#pragma prototyped

#include <optlib.h>

#include <debug.h>

#include <ccode.h>

#include <ctype.h>

#include <errno.h>

#define KEEP "*[A-Za-z][A-Za-z]*"

#define OMIT "*@(\\[[-+]*\\?*\\]|\\@\\(#\\)|Copyright \\(c\\)|\\$\\I\\d\\: )*"

#define GO '{' /* group nest open */

#define OG '}' /* group nest close */

#define OPT_WIDTH 80 /* default help text width */

#define OPT_MARGIN 10 /* default help text margin */

#define OPT_USAGE 7 /* usage continuation indent */

#define OPT_flag 0x001 /* flag ( 0 or 1 ) */

#define OPT_hidden 0x002 /* remaining are hidden */

#define OPT_ignorecase 0x004 /* arg match ignores case */

#define OPT_invert 0x008 /* flag inverts long sense */

#define OPT_listof 0x010 /* arg is ' ' or ',' list */

#define OPT_number 0x020 /* arg is strtonll() number */

#define OPT_oneof 0x040 /* arg may be set once */

#define OPT_optional 0x080 /* arg is optional */

#define OPT_string 0x100 /* arg is string */

#define OPT_preformat 0001 /* output preformat string */

#define OPT_proprietary 0002 /* proprietary docs */

#define OPT_TYPE (OPT_flag|OPT_number|OPT_string)

#define STYLE_posix 0 /* posix getopt usage */

#define STYLE_short 1 /* [default] short usage */

#define STYLE_long 2 /* long usage */

#define STYLE_match 3 /* long description of matches */

#define STYLE_options 4 /* short and long descriptions */

#define STYLE_man 5 /* pretty details */

#define STYLE_html 6 /* html details */

#define STYLE_nroff 7 /* nroff details */

#define STYLE_api 8 /* program details */

#define STYLE_keys 9 /* translation key strings */

#define STYLE_usage 10 /* escaped usage string */

#define FONT_BOLD 1

#define FONT_ITALIC 2

#define FONT_LITERAL 4

#define HELP_head 0x01

#define HELP_index 0x02

#define TAG_NONE 0

#define TAG_DIV 1

#define TAG_DL 2

#define SEP(c) ((c)=='-'||(c)=='_')

typedef struct Attr_s

{

const char* name;

int flag;

} Attr_t;

typedef struct Help_s

{

const char* match; /* builtin help match name */

const char* name; /* builtin help name */

int style; /* STYLE_* */

const char* text; /* --? text */

unsigned int size; /* strlen text */

} Help_t;

typedef struct Font_s

{

const char* html[2];

const char* nroff[2];

const char* term[2];

} Font_t;

typedef struct List_s

{

int type; /* { - + : } */

const char* name; /* list name */

const char* text; /* help text */

} List_t;

typedef struct Msg_s

{

const char* text; /* default message text */

Dtlink_t link; /* cdt link */

} Msg_t;

typedef struct Save_s

{

Dtlink_t link; /* cdt link */

char text[1]; /* saved text text */

} Save_t;

typedef struct Push_s

{

struct Push_s* next; /* next string */

char* ob; /* next char in old string */

char* oe; /* end of old string */

char* nb; /* next char in new string */

char* ne; /* end of new string */

int ch; /* localize() translation */

} Push_t;

typedef struct Tag_s

{

unsigned char level; /* indent level */

unsigned char id; /* TAG_* id */

} Tag_t;

typedef struct Indent_s

{

int stop; /* tab column position */

} Indent_t;

static Indent_t indent[] =

{

0,2, 4,10, 12,18, 20,26, 28,34, 36,42, 44,50, 0,0

};

static const char* end[] =

{

"", "</DIV>\n", "</DL>\n"

};

static const char term_off[] = {CC_esc,'[','0','m',0};

static const char term_B_on[] = {CC_esc,'[','1','m',0};

static const char term_I_on[] = {CC_esc,'[','1',';','4','m',0};

static const Font_t fonts[] =

{

"", "", "", "", "", "",

"</B>", "<B>", "\\fP", "\\fB", &term_off[0], &term_B_on[0],

"</I>", "<I>", "\\fP", "\\fI", &term_off[0], &term_I_on[0],

"", "", "", "", "", "",

"</TT>","<TT>","\\fP", "\\f5", "", "",

};

static char native[] = "";

static unsigned char map[UCHAR_MAX];

static Optstate_t state;

#if !_PACKAGE_astsa

#define ID ast.id

#define C(s) ERROR_catalog(s)

#define D(s) (state.msgdict && dtmatch(state.msgdict, (s)))

#define T(i,c,m) (X(c)?translate(i,c,C(m)):(m))

#define X(c) (ERROR_translating()&&(c)!=native)

#define Z(x) C(x),sizeof(x)-1

static char*

translate(const char* cmd, const char* cat, const char* msg)

{

if (!X(cat))

return (char*)msg;

if (cat != (const char*)ID && D(msg))

cat = (const char*)ID;

return errorx(NiL, cmd, cat, msg);

}

#else

static char ID[] = "ast";

#define C(s) s

#define D(s) (state.msgdict && dtmatch(state.msgdict, (s)))

#define T(i,c,m) m

#define X(c) 0

#define Z(x) C(x),sizeof(x)-1

#endif

static const List_t help_head[] =

{

'-', 0,

0,

'+', C("NAME"),

C("options available to all \bast\b commands"),

'+', C("DESCRIPTION"),

C("\b-?\b and \b--?\b* options are the same \

standard error."),

};

static const Help_t styles[] =

{

C("about"), "-", STYLE_match,

Z("List all implementation info."),

C("api"), "?api", STYLE_api,

Z("List detailed info in program readable form."),

C("help"), "", -1,

Z("List detailed help option info."),

C("html"), "?html", STYLE_html,

Z("List detailed info in html."),

C("keys"), "?keys", STYLE_keys,

Z("List the usage translation key strings with C style escapes."),

C("long"), "?long", STYLE_long,

Z("List long option usage."),

C("man"), "?man", STYLE_man,

Z("List detailed info in displayed man page form."),

C("nroff"), "?nroff", STYLE_nroff,

Z("List detailed info in nroff."),

C("options"), "?options", STYLE_options,

Z("List short and long option details."),

C("posix"), "?posix", STYLE_posix,

Z("List posix getopt usage."),

C("short"), "?short", STYLE_short,

Z("List short option usage."),

C("usage"), "?usage", STYLE_usage,

Z("List the usage string with C style escapes."),

};

static const List_t help_tail[] =

{

':', C("\?\?-\alabel\a"),

C("List implementation info matching \alabel\a*."),

':', C("\?\?\aname\a"),

C("Equivalent to \b--help=\b\aname\a."),

':', C("\?\?"),

C("Equivalent to \b--\?\?options\b."),

':', C("\?\?\?\?"),

C("Equivalent to \b--\?\?man\b."),

':', C("\?\?\?\?\?\?"),

C("Equivalent to \b--\?\?help\b."),

':', C("\?\?\?\?\?\?\aitem\a"),

C("If the next argument is \b--\b\aoption\a then list \

if not."),

':', C("\?\?\?\?\?\?ESC"),

C("Emit escape codes even if output is not a terminal."),

':', C("\?\?\?\?\?\?MAN[=\asection\a]]"),

C("List the \bman\b(1) section title for \asection\a [the \

current command]]."),

':', C("\?\?\?\?\?\?SECTION"),

C("List the \bman\b(1) section number for the current command."),

':', C("\?\?\?\?\?\?TEST"),

C("Massage the output for regression testing."),

};

