-/* $Id: mandoc.c,v 1.65 2012/05/31 22:38:16 schwarze Exp $ */
+/* $Id: mandoc.c,v 1.75 2013/12/31 23:23:10 schwarze Exp $ */
/*
* Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
- * Copyright (c) 2011, 2012 Ingo Schwarze <schwarze@openbsd.org>
+ * Copyright (c) 2011, 2012, 2013 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
case ('C'):
if ('\'' != **start)
return(ESCAPE_ERROR);
- gly = ESCAPE_SPECIAL;
*start = ++*end;
+ if ('u' == (*start)[0] && '\'' != (*start)[1])
+ gly = ESCAPE_UNICODE;
+ else
+ gly = ESCAPE_SPECIAL;
term = '\'';
break;
+ /*
+ * Escapes taking no arguments at all.
+ */
+ case ('d'):
+ /* FALLTHROUGH */
+ case ('u'):
+ return(ESCAPE_IGNORE);
+
/*
* The \z escape is supposed to output the following
* character without advancing the cursor position.
/* FALLTHROUGH */
case ('b'):
/* FALLTHROUGH */
+ case ('B'):
+ /* FALLTHROUGH */
case ('D'):
/* FALLTHROUGH */
case ('o'):
/* FALLTHROUGH */
case ('R'):
/* FALLTHROUGH */
+ case ('w'):
+ /* FALLTHROUGH */
case ('X'):
/* FALLTHROUGH */
case ('Z'):
* These escapes are of the form \X'N', where 'X' is the trigger
* and 'N' resolves to a numerical expression.
*/
- case ('B'):
- /* FALLTHROUGH */
case ('h'):
/* FALLTHROUGH */
case ('H'):
case ('L'):
/* FALLTHROUGH */
case ('l'):
- gly = ESCAPE_NUMBERED;
/* FALLTHROUGH */
case ('S'):
/* FALLTHROUGH */
case ('v'):
/* FALLTHROUGH */
- case ('w'):
- /* FALLTHROUGH */
case ('x'):
if ('\'' != **start)
return(ESCAPE_ERROR);
- if (ESCAPE_ERROR == gly)
- gly = ESCAPE_IGNORE;
+ gly = ESCAPE_IGNORE;
*start = ++*end;
term = '\'';
break;
switch (gly) {
case (ESCAPE_FONT):
- /*
- * Pretend that the constant-width font modes are the
- * same as the regular font modes.
- */
- if (2 == *sz && 'C' == **start) {
- (*start)++;
- (*sz)--;
+ if (2 == *sz) {
+ if ('C' == **start) {
+ /*
+ * Treat constant-width font modes
+ * just like regular font modes.
+ */
+ (*start)++;
+ (*sz)--;
+ } else {
+ if ('B' == (*start)[0] && 'I' == (*start)[1])
+ gly = ESCAPE_FONTBI;
+ break;
+ }
} else if (1 != *sz)
break;
* 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.
+ * NUL-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.
+ * or to the NUL byte terminating the argument line.
*/
char *
mandoc_getarg(struct mparse *parse, char **cpp, int ln, int *pos)
pairs = 0;
white = 0;
for (cp = start; '\0' != *cp; cp++) {
- /* Move left after quoted quotes and escaped backslashes. */
+
+ /*
+ * Move the following text left
+ * after quoted quotes and after "\\" and "\t".
+ */
if (pairs)
cp[-pairs] = cp[0];
+
if ('\\' == cp[0]) {
- if ('\\' == cp[1]) {
- /* Poor man's copy mode. */
+ /*
+ * In copy mode, translate double to single
+ * backslashes and backslash-t to literal tabs.
+ */
+ switch (cp[1]) {
+ case ('t'):
+ cp[0] = '\t';
+ /* FALLTHROUGH */
+ case ('\\'):
pairs++;
cp++;
- } else if (0 == quoted && ' ' == cp[1])
+ break;
+ case (' '):
/* Skip escaped blanks. */
- cp++;
+ if (0 == quoted)
+ cp++;
+ break;
+ default:
+ break;
+ }
} else if (0 == quoted) {
if (' ' == cp[0]) {
/* Unescaped blanks end unquoted args. */
if (1 == quoted)
mandoc_msg(MANDOCERR_BADQUOTE, parse, ln, *pos, NULL);
- /* Null-terminate this argument and move to the next one. */
+ /* NUL-terminate this argument and move to the next one. */
if (pairs)
cp[-pairs] = '\0';
if ('\0' != *cp) {
}
int
-mandoc_eos(const char *p, size_t sz, int enclosed)
+mandoc_eos(const char *p, size_t sz)
{
- const char *q;
- int found;
+ const char *q;
+ int enclosed, found;
if (0 == sz)
return(0);
* propagate outward.
*/
- found = 0;
+ enclosed = found = 0;
for (q = p + (int)sz - 1; q >= p; q--) {
switch (*q) {
case ('\"'):
return(found && !enclosed);
}
-/*
- * Find out whether a line is a macro line or not. If it is, adjust the
- * current position and return one; if it isn't, return zero and don't
- * change the current position.
- */
-int
-mandoc_getcontrol(const char *cp, int *ppos)
-{
- int pos;
-
- pos = *ppos;
-
- if ('\\' == cp[pos] && '.' == cp[pos + 1])
- pos += 2;
- else if ('.' == cp[pos] || '\'' == cp[pos])
- pos++;
- else
- return(0);
-
- while (' ' == cp[pos] || '\t' == cp[pos])
- pos++;
-
- *ppos = pos;
- return(1);
-}
-
/*
* Convert a string to a long that may not be <0.
* If the string is invalid, or is less than 0, return -1.
git.ckatri.com / mandoc.git / blobdiff