#  Copyright (C) 2003-2025 The R Core Team

#### --- Hershey Vector Fonts ---

require(grDevices); require(graphics)

######
# create tables of vector font functionality
######
make.table <- function(nr, nc) {
    savepar <- par(mar=rep(0, 4), pty="s")
    plot(c(0, nc*2 + 1), c(0, -(nr + 1)),
         type="n", xlab="", ylab="", axes=FALSE)
    invisible(savepar)
}

get.r <- function(i, nr)     i %% nr + 1
get.c <- function(i, nr)     i %/% nr + 1

draw.title <- function(title, i = 0, nr, nc) {
    r <- get.r(i, nr)
    c <- get.c(i, nr)
    text((nc*2 + 1)/2, 0, title, font=2)
}

draw.sample.cell <- function(typeface, fontindex, string, i, nr) {
    r <- get.r(i, nr)
    c <- get.c(i, nr)
    text(2*(c - 1) + 1, -r, paste(typeface, fontindex))
    text(2*c, -r, string, vfont=c(typeface, fontindex), cex=1.5)
    rect(2*(c - 1) + .5, -(r - .5), 2*c + .5, -(r + .5), border="grey")
}

draw.vf.cell <- function(typeface, fontindex, string, i, nr, raw.string=NULL) {
    r <- get.r(i, nr)
    c <- get.c(i, nr)
    if (is.null(raw.string))
        raw.string <- paste0("\\", string)
    text(2*(c - 1) + 1, -r, raw.string, col="grey")
    text(2*c, -r, string, vfont=c(typeface, fontindex))
    rect(2*(c - 1) + .5, -(r - .5), (2*c + .5), -(r + .5), border="grey")
}

nr <- 23
nc <- 1
oldpar <- make.table(nr, nc)
i <- 0
draw.title("Sample 'a' for each available font", i, nr, nc)
draw.sample.cell("serif", "plain", "a", i, nr); i <- i + 1
draw.sample.cell("serif", "italic", "a", i, nr); i <- i + 1
draw.sample.cell("serif", "bold", "a", i, nr); i <- i + 1
draw.sample.cell("serif", "bold italic", "a", i, nr); i <- i + 1
draw.sample.cell("serif", "cyrillic", "\301", i, nr); i <- i + 1
draw.sample.cell("serif", "oblique cyrillic", "\301", i, nr); i <- i + 1
draw.sample.cell("serif", "EUC", "a", i, nr); i <- i + 1
draw.sample.cell("sans serif", "plain", "a", i, nr); i <- i + 1
draw.sample.cell("sans serif", "italic", "a", i, nr); i <- i + 1
draw.sample.cell("sans serif", "bold", "a", i, nr); i <- i + 1
draw.sample.cell("sans serif", "bold italic", "a", i, nr); i <- i + 1
draw.sample.cell("script", "plain", "a", i, nr); i <- i + 1
draw.sample.cell("script", "italic", "a", i, nr); i <- i + 1
draw.sample.cell("script", "bold", "a", i, nr); i <- i + 1
draw.sample.cell("gothic english", "plain", "a", i, nr); i <- i + 1
draw.sample.cell("gothic german", "plain", "a", i, nr); i <- i + 1
draw.sample.cell("gothic italian", "plain", "a", i, nr); i <- i + 1
draw.sample.cell("serif symbol", "plain", "a", i, nr); i <- i + 1
draw.sample.cell("serif symbol", "italic", "a", i, nr); i <- i + 1
draw.sample.cell("serif symbol", "bold", "a", i, nr); i <- i + 1
draw.sample.cell("serif symbol", "bold italic", "a", i, nr); i <- i + 1
draw.sample.cell("sans serif symbol", "plain", "a", i, nr); i <- i + 1
draw.sample.cell("sans serif symbol", "italic", "a", i, nr); i <- i + 1

