diff options
| author | dkf <donal.k.fellows@manchester.ac.uk> | 2024-05-26 13:19:43 (GMT) |
|---|---|---|
| committer | dkf <donal.k.fellows@manchester.ac.uk> | 2024-05-26 13:19:43 (GMT) |
| commit | 85d98f92fd33696034aab9f92955dc12ea3972ee (patch) | |
| tree | 7f001c238f93c5f63e92ad456786dc0f89e6b425 /generic/tclDictObj.c | |
| parent | 845ff1ddf732887fc40128ce9ff980c5524b26d8 (diff) | |
| parent | dc83b7dd6cf2ac488c5bf8d4756cd4490da2af28 (diff) | |
| download | tcl-85d98f92fd33696034aab9f92955dc12ea3972ee.zip tcl-85d98f92fd33696034aab9f92955dc12ea3972ee.tar.gz tcl-85d98f92fd33696034aab9f92955dc12ea3972ee.tar.bz2 | |
merge 8.6
Diffstat (limited to 'generic/tclDictObj.c')
| -rw-r--r-- | generic/tclDictObj.c | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/generic/tclDictObj.c b/generic/tclDictObj.c index 2359e23..01a8aaa 100644 --- a/generic/tclDictObj.c +++ b/generic/tclDictObj.c @@ -1476,6 +1476,153 @@ Tcl_DbNewDictObj( } #endif +/***** START OF FUNCTIONS ACTING AS HELPERS *****/ + +/* + *---------------------------------------------------------------------- + * + * TclDictGet -- + * + * Given a key, get its value from the dictionary (or NULL if key is not + * found in dictionary.) + * + * Results: + * A standard Tcl result. The variable pointed to by valuePtrPtr is + * updated with the value for the key. Note that it is not an error for + * the key to have no mapping in the dictionary. + * + * Side effects: + * The object pointed to by dictPtr is converted to a dictionary if it is + * not already one. + * + *---------------------------------------------------------------------- + */ +int +TclDictGet( + Tcl_Interp *interp, + Tcl_Obj *dictPtr, + const char *key, /* The key in a C string. */ + Tcl_Obj **valuePtrPtr) /* Where to write the value. */ +{ + Tcl_Obj *keyPtr = Tcl_NewStringObj(key, -1); + int code; + + Tcl_IncrRefCount(keyPtr); + code = Tcl_DictObjGet(interp, dictPtr, keyPtr, valuePtrPtr); + Tcl_DecrRefCount(keyPtr); + return code; +} + +/* + *---------------------------------------------------------------------- + * + * TclDictPut -- + * + * Add a key,value pair to a dictionary, or update the value for a key if + * that key already has a mapping in the dictionary. + * + * If valuePtr is a zero-count object and is not written into the + * dictionary because of an error, it is freed by this routine. The caller + * does NOT need to do reference count management. + * + * Results: + * A standard Tcl result. + * + * Side effects: + * The object pointed to by dictPtr is converted to a dictionary if it is + * not already one, and any string representation that it has is + * invalidated. + * + *---------------------------------------------------------------------- + */ +int +TclDictPut( + Tcl_Interp *interp, + Tcl_Obj *dictPtr, + const char *key, /* The key in a C string. */ + Tcl_Obj *valuePtr) /* The value to write in. */ +{ + Tcl_Obj *keyPtr = Tcl_NewStringObj(key, -1); + int code; + + Tcl_IncrRefCount(keyPtr); + Tcl_IncrRefCount(valuePtr); + code = Tcl_DictObjPut(interp, dictPtr, keyPtr, valuePtr); + Tcl_DecrRefCount(keyPtr); + Tcl_DecrRefCount(valuePtr); + return code; +} + +/* + *---------------------------------------------------------------------- + * + * TclDictPutString -- + * + * Add a key,value pair to a dictionary, or update the value for a key if + * that key already has a mapping in the dictionary. + * + * Results: + * A standard Tcl result. + * + * Side effects: + * The object pointed to by dictPtr is converted to a dictionary if it is + * not already one, and any string representation that it has is + * invalidated. + * + *---------------------------------------------------------------------- + */ +int +TclDictPutString( + Tcl_Interp *interp, + Tcl_Obj *dictPtr, + const char *key, /* The key in a C string. */ + const char *value) /* The value in a C string. */ +{ + Tcl_Obj *keyPtr = Tcl_NewStringObj(key, -1); + Tcl_Obj *valuePtr = Tcl_NewStringObj(value, -1); + int code; + + Tcl_IncrRefCount(keyPtr); + Tcl_IncrRefCount(valuePtr); + code = Tcl_DictObjPut(interp, dictPtr, keyPtr, valuePtr); + Tcl_DecrRefCount(keyPtr); + Tcl_DecrRefCount(valuePtr); + return code; +} + +/* + *---------------------------------------------------------------------- + * + * TclDictRemove -- + * + * Remove the key,value pair with the given key from the dictionary; the + * key does not need to be present in the dictionary. + * + * Results: + * A standard Tcl result. + * + * Side effects: + * The object pointed to by dictPtr is converted to a dictionary if it is + * not already one, and any string representation that it has is + * invalidated. + * + *---------------------------------------------------------------------- + */ +int +TclDictRemove( + Tcl_Interp *interp, + Tcl_Obj *dictPtr, + const char *key) /* The key in a C string. */ +{ + Tcl_Obj *keyPtr = Tcl_NewStringObj(key, -1); + int code; + + Tcl_IncrRefCount(keyPtr); + code = Tcl_DictObjRemove(interp, dictPtr, keyPtr); + Tcl_DecrRefCount(keyPtr); + return code; +} + /***** START OF FUNCTIONS IMPLEMENTING TCL COMMANDS *****/ /* |
