Use a character-table for quick per-character substitution in `tr'. As

[mandoc.git] / mdoc.c

diff --git a/mdoc.c b/mdoc.c
index a648e9a50c81cbbc9946446548aead326a02a96c..b20182056fc9ade3f30a5b026cebf4527ba6ed70 100644 (file)
--- a/mdoc.c
+++ b/mdoc.c
@@ -1,4 +1,4 @@
-/*     $Id: mdoc.c,v 1.189 2011/07/18 07:46:41 kristaps Exp $ */
+/*     $Id: mdoc.c,v 1.195 2011/07/28 14:17:11 kristaps Exp $ */
 /*
  * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
  * Copyright (c) 2010 Ingo Schwarze <schwarze@openbsd.org>
@@ -97,6 +97,9 @@ static        struct mdoc_node *node_alloc(struct mdoc *, int, int,
                                enum mdoct, enum mdoc_type);
 static int               node_append(struct mdoc *, 
                                struct mdoc_node *);
+#if 0
+static int               mdoc_preptext(struct mdoc *, int, char *, int);
+#endif
 static int               mdoc_ptext(struct mdoc *, int, char *, int);
 static int               mdoc_pmacro(struct mdoc *, int, char *, int);
 
@@ -233,11 +236,11 @@ mdoc_addeqn(struct mdoc *m, const struct eqn *ep)
        /* No text before an initial macro. */
 
        if (SEC_NONE == m->lastnamed) {
-               mdoc_pmsg(m, ep->line, ep->pos, MANDOCERR_NOTEXT);
+               mdoc_pmsg(m, ep->ln, ep->pos, MANDOCERR_NOTEXT);
                return(1);
        }
 
-       n = node_alloc(m, ep->line, ep->pos, MDOC_MAX, MDOC_EQN);
+       n = node_alloc(m, ep->ln, ep->pos, MDOC_MAX, MDOC_EQN);
        n->eqn = ep;
 
        if ( ! node_append(m, n))
@@ -565,16 +568,9 @@ int
 mdoc_word_alloc(struct mdoc *m, int line, int pos, const char *p)
 {
        struct mdoc_node *n;
-       size_t            sv, len;
-
-       len = strlen(p);
 
        n = node_alloc(m, line, pos, MDOC_MAX, MDOC_TEXT);
-       n->string = mandoc_malloc(len + 1);
-       sv = strlcpy(n->string, p, len + 1);
-
-       /* Prohibit truncation. */
-       assert(sv < len + 1);
+       n->string = roff_strdup(m->roff, p);
 
        if ( ! node_append(m, n))
                return(0);
@@ -650,6 +646,59 @@ mdoc_node_delete(struct mdoc *m, struct mdoc_node *p)
        mdoc_node_free(p);
 }
 
+#if 0
+/*
+ * Pre-treat a text line.
+ * Text lines can consist of equations, which must be handled apart from
+ * the regular text.
+ * Thus, use this function to step through a line checking if it has any
+ * equations embedded in it.
+ * This must handle multiple equations AND equations that do not end at
+ * the end-of-line, i.e., will re-enter in the next roff parse.
+ */
+static int
+mdoc_preptext(struct mdoc *m, int line, char *buf, int offs)
+{
+       char            *start, *end;
+       char             delim;
+
+       while ('\0' != buf[offs]) {
+               /* Mark starting position if eqn is set. */
+               start = NULL;
+               if ('\0' != (delim = roff_eqndelim(m->roff)))
+                       if (NULL != (start = strchr(buf + offs, delim)))
+                               *start++ = '\0';
+
+               /* Parse text as normal. */
+               if ( ! mdoc_ptext(m, line, buf, offs))
+                       return(0);
+
+               /* Continue only if an equation exists. */
+               if (NULL == start)
+                       break;
+
+               /* Read past the end of the equation. */
+               offs += start - (buf + offs);
+               assert(start == &buf[offs]);
+               if (NULL != (end = strchr(buf + offs, delim))) {
+                       *end++ = '\0';
+                       while (' ' == *end)
+                               end++;
+               }
+
+               /* Parse the equation itself. */
+               roff_openeqn(m->roff, NULL, line, offs, buf);
+
+               /* Process a finished equation? */
+               if (roff_closeeqn(m->roff))
+                       if ( ! mdoc_addeqn(m, roff_eqn(m->roff)))
+                               return(0);
+               offs += (end - (buf + offs));
+       } 
+
+       return(1);
+}
+#endif
 
 /*
  * Parse free-form text, that is, a line that does not begin with the
@@ -703,11 +752,6 @@ mdoc_ptext(struct mdoc *m, int line, char *buf, int offs)
        ws = NULL;
        for (c = end = buf + offs; *c; c++) {
                switch (*c) {
-               case '-':
-                       if (mandoc_hyph(buf + offs, c))
-                               *c = ASCII_HYPH;
-                       ws = NULL;
-                       break;
                case ' ':
                        if (NULL == ws)
                                ws = c;