nr <- 25
nc <- 6
tf <- "serif"
fi <- "plain"
make.table(nr, nc)
i <- 0
draw.title("Symbol (incl. Greek) Escape Sequences", i, nr, nc)
## Greek alphabet in order
draw.vf.cell(tf, fi, "\\*A", i, nr); i<-i+1; { "Alpha"}
draw.vf.cell(tf, fi, "\\*B", i, nr); i<-i+1; { "Beta"}
draw.vf.cell(tf, fi, "\\*G", i, nr); i<-i+1; { "Gamma"}
draw.vf.cell(tf, fi, "\\*D", i, nr); i<-i+1; { "Delta"}
draw.vf.cell(tf, fi, "\\*E", i, nr); i<-i+1; { "Epsilon"}
draw.vf.cell(tf, fi, "\\*Z", i, nr); i<-i+1; { "Zeta"}
draw.vf.cell(tf, fi, "\\*Y", i, nr); i<-i+1; { "Eta"}
draw.vf.cell(tf, fi, "\\*H", i, nr); i<-i+1; { "Theta"}
draw.vf.cell(tf, fi, "\\*I", i, nr); i<-i+1; { "Iota"}
draw.vf.cell(tf, fi, "\\*K", i, nr); i<-i+1; { "Kappa"}
draw.vf.cell(tf, fi, "\\*L", i, nr); i<-i+1; { "Lambda"}
draw.vf.cell(tf, fi, "\\*M", i, nr); i<-i+1; { "Mu"}
draw.vf.cell(tf, fi, "\\*N", i, nr); i<-i+1; { "Nu"}
draw.vf.cell(tf, fi, "\\*C", i, nr); i<-i+1; { "Xi"}
draw.vf.cell(tf, fi, "\\*O", i, nr); i<-i+1; { "Omicron"}
draw.vf.cell(tf, fi, "\\*P", i, nr); i<-i+1; { "Pi"}
draw.vf.cell(tf, fi, "\\*R", i, nr); i<-i+1; { "Rho"}
draw.vf.cell(tf, fi, "\\*S", i, nr); i<-i+1; { "Sigma"}
draw.vf.cell(tf, fi, "\\*T", i, nr); i<-i+1; { "Tau"}
draw.vf.cell(tf, fi, "\\*U", i, nr); i<-i+1; { "Upsilon"}
draw.vf.cell(tf, fi, "\\+U", i, nr); i<-i+1; { "Upsilon1"}
draw.vf.cell(tf, fi, "\\*F", i, nr); i<-i+1; { "Phi"}
draw.vf.cell(tf, fi, "\\*X", i, nr); i<-i+1; { "Chi"}
draw.vf.cell(tf, fi, "\\*Q", i, nr); i<-i+1; { "Psi"}
draw.vf.cell(tf, fi, "\\*W", i, nr); i<-i+1; { "Omega"}
#
draw.vf.cell(tf, fi, "\\*a", i, nr); i<-i+1; { "alpha"}
draw.vf.cell(tf, fi, "\\*b", i, nr); i<-i+1; { "beta"}
draw.vf.cell(tf, fi, "\\*g", i, nr); i<-i+1; { "gamma"}
draw.vf.cell(tf, fi, "\\*d", i, nr); i<-i+1; { "delta"}
draw.vf.cell(tf, fi, "\\*e", i, nr); i<-i+1; { "epsilon"}
draw.vf.cell(tf, fi, "\\*z", i, nr); i<-i+1; { "zeta"}
draw.vf.cell(tf, fi, "\\*y", i, nr); i<-i+1; { "eta"}
draw.vf.cell(tf, fi, "\\*h", i, nr); i<-i+1; { "theta"}
draw.vf.cell(tf, fi, "\\+h", i, nr); i<-i+1; { "theta1"}
draw.vf.cell(tf, fi, "\\*i", i, nr); i<-i+1; { "iota"}
draw.vf.cell(tf, fi, "\\*k", i, nr); i<-i+1; { "kappa"}
draw.vf.cell(tf, fi, "\\*l", i, nr); i<-i+1; { "lambda"}
draw.vf.cell(tf, fi, "\\*m", i, nr); i<-i+1; { "mu"}
draw.vf.cell(tf, fi, "\\*n", i, nr); i<-i+1; { "nu"}
draw.vf.cell(tf, fi, "\\*c", i, nr); i<-i+1; { "xi"}
draw.vf.cell(tf, fi, "\\*o", i, nr); i<-i+1; { "omicron"}
draw.vf.cell(tf, fi, "\\*p", i, nr); i<-i+1; { "pi"}
draw.vf.cell(tf, fi, "\\*r", i, nr); i<-i+1; { "rho"}
draw.vf.cell(tf, fi, "\\*s", i, nr); i<-i+1; { "sigma"}
draw.vf.cell(tf, fi, "\\ts", i, nr); i<-i+1; { "sigma1"}
draw.vf.cell(tf, fi, "\\*t", i, nr); i<-i+1; { "tau"}
draw.vf.cell(tf, fi, "\\*u", i, nr); i<-i+1; { "upsilon"}
draw.vf.cell(tf, fi, "\\*f", i, nr); i<-i+1; { "phi"}
draw.vf.cell(tf, fi, "\\+f", i, nr); i<-i+1; { "phi1"}
draw.vf.cell(tf, fi, "\\*x", i, nr); i<-i+1; { "chi"}
draw.vf.cell(tf, fi, "\\*q", i, nr); i<-i+1; { "psi"}
draw.vf.cell(tf, fi, "\\*w", i, nr); i<-i+1; { "omega"}
draw.vf.cell(tf, fi, "\\+p", i, nr); i<-i+1; { "omega1"}
#
draw.vf.cell(tf, fi, "\\fa", i, nr); i<-i+1; { "universal"}
draw.vf.cell(tf, fi, "\\te", i, nr); i<-i+1; { "existential"}
draw.vf.cell(tf, fi, "\\st", i, nr); i<-i+1; { "suchthat"}
draw.vf.cell(tf, fi, "\\**", i, nr); i<-i+1; { "asteriskmath"}
draw.vf.cell(tf, fi, "\\=~", i, nr); i<-i+1; { "congruent"}
draw.vf.cell(tf, fi, "\\tf", i, nr); i<-i+1; { "therefore"}
draw.vf.cell(tf, fi, "\\pp", i, nr); i<-i+1; { "perpendicular"}
draw.vf.cell(tf, fi, "\\ul", i, nr); i<-i+1; { "underline"}
draw.vf.cell(tf, fi, "\\rx", i, nr); i<-i+1; { "radicalex"}

