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###########################################################################/**
# @RdocClass RspIfDirective
# @alias RspElseDirective
# @alias RspEndifDirective
# @alias RspIfdefDirective
# @alias RspIfndefDirective
# @alias RspIfeqDirective
# @alias RspIfneqDirective
#
# @title "The RspIfDirective class"
#
# \description{
# @classhierarchy
#
# An RspIfDirective is an @see "RspDirective" that will include or
# exclude all @see "RspConstruct":s until the next @see "RspEndifDirective"
# based on the preprocessing value of the particular if clause.
# Inclusion/exclusion can be reversed via an @see "RspElseDirective".
# }
#
# @synopsis
#
# \arguments{
# \item{value}{A @character string.}
# \item{...}{Arguments passed to the constructor of @see "RspDirective".}
# }
#
# \section{Fields and Methods}{
# @allmethods
# }
#
# @author
#
# @keyword internal
#*/###########################################################################
setConstructorS3("RspIfDirective", function(value="if", ...) {
this <- extend(RspDirective(value, ...), "RspIfDirective")
if (!missing(value)) {
requireAttributes(this, c("test"))
# Test aliases
test <- getAttribute(this, "test")
map <- c(
"==" = "equal-to",
"!=" = "not-equal-to",
">" = "greater-than",
">=" = "greater-than-or-equal-to",
"<" = "less-than",
"<=" = "less-than-or-equal-to"
)
testA <- map[test]
if (!is.na(testA)) {
this <- setAttribute(this, "test", testA)
}
}
this
})
setConstructorS3("RspElseDirective", function(value="else", ...) {
extend(RspDirective(value, ...), "RspElseDirective")
})
setConstructorS3("RspEndifDirective", function(value="endif", ...) {
extend(RspDirective(value, ...), "RspEndifDirective")
})
# Alias: <%@ifeq ...%> => <%@if test="equals" ...%>
setConstructorS3("RspIfeqDirective", function(value="if", ...) {
extend(RspIfDirective(value, test="equal-to", ...), "RspIfeqDirective")
})
# Alias: <%@ifneq ...%> => <%@if test="equals" negate="TRUE", ...%>
setConstructorS3("RspIfneqDirective", function(value="if", ...) {
this <- extend(RspIfeqDirective(value, ...), "RspIfneqDirective")
# Negate the 'test' result
negate <- !getAttribute(this, "negate", FALSE)
this <- setAttribute(this, "negate", negate)
this
})
# Alias: <%@ifdef ...%> => <%@if test="exists" ...%>
setConstructorS3("RspIfdefDirective", function(value="if", ...) {
extend(RspIfDirective(value, test="exists", ...), "RspIfeqDirective")
})
# Alias: <%@ifndef ...%> => <%@if test="exists" negate="TRUE", ...%>
setConstructorS3("RspIfndefDirective", function(value="if", ...) {
this <- extend(RspIfdefDirective(value, ...), "RspIfneqDirective")
# Negate the 'test' result
negate <- !getAttribute(this, "negate", FALSE)
this <- setAttribute(this, "negate", negate)
this
})
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