dotfiles

commit 19e746f6fb949af4db81bfbdbd90b70ba3ee29c9
parent a25d41ff3157535738b3a68dd239b62de9645d49
Author: Anders Damsgaard <anders@adamsgaard.dk>
Date:   Thu, 11 Feb 2021 15:03:37 +0100

cdoc: improve dependency scanning in tex files

Diffstat:
M
.local/bin/cdoc
 | 
41
++++++++++++++++++++++-------------------

1 file changed, 22 insertions(+), 19 deletions(-)
diff --git a/.local/bin/cdoc b/.local/bin/cdoc
@@ -24,32 +24,35 @@ regeximatch() {
 	printf '%s' "$1" | grep -iEq "$2"
 }
 
-extract_tex_include() {
-	d="$(grep -v ".*%.*\\${2}" "$1" |
-	     sed -nE "/.*\\${2}\\[*.*\\]*\\{([^}]*)\\}.*/{ s//\\1/;p; }")"
-	if [ "$2" = "bibliography" ] && [ -n "$d" ]; then
-		d="${d%.bib}.bib"
-	fi
-	if [ -n "$d" ]; then
-		printf '%s\n' "$d"
+extract_tex_includes() {
+	if ! test -r "$1"; then
+		return
 	fi
+	awk '
+		function firstval(s) {
+			if(!match(s, /%.*\{/) && match(s, /\{.*\}/))
+				return substr(s, RSTART+1, RLENGTH-2)
+		}
+		$0 ~ /\\input\{/ { print firstval($0) }
+		$0 ~ /\\include\{/ { print firstval($0) }
+		$0 ~ /\\includegraphics\[*.*\]*\{/ { print firstval($0) }
+		$0 ~ /\\addbibresource\{/ { print firstval($0) }
+		$0 ~ /\\bibliography\{/ && $0 !~ /%.*\{/ {
+			m = firstval($0)
+			if (m !~ /\.bib$/)
+				printf("%s.bib", m)
+			else
+				print m
+		}
+	' "$1"
 }
 
 find_dependencies() {
 	case "$1" in
 		*.tex)
 			printf '%s\n' "$1"
-			if grep -q -e '\input{' \
-					   -e '\include[graphics]' \
-					   -e '\addbibresource{' \
-					   -e '\bibliography{' \
-					   "$1"; then
-				extract_tex_include "$1" 'input'
-				extract_tex_include "$1" 'include'
-				extract_tex_include "$1" 'includegraphics'
-				extract_tex_include "$1" 'addbibresource'
-				extract_tex_include "$1" 'bibliography'
-			fi;;
+			extract_tex_includes "$1"
+			;;
 		*)
 			die "cannot find dependencies in unknown file type $1";;
 	esac