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Up to [local] / src / usr.bin / mandoc

Parse and ignore the \k, \o, \w, and \z roff escapes, and recursively
ignore embedded escapes and mathematical roff subexpressions.
In roff copy mode, resolve "\\" to '\'.
Allow ".xx\}" where xx is a macro to close roff conditional scope.
Mandoc now handles the special character definitions in the pod2man(1)
preamble, so remove the explicit redefinitions in chars.c/chars.in.
From kristaps@.

I have checked that this causes no relevant change to the Perl manuals.
The only change introduced is that some non-ASCII characters rendered
incorrectly before are now rendered incorrectly in a different way.
For example, e accent aigu was "e", now is "e'"
and c cedille was "c", now is "c,".

/*	$Id: chars.in,v 1.12 2010/09/13 22:04:01 schwarze Exp $ */
/*
 * Copyright (c) 2009, 2010 Kristaps Dzonsons <kristaps@bsd.lv>
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

/*
 * The ASCII translation tables.  STRING corresponds to predefined
 * strings (cf. mdoc_samples.7 and tmac/mdoc/doc-nroff).  CHAR
 * corresponds to special characters (cf. groff_char.7).  BOTH contains
 * sequences that are equivalent in both STRING and CHAR.
 *
 * Either way, the left-hand side corresponds to the input sequence (\x,
 * \(xx, \*(xx and so on) whose length is listed second element.  The
 * right-hand side is what's produced by the front-end, with the fourth
 * element being its length.
 *
 * XXX - C-escape strings!
 * XXX - update LINES_MAX if adding more!
 */

/* Non-breaking, non-collapsing space uses unit separator. */
static const char ascii_nbrsp[2] = { ASCII_NBRSP, '\0' };

CHAR_TBL_START

/* Spacing. */
CHAR("c",			"",		0)
CHAR("0",			" ",		8194)
CHAR(" ",			ascii_nbrsp,	160)
CHAR("~",			ascii_nbrsp,	160)
CHAR("%",			"",		0)
CHAR("&",			"",		0)
CHAR("^",			"",		0)
CHAR("|",			"",		0)
CHAR("}",			"",		0)

/* Accents. */
CHAR("a\"",			"\"",		779)
CHAR("a-",			"-",		175)
CHAR("a.",			".",		729)
CHAR("a^",			"^",		770)
BOTH("\'",			"\'",		769)
BOTH("aa",			"\'",		769)
BOTH("ga",			"`",		768)
BOTH("`",			"`",		768)
CHAR("ab",			"`",		774)
CHAR("ac",			",",		807)
CHAR("ad",			"\"",		776)
CHAR("ah",			"v",		711)
CHAR("ao",			"o",		730)
CHAR("a~",			"~",		771)
CHAR("ho",			",",		808)
CHAR("ha",			"^",		94)
CHAR("ti",			"~",		126)

/* Quotes. */
CHAR("Bq",			",,",		8222)
CHAR("bq",			",",		8218)
BOTH("lq",			"``",		8220)
BOTH("rq",			"\'\'",		8221)
CHAR("oq",			"`",		8216)
CHAR("cq",			"\'",		8217)
CHAR("aq",			"\'",		39)
CHAR("dq",			"\"",		34)
CHAR("Fo",			"<<",		171)
CHAR("Fc",			">>",		187)
CHAR("fo",			"<",		8249)
CHAR("fc",			">",		8250)

/* Brackets. */
CHAR("lB",			"[",		91)
CHAR("rB",			"]",		93)
CHAR("lC",			"{",		123)
CHAR("rC",			"}",		125)
CHAR("la",			"<",		60)
CHAR("ra",			">",		62)
CHAR("bv",			"|",		9130)
CHAR("braceex",			"|",		9130)
CHAR("bracketlefttp",		"|",		9121)
CHAR("bracketleftbp",		"|",		9123)
CHAR("bracketleftex",		"|",		9122)
CHAR("bracketrighttp",		"|",		9124)
CHAR("bracketrightbp",		"|",		9126)
CHAR("bracketrightex",		"|",		9125)
CHAR("lt",			",-",		9127)
CHAR("bracelefttp",		",-",		9127)
CHAR("lk",			"{",		9128)
CHAR("braceleftmid",		"{",		9128)
CHAR("lb",			",-",		9129)
CHAR("braceleftbp",		"`-",		9129)
CHAR("braceleftex",		"|",		9130)
CHAR("rt",			"-.",		9131)
CHAR("bracerighttp",		"-.",		9131)
CHAR("rk",			"}",		9132)
CHAR("bracerightmid",		"}",		9132)
CHAR("rb",			"-\'",		9133)
CHAR("bracerightbp",		"-\'",		9133)
CHAR("bracerightex",		"|",		9130)
CHAR("parenlefttp",		"/",		9115)
CHAR("parenleftbp",		"\\",		9117)
CHAR("parenleftex",		"|",		9116)
CHAR("parenrighttp",		"\\",		9118)
CHAR("parenrightbp",		"/",		9120)
CHAR("parenrightex",		"|",		9119)