draw.vf.cell(tf, fi, "\\ap", i, nr); i<-i+1; { "similar"}
draw.vf.cell(tf, fi, "\\fm", i, nr); i<-i+1; { "minute"}
draw.vf.cell(tf, fi, "\\<=", i, nr); i<-i+1; { "lessequal"}
draw.vf.cell(tf, fi, "\\f/", i, nr); i<-i+1; { "fraction"}
draw.vf.cell(tf, fi, "\\if", i, nr); i<-i+1; { "infinity"}
draw.vf.cell(tf, fi, "\\Fn", i, nr); i<-i+1; { "florin"}
draw.vf.cell(tf, fi, "\\CL", i, nr); i<-i+1; { "club"}
draw.vf.cell(tf, fi, "\\DI", i, nr); i<-i+1; { "diamond"}
draw.vf.cell(tf, fi, "\\HE", i, nr); i<-i+1; { "heart"}
draw.vf.cell(tf, fi, "\\SP", i, nr); i<-i+1; { "spade"}
draw.vf.cell(tf, fi, "\\<>", i, nr); i<-i+1; { "arrowboth"}
draw.vf.cell(tf, fi, "\\<-", i, nr); i<-i+1; { "arrowleft"}
draw.vf.cell(tf, fi, "\\ua", i, nr); i<-i+1; { "arrowup"}
draw.vf.cell(tf, fi, "\\->", i, nr); i<-i+1; { "arrowright"}
draw.vf.cell(tf, fi, "\\da", i, nr); i<-i+1; { "arrowdown"}
draw.vf.cell(tf, fi, "\\de", i, nr); i<-i+1; { "degree"}
draw.vf.cell(tf, fi, "\\+-", i, nr); i<-i+1; { "plusminus"}
draw.vf.cell(tf, fi, "\\sd", i, nr); i<-i+1; { "second"}
draw.vf.cell(tf, fi, "\\>=", i, nr); i<-i+1; { "greaterequal"}
draw.vf.cell(tf, fi, "\\mu", i, nr); i<-i+1; { "multiply"}
draw.vf.cell(tf, fi, "\\pt", i, nr); i<-i+1; { "proportional"}
draw.vf.cell(tf, fi, "\\pd", i, nr); i<-i+1; { "partialdiff"}
draw.vf.cell(tf, fi, "\\bu", i, nr); i<-i+1; { "bullet"}
draw.vf.cell(tf, fi, "\\di", i, nr); i<-i+1; { "divide"}
draw.vf.cell(tf, fi, "\\!=", i, nr); i<-i+1; { "notequal"}
draw.vf.cell(tf, fi, "\\==", i, nr); i<-i+1; { "equivalence"}
draw.vf.cell(tf, fi, "\\~~", i, nr); i<-i+1; { "approxequal"}
draw.vf.cell(tf, fi, "\\..", i, nr); i<-i+1; { "ellipsis"}
draw.vf.cell(tf, fi, "\\an", i, nr); i<-i+1; { "arrowhorizex"}
draw.vf.cell(tf, fi, "\\CR", i, nr); i<-i+1; { "carriagereturn"}
draw.vf.cell(tf, fi, "\\Ah", i, nr); i<-i+1; { "aleph"}
draw.vf.cell(tf, fi, "\\Im", i, nr); i<-i+1; { "Ifraktur"}
draw.vf.cell(tf, fi, "\\Re", i, nr); i<-i+1; { "Rfraktur"}
draw.vf.cell(tf, fi, "\\wp", i, nr); i<-i+1; { "weierstrass"}
draw.vf.cell(tf, fi, "\\c*", i, nr); i<-i+1; { "circlemultiply"}
draw.vf.cell(tf, fi, "\\c+", i, nr); i<-i+1; { "circleplus"}
draw.vf.cell(tf, fi, "\\es", i, nr); i<-i+1; { "emptyset"}
draw.vf.cell(tf, fi, "\\ca", i, nr); i<-i+1; { "cap"}
draw.vf.cell(tf, fi, "\\cu", i, nr); i<-i+1; { "cup"}
draw.vf.cell(tf, fi, "\\SS", i, nr); i<-i+1; { "superset"}
