/* Read the name of an Info function in the echo area and return the
name. A return value of NULL indicates that no function name could
be read. */
char *
read_function_name (const char *prompt, WINDOW *window)
{
register int i;
char *line;
REFERENCE **array = NULL;
size_t array_index = 0, array_slots = 0;
/* Make an array of REFERENCE which actually contains the names of
the functions available in Info. */
for (i = 0; function_doc_array[i].func; i++)
{
REFERENCE *entry;
entry = xmalloc (sizeof (REFERENCE));
entry->label = xstrdup (function_doc_array[i].func_name);
entry->nodename = NULL;
entry->filename = NULL;
add_pointer_to_array (entry, array_index, array, array_slots, 200);
}
line = info_read_completing_in_echo_area (window, prompt, array);
info_free_references (array);
if (!echo_area_is_active)
window_clear_echo_area ();
return line;
}
/* Manufacture a node containing the footnotes of this node, and
return the manufactured node. If NODE has no footnotes, return a
NULL pointer. */
NODE *
make_footnotes_node (NODE *node)
{
NODE *fn_node, *result = (NODE *)NULL;
long fn_start;
/* Make the initial assumption that the footnotes appear as simple
text within this windows node. */
fn_node = node;
/* See if this node contains the magic footnote label. */
fn_start =
info_search_in_node (FOOTNOTE_LABEL, node, 0, (WINDOW *)NULL, 1, 0);
/* If it doesn't, check to see if it has an associated footnotes node. */
if (fn_start == -1)
{
REFERENCE **refs;
refs = info_xrefs_of_node (node);
if (refs)
{
register int i;
char *refname;
int reflen = strlen ("-Footnotes") + strlen (node->nodename);
refname = (char *)xmalloc (reflen + 1);
strcpy (refname, node->nodename);
strcat (refname, "-Footnotes");
for (i = 0; refs[i]; i++)
if ((refs[i]->nodename != (char *)NULL) &&
/* Support both the older "foo-Footnotes" and the new
style "foo-Footnote-NN" references. */
(strcmp (refs[i]->nodename, refname) == 0 ||
(strncmp (refs[i]->nodename, refname, reflen - 1) == 0 &&
refs[i]->nodename[reflen - 1] == '-' &&
isdigit (refs[i]->nodename[reflen]))))
{
char *filename;
filename = node->parent;
if (!filename)
filename = node->filename;
fn_node = info_get_node (filename, refname);
if (fn_node)
fn_start = 0;
break;
}
free (refname);
info_free_references (refs);
}
}
/* If we never found the start of a footnotes area, quit now. */
if (fn_start == -1)
return ((NODE *)NULL);
/* Make the new node. */
result = (NODE *)xmalloc (sizeof (NODE));
result->flags = 0;
result->display_pos = 0;
/* Get the size of the footnotes appearing within this node. */
{
char *header;
long text_start = fn_start;
header = (char *)xmalloc
(1 + strlen (node->nodename) + strlen (FOOTNOTE_HEADER_FORMAT));
sprintf (header, FOOTNOTE_HEADER_FORMAT, node->nodename);
/* Move the start of the displayed text to right after the first line.
This effectively skips either "---- footno...", or "File: foo...". */
while (text_start < fn_node->nodelen)
if (fn_node->contents[text_start++] == '\n')
break;
result->nodelen = strlen (header) + fn_node->nodelen - text_start;
/* Set the contents of this node. */
result->contents = (char *)xmalloc (1 + result->nodelen);
sprintf (result->contents, "%s", header);
memcpy (result->contents + strlen (header),
fn_node->contents + text_start, fn_node->nodelen - text_start);
name_internal_node (result, footnote_nodename);
free (header);
}
#if defined (NOTDEF)
/* If the footnotes were gleaned from the node that we were called with,
shorten the calling node's display length. */
if (fn_node == node)
narrow_node (node, 0, fn_start);
#endif /* NOTDEF */
return (result);
}