/* Greek characters. */
CHAR("*A",			"A",		913)
CHAR("*B",			"B",		914)
CHAR("*G",			"|",		915)
CHAR("*D",			"/\\",		916)
CHAR("*E",			"E",		917)
CHAR("*Z",			"Z",		918)
CHAR("*Y",			"H",		919)
CHAR("*H",			"O",		920)
CHAR("*I",			"I",		921)
CHAR("*K",			"K",		922)
CHAR("*L",			"/\\",		923)
CHAR("*M",			"M",		924)
CHAR("*N",			"N",		925)
CHAR("*C",			"H",		926)
CHAR("*O",			"O",		927)
CHAR("*P",			"TT",		928)
CHAR("*R",			"P",		929)
CHAR("*S",			">",		931)
CHAR("*T",			"T",		932)
CHAR("*U",			"Y",		933)
CHAR("*F",			"O_",		934)
CHAR("*X",			"X",		935)
CHAR("*Q",			"Y",		936)
CHAR("*W",			"O",		937)
CHAR("*a",			"a",		945)
CHAR("*b",			"B",		946)
CHAR("*g",			"y",		947)
CHAR("*d",			"d",		948)
CHAR("*e",			"e",		949)
CHAR("*z",			"C",		950)
CHAR("*y",			"n",		951)
CHAR("*h",			"0",		952)
CHAR("*i",			"i",		953)
CHAR("*k",			"k",		954)
CHAR("*l",			"\\",		955)
CHAR("*m",			"u",		956)
CHAR("*n",			"v",		957)
CHAR("*c",			"E",		958)
CHAR("*o",			"o",		959)
CHAR("*p",			"n",		960)
CHAR("*r",			"p",		961)
CHAR("*s",			"o",		963)
CHAR("*t",			"t",		964)
CHAR("*u",			"u",		965)
CHAR("*f",			"o",		981)
CHAR("*x",			"x",		967)
CHAR("*q",			"u",		968)
CHAR("*w",			"w",		969)
CHAR("+h",			"0",		977)
CHAR("+f",			"o",		966)
CHAR("+p",			"w",		982)
CHAR("+e",			"e",		1013)
CHAR("ts",			"s",		962)

/* Accented letters. */
CHAR(",C",			"C",		199)
CHAR(",c",			"c",		231)
CHAR("/L",			"L",		321)
CHAR("/O",			"O",		216)
CHAR("/l",			"l",		322)
CHAR("/o",			"o",		248)
CHAR("oA",			"A",		197)
CHAR("oa",			"a",		229)
CHAR(":A",			"A",		196)
CHAR(":E",			"E",		203)
CHAR(":I",			"I",		207)
CHAR(":O",			"O",		214)
CHAR(":U",			"U",		220)
CHAR(":a",			"a",		228)
CHAR(":e",			"e",		235)
CHAR(":i",			"i",		239)
CHAR(":o",			"o",		245)
CHAR(":u",			"u",		252)
CHAR(":y",			"y",		255)
CHAR("\'A",			"A",		193)
CHAR("\'E",			"E",		201)
CHAR("\'I",			"I",		205)
CHAR("\'O",			"O",		211)
CHAR("\'U",			"U",		218)
CHAR("\'a",			"a",		225)
CHAR("\'e",			"e",		233)
CHAR("\'i",			"i",		237)
CHAR("\'o",			"o",		243)
CHAR("\'u",			"u",		250)
CHAR("^A",			"A",		194)
CHAR("^E",			"E",		202)
CHAR("^I",			"I",		206)
CHAR("^O",			"O",		212)
CHAR("^U",			"U",		219)
CHAR("^a",			"a",		226)
CHAR("^e",			"e",		234)
CHAR("^i",			"i",		238)
CHAR("^o",			"o",		244)
CHAR("^u",			"u",		251)
CHAR("`A",			"A",		192)
CHAR("`E",			"E",		200)
CHAR("`I",			"I",		204)
CHAR("`O",			"O",		210)
CHAR("`U",			"U",		217)
CHAR("`a",			"a",		224)
CHAR("`e",			"e",		232)
CHAR("`i",			"i",		236)
CHAR("`o",			"o",		242)
CHAR("`u",			"u",		249)
CHAR("~A",			"A",		195)
CHAR("~N",			"N",		209)
CHAR("~O",			"O",		213)
CHAR("~a",			"a",		227)
CHAR("~n",			"n",		241)
CHAR("~o",			"o",		245)

