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pjht 2018-09-09 12:15:27 -05:00
commit 2cb008cf02
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289
cinc.xcodeproj/project.pbxproj Normal file
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7
cinc.xcodeproj/project.xcworkspace/contents.xcworkspacedata generated Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<Workspace
version = "1.0">
<FileRef
location = "self:cinc.xcodeproj">
</FileRef>
</Workspace>

8
cinc.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>IDEDidComputeMac32BitWarning</key>
<true/>
</dict>
</plist>

5
cinc.xcodeproj/xcuserdata/peterterpstra.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<Bucket
type = "1"
version = "2.0">
</Bucket>

14
cinc.xcodeproj/xcuserdata/peterterpstra.xcuserdatad/xcschemes/xcschememanagement.plist Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>SchemeUserState</key>
<dict>
<key>cinc.xcscheme</key>
<dict>
<key>orderHint</key>
<integer>0</integer>
</dict>
</dict>
</dict>
</plist>

28
cinc/main.c Normal file
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//
// main.c
// cinc
//
// Created by Peter Terpstra on 9/7/18.
// Copyright © 2018 Peter Terpstra. All rights reserved.
//
#include <stdio.h>
#include <stdbool.h>
#include <stdlib.h>
#include "tokenize.h"
Token* tokenfunc(void);
int main(int argc, const char * argv[]) {
char* prgstr="int main() {\nreturn 0;\n}";
Token* tokens=tokenize(prgstr);
Token* tok=tokens;
while (tok) {
print_tok(tok);
if (tok->type==TYPE_EOF) {
break;
}
tok=tok->next;
}
free_toklist(tokens);
}

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cinc/token.c Normal file
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//
// token.c
// cinc
//
// Created by Peter Terpstra on 9/7/18.
// Copyright © 2018 Peter Terpstra. All rights reserved.
//
#include "token.h"
#include <stdlib.h>
#include <stdio.h>
Token* new_token(unsigned char type,TokenVal* val, Token* prev) {
Token* token=malloc(sizeof(Token));
token->type=type;
token->val=val;
token->next=NULL;
if (prev) {
prev->next=token;
}
return token;
}
TokenVal* val_from_int(int val) {
TokenVal* tval=malloc(sizeof(TokenVal));
tval->type=intval;
tval->intval=val;
tval->constflag=true;
return tval;
}
TokenVal* val_from_const_str(const char* val) {
TokenVal* tval=malloc(sizeof(TokenVal));
tval->type=strval;
tval->strval=val;
tval->constflag=true;
return tval;
}
TokenVal* val_from_str(char* val) {
TokenVal* tval=malloc(sizeof(TokenVal));
tval->type=strval;
tval->strval=val;
tval->constflag=false;
return tval;
}
void print_tok(Token* token) {
Token tok=*token;
if (tok.type>127) {
printf("Token of type ");
switch (tok.type) {
case TYPE_EOF:
printf("EOF");
break;
case TYPE_IDENT:
printf("IDENT");
break;
case TYPE_NUM:
printf("NUM");
break;
default:
break;
}
if (tok.val) {
printf(", and value ");
TokenVal val=*(tok.val);
switch (val.type) {
case intval:
printf("%d\n",val.intval);
break;
case strval:
printf("%s\n",val.strval);
break;
default:
break;
}
} else {
printf("\n");
}
} else {
printf("Token %c\n",tok.type);
}
}

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cinc/tokenize.c Normal file
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//
// tokenize.c
// cinc
//
// Created by Peter Terpstra on 9/7/18.
// Copyright © 2018 Peter Terpstra. All rights reserved.
//
#include "tokenize.h"
#include "token.h"
#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
#include <ctype.h>
#define ID_MAX_SIZE 31
Token* next_token(int* strpos, char* prg, Token* prev) {
char current=prg[*strpos];
if (isalpha(current) || current=='_') {
char* id=malloc(sizeof(char)*ID_MAX_SIZE+1);
int length=1;
id[0]=current;
(*strpos)++;
while (true) {
current=prg[*strpos];
if (isalnum(current) || current=='_') {
id[length]=current;
length++;
(*strpos)++;
} else {
break;
}
if (length==ID_MAX_SIZE) {
break;
}
}
id[length]=0;
return new_token(TYPE_IDENT, val_from_str(id), prev);
} else if (isdigit(current)) {
char* id=malloc(sizeof(char)*ID_MAX_SIZE+1);
int length=1;
id[0]=current;
(*strpos)++;
while (true) {
current=prg[*strpos];
if (isdigit(current)) {
id[length]=current;
length++;
(*strpos)++;
} else {
break;
}
if (length==ID_MAX_SIZE) {
break;
}
}
id[length]=0;
return new_token(TYPE_NUM, val_from_int(atoi(id)), prev);
} else if (isblank(current) || current=='\n') {
(*strpos)++;
current=prg[*strpos];
while (isblank(current)) {
(*strpos)++;
current=prg[*strpos];
}
return next_token(strpos, prg, prev);
} else if (current=='{' || current=='}' || current=='(' || current==')' || current==';' ) {
(*strpos)++;
return new_token(current, NULL, prev);
}
return new_token(TYPE_EOF, NULL, prev);
}
Token* tokenize(char* prg) {
int strpos=0;
Token* first=NULL;
Token* tok=NULL;
while (true) {
tok=next_token(&strpos, prg, tok);
if (!first) {
first=tok;
}
if (tok->type==TYPE_EOF) {
break;
}
}
return first;
}
void free_toklist(Token* tokens) {
while (tokens) {
unsigned char type=tokens->type;
if (tokens->val) {
TokenVal val=*(tokens->val);
if (!(val.constflag)) {
if (val.type==strval) {
free(val.strval);
}
}
}
free(tokens->val);
Token* next=tokens->next;
free(tokens);
tokens=next;
if (type==TYPE_EOF) {
break;
}
}
}

17
cinc/tokenize.h Normal file
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//
// tokenize.h
// cinc
//
// Created by Peter Terpstra on 9/7/18.
// Copyright © 2018 Peter Terpstra. All rights reserved.
//
#ifndef tokenize_h
#define tokenize_h
#include "token.h"
Token* tokenize(char* prg);
void free_toklist(Token* tokens);
#endif /* tokenize_h */