static const Attr_t attrs[] =

{

"flag", OPT_flag,

"hidden", OPT_hidden,

"ignorecase", OPT_ignorecase,

"invert", OPT_invert,

"listof", OPT_listof,

"number", OPT_number,

"oneof", OPT_oneof,

"optional", OPT_optional,

"string", OPT_string,

};

static const char unknown[] = C("unknown option or attribute");

static const char* heading[] =

{

C("INDEX"),

C("USER COMMANDS"),

C("SYSTEM LIBRARY"),

C("USER LIBRARY"),

C("FILE FORMATS"),

C("MISCELLANEOUS"),

C("GAMES and DEMOS"),

C("SPECIAL FILES"),

C("ADMINISTRATIVE COMMANDS"),

C("GUIs"),

};

static Msg_t C_LC_MESSAGES_libast[] =

{

{ C("APPLICATION USAGE") },

{ C("ASYNCHRONOUS EVENTS") },

{ C("BUGS") },

{ C("CAVEATS") },

{ C("CONSEQUENCES OF ERRORS") },

{ C("DESCRIPTION") },

{ C("ENVIRONMENT VARIABLES") },

{ C("EXAMPLES") },

{ C("EXIT STATUS") },

{ C("EXTENDED DESCRIPTION") },

{ C("INPUT FILES") },

{ C("LIBRARY") },

{ C("NAME") },

{ C("OPERANDS") },

{ C("OPTIONS") },

{ C("OUTPUT FILES") },

{ C("PLUGIN") },

{ C("SEE ALSO") },

{ C("STDERR") },

{ C("STDIN") },

{ C("STDOUT") },

{ C("SYNOPSIS") },

{ C("author") },

{ C("copyright") },

{ C("license") },

{ C("name") },

{ C("path") },

{ C("version") },

};

#if _BLD_ast && defined(__EXPORT__)

#define extern extern __EXPORT__

#endif

extern Opt_t _opt_info_;

Opt_t _opt_info_ = { 0,0,0,0,0,0,0,{0},{0},0,0,0,{0},{0},&state };

#undef extern

__EXTERN__(Opt_t, _opt_info_);

__EXTERN__(Opt_t*, _opt_infop_);

Opt_t* _opt_infop_ = &_opt_info_;

Optstate_t*

optstate(Opt_t* p)

{

return &state;

}

#if DEBUG || _BLD_DEBUG

static char*

show(register char* s)

{

register int c;

register char* t;

register char* e;

static char buf[32];

if (!s)

return "(null)";

t = buf;

e = buf + sizeof(buf) - 2;

while (t < e)

{

switch (c = *s++)

{

case 0:

goto done;

case '\a':

*t++ = '\\';

c = 'a';

break;

case '\b':

*t++ = '\\';

c = 'b';

break;

case '\f':

*t++ = '\\';

c = 'f';

break;

case '\n':

*t++ = '\\';

c = 'n';

break;

case '\t':

*t++ = '\\';

c = 't';

break;

case '\v':

*t++ = '\\';

c = 'v';

break;

}

*t++ = c;

}

done:

*t = 0;

return buf;

}

#endif

typedef struct Section_s

{

const char section[4];

const char* name;

} Section_t;

static const Section_t sections[] =

{

"1M", "MAKE ASSERTION OPERATORS AND RULES",

"1", "USER COMMANDS",

"2", "SYSTEM CALLS",

"3F", "FORTRAN LIBRARY ROUTINES",

"3K", "KERNEL VM LIBRARY FUNCTIONS",

"3L", "LIGHTWEIGHT PROCESSES LIBRARY",

"3M", "MATHEMATICAL LIBRARY",

"3N", "NETWORK FUNCTIONS",

"3R", "RPC SERVICES LIBRARY",

"3S", "STANDARD I/O FUNCTIONS",

"3V", "SYSTEM V LIBRARY",

"3", "C LIBRARY FUNCTIONS",

"4F", "PROTOCOL FAMILIES",

"4P", "PROTOCOLS",

"4", "DEVICES AND NETWORK INTERFACES",

"5P", "PLUGINS",

"5", "FILE FORMATS",

"6", "GAMES AND DEMOS",

"7", "PUBLIC FILES AND TABLES",

"8", "ADMINISTRATIVE COMMANDS",

"L", "LOCAL COMMANDS",

};

static char*

secname(char* section)

{

int i;

char* b;

char* t;

const char* s;

b = t = fmtbuf(64);

if (section[1])

{

switch (section[2] ? section[2] : section[1])

{

case 'C':

s = "COMPATIBILITY ";

break;

case 'U':

s = "UWIN ";

break;

case 'X':

s = "MISCELLANEOUS ";

break;

default:

s = 0;

break;

}

if (s)

t = strcopy(t, s);

}

s = 0;

for (i = 0; i < elementsof(sections); i++)

if (section[0] == sections[i].section[0] && (section[1] == sections[i].section[1] || !sections[i].section[1]))

{

s = sections[i].name;

break;

}

if (!s)

{

t = strcopy(t, "SECTION ");

s = section;

}

strcopy(t, s);

return b;

}

static Push_t*

pop(register Push_t* psp)

{

register Push_t* tsp;

while (tsp = psp)

{

psp = psp->next;

free(tsp);

}

return 0;

}

static char*

next(register char* s, int version)

{

register char* b;

while (*s == '\t' || *s == '\r' || version >= 1 && *s == ' ')

s++;

if (*s == '\n')

{

b = s;

while (*++s == ' ' || *s == '\t' || *s == '\r');

if (*s == '\n')

return b;

}

return s;

}

static char*

skip(register char* s, register int t1, register int t2, register int t3, register int n, register int b, int past, int version)

{

register int c;

register int on = n;

register int ob = b;

if (version < 1)

{

n = n >= 1;

for (;;)

{

switch (*s++)

{

case 0:

break;

case '[':

n++;

continue;

case ']':

if (--n <= 0)

break;

continue;

default:

continue;

}

break;

}

}

else while (c = *s++)

{

message((-22, "optget: skip t1=%c t2=%c t3=%c n=%d b=%d `%s'", t1 ? t1 : '@', t2 ? t2 : '@', t3 ? t3 : '@', n, b, show(s - 1)));

if (c == '[')

{

if (!n)

n = 1;

}

else if (c == ']')

{

if (n)

{

if (*s == ']')

s++;

else if (on == 1)

break;

else

n = 0;

}

}

else if (c == GO)

{

if (n == 0)

b++;

}

else if (c == OG)

{

if (n == 0 && b-- == ob)

break;

}

else if (c == '?')

