intermediate changes

ref:cde9a383711a11544ce7e107a78147fb96cc4029

1 files changed, 240 insertions, 0 deletions

diff --git a/contrib/python/Pygments/py3/pygments/lexers/algebra.py b/contrib/python/Pygments/py3/pygments/lexers/algebra.py
new file mode 100644
index 0000000000..3e5c47b8dd
--- /dev/null
+++ b/contrib/python/Pygments/py3/pygments/lexers/algebra.py
@@ -0,0 +1,240 @@
+"""
+    pygments.lexers.algebra
+    ~~~~~~~~~~~~~~~~~~~~~~~
+
+    Lexers for computer algebra systems.
+
+    :copyright: Copyright 2006-2021 by the Pygments team, see AUTHORS.
+    :license: BSD, see LICENSE for details.
+"""
+
+import re
+
+from pygments.lexer import RegexLexer, bygroups, words
+from pygments.token import Text, Comment, Operator, Keyword, Name, String, \
+    Number, Punctuation, Whitespace
+
+__all__ = ['GAPLexer', 'MathematicaLexer', 'MuPADLexer', 'BCLexer']
+
+
+class GAPLexer(RegexLexer):
+    """
+    For `GAP <http://www.gap-system.org>`_ source code.
+
+    .. versionadded:: 2.0
+    """
+    name = 'GAP'
+    aliases = ['gap']
+    filenames = ['*.g', '*.gd', '*.gi', '*.gap']
+
+    tokens = {
+        'root': [
+            (r'#.*$', Comment.Single),
+            (r'"(?:[^"\\]|\\.)*"', String),
+            (r'\(|\)|\[|\]|\{|\}', Punctuation),
+            (r'''(?x)\b(?:
+                if|then|elif|else|fi|
+                for|while|do|od|
+                repeat|until|
+                break|continue|
+                function|local|return|end|
+                rec|
+                quit|QUIT|
+                IsBound|Unbind|
+                TryNextMethod|
+                Info|Assert
+              )\b''', Keyword),
+            (r'''(?x)\b(?:
+                true|false|fail|infinity
+              )\b''',
+             Name.Constant),
+            (r'''(?x)\b(?:
+                (Declare|Install)([A-Z][A-Za-z]+)|
+                   BindGlobal|BIND_GLOBAL
+              )\b''',
+             Name.Builtin),
+            (r'\.|,|:=|;|=|\+|-|\*|/|\^|>|<', Operator),
+            (r'''(?x)\b(?:
+                and|or|not|mod|in
+              )\b''',
+             Operator.Word),
+            (r'''(?x)
+              (?:\w+|`[^`]*`)
+              (?:::\w+|`[^`]*`)*''', Name.Variable),
+            (r'[0-9]+(?:\.[0-9]*)?(?:e[0-9]+)?', Number),
+            (r'\.[0-9]+(?:e[0-9]+)?', Number),
+            (r'.', Text)
+        ],
+    }
+
+    def analyse_text(text):
+        score = 0.0
+
+        # Declaration part
+        if re.search(
+            r"(InstallTrueMethod|Declare(Attribute|Category|Filter|Operation" +
+            r"|GlobalFunction|Synonym|SynonymAttr|Property))", text
+        ):
+            score += 0.7
+
+        # Implementation part
+        if re.search(
+            r"(DeclareRepresentation|Install(GlobalFunction|Method|" +
+            r"ImmediateMethod|OtherMethod)|New(Family|Type)|Objectify)", text
+        ):
+            score += 0.7
+
+        return min(score, 1.0)
+
+
+class MathematicaLexer(RegexLexer):
+    """
+    Lexer for `Mathematica <http://www.wolfram.com/mathematica/>`_ source code.
+
+    .. versionadded:: 2.0
+    """
+    name = 'Mathematica'
+    aliases = ['mathematica', 'mma', 'nb']
+    filenames = ['*.nb', '*.cdf', '*.nbp', '*.ma']
+    mimetypes = ['application/mathematica',
+                 'application/vnd.wolfram.mathematica',
+                 'application/vnd.wolfram.mathematica.package',
+                 'application/vnd.wolfram.cdf']
+
+    # http://reference.wolfram.com/mathematica/guide/Syntax.html
+    operators = (
+        ";;", "=", "=.", "!=" "==", ":=", "->", ":>", "/.", "+", "-", "*", "/",
+        "^", "&&", "||", "!", "<>", "|", "/;", "?", "@", "//", "/@", "@@",
+        "@@@", "~~", "===", "&", "<", ">", "<=", ">=",
+    )
+
+    punctuation = (",", ";", "(", ")", "[", "]", "{", "}")
+
+    def _multi_escape(entries):
+        return '(%s)' % ('|'.join(re.escape(entry) for entry in entries))
+
+    tokens = {
+        'root': [
+            (r'(?s)\(\*.*?\*\)', Comment),
+
+            (r'([a-zA-Z]+[A-Za-z0-9]*`)', Name.Namespace),
+            (r'([A-Za-z0-9]*_+[A-Za-z0-9]*)', Name.Variable),
+            (r'#\d*', Name.Variable),
