Daniel Bedeleanu
ea49cd6e4a
- Create backend/services/image_storage.py with 4 core functions:
- sanitize_filename(): remove unsafe chars, limit to 255 chars, convert to lowercase
- get_unique_filename(): handle collisions with UUID suffix (format: {name}_{uuid8}_{variant}.jpg)
- ensure_image_directories(): create /images/ root and category subdirs on startup
- save_image(): save bytes to /images/{category}/{filename}, returns relative path
- Create comprehensive test suite (22 tests) covering all functionality
- Integrate ensure_image_directories() into FastAPI startup event
- Directory structure: /images/{category}/{filename}
- Collision handling: auto-suffix with UUID if filename exists
- All tests passing, pathlib.Path for safe operations
260 lines
9.7 KiB
Python
260 lines
9.7 KiB
Python
"""
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pygments.lexers.d
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~~~~~~~~~~~~~~~~~
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Lexers for D languages.
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:copyright: Copyright 2006-present by the Pygments team, see AUTHORS.
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:license: BSD, see LICENSE for details.
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"""
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from pygments.lexer import RegexLexer, include, words, bygroups
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from pygments.token import Comment, Keyword, Name, String, Number, \
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Punctuation, Whitespace
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__all__ = ['DLexer', 'CrocLexer', 'MiniDLexer']
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class DLexer(RegexLexer):
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"""
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For D source.
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"""
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name = 'D'
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url = 'https://dlang.org/'
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filenames = ['*.d', '*.di']
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aliases = ['d']
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mimetypes = ['text/x-dsrc']
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version_added = '1.2'
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tokens = {
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'root': [
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(r'\n', Whitespace),
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(r'\s+', Whitespace),
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# (r'\\\n', Text), # line continuations
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# Comments
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(r'(//.*?)(\n)', bygroups(Comment.Single, Whitespace)),
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(r'/(\\\n)?[*](.|\n)*?[*](\\\n)?/', Comment.Multiline),
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(r'/\+', Comment.Multiline, 'nested_comment'),
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# Keywords
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(words((
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'abstract', 'alias', 'align', 'asm', 'assert', 'auto', 'body',
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'break', 'case', 'cast', 'catch', 'class', 'const', 'continue',
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'debug', 'default', 'delegate', 'delete', 'deprecated', 'do', 'else',
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'enum', 'export', 'extern', 'finally', 'final', 'foreach_reverse',
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'foreach', 'for', 'function', 'goto', 'if', 'immutable', 'import',
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'interface', 'invariant', 'inout', 'in', 'is', 'lazy', 'mixin',
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'module', 'new', 'nothrow', 'out', 'override', 'package', 'pragma',
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'private', 'protected', 'public', 'pure', 'ref', 'return', 'scope',
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'shared', 'static', 'struct', 'super', 'switch', 'synchronized',
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'template', 'this', 'throw', 'try', 'typeid', 'typeof',
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'union', 'unittest', 'version', 'volatile', 'while', 'with',
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'__gshared', '__traits', '__vector', '__parameters'),
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suffix=r'\b'),
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Keyword),
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(words((
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# Removed in 2.072
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'typedef', ),
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suffix=r'\b'),
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Keyword.Removed),
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(words((
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'bool', 'byte', 'cdouble', 'cent', 'cfloat', 'char', 'creal',
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'dchar', 'double', 'float', 'idouble', 'ifloat', 'int', 'ireal',
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'long', 'real', 'short', 'ubyte', 'ucent', 'uint', 'ulong',
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'ushort', 'void', 'wchar'), suffix=r'\b'),
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Keyword.Type),
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(r'(false|true|null)\b', Keyword.Constant),
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(words((
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'__FILE__', '__FILE_FULL_PATH__', '__MODULE__', '__LINE__', '__FUNCTION__',
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'__PRETTY_FUNCTION__', '__DATE__', '__EOF__', '__TIME__', '__TIMESTAMP__',
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'__VENDOR__', '__VERSION__'), suffix=r'\b'),
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Keyword.Pseudo),
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(r'macro\b', Keyword.Reserved),
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(r'(string|wstring|dstring|size_t|ptrdiff_t)\b', Name.Builtin),
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# FloatLiteral
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# -- HexFloat
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(r'0[xX]([0-9a-fA-F_]*\.[0-9a-fA-F_]+|[0-9a-fA-F_]+)'
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r'[pP][+\-]?[0-9_]+[fFL]?[i]?', Number.Float),
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# -- DecimalFloat
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(r'[0-9_]+(\.[0-9_]+[eE][+\-]?[0-9_]+|'
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r'\.[0-9_]*|[eE][+\-]?[0-9_]+)[fFL]?[i]?', Number.Float),
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(r'\.(0|[1-9][0-9_]*)([eE][+\-]?[0-9_]+)?[fFL]?[i]?', Number.Float),
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# IntegerLiteral
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# -- Binary
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(r'0[Bb][01_]+', Number.Bin),
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# -- Octal
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(r'0[0-7_]+', Number.Oct),
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# -- Hexadecimal
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(r'0[xX][0-9a-fA-F_]+', Number.Hex),
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# -- Decimal