{

if (n == 1)

{

if (*s == '?')

s++;

else

{

if (n == on && (c == t1 || c == t2 || c == t3))

break;

n = 2;

}

}

}

else if (n == on && (c == t1 || c == t2 || c == t3))

{

if (n == 1 && c == ':' && *s == c)

s++;

else

break;

}

}

return past && *(s - 1) ? next(s, version) : s - 1;

}

static char*

nest(register char* s)

{

int n;

n = 0;

for (;;)

{

switch (*s++)

{

case '(':

n++;

continue;

case ')':

if (!--n)

break;

continue;

default:

continue;

}

break;

}

return s;

}

static int

match(char* s, char* t, int version, const char* id, const char* catalog)

{

register char* w;

register char* x;

char* xw;

char* ww;

int n;

int v;

int j;

for (n = 0; n < 2; n++)

{

if (n)

x = t;

else

{

if (catalog)

{

w = skip(t, ':', '?', 0, 1, 0, 0, version);

w = sfprints("%-.*s", w - t, t);

x = T(id, catalog, w);

if (x == w)

continue;

}

x = T(NiL, ID, t);

if (x == t)

continue;

}

do

{

v = 0;

xw = x;

w = ww = s;

while (*x && *w)

{

if (isupper(*x))

xw = x;

if (isupper(*w))

ww = w;

if (*x == '*' && !v++ || *x == '\a')

{

if (*x == '\a')

do

{

if (!*++x)

{

x--;

break;

}

} while (*x != '\a');

j = *(x + 1);

if (j == ':' || j == '|' || j == '?' || j == ']' || j == 0)

while (*w)

w++;

}

else if (SEP(*x))

xw = ++x;

else if (SEP(*w) && w != s)

ww = ++w;

else if (*x == *w)

{

x++;

w++;

}

else if (w == ww && x == xw)

break;

else

{

if (x != xw)

{

while (*x && !SEP(*x) && !isupper(*x))

x++;

if (!*x)

break;

if (SEP(*x))

x++;

xw = x;

}

while (w > ww && *w != *x)

w--;

}

}

if (!*w)

{

if (!v)

{

for (;;)

{

switch (*x++)

{

case 0:

case ':':

case '|':

case '?':

case ']':

return 1;

case '*':

break;

default:

continue;

}

break;

}

break;

}

return 1;

}

} while (*(x = skip(x, '|', 0, 0, 1, 0, 0, version)) == '|' && x++);

}

return 0;

}

static void*

search(const void* tab, size_t num, size_t siz, char* s)

{

register char* p;

register char* e;

for (e = (p = (char*)tab) + num * siz; p < e; p += siz)

if (match(s, *((char**)p), -1, NiL, NiL))

return (void*)p;

return 0;

}

static char*

save(const char* ap, size_t az, const char* bp, size_t bz, const char* cp, size_t cz)

{

char* b;

char* e;

const char* ep;

Save_t* p;

Dtdisc_t* d;

char buf[1024];

static Dt_t* dict;

if (!dict)

{

if (!(d = newof(0, Dtdisc_t, 1, 0)))

return (char*)ap;

d->key = offsetof(Save_t, text);

if (!(dict = dtopen(d, Dtset)))

return (char*)ap;

}

b = buf;

e = b + sizeof(buf) - 1;

for (ep = ap + az; b < e && ap < ep; *b++ = *ap++);

if (bp)

{

for (ep = bp + bz; b < e && bp < ep; *b++ = *bp++);

if (cp)

for (ep = cp + cz; b < e && cp < ep; *b++ = *cp++);

}

*b = 0;

if (!(p = (Save_t*)dtmatch(dict, buf)))

{

if (!(p = newof(0, Save_t, 1, b - buf)))

return (char*)ap;

strcpy(p->text, buf);

dtinsert(dict, p);

}

return p->text;

}

static char*

expand(register char* s, register char* e, char** p, Sfio_t* ip, char* id)

{

register int c;

register char* b = s;

int n;

n = sfstrtell(ip);

c = 1;

while ((!e || s < e) && (c = *s++) && c != '\f');

sfwrite(ip, b, s - b - 1);

sfputc(ip, 0);

b = sfstrbase(ip) + n;

n = sfstrtell(ip);

if (!c)

s--;

if (*b == '?')

{

if (!*++b || streq(b, "NAME"))

{

if (!(b = id))

b = "command";

sfstrseek(ip, 0, SEEK_SET);

sfputr(ip, b, -1);

n = 0;

}

else

n = 1;

}

else if (!opt_info.disc || !opt_info.disc->infof || (*opt_info.disc->infof)(&opt_info, ip, b, opt_info.disc) < 0)

n = 0;

*p = s;

if (s = sfstruse(ip))

s += n;

else

s = "error";

return s;

}

static void

initdict(void)

{

register int n;

state.vp = sfstropen();

state.msgdisc.key = offsetof(Msg_t, text);

state.msgdisc.size = -1;

state.msgdisc.link = offsetof(Msg_t, link);

if (state.msgdict = dtopen(&state.msgdisc, Dtset))

for (n = 0; n < elementsof(C_LC_MESSAGES_libast); n++)

dtinsert(state.msgdict, C_LC_MESSAGES_libast + n);

}

static int

init(register char* s, Optpass_t* p)

{

register char* t;

register char* u;

register int c;

register int a;

register int n;

char* e;

int l;

if (!state.localized)

{

state.localized = 1;

#if !_PACKAGE_astsa

if (!ast.locale.serial)

setlocale(LC_ALL, "");

#endif

state.xp = sfstropen();

if (!map[OPT_FLAGS[0]])

for (n = 0, t = OPT_FLAGS; *t; t++)

map[*t] = ++n;

}

#if _BLD_DEBUG

error(-2, "optget debug");

#endif

p->oopts = s;

p->version = 0;

p->prefix = 2;

p->section[0] = '1';

p->section[1] = 0;

p->flags = 0;

p->id = error_info.id;

p->catalog = 0;

s = next(s, 0);

if (*s == ':')

s++;

if (*s == '+')

s++;

s = next(s, 0);

if (*s++ == '[')

{

if (*s == '+')

p->version = 1;

else if (*s++ == '-')

{

if (*s == '?' || *s == ']')

p->version = 1;

else

{

if (!isdigit(*s))

p->version = 1;

else

while (isdigit(*s))

p->version = p->version * 10 + (*s++ - '0');

while (*s && *s != ']')

{

if ((c = *s++) == '?')

{

p->release = s;

while (*s && *s != ']')

if (isspace(*s++))

p->release = s;

break;

}

else if (!isdigit(*s))

n = 1;

else

{

n = 0;

while (isdigit(*s))

n = n * 10 + (*s++ - '0');

}

switch (c)

{

case '+':

p->flags |= OPT_plus;

break;

case 'a':

p->flags |= OPT_append;

break;

case 'c':

p->flags |= OPT_cache;

break;

case 'i':

p->flags |= OPT_ignore;

break;

case 'l':

p->flags |= OPT_long;

break;

case 'm':

p->flags |= OPT_module;

break;

case 'n':

p->flags |= OPT_numeric;

break;

case 'o':

p->flags |= OPT_old;

break;

case 'p':

p->prefix = n;

break;

case 's':

if (n > 1 && n < 5)

{

p->flags |= OPT_functions;

p->prefix = 0;

}

p->section[0] = '0' + (n % 10);

n = 1;

if (isupper(*s))

p->section[n++] = *s++;

if (isupper(*s))

p->section[n++] = *s++;

p->section[n] = 0;

break;

}

}

}

}

while (*s)

if (*s++ == ']')

{

while (isspace(*s))

s++;

if (*s++ == '[')

{

if (*s++ != '-')

{

l = 0;

if (strneq(s - 1, "+NAME?", 6) && (s += 5) || strneq(s - 1, "+LIBRARY?", 9) && (s += 8) && (l = 1) || strneq(s - 1, "+PLUGIN?", 8) && (s += 7) && (l = 1))

{

for (; *s == '\a' || *s == '\b' || *s == '\v' || *s == ' '; s++);

if (*s == '\f')

{

if (*(s + 1) == '?' && *(s + 2) == '\f')

break;

s = expand(s + 1, NiL, &e, state.xp, p->id);

}

for (t = s; *t && *t != ' ' && *t != ']'; t++);

if (t > s)

{

u = t;

if (*(t - 1) == '\a' || *(t - 1) == '\b' || *(t - 1) == '\v')

t--;

if (t > s)

{

while (*u == ' ' || *u == '\\')

u++;

if (*u == '-' || *u == ']')