draw.vf.cell(tf, fi, "\\ip", i, nr); i<-i+1; { "reflexsuperset"}
draw.vf.cell(tf, fi, "\\n<", i, nr); i<-i+1; { "notsubset"}
draw.vf.cell(tf, fi, "\\SB", i, nr); i<-i+1; { "subset"}
draw.vf.cell(tf, fi, "\\ib", i, nr); i<-i+1; { "reflexsubset"}
draw.vf.cell(tf, fi, "\\mo", i, nr); i<-i+1; { "element"}
draw.vf.cell(tf, fi, "\\nm", i, nr); i<-i+1; { "notelement"}
draw.vf.cell(tf, fi, "\\/_", i, nr); i<-i+1; { "angle"}
draw.vf.cell(tf, fi, "\\gr", i, nr); i<-i+1; { "nabla"}
draw.vf.cell(tf, fi, "\\rg", i, nr); i<-i+1; { "registerserif"}
draw.vf.cell(tf, fi, "\\co", i, nr); i<-i+1; { "copyrightserif"}
draw.vf.cell(tf, fi, "\\tm", i, nr); i<-i+1; { "trademarkserif"}
draw.vf.cell(tf, fi, "\\PR", i, nr); i<-i+1; { "product"}
draw.vf.cell(tf, fi, "\\sr", i, nr); i<-i+1; { "radical"}
draw.vf.cell(tf, fi, "\\md", i, nr); i<-i+1; { "dotmath"}
draw.vf.cell(tf, fi, "\\no", i, nr); i<-i+1; { "logicalnot"}
draw.vf.cell(tf, fi, "\\AN", i, nr); i<-i+1; { "logicaland"}
draw.vf.cell(tf, fi, "\\OR", i, nr); i<-i+1; { "logicalor"}
draw.vf.cell(tf, fi, "\\hA", i, nr); i<-i+1; { "arrowdblboth"}
draw.vf.cell(tf, fi, "\\lA", i, nr); i<-i+1; { "arrowdblleft"}
draw.vf.cell(tf, fi, "\\uA", i, nr); i<-i+1; { "arrowdblup"}
draw.vf.cell(tf, fi, "\\rA", i, nr); i<-i+1; { "arrowdblright"}
draw.vf.cell(tf, fi, "\\dA", i, nr); i<-i+1; { "arrowdbldown"}
draw.vf.cell(tf, fi, "\\lz", i, nr); i<-i+1; { "lozenge"}
draw.vf.cell(tf, fi, "\\la", i, nr); i<-i+1; { "angleleft"}
draw.vf.cell(tf, fi, "\\RG", i, nr); i<-i+1; { "registersans"}
draw.vf.cell(tf, fi, "\\CO", i, nr); i<-i+1; { "copyrightsans"}
draw.vf.cell(tf, fi, "\\TM", i, nr); i<-i+1; { "trademarksans"}
draw.vf.cell(tf, fi, "\\SU", i, nr); i<-i+1; { "summation"}
draw.vf.cell(tf, fi, "\\lc", i, nr); i<-i+1; { "bracketlefttp"}
draw.vf.cell(tf, fi, "\\lf", i, nr); i<-i+1; { "bracketleftbt"}
draw.vf.cell(tf, fi, "\\ra", i, nr); i<-i+1; { "angleright"}
draw.vf.cell(tf, fi, "\\is", i, nr); i<-i+1; { "integral"}
draw.vf.cell(tf, fi, "\\rc", i, nr); i<-i+1; { "bracketrighttp"}
draw.vf.cell(tf, fi, "\\rf", i, nr); i<-i+1; { "bracketrightbt"}
draw.vf.cell(tf, fi, "\\~=", i, nr); i<-i+1; { "congruent"}
draw.vf.cell(tf, fi, "\\pr", i, nr); i<-i+1; { "minute"}
draw.vf.cell(tf, fi, "\\in", i, nr); i<-i+1; { "infinity"}
draw.vf.cell(tf, fi, "\\n=", i, nr); i<-i+1; { "notequal"}
draw.vf.cell(tf, fi, "\\dl", i, nr); i<-i+1; { "nabla"}

