orcc: Add handling of command line options

diff --git a/tools/orcc.c b/tools/orcc.c
index b7006fd..33f8f98 100644 (file)
--- a/tools/orcc.c
+++ b/tools/orcc.c
@@ -1,10 +1,13 @@
 
+#include "config.h"
+
 #include <orc/orc.h>
 #include <orc-test/orctest.h>
 #include <orc/orcparse.h>
 
 #include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
 
 static char * read_file (const char *filename);
 void output_code (OrcProgram *p, FILE *output);
@@ -15,6 +18,34 @@ void output_code_no_orc (OrcProgram *p, FILE *output);
 static void print_defines (FILE *output);
 static void print_exec_header (FILE *output);
 
+int verbose = 0;
+
+enum {
+  MODE_IMPL,
+  MODE_HEADER,
+  MODE_TEST
+};
+int mode = MODE_IMPL;
+
+void help (void)
+{
+  printf("Usage:\n");
+  printf("  orcc [OPTION...] INPUT_FILE\n");
+  printf("\n");
+  printf("Help Options:\n");
+  printf("  -?, --help                      Show help options\n");
+  printf("\n");
+  printf("Application Options:\n");
+  printf("  -v, --verbose                   Output more information\n");
+  printf("  -o, --output=FILE               Write output to FILE\n");
+  printf("  --implementation                Produce C code implementing functions\n");
+  printf("  --header                        Produce C header for functions\n");
+  printf("  --test                          Produce test code for functions\n");
+  printf("\n");
+
+  exit (0);
+}
+
 int
 main (int argc, char *argv[])
 {
@@ -22,94 +53,137 @@ main (int argc, char *argv[])
   int n;
   int i;
   OrcProgram **programs;
-  const char *filename = "test.orc";
+  char *output_file = NULL;
+  char *input_file = NULL;
   FILE *output;
 
   orc_init ();
   orc_test_init ();
 
-  if (argc >= 2) {
-    filename = argv[1];
+  for(i=1;i<argc;i++) {
+    if (strcmp(argv[i], "--header") == 0) {
+      mode = MODE_HEADER;
+    } else if (strcmp(argv[i], "--implementation") == 0) {
+      mode = MODE_IMPL;
+    } else if (strcmp(argv[i], "--test") == 0) {
+      mode = MODE_TEST;
+    } else if (strcmp (argv[i], "--output") == 0 ||
+        strcmp(argv[i], "-o") == 0) {
+      if (i+1 < argc) {
+        output_file = argv[i+1];
+        i++;
+      } else {
+        help();
+      }
+    } else if (strcmp(argv[i], "--help") == 0 ||
+        strcmp(argv[i], "-h") == 0) {
+      help ();
+    } else if (strcmp(argv[i], "--verbose") == 0 ||
+        strcmp(argv[i], "-v") == 0) {
+      verbose = 1;
+    } else if (strcmp(argv[i], "--version") == 0) {
+      printf("Orc Compiler " PACKAGE_VERSION "\n");
+      exit (0);
+    } else if (strncmp(argv[i], "-", 1) == 0) {
+      printf("Unknown option: %s\n", argv[i]);
+      exit (1);
+    } else {
+      if (input_file == NULL) {
+        input_file = argv[i];
+      } else {
+        printf("More than one input file specified: %s\n", argv[i]);
+        exit (1);
+      }
+    }
+  }
+
+  if (input_file == NULL) {
+    printf("No input file specified\n");
+    exit (1);
   }
-  code = read_file (filename);
+
+  if (output_file == NULL) {
+    if (mode == MODE_IMPL) {
+      output_file = "out.c";
+    } else if (mode == MODE_HEADER) {
+      output_file = "out.h";
+    } else if (mode == MODE_TEST) {
+      output_file = "out_test.c";
+    }
+  }
+
+  code = read_file (input_file);
   if (!code) {
-    printf("orcc <file.orc>\n");
+    printf("Could not read input file: %s\n", input_file);
     exit(1);
   }
 
   n = orc_parse (code, &programs);
 
-  output = fopen ("out.c", "w");
 
-  fprintf(output, "\n");
-  fprintf(output, "/* autogenerated from %s */\n", filename);
-  fprintf(output, "\n");
-  fprintf(output, "#ifndef DISABLE_ORC\n");
-  fprintf(output, "#include <orc/orc.h>\n");
-  fprintf(output, "#else\n");
-  fprintf(output, "#include <stdint.h>\n");
-  print_exec_header (output);
-  fprintf(output, "#endif\n");
-  fprintf(output, "\n");
-  print_defines (output);
-  fprintf(output, "\n");
-  for(i=0;i<n;i++){
-    output_code (programs[i], output);
+  output = fopen (output_file, "w");
+  if (!output) {
+    printf("Could not write output file: %s\n", output_file);
+    exit(1);
   }
 