{

if (!l)

p->id = save(s, t - s, 0, 0, 0, 0);

else if ((a = strlen(p->id)) <= (n = t - s) || strncmp(p->id + a - n, s, n) || *(p->id + a - n - 1) != ':')

p->id = save(p->id, strlen(p->id), "::", 2, s, t - s);

}

}

}

}

break;

}

if (*s == '-')

s++;

if (strneq(s, "catalog?", 8))

p->catalog = s += 8;

}

}

}

if (!error_info.id)

{

if (!(error_info.id = p->id))

p->id = "command";

}

else if (p->id == error_info.id)

p->id = save(p->id, strlen(p->id), 0, 0, 0, 0);

if (s = p->catalog)

p->catalog = ((t = strchr(s, ']')) && (!p->id || (t - s) != strlen(p->id) || !strneq(s, p->id, t - s))) ? save(s, t - s, 0, 0, 0, 0) : (char*)0;

if (!p->catalog)

{

if (opt_info.disc && opt_info.disc->catalog && (!p->id || !streq(opt_info.disc->catalog, p->id)))

p->catalog = opt_info.disc->catalog;

else

p->catalog = ID;

}

s = p->oopts;

if (*s == ':')

s++;

if (*s == '+')

{

s++;

p->flags |= OPT_plus;

}

s = next(s, 0);

if (*s != '[')

for (t = s, a = 0; *t; t++)

if (!a && *t == '-')

{

p->flags |= OPT_minus;

break;

}

else if (*t == '[')

a++;

else if (*t == ']')

a--;

if (!p->version && (t = strchr(s, '(')) && strchr(t, ')') && (state.cp || (state.cp = sfstropen())))

{

/*

p->version = 1;

for (t = p->oopts; t < s; t++)

sfputc(state.cp, *t);

n = t - p->oopts;

sfputc(state.cp, '[');

sfputc(state.cp, '-');

sfputc(state.cp, ']');

c = *s++;

while (c)

{

sfputc(state.cp, '[');

sfputc(state.cp, c);

if (a = (c = *s++) == ':')

c = *s++;

if (c == '(')

{

sfputc(state.cp, ':');

for (;;)

{

while ((c = *s++) && c != ')')

sfputc(state.cp, c);

if (!c || (c = *s++) != '(')

break;

sfputc(state.cp, '|');

}

}

sfputc(state.cp, ']');

if (a)

sfputr(state.cp, ":[string]", -1);

}

if (!(p->oopts = s = sfstruse(state.cp)))

return -1;

s += n;

}

p->opts = s;

message((-2, "version=%d prefix=%d section=%s flags=%04x id=%s catalog=%s oopts=%p", p->version, p->prefix, p->section, p->flags, p->id, p->catalog, p->oopts));

return 0;

}

static const char*

font(int f, int style, int set)

{

switch (style)

{

case STYLE_html:

return fonts[f].html[set];

case STYLE_nroff:

return fonts[f].nroff[set];

case STYLE_short:

case STYLE_long:

case STYLE_posix:

case STYLE_api:

break;

default:

if (state.emphasis > 0)

return fonts[f].term[set];

break;

}

return "";

}

static Push_t*

info(Push_t* psp, char* s, char* e, Sfio_t* ip, char* id)

{

register char* b;

int n;

Push_t* tsp;

static Push_t push;

b = expand(s, e, &s, ip, id);

n = strlen(b);

if (tsp = newof(0, Push_t, 1, n + 1))

{

tsp->nb = (char*)(tsp + 1);

tsp->ne = tsp->nb + n;

strcpy(tsp->nb, b);

}

else

tsp = &push;

tsp->next = psp;

tsp->ob = s;

tsp->oe = e;

return tsp;

}

static Push_t*

localize(Push_t* psp, char* s, char* e, int term, int n, Sfio_t* ip, int version, char* id, char* catalog)

{

char* t;

char* u;

Push_t* tsp;

int c;

t = skip(s, term, 0, 0, n, 0, 0, version);

if (e && t > e)

t = e;

while (s < t)

{

switch (c = *s++)

{

case ':':

case '?':

if (term && *s == c)

s++;

break;

case ']':

if (*s == c)

s++;

break;

}

sfputc(ip, c);

}

if (!(s = sfstruse(ip)) || (u = T(id, catalog, s)) == s)

return 0;

n = strlen(u);

if (tsp = newof(0, Push_t, 1, n + 1))

{

tsp->nb = (char*)(tsp + 1);

tsp->ne = tsp->nb + n;

strcpy(tsp->nb, u);

tsp->ob = t;

tsp->oe = e;

tsp->ch = 1;

}

tsp->next = psp;

return tsp;

}

static int

label(register Sfio_t* sp, int sep, register char* s, int about, int z, int level, int style, int f, Sfio_t* ip, int version, char* id, char* catalog)

{

register int c;

register char* t;

register char* e;

int ostyle;

int a;

int i;

char* p;

char* q;

char* w;

char* y;

int va;

Push_t* tsp;

int r = 0;

int n = 1;

Push_t* psp = 0;

if ((ostyle = style) > (STYLE_nroff - (sep <= 0)) && f != FONT_LITERAL && f >= 0)

style = 0;

if (z < 0)

e = s + strlen(s);

else

e = s + z;

if (sep > 0)

{

if (sep == ' ' && style == STYLE_nroff)

sfputc(sp, '\\');

sfputc(sp, sep);

}

sep = !sep || z < 0;

va = 0;

y = 0;

if (about)

sfputc(sp, '(');

if (version < 1)

{

a = 0;

for (;;)

{

if (s >= e)

return r;

switch (c = *s++)

{

case '[':

a++;

break;

case ']':

if (--a < 0)

return r;

break;

}

sfputc(sp, c);

}

}

else if (level && (*(p = skip(s, 0, 0, 0, 1, level, 1, version)) == ':' || *p == '#'))

{

va = 0;

if (*++p == '?' || *p == *(p - 1))

{

p++;

va |= OPT_optional;

}

if (*(p = next(p, version)) == '[')

y = p + 1;

}

if (X(catalog) && (!level || *s == '\a' || *(s - 1) != '+') &&

(tsp = localize(psp, s, e, (sep || level) ? '?' : 0, sep || level, ip, version, id, catalog)))

{

psp = tsp;

s = psp->nb;

e = psp->ne;

r = psp->ch > 0;

}

switch (*s)

{

case '\a':

if (f == FONT_ITALIC || f < 0)

s++;

if (f > 0)

f = 0;

break;

case '\b':

if (f == FONT_BOLD || f < 0)

s++;

if (f > 0)

f = 0;

break;

case '\v':

if (f == FONT_LITERAL || f < 0)

s++;

if (f > 0)

f = 0;

break;

default:

if (f > 0)

sfputr(sp, font(f, style, 1), -1);

break;

}

for (;;)

{

if (s >= e)

{

if (!(tsp = psp))

goto restore;

s = psp->ob;

e = psp->oe;

psp = psp->next;

free(tsp);

continue;

}

switch (c = *s++)

{

case '(':

if (n)

{

n = 0;

if (f > 0)

{

sfputr(sp, font(f, style, 0), -1);

f = 0;

}

}

break;

case '?':

case ':':

case ']':

if (psp && psp->ch)

break;

if (y)

{

if (va & OPT_optional)

sfputc(sp, '[');

sfputc(sp, '=');

label(sp, 0, y, 0, -1, 0, style, f >= 0 ? FONT_ITALIC : f, ip, version, id, catalog);

if (va & OPT_optional)

sfputc(sp, ']');

y = 0;

}

switch (c)

{

case '?':

if (*s == '?')

