705 lines
24 KiB
Python
705 lines
24 KiB
Python
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"""
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pygments.lexers.mojo
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~~~~~~~~~~~~~~~~~~~~
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Lexers for Mojo and related languages.
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:copyright: Copyright 2006-2024 by the Pygments team, see AUTHORS.
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:license: BSD, see LICENSE for details.
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"""
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import keyword
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from pygments import unistring as uni
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from pygments.lexer import (
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RegexLexer,
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bygroups,
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combined,
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default,
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include,
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this,
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using,
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words,
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)
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from pygments.token import (
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Comment,
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# Error,
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Keyword,
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Name,
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Number,
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Operator,
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Punctuation,
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String,
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Text,
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Whitespace,
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)
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from pygments.util import shebang_matches
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__all__ = ["MojoLexer"]
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class MojoLexer(RegexLexer):
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"""
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For Mojo source code (version 24.2.1).
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"""
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name = "Mojo"
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url = "https://docs.modular.com/mojo/"
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aliases = ["mojo", "🔥"]
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filenames = [
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"*.mojo",
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"*.🔥",
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]
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mimetypes = [
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"text/x-mojo",
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"application/x-mojo",
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]
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version_added = "2.18"
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uni_name = f"[{uni.xid_start}][{uni.xid_continue}]*"
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def innerstring_rules(ttype):
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return [
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# the old style '%s' % (...) string formatting (still valid in Py3)
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(
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r"%(\(\w+\))?[-#0 +]*([0-9]+|[*])?(\.([0-9]+|[*]))?"
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"[hlL]?[E-GXc-giorsaux%]",
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String.Interpol,
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),
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# the new style '{}'.format(...) string formatting
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(
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r"\{"
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r"((\w+)((\.\w+)|(\[[^\]]+\]))*)?" # field name
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r"(\![sra])?" # conversion
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r"(\:(.?[<>=\^])?[-+ ]?#?0?(\d+)?,?(\.\d+)?[E-GXb-gnosx%]?)?"
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r"\}",
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String.Interpol,
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),
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# backslashes, quotes and formatting signs must be parsed one at a time
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(r'[^\\\'"%{\n]+', ttype),
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(r'[\'"\\]', ttype),
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# unhandled string formatting sign
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(r"%|(\{{1,2})", ttype),
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# newlines are an error (use "nl" state)
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]
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def fstring_rules(ttype):
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return [
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# Assuming that a '}' is the closing brace after format specifier.
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# Sadly, this means that we won't detect syntax error. But it's
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# more important to parse correct syntax correctly, than to
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# highlight invalid syntax.
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(r"\}", String.Interpol),
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(r"\{", String.Interpol, "expr-inside-fstring"),
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# backslashes, quotes and formatting signs must be parsed one at a time
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(r'[^\\\'"{}\n]+', ttype),
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(r'[\'"\\]', ttype),
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# newlines are an error (use "nl" state)
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]
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tokens = {
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"root": [
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(r"\s+", Whitespace),
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(
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r'^(\s*)([rRuUbB]{,2})("""(?:.|\n)*?""")',
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bygroups(Whitespace, String.Affix, String.Doc),
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),
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(
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r"^(\s*)([rRuUbB]{,2})('''(?:.|\n)*?''')",
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bygroups(Whitespace, String.Affix, String.Doc),
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),
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(r"\A#!.+$", Comment.Hashbang),
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(r"#.*$", Comment.Single),
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(r"\\\n", Whitespace),
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(r"\\", Whitespace),
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include("keywords"),
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include("soft-keywords"),
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# In the original PR, all the below here used ((?:\s|\\\s)+) to
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# designate whitespace, but I can't find any example of this being
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# needed in the example file, so we're replacing it with `\s+`.
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(
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r"(alias)(\s+)",
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bygroups(Keyword, Whitespace),
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"varname", # TODO varname the right fit?
