc +EXTERN VOID * TclpSysAlloc _ANSI_ARGS_((long size, int isBin)); +#endif +#ifndef TclpSysFree +EXTERN void TclpSysFree _ANSI_ARGS_((VOID *ptr)); +#endif +#ifndef TclpSysRealloc +EXTERN VOID * TclpSysRealloc _ANSI_ARGS_((VOID *cp, + unsigned int size)); +#endif +EXTERN int TclParseBraces _ANSI_ARGS_((Tcl_Interp *interp, + char *string, char **termPtr, ParseValue *pvPtr)); +EXTERN int TclParseNestedCmd _ANSI_ARGS_((Tcl_Interp *interp, + char *string, int flags, char **termPtr, + ParseValue *pvPtr)); +EXTERN int TclParseQuotes _ANSI_ARGS_((Tcl_Interp *interp, + char *string, int termChar, int flags, + char **termPtr, ParseValue *pvPtr)); +EXTERN void TclPlatformExit _ANSI_ARGS_((int status)); +EXTERN void TclPlatformInit _ANSI_ARGS_((Tcl_Interp *interp)); +EXTERN char * TclPrecTraceProc _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, char *name1, char *name2, + int flags)); +EXTERN int TclPreventAliasLoop _ANSI_ARGS_((Tcl_Interp *interp, + Tcl_Interp *cmdInterp, Tcl_Command cmd)); +EXTERN void TclPrintByteCodeObj _ANSI_ARGS_((Tcl_Interp *interp, + Tcl_Obj *objPtr)); +EXTERN int TclRenameCommand _ANSI_ARGS_((Tcl_Interp *interp, + char *oldName, char *newName)) ; +EXTERN void TclResetShadowedCmdRefs _ANSI_ARGS_(( + Tcl_Interp *interp, Command *newCmdPtr)); +EXTERN int TclServiceIdle _ANSI_ARGS_((void)); +EXTERN Tcl_Obj * TclSetElementOfIndexedArray _ANSI_ARGS_(( + Tcl_Interp *interp, int localIndex, + Tcl_Obj *elemPtr, Tcl_Obj *objPtr, + int leaveErrorMsg)); +EXTERN Tcl_Obj * TclSetIndexedScalar _ANSI_ARGS_((Tcl_Interp *interp, + int localIndex, Tcl_Obj *objPtr, + int leaveErrorMsg)); +EXTERN void TclSetupEnv _ANSI_ARGS_((Tcl_Interp *interp)); +EXTERN int TclSockGetPort _ANSI_ARGS_((Tcl_Interp *interp, + char *string, char *proto, int *portPtr)); +EXTERN int TclSockMinimumBuffers _ANSI_ARGS_((int sock, + int size)); +EXTERN void TclTeardownNamespace _ANSI_ARGS_((Namespace *nsPtr)); +EXTERN int TclTestChannelCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int argc, char **argv)); +EXTERN int TclTestChannelEventCmd _ANSI_ARGS_(( + ClientData clientData, Tcl_Interp *interp, + int argc, char **argv)); +EXTERN int TclUpdateReturnInfo _ANSI_ARGS_((Interp *iPtr)); +EXTERN char * TclWordEnd _ANSI_ARGS_((char *start, char *lastChar, + int nested, int *semiPtr)); + +/* + *---------------------------------------------------------------- + * Command procedures in the generic core: + *---------------------------------------------------------------- + */ + +EXTERN int Tcl_AfterObjCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[])); +EXTERN int Tcl_AppendObjCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[])); +EXTERN int Tcl_ArrayObjCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[])); +EXTERN int Tcl_BinaryObjCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[])); +EXTERN int Tcl_BreakCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int argc, char **argv)); +EXTERN int Tcl_CaseObjCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[])); +EXTERN int Tcl_CatchObjCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[])); +EXTERN int Tcl_CdObjCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[])); +EXTERN int Tcl_ClockObjCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[])); +EXTERN int Tcl_CloseObjCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[])); +EXTERN int Tcl_ConcatObjCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[])); +EXTERN int Tcl_ContinueCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int argc, char **argv)); +EXTERN int Tcl_EofObjCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[])); +EXTERN int Tcl_ErrorObjCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[])); +EXTERN int Tcl_EvalObjCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[])); +EXTERN int Tcl_ExecCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int argc, char **argv)); +EXTERN int Tcl_ExitObjCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[])); +EXTERN int Tcl_ExprObjCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[])); +EXTERN int