intermediate changes

ref:cde9a383711a11544ce7e107a78147fb96cc4029

1 files changed, 101 insertions, 0 deletions

diff --git a/contrib/python/Pygments/py2/pygments/lexers/apl.py b/contrib/python/Pygments/py2/pygments/lexers/apl.py
new file mode 100644
index 00000000000..26962504864
--- /dev/null
+++ b/contrib/python/Pygments/py2/pygments/lexers/apl.py
@@ -0,0 +1,101 @@
+# -*- coding: utf-8 -*-
+"""
+    pygments.lexers.apl
+    ~~~~~~~~~~~~~~~~~~~
+
+    Lexers for APL.
+
+    :copyright: Copyright 2006-2019 by the Pygments team, see AUTHORS.
+    :license: BSD, see LICENSE for details.
+"""
+
+from pygments.lexer import RegexLexer
+from pygments.token import Text, Comment, Operator, Keyword, Name, String, \
+    Number, Punctuation
+
+__all__ = ['APLLexer']
+
+
+class APLLexer(RegexLexer):
+    """
+    A simple APL lexer.
+
+    .. versionadded:: 2.0
+    """
+    name = 'APL'
+    aliases = ['apl']
+    filenames = ['*.apl']
+
+    tokens = {
+        'root': [
+            # Whitespace
+            # ==========
+            (r'\s+', Text),
+            #
+            # Comment
+            # =======
+            # '⍝' is traditional; '#' is supported by GNU APL and NGN (but not Dyalog)
+            (u'[⍝#].*$', Comment.Single),
+            #
+            # Strings
+            # =======
+            (r'\'((\'\')|[^\'])*\'', String.Single),
+            (r'"(("")|[^"])*"', String.Double),  # supported by NGN APL
+            #
+            # Punctuation
+            # ===========
+            # This token type is used for diamond and parenthesis
+            # but not for bracket and ; (see below)
+            (u'[⋄◇()]', Punctuation),
+            #
+            # Array indexing
+            # ==============
+            # Since this token type is very important in APL, it is not included in
+            # the punctuation token type but rather in the following one
+            (r'[\[\];]', String.Regex),
+            #
+            # Distinguished names
+            # ===================
+            # following IBM APL2 standard
+            (u'⎕[A-Za-zΔ∆⍙][A-Za-zΔ∆⍙_¯0-9]*', Name.Function),
+            #
+            # Labels
+            # ======
+            # following IBM APL2 standard
+            # (u'[A-Za-zΔ∆⍙][A-Za-zΔ∆⍙_¯0-9]*:', Name.Label),
+            #
+            # Variables
+            # =========
+            # following IBM APL2 standard
+            (u'[A-Za-zΔ∆⍙][A-Za-zΔ∆⍙_¯0-9]*', Name.Variable),
+            #
+            # Numbers
+            # =======
+            (u'¯?(0[Xx][0-9A-Fa-f]+|[0-9]*\\.?[0-9]+([Ee][+¯]?[0-9]+)?|¯|∞)'
+             u'([Jj]¯?(0[Xx][0-9A-Fa-f]+|[0-9]*\\.?[0-9]+([Ee][+¯]?[0-9]+)?|¯|∞))?',
+             Number),
+            #
+            # Operators
+            # ==========
+            (u'[\\.\\\\\\/⌿⍀¨⍣⍨⍠⍤∘]', Name.Attribute),  # closest token type
+            (u'[+\\-×÷⌈⌊∣|⍳?*⍟○!⌹<≤=>≥≠≡≢∊⍷∪∩~∨∧⍱⍲⍴,⍪⌽⊖⍉↑↓⊂⊃⌷⍋⍒⊤⊥⍕⍎⊣⊢⍁⍂≈⌸⍯↗]',
+             Operator),
+            #
+            # Constant
+            # ========
+            (u'⍬', Name.Constant),
+            #
+            # Quad symbol
+            # ===========
+            (u'[⎕⍞]', Name.Variable.Global),
+            #
+            # Arrows left/right
+            # =================
+            (u'[←→]', Keyword.Declaration),
+            #
+            # D-Fn
+            # ====
+            (u'[⍺⍵⍶⍹∇:]', Name.Builtin.Pseudo),
+            (r'[{}]', Keyword.Type),
+        ],
+    }