s++;

else if (*s == ']' && *(s + 1) != ']')

continue;

else if (sep)

goto restore;

else if (X(catalog) && (tsp = localize(psp, s, e, 0, 1, ip, version, id, catalog)))

{

psp = tsp;

s = psp->nb;

e = psp->ne;

}

break;

case ']':

if (sep && *s++ != ']')

goto restore;

break;

case ':':

if (sep && *s++ != ':')

goto restore;

break;

}

break;

case '\a':

a = FONT_ITALIC;

setfont:

if (f >= 0)

{

if (f & ~a)

{

sfputr(sp, font(f, style, 0), -1);

f = 0;

}

if (!f && style == STYLE_html)

{

for (t = s; t < e && !isspace(*t) && !iscntrl(*t); t++);

if (*t == c && *++t == '(')

{

w = t;

if (++t < e && isdigit(*t))

while (++t < e && isupper(*t));

if (t < e && *t == ')' && t > w + 1)

{

sfprintf(sp, "<NOBR><A href=\"../man%-.*s/"

, t - w - 1, w + 1

);

for (q = s; q < w - 1; q++)

if (*q == ':' && q < w - 2 && *(q + 1) == ':')

{

sfputc(sp, '-');

q++;

}

else

sfputc(sp, *q);

sfprintf(sp, ".html\">%s%-.*s%s</A>%-.*s</NOBR>"

, font(a, style, 1)

, w - s - 1, s

, font(a, style, 0)

, t - w + 1, w

);

s = t + 1;

continue;

}

}

}

sfputr(sp, font(a, style, !!(f ^= a)), -1);

}

continue;

case '\b':

a = FONT_BOLD;

goto setfont;

case '\f':

psp = info(psp, s, e, ip, id);

if (psp->nb)

{

s = psp->nb;

e = psp->ne;

}

else

{

s = psp->ob;

psp = psp->next;

}

continue;

case '\n':

sfputc(sp, c);

for (i = 0; i < level; i++)

sfputc(sp, '\t');

continue;

case '\v':

a = FONT_LITERAL;

goto setfont;

case '<':

if (style == STYLE_html)

{

sfputr(sp, "&lt;", -1);

c = 0;

for (t = s; t < e; t++)

if (!isalnum(*t) && *t != '_' && *t != '.' && *t != '-')

{

if (*t == '@')

{

if (c)

break;

c = 1;

}

else if (*t == '>')

{

if (c)

{

sfprintf(sp, "<A href=\"mailto:%-.*s>%-.*s</A>&gt;", t - s, s, t - s, s);

s = t + 1;

}

break;

}

else

break;

}

continue;

}

break;

case '>':

if (style == STYLE_html)

{

sfputr(sp, "&gt;", -1);

continue;

}

break;

case '&':

if (style == STYLE_html)

{

sfputr(sp, "&amp;", -1);

continue;

}

break;

case '"':

if (style == STYLE_html)

{

sfputr(sp, "&quot;", -1);

continue;

}

break;

case '-':

if (ostyle == STYLE_nroff)

sfputc(sp, '\\');

break;

case '.':

if (ostyle == STYLE_nroff)

{

sfputc(sp, '\\');

sfputc(sp, '&');

}

break;

case '\\':

if (ostyle == STYLE_nroff)

{

c = 'e';

sfputc(sp, '\\');

}

break;

case ' ':

if (ostyle == STYLE_nroff)

sfputc(sp, '\\');

break;

}

sfputc(sp, c);

}

restore:

if (f > 0)

sfputr(sp, font(f, style, 0), -1);

if (about)

sfputc(sp, ')');

if (psp)

pop(psp);

return r;

}

static void

args(register Sfio_t* sp, register char* p, register int n, int flags, int style, Sfio_t* ip, int version, char* id, char* catalog)

{

register int i;

register char* t;

register char* o;

register char* a = 0;

char* b;

int sep;

if (flags & OPT_functions)

sep = '\t';

else

{

sep = ' ';

o = T(NiL, ID, "options");

b = style == STYLE_nroff ? "\\ " : " ";

for (;;)

{

t = (char*)memchr(p, '\n', n);

if (style >= STYLE_man)

{

if (!(a = id))

a = "...";

sfprintf(sp, "\t%s%s%s%s[%s%s%s%s%s]", font(FONT_BOLD, style, 1), a, font(FONT_BOLD, style, 0), b, b, font(FONT_ITALIC, style, 1), o, font(FONT_ITALIC, style, 0), b);

}

else if (a)

sfprintf(sp, "%*.*s%s%s%s[%s%s%s]", OPT_USAGE - 1, OPT_USAGE - 1, T(NiL, ID, "Or:"), b, a, b, b, o, b);

else

{

if (!(a = error_info.id) && !(a = id))

a = "...";

if (!sfstrtell(sp))

sfprintf(sp, "[%s%s%s]", b, o, b);

}

if (!t)

break;

i = ++t - p;

if (i)

{

sfputr(sp, b, -1);

if (X(catalog))

{

sfwrite(ip, p, i);

if (b = sfstruse(ip))

sfputr(sp, T(id, catalog, b), -1);

else

sfwrite(sp, p, i);

}

else

sfwrite(sp, p, i);

}

if (style == STYLE_html)

sfputr(sp, "<BR>", '\n');

else if (style == STYLE_nroff)

sfputr(sp, ".br", '\n');

else if (style == STYLE_api)

sfputr(sp, ".BR", '\n');

p = t;

n -= i;

while (n > 0 && (*p == ' ' || *p == '\t'))

{

p++;

n--;

}

}

}

if (n)

label(sp, sep, p, 0, n, 0, style, 0, ip, version, id, catalog);

}

static int

item(Sfio_t* sp, char* s, int about, int level, int style, Sfio_t* ip, int version, char* id, char* catalog, int* hflags)

{

register char* t;

int n;

int par;

sfputc(sp, '\n');

if (*s == '\n')

{

par = 0;

if (style >= STYLE_nroff)

sfprintf(sp, ".DS\n");

else

{

if (style == STYLE_html)

sfprintf(sp, "<PRE>\n");

else

sfputc(sp, '\n');

for (n = 0; n < level; n++)

sfputc(sp, '\t');

}

label(sp, 0, s + 1, about, -1, level, style, FONT_LITERAL, ip, version, id, catalog);

sfputc(sp, '\n');

if (style >= STYLE_nroff)

sfprintf(sp, ".DE");

else if (style == STYLE_html)

sfprintf(sp, "</PRE>");

}

else if (*s != ']' && (*s != '?' || *(s + 1) == '?'))