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),
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(r"(var)(\s+)", bygroups(Keyword, Whitespace), "varname"),
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(r"(def)(\s+)", bygroups(Keyword, Whitespace), "funcname"),
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(r"(fn)(\s+)", bygroups(Keyword, Whitespace), "funcname"),
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(
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r"(class)(\s+)",
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bygroups(Keyword, Whitespace),
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"classname",
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), # not implemented yet
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(r"(struct)(\s+)", bygroups(Keyword, Whitespace), "structname"),
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(r"(trait)(\s+)", bygroups(Keyword, Whitespace), "structname"),
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(r"(from)(\s+)", bygroups(Keyword.Namespace, Whitespace), "fromimport"),
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(r"(import)(\s+)", bygroups(Keyword.Namespace, Whitespace), "import"),
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include("expr"),
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],
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"expr": [
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# raw f-strings
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(
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'(?i)(rf|fr)(""")',
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bygroups(String.Affix, String.Double),
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combined("rfstringescape", "tdqf"),
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),
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(
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"(?i)(rf|fr)(''')",
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bygroups(String.Affix, String.Single),
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combined("rfstringescape", "tsqf"),
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),
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(
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'(?i)(rf|fr)(")',
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bygroups(String.Affix, String.Double),
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combined("rfstringescape", "dqf"),
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),
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(
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"(?i)(rf|fr)(')",
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bygroups(String.Affix, String.Single),
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combined("rfstringescape", "sqf"),
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),
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# non-raw f-strings
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(
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'([fF])(""")',
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bygroups(String.Affix, String.Double),
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combined("fstringescape", "tdqf"),
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),
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(
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"([fF])(''')",
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bygroups(String.Affix, String.Single),
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combined("fstringescape", "tsqf"),
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),
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(
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'([fF])(")',
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bygroups(String.Affix, String.Double),
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combined("fstringescape", "dqf"),
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),
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(
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"([fF])(')",
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bygroups(String.Affix, String.Single),
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combined("fstringescape", "sqf"),
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),
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# raw bytes and strings
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('(?i)(rb|br|r)(""")', bygroups(String.Affix, String.Double), "tdqs"),
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("(?i)(rb|br|r)(''')", bygroups(String.Affix, String.Single), "tsqs"),
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('(?i)(rb|br|r)(")', bygroups(String.Affix, String.Double), "dqs"),
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("(?i)(rb|br|r)(')", bygroups(String.Affix, String.Single), "sqs"),
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# non-raw strings
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(
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'([uU]?)(""")',
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bygroups(String.Affix, String.Double),
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combined("stringescape", "tdqs"),
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),
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(
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"([uU]?)(''')",
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bygroups(String.Affix, String.Single),
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combined("stringescape", "tsqs"),
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),
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(
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'([uU]?)(")',
