Improve the way we handle the various parsing "states". Until now

[pspp-builds.git] / src / language / ChangeLog

diff --git a/src/language/ChangeLog b/src/language/ChangeLog
index ce8805cd38ae9b14a0a9103dbdf292989c570350..48aecc940d4a709f82a6db3d12f8de71672b5968 100644 (file)
--- a/src/language/ChangeLog
+++ b/src/language/ChangeLog
@@ -1,3 +1,58 @@
+Wed Apr 26 13:06:42 2006  Ben Pfaff  <blp@gnu.org>
+
+       Work on readline completion.
+
+       * command.c: (pspp_completion_function) Removed.
+       (pspp_attempted_completion_function) New function.
+       (command_generator) New function.
+
+Wed Apr 26 13:04:48 2006  Ben Pfaff  <blp@gnu.org>
+
+       Improve the way we handle the various parsing "states".  Until now
+       we've hard-coded the state transitions in the command definition
+       file, but that's error-prone and, worse, it's redundant--we can
+       figure out what state we're in anyhow.  We can cleanly handle
+       INPUT PROGRAM and FILE TYPE with a nested command-processing loop.
+       
+       * command.c: (cmd_result_is_success) New function.
+       (cmd_result_is_failure) New function.
+       (enum states) New enum.
+       (enum flags) New enum.
+       (struct command) Add states, flags members.  Remove transition,
+       skip_entire_name, debug members.  Renamed func member as function.
+       (macro DEFCMD) Removed.
+       (macro DBGCMD) Removed.
+       (macro SPCCMD) Removed.
+       (macro UNIMPL) Removed.
+       (macro DEF_CMD) New.
+       (macro UNIMPL_CMD) New.
+       (macro COMMAND_CNT) Changed to static const var, renamed
+       command_cnt.  Updated all references.
+       (FILE_TYPE_okay) Removed.
+       (cmd_parse) Rewrote in terms of do_parse_command().
+       (do_parse_command) New function.
+       (find_command) New function.
+       (unknown_command_error) Use struct string to simplify code.
+       (parse_command_name) Recognize comment command names.  Handle
+       flags.  Don't reject testing-mode-only commands here--let higher
+       level do it.
+       (verify_valid_command) New function.
+       (cmd_comment) New function.
+
+       * command.def: Completely rewritten and now sensibly organized.
+
+       * command.h: (enum STATE_*) Renamed CMD_STATE_*.
+       (CMD_*) Now "enum cmd_result".  Added CMD_QUIT.  New
+       CMD_END_SUBLOOP.  Removed CMD_TRAILING_GARBAGE, CMD_PART_SUCCESS,
+       CMD_PART_SUCCESS_MAYBE and replaced all references by CMD_FAILURE.
+       Added CMD_NOT_IMPLEMENTED.
+        (macro DEFCMD) Removed.
+       (macro DBGCMD) Removed.
+       (macro SPCCMD) Removed.
+       (macro UNIMPL) Removed.
+       (macro DEF_CMD) New.
+       (macro UNIMPL_CMD) New.
+
 Mon Apr  3 11:03:36 2006  Ben Pfaff  <blp@gnu.org>
 
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