From 736823f313bd2e00e49a1b52aaf0ea68a79db438 Mon Sep 17 00:00:00 2001
From: Vincent Douillet <vincent@vdouillet.fr>
Date: Fri, 3 Dec 2021 17:01:37 +0100
Subject: improve input handling & merge part 1 and 2 for the first days

---
 input.c | 65 ++++++++++++++++++++++++++++++++++++++++++-----------------------
 1 file changed, 42 insertions(+), 23 deletions(-)

(limited to 'input.c')

diff --git a/input.c b/input.c
index 5d184bb..1c72194 100644
--- a/input.c
+++ b/input.c
@@ -2,8 +2,9 @@
 #include <stdio.h>
 #include <string.h>
 #include <err.h>
+#include "input.h"
 
-/*public*/size_t count_lines(FILE* file) {
+size_t count_lines(FILE* file) {
 	size_t lineCount = 0;
 	char currentChar;
 	// on part du debut
@@ -16,40 +17,58 @@
 	return lineCount;
 }
 
-/*public*/int read_lines_as_int(FILE* file, int* result, int resultSize) {
-	// retour au debut du fichier et lecture des lignes
-	// TODO verifier le code de retour
+void input_int_read(struct input_int* result, char* filename) {
+	// open input file
+	FILE* file=fopen(filename, "r");
+	if(file == NULL)
+		err(1, "cannot open file %s\n", filename);
+	// compute line count
+	result->line_count = count_lines(file);
+	// read each line of the file
+	// TODO check return code
 	fseek(file, 0, SEEK_SET);
 	int current;
-	for(int lineIndex = 0; lineIndex < resultSize; lineIndex++) {
-		if(fscanf(file, "%d", &current) != 1) {
-			result[lineIndex] = 0;
-			printf("Erreur de lecture ligne %d\n", lineIndex);
-			continue;
-		}
-		result[lineIndex] = current;
+	result->lines = malloc(result->line_count * sizeof(int));
+	for(size_t lineIndex = 0; lineIndex < result->line_count; lineIndex++) {
+		if(fscanf(file, "%d", &current) != 1)
+			err(1, "parsing error line %ld\n", lineIndex);
+			
+		result->lines[lineIndex] = current;
 	}
 
-	return 0;
+	// close file
+	fclose(file);
 }
 
-/*public*/int read_lines_as_string(FILE* file, char** result, int resultSize) {
-	// retour au debut du fichier et lecture des lignes
-	// TODO verifier le code de retour
+void input_str_read(struct input_str* result, char* filename) {
+	// open input file
+	FILE* file=fopen(filename, "r");
+	if(file == NULL)
+		err(1, "cannot open file %s\n", filename);
+	// compute line count
+	result->line_count = count_lines(file);
+	
+	// read each line of the file
+	// TODO check return code
 	fseek(file, 0, SEEK_SET);
 	size_t lineSize = 0;
-	for(int lineIndex = 0; lineIndex < resultSize; lineIndex++) {
-		char** dst = &result[lineIndex];
+	result->lines = malloc(result->line_count * sizeof(char*));
+	for(size_t lineIndex = 0; lineIndex < result->line_count; lineIndex++) {
+		char** dst = &(result->lines[lineIndex]);
 		if(getline(dst, &lineSize, file) < 0)
-			err(1, "Erreur de lecture ligne %d\n", lineIndex);
+			err(1, "read error line %ld\n", lineIndex);
 	}
 
-	return 0;
+	fclose(file);
+}
+
+void input_int_free(struct input_int* input) {
+	free(input->lines);
 }
 
-/*public*/void free_strings(char** strings, size_t stringCount) {
-	for(size_t i = 0; i < stringCount; i++) {
-		free(strings[i]);
+void input_str_free(struct input_str* input) {
+	for(size_t i = 0; i < input->line_count; i++) {
+		free(input->lines[i]);
 	}
-	free(strings);
+	free(input->lines);
 }
-- 
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