def ExtendedRegexEscape(s):
"""
Quoted parts need to be regex-escaped when quoted, e.g. [[ $a =~ "{" ]]. I
don't think libc has a function to do this. Escape these characters:
https://www.gnu.org/software/sed/manual/html_node/ERE-syntax.html
"""
return util.BackslashEscape(s, ERE_META_CHARS)
def EreCharClassEscape(s):
# \ is escaping
# ^ would invert it at the front,
# - is range
#
# ] would close it -- but there is a weird posix rule where it has to be put
# FIRST. Like []abc].
return util.BackslashEscape(s, r'\^-')
def ShellQuoteB(s):
"""Quote by adding backslashes.
This is friendlier for display on the command line.
TODO: We could also use this strategy for printf %q?
"""
# There's no way to escape a newline! Bash prints ^J for some reason, but
# we're more explicit. This will happen if there's a newline on a file
# system or a completion plugin returns a newline.
# NOTE: tabs CAN be escaped with \.
s = s.replace('\r', '<INVALID CR>').replace('\n', '<INVALID NEWLINE>')
# ~ for home dir
# ! for history
# * [] ? for glob
# {} for brace expansion
# space because it separates words
return util.BackslashEscape(s, ' `~!$&*()[]{}\\|;\'"<>?')
def testLog(self):
print(util.BackslashEscape('foo', 'o'))
def Escape(self, s): # Note the characters here are DYNAMIC, unlike other usages of # BackslashEscape(). return util.BackslashEscape(s, self.escape_chars)
def GlobEscape(s):
# type: (str) -> str
"""
For SingleQuoted, DoubleQuoted, and EscapedLiteral
"""
return util.BackslashEscape(s, GLOB_META_CHARS)
def ExtendedRegexEscape(s):
"""
For [[ foo =~ $\{ ]]
"""
return util.BackslashEscape(s, ERE_META_CHARS)
def GlobEscape(s): """ For SingleQuotedPart, DoubleQuotedPart, and EscapedLiteralPart """ return util.BackslashEscape(s, GLOB_META_CHARS)
