1 files changed, 83 insertions, 0 deletions
diff --git a/scripts/reqs2tex.py b/scripts/reqs2tex.py
new file mode 100755
index 0000000..9e71a48
--- /dev/null
+++ b/scripts/reqs2tex.py
@@ -0,0 +1,83 @@
+#!/bin/python3
+import sys, tomllib, tex
+
+def flatten(data):
+  if 'description' in data:
+    return [ data ]
+  out = []
+  for key, value in data.items():
+    items = flatten(value)
+    for item in items:
+      if 'label' in item:
+        item['label'] = f"{key}:{item['label']}"
+      else:
+        item['label'] = f"{key}"
+    out += items
+  return out
+
+id_counter = 0
+def make_id(item):
+  global id_counter
+  id_counter += 1
+  return "{type_short}#{counter:03d}".format(
+    type_short = item['type'][0].upper(),
+    counter = id_counter,
+  )
+
+def convert(data):
+  reqs = flatten(data)
+  for index, item in enumerate(reqs):
+    item['id'] = tex.esc(make_id(item))
+    item['index'] = index
+    item['description'] = item.get('description', '???')
+    item['done'] = item.get('done', None)
+    item['priority'] = item.get('priority', 'must')
+    item['type'] = item.get('type', 'system')
+    item['deleted'] = item.get('deleted', False)
+
+  # skip deleted requirements (but process for make_id)
+  reqs = [item for item in reqs if item['deleted'] == False]
+
+  return reqs
+
+def req2aux(req):
+  # TODO: this is a dead-end solution, newlabel only works for in-document anchors, not external links
+  out = [
+    tex.scmd('newlabel', f"req:{req['label']}:id", tex.group(req['id'], req['id'], '', './requirements.pdf', '')),
+    tex.scmd('newlabel', f"req:{req['label']}:id@cref", tex.group(f"[requirement][][]{req['id']}", '')),
+  ]
+  return "\n".join([tex.auxout(line) for line in out])
+
+def fmt_aux(data):
+  out = ""
+  out += tex.cmd('makeatletter')
+  out += "\n".join([req2aux(req) for req in data])
+  out += tex.cmd('makeatother')
+  return out
+
+def fmt_tex(data):
+  return "\n".join([
+    tex.cmd('relax')
+  ])
+
+def main(input_file):
+  data = {}
+  with open(input_file, "rb") as file:
+    data = tomllib.load(file)
+
+  requirements = convert(data)
+
+  output_aux = input_file.removesuffix(".toml") + ".aux"
+  with open(output_aux, "w+") as file:
+    file.write(fmt_aux(requirements))
+
+  output_tex = input_file.removesuffix(".toml") + ".tex"
+  with open(output_tex, "w+") as file:
+    file.write(fmt_tex(requirements))
+
+if __name__ == "__main__":
+  if len(sys.argv) != 2:
+    print("usage: reqs2tex.py reqs.toml")
+    exit(1)
+  main(sys.argv[1])
+