+ gly = ESCAPE_SPECIAL;
+ *start = --*end;
+ *sz = 1;
+ break;
+ }
+
+ assert(ESCAPE_ERROR != gly);
+
+ /*
+ * Read up to the terminating character,
+ * paying attention to nested escapes.
+ */
+
+ if ('\0' != term) {
+ while (**end != term) {
+ switch (**end) {
+ case ('\0'):
+ return(ESCAPE_ERROR);
+ case ('\\'):
+ (*end)++;
+ if (ESCAPE_ERROR ==
+ mandoc_escape(end, NULL, NULL))
+ return(ESCAPE_ERROR);
+ break;
+ default:
+ (*end)++;
+ break;
+ }
+ }
+ *sz = (*end)++ - *start;
+ } else {
+ assert(*sz > 0);
+ if ((size_t)*sz > strlen(*start))
+ return(ESCAPE_ERROR);
+ *end += *sz;
+ }
+
+ /* Run post-processors. */
+
+ switch (gly) {
+ case (ESCAPE_FONT):
+ 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;
+
+ switch (**start) {
+ case ('3'):
+ /* FALLTHROUGH */
+ case ('B'):
+ gly = ESCAPE_FONTBOLD;
+ break;
+ case ('2'):
+ /* FALLTHROUGH */
+ case ('I'):
+ gly = ESCAPE_FONTITALIC;
+ break;
+ case ('P'):
+ gly = ESCAPE_FONTPREV;
+ break;
+ case ('1'):
+ /* FALLTHROUGH */
+ case ('R'):
+ gly = ESCAPE_FONTROMAN;
+ break;
+ }
+ break;
+ case (ESCAPE_SPECIAL):
+ if (1 == *sz && 'c' == **start)
+ gly = ESCAPE_NOSPACE;
+ break;
+ default:
+ break;
+ }
+
+ return(gly);
+}
+
+/*
+ * 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.
+ * NUL-terminate the argument in place.
+ * Collapse pairs of quotes inside quoted arguments.
+ * Advance the argument pointer to the next argument,
+ * or to the NUL byte terminating the argument line.
+ */
+char *
+mandoc_getarg(struct mparse *parse, char **cpp, int ln, int *pos)
+{
+ char *start, *cp;
+ int quoted, pairs, white;
+
+ /* Quoting can only start with a new word. */
+ start = *cpp;
+ quoted = 0;
+ if ('"' == *start) {
+ quoted = 1;
+ start++;
+ }
+
+ pairs = 0;
+ white = 0;
+ for (cp = start; '\0' != *cp; cp++) {
+
+ /*
+ * Move the following text left
+ * after quoted quotes and after "\\" and "\t".
+ */
+ if (pairs)
+ cp[-pairs] = cp[0];
+
+ if ('\\' == cp[0]) {
+ /*
+ * 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++;
+ break;
+ case (' '):
+ /* Skip escaped blanks. */
+ if (0 == quoted)
+ cp++;
+ break;
+ default:
+ break;
+ }
+ } 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)
+ mandoc_msg(MANDOCERR_BADQUOTE, parse, ln, *pos, NULL);
+
+ /* NUL-terminate this argument and move to the next one. */
+ if (pairs)
+ cp[-pairs] = '\0';
+ if ('\0' != *cp) {
+ *cp++ = '\0';
+ while (' ' == *cp)
+ cp++;
+ }
+ *pos += (int)(cp - start) + (quoted ? 1 : 0);
+ *cpp = cp;
+
+ if ('\0' == *cp && (white || ' ' == cp[-1]))
+ mandoc_msg(MANDOCERR_EOLNSPACE, parse, ln, *pos, NULL);
+
+ return(start);
+}
+
+static int
+a2time(time_t *t, const char *fmt, const char *p)
+{
+ struct tm tm;
+ char *pp;
+
+ memset(&tm, 0, sizeof(struct tm));
+
+ pp = NULL;
+#ifdef HAVE_STRPTIME
+ pp = strptime(p, fmt, &tm);
+#endif
+ if (NULL != pp && '\0' == *pp) {
+ *t = mktime(&tm);
+ return(1);
+ }
+
+ return(0);
+}
+
+static char *
+time2a(time_t t)
+{
+ struct tm *tm;
+ char *buf, *p;
+ size_t ssz;
+ int isz;
+
+ tm = localtime(&t);
+
+ /*
+ * Reserve space:
+ * up to 9 characters for the month (September) + blank
+ * up to 2 characters for the day + comma + blank
+ * 4 characters for the year and a terminating '\0'
+ */
+ p = buf = mandoc_malloc(10 + 4 + 4 + 1);
+
+ if (0 == (ssz = strftime(p, 10 + 1, "%B ", tm)))
+ goto fail;
+ p += (int)ssz;
+
+ if (-1 == (isz = snprintf(p, 4 + 1, "%d, ", tm->tm_mday)))
+ goto fail;
+ p += isz;
+
+ if (0 == strftime(p, 4 + 1, "%Y", tm))
+ goto fail;
+ return(buf);
+
+fail:
+ free(buf);
+ return(NULL);
+}
+
+char *
+mandoc_normdate(struct mparse *parse, char *in, int ln, int pos)
+{
+ char *out;
+ time_t t;
+
+ if (NULL == in || '\0' == *in ||
+ 0 == strcmp(in, "$" "Mdocdate$")) {
+ mandoc_msg(MANDOCERR_NODATE, parse, ln, pos, NULL);
+ time(&t);
git.ckatri.com / mandoc.git / blobdiff