Lecture depuis la console et C en mode nazi

CMakeLists.txt

@@ -2,6 +2,7 @@ cmake_minimum_required(VERSION 3.7)
 project(fish)
 
 set(CMAKE_C_STANDARD 99)
+set(CMAKE_C_FLAGS "-Wall -Werror -pedantic -fpic -Wextra")
 
 set(SOURCE_FILES main.c fish_lib/fish_lib.c fish_lib/fish_lib.h)
 add_executable(fish ${SOURCE_FILES})

fish_lib/fish_lib.c

@@ -6,38 +6,69 @@
 #include <string.h>
 #include "fish_lib.h"
 
-void fishLoop(){
-    printf("banana");
+#define FISH_BUFFER_SIZE 1024
+#define FISH_TOKENS " \t\r\n\a"
+
+void fishLoop(Settings * settings){
+    char * line = NULL;
+    WordArray * splited = NULL;
+    int exited = 0;
+    int i;
+
+    while (!exited) {
+        printf("%s", settings->PS1);
+        line = fishReadLine();
+        line = fishExpand(line);
+
+        splited = split(line, FISH_TOKENS);
+        for (i = 0; i < splited->size; i++) {
+            printf("%s\n", splited->words[i]);
+            if(!strcmp(splited->words[i], "exit"))
+                exited = 1;
+        }
+
+        freeWordArray(splited);
+        free(line);
+    }
 }
 
-int countSeparator(char *string, char separator) {
+int countSeparators(char *string, char *separators) {
     int nb = 0;
     int i = 0;
+    int k = 0;
     while (string[i] != '\0'){
-        if (string[i] == separator){
+        while (separators[k] != '\0'){
+            if (string[i] == separators[k]){
                 nb++;
             }
+            k++;
+        }
         i++;
+        k = 0;
     }
     return nb;
 }
 
-Word * split(char *string, char *separator){
-    int array_size = countSeparator(string, separator[0]) + 1;
-    Word *tokens = malloc(sizeof(Word) * array_size);
+WordArray * split(char *string, char *separator){
+    int array_size = countSeparators(string, separator) + 1;
+    WordArray *tokens = (WordArray*) malloc(sizeof(WordArray));
     char *to_delete = strdup(string);
     char *token = NULL;
     int i = 0;
 
-    if (tokens == NULL || to_delete == NULL){
+    if (tokens != NULL){
+        tokens->words = (char **) malloc(sizeof(char*) * array_size);
+        tokens->size = array_size;
+    }
+
+    if (tokens == NULL || to_delete == NULL || tokens->words == NULL){
         fprintf(stderr, "fish: Error allocating fucking pointer !");
         exit(EXIT_FAILURE);
     }
 
     while((token = strsep(&to_delete, separator)) != NULL){
-        printf("%s\n", token);
-        tokens[i].word = strdup(token);
-        tokens[i].size = strlen(token);
+        tokens->words[i] = strdup(token);
+        i++;
     }
 
     free(to_delete);
@@ -45,16 +76,66 @@ Word * split(char *string, char *separator){
     return tokens;
 }
 
-void freeWordArray(Word *array, int size) {
+void freeWordArray(WordArray *array) {
     int i;
-    for (i=0;i<size;i++){
-        free(array + i);
+    if (array != NULL) {
+        for (i = 0; i < array->size; i++) {
+            free(array->words[i]);
         }
         free(array);
+    }
 
 }
 
 char *fishReadLine() {
+    size_t bufferSize = FISH_BUFFER_SIZE;
+    int position = 0;
+    char *line = malloc(sizeof(char*) * bufferSize);
+    int c;
+
+    if (line == NULL){
+        fprintf(stderr, "fish: Error allocating fucking buffer shit !");
+        exit(EXIT_FAILURE);
+    }
+
+    while (1){
+        c = getchar();
+
+        if (c == EOF || c == '\n'){
+            line[position] = '\0';
+            return line;
+        } else {
+            line[position] = (char) c;
+        }
+
+        position++;
+
+        if ((size_t) position > bufferSize){
+            bufferSize+=bufferSize;
+            line = realloc(line, bufferSize);
+            if (line == NULL){
+                fprintf(stderr, "fish: Error allocating fucking buffer shit !");
+                exit(EXIT_FAILURE);
+            }
+        }
+    }
+
+
     return NULL;
 }
 
+char *fishExpand(char *line) {
+    return line;
+}
+
+Settings *getSettings() {
+    Settings *s = (Settings*) malloc(sizeof(Settings));
+    if (s == NULL){
+        fprintf(stderr, "fish: Error allocating fucking settings");
+        exit(EXIT_FAILURE);
+    }
+    s->PS1 = strdup("~>");
+
+    return s;
+}
+

fish_lib/fish_lib.h

@@ -6,18 +6,32 @@
 #define FISH_FISH_LIB_H
 
 typedef struct {
-    char * word;
-    size_t size;
-} Word;
+    char ** words;
+    int size;
+} WordArray;
 
-void fishLoop();
+typedef struct {
+    char *PS1;
+} Settings;
+
+/* WordArray functions */
+
+WordArray * split(char *string, char *separator);
+void freeWordArray(WordArray *array);
+
+/* Settings functions */
+
+Settings * getSettings();
+
+
+/* General purpose functions */
+
+void fishLoop(Settings * settings);
 
 char * fishReadLine();
 
-Word * split(char *string, char *separator);
+int countSeparators(char *string, char *separators);
 
-int countSeparator(char *string, char separator);
-
-void freeWordArray(Word *array, int size);
+char * fishExpand(char* line);
 
 #endif //FISH_FISH_LIB_H

main.c

@@ -1,12 +1,9 @@
-#include <stdio.h>
 #include <stdlib.h>
 #include "fish_lib/fish_lib.h"
 
 int main() {
     /* todo load config file */
-
-    split("I love eating bananas", " ");
-    fishLoop();
+    fishLoop(getSettings());
 
     return EXIT_SUCCESS;
 }