diff options
Diffstat (limited to 'utility.c')
| -rw-r--r-- | utility.c | 45 |
1 files changed, 45 insertions, 0 deletions
@@ -1617,6 +1617,51 @@ extern char *get_line_from_file(FILE *file) return linebuf; } +#if defined BB_ECHO || defined BB_TR +char process_escape_sequence(char **ptr) +{ + char c; + + switch (c = *(*ptr)++) { + case 'a': + c = '\a'; + break; + case 'b': + c = '\b'; + break; + case 'f': + c = '\f'; + break; + case 'n': + c = '\n'; + break; + case 't': + c = '\t'; + break; + case 'v': + c = '\v'; + break; + case '\\': + c = '\\'; + break; + case '0': case '1': case '2': case '3': + case '4': case '5': case '6': case '7': + c -= '0'; + if ('0' <= **ptr && **ptr <= '7') { + c = c * 8 + (*(*ptr)++ - '0'); + if ('0' <= **ptr && **ptr <= '7') + c = c * 8 + (*(*ptr)++ - '0'); + } + break; + default: + (*ptr)--; + c = '\\'; + break; + } + return c; +} +#endif + /* END CODE */ /* Local Variables: |