From 576e049237a96c3bab680fd73ba1bc9c77ba9d4e Mon Sep 17 00:00:00 2001
From: tavo-wasd <gustavo@gustavocalvo.xyz>
Date: Mon, 11 Sep 2023 12:09:04 -0600
Subject: [PATCH] groff ez images

---
 scripts/groff-compiler | 17 ++++++++++-------
 scripts/groff-img      | 20 ++++++++++++++++++++
 2 files changed, 30 insertions(+), 7 deletions(-)
 create mode 100755 scripts/groff-img

diff --git a/scripts/groff-compiler b/scripts/groff-compiler
index 85bc2b0..e44425c 100755
--- a/scripts/groff-compiler
+++ b/scripts/groff-compiler
@@ -1,20 +1,23 @@
 #!/bin/sh
 #
-# Small compiler script for groff
+# Compiler script for groff
 #
 # [-k (preconv)] Convert encoding to something groff understands
 # [-e (eqn)]     Format equations for troff or MathML
 # [-t (tbl)]     Format tables for troff
 # [-p (pic)]     Compile pictures for troff or TeX
-# [-G (grap)]    Typesetting graphs
+# [-G (grap)]    Typesetting graphs (grap usually not installed by default)
 # [-j (chem)]    Chemical structure diagrams (messes up spacing!)
 
 # Configuration
 BIB="$HOME/Desktop/bibliography" # Bibliography file
 MAC="$HOME/.config/groff/"       # Macros dir
-PRE="ketp"                       # Preprocessors
-
-# Enable macros, grab references, include args
-soelim -I "$MAC" "$1" | refer -p "$BIB" |
-    groff -mspdf -T pdf -U -"$PRE"
+PRE="-ketpG"                     # Preprocessors
+GROMACS="-mspdf"                 # groff macros
+OUT="pdf"                        # Output format
 
+# groff-img: Personal script, image manipulation
+# soelim: Enable macros dir
+# refer: Enable bibliography
+groff-img "$1" | soelim -I "$MAC" | refer -p "$BIB" |
+    groff "$GROMACS" -T "$OUT" -U "$PRE"
diff --git a/scripts/groff-img b/scripts/groff-img
new file mode 100755
index 0000000..1e589c6
--- /dev/null
+++ b/scripts/groff-img
@@ -0,0 +1,20 @@
+#!/bin/sh
+# Replace .IMG commands for proper 
+# .PDFPIC and convert given image files.
+
+FILE="$1"
+OUTPUT="$(cat "$FILE")"
+
+format() {
+    LINE="$1"
+    IMAGE="$(echo "$LINE" | cut -d '"' -f 2)"
+    [ "$IMAGE" != "${IMAGE%%.*}.pdf" ] && ! [ -e "${IMAGE%%.*}.pdf" ] && convert -quiet "$IMAGE" "${IMAGE%%.*}.pdf"
+    echo "$LINE" | sed 's|^.IMG|.PDFPIC|' | sed "s|$IMAGE|${IMAGE%%.*}.pdf|"
+}
+
+for i in $(seq $(grep '^.IMG\s' "$FILE" | wc -l)) ; do
+    LINE="$(echo "$OUTPUT" | grep '^.IMG\s' | head -n 1)"
+    [ -n "$LINE" ] && NEW_LINE="$(format "$LINE")" && OUTPUT=$(echo "$OUTPUT" | sed "s|$LINE|$NEW_LINE|") || break
+done
+
+echo "$OUTPUT"