2401 lines
105 KiB
Plaintext
2401 lines
105 KiB
Plaintext
Recent user-visible changes to Tcl:
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SCCS: @(#) changes 1.171 96/10/14 12:59:16
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1. No more [command1] [command2] construct for grouping multiple
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commands on a single command line.
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2. Semi-colon now available for grouping commands on a line.
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3. For a command to span multiple lines, must now use backslash-return
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at the end of each line but the last.
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4. "Var" command has been changed to "set".
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5. Double-quotes now available as an argument grouping character.
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6. "Return" may be used at top-level.
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7. More backslash sequences available now. In particular, backslash-newline
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may be used to join lines in command files.
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8. New or modified built-in commands: case, return, for, glob, info,
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print, return, set, source, string, uplevel.
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9. After an error, the variable "errorInfo" is filled with a stack
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trace showing what was being executed when the error occurred.
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10. Command abbreviations are accepted when parsing commands, but
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are not recommended except for purely-interactive commands.
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11. $, set, and expr all complain now if a non-existent variable is
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referenced.
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12. History facilities exist now. See Tcl.man and Tcl_RecordAndEval.man.
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13. Changed to distinguish between empty variables and those that don't
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exist at all. Interfaces to Tcl_GetVar and Tcl_ParseVar have changed
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(NULL return value is now possible). *** POTENTIAL INCOMPATIBILITY ***
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14. Changed meaning of "level" argument to "uplevel" command (1 now means
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"go up one level", not "go to level 1"; "#1" means "go to level 1").
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*** POTENTIAL INCOMPATIBILITY ***
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15. 3/19/90 Added "info exists" option to see if variable exists.
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16. 3/19/90 Added "noAbbrev" variable to prohibit command abbreviations.
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17. 3/19/90 Added extra errorInfo option to "error" command.
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18. 3/21/90 Double-quotes now only affect space: command, variable,
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and backslash substitutions still occur inside double-quotes.
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*** POTENTIAL INCOMPATIBILITY ***
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19. 3/21/90 Added support for \r.
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20. 3/21/90 List, concat, eval, and glob commands all expect at least
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one argument now. *** POTENTIAL INCOMPATIBILITY ***
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21. 3/22/90 Added "?:" operators to expressions.
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22. 3/25/90 Fixed bug in Tcl_Result that caused memory to get trashed.
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------------------- Released version 3.1 ---------------------
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23. 3/29/90 Fixed bug that caused "file a.b/c ext" to return ".b/c".
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24. 3/29/90 Semi-colon is not treated specially when enclosed in
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double-quotes.
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------------------- Released version 3.2 ---------------------
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25. 4/16/90 Rewrote "exec" not to use select or signals anymore.
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Should be more Sys-V compatible, and no slower in the normal case.
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26. 4/18/90 Rewrote "glob" to eliminate GNU code (there's no GNU code
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left in Tcl, now), and added Tcl_TildeSubst procedure. Added automatic
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tilde-substitution in many commands, including "glob".
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------------------- Released version 3.3 ---------------------
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27. 7/11/90 Added "Tcl_AppendResult" procedure.
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28. 7/20/90 "History" with no options now defaults to "history info"
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rather than to "history redo". Although this is a backward incompatibility,
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it should only be used interactively and thus shouldn't present any
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compatibility problems with scripts.
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29. 7/20/90 Added "Tcl_GetInteger", "Tcl_GetDouble", and "Tcl_GetBoolean"
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procedures.
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30. 7/22/90 Removed "Tcl_WatchInterp" procedure: doesn't seem to be
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necessary, since the same effect can be achieved with the deletion
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callbacks on individual commands. *** POTENTIAL INCOMPATIBILITY ***
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31. 7/23/90 Added variable tracing: Tcl_TraceVar, Tcl_UnTraceVar,
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and Tcl_VarTraceInfo procedures, "trace" command.
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32. 8/9/90 Mailed out list of all bug fixes since 3.3 release.
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33. 8/29/90 Fixed bugs in Tcl_Merge relating to backslashes and
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semi-colons. Mailed out patch.
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34. 9/3/90 Fixed bug in tclBasic.c: quotes weren't quoting ]'s.
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Mailed out patch.
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35. 9/19/90 Rewrote exec to always use files both for input and
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output to the process. The old pipe-based version didn't work if
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the exec'ed process forked a child and then exited: Tcl waited
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around for stdout to get closed, which didn't happen until the
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grandchild exited.
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36. 11/5/90 ERR_IN_PROGRESS flag wasn't being cleared soon enough
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in Tcl_Eval, allowing error messages from different commands to
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pile up in $errorInfo. Fixed by re-arranging code in Tcl_Eval that
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re-initializes result and ERR_IN_PROGRESS flag. Didn't mail out
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patch: changes too complicated to describe.
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37. 12/19/90 Added Tcl_VarEval procedure as a convenience for
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assembling and executing Tcl commands.
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38. 1/29/91 Fixed core leak in Tcl_AddErrorInfo. Also changed procedure
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and Tcl_Eval so that first call to Tcl_AddErrorInfo need not come from
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Tcl_Eval.
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----------------- Released version 5.0 with Tk ------------------
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39. 4/3/91 Removed change bars from manual entries, leaving only those
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that came after version 3.3 was released.
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40. 5/17/91 Changed tests to conform to Mary Ann May-Pumphrey's approach.
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41. 5/23/91 Massive revision to Tcl parser to simplify the implementation
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of string and floating-point support in expressions. Newlines inside
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[] are now treated as command separators rather than word separators
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(this makes newline treatment consistent throughout Tcl).
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*** POTENTIAL INCOMPATIBILITY ***
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42. 5/23/91 Massive rewrite of expression code to support floating-point
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values and simple string comparisons. The C interfaces to expression
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routines have changed (Tcl_Expr is replaced by Tcl_ExprLong, Tcl_ExprDouble,
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etc.), but all old Tcl expression strings should be accepted by the new
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expression code.
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*** POTENTIAL INCOMPATIBILITY ***
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43. 5/23/91 Modified tclHistory.c to check for negative "keep" value.
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44. 5/23/91 Modified Tcl_Backslash to handle backslash-newline. It now
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returns 0 to indicate that a backslash sequence should be replaced by
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no character at all.
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*** POTENTIAL INCOMPATIBILITY ***
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45. 5/29/91 Modified to use ANSI C function prototypes. Must set
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"USE_ANSI" switch when compiling to get prototypes.
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46. 5/29/91 Completed test suite by providing tests for all of the
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built-in Tcl commands.
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47. 5/29/91 Changed Tcl_Concat to eliminate leading and trailing
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white-space in each of the things it concatenates and to ignore
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elements that are empty or have only white space in them. This
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produces cleaner output from the "concat" command.
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*** POTENTIAL INCOMPATIBILITY ***
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48. 5/31/91 Changed "set" command and Tcl_SetVar procedure to return
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new value of variable.
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49. 6/1/91 Added "while" and "cd" commands.
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50. 6/1/91 Changed "exec" to delete the last character of program
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output if it is a newline. In most cases this makes it easier to
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process program-generated output.
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*** POTENTIAL INCOMPATIBILITY ***
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51. 6/1/91 Made sure that pointers are never used after freeing them.
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52. 6/1/91 Fixed bug in TclWordEnd where it wasn't dealing with
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[] inside quotes correctly.
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53. 6/8/91 Fixed exec.test to accept return values of either 1 or
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255 from "false" command.
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54. 7/6/91 Massive overhaul of variable management. Associative
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arrays now available, along with "unset" command (and Tcl_UnsetVar
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procedure). Variable traces have been completely reworked:
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interfaces different both from Tcl and C, and multiple traces may
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exist on same variable. Can no longer redefine existing local
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variable to be global. Calling sequences have changed slightly
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for Tcl_GetVar and Tcl_SetVar ("global" is now "flags"). Tcl_SetVar
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can fail and return a NULL result. New forms of variable-manipulation
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procedures: Tcl_GetVar2, Tcl_SetVar2, etc. Syntax of variable
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$-notation changed to support array indexing.
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*** POTENTIAL INCOMPATIBILITY ***
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55. 7/6/91 Added new list-manipulation procedures: Tcl_ScanElement,
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Tcl_ConvertElement, Tcl_AppendElement.
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56. 7/12/91 Created new procedure Tcl_EvalFile, which does most of the
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work of the "source" command.
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57. 7/20/91 Major reworking of "exec" command to allow pipelines,
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more redirection, background. Added new procedures Tcl_Fork,
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Tcl_WaitPids, Tcl_DetachPids, and Tcl_CreatePipeline. The old
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"< input" notation has been replaced by "<< input" ("<" is for
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redirection from a file). Also handles error returns and abnormal
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terminations (e.g. signals) differently.
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*** POTENTIAL INCOMPATIBILITY ***
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58. 7/21/91 Added "append" and "lappend" commands.
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59. 7/22/91 Reworked error messages and manual entries to use
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?x? as the notation for an optional argument x, instead of [x]. The
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bracket notation was often confused with the use of brackets for
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command substitution. Also modified error messages to be more
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consistent.
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60. 7/23/91 Tcl_DeleteCommand now returns an indication of whether
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or not the command actually existed, and the "rename" command uses
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this information to return an error if an attempt is made to delete
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a non-existent command.
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*** POTENTIAL INCOMPATIBILITY ***
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61. 7/25/91 Added new "errorCode" mechanism, along with procedures
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Tcl_SetErrorCode, Tcl_UnixError, and Tcl_ResetResult. Renamed
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Tcl_Return to Tcl_SetResult, but left a #define for Tcl_Return to
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avoid compatibility problems.
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62. 7/26/91 Extended "case" command with alternate syntax where all
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patterns and commands are together in a single list argument: makes
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it easier to write multi-line case statements.
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63. 7/27/91 Changed "print" command to perform tilde-substitution on
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the file name.
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64. 7/27/91 Added "tolower", "toupper", "trim", "trimleft", and "trimright"
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options to "string" command.
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65. 7/29/91 Added "atime", "mtime", "size", and "stat" options to "file"
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command.
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66. 8/1/91 Added "split" and "join" commands.
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67. 8/11/91 Added commands for file I/O, including "open", "close",
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"read", "gets", "puts", "flush", "eof", "seek", and "tell".
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68. 8/14/91 Switched to use a hash table for command lookups. Command
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abbreviations no longer have direct support in the Tcl interpreter, but
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it should be possible to simulate them with the auto-load features
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described below. The "noAbbrev" variable is no longer used by Tcl.
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*** POTENTIAL INCOMPATIBILITY ***
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68.5 8/15/91 Added support for "unknown" command, which can be used to
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complete abbreviations, auto-load library files, auto-exec shell
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commands, etc.
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69. 8/15/91 Added -nocomplain switch to "glob" command.
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70. 8/20/91 Added "info library" option and TCL_LIBRARY #define. Also
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added "info script" option.
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71. 8/20/91 Changed "file" command to take "option" argument as first
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argument (before file name), for consistency with other Tcl commands.
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*** POTENTIAL INCOMPATIBILITY ***
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72. 8/20/91 Changed format of information in $errorInfo variable:
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comments such as
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("while" body line 1)
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are now on separate lines from commands being executed.
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*** POTENTIAL INCOMPATIBILITY ***
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73. 8/20/91 Changed Tcl_AppendResult so that it (eventually) frees
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large buffers that it allocates.
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74. 8/21/91 Added "linsert", "lreplace", "lsearch", and "lsort"
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commands.
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75. 8/28/91 Added "incr" and "exit" commands.
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76. 8/30/91 Added "regexp" and "regsub" commands.
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77. 9/4/91 Changed "dynamic" field in interpreters to "freeProc" (procedure
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address). This allows for alternative storage managers.
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*** POTENTIAL INCOMPATIBILITY ***
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78. 9/6/91 Added "index", "length", and "range" options to "string"
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command. Added "lindex", "llength", and "lrange" commands.
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79. 9/8/91 Removed "index", "length", "print" and "range" commands.
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"Print" is redundant with "puts", but less general, and the other
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commands are replaced with the new commands described in change 78
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above.
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*** POTENTIAL INCOMPATIBILITY ***
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80. 9/8/91 Changed history revision to occur even when history command
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is nested; needed in order to allow "history" to be invoked from
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"unknown" procedure.
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81. 9/13/91 Changed "panic" not to use vfprintf (it's uglier and less
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general now, but makes it easier to run Tcl on systems that don't
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have vfprintf). Also changed "strerror" not to redeclare sys_errlist.
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82. 9/19/91 Lots of changes to improve portability to different UNIX
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systems, including addition of "config" script to adapt Tcl to the
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configuration of the system it's being compiled on.
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83. 9/22/91 Added "pwd" command.
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84. 9/22/91 Renamed manual pages so that their filenames are no more
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than 14 characters in length, moved to "doc" subdirectory.
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85. 9/24/91 Redid manual entries so they contain the supplemental
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macros that they need; can just print with "troff -man" or "man"
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now.
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86. 9/26/91 Created initial version of script library, including
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a version of "unknown" that does auto-loading, auto-execution, and
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abbreviation expansion. This library is used by tclTest
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automatically. See the "library" manual entry for details.
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----------------- Released version 6.0, 9/26/91 ------------------
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87. 9/30/91 Made "string tolower" and "string toupper" check case
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before converting: on some systems, "tolower" and "toupper" assume
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that character already has particular case.
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88. 9/30/91 Fixed bug in Tcl_SetResult: wasn't always setting freeProc
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correctly when called with NULL value. This tended to cause memory
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allocation errors later.
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89. 10/3/91 Added "upvar" command.
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90. 10/4/91 Changed "format" so that internally it converts %D to %ld,
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%U to %lu, %O to %lo, and %F to %f. This eliminates some compatibility
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problems on some machines without affecting behavior.
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91. 10/10/91 Fixed bug in "regsub" that caused core dumps with the -all
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option when the last match wasn't at the end of the string.
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92. 10/17/91 Fixed problems with backslash sequences: \r support was
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incomplete and \f and \v weren't supported at all.
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93. 10/24/91 Added Tcl_InitHistory procedure.
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94. 10/24/91 Changed "regexp" to store "-1 -1" in subMatchVars that
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don't match, rather than returning an error.
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95. 10/27/91 Modified "regexp" to return actual strings in matchVar
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and subMatchVars instead of indices. Added "-indices" switch to cause
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indices to be returned.
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*** POTENTIAL INCOMPATIBILITY ***
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96. 10/27/91 Fixed bug in "scan" where it used hardwired constants for
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sizes of floats and doubles instead of using "sizeof".
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97. 10/31/91 Fixed bug in tclParse.c where parse-related error messages
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weren't being storage-managed correctly, causing spurious free's.
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98. 10/31/91 Form feed and vertical tab characters are now considered
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to be space characters by the parser.
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99. 10/31/91 Added TCL_LEAVE_ERR_MSG flag to procedures like Tcl_SetVar.
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100. 11/7/91 Fixed bug in "case" where "in" argument couldn't be omitted
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if all case branches were embedded in a single list.
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101. 11/7/91 Switched to use "pid_t" and "uid_t" and other official
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POSIC types and function prototypes.
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----------------- Released version 6.1, 11/7/91 ------------------
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102. 12/2/91 Modified Tcl_ScanElement and Tcl_ConvertElement in several
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ways. First, allowed caller to request that only backslashes be used
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(no braces). Second, made Tcl_ConvertElement more aggressive in using
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backslashes for braces and quotes.