nr <- 25
nc <- 4
make.table(nr, nc)
i <- 0
draw.title("ISO Latin-1 Escape Sequences", i, nr, nc)
draw.vf.cell(tf, fi, "\\r!", i, nr); i<-i+1; { "exclamdown"}
draw.vf.cell(tf, fi, "\\ct", i, nr); i<-i+1; { "cent"}
draw.vf.cell(tf, fi, "\\Po", i, nr); i<-i+1; { "sterling"}
draw.vf.cell(tf, fi, "\\Ye", i, nr); i<-i+1; { "yen"}
draw.vf.cell(tf, fi, "\\bb", i, nr); i<-i+1; { "brokenbar"}
draw.vf.cell(tf, fi, "\\sc", i, nr); i<-i+1; { "section"}
draw.vf.cell(tf, fi, "\\ad", i, nr); i<-i+1; { "dieresis"}
draw.vf.cell(tf, fi, "\\co", i, nr); i<-i+1; { "copyright"}
draw.vf.cell(tf, fi, "\\Of", i, nr); i<-i+1; { "ordfeminine"}
draw.vf.cell(tf, fi, "\\no", i, nr); i<-i+1; { "logicalnot"}
draw.vf.cell(tf, fi, "\\hy", i, nr); i<-i+1; { "hyphen"}
draw.vf.cell(tf, fi, "\\rg", i, nr); i<-i+1; { "registered"}
draw.vf.cell(tf, fi, "\\a-", i, nr); i<-i+1; { "macron"}
draw.vf.cell(tf, fi, "\\de", i, nr); i<-i+1; { "degree"}
draw.vf.cell(tf, fi, "\\+-", i, nr); i<-i+1; { "plusminus"}
draw.vf.cell(tf, fi, "\\S2", i, nr); i<-i+1; { "twosuperior"}
draw.vf.cell(tf, fi, "\\S3", i, nr); i<-i+1; { "threesuperior"}
draw.vf.cell(tf, fi, "\\aa", i, nr); i<-i+1; { "acute"}
draw.vf.cell(tf, fi, "\\*m", i, nr); i<-i+1; { "mu"}
draw.vf.cell(tf, fi, "\\md", i, nr); i<-i+1; { "periodcentered"}
draw.vf.cell(tf, fi, "\\S1", i, nr); i<-i+1; { "onesuperior"}
draw.vf.cell(tf, fi, "\\Om", i, nr); i<-i+1; { "ordmasculine"}
draw.vf.cell(tf, fi, "\\14", i, nr); i<-i+1; { "onequarter"}
draw.vf.cell(tf, fi, "\\12", i, nr); i<-i+1; { "onehalf"}
draw.vf.cell(tf, fi, "\\34", i, nr); i<-i+1; { "threequarters"}
draw.vf.cell(tf, fi, "\\r?", i, nr); i<-i+1; { "questiondown"}
draw.vf.cell(tf, fi, "\\`A", i, nr); i<-i+1; { "Agrave"}
draw.vf.cell(tf, fi, "\\'A", i, nr); i<-i+1; { "Aacute"}
draw.vf.cell(tf, fi, "\\^A", i, nr); i<-i+1; { "Acircumflex"}
draw.vf.cell(tf, fi, "\\~A", i, nr); i<-i+1; { "Atilde"}
draw.vf.cell(tf, fi, "\\:A", i, nr); i<-i+1; { "Adieresis"}
draw.vf.cell(tf, fi, "\\oA", i, nr); i<-i+1; { "Aring"}
draw.vf.cell(tf, fi, "\\AE", i, nr); i<-i+1; { "AE"}
draw.vf.cell(tf, fi, "\\,C", i, nr); i<-i+1; { "Ccedilla"}
draw.vf.cell(tf, fi, "\\`E", i, nr); i<-i+1; { "Egrave"}
draw.vf.cell(tf, fi, "\\'E", i, nr); i<-i+1; { "Eacute"}
draw.vf.cell(tf, fi, "\\^E", i, nr); i<-i+1; { "Ecircumflex"}
draw.vf.cell(tf, fi, "\\:E", i, nr); i<-i+1; { "Edieresis"}
draw.vf.cell(tf, fi, "\\`I", i, nr); i<-i+1; { "Igrave"}
draw.vf.cell(tf, fi, "\\'I", i, nr); i<-i+1; { "Iacute"}
draw.vf.cell(tf, fi, "\\^I", i, nr); i<-i+1; { "Icircumflex"}
draw.vf.cell(tf, fi, "\\:I", i, nr); i<-i+1; { "Idieresis"}
