-/* $Id: mandoc.c,v 1.17 2010/06/01 11:47:28 kristaps Exp $ */
+/* $Id: mandoc.c,v 1.36 2011/01/03 22:42:37 schwarze Exp $ */
/*
- * Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@kth.se>
+ * Copyright (c) 2008, 2009, 2010 Kristaps Dzonsons <kristaps@bsd.lv>
+ * Copyright (c) 2011 Ingo Schwarze <schwarze@openbsd.org>
*
* 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
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS 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
#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 ('X'):
+ /* FALLTHROUGH */
+ case ('x'):
+ /* FALLTHROUGH */
+ case ('S'):
/* FALLTHROUGH */
- case ('`'):
+ case ('R'):
/* FALLTHROUGH */
- case ('q'):
+ case ('N'):
/* FALLTHROUGH */
- case ('-'):
+ case ('l'):
/* FALLTHROUGH */
- case ('~'):
+ case ('L'):
/* FALLTHROUGH */
- case ('^'):
+ case ('H'):
/* FALLTHROUGH */
- case ('%'):
+ case ('h'):
/* FALLTHROUGH */
- case ('0'):
+ case ('D'):
/* FALLTHROUGH */
- case (' '):
+ case ('C'):
/* FALLTHROUGH */
- case ('}'):
+ case ('b'):
/* FALLTHROUGH */
- case ('|'):
+ case ('B'):
/* FALLTHROUGH */
- case ('&'):
+ case ('a'):
/* FALLTHROUGH */
- case ('.'):
+ case ('A'):
+ if (*p++ != '\'')
+ return(0);
+ term = '\'';
+ break;
+#endif
+ case ('h'):
/* FALLTHROUGH */
- case (':'):
+ case ('v'):
/* FALLTHROUGH */
- case ('c'):
- return(2);
- case ('e'):
- return(2);
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;
- ++c;
+ i = 0;
+ if ('+' == *p || '-' == *p) {
+ p++;
+ i = 1;
}
- 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;
+ switch (*p++) {
+ case ('('):
+ len = 2;
+ break;
+ case ('['):
+ term = ']';
+ break;
+ case ('\''):
+ term = '\'';
+ break;
+ case ('0'):
+ i = 1;
+ /* FALLTHROUGH */
+ default:
+ len = 1;
+ p--;
+ break;
}
- /* TODO: needs to handle floating point. */
-
- if ( ! isdigit((u_char)*p))
- return(0);
-
- for (i = 0; isdigit((u_char)*p); i++) {
- if (lim && i >= lim)
+ if (ASCII_HYPH == *p)
+ *p = '-';
+ if ('+' == *p || '-' == *p) {
+ if (i)
+ return(0);
+ p++;
+ }
+
+ /* Handle embedded numerical subexp or escape. */
+
+ if ('(' == *p) {
+ while (*p && ')' != *p)
+ if ('\\' == *p++) {
+ i = mandoc_special(--p);
+ if (0 == i)
+ return(0);
+ p += i;
+ }
+
+ if (')' == *p++)
break;
- ++p;
- ++c;
- }
- if (terminator && terminator < 3) {
- if (1 == terminator && *p != '\'')
- return(0);
- if (2 == terminator && *p != ']')
+ return(0);
+ } else if ('\\' == *p) {
+ if (0 == (i = mandoc_special(p)))
return(0);
- ++p;
- ++c;
+ p += i;
}
- return(c);
+ break;
+#if 0
+ case ('Y'):
+ /* FALLTHROUGH */
+ case ('V'):
+ /* FALLTHROUGH */
+ case ('$'):
+ /* FALLTHROUGH */
+ case ('n'):
+ /* FALLTHROUGH */
+#endif
+ case ('k'):
+ /* FALLTHROUGH */
+ case ('M'):
+ /* FALLTHROUGH */
+ case ('m'):
+ /* FALLTHROUGH */
case ('f'):
/* FALLTHROUGH */
case ('F'):
/* FALLTHROUGH */
case ('*'):
- if (0 == *++p || ! isgraph((u_char)*p))
- return(0);
- switch (*p) {
+ 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;
+ case ('z'):
+ len = 1;
+ if ('\\' == *p) {
+ if (0 == (i = mandoc_special(p)))
+ return(0);
+ p += i;
+ return(*p ? (int)(p - sv) : 0);
+ }
+ break;
+ case ('o'):
+ /* FALLTHROUGH */
+ case ('w'):
+ if ('\'' == *p++) {
+ term = '\'';
+ break;
+ }
+ /* FALLTHROUGH */
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);
}
ptr = calloc(num, size);
if (NULL == ptr) {
perror(NULL);
- exit(EXIT_FAILURE);
+ exit((int)MANDOCLEVEL_SYSERR);
}
return(ptr);
ptr = malloc(size);
if (NULL == ptr) {
perror(NULL);
- exit(EXIT_FAILURE);
+ exit((int)MANDOCLEVEL_SYSERR);
}
return(ptr);
ptr = realloc(ptr, size);
if (NULL == ptr) {
perror(NULL);
- exit(EXIT_FAILURE);
+ exit((int)MANDOCLEVEL_SYSERR);
}
return(ptr);
p = strdup(ptr);
if (NULL == p) {
perror(NULL);
- exit(EXIT_FAILURE);
+ exit((int)MANDOCLEVEL_SYSERR);
}
return(p);
}
+/*
+ * Parse a quoted or unquoted roff-style request or macro argument.
