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/klammer_base.py

@@ -0,0 +1,58 @@
+import pprint
+import re
+import kutil
+
+def unescape_ktesc(s):
+    """Resolve KTESC escape markers back to original characters.
+    Use this for argument values used programmatically (filenames, etc.)."""
+    def replace(match):
+        hex_chars = match.group(1)
+        result = ''
+        for i in range(0, len(hex_chars), 4):
+            result += chr(int(hex_chars[i:i+4], 16))
+        return result
+    return re.sub(r'KTESC([0-9a-f]+)KTESC', replace, s)
+
+class Klammer_base:
+    def __init__(self, K):
+        #args = {k:escape(v) for k, v in K.__dict__.items()
+        args = {k:v for k, v in K.__dict__.items()
+                if not k.startswith('__')}
+
+        for key in args:
+            setattr(self, key, args[key])
+
+        #setattr(self, "_klammer_name", klammer_name)
+        #pprint.pprint(self.__dict__)
+
+
+    def html(self):
+        #return '[{}: HTML]'.format(self.__class__.__name__)
+        return None
+
+    def tex(self):
+        #return '[{}: LaTeX]'.format(self.__class__.__name__)
+        return None
+
+    def txt(self):
+        #return '[{}: Plain text]'.format(self.__class__.__name__)
+        return None
+
+    def show(self, label=""):
+        if label:
+            print(label)
+        pprint.pprint(self.__dict__)
+
+    def __str__(self):
+        result = None
+        if self.K_target == 'html':
+            result = self.html()
+        elif self.K_target in {'tex', 'pdf'}:
+            result = kutil.escape(self.tex())
+        elif self.K_target == 'txt':
+            result = self.txt()
+        if result is None:
+            #print(self.__dict__)
+            raise Exception(
+                f'Target "{self.K_target}" is undefined for klammer "@{self.K_klammer}"')
+        return result