fix #659

.gitignore

@@ -1 +1,2 @@
-build
+build
+.DS_Store

tabularray-dev.sty

@@ -23,7 +23,7 @@
 \DeclareRelease{v2021}{2021-01-01}{tabularray-2021.sty}
 \DeclareCurrentRelease{}{2026-01-01}
 
-\ProvidesExplPackage{tabularray-dev}{2026-05-11}{2026A-DEV}
+\ProvidesExplPackage{tabularray-dev}{2026-05-28}{2026A-DEV}
   {Development and experimental variant of tabularray}
 
 %% \IfFormatAtLeastTF, xparse and lthooks are added in LaTeX 2020-10-01
@@ -5612,10 +5612,18 @@
     \prop_clear:N \l__tblr_column_min_width_prop
     \int_step_variable:nNn { \c@colcount } \l__tblr_j_tl
       {
-        \tl_set:Ne \l__tblr_min_tl
-          { \prop_item:Ne \l__tblr_col_item_skip_size_prop { item[\l__tblr_j_tl] } }
-        \prop_put:Nee \l__tblr_column_min_width_prop
-          { \l__tblr_j_tl } { \l__tblr_min_tl }
+        \tl_set:Ne \l__tblr_co_tl
+          { \__tblr_data_item:nen { column } { \l__tblr_j_tl } { coefficient } }
+        \fp_compare:nNnTF { \l__tblr_co_tl } > { 0 }
+          {
+            \prop_put:Nen \l__tblr_col_item_skip_size_prop { item[\l__tblr_j_tl] } { 0pt }
+          }
+          {
+            \tl_set:Ne \l__tblr_min_tl
+              { \prop_item:Ne \l__tblr_col_item_skip_size_prop { item[\l__tblr_j_tl] } }
+            \prop_put:Nee \l__tblr_column_min_width_prop
+              { \l__tblr_j_tl } { \l__tblr_min_tl }
+          }
       }
     \prop_set_eq:NN \l__tblr_col_item_even_prop \l__tblr_col_item_skip_size_prop
     \str_if_eq:enTF

testfiles/README.md

@@ -122,3 +122,4 @@
 | `table-015` | empty tables (#326) |
 | `table-016` | first cell starts with a square bracket (#598) |
 | `table-017` | set horizontal alignment of longtblr with `\SetTblrOuter` (#611) |
+| `table-018` | merged cells in non-X columns  (#659) |

testfiles/cell-005.md5

@@ -1 +1 @@
-6da0b1c829c78ea57c29e1cfc3e5623e
+ca1202ef9f687b517c2f4ed868860251

testfiles/table-018.md5

@@ -0,0 +1 @@
+fe43acdc67c99ddb15a832e442ed884f

testfiles/table-018.pdftex.tlg

@@ -0,0 +1,8 @@
+This is a generated file for the l3build validation system.
+Don't change this file in any respect.
+============================================================
+TEST 1: Test merged cells in non-X columns
+============================================================
+============================================================
+[1
+] (table-018.aux)

testfiles/table-018.tex

@@ -0,0 +1,33 @@
+\documentclass{article}
+\input{regression-test}
+\setlength{\parindent}{0pt}
+
+\begin{document}
+\START
+\BEGINTEST{Test merged cells in non-X columns}
+\begin{tblr}{
+  colspec = {lllXX},
+  hlines,
+  vlines,
+}
+    1-1 & 1-2 & 1-3 & very very long text in the X column & sooooooooooooo very much long it will not stop and continue \\
+    2-1 & 2-2 & 2-3 & 2-4 & 2-5 \\ 
+\end{tblr}
+\begin{tblr}{
+  colspec = {lllXX},
+  hlines,
+  vlines,
+}
+    1-1 & \SetCell[c=2]{c} merged & 1-3 & very very long text in the X column & sooooooooooooo very much long it will not stop and continue \\
+    2-1 & 2-2 & 2-3 & 2-4 & 2-5 \\ 
+\end{tblr}
+\begin{tblr}{
+  colspec = {llrXX},
+  hlines,
+  vlines,
+}
+    1-1 & 1-2 & \SetCell[c=2]{c} merged & very very long text in the X column & sooooooooooooo very much long it will not stop and continue \\
+    2-1 & 2-2 & 2-3 & 2-4 & 2-5 \\ 
+\end{tblr}
+\ENDTEST
+\end{document}

testfiles/table-018.tlg

@@ -0,0 +1,8 @@
+This is a generated file for the l3build validation system.
+Don't change this file in any respect.
+============================================================
+TEST 1: Test merged cells in non-X columns
+============================================================
+============================================================
+[1
+] (table-018.aux)