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103. 12/5/91 Added "type", "lstat", and "readlink" options to "file"
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command, plus added new "type" element to output of "stat" and "lstat"
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options.
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104. 12/10/91 Manual entries had first lines that caused "man" program
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to try weird preprocessor. Added blank comment lines to fix problem.
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105. 12/16/91 Fixed a few bugs in auto_mkindex proc: wasn't handling
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errors properly, and hadn't been upgraded for new "regexp" syntax.
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106. 1/2/92 Fixed bug in "file" command where it didn't properly handle
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a file names containing tildes where the indicated user doesn't exist.
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107. 1/2/92 Fixed lots of cases in tclUnixStr.c where two different
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errno symbols (e.g. EWOULDBLOCK and EAGAIN) have the same number; Tcl
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will only use one of them.
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108. 1/2/92 Lots of changes to configuration script to handle many more
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systems more gracefully. E.g. should now detect the bogus strtoul that
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comes with AIX and substitute Tcl's own version instead.
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----------------- Released version 6.2, 1/10/92 ------------------
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109. 1/20/92 Config didn't have code to actually use "uid_t" variable
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to set TCL_UIT_T #define.
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110. 2/10/92 Tcl_Eval didn't properly reset "numLevels" variable when
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too-deep recursion occurred.
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111. 2/29/92 Added "on" and "off" to keywords accepted by Tcl_GetBoolean.
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112. 3/19/92 Config wasn't installing default version of strtod.c for
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systems that don't have one in libc.a.
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113. 3/23/92 Fixed bug in tclExpr.c where numbers with leading "."s,
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like 0.75, couldn't be properly substituted into expressions with
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variable or command substitution.
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114. 3/25/92 Fixed bug in tclUnixAZ.c where "gets" command wasn't
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checking to make sure that it was able to write the variable OK.
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115. 4/16/92 Fixed bug in tclUnixAZ.c where "read" command didn't
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compute file size right for device files.
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116. 4/23/92 Fixed but in tclCmdMZ.c where "trace vinfo" was overwriting
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the trace command.
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----------------- Released version 6.3, 5/1/92 ------------------
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117. 5/1/92 Added Tcl_GlobalEval.
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118. 6/1/92 Changed auto-load facility to source files at global level.
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119. 6/8/92 Tcl_ParseVar wasn't always setting termPtr after errors, which
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sometimes caused core dumps.
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120. 6/21/92 Fixed bug in initialization of regexp pattern cache. This
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bug caused segmentation violations in regexp commands under some conditions.
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121. 6/22/92 Changed implementation of "glob" command to eliminate
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trailing slashes on directory names: they confuse some systems. There
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shouldn't be any user-visible changes in functionality except for names
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in error messages not having trailing slashes.
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122. 7/2/92 Fixed bug that caused 'string match ** ""' to return 0.
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123. 7/2/92 Fixed bug in Tcl_CreateCmdBuf where it wasn't initializing
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the buffer to an empty string.
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124. 7/6/92 Fixed bug in "case" command where it used NULL pattern string
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after errors in the "default" clause.
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125. 7/25/92 Speeded up auto_load procedure: don't reread all the index
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files unless the path has changed.
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126. 8/3/92 Changed tclUnix.h to define MAXPATHLEN from PATH_MAX, not
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_POSIX_PATH_MAX.
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----------------- Released version 6.4, 8/7/92 ------------------
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127. 8/10/92 Changed tclBasic.c so that comment lines can be continued by
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putting a backslash before the newline.
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128. 8/21/92 Modified "unknown" to allow the source-ing of a file for
|
|
an auto-load to trigger other nested auto-loads, as long as there isn't
|
|
any recursion on the same command name.
|
|
|
|
129. 8/25/92 Modified "format" command to allow " " and "+" flags, and
|
|
allow flags in any order.
|
|
|
|
130. 9/14/92 Modified Tcl_ParseVar so that it doesn't actually attempt
|
|
to look up the variable if "noEval" mode is in effect in the interpreter
|
|
(it just parses the name). This avoids the errors that used to occur
|
|
in statements like "expr {[info exists foo] && $foo}".
|
|
|
|
131. 9/14/92 Fixed bug in "uplevel" command where it didn't output the
|
|
correct error message if a level was specified but no command.
|
|
|
|
132. 9/14/92 Renamed manual entries to have extensions like .3 and .n,
|
|
and added "install" target to Makefile.
|
|
|
|
133. 9/18/92 Modified "unknown" command to emulate !!, !<num>, and
|
|
^<old>^<new> csh history substitutions.
|
|
|
|
134. 9/21/92 Made the config script cleverer about figuring out which
|
|
switches to pass to "nm".
|
|
|
|
135. 9/23/92 Fixed tclVar.c to be sure to copy flags when growing variables.
|
|
Used to forget about traces in progress and make extra recursive calls
|
|
on trace procs.
|
|
|
|
136. 9/28/92 Fixed bug in auto_reset where it was unsetting variables
|
|
that might not exist.
|
|
|
|
137. 10/7/92 Changed "parray" library procedure to print any array
|
|
accessible to caller, local or global.
|
|
|
|
138. 10/15/92 Fixed bug where propagation of new environment variable
|
|
values among interpreters took N! time if there exist N interpreters.
|
|
|
|
139. 10/16/92 Changed auto_reset procedure so that it also deletes any
|
|
existing procedures that are in the auto_load index (the assumption is
|
|
that they should be re-loaded to get the latest versions).
|
|
|
|
140. 10/21/92 Fixed bug that caused lists to be incorrectly generated
|
|
for elements that contained backslash-newline sequences.
|
|
|
|
141. 12/9/92 Added support for TCL_LIBRARY environment variable: use
|
|
it as library location if it's present.
|
|
|
|
142. 12/9/92 Added "info complete" command, Tcl_CommandComplete procedure.
|
|
|
|
143. 12/16/92 Changed the Makefile to check to make sure "config" has been
|
|
run (can't run config directly from the Makefile because it modifies the
|
|
Makefile; thus make has to be run again after running config).
|
|
|
|
----------------- Released version 6.5, 12/17/92 ------------------
|
|
|
|
144. 12/21/92 Changed config to look in several places for libc file.
|
|
|
|
145. 12/23/92 Added "elseif" support to if. Also, "then", "else", and
|
|
"elseif" may no longer be abbreviated.
|
|
*** POTENTIAL INCOMPATIBILITY ***
|
|
|
|
146. 12/28/92 Changed "puts" and "read" to support initial "-nonewline"
|
|
switch instead of additional "nonewline" argument. The old form is
|
|
still supported, but it is discouraged and is no longer documented.
|
|
Also changed "puts" to make the file argument default to stdout: e.g.
|
|
"puts foo" will print foo on standard output.
|
|
|
|
147. 1/6/93 Fixed bug whereby backslash-newline wasn't working when
|
|
typed interactively, or in "info complete".
|
|
|
|
148. 1/22/93 Fixed bugs in "lreplace" and "linsert" where close
|
|
quotes were being lost from last element before replacement or
|
|
insertion.
|
|
|
|
149. 1/29/93 Fixed bug in Tcl_AssembleCmd where it wasn't requiring
|
|
a newline at the end of a line before considering a command to be
|
|
complete. The bug caused some very long lines in script files to
|
|
be processed as multiple separate commands.
|
|
|
|
150. 1/29/93 Various changes in Makefile to add more configuration
|
|
options, simplify installation, fix bugs (e.g. don't use -f switch
|
|
for cp), etc.
|
|
|
|
151. 1/29/93 Changed "name1" and "name2" identifiers to "part1" and
|
|
"part2" to avoid name conflicts with stupid C++ implementations that
|
|
use "name1" and "name2" in a reserved way.
|
|
|
|
152. 2/1/93 Added "putenv" procedure to replace the standard system
|
|
version so that it will work correctly with Tcl's environment handling.
|
|
|
|
----------------- Released version 6.6, 2/5/93 ------------------
|
|
|
|
153. 2/10/93 Fixed bugs in config script: missing "endif" in libc loop,
|
|
and tried to use strncasecmp.c instead of strcasecmp.c.
|
|
|
|
154. 2/10/93 Makefile improvements: added RANLIB variable for easier
|
|
Sys-V configuration, added SHELL variable for SGI systems.
|
|
|
|
----------------- Released version 6.7, 2/11/93 ------------------
|
|
|
|
153. 2/6/93 Changes in backslash processing:
|
|
- \Cx, \Mx, \CMx, \e sequences no longer special
|
|
- \<newline> also eats up any space after the newline, replacing
|
|
the whole sequence with a single space character
|
|
- Hex sequences like \x24 are now supported, along with ANSI C's \a.
|
|
- "format" no longer does backslash processing on its format string
|
|
- there is no longer any special meaning to a 0 return value from
|
|
Tcl_Backslash
|
|
- unknown backslash sequences, like (e.g. \*), are replaced with
|
|
the following character (e.g. *), instead of just treating the
|
|
backslash as an ordinary character.
|
|
*** POTENTIAL INCOMPATIBILITY ***
|
|
|
|
154. 2/6/93 Updated all copyright notices. The meaning hasn't changed
|
|
at all but the wording does a better job of protecting U.C. from
|
|
liability (according to U.C. lawyers, anyway).
|
|
|
|
155. 2/6/93 Changed "regsub" so that it overwrites the result variable
|
|
in all cases, even if there is no match.
|
|
*** POTENTIAL INCOMPATIBILITY ***
|
|
|
|
156. 2/8/93 Added support for XPG3 %n$ conversion specifiers to "format"
|
|
command.
|
|
|
|
157. 2/17/93 Fixed bug in Tcl_Eval where errors due to infinite
|
|
recursion could result in core dumps.
|
|
|
|
158. 2/17/93 Improved the auto-load mechanism to deal gracefully (i.e.
|
|
return an error) with a situation where a library file that supposedly
|
|
defines a procedure doesn't actually define it.
|
|
|
|
159. 2/17/93 Renamed Tcl_UnixError procedure to Tcl_PosixError, and
|
|
changed errorCode variable usage to use POSIX as keyword instead of
|
|
UNIX.
|
|
*** POTENTIAL INCOMPATIBILITY ***
|
|
|
|
160. 2/19/93 Changes to exec and process control:
|
|
- Added support for >>, >&, >>&, |&, <@, >@, and >&@ forms of redirection.
|
|
- When exec puts processes into background, it returns a list of
|
|
their pids as result.
|
|
- Added support for <file, >file, etc. (i.e. no space between
|
|
">" and file name.
|
|
- Added -keepnewline option.
|
|
- Deleted Tcl_Fork and Tcl_WaitPids procedures (just use fork and
|
|
waitpid instead).
|
|
- Added waitpid compatibility procedure for systems that don't have
|
|
it.
|
|
- Added Tcl_ReapDetachedProcs procedure.
|
|
- Changed "exec" to return an error if there is stderr output, even
|
|
if the command returns a 0 exit status (it's always been documented
|
|
this way, but the implementation wasn't correct).
|
|
- If a process returns a non-zero exit status but doesn't generate
|
|
any diagnostic output, then Tcl generates an error message for it.
|
|
*** POTENTIAL INCOMPATIBILITY ***
|
|
|
|
161. 2/25/93 Fixed two memory-management problems having to do with
|
|
managing the old result during variable trace callbacks.
|
|
|
|
162. 3/1/93 Added dynamic string library: Tcl_DStringInit, Tcl_DStringAppend,
|
|
Tcl_DStringFree, Tcl_DStringResult, etc.
|
|
|
|
163. 3/1/93 Modified glob command to only return the names of files that
|
|
exist, and to only return names ending in "/" if the file is a directory.
|
|
*** POTENTIAL INCOMPATIBILITY ***
|
|
|
|
164. 3/19/93 Modified not to use system calls like "read" directly,
|
|
but instead to use special Tcl procedures that retry automatically
|
|
if interrupted by signals.
|
|
|
|
165. 4/3/93 Eliminated "noSep" argument to Tcl_AppendElement, plus
|
|
TCL_NO_SPACE flag for Tcl_SetVar and Tcl_SetVar2.
|
|
*** POTENTIAL INCOMPATIBILITY ***
|
|
|
|
166. 4/3/93 Eliminated "flags" and "termPtr" arguments to Tcl_Eval.
|
|
*** POTENTIAL INCOMPATIBILITY ***
|
|
|
|
167. 4/3/93 Changes to expressions:
|
|
- The "expr" command now accepts multiple arguments, which are
|
|
concatenated together with space separators.
|
|
- Integers aren't automatically promoted to floating-point if they
|
|
overflow the word size: errors are generated instead.
|
|
- Tcl can now handle "NaN" and other special values if the underlying
|
|
library procedures handle them.
|
|
- When printing floating-point numbers, Tcl ensures that there is a "."
|
|
or "e" in the number, so it can't be treated as an integer accidentally.
|
|
The procedure Tcl_PrintDouble is available to provide this function
|
|
in other contexts. Also, the variable "tcl_precision" can be used
|
|
to set the precision for printing (must be a decimal number giving
|
|
digits of precision).
|
|
- Expressions now support transcendental and other functions, e.g. sin,
|
|
acos, hypot, ceil, and round. Can add new math functions with
|
|
Tcl_CreateMathFunc().
|
|
- Boolean expressions can now have any of the string values accepted
|
|
by Tcl_GetBoolean, such as "yes" or "no".
|
|
*** POTENTIAL INCOMPATIBILITY ***
|
|
|
|
168. 4/5/93 Changed Tcl_UnsetVar and Tcl_UnsetVar2 to return TCL_OK
|
|
or TCL_ERROR instead of 0 or -1.
|
|
*** POTENTIAL INCOMPATIBILITY ***
|
|
|
|
169. 4/5/93 Eliminated Tcl_CmdBuf structure and associated procedures;
|
|
can use Tcl_DStrings instead.
|
|
*** POTENTIAL INCOMPATIBILITY ***
|
|
|
|
170. 4/8/93 Changed interface to Tcl_TildeSubst to use a dynamic
|
|
string for buffer space. This makes the procedure re-entrant and
|
|
thread-safe, whereas it wasn't before.
|
|
*** POTENTIAL INCOMPATIBILITY ***
|
|
|
|
171. 4/14/93 Eliminated tclHash.h, and moved everything from it to
|
|
tcl.h
|
|
*** POTENTIAL INCOMPATIBILITY ***
|
|
|
|
172. 4/15/93 Eliminated Tcl_InitHistory, made "history" command always
|
|
be part of interpreter.
|
|
*** POTENTIAL INCOMPATIBILITY ***
|
|
|
|
173. 4/16/93 Modified "file" command so that "readable" option always
|
|
exists, even on machines that don't support symbolic links (always returns
|
|
same error as if the file wasn't a symbolic link).
|
|
|
|
174. 4/26/93 Fixed bugs in "regsub" where ^ patterns didn't get handled
|
|
right (pretended not to match when it really did, and looped infinitely
|
|
if -all was specified).
|
|
|
|
175. 4/29/93 Various improvements in the handling of variables:
|
|
- Can create variables and array elements during a read trace.
|
|
- Can delete variables during traces (note: unset traces will be
|
|
invoked when this happens).
|
|
- Can upvar to array elements.
|
|
- Can retarget an upvar to another variable by re-issuing the
|
|
upvar command with a different "other" variable.