/* Arrows and lines. */
CHAR("<-",			"<-",		8592)
CHAR("->",			"->",		8594)
CHAR("<>",			"<>",		8596)
CHAR("da",			"v",		8595)
BOTH("ua",			"^",		8593)
BOTH("va",			"^v",		8597)
CHAR("lA",			"<=",		8656)
CHAR("rA",			"=>",		8658)
CHAR("hA",			"<=>",		8660)
CHAR("dA",			"v",		8659)
CHAR("uA",			"^",		8657)
CHAR("vA",			"^=v",		8661)

/* Logic. */
CHAR("AN",			"^",		8743)
CHAR("OR",			"v",		8744)
CHAR("no",			"~",		172)
CHAR("tno",			"~",		172)
CHAR("te",			"3",		8707)
CHAR("fa",			"V",		8704)
CHAR("st",			"-)",		8715)
CHAR("tf",			".:.",		8756)
CHAR("3d",			".:.",		8756)
CHAR("or",			"|",		124)

/* Mathematicals. */
CHAR("pl",			"+",		43)
CHAR("mi",			"-",		8722)
CHAR("-",			"-",		45)
CHAR("-+",			"-+",		8723)
CHAR("+-",			"+-",		177)
CHAR("t+-",			"+-",		177)
CHAR("pc",			".",		183)
CHAR("md",			".",		8901)
CHAR("mu",			"x",		215)
CHAR("tmu",			"x",		215)
CHAR("c*",			"x",		8855)
CHAR("c+",			"+",		8853)
CHAR("di",			"-:-",		247)
CHAR("tdi",			"-:-",		247)
CHAR("f/",			"/",		8260)
CHAR("**",			"*",		8727)
BOTH("<=",			"<=",		8804)
BOTH(">=",			">=",		8805)
CHAR("<<",			"<<",		8810)
CHAR(">>",			">>",		8811)
CHAR("eq",			"=",		61)
CHAR("!=",			"!=",		8800)
CHAR("==",			"==",		8801)
CHAR("ne",			"!==",		8802)
CHAR("=~",			"=~",		8773)
CHAR("-~",			"-~",		8771)
CHAR("ap",			"~",		8764)
CHAR("~~",			"~~",		8776)
CHAR("~=",			"~=",		8780)
CHAR("pt",			"oc",		8733)
CHAR("es",			"{}",		8709)
CHAR("mo",			"E",		8712)
CHAR("nm",			"!E",		8713)
CHAR("sb",			"(=",		8834)
CHAR("nb",			"(!=",		8836)
CHAR("sp",			"=)",		8835)
CHAR("nc",			"!=)",		8837)
CHAR("ib",			"(=",		8838)
CHAR("ip",			"=)",		8839)
CHAR("ca",			"(^)",		8745)
CHAR("cu",			"U",		8746)
CHAR("/_",			"/_",		8736)
CHAR("pp",			"_|_",		8869)
CHAR("is",			"I",		8747)
CHAR("integral",		"I",		8747)
CHAR("sum",			"E",		8721)
CHAR("product",			"TT",		8719)
CHAR("coproduct",		"U",		8720)
CHAR("gr",			"V",		8711)
CHAR("sr",			"\\/",		8730)
CHAR("sqrt",			"\\/",		8730)
CHAR("lc",			"|~",		8968)
CHAR("rc",			"~|",		8969)
CHAR("lf",			"|_",		8970)
CHAR("rf",			"_|",		8971)
CHAR("if",			"oo",		8734)
CHAR("Ah",			"N",		8501)
CHAR("Im",			"I",		8465)
CHAR("Re",			"R",		8476)
CHAR("pd",			"a",		8706)
CHAR("-h",			"/h",		8463)