Tcl_FblockedObjCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[])); +EXTERN int Tcl_FconfigureCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int argc, char **argv)); +EXTERN int Tcl_FcopyObjCmd _ANSI_ARGS_((ClientData dummy, + Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[])); +EXTERN int Tcl_FileObjCmd _ANSI_ARGS_((ClientData dummy, + Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[])); +EXTERN int Tcl_FileEventCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int argc, char **argv)); +EXTERN int Tcl_FlushObjCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[])); +EXTERN int Tcl_ForCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int argc, char **argv)); +EXTERN int Tcl_ForeachObjCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[])); +EXTERN int Tcl_FormatObjCmd _ANSI_ARGS_((ClientData dummy, + Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[])); +EXTERN int Tcl_GetsObjCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[])); +EXTERN int Tcl_GlobalObjCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[])); +EXTERN int Tcl_GlobCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int argc, char **argv)); +EXTERN int Tcl_HistoryCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int argc, char **argv)); +EXTERN int Tcl_IfCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int argc, char **argv)); +EXTERN int Tcl_IncrCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int argc, char **argv)); +EXTERN int Tcl_InfoObjCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[])); +EXTERN int Tcl_InterpObjCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int argc, Tcl_Obj *CONST objv[])); +EXTERN int Tcl_JoinObjCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[])); +EXTERN int Tcl_LappendObjCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[])); +EXTERN int Tcl_LindexObjCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[])); +EXTERN int Tcl_LinsertObjCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[])); +EXTERN int Tcl_LlengthObjCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[])); +EXTERN int Tcl_ListObjCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[])); +EXTERN int Tcl_LoadCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int argc, char **argv)); +EXTERN int Tcl_LrangeObjCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[])); +EXTERN int Tcl_LreplaceObjCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[])); +EXTERN int Tcl_LsearchObjCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[])); +EXTERN int Tcl_LsortObjCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[])); +EXTERN int Tcl_NamespaceObjCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[])); +EXTERN int Tcl_OpenCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int argc, char **argv)); +EXTERN int Tcl_PackageCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int argc, char **argv)); +EXTERN int Tcl_PidObjCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[])); +EXTERN int Tcl_ProcObjCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[])); +EXTERN int Tcl_PutsObjCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[])); +EXTERN int Tcl_PwdCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int argc, char **argv)); +EXTERN int Tcl_ReadObjCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[])); +EXTERN int Tcl_RegexpCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int argc, char **argv)); +EXTERN int Tcl_RegsubCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int argc, char **argv)); +EXTERN int Tcl_RenameObjCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[])); +EXTERN int Tcl_ReturnObjCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[])); +EXTERN int Tcl_ScanCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int argc, char **argv)); +EXTERN int Tcl_SeekCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int argc, char **argv)); +EXTERN int Tcl_SetCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int argc, char **argv)); +EXTERN int Tcl_SplitObjCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[])); +EXTERN