NAME¶
Tcl_Concat - concatenate a collection of strings
SYNOPSIS¶
#include <tcl.h>
const char *
Tcl_Concat(argc, argv)
ARGUMENTS¶
- int argc (in)
- Number of strings.
- const char *const argv[] (in)
- Array of strings to concatenate. Must have argc entries.
DESCRIPTION¶
Tcl_Concat is a utility procedure used by several of the Tcl commands.
Given a collection of strings, it concatenates them together into a single
string, with the original strings separated by spaces. This procedure behaves
differently than
Tcl_Merge, in that the arguments are simply
concatenated: no effort is made to ensure proper list structure. However, in
most common usage the arguments will all be proper lists themselves; if this
is true, then the result will also have proper list structure.
Tcl_Concat eliminates leading and trailing white space as it copies
strings from
argv to the result. If an element of
argv consists
of nothing but white space, then that string is ignored entirely. This
white-space removal was added to make the output of the
concat command
cleaner-looking.
The result string is dynamically allocated using
Tcl_Alloc; the caller
must eventually release the space by calling
Tcl_Free.
SEE ALSO¶
Tcl_ConcatObj
KEYWORDS¶
concatenate, strings