Rework compiler command line parsing, it can now assemble and link automatically

include/Data.h

@@ -6,6 +6,7 @@
 #pragma once
 #include <stdio.h>
 #include <Defs.h>
+#include <stdbool.h>
 
 #ifndef extern_
 #define extern_ extern
@@ -16,6 +17,15 @@
 
 extern_ struct SymbolTable Symbols[SYMBOLS];
 
+extern_ bool OptDumpTree;
+extern_ bool OptKeepAssembly;
+extern_ bool OptAssembleFiles;
+extern_ bool OptLinkFiles;
+extern_ bool OptVerboseOutput;
+
+extern_ char* OutputFileName;
+extern_ char* CurrentASMFile, *CurrentObjectFile;
+
 extern_ int   TypeSizes[9];
 extern_ char* TypeNames[9];
 

include/Defs.h

@@ -244,6 +244,18 @@ enum StructureType {
                     // This is a typedef
 };
 
+
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * *
+ * * * * * * *      A R G U M E N T S      * * * * * * *
+ * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+
+char* Suffixate(char* String, char Suffix);
+char* Compile(char* InputFile);
+char* Assemble(char* InputFile);
+void Link(char* Output, char* Objects[]);
+void DisplayUsage(char* ProgName);
+
+
 /* * * * * * * * * * * * * * * * * * * * * * * * * * * *
  * * * * * * * * *    L E X I N G      * * * * * * * * *
  * * * * * * * * * * * * * * * * * * * * * * * * * * * */

src/Delegate.c

@@ -0,0 +1,122 @@
+/*************/
+/*GEMWIRE    */
+/*    ERYTHRO*/
+/*************/
+
+#include <Defs.h>
+#include <Data.h>
+
+char* Suffixate(char* String, char Suffix) {
+    char* Pos, *NewStr;
+
+    if((NewStr = strdup(String)) == NULL) 
+        return NULL;
+
+    if((Pos = strrchr(NewStr, '.')) == NULL)
+        return NULL;
+    
+    Pos++;
+
+    if(*Pos == '\0')
+        return NULL;
+    
+    *Pos++ = Suffix;
+    *Pos = '\0';
+    return NewStr;
+}
+
+char* Compile(char* InputFile) {
+    char* OutputName;
+    OutputName = Suffixate(InputFile, 's');
+    if(OutputName == NULL) {
+        fprintf(stderr, "%s must have a suffix.\r\n", InputFile);
+        exit(1);
+    }
+
+    if((SourceFile = fopen(InputFile, "r")) == NULL) {
+        fprintf(stderr, "Unable to open %s: %s\n", InputFile, strerror(errno));
+        exit(1);
+    } 
+
+    if((OutputFile = fopen(OutputName, "w")) == NULL) {
+        fprintf(stderr, "Unable to open %s: %s\n", OutputName, strerror(errno));
+        exit(1);
+    }
+
+    Line = 1;
+    Overread = '\n';
+    CurrentGlobal = 0;
+    CurrentLocal = SYMBOLS - 1;
+
+    if(OptVerboseOutput)
+        printf("Compiling %s\r\n", InputFile);
+    
+    Tokenise(&CurrentToken);
+
+    AssemblerPreamble();
+
+    ParseGlobals();
+
+    fclose(OutputFile);
+    return OutputName;
+}
+
+char* Assemble(char* InputFile) {
+    char Command[TEXTLEN];
+    int Error;
+    char* OutputName;
+    OutputName = Suffixate(InputFile, 'o');
+    if(OutputName == NULL) {
+        fprintf(stderr, "%s must have a suffix.\r\n", InputFile);
+        exit(1);
+    }
+
+    snprintf(Command, TEXTLEN, "%s %s %s", "as -o ", OutputName, InputFile);
+    if(OptVerboseOutput)
+        printf("%s\n", Command);
+    
+    Error = system(Command);
+
+    if(Error != 0) {
+        fprintf(stderr, "Assembling of %s failed with code %d\n", InputFile, Error);
+        exit(1);
+    }
+    return OutputName;
+}
+
+void Link(char* Output, char* Objects[]) {
+    int Count, Size = TEXTLEN, Error;
+    char Command[TEXTLEN], *CommandPtr;
+
+    CommandPtr = Command;
+    Count = snprintf(CommandPtr, Size, "%s %s ", "gcc -o ", OutputFileName);
+    CommandPtr += Count;
+    Size -= Count;
+
+    while(*Objects != NULL) {
+        Count = snprintf(CommandPtr, Size, "%s ", *Objects);
+        CommandPtr += Count;
+        Size -= Count;
+        Objects++;
+    }
+
+    if(OptVerboseOutput)
+        printf("%s\n", Command);
+    
+    Error = system(Command);
+
+    if(Error != 0) {
+        fprintf(stderr, "Link failure\n");
+        exit(1);
+    }
+}
+
+void DisplayUsage(char* ProgName) {
+    fprintf(stderr, "Usage: %s -[vcST] {-o output} file [file ...]\n", ProgName);
+    fprintf(stderr, "       -v: Verbose Output Level\n");
+    fprintf(stderr, "       -c: Compile without Linking\n");
+    fprintf(stderr, "       -S: Assemble without Linking\n");
+    fprintf(stderr, "       -T: Dump AST\n");
+    fprintf(stderr, "       -o: Name of the destination [executable/object/assembly] file.\n");
+    exit(1);
+}