int Tcl_SocketCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int argc, char **argv)); +EXTERN int Tcl_SourceObjCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[])); +EXTERN int Tcl_StringObjCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[])); +EXTERN int Tcl_SubstCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int argc, char **argv)); +EXTERN int Tcl_SwitchObjCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[])); +EXTERN int Tcl_TellCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int argc, char **argv)); +EXTERN int Tcl_TimeObjCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[])); +EXTERN int Tcl_TraceCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int argc, char **argv)); +EXTERN int Tcl_UnsetObjCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[])); +EXTERN int Tcl_UpdateCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int argc, char **argv)); +EXTERN int Tcl_UplevelObjCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[])); +EXTERN int Tcl_UpvarObjCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[])); +EXTERN int Tcl_VariableObjCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[])); +EXTERN int Tcl_VwaitCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int argc, char **argv)); +EXTERN int Tcl_WhileCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int argc, char **argv)); + +/* + *---------------------------------------------------------------- + * Command procedures found only in the Mac version of the core: + *---------------------------------------------------------------- + */ + +#ifdef MAC_TCL +EXTERN int Tcl_EchoCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int argc, char **argv)); +EXTERN int Tcl_LsCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int argc, char **argv)); +EXTERN int Tcl_BeepObjCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[])); +EXTERN int Tcl_MacSourceObjCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[])); +EXTERN int Tcl_ResourceObjCmd _ANSI_ARGS_((ClientData clientData, + Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[])); +#endif + +/* + *---------------------------------------------------------------- + * Compilation procedures for commands in the generic core: + *---------------------------------------------------------------- + */ + +EXTERN int TclCompileBreakCmd _ANSI_ARGS_((Tcl_Interp *interp, + char *string, char *lastChar, int compileFlags, + struct CompileEnv *compileEnvPtr)); +EXTERN int TclCompileCatchCmd _ANSI_ARGS_((Tcl_Interp *interp, + char *string, char *lastChar, int compileFlags, + struct CompileEnv *compileEnvPtr)); +EXTERN int TclCompileContinueCmd _ANSI_ARGS_((Tcl_Interp *interp, + char *string, char *lastChar, int compileFlags, + struct CompileEnv *compileEnvPtr)); +EXTERN int TclCompileExprCmd _ANSI_ARGS_((Tcl_Interp *interp, + char *string, char *lastChar, int compileFlags, + struct CompileEnv *compileEnvPtr)); +EXTERN int TclCompileForCmd _ANSI_ARGS_((Tcl_Interp *interp, + char *string, char *lastChar, int compileFlags, + struct CompileEnv *compileEnvPtr)); +EXTERN int TclCompileForeachCmd _ANSI_ARGS_((Tcl_Interp *interp, + char *string, char *lastChar, int compileFlags, + struct CompileEnv *compileEnvPtr)); +EXTERN int TclCompileIfCmd _ANSI_ARGS_((Tcl_Interp *interp, + char *string, char *lastChar, int compileFlags, + struct CompileEnv *compileEnvPtr)); +EXTERN int TclCompileIncrCmd _ANSI_ARGS_((Tcl_Interp *interp, + char *string, char *lastChar, int compileFlags, + struct CompileEnv *compileEnvPtr)); +EXTERN int TclCompileSetCmd _ANSI_ARGS_((Tcl_Interp *interp, + char *string, char *lastChar, int compileFlags, + struct CompileEnv *compileEnvPtr)); +EXTERN int TclCompileWhileCmd _ANSI_ARGS_((Tcl_Interp *interp, + char *string, char *lastChar, int compileFlags, + struct CompileEnv *compileEnvPtr)); + +/* + *---------------------------------------------------------------- + * Macros used by the Tcl core to create and release Tcl objects. + * TclNewObj(objPtr) creates a new object denoting an empty string. + * TclDecrRefCount(objPtr) decrements