87 lines
4.4 KiB
Plaintext
87 lines
4.4 KiB
Plaintext
---
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title: OpenQASMLexer
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description: API reference for qiskit.qasm.OpenQASMLexer
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in_page_toc_min_heading_level: 1
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python_api_type: class
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python_api_name: qiskit.qasm.OpenQASMLexer
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---
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# OpenQASMLexer
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<Class id="qiskit.qasm.OpenQASMLexer" isDedicatedPage={true} github="https://github.com/qiskit/qiskit/tree/stable/0.18/qiskit/qasm/pygments/lexer.py" signature="OpenQASMLexer(*args, **kwds)" modifiers="class">
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Bases: `pygments.lexer.RegexLexer`
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A pygments lexer for OpenQasm.
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## Methods
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### add\_filter
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<Function id="qiskit.qasm.OpenQASMLexer.add_filter" signature="OpenQASMLexer.add_filter(filter_, **options)">
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Add a new stream filter to this lexer.
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</Function>
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### analyse\_text
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<Function id="qiskit.qasm.OpenQASMLexer.analyse_text" signature="OpenQASMLexer.analyse_text(text)" modifiers="static">
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Has to return a float between `0` and `1` that indicates if a lexer wants to highlight this text. Used by `guess_lexer`. If this method returns `0` it won’t highlight it in any case, if it returns `1` highlighting with this lexer is guaranteed.
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The LexerMeta metaclass automatically wraps this function so that it works like a static method (no `self` or `cls` parameter) and the return value is automatically converted to float. If the return value is an object that is boolean False it’s the same as if the return values was `0.0`.
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</Function>
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### get\_tokens
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<Function id="qiskit.qasm.OpenQASMLexer.get_tokens" signature="OpenQASMLexer.get_tokens(text, unfiltered=False)">
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Return an iterable of (tokentype, value) pairs generated from text. If unfiltered is set to True, the filtering mechanism is bypassed even if filters are defined.
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Also preprocess the text, i.e. expand tabs and strip it if wanted and applies registered filters.
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</Function>
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### get\_tokens\_unprocessed
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<Function id="qiskit.qasm.OpenQASMLexer.get_tokens_unprocessed" signature="OpenQASMLexer.get_tokens_unprocessed(text, stack=('root'))">
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Split `text` into (tokentype, text) pairs.
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`stack` is the inital stack (default: `['root']`)
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</Function>
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## Attributes
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### alias\_filenames
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<Attribute id="qiskit.qasm.OpenQASMLexer.alias_filenames" attributeValue="[]" />
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### aliases
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<Attribute id="qiskit.qasm.OpenQASMLexer.aliases" attributeValue="['qasm']" />
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### filenames
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<Attribute id="qiskit.qasm.OpenQASMLexer.filenames" attributeValue="['*.qasm']" />
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### flags
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<Attribute id="qiskit.qasm.OpenQASMLexer.flags" attributeValue="8" />
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### gates
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<Attribute id="qiskit.qasm.OpenQASMLexer.gates" attributeValue="['id', 'cx', 'x', 'y', 'z', 's', 'sdg', 'h', 't', 'tdg', 'ccx', 'c3x', 'c4x', 'c3sqrtx', 'rx', 'ry', 'rz', 'cz', 'cy', 'ch', 'swap', 'cswap', 'crx', 'cry', 'crz', 'cu1', 'cu3', 'rxx', 'rzz', 'rccx', 'rc3x', 'u1', 'u2', 'u3']" />
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### mimetypes
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<Attribute id="qiskit.qasm.OpenQASMLexer.mimetypes" attributeValue="[]" />
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### name
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<Attribute id="qiskit.qasm.OpenQASMLexer.name" attributeValue="'OpenQASM'" />
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### priority
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<Attribute id="qiskit.qasm.OpenQASMLexer.priority" attributeValue="0" />
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### tokens
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<Attribute id="qiskit.qasm.OpenQASMLexer.tokens" attributeValue="{'gate': [('[unitary\\d+]', Token.Keyword.Type, '#push'), ('p\\d+', Token.Text, '#push')], 'if_keywords': [('[a-zA-Z0-9_]*', Token.Literal.String, '#pop'), ('\\d+', Token.Literal.Number, '#push'), ('.*\\(', Token.Text, 'params')], 'index': [('\\d+', Token.Literal.Number, '#pop')], 'keywords': [('\\s*("([^"]|"")*")', Token.Literal.String, '#push'), ('\\d+', Token.Literal.Number, '#push'), ('.*\\(', Token.Text, 'params')], 'params': [('[a-zA-Z_][a-zA-Z0-9_]*', Token.Text, '#push'), ('\\d+', Token.Literal.Number, '#push'), ('(\\d+\\.\\d*|\\d*\\.\\d+)([eEf][+-]?[0-9]+)?', Token.Literal.Number, '#push'), ('\\)', Token.Text)], 'root': [('\\n', Token.Text), ('[^\\S\\n]+', Token.Text), ('//\\n', Token.Comment), ('//.*?$', Token.Comment.Single), ('(OPENQASM|include)\\b', Token.Keyword.Reserved, 'keywords'), ('(qreg|creg)\\b', Token.Keyword.Declaration), ('(if)\\b', Token.Keyword.Reserved, 'if_keywords'), ('(pi)\\b', Token.Name.Constant), ('(barrier|measure|reset)\\b', Token.Name.Builtin, 'params'), ('(id|cx|x|y|z|s|sdg|h|t|tdg|ccx|c3x|c4x|c3sqrtx|rx|ry|rz|cz|cy|ch|swap|cswap|crx|cry|crz|cu1|cu3|rxx|rzz|rccx|rc3x|u1|u2|u3)\\b', Token.Keyword.Type, 'params'), ('[unitary\\d+]', Token.Keyword.Type), ('(gate)\\b', Token.Name.Function, 'gate'), ('[a-zA-Z_][a-zA-Z0-9_]*', Token.Text, 'index')]}" />
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</Class>
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