Nothing
#####EXAMPLES:
##note: to avoid misunderstandings: 'SMHandler' stands for /S/tartup/M/essage/Handler/
#mySMHandler <- function(c) {
# pkg <- startupPackage(c)
# npkg <- nchar(pkg)
# linestarter <- paste(":",pkg,"> ", sep ="")
# linestarterN <- paste("\n",linestarter, sep ="")
# linestarterE <- paste(linestarterN,"$",sep="")
# writeLines(paste(linestarter, sub(linestarterE,"\n",
# gsub("\n", linestarterN,
# conditionMessage(c))),sep=""),stderr())
#}
mystartupMessage <- function(..., domain = NULL, pkg = "", type = "version",
SMHandler = mySMHandler, endline = FALSE){
withRestarts(withCallingHandlers(
startupMessage(..., domain = domain,
pkg = pkg, type=type, endline = endline),
StartupMessage=function(m)
{signalCondition(m)
invokeRestart("custom",c=m,f=SMHandler)}
),
#as suggested by Seth Falcon:
onlytypeMessage = function(c0,atypes)
{if(startupType(c0) %in% atypes)
SMHandler(c=c0)
},
#as suggested by Seth Falcon:
custom = function(c,f) f(c),
muffleMessage = function() NULL )
invisible(NULL)
}
buildStartupMessage <- function(..., pkg, library=NULL, domain=NULL,
packageHelp=FALSE, MANUAL = NULL,
VIGNETTE = NULL,
SMHandler=mySMHandler){
#
tit.vers <- readVersionInformation(pkg,library)
if((!getOption("StartupBanner")=="off")||is.null(getOption("StartupBanner")))
mystartupMessage(tit.vers$"title", " (version ", tit.vers$"ver", ")",
domain = domain, pkg = pkg, type="version",
SMHandler = SMHandler)
###
if((getOption("StartupBanner")=="complete")||
is.null(getOption("StartupBanner"))){
llist <- length(list(...))
### checks as to existence of URL- NEWS- and MANUAL-information
#
URL <- readURLInformation(pkg,library)
NEWS <- pointertoNEWS(pkg,library)
#
if ( packageHelp) packageHelpS <- c("?\"", pkg, "\"")
else packageHelpS <- ""
if (!is.null(NEWS)) NEWSS <- NEWS
else NEWSS <- ""
if (!is.null(URL)) URLS <- c("\n ",URL)
else URLS <- ""
## MANUALL : is there a MANUAL entry?
MANUALL <- FALSE
MANUALS <- ""
if(!is.null(MANUAL))
{if (all(substr(as.character(MANUAL),1,7)=="https://"))
{MANUALL <- TRUE
MANUALS <- c("\n ",MANUAL)}
else {MANUAL1 <- paste(MANUAL,
sep = .Platform$file.sep,
collapse = .Platform$file.sep)
MANUALpath <- file.path(system.file(package = pkg),
MANUAL1, collapse = "")
if (file.exists(MANUALpath))
{ MANUALL <- TRUE
MANUALS <- c("\n ",MANUALpath)}
}
}
VIGNETTES = ifelse(!is.null(VIGNETTE),
paste("\n",VIGNETTE, sep = "", collapse = ""), "")
## are there any info-lines?
L <- sum(!is.null(URL), packageHelp , !is.null(NEWS) , MANUALL,
!is.null(VIGNETTE))
##determining the separators:
seps <- character(3)
seps[1] <- ifelse(packageHelp&&L>1,", ","")
seps[2] <- ifelse(!is.null(NEWS)&&
sum(!is.null(NEWS) , MANUALL, !is.null(URL))>1,
gettext(", as well as", domain = domain),
"")
seps[3] <- ifelse(MANUALL && sum(MANUALL, !is.null(URL))>1,
", ", "")
if( (MANUALL|| !is.null(URL)) && is.null(NEWS))
seps[1] <- gettext(", as well as", domain = domain)
#
if (L>0){
if (llist > 0)
mystartupMessage(..., domain=domain, pkg=pkg, type="notabene",
SMHandler=SMHandler)
mystartupMessage("For more information see ",
packageHelpS, seps[1], NEWSS, seps[2], URLS, seps[3],
MANUALS, VIGNETTES, "\n",
domain = domain, pkg = pkg, type = "information",
SMHandler = SMHandler, endline = TRUE)
}
else{
if (llist > 0)
mystartupMessage(..., domain=domain, pkg=pkg, type="notabene",
SMHandler=SMHandler, endline = TRUE)
}
}
}
########### end Examples
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