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(r'(0|[1-9][0-9_]*)([LUu]|Lu|LU|uL|UL)?', Number.Integer),
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# CharacterLiteral
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(r"""'(\\['"?\\abfnrtv]|\\x[0-9a-fA-F]{2}|\\[0-7]{1,3}"""
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r"""|\\u[0-9a-fA-F]{4}|\\U[0-9a-fA-F]{8}|\\&\w+;|.)'""",
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String.Char),
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# StringLiteral
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# -- WysiwygString
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(r'r"[^"]*"[cwd]?', String),
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# -- AlternateWysiwygString
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(r'`[^`]*`[cwd]?', String),
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# -- DoubleQuotedString
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(r'"(\\\\|\\[^\\]|[^"\\])*"[cwd]?', String),
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# -- EscapeSequence
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(r"\\(['\"?\\abfnrtv]|x[0-9a-fA-F]{2}|[0-7]{1,3}"
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r"|u[0-9a-fA-F]{4}|U[0-9a-fA-F]{8}|&\w+;)",
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String),
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# -- HexString
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(r'x"[0-9a-fA-F_\s]*"[cwd]?', String),
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# -- DelimitedString
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(r'q"\[', String, 'delimited_bracket'),
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(r'q"\(', String, 'delimited_parenthesis'),
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(r'q"<', String, 'delimited_angle'),
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(r'q"\{', String, 'delimited_curly'),
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(r'q"([a-zA-Z_]\w*)\n.*?\n\1"', String),
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(r'q"(.).*?\1"', String),
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# -- TokenString
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(r'q\{', String, 'token_string'),
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# Attributes
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(r'@([a-zA-Z_]\w*)?', Name.Decorator),
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# Tokens
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(r'(~=|\^=|%=|\*=|==|!>=|!<=|!<>=|!<>|!<|!>|!=|>>>=|>>>|>>=|>>|>='
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r'|<>=|<>|<<=|<<|<=|\+\+|\+=|--|-=|\|\||\|=|&&|&=|\.\.\.|\.\.|/=)'
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r'|[/.&|\-+<>!()\[\]{}?,;:$=*%^~]', Punctuation),
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# Identifier
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(r'[a-zA-Z_]\w*', Name),
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# Line
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(r'(#line)(\s)(.*)(\n)', bygroups(Comment.Special, Whitespace,
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Comment.Special, Whitespace)),
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],
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'nested_comment': [
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(r'[^+/]+', Comment.Multiline),
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(r'/\+', Comment.Multiline, '#push'),
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(r'\+/', Comment.Multiline, '#pop'),
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(r'[+/]', Comment.Multiline),
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],
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'token_string': [
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(r'\{', Punctuation, 'token_string_nest'),
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(r'\}', String, '#pop'),
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include('root'),
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],
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'token_string_nest': [
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(r'\{', Punctuation, '#push'),
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(r'\}', Punctuation, '#pop'),
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include('root'),
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],
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'delimited_bracket': [
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(r'[^\[\]]+', String),
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(r'\[', String, 'delimited_inside_bracket'),
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(r'\]"', String, '#pop'),
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],
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'delimited_inside_bracket': [
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(r'[^\[\]]+', String),
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(r'\[', String, '#push'),
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(r'\]', String, '#pop'),
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],
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'delimited_parenthesis': [
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(r'[^()]+', String),
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(r'\(', String, 'delimited_inside_parenthesis'),
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(r'\)"', String, '#pop'),
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],
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'delimited_inside_parenthesis': [
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(r'[^()]+', String),
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(r'\(', String, '#push'),
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(r'\)', String, '#pop'),
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],
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'delimited_angle': [
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(r'[^<>]+', String),
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(r'<', String, 'delimited_inside_angle'),
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(r'>"', String, '#pop'),
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],
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'delimited_inside_angle': [
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(r'[^<>]+', String),
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(r'<', String, '#push'),
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(r'>', String, '#pop'),
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],
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'delimited_curly': [
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(r'[^{}]+', String),
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(r'\{', String, 'delimited_inside_curly'),
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(r'\}"', String, '#pop'),
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],
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'delimited_inside_curly': [
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(r'[^{}]+', String),
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(r'\{', String, '#push'),
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(r'\}', String, '#pop'),
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],
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}
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class CrocLexer(RegexLexer):
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"""
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For Croc source.