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bygroups(String.Affix, String.Double),
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combined("stringescape", "dqs"),
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),
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(
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"([uU]?)(')",
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bygroups(String.Affix, String.Single),
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combined("stringescape", "sqs"),
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),
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# non-raw bytes
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(
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'([bB])(""")',
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bygroups(String.Affix, String.Double),
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combined("bytesescape", "tdqs"),
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),
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(
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"([bB])(''')",
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bygroups(String.Affix, String.Single),
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combined("bytesescape", "tsqs"),
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),
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|
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(
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'([bB])(")',
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bygroups(String.Affix, String.Double),
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combined("bytesescape", "dqs"),
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),
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|
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(
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"([bB])(')",
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bygroups(String.Affix, String.Single),
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combined("bytesescape", "sqs"),
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),
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(r"[^\S\n]+", Text),
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include("numbers"),
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(r"!=|==|<<|>>|:=|[-~+/*%=<>&^|.]", Operator),
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(r"([]{}:\(\),;[])+", Punctuation),
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(r"(in|is|and|or|not)\b", Operator.Word),
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include("expr-keywords"),
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include("builtins"),
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include("magicfuncs"),
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include("magicvars"),
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include("name"),
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],
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"expr-inside-fstring": [
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(r"[{([]", Punctuation, "expr-inside-fstring-inner"),
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# without format specifier
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(
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r"(=\s*)?" # debug (https://bugs.python.org/issue36817)
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r"(\![sraf])?" # conversion
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r"\}",
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String.Interpol,
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"#pop",
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),
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# with format specifier
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# we'll catch the remaining '}' in the outer scope
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(
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r"(=\s*)?" # debug (https://bugs.python.org/issue36817)
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r"(\![sraf])?" # conversion
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r":",
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|
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String.Interpol,
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"#pop",
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),
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(r"\s+", Whitespace), # allow new lines
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include("expr"),
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],
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"expr-inside-fstring-inner": [
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(r"[{([]", Punctuation, "expr-inside-fstring-inner"),
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(r"[])}]", Punctuation, "#pop"),
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(r"\s+", Whitespace), # allow new lines
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include("expr"),
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],
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"expr-keywords": [
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# Based on https://docs.python.org/3/reference/expressions.html
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(
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words(
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(
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"async for", # TODO https://docs.modular.com/mojo/roadmap#no-async-for-or-async-with
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"async with", # TODO https://docs.modular.com/mojo/roadmap#no-async-for-or-async-with
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|
