Tcl Library Procedures Tcl_Concat(3TCL)
_________________________________________________________________
NAME
Tcl_Concat - concatenate a collection of strings
SYNOPSIS
#include
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 originalstrings separated by spaces. This procedure behaves dif-
ferently 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 stringis 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 |ATTRIBUTES |
See attributes(5) for descriptions of the following attri- |
butes: | Tcl Last change: 7.5 1Tcl Library Procedures Tcl_Concat(3TCL)
_______________________________________ |
| ATTRIBUTE TYPE | ATTRIBUTE VALUE| |
|____________________|__________________|_ |
| Availability | runtime/tcl-8 | |
|____________________|__________________|_ |
| Interface Stability| Uncommitted | ||____________________|_________________| ||||
NOTES | Source for Tcl is available on http://opensolaris.org. | Tcl Last change: 7.5 2