draw.vf.cell(tf, fi, "\\~N", i, nr); i<-i+1; { "Ntilde"}
draw.vf.cell(tf, fi, "\\`O", i, nr); i<-i+1; { "Ograve"}
draw.vf.cell(tf, fi, "\\'O", i, nr); i<-i+1; { "Oacute"}
draw.vf.cell(tf, fi, "\\^O", i, nr); i<-i+1; { "Ocircumflex"}
draw.vf.cell(tf, fi, "\\~O", i, nr); i<-i+1; { "Otilde"}
draw.vf.cell(tf, fi, "\\:O", i, nr); i<-i+1; { "Odieresis"}
draw.vf.cell(tf, fi, "\\mu", i, nr); i<-i+1; { "multiply"}
draw.vf.cell(tf, fi, "\\/O", i, nr); i<-i+1; { "Oslash"}
draw.vf.cell(tf, fi, "\\`U", i, nr); i<-i+1; { "Ugrave"}
draw.vf.cell(tf, fi, "\\'U", i, nr); i<-i+1; { "Uacute"}
draw.vf.cell(tf, fi, "\\^U", i, nr); i<-i+1; { "Ucircumflex"}
draw.vf.cell(tf, fi, "\\:U", i, nr); i<-i+1; { "Udieresis"}
draw.vf.cell(tf, fi, "\\'Y", i, nr); i<-i+1; { "Yacute"}
draw.vf.cell(tf, fi, "\\ss", i, nr); i<-i+1; { "germandbls"} # WRONG!
draw.vf.cell(tf, fi, "\\`a", i, nr); i<-i+1; { "agrave"}
draw.vf.cell(tf, fi, "\\'a", i, nr); i<-i+1; { "aacute"}
draw.vf.cell(tf, fi, "\\^a", i, nr); i<-i+1; { "acircumflex"}
draw.vf.cell(tf, fi, "\\~a", i, nr); i<-i+1; { "atilde"}
draw.vf.cell(tf, fi, "\\:a", i, nr); i<-i+1; { "adieresis"}
draw.vf.cell(tf, fi, "\\oa", i, nr); i<-i+1; { "aring"}
draw.vf.cell(tf, fi, "\\ae", i, nr); i<-i+1; { "ae"}
draw.vf.cell(tf, fi, "\\,c", i, nr); i<-i+1; { "ccedilla"}
draw.vf.cell(tf, fi, "\\`e", i, nr); i<-i+1; { "egrave"}
draw.vf.cell(tf, fi, "\\'e", i, nr); i<-i+1; { "eacute"}
draw.vf.cell(tf, fi, "\\^e", i, nr); i<-i+1; { "ecircumflex"}
draw.vf.cell(tf, fi, "\\:e", i, nr); i<-i+1; { "edieresis"}
draw.vf.cell(tf, fi, "\\`i", i, nr); i<-i+1; { "igrave"}
draw.vf.cell(tf, fi, "\\'i", i, nr); i<-i+1; { "iacute"}
draw.vf.cell(tf, fi, "\\^i", i, nr); i<-i+1; { "icircumflex"}
draw.vf.cell(tf, fi, "\\:i", i, nr); i<-i+1; { "idieresis"}
draw.vf.cell(tf, fi, "\\~n", i, nr); i<-i+1; { "ntilde"}
draw.vf.cell(tf, fi, "\\`o", i, nr); i<-i+1; { "ograve"}
draw.vf.cell(tf, fi, "\\'o", i, nr); i<-i+1; { "oacute"}
draw.vf.cell(tf, fi, "\\^o", i, nr); i<-i+1; { "ocircumflex"}
draw.vf.cell(tf, fi, "\\~o", i, nr); i<-i+1; { "otilde"}
draw.vf.cell(tf, fi, "\\:o", i, nr); i<-i+1; { "odieresis"}
draw.vf.cell(tf, fi, "\\di", i, nr); i<-i+1; { "divide"}
draw.vf.cell(tf, fi, "\\/o", i, nr); i<-i+1; { "oslash"}
draw.vf.cell(tf, fi, "\\`u", i, nr); i<-i+1; { "ugrave"}
draw.vf.cell(tf, fi, "\\'u", i, nr); i<-i+1; { "uacute"}
draw.vf.cell(tf, fi, "\\^u", i, nr); i<-i+1; { "ucircumflex"}
draw.vf.cell(tf, fi, "\\:u", i, nr); i<-i+1; { "udieresis"}
draw.vf.cell(tf, fi, "\\'y", i, nr); i<-i+1; { "yacute"}
draw.vf.cell(tf, fi, "\\:y", i, nr); i<-i+1; { "ydieresis"}

