diff options
| -rw-r--r-- | generic/tclExecute.c | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/generic/tclExecute.c b/generic/tclExecute.c index 73f388b..d178934 100644 --- a/generic/tclExecute.c +++ b/generic/tclExecute.c @@ -5157,6 +5157,126 @@ TEBCresume( int length3; Tcl_Obj *value3Ptr; + case INST_STR_REPLACE: + valuePtr = OBJ_AT_DEPTH(3); + length = Tcl_GetCharLength(valuePtr) - 1; + value3Ptr = OBJ_AT_TOS; + TRACE(("\"%.20s\" %s %s \"%.20s\" => ", O2S(valuePtr), + O2S(OBJ_AT_DEPTH(2)), O2S(OBJ_UNDER_TOS), O2S(value3Ptr))); + if (TclGetIntForIndexM(interp, OBJ_AT_DEPTH(2), length, + &fromIdx) != TCL_OK + || TclGetIntForIndexM(interp, OBJ_UNDER_TOS, length, + &toIdx) != TCL_OK) { + goto gotError; + } + if (fromIdx < 0) { + fromIdx = 0; + } + + if (fromIdx > toIdx || fromIdx > length) { + TRACE_APPEND(("%.30s\n", O2S(valuePtr))); + NEXT_INST_F(1, 3, 0); + } + + if (fromIdx == 0 && toIdx == length) { + objResultPtr = value3Ptr; + TRACE_APPEND(("%.30s\n", O2S(objResultPtr))); + NEXT_INST_F(1, 4, 1); + } + + length3 = Tcl_GetCharLength(value3Ptr); + + /* + * Remove substring. In-place. + */ + + if (length3 == 0 && !Tcl_IsShared(valuePtr) && toIdx == length) { + Tcl_SetObjLength(valuePtr, fromIdx); + TRACE_APPEND(("%.30s\n", O2S(valuePtr))); + NEXT_INST_F(1, 3, 0); + } + + // Splice in place. + + if (length3 == toIdx - fromIdx) { + unsigned char *bytes1, *bytes2; + + if (Tcl_IsShared(valuePtr)) { + objResultPtr = Tcl_DuplicateObj(valuePtr); + // splice "in place" + if (TclIsPureByteArray(objResultPtr) + && TclIsPureByteArray(value3Ptr)) { + bytes1 = Tcl_GetByteArrayFromObj(objResultPtr); + bytes2 = Tcl_GetByteArrayFromObj(value3Ptr); + } else { + } + NEXT_INST_F(1, 4, 1); + } else { + // splice "in place" + if (TclIsPureByteArray(valuePtr) + && TclIsPureByteArray(value3Ptr)) { + bytes1 = Tcl_GetByteArrayFromObj(valuePtr); + bytes2 = Tcl_GetByteArrayFromObj(value3Ptr); + } else { + } + NEXT_INST_F(1, 3, 0); + } + } + + /* + * Get the unicode representation; this is where we guarantee to lose + * bytearrays. + */ + + ustring1 = Tcl_GetUnicodeFromObj(valuePtr, &length); + length--; + + /* + * Remove substring using copying. + */ + + if (length3 == 0) { + if (fromIdx > 0) { + objResultPtr = Tcl_NewUnicodeObj(ustring1, fromIdx); + if (toIdx < length) { + Tcl_AppendUnicodeToObj(objResultPtr, ustring1 + toIdx + 1, + length - toIdx); + } + } else { + objResultPtr = Tcl_NewUnicodeObj(ustring1 + toIdx + 1, + length - toIdx); + } + TRACE_APPEND(("%.30s\n", O2S(objResultPtr))); + NEXT_INST_F(1, 4, 1); + } + + /* + * Splice string pieces by full copying. + */ + + if (fromIdx > 0) { + objResultPtr = Tcl_NewUnicodeObj(ustring1, fromIdx); + Tcl_AppendObjToObj(objResultPtr, value3Ptr); + if (toIdx < length) { + Tcl_AppendUnicodeToObj(objResultPtr, ustring1 + toIdx + 1, + length - toIdx); + } + } else if (Tcl_IsShared(value3Ptr)) { + objResultPtr = Tcl_DuplicateObj(value3Ptr); + if (toIdx < length) { + Tcl_AppendUnicodeToObj(objResultPtr, ustring1 + toIdx + 1, + length - toIdx); + } + } else { + objResultPtr = value3Ptr; + if (toIdx < length) { + Tcl_AppendUnicodeToObj(objResultPtr, ustring1 + toIdx + 1, + length - toIdx); + } + } + TRACE_APPEND(("%.30s\n", O2S(objResultPtr))); + NEXT_INST_F(1, 4, 1); + case INST_STR_MAP: valuePtr = OBJ_AT_TOS; /* "Main" string. */ value3Ptr = OBJ_UNDER_TOS; /* "Target" string. */ |