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Diffstat (limited to 'ch1/1-10_literal-escapes.c')
-rw-r--r-- | ch1/1-10_literal-escapes.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/ch1/1-10_literal-escapes.c b/ch1/1-10_literal-escapes.c new file mode 100644 index 0000000..903fff4 --- /dev/null +++ b/ch1/1-10_literal-escapes.c @@ -0,0 +1,33 @@ +#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; +} |