diff options
Diffstat (limited to 'generic/tclZlib.c')
| -rw-r--r-- | generic/tclZlib.c | 127 |
1 files changed, 117 insertions, 10 deletions
diff --git a/generic/tclZlib.c b/generic/tclZlib.c index 75aea90..6f40744 100644 --- a/generic/tclZlib.c +++ b/generic/tclZlib.c @@ -13,7 +13,7 @@ * See the file "license.terms" for information on usage and redistribution of * this file, and for a DISCLAIMER OF ALL WARRANTIES. * - * RCS: @(#) $Id: tclZlib.c,v 1.8 2008/12/12 21:43:35 nijtmans Exp $ + * RCS: @(#) $Id: tclZlib.c,v 1.9 2008/12/13 09:19:06 dkf Exp $ */ #include "tclInt.h" @@ -1401,14 +1401,15 @@ ZlibCmd( Byte *data; Tcl_Obj *obj = Tcl_GetObjResult(interp); Tcl_Obj *headerDictObj, *headerVarObj; + const char *extraInfoStr = NULL; static const char *const commands[] = { "adler32", "compress", "crc32", "decompress", "deflate", "gunzip", - "gzip", "inflate", "stack", "stream", "unstack", + "gzip", "inflate", "push", "stream", NULL }; enum zlibCommands { z_adler32, z_compress, z_crc32, z_decompress, z_deflate, z_gunzip, - z_gzip, z_inflate, z_stack, z_stream, z_unstack + z_gzip, z_inflate, z_push, z_stream, }; static const char *const stream_formats[] = { "compress", "decompress", "deflate", "gunzip", "gzip", "inflate", @@ -1521,6 +1522,7 @@ ZlibCmd( return TCL_ERROR; } if (level < 0 || level > 9) { + extraInfoStr = "\n (in -level option)"; goto badLevel; } break; @@ -1614,8 +1616,8 @@ ZlibCmd( Tcl_WrongNumArgs(interp, 2, objv, "mode ?level?"); return TCL_ERROR; } - if (Tcl_GetIndexFromObj(interp, objv[2], stream_formats, - "stream format", 0, &format) != TCL_OK) { + if (Tcl_GetIndexFromObj(interp, objv[2], stream_formats, "mode", 0, + &format) != TCL_OK) { return TCL_ERROR; } mode = TCL_ZLIB_STREAM_INFLATE; @@ -1639,7 +1641,6 @@ ZlibCmd( if (objc == 4) { if (Tcl_GetIntFromObj(interp, objv[3], (int *) &level) != TCL_OK) { - Tcl_AppendResult(interp, "level error: integer", NULL); return TCL_ERROR; } if (level < 0 || level > 9) { @@ -1650,21 +1651,127 @@ ZlibCmd( } if (Tcl_ZlibStreamInit(interp, mode, format, level, NULL, &zh) != TCL_OK) { - Tcl_AppendResult(interp, "stream init error: integer", NULL); return TCL_ERROR; } Tcl_SetObjResult(interp, Tcl_ZlibStreamGetCommandName(zh)); return TCL_OK; - case z_stack: /* stack */ - break; - case z_unstack: /* unstack */ + case z_push: { /* push mode channel options...*/ + Tcl_Channel chan; + int chanMode; + static const char *pushOptions[] = { + "-header", "-headerVar", "-level", "-limit", + NULL + }; + enum pushOptions {poHeader, poHeadVar, poLevel, poLimit}; + Tcl_Obj *headerObj = NULL, *varObj = NULL; + int limit = 1, dummy; + + if (objc < 4) { + Tcl_WrongNumArgs(interp, 2, objv, "mode channel ?options...?"); + return TCL_ERROR; + } + + if (Tcl_GetIndexFromObj(interp, objv[2], stream_formats, "mode", 0, + &format) != TCL_OK) { + return TCL_ERROR; + } + mode = TCL_ZLIB_STREAM_INFLATE; + switch ((enum zlibFormats) format) { + case f_deflate: + mode = TCL_ZLIB_STREAM_DEFLATE; + case f_inflate: + format = TCL_ZLIB_FORMAT_RAW; + break; + case f_compress: + mode = TCL_ZLIB_STREAM_DEFLATE; + case f_decompress: + format = TCL_ZLIB_FORMAT_ZLIB; + break; + case f_gzip: + mode = TCL_ZLIB_STREAM_DEFLATE; + case f_gunzip: + format = TCL_ZLIB_FORMAT_GZIP; + break; + } + + if (TclGetChannelFromObj(interp, objv[3], &chan, &chanMode, + 0) != TCL_OK) { + return TCL_ERROR; + } + + level = Z_DEFAULT_COMPRESSION; + for (i=4 ; i<objc ; i++) { + if (Tcl_GetIndexFromObj(interp, objv[i], pushOptions, "option", 0, + &option) != TCL_OK) { + return TCL_ERROR; + } + switch ((enum pushOptions) option) { + case poHeader: + if (++i > objc-1) { + Tcl_AppendResult(interp, + "value missing for -header option", NULL); + return TCL_ERROR; + } + headerObj = objv[i]; + if (Tcl_DictObjSize(interp, headerObj, &dummy) != TCL_OK) { + Tcl_AddErrorInfo(interp, "\n (in -header option)"); + return TCL_ERROR; + } + break; + case poHeadVar: + if (++i > objc-1) { + Tcl_AppendResult(interp, + "value missing for -headerVar option", NULL); + return TCL_ERROR; + } + varObj = objv[i]; + break; + case poLevel: + if (++i > objc-1) { + Tcl_AppendResult(interp, + "value missing for -level option", NULL); + return TCL_ERROR; + } + if (Tcl_GetIntFromObj(interp, objv[i], + (int *) &level) != TCL_OK) { + Tcl_AddErrorInfo(interp, "\n (in -level option)"); + return TCL_ERROR; + } + if (level < 0 || level > 9) { + extraInfoStr = "\n (in -level option)"; + goto badLevel; + } + break; + case poLimit: + if (++i > objc-1) { + Tcl_AppendResult(interp, + "value missing for -limit option", NULL); + return TCL_ERROR; + } + if (Tcl_GetIntFromObj(interp, objv[i], + (int *) &limit) != TCL_OK) { + Tcl_AddErrorInfo(interp, "\n (in -limit option)"); + return TCL_ERROR; + } + if (limit < 1) { + limit = 1; + } + break; + } + } + + Tcl_AppendResult(interp, "not yet implemented", NULL); break; + } }; return TCL_ERROR; badLevel: Tcl_AppendResult(interp, "level must be 0 to 9", NULL); + if (extraInfoStr) { + Tcl_AddErrorInfo(interp, extraInfoStr); + } return TCL_ERROR; badBuffer: Tcl_AppendResult(interp, "buffer size must be 32 to 65536", NULL); |