Ugly fix for `Bl' or `Bd' causing badness when nested in `Bl -hang' lists.

[mandoc.git] / mdoc_argv.c

diff --git a/mdoc_argv.c b/mdoc_argv.c
index 287913f6057feccb69c423fa4dbe5ef5df29f987..1fe0017eb666a3951c3e44bac4718055bf980074 100644 (file)
--- a/mdoc_argv.c
+++ b/mdoc_argv.c
@@ -1,4 +1,4 @@
-/*     $Id: mdoc_argv.c,v 1.18 2009/07/18 18:59:33 kristaps Exp $ */
+/*     $Id: mdoc_argv.c,v 1.21 2009/07/20 14:12:27 kristaps Exp $ */
 /*
  * Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@kth.se>
  *
@@ -326,6 +326,14 @@ mdoc_argv_free(struct mdoc_arg *p)
 }
 
 
+int
+mdoc_zargs(struct mdoc *m, int line, int *pos, char *buf, char **v)
+{
+
+       return(args(m, line, pos, buf, 0, v));
+}
+
+
 int
 mdoc_args(struct mdoc *m, int line, 
                int *pos, char *buf, int tok, char **v)
@@ -413,7 +421,7 @@ args(struct mdoc *m, int line, int *pos,
         */
 
        if (ARGS_TABSEP & fl) {
-               /* Scan ahead to unescaped tab. */
+               /* Scan ahead to tab (can't be escaped). */
                p = strchr(*v, '\t');
 
                /* Scan ahead to unescaped `Ta'. */
@@ -426,59 +434,40 @@ args(struct mdoc *m, int line, int *pos,
                                break;
                }
 
-               /* Choose delimiter tab/Ta. */
-               if (p && pp)
-                       p = (p < pp ? p : pp);
-               else if ( ! p && pp)
+               /* 
+                * Adjust new-buffer position to be beyond delimiter
+                * mark (e.g., Ta -> end + 2).
+                */
+               if (p && pp) {
+                       *pos += pp < p ? 2 : 1;
+                       p = pp < p ? pp : p;
+               } else if (p && ! pp) {
+                       *pos += 1;
+               } else if (pp && ! p) {
                        p = pp;
+                       *pos += 2;
+               } else
+                       p = strchr(*v, 0);
 
-               /* Strip delimiter's preceding whitespace. */
-               /* FIXME: escaped whitespace? */
-               if (p && p > *v) {
-                       pp = p - 1;
-                       while (pp > *v && ' ' == *pp)
-                               pp--;
-                       if (pp == *v && ' ' == *pp) 
-                               *pp = 0;
-                       else if (' ' == *pp)
-                               *(pp + 1) = 0;
-               }
-
-               /* ...in- and proceding whitespace. */
-               if (p && ('\t' != *p)) {
-                       *p++ = 0;
-                       *p++ = 0;
-               } else if (p)
-                       *p++ = 0;
-
-               if (p) {
-                       while (' ' == *p)
-                               p++;
-                       if (0 != *p)
-                               *(p - 1) = 0;
-                       *pos += (int)(p - *v);
-               } 
-
-               /* Some warnings, if applicable. */
-               if (p && 0 == *p)
-                       if ( ! mdoc_pwarn(m, line, *pos, ECOLEMPTY))
-                               return(ARGS_ERROR);
-               if (p && 0 == *p && p > *v && ' ' == *(p - 1))
+               /* Whitespace check for eoln case... */
+               if (0 == *p && ' ' == *(p - 1))
                        if ( ! mdoc_pwarn(m, line, *pos, ETAILWS))
                                return(ARGS_ERROR);
 
-               /* Non-eoln case returns now. */
-               if (p)
-                       return(ARGS_PHRASE);
+               *pos += (int)(p - *v);
 
-               /* Configure the eoln case, too. */
-               p = strchr(*v, 0);
-               assert(p);
+               /* Strip delimiter's preceding whitespace. */
+               pp = p - 1;
+               while (pp > *v && ' ' == *pp) {
+                       if (pp > *v && '\\' == *(pp - 1))
+                               break;
+                       pp--;
+               }
+               *(pp + 1) = 0;
 
-               if (p > *v && ' ' == *(p - 1))
-                       if ( ! mdoc_pwarn(m, line, *pos, ETAILWS))
-                               return(ARGS_ERROR);
-               *pos += (int)(p - *v);
+               /* Strip delimiter's proceeding whitespace. */
+               for (pp = &buf[*pos]; ' ' == *pp; pp++, (*pos)++)
+                       /* Skip ahead. */ ;
 
                return(ARGS_PHRASE);
        }