ADDED   xvfs-create-c.c
Index: xvfs-create-c.c
==================================================================
--- /dev/null
+++ xvfs-create-c.c
@@ -0,0 +1,185 @@
+#include <string.h>
+#include <stdio.h>
+#include <ctype.h>
+
+struct options {
+	char *name;
+	char *directory;
+};
+
+enum xvfs_minirivet_mode {
+	XVFS_MINIRIVET_MODE_COPY,
+	XVFS_MINIRIVET_MODE_TCL,
+	XVFS_MINIRIVET_MODE_TCL_PRINT
+};
+
+static int parse_options(int argc, char **argv, struct options *options) {
+	char *arg;
+	char **option;
+	int idx;
+	int retval;
+
+	for (idx = 0; idx < argc; idx++) {
+		arg = argv[idx];
+
+		if (strcmp(arg, "--directory") == 0) {
+			option = &options->directory;
+		} else if (strcmp(arg, "--name") == 0) {
+			option = &options->name;
+		} else {
+			fprintf(stderr, "Invalid argument %s\n", arg);
+
+			return(0);
+		}
+
+		idx++;
+		arg = argv[idx];
+		*option = arg;
+	}
+
+	retval = 1;
+	if (!options->directory) {		
+		fprintf(stderr, "error: --directory must be specified\n");
+		retval = 0;
+	}
+
+	if (!options->name) {
+		fprintf(stderr, "error: --name must be specified\n");
+		retval = 0;
+	}
+
+	return(retval);
+}
+
+static void parse_xvfs_minirivet_directory(FILE *outfp, const char * const directory) {
+	fprintf(outfp, "\t...\n");
+}
+
+static int parse_xvfs_minirivet(FILE *outfp, const char * const file, const char * const name, const char * const directory) {
+	FILE *fp;
+	int ch, ch_buf[3];
+	char tcl_buffer[8192], *tcl_buffer_p, *tcl_buffer_e;
+	enum xvfs_minirivet_mode mode;
+
+	fp = fopen(file, "r");
+	if (!fp) {
+		return(0);
+	}
+
+#define parse_xvfs_minirivet_getbyte(var) var = fgetc(fp); if (var == EOF) { break; }
+
+	mode = XVFS_MINIRIVET_MODE_COPY;
+	while (1) {
+		parse_xvfs_minirivet_getbyte(ch);
+
+		switch (mode) {
+			case XVFS_MINIRIVET_MODE_COPY:
+				if (ch == '<') {
+					parse_xvfs_minirivet_getbyte(ch_buf[0]);
+					if (ch_buf[0] != '?') {
+						fputc('<', outfp);
+						ch = ch_buf[0];
+
+						break;
+					}
+
+					tcl_buffer_p = tcl_buffer;
+					parse_xvfs_minirivet_getbyte(ch_buf[0]);
+					if (ch_buf[0] == '=') {
+						mode = XVFS_MINIRIVET_MODE_TCL_PRINT;
+					} else {
+						mode = XVFS_MINIRIVET_MODE_TCL;
+						*tcl_buffer_p = ch_buf[0];
+						tcl_buffer_p++;
+					}
+					*tcl_buffer_p = '\0';
+					continue;
+				}
+				break;
+			case XVFS_MINIRIVET_MODE_TCL:
+			case XVFS_MINIRIVET_MODE_TCL_PRINT:
+				if (ch == '?') {
+					parse_xvfs_minirivet_getbyte(ch_buf[0]);
+					if (ch_buf[0] != '>') {
+						*tcl_buffer_p = ch;
+						tcl_buffer_p++;
+
+						ch = ch_buf[0];
+						
+						break;
+					}
+
+					*tcl_buffer_p = '\0';
+
+					if (mode == XVFS_MINIRIVET_MODE_TCL_PRINT) {
+						tcl_buffer_p = tcl_buffer;
+						while (*tcl_buffer_p && isspace(*tcl_buffer_p)) {
+							tcl_buffer_p++;
+						}
+						tcl_buffer_e = tcl_buffer_p + strlen(tcl_buffer_p) - 1;
+						while (tcl_buffer_e >= tcl_buffer_p && isspace(*tcl_buffer_e)) {
+							*tcl_buffer_e = '\0';
+							tcl_buffer_e--;
+						}
+
+						if (strcmp(tcl_buffer_p, "$::xvfs::fsName") == 0) {
+							fprintf(outfp, name);
+						} else if (strcmp(tcl_buffer_p, "$::xvfs::fileInfoStruct") == 0) {
+							fprintf(outfp, "static const struct xvfs_file_data xvfs_");
+							fprintf(outfp, name);
+							fprintf(outfp, "_data[] = {\n");
+							parse_xvfs_minirivet_directory(outfp, directory);
+							fprintf(outfp, "};\n");
+						} else if (strcmp(tcl_buffer_p, "[zlib adler32 $::xvfs::fsName]") == 0) {
+							fprintf(outfp, "0");
+						} else {
+							fprintf(outfp, "@INVALID@%s@INVALID@", tcl_buffer_p);
+						}
+					}
+
+					mode = XVFS_MINIRIVET_MODE_COPY;
+					continue;
+				}
+				break;
+		}
+
+		switch (mode) {
+			case XVFS_MINIRIVET_MODE_COPY:
+				fputc(ch, outfp);
+				break;
+			case XVFS_MINIRIVET_MODE_TCL:
+			case XVFS_MINIRIVET_MODE_TCL_PRINT:
+				*tcl_buffer_p = ch;
+				tcl_buffer_p++;
+				break;
+		}
+	}
+
+#undef parse_xvfs_minirivet_getbyte
+
+	return(1);
+}
+
+static int xvfs_create(FILE *outfp, const char * const name, const char * const directory) {
+	return(parse_xvfs_minirivet(outfp, "lib/xvfs/xvfs.c.rvt", name, directory));
+}
+
+int main(int argc, char **argv) {
+	struct options options = {0};
+	int parse_options_ret, xvfs_create_ret;
+
+	argc--;
+	argv++;
+
+	parse_options_ret = parse_options(argc, argv, &options);
+	if (!parse_options_ret) {
+		return(1);
+	}
+
+	xvfs_create_ret = xvfs_create(stdout, options.name, options.directory);
+	if (!xvfs_create_ret) {
+		return(1);
+	}
+
+	return(0);
+}