-/* $Id: mandoc.c,v 1.8 2009/11/05 10:16:01 kristaps Exp $ */
+/* $Id: mandoc.c,v 1.24 2010/07/18 22:55:06 kristaps Exp $ */
/*
- * Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@kth.se>
+ * Copyright (c) 2008, 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
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
-#if defined(__linux__) || defined(__MINT__)
-# define _GNU_SOURCE /* strptime() */
+#ifdef HAVE_CONFIG_H
+#include "config.h"
#endif
#include <sys/types.h>
#include <string.h>
#include <time.h>
+#include "mandoc.h"
#include "libmandoc.h"
-static int a2time(time_t *, const char *, const char *);
+static int a2time(time_t *, const char *, const char *);
int
-mandoc_special(const char *p)
+mandoc_special(char *p)
{
- int terminator; /* Terminator for \s. */
- int lim; /* Limit for N in \s. */
- int c, i;
+ int len, i;
+ char term;
+ char *sv;
- if ('\\' != *p++)
- return(0);
+ len = 0;
+ term = '\0';
+ sv = p;
+
+ assert('\\' == *p);
+ p++;
- switch (*p) {
- case ('\\'):
+ switch (*p++) {
+#if 0
+ case ('Z'):
/* FALLTHROUGH */
- case ('\''):
+ case ('X'):
/* FALLTHROUGH */
- case ('`'):
+ case ('x'):
/* FALLTHROUGH */
- case ('q'):
+ case ('w'):
/* FALLTHROUGH */
- case ('-'):
+ case ('v'):
/* FALLTHROUGH */
- case ('~'):
+ case ('S'):
/* FALLTHROUGH */
- case ('^'):
+ case ('R'):
/* FALLTHROUGH */
- case ('%'):
+ case ('o'):
/* FALLTHROUGH */
- case ('0'):
+ case ('N'):
/* FALLTHROUGH */
- case (' '):
+ case ('l'):
/* FALLTHROUGH */
- case ('|'):
+ case ('L'):
/* FALLTHROUGH */
- case ('&'):
+ case ('H'):
/* FALLTHROUGH */
- case ('.'):
+ case ('h'):
/* FALLTHROUGH */
- case (':'):
+ case ('D'):
/* FALLTHROUGH */
- case ('c'):
- return(2);
- case ('e'):
- return(2);
- case ('f'):
- if ('\0' == *++p || ! isgraph((u_char)*p))
+ case ('C'):
+ /* FALLTHROUGH */
+ case ('b'):
+ /* FALLTHROUGH */
+ case ('B'):
+ /* FALLTHROUGH */
+ case ('a'):
+ /* FALLTHROUGH */
+ case ('A'):
+ if (*p++ != '\'')
return(0);
- return(3);
+ term = '\'';
+ break;
+#endif
case ('s'):
- if ('\0' == *++p)
- return(2);
-
- c = 2;
- terminator = 0;
- lim = 1;
-
- if (*p == '\'') {
- lim = 0;
- terminator = 1;
- ++p;
- ++c;
- } else if (*p == '[') {
- lim = 0;
- terminator = 2;
- ++p;
- ++c;
- } else if (*p == '(') {
- lim = 2;
- terminator = 3;
- ++p;
- ++c;
- }
+ if (ASCII_HYPH == *p)
+ *p = '-';
+ if ('+' == *p || '-' == *p)
+ p++;
- if (*p == '+' || *p == '-') {
- ++p;
- ++c;
- }
-
- if (*p == '\'') {
- if (terminator)
- return(0);
- lim = 0;
- terminator = 1;
- ++p;
- ++c;
- } else if (*p == '[') {
- if (terminator)
- return(0);
- lim = 0;
- terminator = 2;
- ++p;
- ++c;
- } else if (*p == '(') {
- if (terminator)
- return(0);
- lim = 2;
- terminator = 3;
- ++p;
- ++c;
- }
-
- /* TODO: needs to handle floating point. */
+ i = ('s' != *(p - 1));
- if ( ! isdigit((u_char)*p))
- return(0);
-
- for (i = 0; isdigit((u_char)*p); i++) {
- if (lim && i >= lim)
- break;
- ++p;
- ++c;
+ switch (*p++) {
+ case ('('):
+ len = 2;
+ break;
+ case ('['):
+ term = ']';
+ break;
+ case ('\''):
+ term = '\'';
