Initial commit: Klammertext source distribution

Curated source subset assembled by klammertext-dev's doc/make_dist.sh: the Klammermachine (mac), the Standard Klammer Set (sks), the commands (com), editor plugins and install guides (doc), a test subset (tst), and lib/bin placeholders. Builds with 'make -C com'.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

sks/kutil/kutil.k

@@ -0,0 +1,63 @@
+@@show s : @eval :cpp show show @ @@
+
+@@caption_arguments :
+  :caption
+  :number.bool true
+  :caption_side.side bottom
+  :caption_font.font i
+  :caption_font_size.float .9
+@@
+
+@@reference spec | name :
+ __REF__*spec*__*name*__
+@@
+
+@@@argtype number | a number
+  :pattern 'float'^|'int'
+  :python_cast (lambda s: float(s))
+@@@
+
+@@@argtype length | a length specifier
+ #:pattern f^|none^|'float'w^|'float'h^|'int'px^|'float'em^|'int'pt  
+   # The last pattern is a string, used where possible to determine its length
+   :pattern f^|none^|'float'w^|'float'h^|'int'px^|'float'em^|'int'pt^|"[^^"]+"^|'float'pw^|'float'ph
+  #  :python_cast (lambda s : __import__("kutil").parse_length("tex", s))
+@@@
+
+@@@argtype lengths | a list of lengths
+  :pattern ('length'^|\s+)*
+  #:python_cast (lambda s : [__import__("kutil").parse_length("tex", e) for e in s.split()])
+@@@
+
+@@@argtype side | a side of a box
+  :pattern top^|right^|bottom^|left
+@@@
+
+@@@argtype hpos | horizontal position
+  :pattern left^|center^|right^|none
+@@@
+
+@@@argtype figure_id |
+an identifier for a figure.
+
+The identifier can be in one of six forms:
+
+       before
+       before <offset-to-figure>
+       after
+       after <offset-to-figure>
+       <image-basename>
+       <id>
+
+The "before" value means the figure before this place in the text;
+the number indicates the number of figures behind that place in the
+text.  This means that "before" is equivalent to "before 1".  The
+"after" value uses an offset in the same way but counting forewards.
+
+For images, the <image-basename> argument is the basename argument to
+the ^@image klammer and can be used as an identifier.
+
+An <id> is the value of the ^:id argument for an image.
+
+^:pattern before(?^:\s+\d+)?^|after(?^:\s+\d+)?^|[-\w]+
+@@@