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Diffstat (limited to 'comp/lucas-standen-NEA/code2/comp.c')
-rw-r--r--comp/lucas-standen-NEA/code2/comp.c103
1 files changed, 65 insertions, 38 deletions
diff --git a/comp/lucas-standen-NEA/code2/comp.c b/comp/lucas-standen-NEA/code2/comp.c
index 402f797..f37ffed 100644
--- a/comp/lucas-standen-NEA/code2/comp.c
+++ b/comp/lucas-standen-NEA/code2/comp.c
@@ -1,6 +1,7 @@
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
+#include <stdbool.h>
#include "tokenizer.h"
#include "appendsnprintf.h"
@@ -16,26 +17,28 @@ char *names[] = {
"endif", // takes no args // 5
"elif", // same as if, but only executes if the prev statment didnt // 6
"else", // its else! // 7
- "for", // takes a iterator and type, a condition, and an increment // 8
+ "for", // takes a iterator and type, a start point, a condition, and an increment // 8
"endfor", // takes no args // 9
- "write", // takes an int and puts it on the screen // 10
- "symbol", // takes a name and return type and args
- "+",
- "-",
- "*",
- "/",
- "=",
- "!=",
- "<",
- ">",
- "<=",
- ">=",
- "cast",
- "typeof",
- "exit",
- "return",
+ "symbol", // takes a name and return type and args // 10
+ // arithmetic
+ "+", // 11
+ "-", // 12
+ "*", // 13
+ "/", // 14
+ // comparison
+ "=", // 15
+ "!=", // 16
+ "<", // 17
+ ">", // 18
+ "<=", // 19
+ ">=", // 20
+
+ "exit", // 21
+ "return", // 22
};
+char *compile(astNode *node);
+
char *vartypeToC(char *str, char *out){
char *name = malloc(strlen(str));
char *type = malloc(strlen(str));
@@ -60,7 +63,7 @@ char *vartypeToC(char *str, char *out){
}
type[j] = '\0';
- char *outbuf = malloc(64);
+ char *outbuf = calloc(0, 64);
outbuf = appendsnprintf(outbuf, MAXOUTLEN, "%s %s", type, name);
out = appendsnprintf(out, MAXOUTLEN, "%s", outbuf);
free(type);
@@ -84,12 +87,25 @@ char *reversepolishToC(astNode *exp, char *out){
return out;
}
+astNode *processChildren(astNode *node){
+ for (int i = 0; i < 8; i++){
+ if (node->children[i] != NULL){
+ node->args[i] = compile(node->children[i]);
+ node->children[i] = NULL;
+ }
+ }
+ return node;
+}
+
+
char *compile(astNode *node){
- char *out = malloc(MAXOUTLEN);
+ char *out = calloc(0, MAXOUTLEN);
+ node = processChildren(node);
if (strcmp(names[0], node->func) == 0){
out = appendsnprintf(out, MAXOUTLEN, "%s %s(", node->args[1], node->args[0]);
int i = 2;
while (node->args[i] != NULL){
+ if (i != 2) out = appendsnprintf(out, MAXOUTLEN, ",", node->args[i]);
out = vartypeToC(node->args[i], out);
i++;
}
@@ -108,17 +124,14 @@ char *compile(astNode *node){
out = appendsnprintf(out, MAXOUTLEN, " = %s;\n", node->args[1]);
}
else if (strcmp(names[4], node->func) == 0){
- out = appendsnprintf(out, MAXOUTLEN, "if (");
- out = reversepolishToC(node->children[0], out);
+ out = appendsnprintf(out, MAXOUTLEN, "if (%s", node->args[0]);
out = appendsnprintf(out, MAXOUTLEN, "){\n");
}
else if (strcmp(names[5], node->func) == 0){
out = appendsnprintf(out, MAXOUTLEN, "}\n");
}
else if (strcmp(names[6], node->func) == 0){
- out = appendsnprintf(out, MAXOUTLEN, "}\n");
- out = appendsnprintf(out, MAXOUTLEN, "else if (");
- out = reversepolishToC(node->children[0], out);
+ out = appendsnprintf(out, MAXOUTLEN, "else if (%s", node->args[0]);
out = appendsnprintf(out, MAXOUTLEN, "){\n");
}
else if (strcmp(names[7], node->func) == 0){
@@ -128,20 +141,14 @@ char *compile(astNode *node){
else if (strcmp(names[8], node->func) == 0){
out = appendsnprintf(out, MAXOUTLEN, "for (");
out = vartypeToC(node->args[0], out);
- out = appendsnprintf(out, MAXOUTLEN, " = 0;");
- out = reversepolishToC(node->children[1], out);
- out = appendsnprintf(out, MAXOUTLEN, "; %s+=%s){", getVarName(node->args[0]), node->args[2]);
+ out = appendsnprintf(out, MAXOUTLEN, " = %s;", node->args[1]);
+ out = appendsnprintf(out, MAXOUTLEN, "%s", node->args[2]);
+ out = appendsnprintf(out, MAXOUTLEN, "; %s+=%s){", getVarName(node->args[0]), node->args[3]);
}
else if (strcmp(names[9], node->func) == 0){
out = appendsnprintf(out, MAXOUTLEN, "}\n");
}
else if (strcmp(names[10], node->func) == 0){
- out = appendsnprintf(out, MAXOUTLEN, "printf(\"");
- out = appendsnprintf(out, MAXOUTLEN, "%%d\\n");
- out = appendsnprintf(out, MAXOUTLEN, "\", %s);", node->args[0]);
-
- }
- else if (strcmp(names[11], node->func) == 0){
out = appendsnprintf(out, MAXOUTLEN, "%s %s(", node->args[1], node->args[0]);
int i = 2;
while (node->args[i] != NULL){
@@ -150,19 +157,39 @@ char *compile(astNode *node){
}
out = appendsnprintf(out, MAXOUTLEN, ");\n");
}
- else if (strcmp(names[12], node->func) == 0){
- out = reversepolishToC(node->children[0], out);
- }
-
+ else if (strcmp(names[21], node->func) == 0){
+ out = appendsnprintf(out, MAXOUTLEN, "exit(%s);\n", node->args[0]);
+ }
+ else if (strcmp(names[22], node->func) == 0){
+ out = appendsnprintf(out, MAXOUTLEN, "return %s;\n", node->args[0]);
+ }
+
else {
+ // arithmetic operators and comparitors
+ for (int i = 0; i < 9; i++){
+ if (strcmp(names[11+i], node->func) == 0){
+ out = reversepolishToC(node, out);
+ goto end;
+ }
+ }
+
out = appendsnprintf(out, MAXOUTLEN, "%s(", node->func);
int i = 0;
while (node->args[i] != NULL){
+ if (i != 0) out = appendsnprintf(out, MAXOUTLEN, ",", node->args[i]);
out = appendsnprintf(out, MAXOUTLEN, "%s", node->args[i]);
i++;
}
- out = appendsnprintf(out, MAXOUTLEN, ");\n");
+ out = appendsnprintf(out, MAXOUTLEN, ")");
}
+end:
return out;
}
+void Compile(astNode *line, FILE *f){
+ char *code = compile(line);
+ int len = strlen(code);
+ if (code[len-2] == ';' || code[len-2] == '{' || code[len-2] == '}') fprintf(f, "%s", code);
+ else fprintf(f, "%s;\n", code);
+ free(code);
+}