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Data generation improvements #20

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Merged
drott merged 2 commits into from
May 4, 2026
Merged

Data generation improvements #20

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6093106
Throw on unparseable test data lines
drott May 4, 2026
459cac9
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drott May 4, 2026
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77 changes: 53 additions & 24 deletions emoji_test_data.py
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Original file line number Diff line number Diff line change
Expand Up @@ -4,26 +4,44 @@
# VERSION1 is required for set operations like intersection (&&); the default is VERSION0.
regex.DEFAULT_VERSION = regex.VERSION1


def get_emoji_segmentation_category(cp):
if cp == 0x20E3: return 'COMBINING_ENCLOSING_KEYCAP'
if cp == 0x20E0: return 'COMBINING_ENCLOSING_CIRCLE_BACKSLASH'
if cp == 0x200D: return 'ZWJ'
if cp == 0xFE0E: return 'VS15'
if cp == 0xFE0F: return 'VS16'
if cp == 0x1F3F4: return 'TAG_BASE'
if 0xE0020 <= cp <= 0xE007E: return 'TAG_SEQUENCE'
if cp == 0xE007F: return 'TAG_TERM'
if cp == 0x20E3:
return "COMBINING_ENCLOSING_KEYCAP"
if cp == 0x20E0:
return "COMBINING_ENCLOSING_CIRCLE_BACKSLASH"
if cp == 0x200D:
return "ZWJ"
if cp == 0xFE0E:
return "VS15"
if cp == 0xFE0F:
return "VS16"
if cp == 0x1F3F4:
return "TAG_BASE"
if 0xE0020 <= cp <= 0xE007E:
return "TAG_SEQUENCE"
if cp == 0xE007F:
return "TAG_TERM"
c = chr(cp)
if regex.match(r'[[\p{Emoji_Modifier_Base}]&&[\P{Emoji_Presentation}]]', c): return 'EMOJI_MODIFIER_BASE_TEXT'
if regex.match(r'[[\p{Emoji_Modifier_Base}]&&[\p{Emoji_Presentation}]]', c): return 'EMOJI_MODIFIER_BASE_EMOJI'
if regex.match(r'\p{Emoji_Modifier}', c): return 'EMOJI_MODIFIER'
if regex.match(r'\p{Regional_Indicator}', c): return 'REGIONAL_INDICATOR'
if regex.match(r'[0-9*#]', c): return 'KEYCAP_BASE'
if regex.match(r'\p{Emoji_Presentation}', c): return 'EMOJI_EMOJI_PRESENTATION'
if regex.match(r'[[\p{Emoji}]&&[\P{Emoji_Presentation}]]', c): return 'EMOJI_TEXT_PRESENTATION'
return '0x0000'

TestUnitRx = regex.compile(r"""
if regex.match(r"[[\p{Emoji_Modifier_Base}]&&[\P{Emoji_Presentation}]]", c):
return "EMOJI_MODIFIER_BASE_TEXT"
if regex.match(r"[[\p{Emoji_Modifier_Base}]&&[\p{Emoji_Presentation}]]", c):
return "EMOJI_MODIFIER_BASE_EMOJI"
if regex.match(r"\p{Emoji_Modifier}", c):
return "EMOJI_MODIFIER"
if regex.match(r"\p{Regional_Indicator}", c):
return "REGIONAL_INDICATOR"
if regex.match(r"[0-9*#]", c):
return "KEYCAP_BASE"
if regex.match(r"\p{Emoji_Presentation}", c):
return "EMOJI_EMOJI_PRESENTATION"
if regex.match(r"[[\p{Emoji}]&&[\P{Emoji_Presentation}]]", c):
return "EMOJI_TEXT_PRESENTATION"
return "0x0000"


TestUnitRx = regex.compile(
r"""
(?(DEFINE)
(?<CodePoint> [0-9A-F]{4,6} )
(?<CodePointSequence> (?&CodePoint) (?: \s (?&CodePoint))* )
Expand All @@ -35,16 +53,25 @@ def get_emoji_segmentation_category(cp):
[;] \s* (?<has_vs> (?&Boolean))
[;] \s* (?<description> [^;]*)
\z
""", regex.X)
""",
regex.X,
)


def write_test_data():
for line in DATA.strip().splitlines():
m = TestUnitRx.match(line)
if not m: continue
seq = [int(x, 16) for x in m.group('sequence').split()]
if not m:
if line and not line.startswith("#"):
raise ValueError(f"Could not parse test unit: {line!r}")
continue
seq = [int(x, 16) for x in m.group("sequence").split()]
cats = [get_emoji_segmentation_category(cp) for cp in seq]
fmt_seq = "\n ".join(f"{f'0x{cp:04X},':<8} // {unicodedata.name(chr(cp))}" for cp in seq)
print(f"""{{
fmt_seq = "\n ".join(
f"{f'0x{cp:04X},':<8} // {unicodedata.name(chr(cp))}" for cp in seq
)
print(
f"""{{
.description = "{m.group('description')}; Encoded: {"".join(chr(cp) for cp in seq)}",
.sequence = {{
{fmt_seq}
Expand All @@ -55,7 +82,9 @@ def write_test_data():
.length = {len(seq)},
.is_emoji = {m.group('is_emoji')},
.has_vs = {m.group('has_vs')}
}},""")
}},"""
)


DATA = """
# sequence;is_emoji;has_vs;description
Expand Down