-  fclose (output);
-
-  output = fopen ("out.h", "w");
-
-  fprintf(output, "\n");
-  fprintf(output, "/* autogenerated from %s */\n", filename);
   fprintf(output, "\n");
-  fprintf(output, "#ifndef _ORC_OUT_H_\n");
-  fprintf(output, "#define _ORC_OUT_H_\n");
+  fprintf(output, "/* autogenerated from %s */\n", input_file);
   fprintf(output, "\n");
-  for(i=0;i<n;i++){
-    output_code_header (programs[i], output);
-  }
-  fprintf(output, "\n");
-  fprintf(output, "#endif\n");
-  fprintf(output, "\n");
-
-  fclose (output);
 
-  /* test program */
-  output = fopen ("test_out.c", "w");
-
-  fprintf(output, "\n");
-  fprintf(output, "/* autogenerated from %s */\n", filename);
-  fprintf(output, "\n");
-  fprintf(output, "#include <orc/orc.h>\n");
-  fprintf(output, "#include <orc-test/orctest.h>\n");
-  fprintf(output, "#include <stdio.h>\n");
-  fprintf(output, "#include <stdlib.h>\n");
-  fprintf(output, "\n");
-  print_defines (output);
-  fprintf(output, "\n");
-  for(i=0;i<n;i++){
-    fprintf(output, "/* %s */\n", programs[i]->name);
-    output_code_backup (programs[i], output);
-  }
-  fprintf(output, "\n");
-  fprintf(output, "int\n");
-  fprintf(output, "main (int argc, char *argv[])\n");
-  fprintf(output, "{\n");
-  fprintf(output, "  int error = FALSE;\n");
-  fprintf(output, "\n");
-  fprintf(output, "  orc_test_init ();\n");
-  fprintf(output, "\n");
-  for(i=0;i<n;i++){
-    output_code_test (programs[i], output);
+  if (mode == MODE_IMPL) {
+    fprintf(output, "#ifndef DISABLE_ORC\n");
+    fprintf(output, "#include <orc/orc.h>\n");
+    fprintf(output, "#else\n");
+    fprintf(output, "#include <stdint.h>\n");
+    print_exec_header (output);
+    fprintf(output, "#endif\n");
+    fprintf(output, "\n");
+    print_defines (output);
+    fprintf(output, "\n");
+    for(i=0;i<n;i++){
+      output_code (programs[i], output);
+    }
+  } else if (mode == MODE_HEADER) {
+    fprintf(output, "#ifndef _ORC_OUT_H_\n");
+    fprintf(output, "#define _ORC_OUT_H_\n");
+    fprintf(output, "\n");
+    for(i=0;i<n;i++){
+      output_code_header (programs[i], output);
+    }
+    fprintf(output, "\n");
+    fprintf(output, "#endif\n");
+    fprintf(output, "\n");
+  } else if (mode == MODE_TEST) {
+    fprintf(output, "#include <orc/orc.h>\n");
+    fprintf(output, "#include <orc-test/orctest.h>\n");
+    fprintf(output, "#include <stdio.h>\n");
+    fprintf(output, "#include <stdlib.h>\n");
+    fprintf(output, "\n");
+    print_defines (output);
+    fprintf(output, "\n");
+    for(i=0;i<n;i++){
+      fprintf(output, "/* %s */\n", programs[i]->name);
+      output_code_backup (programs[i], output);
+    }
+    fprintf(output, "\n");
+    fprintf(output, "int\n");
+    fprintf(output, "main (int argc, char *argv[])\n");
+    fprintf(output, "{\n");
+    fprintf(output, "  int error = FALSE;\n");
+    fprintf(output, "\n");
+    fprintf(output, "  orc_test_init ();\n");
+    fprintf(output, "\n");
+    for(i=0;i<n;i++){
+      output_code_test (programs[i], output);
+    }
+    fprintf(output, "\n");
+    fprintf(output, "  if (error) {\n");
+    fprintf(output, "    return 1;\n");
+    fprintf(output, "  };\n");
+    fprintf(output, "  return 0;\n");
+    fprintf(output, "}\n");
   }
-  fprintf(output, "\n");
-  fprintf(output, "  if (error) {\n");
-  fprintf(output, "    return 1;\n");
-  fprintf(output, "  };\n");
-  fprintf(output, "  return 0;\n");
-  fprintf(output, "}\n");
 
   fclose (output);