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Contents
class String
# This method allows one to compute
# the strings that represent LaTeX
# macro applicatins without descent
# into a hell of backlslshes and braces,
# especially when more than one macro
# has to be applied. For example,
# instead of
#
# content = "\\roleblue\{ #{content}\}"
#
# we say just
#
# content = content.macro('roleblue')
#
# Here is an appication of three macros:
#
# content.macro('roleblue').macro('foo').macro('bar')
#
#
def macro(macro)
"\\#{macro}\{#{self}\}"
end
# The 'apply_macros' method simplifies the
# chaining of a sequence of macro applications.
# For example, we could say
#
# 'yoda'.macro('baz').macro('bar').macro('foo')
#
# => "\\foo{\\bar{\\baz{yoda}}}"
#
# But it is simpler to say
#
# 'yoda'.apply_macros(['foo', 'bar', 'baz'])
#
# => "\\foo{\\bar{\\baz{yoda}}}"
#
# Because we reverse the argument list, the
# application order of the LaTeX macros
# matches the order in the argument list.
def apply_macros(macro_list)
val = self
macro_list.reverse.each do |macro_name|
val = val.macro(macro_name)
end
val
end
# map '_' to '-' and prefix by 'x' if the
# leading character is '-'
def tex_normalize
str = self.gsub('_', '-')
if str[0] == '-'
'x'+str
else
str
end
end
end
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12 entries across 12 versions & 1 rubygems