4 files changed, 188 insertions, 1 deletions
diff --git a/README.md b/README.md
index e466991..e8f8b72 100644
--- a/README.md
+++ b/README.md
@@ -9,3 +9,22 @@ website elsewhere.
 
 For keeping this repo light, the font unifont_jp-13.0.03.ttf is not commited.
 The official website is: http://unifoundry.com/unifont/index.html
+
+*BUT* the font is overweight (11MB!) for reduce it one can use the following
+command to generate the ascii list of used char (don't forget to update it
+if needed). The unicode list aswell the unicode list is commited for simplicity.
+
+```
+python -c 'import sys; print("\n".join(["u+%04x" % (ord(c)) for c in sys.stdin.read()]))' < letters-in-unicode.txt > letters-in-ascii.txt
+```
+
+Then you need to generated the lightened font based on the official you need
+to install [fonttools](https://github.com/fonttools/fonttools) and use the
+following command:
+
+```
+pyftsubset unifont_jp-13.0.03.ttf --output-file=unifont_jp-13.0.03_custom.ttf --unicodes-file=letters-in-ascii.txt
+```
+
+The file `unifont_jp-13.0.03_custom.ttf` *IS* the font name hardcoded in the
+page style!
diff --git a/index.html b/index.html
index 87a438b..255a62b 100644
--- a/index.html
+++ b/index.html
@@ -7,7 +7,7 @@
 
 @font-face {
  font-family: "unifont_jp";
-   src: url("/unifont_jp-13.0.03.ttf") format("truetype");
+   src: url("/unifont_jp-13.0.03_custom.ttf") format("truetype");
 }
 
 html {
diff --git a/letters-in-ascii.txt b/letters-in-ascii.txt
new file mode 100644
index 0000000..b2fc1fe
--- /dev/null
+++ b/letters-in-ascii.txt
@@ -0,0 +1,112 @@
+u+003d
+u+000a
+u+0020
+u+000a
+u+0027
+u+000a
+u+0040
+u+000a
+u+005f
+u+000a
+u+0029
+u+000a
+u+006f
+u+000a
+u+003a
+u+000a
+u+003c
+u+000a
+u+002e
+u+000a
+u+003b
+u+000a
+u+0027
+u+000a
+u+003e
+u+000a
+u+002f
+u+000a
+u+0060
+u+000a
+u+005f
+u+000a
+u+007c
+u+000a
+u+0028
+u+000a
+u+002c
+u+000a
+u+005c
+u+000a
+u+007e
+u+000a
+u+0050
+u+000a
+u+0041
+u+000a
+u+0043
+u+000a
+u+0045
+u+000a
+u+004e
+u+000a
+u+0045
+u+000a
+u+0054
+u+000a
+u+002d
+u+000a
+u+0053
+u+000a
+u+0070
+u+000a
+u+0061
+u+000a
+u+0063
+u+000a
+u+0065
+u+000a
+u+0041
+u+000a
+u+006c
+u+000a
+u+0069
+u+000a
+u+0063
+u+000a
+u+006f
+u+000a
+u+0072
+u+000a
+u+006e
+u+000a
+u+2588
+u+000a
+u+2593
+u+000a
+u+2591
+u+000a
+u+30bb
+u+000a
+u+30eb
+u+000a
+u+30d5
+u+000a
+u+30db
+u+000a
+u+30b9
+u+000a
+u+30c8
+u+000a
+u+30cd
+u+000a
+u+30c3
+u+000a
+u+30c8
+u+000a
+u+30ef
+u+000a
+u+30fc
+u+000a
+u+30af
+u+000a
diff --git a/letters-in-unicode.txt b/letters-in-unicode.txt
new file mode 100644
index 0000000..f6c1f9d
--- /dev/null
+++ b/letters-in-unicode.txt
@@ -0,0 +1,56 @@
+=
+ 
+'
+@
+_
+)
+o
+:
+<
+.
+;
+'
+>
+/
+`
+_
+|
+(
+,
+\
+~
+P
+A
+C
+E
+N
+E
+T
+-
+S
+p
+a
+c
+e
+A
+l
+i
+c
+o
+r
+n
+█
+▓
+░
+セ
+ル
+フ
+ホ
+ス
+ト
+ネ
+ッ
+ト
+ワ
+ー
+ク