concat book

build/ipynb2mdd.sh

 MD="mdd" 
+CH="ch.md"
 
 [ -e $MD ] && rm -rf $MD
 mkdir $MD
 
+# Collect files.
 cp index.md $MD/
 cp -R img $MD/
 for f in chapter*/*; do
@@ -13,6 +15,7 @@ for f in chapter*/*; do
 	fi
 done
 
+# ipynb to md.
 for f in $MD/chapter*/*ipynb; do
     base=$(basename $f)
     jupyter nbconvert --to markdown $f --output "${base%%.*}.md" 
@@ -20,14 +23,47 @@ for f in $MD/chapter*/*ipynb; do
 done
 
 for f in $MD/chapter*/*md; do
+	dir=$(dirname "$f")
+	# Remove inner link. 
+	sed -i 's/\[\([^]]*\)\]([^\)]*.md)/\1/' $f
+	# Refer pdf instead of svg.
 	sed -i s/\.svg/\.pdf/ $f
+	# Refer img in the same level. 
+	sed -i 's/\](..\/img/\](img/' $f
+	if [ "$f" != "$dir/index.md" ]; then
+		sed -i s/#\ /##\ / $f
+	fi
 done
 
+# Convert svg to pdf.
 for f in $MD/img/*svg; do
 	rsvg-convert -f pdf -o "${f%%.*}.pdf" $f
 	rm $f
 done
 
+# Concat sections in each chapter.
+for f in $MD/chapter*/index.md; do
+	sections=$(python -c 'import mdd_utils; print(mdd_utils.get_sections())' $f)
+	dir=$(dirname "$f")
+	chapter=$dir/$CH
+	cat $f $sections > $chapter
+	perl -i -0777 -pe 's/```eval_rst[^`]+```//ge' $chapter
+done
+
+chapters=$(python -c 'import mdd_utils; print(mdd_utils.get_chapters())' $MD/index.md)
+i=1
+for chapter in $chapters; do
+	# Move matplotlib plots outside.
+	mv $MD/$chapter/*_files $MD/
+	# Move ch.md to ../ch0x.md 
+	mv $MD/$chapter/$CH $MD/ch$(printf %02d $i).md
+	rm -rf $MD/$chapter
+	i=$((i + 1))		
+done
+
+rm $MD/index.md
+
+# zip files.
 [ -e "$MD.zip" ] && rm "$MD.zip"
 zip -r "$MD.zip" $MD 
 [ -e $MD ] && rm -rf $MD 

build/mdd_utils.py

+import os
+import sys
+
+def get_sections():
+    assert len(sys.argv) == 2
+    index_md = sys.argv[1]
+    dirname = os.path.dirname(index_md)
+
+    start = False
+    sections = []
+    with open(index_md) as f:
+        for line in f:
+            line = line.rstrip().lstrip()
+            if ':maxdepth:' in line:
+                start = True
+                continue
+            elif line == '```':
+                break
+            if start and len(line) > 1:
+                sections.append(os.path.join(dirname, line + '.md'))
+    return ' '.join(sections)
+
+
+def get_chapters():
+    assert len(sys.argv) == 2
+    index_md = sys.argv[1]
+
+    start = False
+    chapters = []
+    with open(index_md) as f:
+        for line in f:
+            line = line.rstrip().lstrip()
+            if ':maxdepth:' in line:
+                start = True
+                continue
+            elif line == '```':
+                break
+            if start and len(line) > 1:
+                chapters.append(line.split('/')[0])
+    return ' '.join(chapters)
+