+ break;
+ default:
+ len = 1;
+ p--;
+ break;
}
- if (terminator && terminator < 3) {
- if (1 == terminator && *p != '\'')
- return(0);
- if (2 == terminator && *p != ']')
+ if (ASCII_HYPH == *p)
+ *p = '-';
+ if ('+' == *p || '-' == *p) {
+ if (i++)
return(0);
- ++p;
- ++c;
- }
-
- return(c);
- case ('*'):
- if (0 == *++p || ! isgraph((u_char)*p))
+ p++;
+ }
+
+ if (0 == i)
return(0);
- switch (*p) {
+ break;
+#if 0
+ case ('Y'):
+ /* FALLTHROUGH */
+ case ('V'):
+ /* FALLTHROUGH */
+ case ('$'):
+ /* FALLTHROUGH */
+ case ('n'):
+ /* FALLTHROUGH */
+ case ('k'):
+ /* FALLTHROUGH */
+#endif
+ case ('M'):
+ /* FALLTHROUGH */
+ case ('m'):
+ /* FALLTHROUGH */
+ case ('f'):
+ /* FALLTHROUGH */
+ case ('F'):
+ /* FALLTHROUGH */
+ case ('*'):
+ switch (*p++) {
case ('('):
- if (0 == *++p || ! isgraph((u_char)*p))
- return(0);
- return(4);
+ len = 2;
+ break;
case ('['):
- for (c = 3, p++; *p && ']' != *p; p++, c++)
- if ( ! isgraph((u_char)*p))
- break;
- return(*p == ']' ? c : 0);
+ term = ']';
+ break;
default:
+ len = 1;
+ p--;
break;
}
- return(3);
+ break;
case ('('):
- if (0 == *++p || ! isgraph((u_char)*p))
- return(0);
- if (0 == *++p || ! isgraph((u_char)*p))
- return(0);
- return(4);
+ len = 2;
+ break;
case ('['):
+ term = ']';
break;
default:
- return(0);
+ len = 1;
+ p--;
+ break;
}
- for (c = 3, p++; *p && ']' != *p; p++, c++)
- if ( ! isgraph((u_char)*p))
- break;
+ if (term) {
+ for ( ; *p && term != *p; p++)
+ if (ASCII_HYPH == *p)
+ *p = '-';
+ return(*p ? (int)(p - sv) : 0);
+ }
- return(*p == ']' ? c : 0);
+ for (i = 0; *p && i < len; i++, p++)
+ if (ASCII_HYPH == *p)
+ *p = '-';
+ return(i == len ? (int)(p - sv) : 0);
}
return(0);
}
+
+int
+mandoc_eos(const char *p, size_t sz, int enclosed)
+{
+ const char *q;
+ int found;
+
+ if (0 == sz)
+ return(0);
+
+ /*
+ * End-of-sentence recognition must include situations where
+ * some symbols, such as `)', allow prior EOS punctuation to
+ * propogate outward.
+ */
+
+ found = 0;
+ for (q = p + sz - 1; q >= p; q--) {
+ switch (*q) {
+ case ('\"'):
+ /* FALLTHROUGH */
+ case ('\''):
+ /* FALLTHROUGH */
+ case (']'):
+ /* FALLTHROUGH */
+ case (')'):
+ if (0 == found)
+ enclosed = 1;
+ break;
+ case ('.'):
+ /* FALLTHROUGH */
+ case ('!'):
+ /* FALLTHROUGH */
+ case ('?'):
+ found = 1;
+ break;
+ default:
+ return(found && (!enclosed || isalnum(*q)));
+ }
+ }
+
+ return(found && !enclosed);
+}
+
+
+int
+mandoc_hyph(const char *start, const char *c)
+{
+
+ /*
+ * Choose whether to break at a hyphenated character. We only
+ * do this if it's free-standing within a word.
+ */
+
+ /* Skip first/last character of buffer. */
+ if (c == start || '\0' == *(c + 1))
+ return(0);
+ /* Skip first/last character of word. */
+ if ('\t' == *(c + 1) || '\t' == *(c - 1))
+ return(0);
+ if (' ' == *(c + 1) || ' ' == *(c - 1))
+ return(0);
+ /* Skip double invocations. */
+ if ('-' == *(c + 1) || '-' == *(c - 1))
+ return(0);
+ /* Skip escapes. */
+ if ('\\' == *(c - 1))
+ return(0);
+
+ return(1);
+}
git.ckatri.com / mandoc.git / blobdiff