nr <- 25
nc <- 2
make.table(nr, nc)
i <- 0
draw.title("Special Escape Sequences", i, nr, nc)
draw.vf.cell(tf, fi, "\\AR", i, nr); i<-i+1; { "aries"}
draw.vf.cell(tf, fi, "\\TA", i, nr); i<-i+1; { "taurus"}
draw.vf.cell(tf, fi, "\\GE", i, nr); i<-i+1; { "gemini"}
draw.vf.cell(tf, fi, "\\CA", i, nr); i<-i+1; { "cancer"}
draw.vf.cell(tf, fi, "\\LE", i, nr); i<-i+1; { "leo"}
draw.vf.cell(tf, fi, "\\VI", i, nr); i<-i+1; { "virgo"}
draw.vf.cell(tf, fi, "\\LI", i, nr); i<-i+1; { "libra"}
draw.vf.cell(tf, fi, "\\SC", i, nr); i<-i+1; { "scorpio"}
draw.vf.cell(tf, fi, "\\SG", i, nr); i<-i+1; { "sagittarius"}
draw.vf.cell(tf, fi, "\\CP", i, nr); i<-i+1; { "capricornus"}
draw.vf.cell(tf, fi, "\\AQ", i, nr); i<-i+1; { "aquarius"}
draw.vf.cell(tf, fi, "\\PI", i, nr); i<-i+1; { "pisces"}
draw.vf.cell(tf, fi, "\\~-", i, nr); i<-i+1; { "modifiedcongruent"}
draw.vf.cell(tf, fi, "\\hb", i, nr); i<-i+1; { "hbar"}
draw.vf.cell(tf, fi, "\\IB", i, nr); i<-i+1; { "interbang"}
draw.vf.cell(tf, fi, "\\Lb", i, nr); i<-i+1; { "lambdabar"}
draw.vf.cell(tf, fi, "\\UD", i, nr); i<-i+1; { "undefined"}
draw.vf.cell(tf, fi, "\\SO", i, nr); i<-i+1; { "sun"}
draw.vf.cell(tf, fi, "\\ME", i, nr); i<-i+1; { "mercury"}
draw.vf.cell(tf, fi, "\\VE", i, nr); i<-i+1; { "venus"}
draw.vf.cell(tf, fi, "\\EA", i, nr); i<-i+1; { "earth"}
draw.vf.cell(tf, fi, "\\MA", i, nr); i<-i+1; { "mars"}
draw.vf.cell(tf, fi, "\\JU", i, nr); i<-i+1; { "jupiter"}
draw.vf.cell(tf, fi, "\\SA", i, nr); i<-i+1; { "saturn"}
draw.vf.cell(tf, fi, "\\UR", i, nr); i<-i+1; { "uranus"}
draw.vf.cell(tf, fi, "\\NE", i, nr); i<-i+1; { "neptune"}
draw.vf.cell(tf, fi, "\\PL", i, nr); i<-i+1; { "pluto"}
draw.vf.cell(tf, fi, "\\LU", i, nr); i<-i+1; { "moon"}
draw.vf.cell(tf, fi, "\\CT", i, nr); i<-i+1; { "comet"}
draw.vf.cell(tf, fi, "\\ST", i, nr); i<-i+1; { "star"}
draw.vf.cell(tf, fi, "\\AS", i, nr); i<-i+1; { "ascendingnode"}
draw.vf.cell(tf, fi, "\\DE", i, nr); i<-i+1; { "descendingnode"}
draw.vf.cell(tf, fi, "\\s-", i, nr); i<-i+1; { "s1"}
draw.vf.cell(tf, fi, "\\dg", i, nr); i<-i+1; { "dagger"}
draw.vf.cell(tf, fi, "\\dd", i, nr); i<-i+1; { "daggerdbl"}
draw.vf.cell(tf, fi, "\\li", i, nr); i<-i+1; { "line integral"}
draw.vf.cell(tf, fi, "\\-+", i, nr); i<-i+1; { "minusplus"}
draw.vf.cell(tf, fi, "\\||", i, nr); i<-i+1; { "parallel"}
draw.vf.cell(tf, fi, "\\rn", i, nr); i<-i+1; { "overscore"}
draw.vf.cell(tf, fi, "\\ul", i, nr); i<-i+1; { "underscore"}

