pygments/pygments 2.3.1

on GitHub

Updated lexers:

• ASM (PR#784)
• Chapel (PR#735)
• Clean (PR#621)
• CSound (PR#684)
• Elm (PR#744)
• Fortran (PR#747)
• GLSL (PR#740)
• Haskell (PR#745)
• Hy (PR#754)
• Igor Pro (PR#764)
• PowerShell (PR#705)
• Python (PR#720, #1299, PR#715)
• SLexer (PR#680)
• YAML (PR#762, PR#724)

Fix invalid string escape sequences

Fix FutureWarning introduced by regex changes in Python 3.7