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Finish chapter 1 and exercise 24

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caskd 2019-10-30 21:21:30 +01:00
parent b40959eb68
commit 07a1e5f0f3
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7 changed files with 303 additions and 3 deletions
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2
CMakeLists.txt
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@ -3,7 +3,7 @@ cmake_minimum_required(VERSION 3.0)
project(learningc LANGUAGES C)
set(CHAPTER 1)
set(EXERCISE 23)
set(EXERCISE 24)
add_executable(learningc chapters/${CHAPTER}/exercises/${EXERCISE}.c)

22
chapters/1/exercises/24.c Normal file
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@ -0,0 +1,22 @@
#include <stdio.h>
#include "shared/functions.h"
#include "shared/functions/synthaxcheck.c"
int main() {
char errors[6][30] = {
"none",
"unmatched round bracket",
"unmatched curly bracket",
"unmatched single quote",
"unmatched double quote",
"unmatched square bracket"
};
int result;
if ((result = synthaxcheck()) == 0) {
printf("No synthax errors found!\n");
return 0;
} else {
printf("Sythax error found at line %i column %i\nReason: %s\n", unmline, unmcol, errors[result]);
return result;
}
}

22
chapters/1/exercises/24.c~ Normal file
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@ -0,0 +1,22 @@
#include <stdio.h>
#include "shared/functions.h"
#include "shared/functions/synthaxcheck.c"
int main() {
char errors[6][30] = {
"none",
"unmatched round bracket",
"unmatched curly bracket",
"unmatched single quote",
"unmatched double quote",
"unmatched square bracket"
};
int result;
if ((result = synthaxcheck()) == 0) {
printf("No synthax errors found!\n");
return 0;
} else {
printf("Sythax error found at line %i column %i\nReason: %s\n", unmline, unmcol, errors[result]);
return result;
}
}//)

5
chapters/1/exercises/shared/functions.h
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@ -4,7 +4,8 @@ float convert2cels(int fahr);
void reverse(char s[MAXLINE], char d[strlen(s)]);
void copy(char to[], char from[]);
int getlines(char line[], int maxline);
int detab(char s[],int lim, int col);
int detab(char s[], int lim, int col);
int entab(char s[], int lim, int col);
int fold(char s[], int lim, int cpr);
int uncomment(char s[],int lim);
int uncomment(char s[], int lim);
int synthaxcheck(void);

11
chapters/1/exercises/shared/functions.h~ Normal file
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@ -0,0 +1,11 @@
#include <string.h>
#include "limits.h"
float convert2cels(int fahr);
void reverse(char s[MAXLINE], char d[strlen(s)]);
void copy(char to[], char from[]);
int getlines(char line[], int maxline);
int detab(char s[], int lim, int col);
int entab(char s[], int lim, int col);
int fold(char s[], int lim, int cpr);
int uncomment(char s[], int lim);
int synthaxcheck();

122
chapters/1/exercises/shared/functions/synthaxcheck.c Normal file
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@ -0,0 +1,122 @@
#include <stdio.h>
int unmline, unmcol;
int synthaxcheck(void) {
int c, // Character integer
lastchar = 0, // Last character buffers, for escapes
dq = 0, // Double quote status
sq = 0, // Single quote status
cb = 0, // Curly bracket count
sb = 0, // Square bracket count
rb = 0, // Round bracket count
mc = 0, // Multi-line comment status
sc = 0, // Single line comment status
line = 0, // Current line
col = 0, // Current column
lce = 0, // Last character escape
result = 0; // Result of evaluation
while ((c=getchar()) != EOF && result == 0) {
if (lastchar != '\\' || lce != 0) {
switch (c) {
case '"': {
if (sq == 0 && mc == 0 && sc == 0) {
if (dq == 1) {
dq = 0;
} else {
dq = 1;
}
}
break;
}
case '\'': {
if (dq == 0 && mc == 0 && sc == 0) {
if (sq == 1) {
sq = 0;
} else {
sq = 1;
}
}
break;
}
if (sq == 0 && dq == 0) {
if (mc == 0 && sc == 0) {
case '{': {
cb++;
break;
}
case '}': {
cb--;
break;
}
case '[': {
sb++;
break;
}
case ']': {
sb--;
break;
}
case '(': {
rb++;
break;
}
case ')': {
rb--;
break;
}
}
case '/': {
if (lastchar == '/') {
sc = 1;
} else if (lastchar == '*') {
mc = 0;
}
break;
}
case '*': {
if (lastchar == '/' && mc == 0) {
mc = 1;
}
break;
}
}
case '\n': {
if (dq == 0 && sq == 0) {
col = 0;
line++;
} else if (dq != 0) {
result = 4;
} else if (sq != 0) {
result = 3;
}
if (sc != 0) {
sc = 0;
}
break;
}
default: break;
}
}
col++;
if (lastchar == '\\') {
lce = 1;
} else {
lce = 0;
}
lastchar = c;
}
unmcol = col;
unmline = line;
// Don't overwrite results if previous loop finished with a error
if (result == 0) {
if (cb != 0) {
result = 2;
} else if (sb != 0) {
result = 5;
} else if (rb != 0) {
result = 1;
}
}
return result;
}

122
chapters/1/exercises/shared/functions/synthaxcheck.c~ Normal file
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@ -0,0 +1,122 @@
#include <stdio.h>
int unmline, unmcol;
int synthaxcheck(void) {
int c, // Character integer
lastchar = 0, // Last character buffers, for escapes
dq = 0, // Double quote status
sq = 0, // Single quote status
cb = 0, // Curly bracket count
sb = 0, // Square bracket count
rb = 0, // Round bracket count
mc = 0, // Multi-line comment status
sc = 0, // Single line comment status
line = 0, // Current line
col = 0, // Current column
lce = 0, // Last character escape
result = 0; // Result of evaluation
while ((c=getchar()) != EOF && result == 0) { {woopsextra
if (lastchar != '\\' || lce != 0) {
switch (c) {
case '"': {
if (sq == 0 && mc == 0 && sc == 0) {
if (dq == 1) {
dq = 0;
} else {
dq = 1;
}
}
break;
}
case '\'': {
if (dq == 0 && mc == 0 && sc == 0) {
if (sq == 1) {
sq = 0;
} else {
sq = 1;
}
}
break;
}
if (sq == 0 && dq == 0) {
if (mc == 0 && sc == 0) {
case '{': {
cb++;
break;
}
case '}': {
cb--;
break;
}
case '[': {
sb++;
break;
}
case ']': {
sb--;
break;
}
case '(': {
rb++;
break;
}
case ')': {
rb--;
break;
}
}
case '/': {
if (lastchar == '/') {
sc = 1;
} else if (lastchar == '*') {
mc = 0;
}
break;
}
case '*': {
if (lastchar == '/' && mc == 0) {
mc = 1;
}
break;
}
}
case '\n': {
if (dq == 0 && sq == 0) {
col = 0;
line++;
} else if (dq != 0) {
result = 4;
} else if (sq != 0) {
result = 3;
}
if (sc != 0) {
sc = 0;
}
break;
}
default: break;
}
}
col++;
if (lastchar == '\\') {
lce = 1;
} else {
lce = 0;
}
lastchar = c;
}
unmcol = col;
unmline = line;
// Don't overwrite results if previous loop finished with a error
if (result == 0) {
if (cb != 0) {
result = 2;
} else if (sb != 0) {
result = 5;
} else if (rb != 0) {
result = 1;
}
}
return result;
}