Allow 'overlong' separated uncertainties (fixes #506)

josephwright · Jul 20, 2021 · 2ab37de · 2ab37de
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -10,6 +10,7 @@ Changelog](https://keepachangelog.com/en/1.0.0/), and this project adheres to
 ### Fixed
 - Print degree symbol if `fontspec` package is loaded with
   `no-math` option (issue #505)
+- Handling of 'over-long' separated uncertainties (issue #506)
 - Symbol for arcs in text mode (issue #507)
 
 ## [v3.0.20]

diff --git a/siunitx-number.dtx b/siunitx-number.dtx
@@ -906,16 +906,9 @@
 \cs_new_protected:Npn
   \@@_parse_combine_uncert_auxi:nnnnnnnn #1#2#3#4#5#6#7#8
   {
-    \int_compare:nNnTF { \tl_count:n {#6} } > { \tl_count:n {#2} }
-      {
-        \tl_clear:N \l_@@_parsed_tl
-        \tl_clear:N \l_@@_flex_tl
-      }
-      {
-        \@@_parse_combine_uncert_auxii:fnnnn
-          { \int_eval:n { \tl_count:n {#3} - \tl_count:n {#7} } }
-          {#2} {#3} {#6} {#7}
-      }
+     \@@_parse_combine_uncert_auxii:fnnnn
+        { \int_eval:n { \tl_count:n {#3} - \tl_count:n {#7} } }
+        {#2} {#3} {#6} {#7}
   }
 \cs_new_protected:Npn
   \@@_parse_combine_uncert_auxii:nnnnn #1

diff --git a/testfiles/siunitx-number.tlg b/testfiles/siunitx-number.tlg
@@ -1990,13 +1990,7 @@ l. ...  }
 ============================================================
 TEST 58: Overlong uncertainty
 ============================================================
-! Package siunitx Error: Invalid number '123+-4567'.
-For immediate help type H <return>.
- ...                                              
-l. ...  }
-The input '123+-4567' could not be parsed as a number following the format
-defined in module documentation.
-> \l_tmpa_tl=.
+> \l_tmpa_tl=123(4567).
 <recently read> }
 l. ...  }
 ============================================================