the object's reference count, + * and frees the object if its reference count is zero. + * These macros are inline versions of Tcl_NewObj() and + * Tcl_DecrRefCount(). Notice that the names differ in not having + * a "_" after the "Tcl". Notice also that these macros reference + * their argument more than once, so you should avoid calling them + * with an expression that is expensive to compute or has + * side effects. The ANSI C "prototypes" for these macros are: + * + * EXTERN void TclNewObj _ANSI_ARGS_((Tcl_Obj *objPtr)); + * EXTERN void TclDecrRefCount _ANSI_ARGS_((Tcl_Obj *objPtr)); + *---------------------------------------------------------------- + */ + +#ifdef TCL_COMPILE_STATS +# define TclIncrObjsAllocated() \ + tclObjsAlloced++ +# define TclIncrObjsFreed() \ + tclObjsFreed++ +#else +# define TclIncrObjsAllocated() +# define TclIncrObjsFreed() +#endif /* TCL_COMPILE_STATS */ + +#ifdef TCL_MEM_DEBUG +# define TclNewObj(objPtr) \ + (objPtr) = (Tcl_Obj *) Tcl_DbCkalloc(sizeof(Tcl_Obj), __FILE__, __LINE__); \ + (objPtr)->refCount = 0; \ + (objPtr)->bytes = tclEmptyStringRep; \ + (objPtr)->length = 0; \ + (objPtr)->typePtr = NULL; \ + TclIncrObjsAllocated() +# define TclDbNewObj(objPtr, file, line) \ + (objPtr) = (Tcl_Obj *) Tcl_DbCkalloc(sizeof(Tcl_Obj), (file), (line)); \ + (objPtr)->refCount = 0; \ + (objPtr)->bytes = tclEmptyStringRep; \ + (objPtr)->length = 0; \ + (objPtr)->typePtr = NULL; \ + TclIncrObjsAllocated() +# define TclDecrRefCount(objPtr) \ + if (--(objPtr)->refCount <= 0) { \ + if ((objPtr)->refCount < -1) \ + panic("Reference count for %lx was negative: %s line %d", \ + (objPtr), __FILE__, __LINE__); \ + if (((objPtr)->bytes != NULL) \ + && ((objPtr)->bytes != tclEmptyStringRep)) { \ + ckfree((char *) (objPtr)->bytes); \ + } \ + if (((objPtr)->typePtr != NULL) \ + && ((objPtr)->typePtr->freeIntRepProc != NULL)) { \ + (objPtr)->typePtr->freeIntRepProc(objPtr); \ + } \ + ckfree((char *) (objPtr)); \ + TclIncrObjsFreed(); \ + } +#else /* not TCL_MEM_DEBUG */ +# define TclNewObj(objPtr) \ + if (tclFreeObjList == NULL) { \ + TclAllocateFreeObjects(); \ + } \ + (objPtr) = tclFreeObjList; \ + tclFreeObjList = (Tcl_Obj *) \ + tclFreeObjList->internalRep.otherValuePtr; \ + (objPtr)->refCount = 0; \ + (objPtr)->bytes = tclEmptyStringRep; \ + (objPtr)->length = 0; \ + (objPtr)->typePtr = NULL; \ + TclIncrObjsAllocated() +# define TclDecrRefCount(objPtr) \ + if (--(objPtr)->refCount <= 0) { \ + if (((objPtr)->bytes != NULL) \ + && ((objPtr)->bytes != tclEmptyStringRep)) { \ + ckfree((char *) (objPtr)->bytes); \ + } \ + if (((objPtr)->typePtr != NULL) \ + && ((objPtr)->typePtr->freeIntRepProc != NULL)) { \ + (objPtr)->typePtr->freeIntRepProc(objPtr); \ + } \ + (objPtr)->internalRep.otherValuePtr = (VOID *) tclFreeObjList; \ + tclFreeObjList = (objPtr); \ + TclIncrObjsFreed(); \ + } +#endif /* TCL_MEM_DEBUG */ + +/* + *---------------------------------------------------------------- + * Macro used by the Tcl core to set a Tcl_Obj's string representation + * to a copy of the "len" bytes starting at "bytePtr". This code + * works even if the byte array contains NULLs as long as the length + * is correct. Because "len" is referenced multiple times, it should + * be as simple an expression as possible. The ANSI C "prototype" for + * this macro is: + * + * EXTERN void TclInitStringRep _ANSI_ARGS_((Tcl_Obj *objPtr, + * char *bytePtr, int len)); + *---------------------------------------------------------------- + */ + +#define TclInitStringRep(objPtr, bytePtr, len) \ + if ((len) == 0) { \ + (objPtr)->bytes = tclEmptyStringRep; \ + (objPtr)->length = 0; \ + } else { \ + (objPtr)->bytes = (char *) ckalloc((unsigned) ((len) + 1)); \ + memcpy((VOID *) (objPtr)->bytes, (VOID *) (bytePtr), \ + (unsigned) (len)); \ + (objPtr)->bytes[len] = '\0'; \ + (objPtr)->length = (len); \ + } + +/* + *---------------------------------------------------------------- + * Macro used by the Tcl core to get the string representation's + * byte array pointer and length from a Tcl_Obj. This is an inline + * version