|
|
|
|
176. 5/3/93 Added Tcl_GetCommandInfo, which returns info about a Tcl
|
|
command such as whether it exists and its ClientData. Also added
|
|
Tcl_SetCommandInfo, which allows any of this information to be modified
|
|
and also allows a command's delete procedure to have a different
|
|
ClientData value than its command procedure.
|
|
|
|
177. 5/5/93 Added Tcl_RegExpMatch procedure.
|
|
|
|
178. 5/6/93 Fixed bug in "scan" where it didn't properly handle
|
|
%% conversion specifiers. Also changed "scan" to use Tcl_PrintDouble
|
|
for printing real values.
|
|
|
|
179. 5/7/93 Added "-exact", "-glob", and "-regexp" options to "lsearch"
|
|
command to allow different kinds of pattern matching.
|
|
|
|
180. 5/7/93 Added many new switches to "lsort" to control the sorting
|
|
process: "-ascii", "-integer", "-real", "-command", "-increasing",
|
|
and "-decreasing".
|
|
|
|
181. 5/10/93 Changes to file I/O:
|
|
- Modified "open" command to support a list of POSIX access flags
|
|
like {WRONLY CREAT TRUNC} in addition to current fopen-style
|
|
access modes. Also added "permissions" argument to set permissions
|
|
of newly-created files.
|
|
- Fixed Scott Bolte's bug (can close stdin etc. in application and
|
|
then re-open them with Tcl commands).
|
|
- Exported access to Tcl's file table with new procedures Tcl_EnterFile
|
|
and Tcl_GetOpenFile.
|
|
|
|
182. 5/15/93 Added new "pid" command, which can be used to retrieve
|
|
either the current process id or a list of the process ids in a
|
|
pipeline opened with "open |..."
|
|
|
|
183. 6/3/93 Changed to use GNU autoconfig for configuration instead of
|
|
the home-brew "config" script. Also made many other configuration-related
|
|
changes, such as using <unistd.h> instead of explicitly declaring system
|
|
calls in tclUnix.h.
|
|
|
|
184. 6/4/93 Fixed bug where core-dumps could occur if a procedure
|
|
redefined itself (the memory for the procedure's body could get
|
|
reallocated in the middle of evaluating the body); implemented
|
|
simple reference count mechanism.
|
|
|
|
185. 6/5/93 Changed tclIndex file format in two ways: (a) it's now
|
|
eval-ed instead of parsed, which makes it 3-4x faster; (b) the entries
|
|
in auto_index are now commands to evaluate, which allows commands to
|
|
be loaded in different ways such as dynamic-loading of C code. The
|
|
old tclIndex file format is still supported.
|
|
|
|
186. 6/7/93 Eliminated tclTest program, added new "tclsh" program
|
|
that is more like wish (allows script files to be invoked automatically
|
|
using "#!/usr/local/bin/tclsh", makes arguments available to script,
|
|
etc.). Added support for Tcl_AppInit plus default version; this
|
|
allows new Tcl applications to be created without modifying the
|
|
main program for tclsh.
|
|
|
|
187. 6/7/93 Fixed bug in TclWordEnd that kept backslash-newline from
|
|
working correctly in some cases during interactive input.
|
|
|
|
188. 6/9/93 Added Tcl_LinkVar and related procedures, which automatically
|
|
keep a Tcl variable in sync with a C variable.
|
|
|
|
189. 6/16/93 Increased maximum nesting depth from 100 to 1000.
|
|
|
|
190. 6/16/93 Modified "trace var" command so that error messages from
|
|
within traces are returned properly as the result of the variable
|
|
access, instead of the generic "access disallowed by trace command"
|
|
message.
|
|
|
|
191. 6/16/93 Added Tcl_CallWhenDeleted to provide callbacks when an
|
|
interpreter is deleted (same functionality as Tcl_WatchInterp, which
|
|
used to exist in versions before 6.0).
|
|
|
|
193. 6/16/93 Added "-code" argument to "return" command; it's there
|
|
primarily for completeness, so that procedures implementing control
|
|
constructs can reflect exceptional conditions back to their callers.
|
|
|
|
194. 6/16/93 Split up Tcl.n to make separate manual entries for each
|
|
Tcl command. Tcl.n now contains a summary of the language syntax.
|
|
|
|
195. 6/17/93 Added new "switch" command to replace "case": allows
|
|
alternate forms of pattern matching (exact, glob, regexp), replaces
|
|
pattern lists with single patterns (but you can use "-" bodies to
|
|
share one body among several patterns), eliminates "in" noise word.
|
|
"Case" command is now obsolete.
|
|
|
|
196. 6/17/93 Changed the "exec", "glob", "regexp", and "regsub" commands
|
|
to include a "--" switch. All initial arguments starting with "-" are now
|
|
treated as switches unless a "--" switch is present to end the list.
|
|
*** POTENTIAL INCOMPATIBILITY ***
|
|
|
|
197. 6/17/93 Changed auto-exec so that the subprocess gets stdin, stdout,
|
|
and stderr from the parent. This allows truly interactive sub-processes
|
|
(e.g. vi) to be auto-exec'ed from a tcl shell command line.
|
|
|
|
198. 6/18/93 Added patchlevel.h, for use in coordinating future patch
|
|
releases, and also added "info patchlevel" command to make the patch
|
|
level available to Tcl scripts.
|
|
|
|
199. 6/19/93 Modified "glob" command so that a leading "//" in a name
|
|
gets left as is (this is needed for systems like Apollos where "//" is
|
|
the super-root; Tcl used to collapse the two slashes into a single
|
|
slash).
|
|
|
|
200. 7/7/93 Added Tcl_SetRecursionLimit procedure so that the maximum
|
|
allowable nesting depth can be controlled for an interpreter from C.
|
|
|
|
----------------- Released version 7.0 Beta 1, 7/9/93 ------------------
|
|
|
|
201. 7/12/93 Modified Tcl_GetInt and tclExpr.c so that full-precision
|
|
unsigned integers can be specified without overflow errors.
|
|
|
|
202. 7/12/93 Configuration changes: eliminate leading blank line in
|
|
configure script; provide separate targets in Makefile for installing
|
|
binary and non-binary information; check for size_t and a few other
|
|
potentially missing typedefs; don't put tclAppInit.o into libtcl.a;
|
|
better checks for matherr support.
|
|
|
|
203. 7/14/93 Changed tclExpr.c to check the termination pointer before
|
|
errno after strtod calls, to avoid problems with some versions of
|
|
strtod that set errno in unexpected ways.
|
|
|
|
204. 7/16/93 Changed "scan" command to be more ANSI-conformant:
|
|
eliminated %F, %D, etc., added code to ignore "l", "h", and "L"
|
|
modifiers but always convert %e, %f, and %g with implicit "l";
|
|
also added support for %u and %i. Also changed "format" command
|
|
to eliminate %D, %U, %O, and add %i.
|
|
*** POTENTIAL INCOMPATIBILITY ***
|
|
|
|
205. 7/17/93 Changed "uplevel" and "upvar" so that they can be used
|
|
from global level to global level: this used to generate an error.
|
|
|
|
206. 7/19/93 Renamed "setenv", "putenv", and "unsetenv" procedures
|
|
to avoid conflicts with system procedures with the same names. If
|
|
you want Tcl's procedures to override the system procedures, do it
|
|
in the Makefile (instructions are in the Makefile).
|
|
*** POTENTIAL INCOMPATIBILITY ***
|
|
|
|
----------------- Released version 7.0 Beta 2, 7/21/93 ------------------
|
|
|
|
207. 7/21/93 Fixed bug in tclVar.c where freed memory was accidentally
|
|
used if a procedure returned an element of a local array.
|
|
|
|
208. 7/22/93 Fixed bug in "unknown" where it didn't properly handle
|
|
errors occurring in the "auto_load" procedure, leaving its state
|
|
inconsistent.
|
|
|
|
209. 7/23/93 Changed exec's ">2" redirection operator to "2>" for
|
|
consistency with sh. This is incompatible with earlier beta releases
|
|
of 7.0 but not with pre-7.0 releases, which didn't support either
|
|
operator.
|
|
|
|
210. 7/28/93 Changed backslash-newline handling so that the resulting
|
|
space character *is* treated as a word separator unless the backslash
|
|
sequence is in quotes or braces. This is incompatible with 7.0b1
|
|
and 7.0b2 but is more compatible with pre-7.0 versions that the b1
|
|
and b2 releases were.
|
|
|
|
211. 7/28/93 Eliminated Tcl_LinkedVarWritable, added TCL_LINK_READ_ONLY to
|
|
Tcl_LinkVar to accomplish same purpose. This change is incompatible
|
|
with earlier beta releases, but not with releases before Tcl 7.0.
|
|
|
|
212. 7/29/93 Renamed regexp C functions so they won't clash with POSIX
|
|
regexp functions that use the same name.
|
|
|
|
213. 8/3/93 Added "-errorinfo" and "-errorcode" options to "return"
|
|
command: these allow for much better handling of the errorInfo
|
|
and errorCode variables in some cases.
|
|
|
|
214. 8/12/93 Changed "expr" so that % always returns a remainder with
|
|
the same sign as the divisor and absolute value smaller than the
|
|
divisor.
|
|
|
|
215. 8/14/93 Turned off auto-exec in "unknown" unless the command
|
|
was typed interactively. This means you must use "exec" when
|
|
invoking subprocesses, unless it's a command that's typed interactively.
|
|
*** POTENTIAL INCOMPATIBILITY ***
|
|
|
|
216. 8/14/93 Added support for tcl_prompt1 and tcl_prompt2 variables
|
|
to tclMain.c: makes prompts user-settable.
|
|
|
|
217. 8/14/93 Added asynchronous handlers (Tcl_AsyncCreate etc.) so
|
|
that signals can be taken cleanly by Tcl applications.
|
|
|
|
218. 8/16/93 Moved information about open files from the interpreter
|
|
structure to global variables so that a file can be opened in one
|
|
interpreter and read or written in another.
|
|
|
|
219. 8/16/93 Removed ENV_FLAGS from Makefile, so that there's no
|
|
official support for overriding setenv, unsetenv, and putenv.
|
|
|
|
220. 8/20/93 Various configuration improvements: coerce chars
|
|
to unsigned chars before using macros like isspace; source ~/.tclshrc
|
|
file during initialization if it exists and program is running
|
|
interactively; allow there to be directories in auto_path that don't
|
|
exist or don't have tclIndex files (ignore them); added Tcl_Init
|
|
procedure and changed Tcl_AppInit to call it.
|
|
|
|
221. 8/21/93 Fixed bug in expr where "+", "-", and " " were all
|
|
getting treated as integers with value 0.
|
|
|
|
222. 8/26/93 Added "tcl_interactive" variable to tclsh.
|
|
|
|
223. 8/27/93 Added procedure Tcl_FilePermissions to return whether a
|
|
given file can be read or written or both. Modified Tcl_EnterFile
|
|
to take a permissions mask rather than separate read and write arguments.
|
|
|
|
224. 8/28/93 Fixed performance bug in "glob" command (unnecessary call
|
|
to "access" for each file caused a 5-10x slow-down for big directories).
|
|
|
|
----------------- Released version 7.0 Beta 3, 8/28/93 ------------------
|
|
|
|
225. 9/9/93 Renamed regexp.h to tclRegexp.h to avoid conflicts with system
|
|
include file by same name.
|
|
|
|
226. 9/9/93 Added Tcl_DontCallWhenDeleted.
|
|
|
|
227. 9/16/93 Changed not to call exit C procedure directly; instead
|
|
always invoke "exit" Tcl command so that application can redefine the
|
|
command to do additional cleanup.
|
|
|
|
228. 9/17/93 Changed auto-exec to handle names that contain slashes
|
|
(i.e. don't use PATH for them).
|
|
|
|
229. 9/23/93 Fixed bug in "read" and "gets" commands where they didn't
|
|
clear EOF conditions.
|
|
|
|
----------------- Released version 7.0, 9/29/93 ------------------
|
|
|
|
230. 10/7/93 "Scan" command wasn't properly aligning things in memory,
|
|
so segmentation faults could arise under some circumstances.
|
|
|
|
231. 10/7/93 Fixed bug in Tcl_ConvertElement where it forgot to
|
|
backslash leading curly brace when creating lists.
|
|
|
|
232. 10/7/93 Eliminated dependency of tclMain.c on tclInt.h and
|
|
tclUnix.h, so that people can copy the file out of the Tcl source
|
|
directory to make modified private versions.
|
|
|
|
233. 10/8/93 Fixed bug in auto-loader that reversed the priority order
|
|
of entries in auto_path for new-style index files. Now things are
|
|
back to the way they were before 3.0: first in auto_path is always
|
|
highest priority.
|
|
|
|
234. 10/13/93 Fixed bug where Tcl_CommandComplete didn't recognize
|
|
comments and treat them as such. Thus if you typed the line
|
|
# {
|
|
interactively, Tcl would think that the command wasn't complete and
|
|
wait for more input before evaluating the script.
|
|
|
|
235. 10/14/93 Fixed bug where "regsub" didn't set the output variable
|
|
if the input string was empty.
|
|
|
|
236. 10/23/93 Fixed bug where Tcl_CreatePipeline didn't close off enough
|
|
file descriptors in child processes, causing children not to exit
|
|
properly in some cases.
|
|
|
|
237. 10/28/93 Changed "list" and "concat" commands not to generate
|
|
errors if given zero arguments, but instead to just return an empty
|
|
string.
|
|
|
|
----------------- Released version 7.1, 11/4/93 ------------------
|
|
|
|
Note: there is no 7.2 release. It was flawed and was thus withdrawn
|
|
shortly after it was released.
|
|
|
|
238. 11/10/93 TclMain.c didn't compile on some systems because of
|
|
R_OK in call to "access". Changed to eliminate call to "access".
|
|
|
|
----------------- Released version 7.3, 11/26/93 ------------------
|
|
|
|
239. 11/6/93 Modified "lindex", "linsert", "lrange", and "lreplace"
|
|
so that "end" can be specified as an index.
|
|
|
|
240. 11/6/93 Modified "append" and "lappend" to allow only two
|
|
words total (i.e., nothing to append) without generating an error.
|
|
|
|
241. 12/2/93 Changed to use EAGAIN as the errno for non-blocking
|
|
I/O instead of EWOULDBLOCK: this should fix problem where non-blocking
|
|
I/O didn't work correctly on System-V systems.
|
|
|
|
242. 12/22/93 Fixed bug in expressions where cancelled evaluation
|
|
wasn't always working correctly (e.g. "set one 1; eval {1 || 1/$one}"
|
|
failed with a divide by zero error).
|
|
|
|
243. 1/6/94 Changed TCL_VOLATILE definition from -1 to the address of
|
|
a dummy procedure Tcl_Volatile, since -1 causes portability problems on
|
|
some machines (e.g., Crays).
|
|
|
|
244. 2/4/94 Added support for unary plus.
|
|
|
|
245. 2/17/94 Changed Tcl_RecordAndEval and "history" command to
|
|
call Tcl_GlobalEval instead of Tcl_Eval. Otherwise, invocation of
|
|
these facilities in nested procedures can cause unwanted results.
|
|
|
|
246. 2/17/94 Fixed bug in tclExpr.c where an expression such as
|
|
"expr {"12398712938788234-1298379" != ""}" triggers an integer
|
|
overflow error for the number in quotes, even though it isn't really
|
|
a proper integer anyway.
