-/* $Id: mandoc.c,v 1.34 2010/08/29 11:28:09 kristaps Exp $ */
+/* $Id: mandoc.c,v 1.36 2011/01/03 22:42:37 schwarze Exp $ */
/*
* 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
ptr = calloc(num, size);
if (NULL == ptr) {
perror(NULL);
- exit(MANDOCLEVEL_SYSERR);
+ exit((int)MANDOCLEVEL_SYSERR);
}
return(ptr);
ptr = malloc(size);
if (NULL == ptr) {
perror(NULL);
- exit(MANDOCLEVEL_SYSERR);
+ exit((int)MANDOCLEVEL_SYSERR);
}
return(ptr);
ptr = realloc(ptr, size);
if (NULL == ptr) {
perror(NULL);
- exit(MANDOCLEVEL_SYSERR);
+ exit((int)MANDOCLEVEL_SYSERR);
}
return(ptr);
p = strdup(ptr);
if (NULL == p) {
perror(NULL);
- exit(MANDOCLEVEL_SYSERR);
+ 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)