+            (r'([a-zA-Z]+[a-zA-Z0-9]*)', Name),
+
+            (r'-?\d+\.\d*', Number.Float),
+            (r'-?\d*\.\d+', Number.Float),
+            (r'-?\d+', Number.Integer),
+
+            (words(operators), Operator),
+            (words(punctuation), Punctuation),
+            (r'".*?"', String),
+            (r'\s+', Text.Whitespace),
+        ],
+    }
+
+
+class MuPADLexer(RegexLexer):
+    """
+    A `MuPAD <http://www.mupad.com>`_ lexer.
+    Contributed by Christopher Creutzig <christopher@creutzig.de>.
+
+    .. versionadded:: 0.8
+    """
+    name = 'MuPAD'
+    aliases = ['mupad']
+    filenames = ['*.mu']
+
+    tokens = {
+        'root': [
+            (r'//.*?$', Comment.Single),
+            (r'/\*', Comment.Multiline, 'comment'),
+            (r'"(?:[^"\\]|\\.)*"', String),
+            (r'\(|\)|\[|\]|\{|\}', Punctuation),
+            (r'''(?x)\b(?:
+                next|break|end|
+                axiom|end_axiom|category|end_category|domain|end_domain|inherits|
+                if|%if|then|elif|else|end_if|
+                case|of|do|otherwise|end_case|
+                while|end_while|
+                repeat|until|end_repeat|
+                for|from|to|downto|step|end_for|
+                proc|local|option|save|begin|end_proc|
+                delete|frame
+              )\b''', Keyword),
+            (r'''(?x)\b(?:
+                DOM_ARRAY|DOM_BOOL|DOM_COMPLEX|DOM_DOMAIN|DOM_EXEC|DOM_EXPR|
+                DOM_FAIL|DOM_FLOAT|DOM_FRAME|DOM_FUNC_ENV|DOM_HFARRAY|DOM_IDENT|
+                DOM_INT|DOM_INTERVAL|DOM_LIST|DOM_NIL|DOM_NULL|DOM_POLY|DOM_PROC|
+                DOM_PROC_ENV|DOM_RAT|DOM_SET|DOM_STRING|DOM_TABLE|DOM_VAR
+              )\b''', Name.Class),
+            (r'''(?x)\b(?:
+                PI|EULER|E|CATALAN|
+                NIL|FAIL|undefined|infinity|
+                TRUE|FALSE|UNKNOWN
+              )\b''',
+             Name.Constant),
+            (r'\b(?:dom|procname)\b', Name.Builtin.Pseudo),
+            (r'\.|,|:|;|=|\+|-|\*|/|\^|@|>|<|\$|\||!|\'|%|~=', Operator),
+            (r'''(?x)\b(?:
+                and|or|not|xor|
+                assuming|
+                div|mod|
+                union|minus|intersect|in|subset
+              )\b''',
+             Operator.Word),
+            (r'\b(?:I|RDN_INF|RD_NINF|RD_NAN)\b', Number),
+            # (r'\b(?:adt|linalg|newDomain|hold)\b', Name.Builtin),
+            (r'''(?x)
+              ((?:[a-zA-Z_#][\w#]*|`[^`]*`)
+              (?:::[a-zA-Z_#][\w#]*|`[^`]*`)*)(\s*)([(])''',
+             bygroups(Name.Function, Text, Punctuation)),
+            (r'''(?x)
+              (?:[a-zA-Z_#][\w#]*|`[^`]*`)
+              (?:::[a-zA-Z_#][\w#]*|`[^`]*`)*''', Name.Variable),
+            (r'[0-9]+(?:\.[0-9]*)?(?:e[0-9]+)?', Number),
+            (r'\.[0-9]+(?:e[0-9]+)?', Number),
+            (r'\s+', Whitespace),
+            (r'.', Text)
+        ],
+        'comment': [
+            (r'[^/*]+', Comment.Multiline),
+            (r'/\*', Comment.Multiline, '#push'),
+            (r'\*/', Comment.Multiline, '#pop'),
+            (r'[*/]', Comment.Multiline)
+        ],
+    }
+
+
+class BCLexer(RegexLexer):
+    """
+    A `BC <https://www.gnu.org/software/bc/>`_ lexer.
+
+    .. versionadded:: 2.1
+    """
+    name = 'BC'
+    aliases = ['bc']
+    filenames = ['*.bc']
+
+    tokens = {
+        'root': [
+            (r'/\*', Comment.Multiline, 'comment'),
+            (r'"(?:[^"\\]|\\.)*"', String),
+            (r'[{}();,]', Punctuation),
+            (words(('if', 'else', 'while', 'for', 'break', 'continue',
+                    'halt', 'return', 'define', 'auto', 'print', 'read',
+                    'length', 'scale', 'sqrt', 'limits', 'quit',
+                    'warranty'), suffix=r'\b'), Keyword),
+            (r'\+\+|--|\|\||&&|'
+             r'([-<>+*%\^/!=])=?', Operator),
+            # bc doesn't support exponential
+            (r'[0-9]+(\.[0-9]*)?', Number),
+            (r'\.[0-9]+', Number),
+            (r'.', Text)
+        ],
+        'comment': [
+            (r'[^*/]+', Comment.Multiline),
+            (r'\*/', Comment.Multiline, '#pop'),
+            (r'[*/]', Comment.Multiline)
+        ],
+    }