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"await",
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"else",
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"for",
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"if",
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"lambda",
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|
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"yield",
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"yield from",
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),
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suffix=r"\b",
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),
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Keyword,
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),
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(words(("True", "False", "None"), suffix=r"\b"), Keyword.Constant),
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],
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"keywords": [
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|
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(
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words(
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|
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(
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"assert",
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"async",
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|
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"await",
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"borrowed",
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"break",
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"continue",
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|
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"del",
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"elif",
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"else",
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"except",
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|
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"finally",
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|
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"for",
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"global",
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"if",
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"lambda",
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|
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"pass",
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|
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"raise",
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|
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"nonlocal",
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|
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"return",
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|
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"try",
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|
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"while",
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|
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"yield",
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|
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"yield from",
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|
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"as",
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|
|
"with",
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|
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),
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suffix=r"\b",
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|
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),
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|
|
Keyword,
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|
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),
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|
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(words(("True", "False", "None"), suffix=r"\b"), Keyword.Constant),
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|
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],
|
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|
|
"soft-keywords": [
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|
|
# `match`, `case` and `_` soft keywords
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||
|
|
(
|
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|
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r"(^[ \t]*)" # at beginning of line + possible indentation
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||
|
|
r"(match|case)\b" # a possible keyword
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||
|
|
r"(?![ \t]*(?:" # not followed by...
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||
|
|
r"[:,;=^&|@~)\]}]|(?:" + # characters and keywords that mean this isn't
|
||
|
|
# pattern matching (but None/True/False is ok)
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||
|
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r"|".join(k for k in keyword.kwlist if k[0].islower())
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|
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+ r")\b))",
|
||
|
|
bygroups(Whitespace, Keyword),
|
||
|
|
"soft-keywords-inner",
|
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|
|
),
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||
|
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],
|
||
|
|
"soft-keywords-inner": [
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|
|
# optional `_` keyword
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||
|
|
(r"(\s+)([^\n_]*)(_\b)", bygroups(Whitespace, using(this), Keyword)),