+ * Return a pointer to the parsed argument, which is either the original
+ * pointer or advanced by one byte in case the argument is quoted.
+ * Null-terminate the argument in place.
+ * Collapse pairs of quotes inside quoted arguments.
+ * Advance the argument pointer to the next argument,
+ * or to the null byte terminating the argument line.
+ */
+char *
+mandoc_getarg(char **cpp, mandocmsg msg, void *data, int ln, int *pos)
+{
+ char *start, *cp;
+ int quoted, pairs, white;
+
+ /* Quoting can only start with a new word. */
+ start = *cpp;
+ if ('"' == *start) {
+ quoted = 1;
+ start++;
+ } else
+ quoted = 0;
+
+ pairs = 0;
+ white = 0;
+ for (cp = start; '\0' != *cp; cp++) {
+ /* Move left after quoted quotes and escaped backslashes. */
+ if (pairs)
+ cp[-pairs] = cp[0];
+ if ('\\' == cp[0]) {
+ if ('\\' == cp[1]) {
+ /* Poor man's copy mode. */
+ pairs++;
+ cp++;
+ } else if (0 == quoted && ' ' == cp[1])
+ /* Skip escaped blanks. */
+ cp++;
+ } else if (0 == quoted) {
+ if (' ' == cp[0]) {
+ /* Unescaped blanks end unquoted args. */
+ white = 1;
+ break;
+ }
+ } else if ('"' == cp[0]) {
+ if ('"' == cp[1]) {
+ /* Quoted quotes collapse. */
+ pairs++;
+ cp++;
+ } else {
+ /* Unquoted quotes end quoted args. */
+ quoted = 2;
+ break;
+ }
+ }
+ }
+
+ /* Quoted argument without a closing quote. */
+ if (1 == quoted && msg)
+ (*msg)(MANDOCERR_BADQUOTE, data, ln, *pos, NULL);
+
+ /* Null-terminate this argument and move to the next one. */
+ if (pairs)
+ cp[-pairs] = '\0';
+ if ('\0' != *cp) {
+ *cp++ = '\0';
+ while (' ' == *cp)
+ cp++;
+ }
+ *pos += (cp - start) + (quoted ? 1 : 0);
+ *cpp = cp;
+
+ if ('\0' == *cp && msg && (white || ' ' == cp[-1]))
+ (*msg)(MANDOCERR_EOLNSPACE, data, ln, *pos, NULL);
+
+ return(start);
+}
+
static int
a2time(time_t *t, const char *fmt, const char *p)
int
-mandoc_eos(const char *p, size_t sz)
+mandoc_eos(const char *p, size_t sz, int enclosed)
{
+ const char *q;
+ int found;
if (0 == sz)
return(0);
* propogate outward.
*/
- for ( ; sz; sz--) {
- switch (p[(int)sz - 1]) {
+ found = 0;
+ for (q = p + (int)sz - 1; q >= p; q--) {
+ switch (*q) {
case ('\"'):
/* FALLTHROUGH */
case ('\''):
case (']'):
/* FALLTHROUGH */
case (')'):
+ if (0 == found)
+ enclosed = 1;
break;
case ('.'):
- /* Escaped periods. */
- if (sz > 1 && '\\' == p[(int)sz - 2])
- return(0);
/* FALLTHROUGH */
case ('!'):
/* FALLTHROUGH */
case ('?'):
- return(1);
+ found = 1;
+ break;
default:
- return(0);
+ return(found && (!enclosed || isalnum((unsigned char)*q)));
}
}
- return(0);
+ return(found && !enclosed);
}
git.ckatri.com / mandoc.git / blobdiff