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This is a major update for CWEB 4.9 from May 2023. The base package
received fixes, internal changes, and significant revisions:
Fixes:
* Fix issue #43: 'out_buf' overflow on malign user input
- Handle border case from bug report
- Discard rest of input lines exceeding 'buf_size' characters
- Purge 'ungetc' from the TeX part as well
* Fix typo in 'examples/wordtest.w' (reported by DEK)
* 'Ilk' is of type 'eight_bits'
* Avoid over-/underflow of section depth with malicious user input
Internal changes:
* Unroll 'init_p' helper function in COMMON
- it is used for CWEAVE only (and CTWILL downstream)
* Match 'common.w' and 'common.h'
- Reshuffle declarations and some code sections
- Add starred section titles
* Demote all starred sections in 'common.w' (single star)
* Code cleanup
- Make 'pop_level' a simple macro in CWEAVE
- Use structure assignment (as in CTANGLE)
- More compact 'stack' handling
- Make use of type 'mode'
- Purge a few 'goto' statements (and add some others)
- Replace some 'sprintf' with 'snprintf'
- Syntactic sugar for functional macros
- Straighten 'byte_start' arithmetic
- Desolve former section 19 of CWEAVE with internal array sizes
- Hide 'print_text' analytics function from C compiler with DEBUG
- Streamline 'phase_two' of CTANGLE
- Refurbish 'phase_three' of CWEAVE
* Insert blank line after '\ch' in TeX output (cf. CWEB 3.0)
Macro changes
* Cleanup some '\acro' macros in 'cwebmac.tex'
Also the CWEBbin package received updates and amendments:
Preparation:
* Fix a bug in 'twinxmac.tex' (3rd patch file applied in 'cwebbin.spec')
* Apply a 5th patch file to adapt CTWILL macros to CWEB 4.9/4.10
Special formatting:
* Format 'common.w' with CTWILL using 'comm-mini.ch'
* Format 'ctwill.w' with HiTeX using 'proofmac.tex' and 'ctwill-hint.ch'
* New 'pdfproofmac.tex' for use with HiTeX and pdfTeX and XeTeX
- pdfctwimac.tex will no longer work with HiTeX
* Add 'proofsort' script in addition to 'refsort' program
* Minor improvements in all pdf macros
TeX Live:
* CTWILL in TeX Live uses 'kpse_find_file' to look up 'bux' files
* Slightly extend arrays in 'ctwill' and 'refsort' for TeX Live
* Max out 'max_refs' for CWEAVE/CTWILL
* Add 'ctwill.test' for TeX Live
Revise formatted sources:
* e.g., 'twinx'
* 'ctwill' in all its incarnations
git-svn-id: svn://tug.org/texlive/trunk@67978 c570f23f-e606-0410-a88d-b1316a301751
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New material for section 19.
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This helper function had a non-trivial implementation in CWEAVE only.
The extra stuff for CTWILL is moved to 'init_node' with special
provisions for the 'name_dir' pointer.
git-svn-id: svn://tug.org/texlive/trunk@67734 c570f23f-e606-0410-a88d-b1316a301751
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This commit bumps the version number to 4.9.
And it reverts a few occurrences of '\ifacro' as synonym for '\ifpdf'.
All other changes since CWEB 4.8 were committed as rolling releases.
git-svn-id: svn://tug.org/texlive/trunk@67119 c570f23f-e606-0410-a88d-b1316a301751
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This new release provides the following features:
* @<Code sections@> can be used freely in any #if -- #elif -- #else --
#endif preprocessor branches without bashing the debugger
* The GCC compiler can be invoked with option -Wimplicit-fallthrough=2
on all CWEB code modules and will acknowledge /* fall through */
comments in the tangled C code
* Simple C casts like '(double)x' are formatted with non-breaking small
spaces as '(double)\,x' in the woven TeX output
* The HINT boolean macros are now in lowercase (as in ifhint.tex)
* Comma-separated lists of variable declarations are formatted in
accordance with function parameter lists and enumerations, i.e.,
comma is handled in math-mode with associated small spacing
and it fixes these bugs:
* Section @<Preprocessor definitions@> isn't overprinted (in PDF)
* Trivial CWEB code is formatted correctly (issue #36)
* Nested type definitions are recognized (issue #34)
Major remaining bug (as of CWEB 4.3.1):
* Issue #38 as described earlier
git-svn-id: svn://tug.org/texlive/trunk@63490 c570f23f-e606-0410-a88d-b1316a301751
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Major changes since CWEB 4.5:
* Restore '\T' macro backward compatibility.
CWEB 4.3 introduced a major change in the '\T' macro to allow C++ 'hex
exponent' notation (e.g., 0x1FFFFp10). This made CWEAVE/CTWILL mutually
incompatible with non-matching versions of their set of macros and v.v.
This release tries to reestablish the standard behavior at least for
numeric constants. Of course, 'old' CWEAVE/CTWILL won't deliver on 'hex
exponents' in the CWEB input, but those should be rare anyway.
* Restore 'classic' PDF page dimensions.
Heiko's PDF files of 2014 used 'Executive' page dimensions, i.e.,
7.5in times 10in. C/WEB's internal inch values suggest to use those
plus a 0.5in border on each side.