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||
|
|
default("#pop"),
|
||
|
|
],
|
||
|
|
"builtins": [
|
||
|
|
(
|
||
|
|
words(
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||
|
|
(
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|
|
"__import__",
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||
|
|
"abs",
|
||
|
|
"aiter",
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||
|
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"all",
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||
|
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"any",
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||
|
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"bin",
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||
|
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"bool",
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||
|
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"bytearray",
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||
|
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"breakpoint",
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|
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"bytes",
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|
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"callable",
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|
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"chr",
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|
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"classmethod",
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|
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"compile",
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|
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"complex",
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|
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"delattr",
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|
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"dict",
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|
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"dir",
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|
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"divmod",
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|
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"enumerate",
|
||
|
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"eval",
|
||
|
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"filter",
|
||
|
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"float",
|
||
|
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"format",
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|
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"frozenset",
|
||
|
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"getattr",
|
||
|
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"globals",
|
||
|
|
"hasattr",
|
||
|
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"hash",
|
||
|
|
"hex",
|
||
|
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"id",
|
||
|
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"input",
|
||
|
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"int",
|
||
|
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"isinstance",
|
||
|
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"issubclass",
|
||
|
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"iter",
|
||
|
|
"len",
|
||
|
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"list",
|
||
|
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"locals",
|
||
|
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"map",
|
||
|
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"max",
|
||
|
|
"memoryview",
|
||
|
|
"min",
|
||
|
|
"next",
|
||
|
|
"object",
|
||
|
|
"oct",
|
||
|
|
"open",
|
||
|
|
"ord",
|
||
|
|
"pow",
|
||
|
|
"print",
|
||
|
|
"property",
|
||
|
|
"range",
|
||
|
|
"repr",
|
||
|
|
"reversed",
|
||
|
|
"round",
|
||
|
|
"set",
|
||
|
|
"setattr",
|
||
|
|
"slice",
|
||
|
|
"sorted",
|
||
|
|
"staticmethod",
|
||
|
|
"str",
|
||
|
|
"sum",
|
||
|
|
"super",
|
||
|
|
"tuple",
|
||
|
|
"type",
|
||
|
|
"vars",
|
||
|
|
"zip",
|
||
|
|
# Mojo builtin types: https://docs.modular.com/mojo/stdlib/builtin/
|
||
|
|
"AnyType",
|
||
|
|
"Coroutine",
|
||
|
|
"DType",
|
||
|
|
"Error",
|
||
|
|
"Int",
|
||
|
|
"List",
|
||
|
|
"ListLiteral",
|
||
|
|
"Scalar",
|
||
|
|
"Int8",
|
||
|
|
"UInt8",
|
||
|
|
"Int16",
|
||
|
|
"UInt16",
|
||
|
|
"Int32",
|
||
|
|
"UInt32",
|
||
|
|
"Int64",
|
||
|
|
"UInt64",
|
||
|
|
"BFloat16",
|
||
|
|
"Float16",
|
||
|
|
"Float32",
|
||
|
|
"Float64",
|
||
|
|
"SIMD",
|
||
|
|
"String",
|
||
|
|
"Tensor",
|
||
|
|
"Tuple",
|
||
|
|
"Movable",
|
||
|
|
"Copyable",
|
||
|
|
"CollectionElement",
|
||
|
|
),
|
||
|
|
prefix=r"(?<!\.)",
|
||
|
|
suffix=r"\b",
|
||
|
|
),
|
||
|
|
Name.Builtin,
|
||
|
|
),
|
||
|
|
(r"(?<!\.)(self|Ellipsis|NotImplemented|cls)\b", Name.Builtin.Pseudo),
|
||
|
|
(
|
||
|
|
words(
|
||
|
|
("Error",),
|
||
|
|
prefix=r"(?<!\.)",
|
||
|
|
suffix=r"\b",
|
||
|
|
),
|
||
|
|
Name.Exception,
|
||
|
|
),
|
||
|
|
],
|
||
|
|
"magicfuncs": [
|
||
|
|
(
|
||
|
|
words(
|
||
|
|
(
|
||
|
|
"__abs__",
|
||
|
|
"__add__",
|
||
|
|
"__aenter__",
|
||
|
|
"__aexit__",
|
||
|
|
"__aiter__",
|
||
|
|
"__and__",
|
||
|
|
"__anext__",
|
||
|
|
"__await__",
|
||
|
|
"__bool__",
|
||
|
|
"__bytes__",
|
||
|
|
"__call__",
|
||
|
|
"__complex__",
|
||
|
|
"__contains__",
|
||
|
|
"__del__",
|
||
|
|
"__delattr__",
|
||
|
|
"__delete__",
|
||
|
|
"__delitem__",
|
||
|
|
"__dir__",
|
||
|
|
"__divmod__",
|
||
|
|
"__enter__",
|
||
|
|
"__eq__",
|
||
|
|
"__exit__",
|
||
|
|
"__float__",
|
||
|
|
"__floordiv__",
|
||
|
|
"__format__",
|
||
|
|
"__ge__",
|
||
|
|
"__get__",
|
||
|
|
"__getattr__",
|
||
|
|
"__getattribute__",
|
||
|
|
"__getitem__",
|
||
|
|
"__gt__",
|
||
|
|
"__hash__",
|