src/Main.c

@@ -80,57 +80,108 @@ char* TypeNames[9]  = { "none", "char", "int", "long", "void", "charptr", "intpt
 
 
 int main(int argc, char* argv[]) {
-    Line = 1;
+/*     Line = 1;
     Overread = '\n';
     CurrentGlobal = 0;
-    CurrentLocal = SYMBOLS - 1;
     struct ASTNode* Node;
+    CurrentLocal = SYMBOLS - 1; */
+    OptDumpTree = false;
+    OptKeepAssembly = false;
+    OptAssembleFiles = false;
+    OptLinkFiles = true;
+    OptVerboseOutput = false;
+    char* ObjectFiles[100];
+    int ObjectCount = 0;
 
+    int i;
+    for(i = 1; i < argc; i++) {
+        if(*argv[i] != '-') // not a flag
+            break;
 
-    if((SourceFile = fopen(argv[1], "r")) == NULL) {
-        fprintf(stderr, "Unable to open %s: %s\n", argv[1], strerror(errno));
-        exit(1);
+        for(int j = 1; (*argv[i] == '-') && argv[i][j]; j++) {
+            switch(argv[i][j]) {
+                case 'o':
+                    OutputFileName = argv[++i];
+                    
+                    break;
+                case 'T':
+                   OptDumpTree = true;
+                   break;
+                case 'c':
+                    OptAssembleFiles = true;
+                    OptKeepAssembly = false;
+                    OptLinkFiles = false;
+                    break;
+                case 'S':
+                    OptAssembleFiles = false;
+                    OptKeepAssembly = true;
+                    OptLinkFiles = false;
+                    break;
+                case 'v':
+                    OptVerboseOutput = true;
+                    break;
+                default:
+                    DisplayUsage(argv[0]);
+            }
+        }
     }
 
-    if((OutputFile = fopen(argv[2], "w")) == NULL) {
-        fprintf(stderr, "Unable to open %s: %s\n", argv[2], strerror(errno));
-        exit(1);
+    if(i >= argc)
+        DisplayUsage(argv[0]);
+
+    while(i < argc) {
+        CurrentASMFile = Compile(argv[i]);
+        if(OptLinkFiles || OptAssembleFiles) {
+            CurrentObjectFile = Assemble(CurrentASMFile);
+            if(ObjectCount == 98) {
+                fprintf(stderr, "Too many inputs");
+                return 1;
+            }
+            ObjectFiles[ObjectCount++] = CurrentObjectFile;
+            ObjectFiles[ObjectCount] = NULL;
+        }
+
+        if(!OptKeepAssembly)
+            unlink(CurrentASMFile);
+        i++;
     }
 
-    Tokenise(&CurrentToken);
+    if(OptLinkFiles) {
+        Link(OutputFileName, ObjectFiles);
+        if(!OptAssembleFiles) {
+            for(i = 0; ObjectFiles[i] != NULL; i++)
+                unlink(ObjectFiles[i]);
+        }
+    }
 
-    AssemblerPreamble();
+    return 0;
 
-    ParseGlobals();
-
-    //AsFunctionEpilogue();
-
-    //Node = ParsePrecedenceASTNode();
-    //printf("%d\n", ParseAST(Node));
-
-    //AssembleNode(Node);
-
-    fclose(OutputFile);
-
-    exit(0);
 }
 
 void Die(char* Error) {
     fprintf(stderr, "%s on line %d\n", Error, Line);
+    fclose(OutputFile);
+    unlink(OutputFileName);
     exit(1);
 }
 
 void DieMessage(char* Error, char* Reason) {
     fprintf(stderr, "%s: %s on line %d\n", Error, Reason, Line);
+    fclose(OutputFile);
+    unlink(OutputFileName);
     exit(1);
 }
 
 void DieDecimal(char* Error, int Number) {
     fprintf(stderr, "%s: %d on line %d\n", Error, Number, Line);
+    fclose(OutputFile);
+    unlink(OutputFileName);
     exit(1);
 }
 
 void DieChar(char* Error, int Char) {
     fprintf(stderr, "%s: %c on line %d\n", Error, Char, Line);
+    fclose(OutputFile);
+    unlink(OutputFileName);
     exit(1);
 }

tests/cat.er

@@ -11,7 +11,7 @@ int :: main() {
 
     textbuffer = "                                                             ";
 
-    sourcefile = open("tests/cat", 0);
+    sourcefile = open("tests/cat.er", 0);
     if(sourcefile =? -1) {
         return (1);
     }