of Tcl_GetStringFromObj(). "lengthPtr" must be the + * address of an integer variable or NULL; If non-NULL, that variable + * will be set to the string rep's length. The macro's expression + * result is the string rep's byte pointer which might be NULL. + * Note that the bytes referenced by this pointer must not be modified + * by the caller. The ANSI C "prototype" for this macro is: + * + * EXTERN char * TclGetStringFromObj _ANSI_ARGS_((Tcl_Obj *objPtr, + * int *lengthPtr)); + *---------------------------------------------------------------- + */ + +#define TclGetStringFromObj(objPtr, lengthPtr) \ + ((objPtr)->bytes? \ + ((lengthPtr)? \ + ((*(lengthPtr) = (objPtr)->length), (objPtr)->bytes) : \ + (objPtr)->bytes) : \ + Tcl_GetStringFromObj((objPtr), (lengthPtr))) + +/* + *---------------------------------------------------------------- + * Macro used by the Tcl core to reset an interpreter's Tcl object + * result to an unshared empty string object with ref count one. + * This does not clear any error information for the interpreter. + * The ANSI C "prototype" for this macro is: + * + * EXTERN void TclResetObjResult _ANSI_ARGS_((Tcl_Interp *interp)); + *--------------------------------------------------------------- + */ + +#define TclResetObjResult(interp) \ + { \ + register Tcl_Obj *objResultPtr = ((Interp *) interp)->objResultPtr; \ + if (Tcl_IsShared(objResultPtr)) { \ + TclDecrRefCount(objResultPtr); \ + TclNewObj(objResultPtr); \ + Tcl_IncrRefCount(objResultPtr); \ + ((Interp *) interp)->objResultPtr = objResultPtr; \ + } else { \ + if ((objResultPtr->bytes != NULL) \ + && (objResultPtr->bytes != tclEmptyStringRep)) { \ + ckfree((char *) objResultPtr->bytes); \ + } \ + objResultPtr->bytes = tclEmptyStringRep; \ + objResultPtr->length = 0; \ + if ((objResultPtr->typePtr != NULL) \ + && (objResultPtr->typePtr->freeIntRepProc != NULL)) { \ + objResultPtr->typePtr->freeIntRepProc(objResultPtr); \ + } \ + objResultPtr->typePtr = (Tcl_ObjType *) NULL; \ + } \ + } + +/* + *---------------------------------------------------------------- + * Procedures used in conjunction with Tcl namespaces. They are + * defined here instead of in tcl.h since they are not stable yet. + *---------------------------------------------------------------- + */ + +EXTERN int Tcl_AppendExportList _ANSI_ARGS_(( + Tcl_Interp *interp, Tcl_Namespace *nsPtr, + Tcl_Obj *objPtr)); +EXTERN Tcl_Namespace * Tcl_CreateNamespace _ANSI_ARGS_((Tcl_Interp *interp, + char *name, ClientData clientData, + Tcl_NamespaceDeleteProc *deleteProc)); +EXTERN void Tcl_DeleteNamespace _ANSI_ARGS_(( + Tcl_Namespace *nsPtr)); +EXTERN int Tcl_Export _ANSI_ARGS_((Tcl_Interp *interp, + Tcl_Namespace *nsPtr, char *pattern, + int resetListFirst)); +EXTERN Tcl_Command Tcl_FindCommand _ANSI_ARGS_((Tcl_Interp *interp, + char *name, Tcl_Namespace *contextNsPtr, + int flags)); +EXTERN Tcl_Namespace * Tcl_FindNamespace _ANSI_ARGS_((Tcl_Interp *interp, + char *name, Tcl_Namespace *contextNsPtr, + int flags)); +EXTERN Tcl_Var Tcl_FindNamespaceVar _ANSI_ARGS_(( + Tcl_Interp *interp, char *name, + Tcl_Namespace *contextNsPtr, int flags)); +EXTERN int Tcl_ForgetImport _ANSI_ARGS_((Tcl_Interp *interp, + Tcl_Namespace *nsPtr, char *pattern)); +EXTERN Tcl_Command Tcl_GetCommandFromObj _ANSI_ARGS_(( + Tcl_Interp *interp, Tcl_Obj *objPtr)); +EXTERN void Tcl_GetCommandFullName _ANSI_ARGS_(( + Tcl_Interp *interp, Tcl_Command command, + Tcl_Obj *objPtr)); +EXTERN Tcl_Namespace * Tcl_GetCurrentNamespace _ANSI_ARGS_(( + Tcl_Interp *interp)); +EXTERN Tcl_Namespace * Tcl_GetGlobalNamespace _ANSI_ARGS_(( + Tcl_Interp *interp)); +EXTERN void Tcl_GetVariableFullName _ANSI_ARGS_(( + Tcl_Interp *interp, Tcl_Var variable, + Tcl_Obj *objPtr)); +EXTERN int Tcl_Import _ANSI_ARGS_((Tcl_Interp *interp, + Tcl_Namespace *nsPtr, char *pattern, + int allowOverwrite)); +EXTERN void Tcl_PopCallFrame _ANSI_ARGS_((Tcl_Interp* interp)); +EXTERN int Tcl_PushCallFrame _ANSI_ARGS_((Tcl_Interp* interp, + Tcl_CallFrame *framePtr, Tcl_Namespace *nsPtr, + int isProcCallFrame)); + +#endif /* _TCLINT */ + |