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authorzlg <zlg@zlg.space>2013-02-13 20:48:44 -0600
committerzlg <zlg@zlg.space>2013-02-13 20:48:44 -0600
commit5018e06c580dd21c958ec1672c26a3448faf0c55 (patch)
treecebbb56dad0a6b821cad3712c7977f6f9b0086ab /ch1/1-10_literal-escapes.c
parentFix 1-09's solution (diff)
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Add license file, reorganize project
Diffstat (limited to 'ch1/1-10_literal-escapes.c')
-rw-r--r--ch1/1-10_literal-escapes.c33
1 files changed, 33 insertions, 0 deletions
diff --git a/ch1/1-10_literal-escapes.c b/ch1/1-10_literal-escapes.c
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+++ b/ch1/1-10_literal-escapes.c
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+#include <stdio.h>
+
+/* The C Programming Language, 2nd Edition
+ *
+ * Exercise 1-10: Write a program to copy its input to its output, replacing
+ * each tab by '\t', each backspace by '\b', and each backslash by '\\'. This
+ * makes tabs and backspaces visible in an unambiguous way.
+ *
+ * Answer: Run a loop with getchar() and check its value. When you run into a
+ * tab, backspace, or backslash, just output the two characters and move on.
+ */
+
+int main(void) {
+ char c;
+
+ while ((c = getchar()) != EOF) {
+ if (c == '\t') {
+ printf("\\t");
+ continue;
+ }
+ if (c == '\b') {
+ printf("\\b");
+ continue;
+ }
+ if (c == '\\') {
+ printf("\\\\");
+ continue;
+ }
+ putchar(c);
+ }
+
+ return 0;
+}