From f6da1187ada802277398da17c7a12401e9b545aa Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Madeleine=20Sydney=20=C5=9Alaga?= <msyds@deertopia.net>
Date: Wed, 25 Feb 2026 17:06:33 -0700
Subject: [PATCH]

---
 doerg/src/net/deertopia/doerg/tex.clj | 44 +++++++++++++++++----------
 1 file changed, 28 insertions(+), 16 deletions(-)

diff --git a/doerg/src/net/deertopia/doerg/tex.clj b/doerg/src/net/deertopia/doerg/tex.clj
index 63d37ec..dc64d78 100644
--- a/doerg/src/net/deertopia/doerg/tex.clj
+++ b/doerg/src/net/deertopia/doerg/tex.clj
@@ -72,7 +72,8 @@
               dimensional-info (->> r (drop 2) (map parse-long))
               errors (-> out
                          (subs (.end m-start) (.start m-end))
-                         (str/replace-first #"[^!]*" ""))]
+                         (str/replace-first #"[^!]*" "")
+                         str/trim)]
           (assert (= snippet-ix snippet-ix*))
           (recur (conj acc (-> (snippet-dimensions
                                 tightpage-info dimensional-info)
@@ -90,13 +91,12 @@
 ;; dvisvgm --page=1- --optimize --clipjoin --relative --no-fonts -v3 --message='processing page {?pageno}: output written to {?svgpath}' --bbox=preview -o %B-%%9p.svg %f
 
 (defn- invoke-dvisvgm [& {:keys [file output-dir]}]
-  (let [r (invoke
-           {:dir output-dir}
-           "dvisvgm" "--page=1-" "--optimize" "--clipjoin"
-           "--relative" "--no-fonts" "-v3"
-           "--message=processing page {?pageno}: output written to {?svgpath}"
-           "--bbox=preview" "-o" "%9p.svg" file)]
-    r))
+  (invoke
+   {:dir output-dir}
+   "dvisvgm" "--page=1-" "--optimize" "--clipjoin"
+   "--relative" "--no-fonts" "-v3"
+   "--message=processing page {?pageno}: output written to {?svgpath}"
+   "--bbox=preview" "-o" "%9p.svg" file))
 
 (defn- snippet-file-names
   "Return a map of TeX snippets (as strings, including the math
@@ -120,14 +120,26 @@
   (fs/with-temp-dir [dir {:prefix "doerg-xelatex"}]
     (let [preview-tex (fs/file dir "preview.tex")
           preview-xdv (fs/file dir "preview.xdv")
-          snippet->file (-> (snippet-file-names snippets)
-                            (update-vals #(fs/file dir %)))]
+          distinct-snippets (distinct snippets)]
       (fs/create-dirs output-dir)
-      (->> (instantiate-preview-template snippets)
+      (->> (instantiate-preview-template distinct-snippets)
            (spit preview-tex))
-      (invoke-xelatex :output-dir dir :file preview-tex)
-      (invoke-dvisvgm :output-dir output-dir :file preview-xdv)
-      snippet->file
+      (let [dimensions (-> (invoke-xelatex :output-dir dir :file preview-tex)
+                           ::out parse-xelatex-output)
+            _ (invoke-dvisvgm :output-dir output-dir :file preview-xdv)]
+        ;; Adorn each snippet with dimensions and errors parsed from
+        ;; XeLaTeX's output, and the paths to SVG files generated by
+        ;; dvisvgm.
+        (assert (= (count distinct-snippets) (count dimensions)))
+        (->> (map (fn [ix snippet dimensions]
+                    {snippet
+                     (-> dimensions
+                         (assoc :file
+                                (fs/file dir (format "%09d.svg" (inc ix)))))})
+                  (range)
+                  distinct-snippets
+                  dimensions)
+             (into {})))
       #_
       (do (when (fs/exists? "/tmp/doerg-tex-test") ; For debugging
             (fs/delete-tree "/tmp/doerg-tex-test"))
@@ -136,8 +148,8 @@
 (comment
   (render-xelatex "/tmp/doerg-tex-svgs"
                   "\\(c = \\sqrt{x^2 + y^2}\\)"
-                  "x" "y" "x"
-                  "\\undefinedcommandlol"))
+                  "\\(x\\)" "\\(y\\)" "\\(x\\)"
+                  "\\(\\undefinedcommandlol\\)"))
 
 
 ;;; Temml