{

par = 0;

if (level)

{

if (style >= STYLE_nroff)

sfprintf(sp, ".H%d ", (level - (level > 2)) / 2);

else

for (n = 0; n < level; n++)

sfputc(sp, '\t');

}

if (style == STYLE_html)

{

if (!level)

{

if (*hflags & HELP_head)

sfputr(sp, "</DIV>", '\n');

else

*hflags |= HELP_head;

sfputr(sp, "<H4>", -1);

}

sfputr(sp, "<A name=\"", -1);

if (s[-1] == '-' && s[0] == 'l' && s[1] == 'i' && s[2] == 'c' && s[3] == 'e' && s[4] == 'n' && s[5] == 's' && s[6] == 'e' && s[7] == '?')

for (t = s + 8; *t && *t != ']'; t++)

if (t[0] == 'p' && (!strncmp(t, "proprietary", 11) || !strncmp(t, "private", 7)) || t[0] == 'n' && !strncmp(t, "noncommercial", 13))

{

state.flags |= OPT_proprietary;

break;

}

label(sp, 0, s, about, -1, level, style, -1, ip, version, id, catalog);

sfputr(sp, "\">", -1);

label(sp, 0, s, about, -1, level, style, level ? FONT_BOLD : 0, ip, version, id, catalog);

sfputr(sp, "</A>", -1);

if (!level)

{

if (!strncmp(s, C("SYNOPSIS"), strlen(C("SYNOPSIS"))))

sfputr(sp, "</H4>\n<DIV class=SY>", -1);

else

{

sfputr(sp, "</H4>\n<DIV class=SH>", -1);

if (!strncmp(s, C("NAME"), strlen(C("NAME"))) || !strncmp(s, C("PLUGIN"), strlen(C("PLUGIN"))))

*hflags |= HELP_index;

}

}

}

else

{

if (!level)

{

if (style >= STYLE_nroff)

sfprintf(sp, ".SH ");

else if (style == STYLE_man)

sfputc(sp, '\n');

else if (style != STYLE_options && style != STYLE_match || *s == '-' || *s == '+')

sfputc(sp, '\t');

}

label(sp, 0, s, about, -1, level, style, FONT_BOLD, ip, version, id, catalog);

}

}

else

{

par = 1;

if (style >= STYLE_nroff)

sfputr(sp, level ? ".SP" : ".PP", -1);

}

if (style >= STYLE_nroff || !level)

sfputc(sp, '\n');

if (par && style < STYLE_nroff)

for (n = 0; n < level; n++)

sfputc(sp, '\t');

return par;

}

#if _BLD_DEBUG

static char* textout(Sfio_t*, char*, char*, int, int, int, int, Sfio_t*, int, char*, char*, int*);

static char*

trace_textout(Sfio_t* sp, register char* p, char* conform, int conformlen, int style, int level, int bump, Sfio_t* ip, int version, char* id, char* catalog, int* hflags, int line)

{

static int depth = 0;

message((-21, "opthelp: txt#%d +++ %2d \"%s\" style=%d level=%d bump=%d", line, ++depth, show(p), style, level, bump));

p = textout(sp, p, conform, conformlen, style, level, bump, ip, version, id, catalog, hflags);

message((-21, "opthelp: txt#%d --- %2d \"%s\"", line, depth--, show(p)));

return p;

}

#endif

static char*

textout(Sfio_t* sp, register char* s, char* conform, int conformlen, int style, int level, int bump, Sfio_t* ip, int version, char* id, char* catalog, int* hflags)

{

#if _BLD_DEBUG

#define textout(sp,s,conform,conformlen,style,level,bump,ip,version,id,catalog,hflags) trace_textout(sp,s,conform,conformlen,style,level,bump,ip,version,id,catalog,hflags,__LINE__)

#endif

register char* t;

register int c;

register int n;

char* w;

char* q;

int a;

int f;

int par;

int about;

Push_t* tsp;

int ident = 0;

int lev = level;

Push_t* psp = 0;

again:

about = 0;

if ((c = *s) == GO)

{

for (;;)

{

while (*(s = next(s + 1, version)) == '\n');

if (*s == GO)

{

if (level > 1)

level++;

level++;

}

else if (*s != OG)

{

if (level <= 1 || *s != '[' || *(s + 1) != '-' || style == STYLE_man && *(s + 2) == '?' || isalpha(*(s + 2)))

break;

s = skip(s, 0, 0, 0, 1, level, 0, version);

}

else if ((level -= 2) <= lev)

return s + 1;

}

if (*s == '\f')

{

psp = info(psp, s + 1, NiL, ip, id);

if (psp->nb)

s = psp->nb;

else

{

s = psp->ob;

psp = psp->next;

}

}

if (*s != '[')

return s;

c = *++s;

if (level > 1)

level++;

level++;

}

if (c == '-' && level > 1)

{

if (style == STYLE_man)

{

about = 1;

if (*(s + 1) == '-')

s++;

}

else

for (;;)

{

s = skip(s, 0, 0, 0, 1, level, 0, version);

while (*(s = next(s + 1, version)) == '\n');

if (*s == '[')

{

if ((c = *++s) != '-')

break;

}

else if (*s == GO)

goto again;

else if (*s == OG)

return s + 1;

}

}

if (c == '+' || c == '-' && (bump = 3) || c != ' ' && level > 1)

{

s = skip(t = s + 1, '?', 0, 0, 1, level, 0, version);

if (c == '-' && (*t == '?' || isdigit(*t) || *s == '?' && *(s + 1) == '\n'))

{

if ((c = *s) != '?')

return skip(s, 0, 0, 0, 1, level, 1, version);

w = C("version");

par = item(sp, w, about, level, style, ip, version, id, ID, hflags);

for (;;)

{

while (isspace(*(s + 1)))

s++;

w = s;

if (w[1] == '@' && w[2] == '(' && w[3] == '#' && w[4] == ')')

s = w + 4;

else if (w[1] == '$' && w[2] == 'I' && w[3] == 'd' && w[4] == ':' && w[5] == ' ')

{

s = w + 5;

ident = 1;

}

else

break;

}

}

else

{

if (isdigit(c) && isdigit(*t))

{

while (isdigit(*t))

t++;

if (*t == ':')

t++;

}

else if (isalnum(c) && *t-- == ':')

{

if (X(catalog) || *t == *(t + 2))

t += 2;

else

{

sfprintf(ip, "%s", t);

if (w = sfstruse(ip))

*((t = w) + 1) = '|';

}

}

par = item(sp, t, about, level, style, ip, version, id, catalog, hflags);

c = *s;

}

if (!about && level)

par = 0;

}

else

{

if (style >= STYLE_nroff)

sfputc(sp, '\n');

else if (c == '?')

for (n = 0; n < level; n++)

sfputc(sp, '\t');

par = 0;

}

if (c == ':')

c = *(s = skip(s, '?', 0, 0, 1, 0, 0, version));

if ((c == ']' || c == '?' && *(s + 1) == ']' && *(s + 2) != ']' && s++) && (c = *(s = next(s + 1, version))) == GO)

{

s = textout(sp, s, conform, conformlen, style, level + bump + par + 1, 0, ip, version, id, catalog, hflags);

if (level > lev && *s && *(s = next(s, version)) == '[')

{

s++;

message((-21, "textout#%d s=%s", __LINE__, show(s)));

goto again;

}

}

else if (c == '?' || c == ' ')

{

s++;

if (c == ' ')

sfputc(sp, c);

else

{

if (X(catalog) && (tsp = localize(psp, s, NiL, 0, 1, ip, version, id, catalog)))

{

psp = tsp;

s = psp->nb;

}

if (style < STYLE_nroff)

for (n = 0; n < bump + 1; n++)

sfputc(sp, '\t');

}

if (conform)

{

sfprintf(sp, "[%-.*s %s] ", conformlen, conform, T(NiL, ID, "conformance"));

conform = 0;

}

if (*hflags & HELP_index)

{

*hflags &= ~HELP_index;

sfputr(sp, "<!--MAN-INDEX-->", -1);

}

f = 0;

for (;;)

{

switch (c = *s++)

{

case 0:

if (!(tsp = psp))

{

if (f)

sfputr(sp, font(f, style, 0), -1);

return s - 1;

}

s = psp->ob;

psp = psp->next;

free(tsp);

continue;

case ']':

if (psp && psp->ch)

break;

if (*s != ']')

{

if (f)

{

sfputr(sp, font(f, style, 0), -1);

f = 0;

}

for (;;)

{

if ((*s == '#' || *s == ':') && level > lev)

{

char* o;

char* v;

int j;

int m;

int ol;

int vl;

a = 0;

o = 0;

v = 0;

if (*++s == '?' || *s == *(s - 1))

{

s++;

a |= OPT_optional;

}

if (*(s = next(s, version)) == '[')

{

s = skip(s + 1, ':', '?', 0, 1, 0, 0, version);

while (*s == ':')

{

s = skip(t = s + 1, ':', '?', 0, 1, 0, 0, version);

m = s - t;

if (*t == '!')

