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* Big round of changes to switch the code base to use the streamKaz Kylheku2009-11-161-202/+289
| | | | | | | | | | | | | | | | | abstraction instead of directly using C standard I/O, to eliminate most uses of C formatted I/O, and fix numerous bugs, such variadic argument lists which lack a terminating ``nao'' sentinel. Bug 28033 is addressed by this patch, since streams no longer provide printf-compatible formatting. The native formatter is extended with some additional capabilities to take over. The work on literal objects is expanded and they are now used throughout the code base. Fixed bad realloc in string output stream: reallocating by number of wide chars rather than bytes.
* Version 021 preparation.txr-021Kaz Kylheku2009-11-151-2/+2
| | | | Bumped version numbers, and cleaned up trailing whitespace from some files.
* Provide both char * and unsigned char * interfaces in UTF-8 module.Kaz Kylheku2009-11-141-1/+1
| | | | Fix unsigned and plan char * mixing.
* Fixes for bug 28086. When constructing a cobj, whose associatedKaz Kylheku2009-11-141-4/+8
| | | | | | | | | | | | | | | | | C structure contains obj_t * references, we should initialize that C structure after allocating the cobj. If we initialize the structure first, it may end up having the /only/ references to the objects. In that case, the objects are invisible to the garbage collector. The subsquent allocation of the cobj itself then may invoke gc which will turn these objects into dust. The result is a cobj which contains a handle structure that contains references to free objects. The fix is to allocate the handle structure, then the cobj which is associated with that handle, and then initialize the handle, at which point it is okay if the handle has the only references to some objects. Care must be taken not to let a cobj escape with a partially initialized handle structure, and not to trigger gc between allocating the cobj, and initializing the fields.
* Previous commit broke UTF-8 lexing, by changing the get_charKaz Kylheku2009-11-131-0/+72
| | | | | | | | semantics on the input stream to wide character input. Also, reading a query the command line (-c) must read bytes from a UTF-8 encoding of the string. We introduce a new get_byte function which can extract bytes from streams which provide it.
* Continuing wchar_t conversion. Making sure all stdio callsKaz Kylheku2009-11-121-26/+15
| | | | | use wide character functions so that there is no illicit mixing. (But the goal is to replace this usage with txr streams).
* Documenting extended characters in man page.Kaz Kylheku2009-11-121-13/+47
| | | | Cleaned up some more issues related to extended characters.
* Big conversion to wide characters and UTF-8 support.Kaz Kylheku2009-11-111-57/+71
| | | | | | | | | This is incomplete. There are too many dependencies on wide character support from the C stream I/O library, and implicit use of some encoding which may not be UTF-8. The regex code does not handle wide characters properly. Character type is still int in some places, rather than wchar_t. Test suite passes though.
* Throw exception on stream error during close, or I/O operations. ThisKaz Kylheku2009-11-061-47/+129
| | | | | | is needed for pipes that terminate abnormally or return failed termination. Pipe and stdio streams have an extra description field so they are printed in a readable way.
* Bug ID 27895: Calls to protect have an argument list terminatedKaz Kylheku2009-11-011-1/+1
| | | | by the integer constant 0 rather than a proper null pointer constant.
* Version 019txr-019Kaz Kylheku2009-11-031-6/+6
| | | | | | Regexps can be bound to variables. New freeform directive.
* Start of implementation for freestyle matching.Kaz Kylheku2009-11-021-3/+3
| | | | | | | | | | | Lazy strings implemented, incompletely. Changed string function to implicitly strdup; non-strdup version changed to string_own. Fixed wrong uses of strdup rather than chk_strdup. Functions added to regex module to provide regex matching as a state machine to which characters are fed.
* txr-015 2009-10-15txr-015Kaz Kylheku2017-07-311-0/+641