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Applied Dominic Ludlam's patch to allow quoted args in gstreamer-launch

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Original commit message from CVS:
Applied Dominic Ludlam's patch to allow quoted args in gstreamer-launch
This commit is contained in:
Wim Taymans 2001-03-06 20:04:42 +00:00
parent ef48e57a9e
commit 5a15653ca1
1 changed files with 61 additions and 36 deletions
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97
gst/gstparse.c
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@ -323,8 +323,9 @@ gst_parse_launch(const gchar *cmdline,GstBin *parent)
gst_parse_priv priv;
gchar **argvn;
gint newargc;
gint len;
int i,j,k;
gint i;
const gchar *cp, *start, *end;
GSList *string_list = NULL, *slist;
priv.bincount = 0;
priv.threadcount = 0;
@ -333,46 +334,64 @@ gst_parse_launch(const gchar *cmdline,GstBin *parent)
priv.verbose = FALSE;
priv.debug = FALSE;
// first walk through quickly and see how many more slots we need
len = strlen(cmdline);
newargc = 1;
for (i=0;i<len;i++) {
// if it's a space, it denotes a new arg
if (cmdline[i] == ' ') newargc++;
// if it's a brace and isn't followed by a space, give it an arg
if (strchr("([{}])",cmdline[i])) {
// not followed by space, gets one
if (cmdline[i+1] != ' ') newargc++;
end = cmdline + strlen(cmdline);
newargc = 0;
// Extract the arguments to a gslist in reverse order
for (cp = cmdline; cp < end; ) {
i = strcspn(cp, "([{}]) \"");
if (i > 0) {
// normal argument - copy and add to the list
string_list = g_slist_prepend(string_list, g_strndup(cp, i));
newargc++;
cp += i;
}
// skip spaces
while (cp < end && *cp == ' ')
cp++;
// handle quoted arguments
if (*cp == '"') {
start = ++cp;
// find matching quote
while (cp < end && *cp != '"')
cp++;
// make sure we got it
if (cp == end) {
g_warning("gst_parse_launch: Unbalanced quote in command line");
// FIXME: The list leaks here
return 0;
}
// copy the string sans quotes
string_list = g_slist_prepend(string_list, g_strndup(start, cp - start));
newargc++;
cp += 2; // skip the quote aswell
}
// brackets exist in a separate argument slot
if (*cp && strchr("([{}])", *cp)) {
string_list = g_slist_prepend(string_list, g_strndup(cp, 1));
newargc++;
cp++;
}
}
// now allocate the new argv array
argvn = g_new0(char *,newargc+1);
GST_DEBUG(0,"supposed to have %d args\n",newargc);
argvn = g_new0(char *,newargc);
GST_DEBUG(0,"got %d args\n",newargc);
// now attempt to construct the new arg list
j = 0;k = 0;
for (i=0;i<len+1;i++) {
// if it's a delimiter
if (strchr("([{}]) ",cmdline[i]) || (cmdline[i] == '\0')) {
// extract the previous arg
if (i-k > 0) {
if (cmdline[k] == ' ') k++;
argvn[j] = g_new0(char,(i-k)+1);
memcpy(argvn[j],&cmdline[k],i-k);
// reverse the list and put the strings in the new array
i = newargc;
// catch misparses
if (strlen(argvn[j]) > 0) j++;
}
k = i;
for (slist = string_list; slist; slist = slist->next)
argvn[--i] = slist->data;
// if this is a bracket, construct a word
if ((cmdline[i] != ' ') && (cmdline[i] != '\0')) {
argvn[j++] = g_strdup_printf("%c",cmdline[i]);
k++;
}
}
}
g_slist_free(string_list);
// print them out
for (i=0;i<newargc;i++) {
@ -382,5 +401,11 @@ gst_parse_launch(const gchar *cmdline,GstBin *parent)
// set up the elementcounts hash
priv.elementcounts = g_hash_table_new(g_str_hash,g_str_equal);
return gst_parse_launch_cmdline(newargc,argvn,parent,&priv);
// do it!
i = gst_parse_launch_cmdline(newargc,argvn,parent,&priv);
// GST_DEBUG(0, "Finished - freeing temporary argument array");
// g_strfreev(argvn);
return i;
}