nr <- 25
nc <- 3
make.table(nr, nc)
## octal escape codes, as decimals
code <- c(300:307,310:317,320:327,330:337,340:347,350:357,360:367,370:377,
          243,263)
ocode <- 64*(code%/%100) + 8*(code%/%10)%%10 + code%%10
string <- rawToChar(as.raw(ocode), multiple=TRUE)
draw.title("Cyrillic Octal Codes", i = 0, nr ,nc)
for (i in 1:66)
    draw.vf.cell(tf, "cyrillic", string[i], i-1, nr,
                 raw.string=paste0("\\", as.character(code[i])))

nr <- 25
nc <- 3
make.table(nr, nc)
code <- c(252,254,256,262:269,275,278:281,284,745,746,750:768,796:802,
          804:807,809,814:828,830:834,840:844)
draw.title("Raw Hershey Escape Sequences", i=0, nr, nc)
for (i in 1:75)
    draw.vf.cell(tf, fi, paste0("\\#H",formatC(code[i],wid=4,flag="0")),
                 i-1, nr)
make.table(nr, nc)
code <- c(845:847,850:856,860:874,899:909,2296:2299,2318:2332,2367:2382,
          4014,4109)
draw.title("More Raw Hershey Escape Sequences", i=0, nr, nc)
for (i in 1:73)
    draw.vf.cell(tf, fi, paste0("\\#H",formatC(code[i],wid=4,flag="0")),
                 i-1, nr)

par(oldpar)