|
|
|
|
247. 2/19/94 Added new procedure Tcl_DStringGetResult to move result
|
|
from interpreter to a dynamic string.
|
|
|
|
248. 2/19/94 Fixed bug in Tcl_DStringResult that caused it to overwrite
|
|
the contents of a static result in some situations. This can cause
|
|
bizarre errors such as variables suddenly having empty values.
|
|
|
|
249. 2/21/94 Fixed bug in Tcl_AppendElement, Tcl_DStringAppendElement,
|
|
and the "lappend" command that caused improper omission of a separator
|
|
space in some cases. For example, the script
|
|
set x "abc{"; lappend x "def"
|
|
used to return the result "abc{def" instead of "abc{ def".
|
|
|
|
250. 3/3/94 Tcl_ConvertElement was outputting empty elements as \0 if
|
|
TCL_DONT_USE_BRACES was set. This depends on old pre-7.0 meaning of
|
|
\0, which is no longer in effect, so it didn't really work. Changed
|
|
to output empty elements as {} always.
|
|
|
|
251. 3/3/94 Renamed Tcl_DStringTrunc to Tcl_DStringSetLength and extended
|
|
it so that it can be used to lengthen a string as well as shorten it.
|
|
Tcl_DStringTrunc is defined as a macro for backward compatibility, but
|
|
it is deprecated.
|
|
|
|
252. 3/3/94 Added Tcl_AllowExceptions procedure.
|
|
|
|
253. 3/13/94 Fixed bug in Tcl_FormatCmd that could cause "format"
|
|
to mis-behave on 64-bit Big-Endian machines.
|
|
|
|
254. 3/13/94 Changed to use vfork instead of fork on systems where
|
|
vfork exists.
|
|
|
|
255. 3/23/94 Fixed bug in expressions where ?: didn't associate
|
|
right-to-left as they should.
|
|
|
|
256. 4/3/94 Fixed "exec" to flush any files used in >@ or >&@
|
|
redirection in exec, so that data buffered for them is written
|
|
before any new data added by the subprocess.
|
|
|
|
257. 4/3/94 Added "subst" command.
|
|
|
|
258. 5/20/94 The tclsh main program is now called Tcl_Main; tclAppInit.c
|
|
has a "main" procedure that calls Tcl_Main. This makes it easier to use
|
|
Tcl with C++ programs, which need their own main programs, and it also
|
|
allows an application to prefilter the argument list before calling
|
|
Tcl_Main.
|
|
*** POTENTIAL INCOMPATIBILITY ***
|
|
|
|
259. 6/6/94 Fixed bug in procedure returns where the errorInfo variable
|
|
could get truncated if an unset trace was invoked as part of returning
|
|
from the procedure.
|
|
|
|
260. 6/13/94 Added "wordstart" and "wordend" options to "string" command.
|
|
|
|
261. 6/27/94 Fixed bug in expressions where they didn't properly cancel
|
|
the evaluation of math functions in &&, ||, and ?:.
|
|
|
|
262. 7/11/94 Incorrect boolean values, like "ogle", weren't being
|
|
handled properly.
|
|
|
|
263. 7/15/94 Added Tcl_RegExpCompile, Tcl_RegExpExec, and Tcl_RegExpRange,
|
|
which provide lower-level access to regular expression pattern matching.
|
|
|
|
264. 7/22/94 Fixed bug in "glob" command where "glob -nocomplain ~bad_user"
|
|
would complain about a missing user. Now it doesn't complain anymore.
|
|
|
|
265. 8/4/94 Fixed bug with linked variables where they didn't behave
|
|
correctly when accessed via upvars.
|
|
|
|
266. 8/17/94 Fixed bug in Tcl_EvalFile where it didn't clear interp->result.
|
|
|
|
267. 8/31/94 Modified "open" command so that errors in exec-ing
|
|
subprocesses are returned by the open immediately, rather than
|
|
being delayed until the "close" is executed.
|
|
|
|
268. 9/9/94 Modified "expr" command to generate errors for integer
|
|
overflow (includes addition, subtraction, negation, multiplication,
|
|
division).
|
|
|
|
269. 9/23/94 Modified "regsub" to return a count of the number of
|
|
matches and replacements, rather than 0/1.
|
|
|
|
279. 10/4/94 Added new features to "array" command:
|
|
- added "get" and "set" commands for easy conversion between arrays
|
|
and lists.
|
|
- added "exists" command to see if a variable is an array, changed
|
|
"names" and "size" commands to treat a non-existent array (or scalar
|
|
variable) just like an empty one.
|
|
- added pattern option to "names" command.
|
|
|
|
280. 10/6/94 Modified Tcl_SetVar2 so that read traces on variables get
|
|
called during append operations.
|
|
|
|
281. 10/20/94 Fixed bug in "read" command where reading from stdin
|
|
required two control-D's to stop the reading.
|
|
|
|
282. 11/3/94 Changed "expr" command to use longs for division just like
|
|
all other expr operators; it previously used ints for division.
|
|
|
|
283. 11/4/94 Fixed bugs in "unknown" procedure: it wasn't properly
|
|
handling exception returns from commands that were executed after
|
|
being auto-loaded.
|
|
|
|
----------------- Released version 7.4b1, 12/23/94 ------------------
|
|
|
|
284. 12/26/94 Fixed "install" target in Makefile (couldn't always
|
|
find install program).
|
|
|
|
285. 12/26/94 Added strcncasecmp procedure to compat directory.
|
|
|
|
286. 1/3/95 Fixed all procedure calls to explicitly cast arguments:
|
|
implicit conversions from prototypes (especially integer->double)
|
|
don't work when compiling under non-ANSI compilers. Tcl is now clean
|
|
under gcc -Wconversion.
|
|
|
|
287. 1/4/95 Fixed problem in Tcl_ArrayCmd where same name was used for
|
|
both a label and a variable; caused problems on several older compilers,
|
|
making array command misbehave and causing many errors in Tcl test suite.
|
|
|
|
----------------- Released version 7.4b2, 1/12/95 ------------------
|
|
|
|
288. 2/9/95 Modified Tcl_CreateCommand to return a token, and added
|
|
Tcl_GetCommandName procedure. Together, these procedures make it possible
|
|
to track renames of a command.
|
|
|
|
289. 2/13/95 Fixed bug in expr where "089" was interpreted as a
|
|
floating-point number rather than a bogus octal number.
|
|
*** POTENTIAL INCOMPATIBILITY ***
|
|
|
|
290. 2/14/95 Added code to Tcl_GetInt and Tcl_GetDouble to check for
|
|
overflows when reading in numbers.
|
|
|
|
291. 2/18/95 Changed "array set" to stop after first error, rather than
|
|
continuing after error.
|
|
|
|
292. 2/20/95 Upgraded to use autoconf version 2.2.
|
|
|
|
293. 2/20/95 Fixed core dump that could occur in "scan" command if a
|
|
close bracket was omitted.
|
|
|
|
294. 2/27/95 Changed Makefile to always use install-sh for installations:
|
|
there's just too much variation among "install" system programs, which
|
|
makes installation flakey.
|
|
|
|
----------------- Released version 7.4b3, 3/24/95 ------------------
|
|
|
|
3/25/95 (bug fix) Changed "install" to "./install" in Makefile so that
|
|
"make install" will work even when "." isn't in the search path.
|
|
|
|
3/29/95 (bug fix) Fixed bug where the auto-loading mechanism wasn't
|
|
protecting the values of the errorCode and errorInfo variables.
|
|
|
|
3/29/95 (new feature) Added optional pattern argument to "parray" procedure.
|
|
|
|
3/29/95 (bug fix) Made the full functionality of
|
|
"return -code ... -errorcode ..."
|
|
work not just inside procedures, but also in sourced files and at
|
|
top level.
|
|
|
|
4/6/95 (new feature) Added "pattern" option to "array names" command.
|
|
|
|
4/18/95 (bug fix) Fixed bug in parser where it didn't allow backslash-newline
|
|
immediately after an argument in braces or quotes.
|
|
|
|
4/19/95 (new feature) Added tcl_library variable, which application can
|
|
set to override default library directory.
|
|
|
|
4/30/95 (bug fix) During trace callbacks for array elements, the variable
|
|
name used in the original reference would be temporarily modified to
|
|
separate the array name and element name; if the trace callback used
|
|
the same name string, it would get the wrong name (the array name without
|
|
element). Fixed to restore the variable name before making trace
|
|
callbacks.
|
|
|
|
4/30/95 (new feature) Added -nobackslashes, -nocommands, and -novariables
|
|
switches to "subst" command.
|
|
|
|
5/4/95 (new feature) Added TCL_EVAL_GLOBAL flag to Tcl_RecordAndEval.
|
|
|
|
5/5/95 (bug fix) Format command would overrun memory when printing
|
|
integers with very large precision, as in "format %.1000d 0".
|
|
|
|
5/5/95 (portability improvement) Changed to use BSDgettimeofday on
|
|
IRIX machines, to avoid compilation problems with the gettimeofday
|
|
declaration.
|
|
|
|
5/6/95 (bug fix) Changed manual entries to use the standard .TH
|
|
macro instead of a custom .HS macro; the .HS macro confuses index
|
|
generators like makewhatis.
|
|
|
|
5/9/95 (bug fix) Modified configure script to check for Solaris bug
|
|
that makes vfork unreliable (core dumps result if vforked child
|
|
changes a signal handler); will use fork instead of vfork if the
|
|
bug is present.
|
|
|
|
6/5/95 (bug fix) Modified "lsort" command to disallow recursive calls
|
|
to lsort from a comparison function. This is needed because qsort
|
|
is not reentrant.
|
|
|
|
6/5/95 (bug fix) Undid change 243 above: changed TCL_VOLATILE and
|
|
TCL_DYNAMIC back to integer constants rather than procedure addresses.
|
|
This was needed because procedure addresses can have multiple values
|
|
under some dynamic loading systems (e.g. SunOS 4.1 and Windows).
|
|
|
|
6/8/95 (feature change) Modified interface to Tcl_Main to pass in the
|
|
address of the application-specific initialization procedure.
|
|
Tcl_AppInit is no longer hardwired into Tcl_Main. This is needed
|
|
in order to make Tcl a shared library.
|
|
|
|
6/8/95 (feature change) Modified Makefile so that the installed versions
|
|
of tclsh and libtcl.a have version number in them (e.g. tclsh7.4 and
|
|
libtcl7.4.a) and the library directory name also has an embedded version
|
|
number (e.g., /usr/local/lib/tcl7.4). This should make it easier for
|
|
Tcl 7.4 to coexist with earlier versions.
|
|
|
|
----------------- Released version 7.4b4, 6/16/95 ------------------
|
|
|
|
6/19/95 (bug fix) Fixed bugs in tclCkalloc.c that caused core dumps
|
|
if TCL_MEM_DEBUG was enabled on word-addressed machines such as Crays.
|
|
|
|
6/21/95 (feature removal) Removed overflow checks for integer arithmetic:
|
|
they just cause too much trouble (e.g. for random number generators).
|
|
|
|
6/28/95 (new features) Added tcl_patchLevel and tcl_version variables,
|
|
for consistency with Tk.
|
|
|
|
6/29/95 (bug fix) Fixed problem in Tcl_Eval where it didn't record
|
|
the right termination character if a script ended with a comment. This
|
|
caused erroneous output for the following command, among others:
|
|
puts "[
|
|
expr 1+1
|
|
# duh!
|
|
]"
|
|
|
|
6/29/95 (message change) Changed the error message for ECHILD slightly
|
|
to provide a hint about why the problem is occurring.
|
|
|
|
----------------- Released version 7.4, 7/1/95 ------------------
|
|
|
|
7/18/95 (bug fix) Changed "lreplace" so that nothing is deleted if
|
|
the last index is less than the first index or if the last index
|
|
is < 0.
|
|
|
|
7/18/95 (bug fix) Fixed bugs with backslashes in comments:
|
|
Tcl_CommandComplete (and "info complete") didn't properly handle
|
|
strings ending in backslash-newline, and neither Tcl_CommandComplete
|
|
nor the Tcl parser handled other backslash sequences right, such
|
|
as two backslashes before a newline.
|
|
|
|
7/19/95 (bug fix) Modified Tcl_DeleteCommand to delete the hash table
|
|
entry for the command before invoking its callback. This is needed in
|
|
order to deal with reentrancy.
|
|
|
|
7/22/95 (bug fix) "exec" wasn't reaping processes correctly after
|
|
certain errors (e.g. if the name of the executable was bogus, as
|
|
in "exec foobar").
|
|
|
|
7/27/95 (bug fix) Makefile.in wasn't using the LIBS variable provided
|
|
by the "configure" script. This caused problems on some SCO systems.
|
|
|
|
7/27/95 (bug fix) The version of strtod in fixstrtod.c didn't properly
|
|
handle the case where endPtr == NULL.
|
|
|
|
----------------- Released patch 7.4p1, 7/29/95 -----------------------
|
|
|
|
8/4/95 (bug fix) C-level trace callbacks for variables were sometimes
|
|
receiving the PART1_NOT_PARSED flag, which could cause errors in
|
|
subsequent Tcl library calls using the flags. (JO)
|
|
|
|
8/4/95 (bug fix) Calls to toupper and tolower weren't using the
|
|
UCHAR macros, which caused trouble in non-U.S. locales. (JO)
|
|
|
|
8/10/95 (new feature) Added the "load" command for dynamic loading of
|
|
binary packages, and the Tcl_PackageInitProc prototype for package
|
|
initialization procedures. (JO)
|
|
|
|
8/23/95 (new features) Added "info sharedlibextension" and
|
|
"info nameofexecutable" commands, plus Tcl_FindExtension procedure. (JO)
|
|
|
|
8/25/95 (bug fix) If the target of an "upvar" was non-existent but
|
|
had traces set, the traces were silently lost. Change to generate
|
|
an error instead. (JO)
|
|
|
|
8/25/95 (bug fix) Undid change from 7/19, so that commands can stay
|
|
around while their deletion callbacks execute. Added lots of code to
|
|
handle all of the reentrancy problems that this opens up. (JO)
|
|
|
|
8/25/95 (bug fix) Fixed core dump that could occur in TclDeleteVars
|
|
if there was an upvar from one entry in the table to the next entry
|
|
in the same table. (JO)
|
|
|
|
8/28/95 (bug fix) Exec wasn't handling bad user names properly, as
|
|
in "exec ~bogus_user/foo". (JO)
|
|
|
|
8/29/95 (bug fixes) Changed backslash-newline handling to correct two
|
|
problems:
|
|
- Only spaces and tabs following the backslash-newline are now
|
|
absorbed as part of the backslash-newline. Newlinew are no
|
|
longer absorbed (add another backslash if you want to absorb
|
|
another newline).