/* Ligatures. */
CHAR("ff",			"ff",		64256)
CHAR("fi",			"fi",		64257)
CHAR("fl",			"fl",		64258)
CHAR("Fi",			"ffi",		64259)
CHAR("Fl",			"ffl",		64260)
CHAR("AE",			"AE",		198)
CHAR("ae",			"ae",		230)
CHAR("OE",			"OE",		338)
CHAR("oe",			"oe",		339)
CHAR("ss",			"ss",		223)
CHAR("IJ",			"IJ",		306)
CHAR("ij",			"ij",		307)

/* Special letters. */
CHAR("-D",			"D",		208)
CHAR("Sd",			"o",		240)
CHAR("TP",			"b",		222)
CHAR("Tp",			"b",		254)
CHAR(".i",			"i",		305)
CHAR(".j",			"j",		567)

/* Currency. */
CHAR("Do",			"$",		36)
CHAR("ct",			"c",		162)
CHAR("Eu",			"EUR",		8364)
CHAR("eu",			"EUR",		8364)
CHAR("Ye",			"Y",		165)
CHAR("Po",			"L",		163)
CHAR("Cs",			"x",		164)
CHAR("Fn",			"f",		402)

/* pod2man holdovers. */
STRING("--",			"--",		8212)
STRING("PI",			"pi",		960)
STRING("L\"",			"``",		8220)
STRING("R\"",			"\'\'",		8221)
STRING("C`",			"`",		8216)
STRING("C\'",			"\'",		8217)
STRING("Aq",			"\'",		39)
STRING("^",			"^",		94)
STRING(",",			",",		44)
STRING("~",			"~",		126)
STRING("/",			"/",		47)

/* Old style. */
STRING("Am",			"&",		38)
STRING("Ba",			"|",		124)
STRING("Ge",			">=",		8805)
STRING("Gt",			">",		62)
STRING("If",			"infinity",	0)
STRING("Le",			"<=",		8804)
STRING("Lq",			"``",		8220)
STRING("Lt",			"<",		60)
STRING("Na",			"NaN",		0)
STRING("Ne",			"!=",		8800)
STRING("Pi",			"pi",		960)
STRING("Pm",			"+-",		177)
STRING("R",			"(R)",		174)
STRING("Rq",			"\'\'",		8221)
STRING("Tm",			"tm",		8482)
STRING("left-bracket",		"[",		91)
STRING("left-parenthesis",	"(",		40)
STRING("left-singlequote",	"`",		8216)
STRING("lp",			"(",		40)
STRING("q",			"\"",		34)
STRING("quote-left",		"`",		8216)
STRING("quote-right",		"\'",		8217)
STRING("right-bracket",		"]",		93)
STRING("right-parenthesis",	")",		41)
STRING("right-singlequote",	"\'",		8217)
STRING("rp",			")",		41)

/* Lines. */
CHAR("ba",			"|",		124)
CHAR("br",			"|",		9474)
CHAR("ul",			"_",		95)
CHAR("rl",			"-",		8254)
CHAR("bb",			"|",		166)
CHAR("sl",			"/",		47)
CHAR("rs",			"\\",		92)

/* Text markers. */
CHAR("ci",			"o",		9675)
CHAR("bu",			"o",		8226)
CHAR("dd",			"=",		8225)
CHAR("dg",			"-",		8224)
CHAR("lz",			"<>",		9674)
CHAR("sq",			"[]",		9633)
CHAR("ps",			"9|",		182)
CHAR("sc",			"S",		167)
CHAR("lh",			"<=",		9756)
CHAR("rh",			"=>",		9758)
CHAR("at",			"@",		64)
CHAR("sh",			"#",		35)
CHAR("CR",			"_|",		8629)
CHAR("OK",			"\\/",		10003)

/* Legal symbols. */
CHAR("co",			"(C)",		169)
CHAR("rg",			"(R)",		174)
CHAR("tm",			"tm",		8482)

/* Punctuation. */
CHAR(".",			".",		46)
CHAR("r!",			"i",		161)
CHAR("r?",			"c",		191)
CHAR("em",			"--",		8212)
CHAR("en",			"-",		8211)
CHAR("hy",			"-",		8208)
CHAR("e",			"\\",		92)

/* Units. */
CHAR("de",			"o",		176)
CHAR("%0",			"%o",		8240)
CHAR("fm",			"\'",		8242)
CHAR("sd",			"\"",		8243)
CHAR("mc",			"mu",		181)

CHAR_TBL_END