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/* $Id$ */
/*
* Copyright (c) 2008 Kristaps Dzonsons <kristaps@kth.se>
*
* 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.
*/
#include <sys/types.h>
#include <assert.h>
#include <ctype.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "private.h"
/*
* Various string-literal operations: converting scalars to and from
* strings, etc.
*/
struct mdoc_secname {
const char *name;
int flag;
#define MSECNAME_META (1 << 0)
};
/* Section names corresponding to mdoc_sec. */
static const struct mdoc_secname secnames[] = {
{ "PROLOGUE", MSECNAME_META },
{ "BODY", MSECNAME_META },
{ "NAME", 0 },
{ "LIBRARY", 0 },
{ "SYNOPSIS", 0 },
{ "DESCRIPTION", 0 },
{ "IMPLEMENTATION NOTES", 0 },
{ "RETURN VALUES", 0 },
{ "ENVIRONMENT", 0 },
{ "FILES", 0 },
{ "EXAMPLES", 0 },
{ "DIAGNOSTICS", 0 },
{ "COMPATIBILITY", 0 },
{ "ERRORS", 0 },
{ "SEE ALSO", 0 },
{ "STANDARDS", 0 },
{ "HISTORY", 0 },
{ "AUTHORS", 0 },
{ "CAVEATS", 0 },
{ "BUGS", 0 },
{ NULL, 0 }
};
#ifdef __linux__
extern char *strptime(const char *, const char *, struct tm *);
#endif
size_t
mdoc_isescape(const char *p)
{
size_t c;
if ('\\' != *p++)
return(0);
switch (*p) {
case ('\\'):
/* FALLTHROUGH */
case ('\''):
/* FALLTHROUGH */
case ('`'):
/* FALLTHROUGH */
case ('-'):
/* FALLTHROUGH */
case (' '):
/* FALLTHROUGH */
case ('&'):
/* FALLTHROUGH */
case ('.'):
/* FALLTHROUGH */
case ('e'):
return(2);
case ('*'):
if (0 == *++p || ! isgraph((u_char)*p))
return(0);
switch (*p) {
case ('('):
if (0 == *++p || ! isgraph((u_char)*p))
return(0);
return(4);
case ('['):
for (c = 3, p++; *p && ']' != *p; p++, c++)
if ( ! isgraph((u_char)*p))
break;
return(*p == ']' ? c : 0);
default:
break;
}
return(3);
case ('('):
if (0 == *++p || ! isgraph((u_char)*p))
return(0);
if (0 == *++p || ! isgraph((u_char)*p))
return(0);
return(4);
case ('['):
break;
default:
return(0);
}
for (c = 3, p++; *p && ']' != *p; p++, c++)
if ( ! isgraph((u_char)*p))
break;
return(*p == ']' ? c : 0);
}
int
mdoc_iscdelim(char p)
{
switch (p) {
case('.'):
/* FALLTHROUGH */
case(','):
/* FALLTHROUGH */
case(';'):
/* FALLTHROUGH */
case(':'):
/* FALLTHROUGH */
case('?'):
/* FALLTHROUGH */
case('!'):
/* FALLTHROUGH */
case('('):
/* FALLTHROUGH */
case(')'):
/* FALLTHROUGH */
case('['):
/* FALLTHROUGH */
case(']'):
/* FALLTHROUGH */
case('{'):
/* FALLTHROUGH */
case('}'):
return(1);
default:
break;
}
return(0);
}
int
mdoc_isdelim(const char *p)
{
if (0 == *p)
return(0);
if (0 != *(p + 1))
return(0);
return(mdoc_iscdelim(*p));
}
enum mdoc_sec
mdoc_atosec(const char *p)
{
const struct mdoc_secname *n;
int i;
for (i = 0, n = secnames; n->name; n++, i++)
if ( ! (n->flag & MSECNAME_META))
if (xstrcmp(p, n->name))
return((enum mdoc_sec)i);
return(SEC_CUSTOM);
}
time_t
mdoc_atotime(const char *p)
{
struct tm tm;
char *pp;
(void)memset(&tm, 0, sizeof(struct tm));
if (xstrcmp(p, "$Mdocdate$"))
return(time(NULL));
if ((pp = strptime(p, "$Mdocdate$", &tm)) && 0 == *pp)
return(mktime(&tm));
/* XXX - this matches "June 1999", which is wrong. */
if ((pp = strptime(p, "%b %d %Y", &tm)) && 0 == *pp)
return(mktime(&tm));
if ((pp = strptime(p, "%b %d, %Y", &tm)) && 0 == *pp)
return(mktime(&tm));
return(0);
}
size_t
mdoc_macro2len(int macro)
{
switch (macro) {
case(MDOC_Ad):
return(12);
case(MDOC_Ao):
return(12);
case(MDOC_An):
return(12);
case(MDOC_Aq):
return(12);
case(MDOC_Ar):
return(12);
case(MDOC_Bo):
return(12);
case(MDOC_Bq):
return(12);
case(MDOC_Cd):
return(12);
case(MDOC_Cm):
return(10);
case(MDOC_Do):
return(10);
case(MDOC_Dq):
return(12);
case(MDOC_Dv):
return(12);
case(MDOC_Eo):
return(12);
case(MDOC_Em):
return(10);
case(MDOC_Er):
return(12);
case(MDOC_Ev):
return(15);
case(MDOC_Fa):
return(12);
case(MDOC_Fl):
return(10);
case(MDOC_Fo):
return(16);
case(MDOC_Fn):
return(16);
case(MDOC_Ic):
return(10);
case(MDOC_Li):
return(16);
case(MDOC_Ms):
return(6);
case(MDOC_Nm):
return(10);
case(MDOC_No):
return(12);
case(MDOC_Oo):
return(10);
case(MDOC_Op):
return(14);
case(MDOC_Pa):
return(32);
case(MDOC_Pf):
return(12);
case(MDOC_Po):
return(12);
case(MDOC_Pq):
return(12);
case(MDOC_Ql):
return(16);
case(MDOC_Qo):
return(12);
case(MDOC_So):
return(12);
case(MDOC_Sq):
return(12);
case(MDOC_Sy):
return(6);
case(MDOC_Sx):
return(16);
case(MDOC_Tn):
return(10);
case(MDOC_Va):
return(12);
case(MDOC_Vt):
return(12);
case(MDOC_Xr):
return(10);
default:
break;
};
return(0);
}
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