|
|
- TclWordEnd returns the character just before the backslash in
|
|
the sequence as the end of the sequence; it used to not consider
|
|
the backslash-newline as a word separator. (JO)
|
|
|
|
8/31/95 (new feature) Changed man page installation (with "mkLinks"
|
|
script) to create additional links for manual pages corresponding to
|
|
each of the procedure and command names described in the pages. (JO)
|
|
|
|
9/10/95 Reorganized Tcl sources for Windows and Mac ports. All sources
|
|
are now in subdirectories: "generic" contains sources that work on all
|
|
platforms, "windows", "mac", and "unix" directories contain platform-
|
|
specific sources. Some UNIX sources are also used on other platforms. (SS)
|
|
|
|
9/10/95 (feature change) Eliminated exported global variables (they
|
|
don't work with Windows DLLs). Replaced tcl_AsyncReady and
|
|
tcl_FileCloseProc with procedures Tcl_AsyncReady() and
|
|
Tcl_SetFileCloseProc(). Replaced C variable tcl_RcFileName with
|
|
a Tcl variable tcl_rcFileName. (SS)
|
|
*** POTENTIAL INCOMPATIBILITY ***
|
|
|
|
9/11/95 (new feature) Added procedure Tcl_SetPanicProc to override
|
|
the default implementation of "panic". (SS)
|
|
|
|
9/11/95 (new feature) Added "interp" command to allow creation of
|
|
new interpreters and execution of untrusted scripts. Added many new
|
|
procedures, such as Tcl_CreateSlave, Tcl_CreateAlias,and Tcl_MakeSafe,
|
|
to provide C-level access to the interpreter facility. This mechanism
|
|
now provides almost all of the generic functions of Borenstein's and
|
|
Rose's Safe-Tcl (but not any Tk or email-related stuff). (JL)
|
|
|
|
9/11/95 (feature change) Changed file management so that files are
|
|
no longer shared between interpreters: a file cannot normally be
|
|
referenced in one interpreter if it was opened in another. This
|
|
feature is needed to support safe interpreters. Added Tcl_ShareHandle()
|
|
procedure for allowing files to be shared, and added "interp" argument
|
|
to Tcl_FilePermissions procedure.
|
|
*** POTENTIAL INCOMPATIBILITY ***
|
|
|
|
9/11/95 (new feature) Added "AssocData" mechanism, whereby extensions
|
|
can associate their own data with an interpreter and get called back
|
|
when the interpreter is deleted. This is visible at C level via the
|
|
procedures Tcl_SetAssocData and Tcl_GetAssocData. (JL)
|
|
|
|
9/11/95 (new feature) Added Tcl_ErrnoMsg to translate an errno value
|
|
into a human-readable string. This is now used instead of calling
|
|
strerror because strerror mesages vary dramatically from platform
|
|
to platform, which messes up Tcl tests. Tcl_ErrnoMsg uses the standard
|
|
POSIX messages for all the common signals, and calls strerror for
|
|
signals it doesn't understand.
|
|
|
|
----------------- Released patch 7.5p2, 9/15/95 -----------------------
|
|
|
|
----------------- Released 7.5a1, 9/15/95 -----------------------
|
|
|
|
9/22/95 (bug fix) Changed auto_mkindex to create tclIndex files that
|
|
handle directories whose paths might contain spaces. (RJ)
|
|
|
|
9/27/95 (bug fix) The "format" command didn't check for huge or negative
|
|
width specifiers, which could cause core dumps. (JO)
|
|
|
|
9/27/95 (bug fix) Core dumps could occur if an interactive command typed
|
|
to tclsh returned a very long result for tclsh to print out. The bug is
|
|
actually in printf (in Solaris 2.3 and 2.4, at least); switched to use
|
|
puts instead. (JO)
|
|
|
|
9/28/95 (bug fix) Changed makefile.bc to eliminate a false dependency
|
|
for tcl1675.dll on the Borland run time library. (SS)
|
|
|
|
9/28/95 (bug fix) Fixed tcl75.dll so it looks for tcl1675.dll instead
|
|
of tcl16.dll. (SS)
|
|
|
|
9/28/95 (bug fix) Tcl was not correctly detecting the difference
|
|
between Win32s and Windows '95. (SS)
|
|
|
|
9/28/95 (bug fix) "exec" was not passing environment changes to child
|
|
processes under Windows. (SS)
|
|
|
|
9/28/95 (bug fix) Changed Tcl to ensure that open files are not passed
|
|
to child processes under Windows. (SS)
|
|
|
|
9/28/95 (bug fix) Fixed Windows '95 and NT versions of exec so it can
|
|
handle both console and windows apps. (SS)
|
|
|
|
9/28/95 (bug fix) Fixed Windows version of exec so it no longer leaves
|
|
temp files lying around. Also changed it so the temp files are
|
|
created in the appropriate system dependent temp directory. (SS)
|
|
|
|
9/28/95 (bug fix) Eliminated source dependency on the Win32s Universal
|
|
Thunk header file, since it is not bundled with VC++. (SS)
|
|
|
|
9/28/95 (bug fix) Under Windows, Tcl now constructs the HOME
|
|
environment variable from HOMEPATH and HOMEDRIVE when HOME is not
|
|
already set. (SS)
|
|
|
|
9/28/95 (bug fix) Added support for "info nameofexecutable" and "info
|
|
sharedlibextension" to the Windows version. (SS)
|
|
|
|
9/28/95 (bug fix) Changed tclsh to correctly parse command line
|
|
arguments so that backslashes are preserved under Windows. (SS)
|
|
|
|
9/29/95 (bug fix) Tcl 7.5a1 treated either return or newline as end
|
|
of line in "gets", which caused lines ending in CRLF to be treated as
|
|
two separate lines. Changed to allow only character as end-of-line:
|
|
carriage return on Macs, newline elsewhere. (JO)
|
|
|
|
9/29/95 (new feature) Changed to install "configInfo" file in same
|
|
directory as library scripts. It didn't used to get installed. (JO)
|
|
|
|
9/29/95 (bug fix) Tcl was not converting Win32 errors into POSIX
|
|
errors under some circumstances. (SS)
|
|
|
|
10/2/95 (bug fix) Safe interpreters no longer get initialized with
|
|
a call to Tcl_Init(). (JL)
|
|
|
|
10/1/95 (new feature) Added "tcl_platform" global variable to provide
|
|
environment information such as the instruction set and operating
|
|
system. (JO)
|
|
|
|
10/1/95 (bug fix) "exec" command wasn't always generating the
|
|
"child process exited abnormally" message when it should have. (JO)
|
|
|
|
10/2/95 (bug fix) Changed "mkLinks.tcl" so that the scripts it generates
|
|
won't create links that overwrite original manual entries (there was
|
|
a problem where pack-old.n was overwriting pack.n). (JO)
|
|
|
|
10/2/95 (feature change) Changed to use -ldl for dynamic loading under
|
|
Linux if it is available, but fall back to -ldld if it isn't. (JO)
|
|
|
|
10/2/95 (bug fix) File sharing was causing refcounts to reach 0
|
|
prematurely for stdin, stdout and stderr, under some circumstances. (JL)
|
|
|
|
10/2/95 (platform support) Added support for Visual C++ compiler on
|
|
Windows, Windows '95 and Windows NT, code donated by Gordon Chaffee. (JL)
|
|
|
|
10/3/95 (bug fix) Tcl now frees any libraries that it loads before it
|
|
exits. (SS)
|
|
|
|
10/03/95 (bug fix) Fixed bug in Macintosh ls command where the -l
|
|
and -C options would fail in anything but the HOME directory. (RJ)
|
|
|
|
----------------- Released 7.5a2, 10/6/95 -----------------------
|
|
|
|
10/10/95 (bug fix) "file dirnam /." was returning ":" on UNIX instead
|
|
of "/". (JO)
|
|
|
|
10/13/95 (bug fix) Eliminated dependency on MKS toolkit for generating
|
|
the tcl.def file from Borland object files. (SS)
|
|
|
|
10/17/95 (new features) Moved the event loop from Tcl to Tk, made major
|
|
revisions along the way:
|
|
- New Tcl commands: after, update, vwait (replaces "tkwait variable").
|
|
- "tkerror" is now replaced with "bgerror".
|
|
- The following procedures are similar to their old Tk counterparts:
|
|
Tcl_DoOneEvent, Tcl_Sleep, Tcl_DoWhenIdle, Tcl_CancelIdleCall,
|
|
Tcl_CreateFileHandler, Tcl_DeleteFileHandler, Tcl_CreateTimerHandler,
|
|
Tcl_DeleteTimerHandler, Tcl_BackgroundError.
|
|
- Revised notifier, add new concept of "event source" with the following
|
|
procedures: Tcl_CreateEventSource, Tcl_DeleteEventSource,
|
|
Tcl_WatchFile, Tcl_SetMaxBlockTime, Tcl_FileReady, Tcl_QueueEvent,
|
|
Tcl_WaitForEvent. (JO)
|
|
|
|
10/31/95 (new features) Implemented cross platform file name support to make
|
|
it easier to write cross platform scripts. Tcl now understands 4 file naming
|
|
conventions: Windows (both DOS and UNC), Mac, Unix, and Network. The network
|
|
convention is a new naming mechanism that can be used to paths in a platform
|
|
independent fashion. See the "file" command manual page for more details.
|
|
The primary interfaces changes are:
|
|
- All Tcl commands that expect a file name now accept both network and
|
|
native form.
|
|
- Two new "file" subcommands, "nativename" and "networkname", provide a
|
|
way to convert between network and native form.
|
|
- Renamed Tcl_TildeSubst to Tcl_TranslateFileName, and changed it so that
|
|
it always returns a filename in native form. Tcl_TildeSubst is defined
|
|
as a macro for backward compatibility, but it is deprecated. (SS)
|
|
|
|
11/5/95 (new feature) Made "tkerror" and "bgerror" synonyms, so that
|
|
either name can be used to manipulate the command (provides temporary
|
|
backward compatibility for existing scripts that use tkerror). (JO)
|
|
|
|
11/5/95 (new feature) Added exit handlers and new C procedures
|
|
Tcl_CreateExitHandler, Tcl_DeleteExitHandler, and Tcl_Exit. (JO)
|
|
|
|
11/6/95 (new feature) Added pid command for Macintosh version of
|
|
Tcl (it didn't previously exist on the Mac). (RJ)
|
|
|
|
11/7/95 (new feature) New generic IO facility and support for IO to
|
|
files, pipes and sockets based on a common buffering scheme. Support
|
|
for asynchronous (non-blocking) IO and for event driver IO. Support
|
|
for automatic (background) asynchronous flushing and asynchronous
|
|
closing of channels. (JL)
|
|
|
|
11/7/95 (new feature) Added new commands "fconfigure" and "fblocked"
|
|
to support new I/O features such as nonblocking I/O. Added "socket"
|
|
command for creating TCP client and server sockets. (JL).
|
|
|
|
11/7/95 (new feature) Complete set of C APIs to the new generic IO
|
|
facility:
|
|
- Opening channels: Tcl_OpenFileChannel, Tcl_OpenCommandChannel,
|
|
Tcl_OpenTcpClient, Tcl_OpenTcpServer.
|
|
- I/O procedures on channels, which roughly mirror the ANSI C stdio
|
|
library: Tcl_Read, Tcl_Gets, Tcl_Write, Tcl_Flush, Tcl_Seek,
|
|
Tcl_Tell, Tcl_Close, Tcl_Eof, Tcl_InputBlocked, Tcl_GetChannelOption,
|
|
Tcl_SetChannelOption.
|
|
- Extension mechanism for creating new kinds of channels:
|
|
Tcl_CreateChannel, Tcl_GetChannelInstanceData, Tcl_GetChannelType,
|
|
Tcl_GetChannelName, Tcl_GetChannelFile, Tcl_RegisterChannel,
|
|
Tcl_UnregisterChannel, Tcl_GetChannel.
|
|
- Event-driven I/O on channels: Tcl_CreateChannelHandler,
|
|
Tcl_DeleteChannelHandler. (JL)
|
|
|
|
11/7/95 (new feature) Channel driver interface specification to allow
|
|
new types of channels to be added easily to Tcl. Currently being used
|
|
in three drivers - for files, pipes and TCP-based sockets. (JL).
|
|
|
|
11/7/95 (new feature) interp delete now takes any number of path
|
|
names of interpreters to delete, including zero. (JL).
|
|
|
|
11/8/95 (new feature) implemented 'info hostname' and Tcl_GetHostName
|
|
command to get host name of machine on which the Tcl process is running. (JL)
|
|
|
|
11/9/95 (new feature) Implemented file APIs for access to low level files
|
|
on each system. The APIs are: Tcl_CloseFile, Tcl_OpenFile, Tcl_ReadFile,
|
|
Tcl_WriteFile and Tcl_SeekFile. Also implemented Tcl_WaitPid which waits
|
|
in a system dependent manner for a child process. (JL)
|
|
|
|
11/9/95 (new feature) Added Tcl_UpdateLinkedVar procedure to force a
|
|
Tcl variable to be updated after its C variable changes. (JO)
|
|
|
|
11/9/95 (bug fix) The glob command has been totally reimplemented so
|
|
that it can support different file name conventions. It now handles
|
|
Windows file names (both UNC and drive-relative) properly. It also
|
|
supports nested braces correctly now. (SS)
|
|
|
|
11/13/95 (bug fix) Fixed Makefile.in so that configure can be run
|
|
from a clean directory separate from the Tcl source tree, and compilations
|
|
can be performed there. (JO)
|
|
|
|
11/14/95 (bug fix) Fixed file sharing between interpreters and file
|
|
transferring between interpreters to correctly manage the refcount so that
|
|
files are closed when the last reference to them is discarded. (JL)
|
|
|
|
11/14/95 (bug fix) Fixed gettimeofday implementation for the
|
|
Macintosh. This fixes several timing related bugs. (RJ)
|
|
|
|
11/17/95 (new feature) Added missing support for info nameofexecutable
|
|
on the Macintosh. (RJ)
|
|
|
|
11/17/95 (bug fix) The Tcl variables argc argv and argv0 now return
|
|
something reasonable on the Mac. (RJ)
|
|
|
|
11/22/95 (new feature) Implemented "auto-detect" mode for end of line
|
|
translations. On input, standalone "\r" mean MAC mode, standalone "\n"
|
|
mean Unix mode and "\r\n" means Windows mode. On output, the mode is
|
|
modified to whatever the platform specific mode for that platform is. (JL)
|
|
|
|
11/24/95 (feature change) Replaced "configInfo" file with tclConfig.sh,
|
|
which is more complete and uses slightly different names. Also
|
|
arranged for tclConfig.sh to be installed in the platform-specific
|
|
library directory instead of Tcl's script library directory. (JO)
|
|
*** POTENTIAL INCOMPATIBILITY with Tcl 7.5a2, but not with Tcl 7.4 ***
|
|
|
|
----------------- Released patch 7.4p3, 11/28/95 -----------------------
|
|
|
|
12/5/95 (new feature) Added Tcl_File facility to support platform-
|
|
independent file handles. Changed all interfaces that used Unix-
|
|
style integer fd's to use Tcl_File's instead. (SS)
|
|
*** POTENTIAL INCOMPATIBILITY ***
|
|
|
|
12/5/95 (new feature) Added a new "clock" command to Tcl. The command
|
|
allows you to get the current "clicks" or seconds & allows you to
|
|
format or scan human readable time/date strings. (RJ)
|
|
|
|
12/18/95 (new feature) Moved Tk_Preserve, Tk_Release, and Tk_EventuallyFree
|
|
to Tcl, renamed to Tcl_Preserve, Tcl_Release, and Tcl_EventuallyFree. (JO)
|
|
|
|
12/18/95 (new feature) Added new "package" command and associated
|
|
procedures Tcl_PkgRequire and Tcl_PkgProvide. Also wrote
|
|
pkg_mkIndex library procedure to create index files from binaries
|
|
and scripts. (JO)
|
|
|
|
12/20/95 (new feature) Added Tcl_WaitForFile procedure. (JO)
|
|
|
|
12/21/95 (new features) Made package name argument to "load" optional
|
|
(Tcl will now attempt to guess the package name if necessary). Also
|
|
added Tcl_StaticPackage and support in "load" for statically linked
|
|
packages. (JO)
|
|
|
|
12/22/95 (new feature) Upgraded the foreach command to accept multiple
|
|
loop variables and multiple value lists. This lets you iterate over
|
|
multiple lists in parallel, and/or assign multiple loop variables from
|
|
one value list during each iteration. The only potential compatibility
|
|
problem is with scripts that used loop variables with a name that could be
|
|
construed to be a list of variable names (i.e. contained spaces). (BW)
|
|
|
|
1/5/96 (new feature) Changed tclsh so it builds as a console mode
|
|
application under Windows. Now tclsh can be used from the command
|
|
line with pipes or interactively. Note that this only works under
|
|
Windows 95 or NT. (SS)
|
|
|
|
1/17/96 (new feature) Modified Makefile and configure script to allow
|
|
Tcl to be compiled as a shared library: use the --enable-shared option
|
|
when configuing. (JO)
|
|
|
|
1/17/96 (removed obsolete features) Removed the procedures Tcl_EnterFile
|
|
and Tcl_GetOpenFile: these no longer make sense with the new I/O system. (JL)
|
|
*** POTENTIAL INCOMPATIBILITY ***
|
|
|
|
1/19/96 (bug fixes) Prevented formation of circular aliases, through the
|
|
Tcl 'interp alias' command and through the 'rename' command, as well as
|
|
through the C API Tcl_CreateAlias. (JL)
|
|
|
|
1/19/96 (bug fixes) Fixed several bugs in direct deletion of interpreters
|
|
with Tcl_DeleteInterp when the interpreter is a slave; fixes based on a
|
|
patch received from Viktor Dukhovni of ESM. (JL)
|
|
|
|
1/19/96 (new feature) Implemented on-close handlers for channels; added
|
|
the C APIs Tcl_CreateCloseHandler and Tcl_DeleteCloseHandler. (JL)
|
|
|
|
1/19/96 (new feature) Implemented portable error reporting mechanism; added
|
|
the C APIs Tcl_SetErrno and Tcl_GetErrno. (JL)
|
|
|
|
1/24/96 (bug fix) Unknown command processing properly invokes external
|
|
commands under Windows NT and Windows '95 now. (SS)
|
|
|
|
1/23/96 (bug fix) Eliminated extremely long startup times under Windows '95.
