summaryrefslogtreecommitdiffstats
path: root/win/tclAppInit.c
diff options
context:
space:
mode:
authorrjohnson <rjohnson>1998-03-26 14:56:55 (GMT)
committerrjohnson <rjohnson>1998-03-26 14:56:55 (GMT)
commit72d823b9193f9ee2b0318563b49363cd08c11f24 (patch)
treec168cc164a71f320db9dcdfe7518ba7bd0d2c8d9 /win/tclAppInit.c
parent2b5738da524e944cda39e24c0a87b745a43bd8c3 (diff)
downloadtcl-72d823b9193f9ee2b0318563b49363cd08c11f24.zip
tcl-72d823b9193f9ee2b0318563b49363cd08c11f24.tar.gz
tcl-72d823b9193f9ee2b0318563b49363cd08c11f24.tar.bz2
Initial revision
Diffstat (limited to 'win/tclAppInit.c')
-rw-r--r--win/tclAppInit.c259
1 files changed, 259 insertions, 0 deletions
diff --git a/win/tclAppInit.c b/win/tclAppInit.c
new file mode 100644
index 0000000..10a77cb
--- /dev/null
+++ b/win/tclAppInit.c
@@ -0,0 +1,259 @@
+/*
+ * tclAppInit.c --
+ *
+ * Provides a default version of the main program and Tcl_AppInit
+ * procedure for Tcl applications (without Tk). Note that this
+ * program must be built in Win32 console mode to work properly.
+ *
+ * Copyright (c) 1996 by Sun Microsystems, Inc.
+ *
+ * See the file "license.terms" for information on usage and redistribution
+ * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+ *
+ * SCCS: @(#) tclAppInit.c 1.12 97/04/30 11:04:50
+ */
+
+#include "tcl.h"
+#include <windows.h>
+#include <locale.h>
+
+#ifdef TCL_TEST
+EXTERN int Tcltest_Init _ANSI_ARGS_((Tcl_Interp *interp));
+EXTERN int TclObjTest_Init _ANSI_ARGS_((Tcl_Interp *interp));
+#endif /* TCL_TEST */
+
+static void setargv _ANSI_ARGS_((int *argcPtr, char ***argvPtr));
+
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * main --
+ *
+ * This is the main program for the application.
+ *
+ * Results:
+ * None: Tcl_Main never returns here, so this procedure never
+ * returns either.
+ *
+ * Side effects:
+ * Whatever the application does.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+main(argc, argv)
+ int argc; /* Number of command-line arguments. */
+ char **argv; /* Values of command-line arguments. */
+{
+ char *p;
+ char buffer[MAX_PATH];
+
+ /*
+ * Set up the default locale to be standard "C" locale so parsing
+ * is performed correctly.
+ */
+
+ setlocale(LC_ALL, "C");
+
+ setargv(&argc, &argv);
+
+ /*
+ * Replace argv[0] with full pathname of executable, and forward
+ * slashes substituted for backslashes.
+ */
+
+ GetModuleFileName(NULL, buffer, sizeof(buffer));
+ argv[0] = buffer;
+ for (p = buffer; *p != '\0'; p++) {
+ if (*p == '\\') {
+ *p = '/';
+ }
+ }
+
+ Tcl_Main(argc, argv, Tcl_AppInit);
+ return 0; /* Needed only to prevent compiler warning. */
+}
+
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * Tcl_AppInit --
+ *
+ * This procedure performs application-specific initialization.
+ * Most applications, especially those that incorporate additional
+ * packages, will have their own version of this procedure.
+ *
+ * Results:
+ * Returns a standard Tcl completion code, and leaves an error
+ * message in interp->result if an error occurs.
+ *
+ * Side effects:
+ * Depends on the startup script.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+Tcl_AppInit(interp)
+ Tcl_Interp *interp; /* Interpreter for application. */
+{
+ if (Tcl_Init(interp) == TCL_ERROR) {
+ return TCL_ERROR;
+ }
+
+#ifdef TCL_TEST
+ if (Tcltest_Init(interp) == TCL_ERROR) {
+ return TCL_ERROR;
+ }
+ Tcl_StaticPackage(interp, "Tcltest", Tcltest_Init,
+ (Tcl_PackageInitProc *) NULL);
+ if (TclObjTest_Init(interp) == TCL_ERROR) {
+ return TCL_ERROR;
+ }
+#endif /* TCL_TEST */
+
+ /*
+ * Call the init procedures for included packages. Each call should
+ * look like this:
+ *
+ * if (Mod_Init(interp) == TCL_ERROR) {
+ * return TCL_ERROR;
+ * }
+ *
+ * where "Mod" is the name of the module.