{

o = t + 1;

ol = m - 1;

}

else if (*t == '=')

{

v = t + 1;

vl = m - 1;

}

else

for (j = 0; j < elementsof(attrs); j++)

if (strneq(t, attrs[j].name, m))

{

a |= attrs[j].flag;

break;

}

}

}

if (a & OPT_optional)

{

if (o)

{

sfprintf(sp, " %s ", T(NiL, ID, "If the option value is omitted then"));

sfputr(sp, font(FONT_BOLD, style, 1), -1);

t = o + ol;

while (o < t)

{

if (((c = *o++) == ':' || c == '?') && *o == c)

o++;

sfputc(sp, c);

}

sfputr(sp, font(FONT_BOLD, style, 0), -1);

sfprintf(sp, " %s.", T(NiL, ID, "is assumed"));

}

else

sfprintf(sp, " %s", T(NiL, ID, "The option value may be omitted."));

}

if (v)

{

sfprintf(sp, " %s ", T(NiL, ID, "The default value is"));

sfputr(sp, font(FONT_BOLD, style, 1), -1);

t = v + vl;

while (v < t)

{

if (((c = *v++) == ':' || c == '?') && *v == c)

v++;

sfputc(sp, c);

}

sfputr(sp, font(FONT_BOLD, style, 0), -1);

sfputc(sp, '.');

}

s = skip(s, 0, 0, 0, 1, 0, 1, version);

}

if (*(s = next(s, version)) == GO)

{

s = textout(sp, s, 0, 0, style, level + bump + !level, 0, ip, version, id, catalog, hflags);

if (*s && *(s = next(s, version)) == '[' && !isalnum(*(s + 1)))

{

s++;

message((-21, "textout#%d s=%s", __LINE__, show(s)));

goto again;

}

}

else if (*s == '[' && level > lev)

{

s++;

goto again;

}

else if (*s == '\f')

{

s++;

if (style != STYLE_keys)

{

psp = info(psp, s, NiL, ip, id);

if (psp->nb)

s = psp->nb;

else

{

s = psp->ob;

psp = psp->next;

}

}

}

else if (!*s)

{

if (!(tsp = psp))

break;

s = psp->ob;

psp = psp->next;

free(tsp);

}

else if (*s != OG)

break;

else

{

s++;

if ((level -= 2) <= lev)

break;

}

}

return s;

}

s++;

break;

case '\a':

a = FONT_ITALIC;

setfont:

if (f & ~a)

{

sfputr(sp, font(f, style, 0), -1);

f = 0;

}

if (!f && style == STYLE_html)

{

for (t = s; *t && !isspace(*t) && !iscntrl(*t); t++);

if (*t == c && *++t == '(')

{

w = t;

if (isdigit(*++t))

while (isupper(*++t));

if (*t == ')' && t > w + 1)

{

sfprintf(sp, "<NOBR><A href=\"../man%-.*s/"

, t - w - 1, w + 1

);

for (q = s; q < w - 1; q++)

if (*q == ':' && q < w - 2 && *(q + 1) == ':')

{

sfputc(sp, '-');

q++;

}

else

sfputc(sp, *q);

sfprintf(sp, ".html\">%s%-.*s%s</A>%-.*s</NOBR>"

, font(a, style, 1)

, w - s - 1, s

, font(a, style, 0)

, t - w + 1, w

);

s = t + 1;

continue;

}

}

}

sfputr(sp, font(a, style, !!(f ^= a)), -1);

continue;

case '\b':

a = FONT_BOLD;

goto setfont;

case '\f':

if (style != STYLE_keys)

{

psp = info(psp, s, NiL, ip, id);

if (psp->nb)

s = psp->nb;

else

{

s = psp->ob;

psp = psp->next;

}

}

continue;

case '\v':

a = FONT_LITERAL;

goto setfont;

case ' ':

if (ident && *s == '$')

{

while (*++s)

if (*s == ']')

{

if (*(s + 1) != ']')

break;

s++;

}

continue;

}

case '\n':

case '\r':

case '\t':

while (*s == ' ' || *s == '\t' || *s == '\r' || *s == '\n')

s++;

if (*s == ']' && *(s + 1) != ']' && (!psp || !psp->ch))

continue;

c = ' ';

break;

case '<':

if (style == STYLE_html)

{

sfputr(sp, "&lt;", -1);

c = 0;

for (t = s; *t; t++)

if (!isalnum(*t) && *t != '_' && *t != '.' && *t != '-')

{

if (*t == '@')

{

if (c)

break;

c = 1;

}

else if (*t == '>')

{

if (c)

{

sfprintf(sp, "<A href=\"mailto:%-.*s\">%-.*s</A>&gt;", t - s, s, t - s, s);

s = t + 1;

}

break;

}

else

break;

}

continue;

}

break;

case '>':

if (style == STYLE_html)

{

sfputr(sp, "&gt;", -1);

continue;

}

break;

case '&':

if (style == STYLE_html)

{

sfputr(sp, "&amp;", -1);

continue;

}

break;

case '-':

if (style == STYLE_nroff)

sfputc(sp, '\\');

break;

case '.':

if (style == STYLE_nroff)

{

sfputc(sp, '\\');

sfputc(sp, '&');

}

break;

case '\\':

if (style == STYLE_nroff)

{

sfputc(sp, c);

c = 'e';

}

break;

}

sfputc(sp, c);

}

}

else if (c == '[' && level > lev)

{

s++;

goto again;

}

return s;

}

static void

list(Sfio_t* sp, register const List_t* lp)

{

sfprintf(sp, "[%c", lp->type);

if (lp->name)

{

sfprintf(sp, "%s", lp->name);

if (lp->text)

sfprintf(sp, "?%s", lp->text);

}

sfputc(sp, ']');

}

char*

opthelp(const char* oopts, const char* what)

{

register Sfio_t* sp;

register Sfio_t* mp;

register int c;

register char* p;

register Indent_t* ip;

char* t;

char* x;

char* w;

char* u;

char* y;

char* s;

char* d;

char* v;

char* cb;

char* dt;

char* ov;

char* pp;

char* rb;

char* re;

int f;

int i;

int j;

int m;

int n;

int a;

int cl;

int sl;

int vl;

int ol;

int wl;

int xl;

int rm;

int ts;

int co;

int z;

int style;

int head;

int margin;

int mode;

int mutex;

int prefix;

int version;

long tp;

char* id;

char* catalog;

Optpass_t* o;

Optpass_t* q;

Optpass_t* e;

Optpass_t one;

Optpass_t top;

Help_t* hp;

Tag_t ptstk[elementsof(indent) + 2];

Tag_t* pt;

Sfio_t* vp;

Push_t* tsp;

char* opts = (char*)oopts;

char* section = "1";

int flags = 0;

int bflags = 0;

int dflags = 0;

int hflags = 0;

int matched = 0;

int paragraph = 0;

Push_t* psp = 0;

Sfio_t* sp_help = 0;

Sfio_t* sp_text = 0;

Sfio_t* sp_plus = 0;

Sfio_t* sp_head = 0;

Sfio_t* sp_body = 0;

Sfio_t* sp_info = 0;