|
|
The problem was a result of the option database initialization code that
|
|
concatenated $HOME with /.Xdefaults, resulting in a // in the middle of the
|
|
file name. Under Windows '95, this is incorrectly interpreted as a UNC
|
|
path. They delays came from the network timeouts needed to determine that
|
|
the file name was invalid. Tcl_TranslateFileName now suppresses duplicate
|
|
slashes that aren't at the beginning of the file name. (SS)
|
|
|
|
1/25/96 (bug fix) Changed exec and open to create children so they are
|
|
attached to the application's console if it exists. (SS)
|
|
|
|
1/31/96 (bug fix) Fixed command line parsing to handle embedded
|
|
spaces under Windows. (SS)
|
|
|
|
----------------- Released 7.5b1, 2/1/96 -----------------------
|
|
|
|
2/7/96 (bug fix) Fixed off by one error in argument parsing code under
|
|
Windows. (SS)
|
|
|
|
2/7/96 (bug fix) Fixed bugs in VC++ makefile that improperly
|
|
initialized the tcl75.dll. Fixed bugs in Borland makefile that caused
|
|
build failures under Windows NT. (SS)
|
|
|
|
2/9/96 (bug fix) Fixed deadlock problem in AUTO end of line translation
|
|
mode which would cause a socket server with several concurrent clients
|
|
writing in CRLF mode to hang. (JL)
|
|
|
|
2/9/96 (API change) Replaced -linemode option to fconfigure with a
|
|
new -buffering option, added "none" setting to enable immediate write. (JL)
|
|
*** INCOMPATIBILITY with b1 ***
|
|
|
|
2/9/96 (new feature) Added C API Tcl_InputBuffered which returns the count
|
|
of bytes currently buffered in the input buffer of a channel, and o for
|
|
output only channels. (JL)
|
|
|
|
2/9/96 (new feature) Implemented asynchronous connect for sockets. (JL)
|
|
|
|
2/9/96 (new feature) Added C API Tcl_SetDefaultTranslation to set (per
|
|
channel) the default end of line translation mode. This is the mode that
|
|
will be installed if an output operation is done on the channel while it is
|
|
still in AUTO mode. (JL)
|
|
|
|
2/9/96 (bug fix) Changed Tcl_OpenCommandChannel interface to properly
|
|
handle all of the combinations of stdio inheritance in background
|
|
pipelines. See the Tcl_OpenFileChannel(3) man page for more
|
|
info. This change fixes the bug where exec of a background pipeline
|
|
was not getting passed the stdio handles properly. (SS)
|
|
|
|
2/9/96 (bug fix) Removed the new Tcl_CreatePipeline interface, and
|
|
restored the old version for Unix platforms only. All new code should
|
|
use Tcl_CreateCommandChannel instead. (SS)
|
|
|
|
2/9/96 (bug fix) Changed Makefile.in to use -L and -ltcl7.5 for Tcl
|
|
library so that shared libraries are more likely to be found correctly
|
|
on more platforms. (JO)
|
|
|
|
2/13/96 (new feature) Added C API Tcl_SetNotifierData and
|
|
Tcl_GetNotifierData to allow notifier and channel driver writers to
|
|
associate data with a Tcl_File. The result of this change is that
|
|
Tcl_GetFileInfo now always returns an OS file handle, and Tcl_GetFile
|
|
can be used to construct a Tcl_File for an externally constructed OS
|
|
handle. (SS)
|
|
|
|
2/13/96 (bug fix) Changed Windows socket implementation so it doesn't
|
|
set SO_REUSEADDR on server sockets. Now attempts to create a server
|
|
socket on a port that is already in use will be properly identified
|
|
and an error will be generated. (SS)
|
|
|
|
2/13/96 (bug fix) Fixed problems with DLL initialization under Visual
|
|
C++ that left the C run time library uninitialized. (SS)
|
|
|
|
2/13/96 (bug fix) Fixed Windows socket initialization so it loads
|
|
winsock the first time it is used, rather than at the time tcl75.dll
|
|
is loaded. This should fix the bug where the modem immediately starts
|
|
trying to connect to a service provider when wish or tclsh are
|
|
started. (SS)
|
|
|
|
2/13/96 (new feature) Added C APIs Tcl_MakeFileChannel and
|
|
Tcl_MakeTcpClientChannel to wrap up existing fds and sockets into
|
|
channels. Provided implementations on Unix and Windows. (JL)
|
|
|
|
2/13/96 (bug fix) Fixed bug with seek leaving EOF and BLOCKING set. (JL)
|
|
|
|
2/14/96 (bug fix) Fixed reentrancy problem in fileevent handling
|
|
and made it more robust in the face of errors. (JL)
|
|
|
|
2/14/96 (feature change) Made generic IO level emulate blocking mode if the
|
|
channel driver is unable to provide it, e.g. if the low level device is
|
|
always nonblocking. Thus, now blocking behavior is an advisory setting for
|
|
channel drivers and can be ignored safely if the channel driver is unable
|
|
to provide it. (JL)
|
|
|
|
2/15/96 (new feature) Added "binary" end of line translation mode, which is
|
|
a synonym of "lf" mode. (JL)
|
|
|
|
2/15/96 (bug fix) Fixed reentrancy problem in fileevent handling vs
|
|
deletion of channel event handlers. (JL)
|
|
|
|
2/15/96 (bug fix) Fixed bug in event handling which would cause a
|
|
nonblocking channel to not see further readable events after the first
|
|
readable event that had insufficient input. (JL)
|
|
|
|
2/17/96 (bug fix) "info complete" didn't properly handle comments
|
|
in nested commands. (JO)
|
|
|
|
2/21/96 (bug fix) "exec" under Windows NT/95 did not properly handle
|
|
very long command lines (>200 chars). (SS)
|
|
|
|
2/21/96 (bug fix) Sockets could get into an infinite loop if a read
|
|
event arrived after all of the available data had been read. (SS)
|
|
|
|
2/22/96 (bug fix) Added cast of st_size elements to (long) before
|
|
sprintf-ing in "file size" command. This is needed to handle systems
|
|
like NetBSD with 64-bit file offsets. (JO)
|
|
|
|
----------------- Released 7.5b2, 2/23/96 -----------------------
|
|
|
|
2/23/96 (bug fix) TCL_VARARGS macro in tcl.h wasn't defined properly
|
|
when compiling with C++. (JO)
|
|
|
|
2/24/96 (bug fix) Removed dependencies on Makefile in the UNIX Makefile:
|
|
this caused problems on some platforms (like Linux?). (JO)
|
|
|
|
2/24/96 (bug fix) Fixed configuration bug that made Tcl not compile
|
|
correctly on Linux machines with neither -ldl or -ldld. (JO)
|
|
|
|
2/24/96 (new feature) Added a block of comments and definitions to
|
|
Makefile.in to make it easier to have Tcl's TclSetEnv etc. replace
|
|
the library procedures setenv etc, so that calls to setenv etc. in
|
|
the application automatically update the Tcl "env" variable. (JO)
|
|
|
|
2/27/96 (feature change) Added optional Tcl_Interp * argument (may be NULL)
|
|
to C API Tcl_Close and simplified closing of command channels. (JL)
|
|
*** INCOMPATIBILITY with Tcl 7.5b2, but not with Tcl 7.4 ***
|
|
|
|
2/27/96 (feature change) Added optional Tcl_Interp * argument (may be NULL)
|
|
to C type definition Tcl_DriverCloseProc; modified all channel drivers to
|
|
implement close procedures that accept the additional argument. (JL)
|
|
*** INCOMPATIBILITY with Tcl 7.5b2, but not with Tcl 7.4 ***
|
|
|
|
2/28/96 (bug fix) Fixed memory leak that could occur if an upvar
|
|
referred to an element of an array in the same stack frame as the
|
|
upvar. (JO)
|
|
|
|
2/29/96 (feature change) Modified both Tcl_DoOneEvent and Tcl_WaitForEvent
|
|
so that they return immediately in cases where they would otherwise
|
|
block forever (e.g. if there are no event handlers of any sort). (JO)
|
|
|
|
2/29/96 (new feature) Added C APIs Tcl_GetChannelBufferSize and
|
|
Tcl_SetChannelBufferSize to set and retrieve the size, in bytes, for
|
|
buffers allocated to store input or output in a channel. (JL)
|
|
|
|
2/29/96 (new feature) Added option -buffersize to Tcl fconfigure command
|
|
to allow Tcl scripts to query and set the size of channel buffers. (JL)
|
|
|
|
2/29/96 (feature removed) Removed channel driver function to specify
|
|
the buffer size to use when allocating a buffer. Removed the C typedef
|
|
for Tcl_DriverBufferSizeProc. Channels are now created with a default
|
|
buffer size of 4K. (JL)
|
|
*** INCOMPATIBILITY with Tcl 7.5b2, but not with Tcl 7.4 ***
|
|
|
|
2/29/96 (feature change) The channel driver function for setting blocking
|
|
mode on the device may now be NULL. If the generic code detects that the
|
|
function is NULL, operations that set the blocking mode on the channel
|
|
simply succeed. (JL)
|
|
|
|
3/2/96 (bug fix) Fixed core dump that could occur if a syntax error
|
|
(such as missing close paren) occurred in an array reference with a
|
|
very long array name. (JO)
|
|
|
|
3/4/96 (bug fix) Removed code in the "auto_load" procedure that deletes
|
|
all existing auto-load information whenever the "auto_path" variable
|
|
is changed. Instead, new information adds to what was already there.
|
|
Otherwise, changing the "auto_path" variable causes all package-
|
|
related information to be lost. If you really want to get rid of
|
|
existing auto-load information, use auto_reset before setting auto_path. (JO)
|
|
|
|
3/5/96 (new feature) Added version suffix to shared library names so that
|
|
Tcl will compile under NetBSD and FreeBSD (I hope). (JO)
|
|
|
|
3/6/96 (bug fix) Cleaned up error messages in new I/O system to correspond
|
|
more closely to old I/O system. (JO)
|
|
|
|
3/6/96 (new feature) Added -myaddr and -myport options to the socket
|
|
command, removed -tcp and -- options. This lets clients and servers
|
|
choose a particular interface. Also changed the default server address
|
|
from the hostname to INADDR_ANY. The server accept callback now gets
|
|
passed the client's port as well as IP address. The C interfaces for
|
|
Tcl_OpenTcpClient and Tcl_OpenTcpServer have changed to support the
|
|
above changes. (BW)
|
|
*** POTENTIAL INCOMPATIBILITY with Tcl 7.5b2, but not with Tcl 7.4 ***
|
|
|
|
3/6/96 (changed feature) The library function auto_mkindex will now
|
|
default to using the pattern "*.tcl" if no pattern is given. (RJ)
|
|
|
|
3/6/96 (bug fix) The socket channel code for the Macintosh has been
|
|
rewritten to use native MacTcp. (RJ)
|
|
|
|
3/7/96 (new feature) Added Tcl_SetStdChannel and Tcl_GetStdChannel
|
|
interfaces to allow applications to explicitly set and get the global
|
|
standard channels. (SS)
|
|
|
|
3/7/96 (bug fix) Tcl did close not the file descriptors associated
|
|
with "stdout", etc. when the corresponding channels were closed. (SS)
|
|
|
|
3/7/96 (bug fix) Reworked shared library and dynamic loading stuff to
|
|
try to get it working under AIX. Added new @SHLIB_LD_LIBS@ autoconf
|
|
symbol as part of this. AIX probably doesn't work yet, but it should
|
|
be a lot closer. (JO)
|
|
|
|
3/7/96 (feature change) Added Tcl_ChannelProc typedef and changed the
|
|
signature of Tcl_CreateChannelHandler and Tcl_DeleteChannelHandler to take
|
|
Tcl_ChannelProc arguments instead of Tcl_FileProc arguments. This change
|
|
should not affect any code outside Tcl because the signatures of
|
|
Tcl_ChannelProc and Tcl_FileProc are compatible. (JL)
|
|
|
|
3/7/96 (API change) Modified signature of Tcl_GetChannelOption to return
|
|
an int instead of char *, and to take a Tcl_DString * argument. Modified
|
|
the implementation so that the option name can be NULL, to mean that the
|
|
call should retrieve a list of alternating option names and values. (JL)
|
|
*** INCOMPATIBILITY with Tcl 7.5b2, but not with Tcl 7.4 ***
|
|
|
|
3/7/96 (API change) Added Tcl_DriverSetOptionProc, Tcl_DriverGetOptionProc
|
|
typedefs, added two slots setOptionProc and getOptionProc to the channel
|
|
type structure. These may be NULL to indicate that the channel type does
|
|
not support any options. (JL)
|
|
*** INCOMPATIBILITY with Tcl 7.5b2, but not with Tcl 7.4 ***
|
|
|
|
3/7/96 (feature change) stdin, stdout and stderr can now be put into
|
|
nonblocking mode. (JL)
|
|
|
|
3/8/96 (feature change) Eliminated dependence on the registry for
|
|
finding the Tcl library files. (SS)
|
|
|
|
----------------- Released 7.5b3, 3/8/96 -----------------------
|
|
|
|
3/12/96 (feature improvement) Modified startup script to look in several
|
|
different places for the Tcl library directory. This should allow Tcl
|
|
to find the libraries under all but the weirdest conditions, even without
|
|
the TCL_LIBRARY environment variable being set. (JO)
|
|
|
|
3/13/96 (bug fix) Eliminated use of the "linger" option from the Windows
|
|
socket implementation. (JL)
|
|
|
|
3/13/96 (new feature) Added -peername and -sockname options for fconfigure
|
|
for socket channels. Code contributed by John Haxby of HP. (JL)
|
|
|
|
3/13/96 (bug fix) Fixed panic and core dump that would occur if the accept
|
|
callback script on a server socket encountered an error. (JL)
|
|
|
|
3/13/96 (feature change) Added -async option to the Tcl socket command.