+ */
+
+ /*
+ * Call Tcl_CreateCommand for application-specific commands, if
+ * they weren't already created by the init procedures called above.
+ */
+
+ /*
+ * Specify a user-specific startup file to invoke if the application
+ * is run interactively. Typically the startup file is "~/.apprc"
+ * where "app" is the name of the application. If this line is deleted
+ * then no user-specific startup file will be run under any conditions.
+ */
+
+ Tcl_SetVar(interp, "tcl_rcFileName", "~/tclshrc.tcl", TCL_GLOBAL_ONLY);
+ return TCL_OK;
+}
+
+/*
+ *-------------------------------------------------------------------------
+ *
+ * setargv --
+ *
+ * Parse the Windows command line string into argc/argv. Done here
+ * because we don't trust the builtin argument parser in crt0.
+ * Windows applications are responsible for breaking their command
+ * line into arguments.
+ *
+ * 2N backslashes + quote -> N backslashes + begin quoted string
+ * 2N + 1 backslashes + quote -> literal
+ * N backslashes + non-quote -> literal
+ * quote + quote in a quoted string -> single quote
+ * quote + quote not in quoted string -> empty string
+ * quote -> begin quoted string
+ *
+ * Results:
+ * Fills argcPtr with the number of arguments and argvPtr with the
+ * array of arguments.
+ *
+ * Side effects:
+ * Memory allocated.
+ *
+ *--------------------------------------------------------------------------
+ */
+
+static void
+setargv(argcPtr, argvPtr)
+ int *argcPtr; /* Filled with number of argument strings. */
+ char ***argvPtr; /* Filled with argument strings (malloc'd). */
+{
+ char *cmdLine, *p, *arg, *argSpace;
+ char **argv;
+ int argc, size, inquote, copy, slashes;
+
+ cmdLine = GetCommandLine();
+
+ /*
+ * Precompute an overly pessimistic guess at the number of arguments
+ * in the command line by counting non-space spans.
+ */
+
+ size = 2;
+ for (p = cmdLine; *p != '\0'; p++) {
+ if (isspace(*p)) {
+ size++;
+ while (isspace(*p)) {
+ p++;
+ }
+ if (*p == '\0') {
+ break;
+ }
+ }
+ }
+ argSpace = (char *) ckalloc((unsigned) (size * sizeof(char *)
+ + strlen(cmdLine) + 1));
+ argv = (char **) argSpace;
+ argSpace += size * sizeof(char *);
+ size--;
+
+ p = cmdLine;
+ for (argc = 0; argc < size; argc++) {
+ argv[argc] = arg = argSpace;
+ while (isspace(*p)) {
+ p++;
+ }
+ if (*p == '\0') {
+ break;
+ }
+
+ inquote = 0;
+ slashes = 0;
+ while (1) {
+ copy = 1;
+ while (*p == '\\') {
+ slashes++;
+ p++;
+ }
+ if (*p == '"') {
+ if ((slashes & 1) == 0) {
+ copy = 0;
+ if ((inquote) && (p[1] == '"')) {
+ p++;
+ copy = 1;
+ } else {
+ inquote = !inquote;
+ }
+ }
+ slashes >>= 1;
+ }
+
+ while (slashes) {
+ *arg = '\\';
+ arg++;
+ slashes--;
+ }
+
+ if ((*p == '\0') || (!inquote && isspace(*p))) {
+ break;
+ }
+ if (copy != 0) {
+ *arg = *p;
+ arg++;
+ }
+ p++;
+ }
+ *arg = '\0';
+ argSpace = arg + 1;
+ }
+ argv[argc] = NULL;
+
+ *argcPtr = argc;
+ *argvPtr = argv;
+}