Typed arguments, calculated tables, spans, closed-world fonts, top-level fnt/ and env/

Sync with klammertext-dev through b90b0e09:

- Argument types end to end: :python_cast values are applied (Python
  @eval receives real bools/numbers/lists), argument values are
  validated against their argtype patterns with the argtype's
  description as the error message, argtypes can declare :default
  (overridable per declaration), and parameterized type families are
  supported: rest(N) casts a rest argument to an N-dimensional list
  (bar-count = dimension).
- Unified indexed_range syntax (selector with parenthesized subsets,
  composable mnemonic names) for table lines and spans.
- Table klammer: caption fonts fixed in both targets, :column_width /
  :leading / :colsep wired, :colspan and :rowspan render (HTML
  attributes; \multicolumn / \multirow), calculated cell values (:calc)
  with prefix operators, display-precision semantics, :calc_format and
  :decimal period|comma.
- Fonts: closed-world resolution on the Klammertext font store
  (infrastructure in mac/font_store; no Google Fonts links or fetch).
  Default fonts live in the top-level fnt/; additional fonts install
  into KLAMMERTEXT_FONTS directories via kdesc --font (list, samples,
  preview, install — classification by font metadata).  CSS font family
  names are quoted (digit-initial families were silently lost).
- Environment files moved from mac/env/ to the top-level env/; shell
  profiles source env/runtime.env.  Dead per-host variants removed.
- Container: fnt/ ships in the image; curl removed (no network use).

sks/image/image.k

@@ -16,6 +16,13 @@
 # @@@argtype pixels | a pixel count :pattern \d+px @@@
 # @@image.k basename : Image read from a file @@
 # @@image.html basename | width | height : @eval import image ; result = image.image(K) eval@ @@
+
+@@@argtype image_hpos |
+  horizontal position of an image
+  :pattern left^|center^|right^|none
+  :default center
+@@@
+
 @@image
   basename
   :id
@@ -23,7 +30,7 @@
   @caption_arguments@
   :vmargin.bool true
   :center.bool true
-  :hpos.hpos center
+  :hpos.image_hpos
   :rel
   :abswidth.number 0.0
   :border.bool false
@@ -32,13 +39,13 @@
 @@
 
 @@image_grid
-  image_specs.rest
+  image_specs.rest(2)
   :caption
   :number.bool true
   :cell_number.bool false
   :landscape.bool false
   :scale.number 0.98
-  :caption_side.side bottom
+  :caption_side.caption_side
   :caption_side_center.bool true
 #
   :thumbnail.bool false

sks/image/image.py

@@ -122,7 +122,6 @@ class Image(klammer_base.Klammer_base):
         #if self.caption or self.number:
         #    width = "\\textwidth"
         #else:
-        self.number = self.number == "true"
         width = kutil.parse_length("tex", self.width, self.rel_fraction)[0]
         width = re.sub("px", "pt", width)
         #result = f'\\includegraphics[width={width}]{{{source}}}'

sks/image/image_grid.py

@@ -25,11 +25,16 @@ class Kargs:
         self.K_input_filenames = K.K_input_filenames
         self.K_output_dir = K.K_output_dir
         self.K_output_basename = K.K_output_basename
-        self.image_output_dir = K.Image_output_dir
+        self.Image_output_dir = K.Image_output_dir
         self.K_toc_only = False
         self.id = ""
         self.as_string = False
         self.rel = None
+        # Defaults for @image parameters the grid does not use per cell.
+        self.border = False
+        self.vmargin = False
+        self.abswidth = 0.0
+        self.caption_font_size = .9
 
 def img(K, target, basename, caption, width):
     result = image.Image(
@@ -46,7 +51,7 @@ class Image_grid(klammer_base.Klammer_base):
         self.basenames = []
         self.captions = []
 
-        for row in kutil.rest_args(self.image_specs, dimensions=2):
+        for row in self.image_specs:
             self.images.append(
                 [e.groups() for e in [image_pat.fullmatch(s.strip()) for s in row]])
             self.basenames.append([e[0] for e in self.images[-1]])