Merge pull request #251 from openscad/windows_console

Windows console. Marius gave approval for Merge in Issue discussion. 

1 files changed, 84 insertions, 0 deletions

diff --git a/src/winconsole.c b/src/winconsole.c
new file mode 100644
index 0000000..de8e682
--- /dev/null
+++ b/src/winconsole.c
@@ -0,0 +1,84 @@
+/*
+ Enable easy piping under Windows(TM) command line.
+
+ We use the 'devenv'(TM) method, which means we have two binary files:
+
+  openscad.com, with IMAGE_SUBSYSTEM_WINDOWS_CUI flag set
+  openscad.exe, with IMAGE_SUBSYSTEM_WINDOWS_GUI flag set
+
+ The .com version is a 'wrapper' for the .exe version. If you call
+ 'openscad' with no extension from a script or shell, the .com version
+ is prioritized by the OS and feeds the GUI stdout to the console. We use
+ pure C to minimize binary size when cross-compiling (~10kbytes). See Also:
+
+ http://stackoverflow.com/questions/493536/can-one-executable-be-both-a-console-and-gui-app
+ http://blogs.msdn.com/b/oldnewthing/archive/2009/01/01/9259142.aspx
+ http://blogs.msdn.com/b/junfeng/archive/2004/02/06/68531.aspx
+ http://msdn.microsoft.com/en-us/library/aa298534%28v=vs.60%29.aspx
+ http://cournape.wordpress.com/2008/07/29/redirecting-stderrstdout-in-cmdexe/
+ Open Group popen() documentation
+ inkscapec by Jos Hirth work at http://kaioa.com
+ Nop Head's OpenSCAD_cl at github.com
+
+ TODO:
+ Work with unicode: http://www.i18nguy.com/unicode/c-unicode.html
+*/
+
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#define MAXCMDLEN 64000
+#define BUFFSIZE 42
+
+int main( int argc, char * argv[] )
+{
+	FILE *cmd_stdout;
+	char cmd[MAXCMDLEN];
+	char buffer[BUFFSIZE];
+	char *fgets_result;
+	int eof = 0;
+	int pclose_result;
+	int i;
+	int result = 0;
+
+	strcat( cmd, "\0" );
+	strcat( cmd, "openscad.exe" );
+	for ( i = 1 ; i < argc ; ++i ) {
+		strcat( cmd, " " );
+		strcat( cmd, argv[i] );
+	}
+	strcat( cmd, " ");
+	strcat( cmd, " 2>&1"); // capture stderr and stdout
+
+	cmd_stdout = _popen( cmd, "rt" );
+	if ( cmd_stdout == NULL ) {
+		printf( "Error opening _popen for command: %s", cmd );
+		perror( "Error message:" );
+		return 1;
+	}
+
+	while ( !eof )
+	{
+		fgets_result = fgets( buffer, BUFFSIZE, cmd_stdout );
+		if ( fgets_result == NULL ) {
+			if ( ferror( cmd_stdout ) ) {
+				printf("Error reading from stdout of %s\n", cmd);
+				result = 1;
+			}
+			if ( feof( cmd_stdout ) ) {
+				eof = 1;
+			}
+		} else {
+			fprintf( stdout, "%s", buffer );
+		}
+	}
+
+	pclose_result = _pclose( cmd_stdout );
+	if ( pclose_result < 0 ) {
+		perror("Error while closing stdout for command:");
+		result = 1;
+	}
+
+	return result;
+}