commit 6c445c8f075c7749231cd5a83488606fe4f69ffc
parent aabc3780e72e11d2fe81acf0f1fc4bf3f7a6bd8b
Author: Martin J. Klöckner <martin.cachari@gmail.com>
Date: Fri, 20 Nov 2020 23:32:13 -0300
Added ex13.c, ex14.c & ex1x15.c(unfinished)
Diffstat:
3 files changed, 137 insertions(+), 0 deletions(-)
diff --git a/95.11/guia03/ex13.c b/95.11/guia03/ex13.c
@@ -0,0 +1,61 @@
+// Reads a string from stdin and converts it to uppercase or lowercase
+// depending on an option readed from stdin
+
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+
+#define MSG_STR_PROMPT "Introduzca una cadena:"
+#define MSG_FMT_PROMPT "Convertir a: (0 - MAYUSCULAS / 1 - MINUSCULAS)"
+#define MSG_FMT_ERR "Err: Formato incorrecto"
+
+#define MAX_STR_LEN 100
+
+typedef enum {
+ FMT_MAYUSCULAS, FMT_MINUSCULAS
+} format_t;
+
+
+int main ( void ) {
+
+
+ char buffer[MAX_STR_LEN];
+ char str[MAX_STR_LEN];
+ format_t format;
+
+
+ printf(MSG_STR_PROMPT"\n>> ");
+ fgets(buffer, MAX_STR_LEN, stdin);
+ strcpy(str, buffer);
+
+ printf(MSG_FMT_PROMPT"\n>> ");
+ format = (getchar () - '0');
+ if((format < 0) || (format > 1)) {
+ fprintf(stderr, MSG_FMT_ERR"\n");
+ return 1;
+ }
+
+ printf("La cadena ingresada: %sOpcion elegida: %d\n", str, format);
+
+ int i, aux;
+ switch(format)
+ {
+ case FMT_MAYUSCULAS:
+ for(i = 0; (aux = str[i]) != '\n'; i++) {
+ if(islower(aux))
+ str[i] = toupper(aux);
+ }
+ break;
+ case FMT_MINUSCULAS:
+ for(i = 0; (aux = str[i]) != '\n'; i++) {
+ if(isupper(aux))
+ str[i] = tolower(aux);
+ }
+ break;
+ }
+
+ printf("%s", str);
+ return 0;
+}
diff --git a/95.11/guia03/ex14.c b/95.11/guia03/ex14.c
@@ -0,0 +1,35 @@
+#include <stdio.h>
+
+
+typedef enum {
+ OK, ERROR
+} status_t;
+
+
+size_t rechar(char *str, char old, char new);
+
+
+int main( void ) {
+
+ char str[] = "Hello world!";
+
+ rechar(str, 'o', 'e');
+
+ printf("%s\n", str);
+ return OK;
+}
+
+
+
+size_t rechar(char *str, char old, char new) {
+ if(str == NULL)
+ return ERROR;
+
+ int i;
+ for(i = 0; str[i] != '\0'; i++) {
+ if(str[i] == old) {
+ str[i] = new;
+ }
+ }
+ return OK;
+}
diff --git a/95.11/guia03/ex15.c b/95.11/guia03/ex15.c
@@ -0,0 +1,41 @@
+#include <stdio.h>
+#include <string.h>
+
+#define MAX_LEN 100
+
+typedef enum {
+ OK, ERROR
+} status_t;
+
+// status_t left_trim(str);
+
+int main( void ) {
+
+ char buffer[MAX_LEN];
+ int i, j, len;
+
+ if((fgets(buffer, MAX_LEN, stdin)) == NULL)
+ return ERROR;
+
+ len = strlen(buffer);
+ printf("%d\n", len);
+
+ char str[len - 1];
+ char aux;
+
+ for(i = 0; buffer[i] == ' '; i++) {
+ //for(j = 0; buffer[j] == ' '; j++)
+ // str[i] = buffer[j];
+ // printf("for\n");
+ str[i] = buffer[i];
+ if(buffer[i] == ' ') {
+ str[i] = buffer[i + 1];
+ i++;
+ }
+ //str[i] = buffer[j];
+ }
+
+ printf("%s\n", str);
+
+ return OK;
+}
