diff options
Diffstat (limited to 'generic/tclCmdAH.c')
| -rw-r--r-- | generic/tclCmdAH.c | 121 |
1 files changed, 119 insertions, 2 deletions
diff --git a/generic/tclCmdAH.c b/generic/tclCmdAH.c index f17b8fc..54a3046 100644 --- a/generic/tclCmdAH.c +++ b/generic/tclCmdAH.c @@ -11,7 +11,7 @@ * See the file "license.terms" for information on usage and redistribution * of this file, and for a DISCLAIMER OF ALL WARRANTIES. * - * RCS: @(#) $Id: tclCmdAH.c,v 1.1.2.3 1998/09/28 20:24:18 stanton Exp $ + * RCS: @(#) $Id: tclCmdAH.c,v 1.1.2.4 1998/10/21 20:40:03 stanton Exp $ */ #include "tclInt.h" @@ -343,7 +343,7 @@ Tcl_CdObjCmd(dummy, interp, objc, objv) * Tcl_ConcatObjCmd -- * * This object-based procedure is invoked to process the "concat" Tcl - * command. See the user documentation for details on what it does/ + * command. See the user documentation for details on what it does. * * Results: * A standard Tcl object result. @@ -407,6 +407,123 @@ Tcl_ContinueObjCmd(dummy, interp, objc, objv) /* *---------------------------------------------------------------------- * + * Tcl_EncodingObjCmd -- + * + * This command manipulates encodings. + * + * Results: + * A standard Tcl result. + * + * Side effects: + * See the user documentation. + * + *---------------------------------------------------------------------- + */ + +int +Tcl_EncodingObjCmd(dummy, interp, objc, objv) + ClientData dummy; /* Not used. */ + Tcl_Interp *interp; /* Current interpreter. */ + int objc; /* Number of arguments. */ + Tcl_Obj *CONST objv[]; /* Argument objects. */ +{ + int index, length; + Tcl_Encoding encoding; + char *string; + Tcl_DString ds; + Tcl_Obj *resultPtr; + + static char *optionStrings[] = { + "convertfrom", "convertto", "names", "system", + NULL + }; + enum options { + ENC_CONVERTFROM, ENC_CONVERTTO, ENC_NAMES, ENC_SYSTEM + }; + + if (objc < 2) { + Tcl_WrongNumArgs(interp, 1, objv, "option ?arg ...?"); + return TCL_ERROR; + } + if (Tcl_GetIndexFromObj(interp, objv[1], optionStrings, "option", 0, + &index) != TCL_OK) { + return TCL_ERROR; + } + + switch ((enum options) index) { + case ENC_CONVERTTO: + case ENC_CONVERTFROM: { + char *name; + Tcl_Obj *data; + if (objc == 3) { + name = NULL; + data = objv[2]; + } else if (objc == 4) { + name = Tcl_GetString(objv[2]); + data = objv[3]; + } else { + Tcl_WrongNumArgs(interp, 2, objv, "?encoding? data"); + return TCL_ERROR; + } + + encoding = Tcl_GetEncoding(interp, name); + if (!encoding) { + return TCL_ERROR; + } + + if ((enum options) index == ENC_CONVERTFROM) { + /* + * Treat the string as binary data. + */ + + string = (char *) Tcl_GetByteArrayFromObj(data, &length); + Tcl_ExternalToUtfDString(encoding, string, length, &ds); + Tcl_DStringResult(interp, &ds); + } else { + /* + * Store the result as binary data. + */ + + string = Tcl_GetStringFromObj(data, &length); + Tcl_UtfToExternalDString(encoding, string, length, &ds); + resultPtr = Tcl_GetObjResult(interp); + Tcl_SetByteArrayObj(resultPtr, + (unsigned char *) Tcl_DStringValue(&ds), + Tcl_DStringLength(&ds)); + Tcl_DStringFree(&ds); + } + + Tcl_FreeEncoding(encoding); + break; + } + case ENC_NAMES: { + if (objc > 2) { + Tcl_WrongNumArgs(interp, 2, objv, NULL); + return TCL_ERROR; + } + Tcl_GetEncodingNames(interp); + break; + } + case ENC_SYSTEM: { + if (objc > 3) { + Tcl_WrongNumArgs(interp, 2, objv, "?encoding?"); + return TCL_ERROR; + } + if (objc == 2) { + Tcl_SetResult(interp, Tcl_GetEncodingName(NULL), TCL_STATIC); + } else { + return Tcl_SetSystemEncoding(interp, + Tcl_GetStringFromObj(objv[2], NULL)); + } + break; + } + } + return TCL_OK; +} + +/* + *---------------------------------------------------------------------- + * * Tcl_ErrorObjCmd -- * * This procedure is invoked to process the "error" Tcl command. |