||
|
|
"__iadd__",
|
||
|
|
"__iand__",
|
||
|
|
"__ifloordiv__",
|
||
|
|
"__ilshift__",
|
||
|
|
"__imatmul__",
|
||
|
|
"__imod__",
|
||
|
|
"__imul__",
|
||
|
|
"__index__",
|
||
|
|
"__init__",
|
||
|
|
"__instancecheck__",
|
||
|
|
"__int__",
|
||
|
|
"__invert__",
|
||
|
|
"__ior__",
|
||
|
|
"__ipow__",
|
||
|
|
"__irshift__",
|
||
|
|
"__isub__",
|
||
|
|
"__iter__",
|
||
|
|
"__itruediv__",
|
||
|
|
"__ixor__",
|
||
|
|
"__le__",
|
||
|
|
"__len__",
|
||
|
|
"__length_hint__",
|
||
|
|
"__lshift__",
|
||
|
|
"__lt__",
|
||
|
|
"__matmul__",
|
||
|
|
"__missing__",
|
||
|
|
"__mod__",
|
||
|
|
"__mul__",
|
||
|
|
"__ne__",
|
||
|
|
"__neg__",
|
||
|
|
"__new__",
|
||
|
|
"__next__",
|
||
|
|
"__or__",
|
||
|
|
"__pos__",
|
||
|
|
"__pow__",
|
||
|
|
"__prepare__",
|
||
|
|
"__radd__",
|
||
|
|
"__rand__",
|
||
|
|
"__rdivmod__",
|
||
|
|
"__repr__",
|
||
|
|
"__reversed__",
|
||
|
|
"__rfloordiv__",
|
||
|
|
"__rlshift__",
|
||
|
|
"__rmatmul__",
|
||
|
|
"__rmod__",
|
||
|
|
"__rmul__",
|
||
|
|
"__ror__",
|
||
|
|
"__round__",
|
||
|
|
"__rpow__",
|
||
|
|
"__rrshift__",
|
||
|
|
"__rshift__",
|
||
|
|
"__rsub__",
|
||
|
|
"__rtruediv__",
|
||
|
|
"__rxor__",
|
||
|
|
"__set__",
|
||
|
|
"__setattr__",
|
||
|
|
"__setitem__",
|
||
|
|
"__str__",
|
||
|
|
"__sub__",
|
||
|
|
"__subclasscheck__",
|
||
|
|
"__truediv__",
|
||
|
|
"__xor__",
|
||
|
|
),
|
||
|
|
suffix=r"\b",
|
||
|
|
),
|
||
|
|
Name.Function.Magic,
|
||
|
|
),
|
||
|
|
],
|
||
|
|
"magicvars": [
|
||
|
|
(
|
||
|
|
words(
|
||
|
|
(
|
||
|
|
"__annotations__",
|
||
|
|
"__bases__",
|
||
|
|
"__class__",
|
||
|
|
"__closure__",
|
||
|
|
"__code__",
|
||
|
|
"__defaults__",
|
||
|
|
"__dict__",
|
||
|
|
"__doc__",
|
||
|
|
"__file__",
|
||
|
|
"__func__",
|
||
|
|
"__globals__",
|
||
|
|
"__kwdefaults__",
|
||
|
|
"__module__",
|
||
|
|
"__mro__",
|
||
|
|
"__name__",
|
||
|
|
"__objclass__",
|
||
|
|
"__qualname__",
|
||
|
|
"__self__",
|
||
|
|
"__slots__",
|
||
|
|
"__weakref__",
|
||
|
|
),
|
||
|
|
suffix=r"\b",
|
||
|
|
),
|
||
|
|
Name.Variable.Magic,
|
||
|
|
),
|
||
|
|
],
|
||
|
|
"numbers": [
|
||
|
|
(
|
||
|
|
r"(\d(?:_?\d)*\.(?:\d(?:_?\d)*)?|(?:\d(?:_?\d)*)?\.\d(?:_?\d)*)"
|
||
|
|
r"([eE][+-]?\d(?:_?\d)*)?",
|
||
|
|
Number.Float,
|
||
|
|
),
|
||
|
|
(r"\d(?:_?\d)*[eE][+-]?\d(?:_?\d)*j?", Number.Float),
|
||
|
|
(r"0[oO](?:_?[0-7])+", Number.Oct),
|
||
|
|
(r"0[bB](?:_?[01])+", Number.Bin),
|
||
|
|
(r"0[xX](?:_?[a-fA-F0-9])+", Number.Hex),
|
||
|
|
(r"\d(?:_?\d)*", Number.Integer),
|
||
|
|
],
|
||
|
|
"name": [
|
||
|
|
(r"@" + uni_name, Name.Decorator),
|
||
|
|
(r"@", Operator), # new matrix multiplication operator
|
||
|
|
(uni_name, Name),
|
||
|
|
],
|
||
|
|
"varname": [
|
||
|
|
(uni_name, Name.Variable, "#pop"),
|
||
|
|
],
|
||
|
|
"funcname": [
|
||
|
|
include("magicfuncs"),
|
||
|
|
(uni_name, Name.Function, "#pop"),
|
||
|
|
default("#pop"),
|
||
|
|
],
|
||
|
|
"classname": [
|
||
|
|
(uni_name, Name.Class, "#pop"),
|
||
|
|
],
|
||
|
|
"structname": [
|
||
|
|
(uni_name, Name.Struct, "#pop"),
|
||
|
|
],
|
||
|
|
"import": [
|
||
|
|
(r"(\s+)(as)(\s+)", bygroups(Whitespace, Keyword, Whitespace)),
|
||
|
|
(r"\.", Name.Namespace),
|
||
|
|
(uni_name, Name.Namespace),
|
||
|
|
(r"(\s*)(,)(\s*)", bygroups(Whitespace, Operator, Whitespace)),
|
||
|
|
default("#pop"), # all else: go back
|
||
|
|
],
|
||
|
|
"fromimport": [
|
||
|
|
(r"(\s+)(import)\b", bygroups(Whitespace, Keyword.Namespace), "#pop"),
|
||
|
|
(r"\.", Name.Namespace),
|
||
|
|
# if None occurs here, it's "raise x from None", since None can
|
||
|
|
# never be a module name
|
||
|
|
(r"None\b", Keyword.Constant, "#pop"),
|
||
|
|
(uni_name, Name.Namespace),
|
||
|
|
default("#pop"),
|
||
|
|
],
|
||
|
|
"rfstringescape": [
|
||
|
|
(r"\{\{", String.Escape),
|
||
|
|
(r"\}\}", String.Escape),
|
||
|
|
],
|
||
|
|
"fstringescape": [
|
||
|
|
include("rfstringescape"),
|
||
|
|
include("stringescape"),
|
||
|
|
],
|
||
|
|
"bytesescape": [
|
||
|
|
(r'\\([\\abfnrtv"\']|\n|x[a-fA-F0-9]{2}|[0-7]{1,3})', String.Escape)
|
||
|
|
],
|
||
|
|
"stringescape": [
|
||
|
|
(r"\\(N\{.*?\}|u[a-fA-F0-9]{4}|U[a-fA-F0-9]{8})", String.Escape),
|
||
|
|
include("bytesescape"),
|
||
|
|
],
|
||
|
|
"fstrings-single": fstring_rules(String.Single),
|
||
|
|
"fstrings-double": fstring_rules(String.Double),
|
||
|
|
"strings-single": innerstring_rules(String.Single),
|
||
|
|
"strings-double": innerstring_rules(String.Double),
|
||
|
|
"dqf": [
|
||
|
|
(r'"', String.Double, "#pop"),
|
||
|
|
(r'\\\\|\\"|\\\n', String.Escape), # included here for raw strings
|
||
|
|
include("fstrings-double"),
|
||
|
|
],
|
||
|
|
"sqf": [
|
||
|
|
(r"'", String.Single, "#pop"),
|
||
|
|
(r"\\\\|\\'|\\\n", String.Escape), # included here for raw strings
|
||
|
|
include("fstrings-single"),
|
||
|
|
],
|
||
|
|
"dqs": [
|
||
|
|
(r'"', String.Double, "#pop"),
|
||
|
|
(r'\\\\|\\"|\\\n', String.Escape), # included here for raw strings
|
||
|
|
include("strings-double"),
|
||
|
|
],
|
||
|
|
"sqs": [
|
||
|
|
(r"'", String.Single, "#pop"),
|
||
|
|
(r"\\\\|\\'|\\\n", String.Escape), # included here for raw strings
|
||
|
|
include("strings-single"),
|
||
|
|
],
|
||
|
|
"tdqf": [
|
||
|
|
(r'"""', String.Double, "#pop"),
|
||
|
|
include("fstrings-double"),
|
||
|
|
(r"\n", String.Double),
|
||
|
|
],
|
||
|
|
"tsqf": [
|
||
|
|
(r"'''", String.Single, "#pop"),
|
||
|
|
include("fstrings-single"),
|
||
|
|
(r"\n", String.Single),
|
||
|
|
],
|
||
|
|
"tdqs": [
|
||
|
|
(r'"""', String.Double, "#pop"),
|
||
|
|
include("strings-double"),
|
||
|
|
(r"\n", String.Double),
|
||
|
|
],
|
||
|
|
"tsqs": [
|
||
|
|
(r"'''", String.Single, "#pop"),
|
||
|
|
include("strings-single"),
|
||
|
|
(r"\n", String.Single),
|
||
|
|
],
|
||
|
|
}
|
||
|
|
|
||
|
|
def analyse_text(text):
|
||
|
|
return (
|
||
|
|
shebang_matches(text, r"mojo?") or "import " in text[:1000]
|
||
|
|
) # TODO supported?
|