Ahem checker

import itertools import unicodedata from fontTools.ttLib import TTFont try: chr(0x100) except ValueError: chr = unichr def grouper(n, iterable): """ >>> list(grouper(3, 'ABCDEFG')) [['A', 'B', 'C'], ['D', 'E', 'F'], ['G']] """ iterable = iter(iterable) return iter(lambda: list(itertools.islice(iterable, n)), []) ttf = TTFont("../../../fonts/Ahem.ttf") chars = {char for table in ttf['cmap'].tables for char in table.cmap.keys()} # exclude chars that can't be represented as HTML numeric character refs chars = chars - (set(range(0x80, 0x9F+1)) | {0x00}) chars_sorted = sorted(chars) per_row = 17 doctype = "" title = "Ahem checker" style_open = """ " style_font_face = """ @font-face { font-family: Ahem; src: url("../../fonts/Ahem.ttf"); }""".strip() style_table_font_specified = """ table { font: 15px/1 Ahem; border-collapse: separate; border-spacing: 1px; table-layout: fixed; }""".strip() style_table_font_unspecified = """ table { font-size: 15px; line-height: 1; border-collapse: separate; border-spacing: 1px; table-layout: fixed; }""".strip() def build_header(is_test, rel, href): rv = [doctype, title] if rel != None and href != None: rv.append('' % (rel, href)) rv.append(style_open) if not is_test: if rel == None and href == None: # ahem-notref.html rv.append(style_table_font_unspecified) else: # ahem-ref.html rv.append(style_font_face) rv.append(style_table_font_specified) else: # ahem.html rv.append(style_table_font_specified) rv.append(style_close) return "\n".join(rv) def build_table(): rv = ["\n"] rv.append("\n") for row in grouper(per_row, chars_sorted): rv.append(" " * 4 + "\n") for codepoint in row: assert codepoint <= 0xFFFF try: name = unicodedata.name(chr(codepoint)) except ValueError: rv.append(" " * 8 + "

&#x%04X;x \n" % (codepoint, codepoint)) else: rv.append(" " * 8 + "

&#x%04X;x \n" % (codepoint, codepoint, name)) rv.append("

\n") return "".join(rv) cases = [ # file, is_test, rel ("../ahem.html", True, "match"), ("../ahem-ref.html", False, "mismatch"), ("../ahem-notref.html", False, None), ] table = build_table() for index, case in enumerate(cases): next_index = index + 1 file, is_test, rel = case href = cases[next_index][0][3:] if next_index < len(cases) else None header = build_header(is_test, rel, href) with open(file, "w") as file: file.write("%s%s" % (header, table))