* Revert meaning of option 'c'.
Option 'c' is OFF by default to avoid spurious entries in build.log.
* 'squash'/'reduce' have been straightened out for k=1,..,4.
* Code beautifications for 'make fullmanual'.
* Code cleanup for internal reasons.
* Cleanup in 'prod.w' (indentation et al.).
* New 'prod-cweave.w' (along 'prod-twill.w') for material from CWEBbin.
* Fixes for option '-o' (didn't work as advertised in border cases).
* New signature for the 'make_ministring' function in CTWILL.
git-svn-id: svn://tug.org/texlive/trunk@61411 c570f23f-e606-0410-a88d-b1316a301751
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This is a service release for CWEB 4.0.
* Upstream CWEB 4.5 was reviewed with the 'splint' utility. This
resulted in lots of cast changes and a few code improvements.
* All 'length' variables are retyped to 'size_t'.
* <stdbool.h> is replaced by <kpathsea/simpletypes.h> to keep CWEB
compatible with antique systems that still support TeX Live.
git-svn-id: svn://tug.org/texlive/trunk@59926 c570f23f-e606-0410-a88d-b1316a301751
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This is yet another service release for CWEB 4.0.
* Upstream CWEB 4.4 has been reset to the original buffer sizes
of CWEB 3.64c. These are now also used in stand-alone CWEBbin.
CWEB for TeX Live uses extended/maxed-out buffer settings.
* A few minor typographical bugs were fixed.
* Tons of minutiae were addressed in the 'fullmanual' documents.
git-svn-id: svn://tug.org/texlive/trunk@59486 c570f23f-e606-0410-a88d-b1316a301751
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This release is almost the same as CWEB 4.3 of 2021-04-16, but
* it fixes the indexing bug in CWEAVE/CTWILL that got retracted
* it extracts and collects all additions made in CTWILL, so that the
section numbers of CWEAVE are retained up to §272 and new material is
described in the (first) appendix, including the CTWILL user manual
* it provides fully revised and (hopefully) corrected mini-indexes for
CTWILL, if it is processed by itself (to be published in package
'knuth-pdf' on CTAN)
git-svn-id: svn://tug.org/texlive/trunk@59061 c570f23f-e606-0410-a88d-b1316a301751
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This reverts commit 3ccac2a7d0f4a19dde861c6f4c178e853d90f0cc.
CWEB 4.3 is seriously broken.
git-svn-id: svn://tug.org/texlive/trunk@59048 c570f23f-e606-0410-a88d-b1316a301751
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This release introduces new features to CWEB 4:
* Former option '-t' is now called '-c'.
- New option '-t' for CWEAVE when dealing with 'typename' in
C++ templates.
- New option '-k' for CTANGLE to keep '-separators in numeric
literals.
* Support for "variadic macros" along "variadic functions".
* @d is printed similar to #define (and vice versa):
- '#' is no longer printed in boldface.
- Spacing is similar in most cases.
* Support for extended C99/C++ numeric literals:
- hexadecimal, octal, and -- new! -- binary numbers.
- NOTE: 'cwebmac.tex 4.3' is NOT compatible with CWEAVE 4.2 and older
and vice versa.
* Long parameter lists in ANSI function definitions are indented similar
to old-style function parameters.
- Option '-i' works similar for old-style and modern function headers.
* Additional C99/C++ keywords -- from 'alignas' to 'thread_local' -- are
supported internally.
* '@i'nclude file 'iso_types.w' for numeric types (in addition to
'c++lib.w').
* Countless code modifications, including some corrections amd
improvements.
Thanks and cudos to Github user "@texdraft" for numerous contributions
to this feature release!
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This second service release wraps up the major code overhaul
of CWEB 4.0. New features will take more time.
git-svn-id: svn://tug.org/texlive/trunk@57895 c570f23f-e606-0410-a88d-b1316a301751
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Enough changes have accumulated since the major release of CWEB 4.0
to warrant a new revision number.
git-svn-id: svn://tug.org/texlive/trunk@57806 c570f23f-e606-0410-a88d-b1316a301751
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In the course of the "2021 TeX tuneup", Don Knuth kindly transferred
the responsibility for CWEB to me; see the original CWEB home page
(https://www-cs-faculty.stanford.edu/~knuth/cweb.html), section
"CWEB 4.0" and the updated CWEB development project
(https://github.com/ascherer/cweb).
This first new release draws heavily on the multi-decade work collected
in my "CWEBbin" project (https://github.com/ascherer/cwebbin). I moved
(almost) all stuff from the "*-patch.*" changefiles into the new CWEB
sources and applied all of the "*-ansi.*" changes as well.
Moreover, I made "common.h" the full interface of "common.w" in order to
avoid code redundancy. And I tried to fix as many of the bugs reported
by email to DEK and/or tex-k@tug.org.
In total, "make; make cautiously; make fullmanual" runs flawlessly with
GCC on Linux and with LLVM on MacOS.
After the release of "CWEB 4.0", also "CWEBbin 2021" has also been fully
revised. Thousands of lines of changefiles could be purged. What's
left are the clearcut extensions for CWEB and the additional stuff for
integration in "TeX Live 2021".
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