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fantasque-sans/fontdiff

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2015-12-19 22:55:52 +01:00
#!/usr/bin/env bash
# Generate a webpage that allows the comparison of two fonts.
# Pass TTF font files as arguments
if ! type fontforge &> /dev/null; then echo "ERROR: Missing dependency: fontforge" 1>&2; exit 1; fi
OUTPUT="fontdiff.html"
cat > "$OUTPUT" <<EOF
<!DOCTYPE html>
<html>
<head>
<title>Fontdiff $1 vs. $2</title>
<style>
EOF
fontfacedecl() {
base64=$(base64 --wrap=0 "$1")
cat >> "$OUTPUT" <<EOF
@font-face {
font-family: '$2';
src: url('data:font/ttf;base64,$base64') format('truetype');
}
EOF
}
fontfacedecl "$1" font1
fontfacedecl "$2" font2
cat >> "$OUTPUT" <<EOF
h1 {
font-weight: normal;
}
div {
float: left;
width: 150px;
text-align: center;
}
div.font2 {
margin-left: -150px;
}
pre.glyph {
margin: 0;
font-size: 140px;
line-height: 200px;
}
pre.blank-glyph {
height: 200px;
}
.font1 {
color: rgba(255, 0, 0, 0.5);
}
.font2 {
color: rgba(0, 0, 255, 0.5);
}
.font1 .glyph, h1.font1 {
font-family: font1;
}
.font2 .glyph, h1.font2 {
font-family: font2;
}
</style>
</head>
<body>
<h1 class="font1">$1</h1>
<h1 class="font2">$2</h1>
EOF
# Use fontforge to list available glyphs of each font
fontforge -lang=py -script - >> "$OUTPUT" <<EOF
import fontforge;
def print_glyph(_class, glyph):
if glyph and glyph.unicode > 0:
print '<div class="font%s"><pre class="glyph">&#%s;</pre><div class="name">%s</div></div>'%(_class, glyph.unicode, glyph.glyphname)
else:
print '<div class="font%s"><pre class="glyph blank-glyph"></pre><div class="name"></div></div>'%(_class)
font1 = fontforge.open("$1");
font2 = fontforge.open("$2");
glyphs1 = sorted(font1.glyphs(), key = lambda g: g.unicode)
glyphs2 = sorted(font2.glyphs(), key = lambda g: g.unicode)
while glyphs1 and glyphs2:
if glyphs1[0].unicode > glyphs2[0].unicode:
print_glyph(1, None)
print_glyph(2, glyphs2.pop(0))
elif glyphs1[0].unicode < glyphs2[0].unicode:
print_glyph(1, glyphs1.pop(0))
print_glyph(2, None)
else:
print_glyph(1, glyphs1.pop(0))
print_glyph(2, glyphs2.pop(0))
while glyphs1 or glyphs2:
print_glyph(1, glyphs1.pop(0) if glyphs1 else None)
print_glyph(2, glyphs2.pop(0) if glyphs2 else None)
EOF
cat >> "$OUTPUT" <<EOF
</body>
</html>
EOF