From 1e40ac66a43a14325c8a74b7b5f2205385c3fd76 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Kat=20March=C3=A1n?= <kzm@zkat.tech>
Date: Sat, 5 Oct 2024 14:31:31 -0700
Subject: [PATCH] get rid of syntactically significant unicode equals signs

Fixes: #399
---
 SPEC.md | 14 ++++----------
 1 file changed, 4 insertions(+), 10 deletions(-)

diff --git a/SPEC.md b/SPEC.md
index e09582a..5d1a5a2 100644
--- a/SPEC.md
+++ b/SPEC.md
@@ -133,14 +133,11 @@ make it act as plain whitespace, even if it spreads across multiple lines.
 
 #### Equals Sign
 
-Any of the following characters may be used as equals signs in properties:
+Only the following character may be used as equals signs in properties:
 
 | Name | Character | Code Point |
 |----|-----|----|
 | EQUALS SIGN | `=` | `U+003D` |
-| SMALL EQUALS SIGN | `﹦` | `U+FE66` |
-| FULLWIDTH EQUALS SIGN | `＝` | `U+FF1D` |
-| HEAVY EQUALS SIGN | `🟰` | `U+1F7F0` |
 
 ### Argument
 
@@ -334,8 +331,7 @@ negative number.
 
 The following characters cannot be used anywhere in a [Identifier String](#identifier-string):
 
-* Any of `(){}[]/\"#;`
-* Any [Equals Sign](#equals-sign)
+* Any of `(){}[]/\"#;=`
 * Any [Whitespace](#whitespace) or [Newline](#newline).
 * Any [disallowed literal code points](#disallowed-literal-code-points) in KDL
   documents.
@@ -780,19 +776,17 @@ node-prop-or-arg := prop | value
 node-children := '{' nodes final-node? '}'
 node-terminator := single-line-comment | newline | ';' | eof
 
-prop := string optional-node-space equals-sign optional-node-space value
+prop := string optional-node-space '=' optional-node-space value
 value := type? optional-node-space (string | number | keyword)
 type := '(' optional-node-space string optional-node-space ')'
 
-equals-sign := See Table ([Equals Sign](#equals-sign))
-
 string := identifier-string | quoted-string | raw-string
 
 identifier-string := unambiguous-ident | signed-ident | dotted-ident
 unambiguous-ident := ((identifier-char - digit - sign - '.') identifier-char*) - 'true' - 'false' - 'null' - 'inf' - '-inf' - 'nan'
 signed-ident := sign ((identifier-char - digit - '.') identifier-char*)?
 dotted-ident := sign? '.' ((identifier-char - digit) identifier-char*)?
-identifier-char := unicode - unicode-space - newline - [\\/(){};\[\]"#] - disallowed-literal-code-points - equals-sign
+identifier-char := unicode - unicode-space - newline - [\\/(){};\[\]"#=] - disallowed-literal-code-points
 
 quoted-string := '"' (single-line-string-body | newline multi-line-string-body newline unicode-space*) '"'
 single-line-string-body := (string-character - newline)*