Reorganize project structure

vm/vm-lines.c

@@ -0,0 +1,69 @@
+#include <stdlib.h>
+#include "vm-lines.h"
+
+LINE* mkline(int size) {
+	LINE* ln = (LINE*)malloc(sizeof(LINE));
+	ln->tokens = (char**)malloc(sizeof(char*)*size);
+	ln->count = 0;
+	return ln;
+}
+
+void addtoken(LINE* ln, char* token) {
+	ln->tokens[ln->count] = token;
+	ln->count++;
+}
+
+void println(LINE* ln, FILE* stream) {
+	for(int i = 0; i < ln->count; i++) {
+		fprintf(stream, "%s", ln->tokens[i]);
+		if(i + 1 < ln->count)
+			fprintf(stream, " ");
+	}
+	fprintf(stream, "\n");
+}
+
+void printlns(LINE* lns, FILE* stream) {
+	while(lns != NULL) {
+		println(lns, stream);
+		lns = lns->next;
+	}
+}
+
+void freeln(LINE* ln) {
+	for(int i = 0; i < ln->count; i++)
+		free(ln->tokens[i]);
+	free(ln);
+}
+
+void freelns(LINE* lns) {
+	LINE* next = lns->next;
+	freeln(lns);
+	if(next != NULL)
+		freelns(next);
+}
+
+LINEBLOCK* mklnblk(LINE* start) {
+	LINEBLOCK* blk = (LINEBLOCK*)malloc(sizeof(LINEBLOCK));
+	blk->head = start;
+	blk->tail = start;
+	return blk;
+}
+
+LINEBLOCK* mergelnblks(LINEBLOCK* head, LINEBLOCK* tail) {
+	if(head == NULL)
+		return tail;
+	head->tail->next = tail->head;
+	head->tail = tail->tail;
+	free(tail);
+	return head;
+}
+
+void appendln(LINEBLOCK* lnblk, LINE* ln) {
+	lnblk->tail->next = ln;
+	lnblk->tail = ln;
+}
+
+void appendlnbefore(LINEBLOCK* lnblk, LINE* ln) {
+	ln->next = lnblk->head;
+	lnblk->head = ln;
+}

vm/vm-lines.h

@@ -0,0 +1,38 @@
+#ifndef VM_LINES_H
+#define VM_LINES_H
+#include <stdio.h>
+
+/* vm-lines
+ * Unified standard for the compiler's output and vm-translator's input.
+ * It is also used by vm-parser when reading .vm files. */
+
+// Data types
+typedef struct line {
+	char** tokens;
+	int count;
+	struct line* next;
+} LINE;
+
+typedef struct {
+	LINE* head;
+	LINE* tail;
+} LINEBLOCK;
+
+// Line manipulation
+LINE* mkline(int size);
+void addtoken(LINE* ln, char* token);
+
+// Line printing
+void println(LINE* ln, FILE* stream);
+void printlns(LINE* lns, FILE* stream);
+
+// Line freeing
+void freeln(LINE* ln);
+void freelns(LINE* lns);
+
+// Line block manipulation
+LINEBLOCK* mklnblk(LINE* start);
+LINEBLOCK* mergelnblks(LINEBLOCK* head, LINEBLOCK* tail);
+void appendln(LINEBLOCK* lnblk, LINE* ln);
+void appendlnbefore(LINEBLOCK* lnblk, LINE* ln);
+#endif