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"""
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name = 'Croc'
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url = 'http://jfbillingsley.com/croc'
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filenames = ['*.croc']
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aliases = ['croc']
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mimetypes = ['text/x-crocsrc']
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version_added = ''
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tokens = {
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'root': [
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(r'\n', Whitespace),
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(r'\s+', Whitespace),
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# Comments
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(r'(//.*?)(\n)', bygroups(Comment.Single, Whitespace)),
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(r'/\*', Comment.Multiline, 'nestedcomment'),
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# Keywords
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(words((
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'as', 'assert', 'break', 'case', 'catch', 'class', 'continue',
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'default', 'do', 'else', 'finally', 'for', 'foreach', 'function',
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'global', 'namespace', 'if', 'import', 'in', 'is', 'local',
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'module', 'return', 'scope', 'super', 'switch', 'this', 'throw',
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'try', 'vararg', 'while', 'with', 'yield'), suffix=r'\b'),
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Keyword),
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(r'(false|true|null)\b', Keyword.Constant),
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# FloatLiteral
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(r'([0-9][0-9_]*)(?=[.eE])(\.[0-9][0-9_]*)?([eE][+\-]?[0-9_]+)?',
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Number.Float),
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# IntegerLiteral
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# -- Binary
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(r'0[bB][01][01_]*', Number.Bin),
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# -- Hexadecimal
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(r'0[xX][0-9a-fA-F][0-9a-fA-F_]*', Number.Hex),
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# -- Decimal
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(r'([0-9][0-9_]*)(?![.eE])', Number.Integer),
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# CharacterLiteral
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(r"""'(\\['"\\nrt]|\\x[0-9a-fA-F]{2}|\\[0-9]{1,3}"""
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r"""|\\u[0-9a-fA-F]{4}|\\U[0-9a-fA-F]{8}|.)'""",
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String.Char),
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# StringLiteral
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# -- WysiwygString
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(r'@"(""|[^"])*"', String),
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(r'@`(``|[^`])*`', String),
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(r"@'(''|[^'])*'", String),
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# -- DoubleQuotedString
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(r'"(\\\\|\\[^\\]|[^"\\])*"', String),
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# Tokens
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(r'(~=|\^=|%=|\*=|==|!=|>>>=|>>>|>>=|>>|>=|<=>|\?=|-\>'
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r'|<<=|<<|<=|\+\+|\+=|--|-=|\|\||\|=|&&|&=|\.\.|/=)'
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r'|[-/.&$@|\+<>!()\[\]{}?,;:=*%^~#\\]', Punctuation),
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# Identifier
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(r'[a-zA-Z_]\w*', Name),
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],
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'nestedcomment': [
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(r'[^*/]+', Comment.Multiline),
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(r'/\*', Comment.Multiline, '#push'),
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(r'\*/', Comment.Multiline, '#pop'),
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(r'[*/]', Comment.Multiline),
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],
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}
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class MiniDLexer(CrocLexer):
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"""
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For MiniD source. MiniD is now known as Croc.
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"""
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name = 'MiniD'
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filenames = [] # don't lex .md as MiniD, reserve for Markdown
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aliases = ['minid']
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mimetypes = ['text/x-minidsrc']
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version_added = ''
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