Sfio_t* sp_misc = 0;

if (!(mp = state.mp) && !(mp = state.mp = sfstropen()))

goto nospace;

if (!what)

style = state.style;

else if (!*what)

style = STYLE_options;

else if (*what != '?')

style = STYLE_match;

else if (!*(what + 1))

style = STYLE_man;

else if ((hp = (Help_t*)search(styles, elementsof(styles), sizeof(styles[0]), (char*)what + 1)) && hp->style >= 0)

{

style = hp->style;

if (*hp->name != '?')

what = hp->name;

}

else

{

if ((style = state.force) < STYLE_man)

style = STYLE_man;

if (!(sp_help = sfstropen()))

goto nospace;

for (i = 0; i < elementsof(help_head); i++)

list(sp_help, &help_head[i]);

for (i = 0; i < elementsof(styles); i++)

sfprintf(sp_help, "[:%s?%s]", styles[i].match, styles[i].text);

for (i = 0; i < elementsof(help_tail); i++)

list(sp_help, &help_tail[i]);

if (!(opts = sfstruse(sp_help)))

goto nospace;

}

/*

top = state.pass[0];

again:

if (opts)

{

for (i = 0; i < state.npass; i++)

if (state.pass[i].oopts == opts)

{

o = &state.pass[i];

break;

}

if (i >= state.npass)

{

o = &one;

if (init((char*)opts, o))

goto nospace;

}

e = o + 1;

}

else

{

if (state.npass > 0)

{

o = state.pass;

e = o + state.npass;

}

else if (state.npass < 0)

{

o = &state.cache->pass;

e = o + 1;

}

else

return T(NiL, ID, "[* call optget() before opthelp() *]");

oopts = (const char*)state.pass[0].oopts;

}

if (style <= STYLE_usage)

{

if (!(sp_text = sfstropen()) || !(sp_info = sfstropen()))

goto nospace;

if (style >= STYLE_match && style < STYLE_keys && !(sp_body = sfstropen()))

goto nospace;

}

switch (style)

{

case STYLE_api:

case STYLE_html:

case STYLE_nroff:

state.emphasis = 0;

break;

case STYLE_usage:

case STYLE_keys:

for (q = o; q < e; q++)

if (!(q->flags & OPT_ignore) && !streq(q->catalog, o->catalog))

o = q;

/*FALLTHROUGH*/

case STYLE_posix:

sfputc(mp, '\f');

break;

default:

if (!state.emphasis)

{

if (x = getenv("ERROR_OPTIONS"))

{

if (strmatch(x, "*noemphasi*"))

break;

if (strmatch(x, "*emphasi*"))

{

state.emphasis = 1;

break;

}

}

if ((x = getenv("TERM")) && strmatch(x, "(ansi|vt100|xterm)*") && isatty(sffileno(sfstderr)))

state.emphasis = 1;

}

break;

}

x = "";

xl = 0;

for (q = o; q < e; q++)

{

if (q->flags & OPT_ignore)

continue;

section = q->section;

flags |= q->flags;

p = q->opts;

prefix = q->prefix;

version = q->version;

id = q->id;

catalog = q->catalog;

switch (style)

{

case STYLE_usage:

if (xl)

sfputc(mp, '\n');

else

xl = 1;

psp = 0;

for (;;)

{

switch (c = *p++)

{

case 0:

if (!(tsp = psp))

goto style_usage;

p = psp->ob;

psp = psp->next;

free(tsp);

continue;

case '\a':

c = 'a';

break;

case '\b':

c = 'b';

break;

case '\f':

psp = info(psp, p, NiL, sp_info, id);

if (psp->nb)

p = psp->nb;

else

{

p = psp->ob;

psp = psp->next;

}

continue;

case '\n':

c = 'n';

break;

case '\r':

c = 'r';

break;

case '\t':

c = 't';

break;

case '\v':

c = 'v';

break;

case '"':

c = '"';

break;

case '\'':

c = '\'';

break;

case '\\':

c = '\\';

break;

default:

sfputc(mp, c);

continue;

}

sfputc(mp, '\\');

sfputc(mp, c);

}

style_usage:

continue;

case STYLE_keys:

a = 0;

psp = 0;

vl = 0;

for (;;)

{

if (!(c = *p++))

{

if (!(tsp = psp))

break;

p = psp->ob;

psp = psp->next;

free(tsp);

continue;

}

if (c == '\f')

{

psp = info(psp, p, NiL, sp_info, id);

if (psp->nb)

p = psp->nb;

else

{

p = psp->ob;

psp = psp->next;

}

continue;

}

f = z = 1;

t = 0;

if (a == 0 && (c == ' ' || c == '\n' && *p == '\n'))

{

if (c == ' ' && *p == ']')

{

p++;

continue;

}

if (*p == '\n')

p++;

a = c;

}

else if (c == '\n')

{

if (a == ' ')

a = -1;

else if (a == '\n' || *p == '\n')

{

a = -1;

p++;

}

continue;

}

else if ((c == ':' || c == '#') && (*p == '[' || *p == '?' && *(p + 1) == '[' && p++))

p++;

else if (c != '[')

{

if (c == GO)

vl++;

else if (c == OG)

vl--;

continue;

}

else if (*p == ' ')

{

p++;

continue;

}

else if (*p == '-')

{

z = 0;

if (*++p == '-')

{

p = skip(p, 0, 0, 0, 1, 0, 1, version);

continue;

}

}

else if (*p == '+')

{

p++;

if (vl > 0 && *p != '\a')

{

f = 0;

p = skip(p, '?', 0, 0, 1, 0, 0, version);

if (*p == '?')

p++;

}

}

else

{

if (*(p + 1) == '\f' && (vp = state.vp))

p = expand(p + 2, NiL, &t, vp, id);

p = skip(p, ':', '?', 0, 1, 0, 0, version);

if (*p == ':')

p++;

}

if (f && *p == '?' && *(p + 1) != '?')

{

f = 0;

if (z)

p++;

else

p = skip(p, 0, 0, 0, 1, 0, 0, version);

}

if (*p == ']' && *(p + 1) != ']')

{

p++;

continue;

}

if (!*p)

{

if (!t)

break;

p = t;

t = 0;

}

m = sfstrtell(mp);

sfputc(mp, '"');

xl = 1;

/*UNDENT...*/

for (;;)

{

if (!(c = *p++))

{

if (t)

{

p = t;

t = 0;

}

if (!(tsp = psp))

{

p--;

break;

}

p = psp->ob;

psp = psp->next;

free(tsp);

continue;

}

if (a > 0)

{

if (c == '\n')

{

if (a == ' ')

{

a = -1;

break;

}

if (a == '\n' || *p == '\n')

{

a = -1;

p++;

break;

}

}

}

else if (c == ']')

{

if (*p != ']')

{

sfputc(mp, 0);

y = sfstrbase(mp) + m + 1;

if (D(y) || !strmatch(y, KEEP) || strmatch(y, OMIT))

{

sfstrseek(mp, m, SEEK_SET);

xl = 0;

}

else

sfstrseek(mp, -1, SEEK_CUR);

break;

}

sfputc(mp, *p++);

continue;

}

switch (c)

{

case '?':

if (f)

{

if (*p == '?')

{

p++;

sfputc(mp, c);

}

else

{

f = 0;

sfputc(mp, 0);

y = sfstrbase(mp) + m + 1;

if (D(y) || !strmatch(y, KEEP) || strmatch(y, OMIT))

{

sfstrseek(mp, m, SEEK_SET);

xl = 0;

}

else

sfstrseek(mp, -1, SEEK_CUR);