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TOML lexer: Support TOML 1.1.0 #3027

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Merged
birkenfeld merged 2 commits into from
Feb 20, 2026
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TOML lexer: Support TOML 1.1.0 #3027

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4cbbbcd
TOML lexer: Support TOML 1.1.1
encukou Jan 30, 2026
d14236d
It's TOML 1.1.0, not 1.1.1
encukou Jan 30, 2026
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1 change: 1 addition & 0 deletions CHANGES
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Original file line number Diff line number Diff line change
Expand Up @@ -16,6 +16,7 @@ Version 2.20.0
* LESS: Support single-line comments (#3005)
* LilyPond: Update to 2.25.29 (#2974)
* Python: Add ``t``-string support (#3009, #3010)
* TOML: Support TOML 1.1.0 (#3026)

- Drop Python 3.8, and add Python 3.14 as a supported version (#2987, #3012)

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10 changes: 5 additions & 5 deletions pygments/lexers/configs.py
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Expand Up @@ -1127,7 +1127,7 @@ class TOMLLexer(RegexLexer):
# Based on the TOML spec: https://toml.io/en/v1.0.0

# The following is adapted from CPython's tomllib:
_time = r"\d\d:\d\d:\d\d(\.\d+)?"
_time = r"\d\d:\d\d(:\d\d(\.\d+)?)?"
_datetime = rf"""(?x)
\d\d\d\d-\d\d-\d\d # date, e.g., 1988-10-27
(
Expand Down Expand Up @@ -1238,9 +1238,9 @@ class TOMLLexer(RegexLexer):
default('value'),
],
'inline-table': [
# Note that unlike inline arrays, inline tables do not
# allow newlines or comments.
(r'[ \t]+', Whitespace),
# Whitespace (since TOML 1.1.0, same as in array)
(r'\s+', Whitespace),
(r'#.*', Comment.Single),

# Keys
include('key'),
Expand Down Expand Up @@ -1275,7 +1275,7 @@ class TOMLLexer(RegexLexer):
(r"'", String.Single),
],
'escapes': [
(r'\\u[0-9a-fA-F]{4}|\\U[0-9a-fA-F]{8}', String.Escape),
(r'\\x[0-9a-fA-F]{2}|\\u[0-9a-fA-F]{4}|\\U[0-9a-fA-F]{8}', String.Escape),
(r'\\.', String.Escape),
],
}
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93 changes: 93 additions & 0 deletions tests/snippets/toml/toml-1.1.0.txt
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@@ -0,0 +1,93 @@
---input---
["toml 1.1.0 features"]
tbl = {
key = "a string",
moar-tbl = {
key = 1,
},
}

null = "null byte: \x00; letter a: \x61"
csi = "\e["

dt = 2010-02-03 14:15
t = 14:15

---tokens---
'[' Keyword
'"' Literal.String.Double
'toml 1.1.0 features' Literal.String.Double
'"' Literal.String.Double
']' Keyword
'\n' Text.Whitespace

'tbl' Name
' ' Text.Whitespace
'=' Operator
' ' Text.Whitespace
'{' Punctuation
'\n ' Text.Whitespace
'key' Name
' ' Text.Whitespace
'=' Punctuation
' ' Text.Whitespace
'"' Literal.String.Double
'a string' Literal.String.Double
'"' Literal.String.Double
',' Punctuation
'\n ' Text.Whitespace
'moar-tbl' Name
' ' Text.Whitespace
'=' Punctuation
' ' Text.Whitespace
'{' Punctuation
'\n ' Text.Whitespace
'key' Name
' ' Text.Whitespace
'=' Punctuation
' ' Text.Whitespace
'1' Literal.Number.Integer
',' Punctuation
'\n ' Text.Whitespace
'}' Punctuation
',' Punctuation
'\n' Text.Whitespace

'}' Punctuation
'\n\n' Text.Whitespace

'null' Name
' ' Text.Whitespace
'=' Operator
' ' Text.Whitespace
'"' Literal.String.Double
'null byte: ' Literal.String.Double
'\\x00' Literal.String.Escape
'; letter a: ' Literal.String.Double
'\\x61' Literal.String.Escape
'"' Literal.String.Double
'\n' Text.Whitespace

'csi' Name
' ' Text.Whitespace
'=' Operator
' ' Text.Whitespace
'"' Literal.String.Double
'\\e' Literal.String.Escape
'[' Literal.String.Double
'"' Literal.String.Double
'\n\n' Text.Whitespace

'dt' Name
' ' Text.Whitespace
'=' Operator
' ' Text.Whitespace
'2010-02-03 14:15' Literal.Date
'\n' Text.Whitespace

't' Name
' ' Text.Whitespace
'=' Operator
' ' Text.Whitespace
'14:15' Literal.Date
'\n' Text.Whitespace