From aba01b80e7ea75438db7933f9430997bc853250f Mon Sep 17 00:00:00 2001
From: Jonas Smedegaard <dr@jones.dk>
Date: Mon, 26 May 2025 10:05:06 +0200
Subject: add syntax SemWord

---
 _markdown.qmd          |  4 +++-
 _syntax.qmd            |  2 ++
 syntax/def.peg         |  3 ++-
 syntax/def_SemWord.py  | 22 ++++++++++++++++++++++
 syntax/def_SemWords.py | 14 +++++---------
 5 files changed, 34 insertions(+), 11 deletions(-)
 create mode 100755 syntax/def_SemWord.py

diff --git a/_markdown.qmd b/_markdown.qmd
index 12a2180..d1aa5dd 100644
--- a/_markdown.qmd
+++ b/_markdown.qmd
@@ -246,9 +246,11 @@ See @fig-def-additions for their syntax diagrams.
 
 ![](syntax/def_SemWords.svg)
 
+![](syntax/def_SemWord.svg)
+
 ![](syntax/def_SEMPREFIX.svg)
 
-Syntax of `SemWords`, `Curie`, `SEMPREFIX`.
+Syntax of `SemWords`, `SemWord`, `Curie`, `SEMPREFIX`.
 
 :::
 
diff --git a/_syntax.qmd b/_syntax.qmd
index e7b9d56..d8af814 100644
--- a/_syntax.qmd
+++ b/_syntax.qmd
@@ -32,6 +32,8 @@ regular expressions and the negative predicate from PEG notation.
 
 ![PlainWords](syntax/def_PlainWords.svg)
 
+![SemWord](syntax/def_SemWord.svg)
+
 ![Url](syntax/def_Uri.svg)
 
 ![HardBreak](syntax/def_HardBreak.svg)
diff --git a/syntax/def.peg b/syntax/def.peg
index 30157d2..11ce1ab 100644
--- a/syntax/def.peg
+++ b/syntax/def.peg
@@ -51,7 +51,8 @@ NEWLINE        <- '\r\n'
 # @see <https://source.jones.dk/semantic-markdown/about/>
 AnnotatedWordsX  <- '[' Words ']'
                     ('{' (SemWords / ![{}] PlainWords) '}')
-SemWords         <- SEMPREFIX '<' ![<>] PRINTABLES '>'
+SemWords         <- SemWord (_ SemWord)*
+SemWord          <- SEMPREFIX '<' ![<>] PRINTABLES '>'
                   / SEMPREFIX Curie
 SEMPREFIX        <- [.=]
 
diff --git a/syntax/def_SemWord.py b/syntax/def_SemWord.py
new file mode 100755
index 0000000..d0768ad
--- /dev/null
+++ b/syntax/def_SemWord.py
@@ -0,0 +1,22 @@
+#!/usr/bin/python3
+
+# Copyright 2025, Jonas Smedegaard <dr@jones.dk>
+# SPDX-License-Identifier: GPL-3+
+
+from railroad import *
+
+Diagram(
+	Choice(0,
+		Sequence(
+			NonTerminal("SEMPREFIX"),
+			"<",
+			NonTerminal("![<>] PRINTABLES"),
+			">",
+		),
+		Sequence(
+			NonTerminal("SEMPREFIX"),
+			NonTerminal("CURIE"),
+		)
+	),
+	type="complex"
+).writeStandalone(sys.stdout.write)
diff --git a/syntax/def_SemWords.py b/syntax/def_SemWords.py
index d0768ad..2a2af8f 100755
--- a/syntax/def_SemWords.py
+++ b/syntax/def_SemWords.py
@@ -6,17 +6,13 @@
 from railroad import *
 
 Diagram(
+	NonTerminal("SemWord"),
 	Choice(0,
-		Sequence(
-			NonTerminal("SEMPREFIX"),
-			"<",
-			NonTerminal("![<>] PRINTABLES"),
-			">",
+		OneOrMore(
+			NonTerminal("_"),
+			NonTerminal("SemWord")
 		),
-		Sequence(
-			NonTerminal("SEMPREFIX"),
-			NonTerminal("CURIE"),
-		)
+		Skip()
 	),
 	type="complex"
 ).writeStandalone(sys.stdout.write)
-- 
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