|
|
If the command is creating a client socket and the flag is present, the
|
|
client is connected asynchronously. If the option is absent (the default),
|
|
the client socket is connected synchronously, and the command returns only
|
|
when the connection has been completed or failed. This change was suggested
|
|
by Mark Diekhans. (JL)
|
|
|
|
3/13/96 (feature change) Modified the signature of Tcl_OpenTcpClient to
|
|
take an additional int argument, async. If nonzero, the client is connected
|
|
to the server asynchronously. If the value is zero, the connection is made
|
|
synchronously, and the call to Tcl_OpenTcpClient returns only when the
|
|
connection fails or succeeds. This change was suggested by Mark Diekhans. (JL)
|
|
*** INCOMPATIBILITY with Tcl 7.5b3, but not with Tcl 7.4 ***
|
|
|
|
3/14/96 (bug fix) "tclsh bogus_file_name" didn't print an error message. (JO)
|
|
|
|
3/14/96 (bug fix) Added new procedures to tclCkalloc.c so that libraries
|
|
and applications can be compiled with TCL_MEM_DEBUG even if Tcl isn't
|
|
(however, the converse is still not true). Patches provided by Jan
|
|
Nijtmans. (JO)
|
|
|
|
3/15/96 (bug fix) Marked standard IO handles of a process as close-on-exec
|
|
to fix bug in Ultrix where exec was not sharing standard IO handles with
|
|
subprocesses. Fix suggested by Mark Diekhans. (JL)
|
|
|
|
3/15/96 (bug fix) Fixed asynchronous close mechanism so that it closes the
|
|
channel instead of leaking system resources. The manifestation was that Tcl
|
|
would eventually run out of file descriptors if it was handling a large
|
|
number of nonblocking sockets or pipes with high congestion. (JL)
|
|
|
|
3/15/96 (bug fix) Fixed tests so that they no longer leak file descriptors.
|
|
The manifestation was that Tcl would eventually run out of file descriptors
|
|
if the tests were rerun many times (> a hundred times on Solaris). (JL)
|
|
|
|
3/15/96 (bug fix) Fixed channel creation code so that it never creates
|
|
unnamed channels. This would cause a panic and core dump when the channel
|
|
was closed. (JL)
|
|
|
|
3/16/96 (bug fixes) Made lots of changes in configuration stuff to get
|
|
Tcl working under AIX (finally). Tcl should now support the "load"
|
|
command under AIX and should work either with or without shared
|
|
libraries for Tcl and Tk. (JO)
|
|
|
|
3/21/96 (configuration improvement) Changed configure script so it
|
|
doesn't use version numbers (as in -ltcl7.5 and libtcl7.5.so) under
|
|
SunOS 4.1, where they don't work anyway. (JO)
|
|
|
|
3/22/96 (new feature) Added C API Tcl_InterpDeleted that allows extension
|
|
writers to discover when an interpreter is being deleted. (JL)
|
|
|
|
3/22/96 (bug fix) The standard IO channels are now added to each
|
|
trusted interpreter as soon as the interpreter is created. This ensures
|
|
against the bug where a child would do IO before the master had done any,
|
|
and then the child is destroyed - the standard IO channels would be then
|
|
closed and the master would be unable to do any IO. (JL)
|
|
|
|
3/22/96 (bug fix) Made Tcl more robust against interpreter deletion, by
|
|
using Tcl_Preserve, Tcl_Release and Tcl_EventuallyFree to split the process
|
|
of interpreter deletion into two distinct phases. Also went through all of
|
|
Tcl and added calls to Tcl_Preserve and Tcl_Delete where needed. (JL)
|
|
|
|
3/22/96 (bug fix) Fixed several places where C code was reading and writing
|
|
into freed memory, especially during interpreter deletion. (JL)
|
|
|
|
3/22/96 (bug fix) Fixed very deep bug in Tcl_Release that caused memory to
|
|
be freed twice if the release callback did Tcl_Preserve and Tcl_Release on
|
|
the same memory as the chunk currently being freed. (JL)
|
|
|
|
3/22/96 (bug fix) Removed several memory leaks that would cause memory
|
|
buildup on half-K chunks in the generic IO level. (JL)
|
|
|
|
3/22/96 (bug fix) Fixed several core dumps which occurred when new
|
|
AssocData was being created during the cleanups in interpreter deletion.
|
|
The solution implemented now is to loop repeatedly over the AssocData until
|
|
none is left to clean up. (JL)
|
|
|
|
3/22/96 (bug fix) Fixed a bug in event handling which caused an infinite
|
|
loop if there were no files being watched and no timer. Fix suggested by
|
|
Jan Nijtmans. (JL)
|
|
|
|
3/22/96 (bug fix) Fixed Tcl_CreateCommand, Tcl_DeleteCommand to be more
|
|
robust if the interpreter is being deleted. Also fixed several order
|
|
dependency bugs in Tcl_DeleteCommand which kicked in when an interpreter
|
|
was being deleted. (JL)
|
|
|
|
3/26/96 (bug fix) Upon a "short read", the generic code no longer calls
|
|
the driver for more input. Doing this caused blocking on some platforms
|
|
even on nonblocking channels. Bug and fix courtesy Mark Roseman. (JL)
|
|
|
|
3/26/96 (new feature) Added 'package Tcltest' which is present only in
|
|
test versions of Tcl; this allows the testing commands to be loaded into
|
|
new interpreters besides the main one. (JL)
|
|
|
|
3/26/96 (restored feature) Recreated the Tcl_GetOpenFile C API. You can
|
|
now get a FILE * from a registered channel; Unix only. (JL)
|
|
|
|
3/27/96 (bug fix) The regular expression code did not support more
|
|
than 9 subexpressions. It now supports up to 20. (SS)
|
|
|
|
4/1/96 (bug fixes) The CHANNEL_BLOCKED bit was being left on on a short
|
|
read, so that fileevents wouldn't fire correctly. Bug reported by Mark
|
|
Roseman.(JL, RJ)
|
|
|
|
4/1/96 (bug fix) Moved Tcl_Release to match Tcl_Preserve exactly, in
|
|
tclInterp.c; previously interpreters were being freed only conditionally
|
|
and sometimes not at all. (JL)
|
|
|
|
4/1/96 (bug fix) Fixed error reporting in slave interpreters when the
|
|
error message was being generated directly by C code. Fix suggested by
|
|
Viktor Dukhovni of ESM. (JL)
|
|
|
|
4/2/96 (bug fixes) Fixed a series of bugs in Windows sockets that caused
|
|
events to variously get lost, to get sent multiple times, or to be ignored
|
|
by the driver. The manifestation was blocking if the channel is blocking,
|
|
and either getting EAGAIN or infinite loops if the channel is nonblocking.
|
|
This series of bugs was found by Ian Wallis of Cisco. Now all tests (also
|
|
those that were previously commented out) in socket.test pass. (JL, SS)
|
|
|
|
4/2/96 (feature change/bug fix) Eliminated network name support in
|
|
favor of better native name support. Added "file split", "file join",
|
|
and "file pathtype" commands. See the "file" man page for more
|
|
details. (SS)
|
|
*** INCOMPATIBILITY with Tcl 7.5b3, but not with Tcl 7.4 ***
|
|
|
|
4/2/96 (bug fix) Changed implementation of auto_mkindex so tclIndex
|
|
files will properly handle path names in a cross platform context. (SS)
|
|
|
|
4/5/96 (bug fix) Fixed Tcl_ReadCmd to use the channel buffer size as the
|
|
chunk size it reads, instead of a fixed 4K size. Thus, on large reads, the
|
|
user can set the channel buffer size to a large size and the read will
|
|
occur orders of magnitude faster. For example, on a 2MB file, reading in 4K
|
|
chunks took 34 seconds, while reading in 1MB chunks took 1.5 seconds (on a
|
|
SS-20). Problem identified and fix suggested by John Haxby of HP. (JL)
|
|
|
|
4/5/96 (bug fix) Fixed socket creation code to invoke gethostbyname only if
|
|
inet_addr failed (very unlikely). Before this change the order was reversed
|
|
and this made things much slower than they needed to be (gethostbyname
|
|
generally requires an RPC, which is slow). Problem identified and fix
|
|
suggested by John Loverso of OSF. (JL)
|
|
|
|
4/9/96 (feature change) Modified "auto" translation mode so that it
|
|
recognizes any of "\n", "\r" and "\r\n" in input as end of line, so
|
|
that a file can have mixed end-of-line sequences. It now outputs
|
|
the platform specific end of line sequence on each platform for files and
|
|
pipes, and for sockets it produces crlf in output on all platforms. (JL)
|
|
*** INCOMPATIBILITY with Tcl 7.5b3, but not with Tcl 7.4 ***
|
|
|
|
4/11/96 (new feature) Added -eofchar option to Tcl_SetChannelOption to allow
|
|
setting of an end of file character for input and output. If an input eof
|
|
char is set, it is recognized as EOF and further input from the channel is
|
|
not presented to the caller. If an output eof char is set, on output, that
|
|
byte is appended to the channel when it is closed. On Unix and Macintosh,
|
|
all channels start with no eof char set for input or output. On Windows,
|
|
files and pipes start with input and output eof chars set to Crlt-Z (ascii
|
|
26), and sockets start with no input or output eof char. (JL)
|
|
*** INCOMPATIBILITY with Tcl 7.5b3, but not with Tcl 7.4 ***
|
|
|
|
4/17/96 (bug fix) Fixed series of bugs with handling of crlf sequence split
|
|
across buffer boundaries in input, in AUTO mode. (JL, BW)
|
|
|
|
4/17/96 (test suite improvement) Fixed test suite so that tests that
|
|
depend on the availability of Unix commands such as echo, cat and others
|
|
are not run if these commands are not present. (JL)
|
|
|
|
4/17/96 (test suite improvement) The socket test now automatically starts,
|
|
on platformst that support exec, a separate process for remote testsing. (JL)
|
|
|
|
----------------- Released 7.5, 4/21/96 -----------------------
|
|
|
|
5/1/96 (bug fix) "file tail ~" did not correctly return the tail
|
|
portion of the user's home directory. (SS)
|
|
|
|
5/1/96 (bug fix) Fixed bug in TclGetEnv where it didn't lookup environment
|
|
variables correctly: could confuse "H" and "HOME", for example. (JO)
|
|
|
|
5/1/96 (bug fix) Changed to install tclConfig.sh under "make install-binaries",
|
|
not "make install-libraries". (JO)
|
|
|
|
5/2/96 (bug fix) Changed pkg_mkIndex not to attempt to "load" a file unless
|
|
it has the standard shared library extension. On SunOS, attempts to load
|
|
Tcl scripts cause the whole application to be aborted (there's no way to
|
|
get the error back into Tcl). (JO)
|
|
|
|
5/7/96 (bug fix) Moved initScript in tclUnixInit.c to writable memory to
|
|
avoid potential core dumps. (JO)
|
|
|
|
5/7/96 (bug fix) Auto_reset procedure was removing procedure from init.tcl,
|
|
such as pkg_mkIndex. (JO)
|
|
|
|
5/7/96 (bug fix) Fixed cast on socket address resolution code that
|
|
would cause a failure to connect on Dec Alphas. (JL)
|
|
|
|
5/7/96 (bug fix) Added "time", "subst" and "fileevent" commands to set of
|
|
commands available in a safe interpreter. (JL)
|
|
|
|
5/13/96 (bug fix) Preventing OS level handles for stdin, stdout and stderr
|
|
from being implicitly closed when the last reference to the standard
|
|
channel containing that handle is discarded when an interpreter is deleted.
|
|
Explicitly closing standard channels by using "close" still works. (JL)
|
|
|
|
5/21/96 (bug fix) Do not create channels for stdin, stdout and stderr on
|
|
Unix if the devices are closed. This prevents a duplicate channel name
|
|
panic later on when the fd is used to open a channel and the channel is
|
|
registered in an interpreter. (JL)
|
|
|
|
5/23/96 (bug fix) Fixed bug that prevented the use of standard channels in
|
|
interpreters created after the last interpreter was destroyed. In the sequence
|
|
|
|
interp = Tcl_CreateInterp();
|
|
Tcl_DeleteInterp(interp);
|
|
interp = Tcl_CreateInterp();
|
|
|
|
channels for stdio would not be available in the second interpreter. (JL)
|
|
|
|
5/23/96 (bug fix) Fixed bug that allowed Tcl_MakeFileChannel to create new
|
|
channels with Tcl_Files in them that are already used by another channel.
|
|
This would cause core dumps when the Tcl_Files were being freed twice. (JL)
|
|
|
|
5/23/96 (bug fix) Fixed a logical timing bug that caused a standard channel
|
|
to be removed from the standard channel table too early when the channel
|
|
was being closed. If the channel was being flushed asynchronously, it could
|
|
get recreated before being actually destroyed, and the recreated channel
|
|
would contain the same Tcl_File as the one being closed, leading to
|
|
dangling pointers and core dumps. (JL)
|
|
|
|
5/27/96 (bug fix) Fixed a bug in Tcl_GetChannelOption which caused it to
|
|
always return a list of one element, a list of the settings, for
|
|
-translation and -eofchar options. Now correctly returns the value
|
|
described by the documentation (Mark Diekhans found this, thanks!). (JL)
|
|
|
|
5/30/96 (bug fix) Fixed a couple of syntax errors in io.test. (JL)
|
|
|
|
5/30/96 (bug fix) If a fileevent scripts gets an error, delete it before
|
|
causing a background error. This is to allow the error handler to reinstall
|
|
the fileevent and to prevent infinite loops if the event loop is reentered
|
|
in the error handler. (JL)
|
|
|
|
5/31/96 (bug fix) Channels now will get properly flushed on exit. (JL)
|
|
|
|
6/5/96 (bug fix) Changed Tcl_Ckalloc, Tcl_Ckfree, and Tcl_Ckrealloc to
|
|
Tcl_Alloc, Tcl_Free, and Tcl_Realloc. Added documentation for these
|
|
routines now that they are officially supported. Extension writers
|
|
should use these routines instead of free() and malloc(). (SS)
|
|
|
|
6/10/96 (bug fix) Changes the Tcl close command so that it no longer
|
|
waits on nonblocking pipes for the piped processes to exit; instead it
|
|
reaps them in the background. (JL)
|
|
|
|
6/11/96 (bug fix) Increased the length of the listen queue for server
|
|
sockets on Unix from 5 to 100. Some OSes will disregard this and reset it
|
|
to 5, but we should try to get as long a queue as we can, for performance
|
|
reasons. (JL)
|
|
|
|
6/11/96 (bug fix) Fixed windows sockets bug that caused a cascade of events
|
|
if the fileevent script read less than was available. Now reading less than
|
|
is available does not cause a flood of Tcl events. (JL, SS)
|
|
|
|
6/11/96 (bug fix) Fixed bug in background flushing on closed channels that
|
|
would prevent the last buffer from getting flushed. (JL)
|
|
|
|
6/13/96 (bug fix) Fixed bug in Windows sockets that caused a core dump if
|
|
a DLL linked with tcl.dll and referred to e.g. ntohs() without opening a
|
|
Tcl socket. The problem was that the indirection table was not being
|
|
initialized. (JL)
|
|
|
|
6/13/96 (bug fix) Fixed OS level resource leak that would occur when a
|
|
Tcl channel was still registered in some interpreter when the process
|
|
exits. Previously the channel was not being closed and the OS level handles
|
|
were not being released; the output was being flushed but the device was
|
|
not being closed. Now the device is properly closed. This was only a
|
|
problem on Win3.1 and MacOS. (JL, SS)
|
|
|
|
6/28/96 (bug fix) Fixed bug where transient errors were leaving an error
|
|
code around, so that it would erroneously get reported later. This bug was
|
|
exercised intermittently by closing a channel to a file on a very loaded
|
|
NFS server, or to a socket whose other end blocked. (JL, BW)
|
|
|
|
7/3/96 (bug fix) Fileevents declared in an interpreter are now deleted
|
|
when the channel is closed in that interpreter. Before this fix, the
|
|
fileevent would hang around until the channel is completely closed, and
|
|
would cause errors if events happened before the channel was closed. This
|
|
could happen in two cases: first if the channel is shared between several
|
|
interpreters, and second if an async flush is in progress that prevents the
|
|
channel from being closed until the flush finishes. (JL)
|
|
|
|
7/10/96 (bug fix) Fixed bugs in both "lrange" and "lreplace" commands
|
|
where too much white space was being removed. For example, the command
|
|
lreplace {\}\ hello} end end
|
|
was returning "\}\", losing the significant space in the first list
|
|
element and corrupting the list. (JO)
|
|
|
|
7/20/96 (bug fix) The procedure pkg_mkIndex didn't work properly for
|
|
extensions that depend on Tk, because it didn't load Tk into the child
|
|
interpreter before loading the extension. Now it loads Tk if Tk is
|
|
present in the parent. (JO)
|
|
|
|
7/23/96 (bug fix) Added compat version of strftime to fix crashes
|
|
resulting from bad implementations under Windows. (SS)
|
|
|
|
7/23/96 (bug fix) Standard implementations of gmtime() and localtime()
|
|
under Windows did not handle dates before 1970, so they were replaced
|
|
with a revised implementation. (SS)
|
|
|
|
7/23/96 (bug fix) Tcl would crash on exit under Borland 5.0 because
|
|
the global environ pointer was left pointing to freed memory. (SS)
|
|
|
|
7/29/96 (bug fix) Fixed memory leak in Tcl_LoadCmd that could occur if
|
|
a package's AppInit procedure called Tcl_StaticPackage to register
|
|
static packages. (JO)
|
|
|
|
8/1/96 (bug fix) Fixed a series of bugs in Windows sockets so that async
|
|
writebehind in the presence of read event handlers now works, and so that
|
|
async writebehind also works on sockets for which a read event handler was
|
|
declared and whose channels were then closed before the async write
|
|
finished. The bug was reported by John Loverso and Steven Wahl,
|
|
independently, test case supplied by John Loverso. (JL)
|
|
|
|
----------------- Released patch 7.5p1, 8/2/96 -----------------------
|
|
|
|
5/8/96 (API changes) Revised C APIs for channel drivers:
|
|
- Removed all Tcl_Files from channel driver interface; you can now have
|
|
channels that are not based on Tcl_Files.
|
|
- Added channelReadyProc and watchChannelProc procedures to interface;
|
|
these are used to implement event notification for channels.
|
|
- Added getFileProc to channel driver, to allow the generic IO code
|
|
to retrieve a Tcl_File from a channel (presumably if the channel
|
|
uses Tcl_Files they will be stored inside its instanceData). (JL)
|
|
*** INCOMPATIBILITY with Tcl 7.5 ***
|
|
|
|
5/8/96 (API change) The Tcl_CreateChannel C API was modified to not take
|
|
Tcl_File arguments, and instead to take a mask specifying whether the
|
|
channel is readable and/or writable. (JL)
|
|
*** INCOMPATIBILITY with Tcl 7.5 ***
|
|
|
|
5/8/96 (new feature) Added Tcl_Ungets C API for putting a sequence of bytes
|
|
into a channel's input buffer. This can be used for "push" model channels
|
|
where the input is obtained via callbacks instead of by request of the
|
|
generic IO code. (JL)
|
|
|
|
5/8/96 (new feature) Added Tcl_GetChannelMode C API for retrieving whether
|
|
a channel is open for reading and writing. (JL)
|
|
|
|
6/3/96 (bug fix) Made Tcl_SetVar2 robust against the case where the value
|
|
of the variable is a NULL pointer instead of "". (JL)
|
|
|
|
6/17/96 (bug fix) Fixed "reading uninitialized memory" error reported by
|
|
Purify, in Tcl_Preserve/Tcl_Release. (JL)
|
|
|
|
8/9/96 (bug fix) Fixed bug in init.tcl that caused incorrect error message
|
|
if the act of autoloading a procedure caused the procedure to be invoked
|
|
again. (JO)
|
|
|
|
8/9/96 (bug fix) Configure script produced bad library names and extensions
|
|
under SunOS and a few other platforms if the --disable-load switch was used.
|
|
(JO)
|
|
|
|
8/9/96 (bug fix) Tcl_UpdateLinkedVar generated an error if the variable
|
|
being updated was read-only. (JO)
|
|
|
|
8/14/96 (bug fix) The macintosh now supports synchronous socket
|
|
connections. Other minor bugs were also fixed. (RJ)
|
|
|
|
8/15/96 (configuration improvement) Changed the file patchlevel.h
|
|
to be tclPatch.h. This avoids conflict with the Tk file and is now
|
|
in 8.3 format on the Windows platform. (RJ)
|
|
|
|
8/20/96 (bug fix) Fixed core dump in interp alias command for interpreters
|
|
created with Tcl_CreateInterp (as opposed to with Tcl_CreateSlave). (JL)
|
|
|
|
8/20/96 (bug fix) No longer masking ECONNRESET on Windows sockets so
|
|
that the higher level of the IO mechanism sees the error instead of
|
|
entering an infinite loop. (JL)
|
|
|
|
8/20/96 (bug fix) Destroying the last interpreter no longer closes the
|
|
standard channels. (JL)
|
|
|
|
8/20/96 (bug fix) Closing one of the stdin, stdout or stderr channels and
|
|
then opening a new channel now correctly assigns the new channel as the
|
|
standard channel that was closed. (JL)
|
|
|
|
8/20/96 (bug fix) Added code to unix/tclUnixChan.c for using ioctl with
|
|
FIONBIO instead of fcntl with O_NONBLOCK, for those versions of Unix where
|
|
either O_NONBLOCK is not supported or implemented incorrectly. (JL)
|
|
|
|
8/21/96 (bug fix) Fixed "file extension" so it correctly returns the
|
|
extension on files like "foo..c" as "..c" instead of ".c". (SS)
|
|
|
|
8/22/96 (bug fix) If environ[] contains static strings, Tcl would core
|
|
dump in TclSetupEnv because it was trying to write NULLs into the actual
|
|
data in environ[]. Now we instead copy as appropriate. (JL)
|
|
|
|
8/22/96 (added impl) Added missing implementation of Tcl_MakeTcpClientChannel
|
|
for Windows platform. Code contributed by Mark Diekhans. (JL)
|
|
|
|
8/22/96 (new feature) Added a new memory allocator for the Macintosh
|
|
version of Tcl. It's quite a bit faster than MetroWerk's version. (RJ)
|
|
|
|
8/26/96 (documentation update) Removed old change bars (for all changes
|
|
in Tcl 7.5 and earlier releases) from manual entries. (JO)
|
|
|
|
8/27/96 (enhancement) The exec and open commands behave better and work in
|
|
more situations under Windows NT and Windows 95. Documentation describes
|
|
what is still lacking. (CS)
|
|
|
|
8/27/96 (enhancement) The Windows makefiles will now compile even if the
|
|
compiler is not in the path and/or the compiler's environment variables
|
|
have not been set up. (CS)
|
|
|
|
8/27/96 (configuration improvement) The Windows resource files are
|
|
automatically updated when the version/patch level changes. The header file
|
|
now has a comment that reminds the user which other files must be manually
|
|
updated when the version/patch level changes. (CS)
|
|
|
|
8/28/96 (new feature) Added file manipulation features (copy, rename, delete,
|
|
mkdir) that are supported on all platforms. They are implemented as
|
|
subcommands to the "file" command. See the documentation for the "file"
|
|
command for more information. (JH)
|
|
|
|
----------------- Released 7.6b1, 8/30/96 -----------------------
|
|
|
|
9/3/96 (bug fix) Simplified code so that standard channels are created
|
|
lazily, they are added to an interpreter lazily, and they are never added
|
|
to a safe interpreter. (JL)
|
|
|
|
9/3/96 (bug fix) Closing a channel after closing a standard channel, e.g.
|
|
stdout, would cause the implicit recreation of that standard channel. (JL)
|
|
|
|
9/3/96 (new feature) Now calling Tcl_RegisterChannel with a NULL
|
|
interpreter increments the refcount so that code outside any interpreter
|
|
can use channels that are also registered in interpreters, without worrying
|
|
that the channel may turn into a dangling pointer at any time. Calling
|
|
Tcl_UnregisterChannel with a NULL interpreter only decrements the recount
|
|
so that code outside any interpreter can safely declare it is no longer
|
|
interested in a channel. (JL)
|
|
|
|
9/4/96 (new features) Two changes to dynamic loading:
|
|
- If the file name is empty in the "load" command and there is no
|
|
statically loaded version of the package, a dynamically loaded
|
|
version will be used if there is one.
|
|
- Tcl_StaticPackage ignores redundant calls for the same package. (JO)
|
|
|
|
9/6/96 (bug fix) Platform specific procedures for manipulating files are
|
|
no longer macros and have been prefixed with "Tclp", such as TclpRenameFile.
|
|
Unix file code now handles symbolic links and other special files correctly.
|
|
The semantics of file copy and file rename has been changed so that if
|
|
a target directory exists, the source files will NOT be merged with the
|
|
existing files. (JH)
|
|
|
|
9/6/96 (bug fix) If standard channel is NULL, because Tcl cannot connect
|
|
to the standard channel, do not increment the refcount. The channel can
|
|
be NULL if there is for example no standard input. (JL)
|
|
|
|
9/6/96 (portability improvement) Changed parsing of backslash sequences
|
|
like \n to translate directly to absolute values like 0xa instead of
|
|
letting the compiler do the translation. This guarantees that the
|
|
translation is done the same everywhere. (JO)
|
|
|
|
9/9/96 (bug fix) If channel is opened and not associated with any
|
|
interpreter, but Tcl decides to use it as one of the standard channels, it
|
|
became impossible to close the channel with Tcl_Close -- instead you had
|
|
to call Tcl_UnregisterChannel. Fixed now so that it's safe to call
|
|
Tcl_Close even when Tcl is using the channel as one of the standard ones. (JL)
|
|
|
|
9/11/96 (feature change) The Tcl library is now placed in the Tcl
|
|
shared libraries resource. You no longer need to place the Tcl files
|
|
in your applications explicitly. (RJ)
|
|
|
|
9/11/96 (feature change) Extensions no longer automatically have the
|
|
resource fork of the extension opened for it. Instead you need to
|
|
use the tclMacLibrary.c file in your extension. (RJ)
|
|
*** POTENTIAL INCOMPATIBILITY ***
|
|
|
|
9/12/96 (bug fix) The extension loading mechanism on the Macintosh now
|
|
looks at the 'cfrg' resource to determine where to load the code
|
|
fragment from. This means FAT fragments should now work. (RJ)
|
|
|
|
9/18/96 (enhancement) The exec and open commands behave better and work in
|
|
more situations under Windows 3.X. Documentation describes what is still
|
|
lacking. (CS)
|
|
|
|
9/19/96 (bug fix) Fixed a panic which would occur if you delete a
|
|
non-existent alias before any aliases are created. Now instead correctly
|
|
returns an error that the alias is not found. (JL)
|
|
|
|
9/19/96 (bug fix) Slave interpreters could rename aliases and they would
|
|
not get deleted when the alias was being redefined. This led to dangling
|
|
pointers etc. (JL)
|
|
|
|
9/19/96 (bug fix) Fixed a panic where a hash table entry was being deleted
|
|
twice during alias management operations. (JL)
|
|
|
|
9/19/96 (bug fix) Fixed bug in event loop that could cause the input focus
|
|
in Tk to get confused during menu traversal, among other problems. The
|
|
problem was related to handling of the "marker" when its event was
|
|
deleted. (JO)
|
|
|
|
9/26/96 (bug fix) Windows was losing EOF on a socket if the FD_CLOSE event
|
|
happened to precede any left over FD_READ events. Now correctly remembers
|
|
seeing FD_CLOSE, so that trailing FD_READ events are not discarded if they
|
|
do not contain any data. This allows Tcl to correctly get a zero read and
|
|
notice EOF. (JL)
|
|
|
|
9/26/96 (bug fix) Was not resetting READABLE state properly on sockets
|
|
under Windows if the driver discarded an FD_READ event because no data was
|
|
present. Now correctly resets the state. (JL)
|
|
|
|
9/30/96 (bug fix) Made EOF sticky on Windows sockets, so that fileevent
|
|
readable will fire repeatedly until the socket is closed. Previously the
|
|
fileevent fired only once. This could lead to never-closed connections if
|
|
the Tcl script in the fileevent wasn't closing the socket immediately. (JL)
|
|
|
|
10/2/96 (new feature) Improved the package loader:
|
|
- Added new variable tcl_pkgPath, which holds the default
|
|
directories under which packages are normally installed (each
|
|
package goes in a separate subdirectory of a directory in
|
|
$tcl_pkgPath). These directories are included in auto_path by
|
|
default.
|
|
- Changed the package auto-loader to look for pkgIndex.tcl files
|
|
not only in the auto_path directories but also in their immediate
|
|
children. This should make it easier to install and uninstall
|
|
packages (don't have to change auto_path or merge pkgIndex.tcl
|
|
files). (JO)
|
|
|
|
10/3/96 (bug fix) Changed tclsh to look for tclshrc.tcl instead of
|
|
tclsh.rc on startup under Windows. This is more consistent with wish and
|
|
uses the right extension. (SS)
|
|
*** POTENTIAL INCOMPATIBILITY ***
|
|
|
|
10/8/96 (bug fix) Convertclock does not parse 24-hour times of the
|
|
form "hhmm" correctly when hour = 00. In the parse code, hour must be
|
|
>= 100 for minutes to be non-zero. Thanks to Lint LaCour for this
|
|
bug fix. (RJ)
|
|
|
|
10/11/96 (bug fix) Under Windows, the pid command returned the process
|
|
handle instead of the process id. (SS)
|
|
|
|
----------------- Released 7.6, 10/16/96 -----------------------
|