diff options
| -rw-r--r-- | toys/pending/sed.c | 34 |
1 files changed, 29 insertions, 5 deletions
diff --git a/toys/pending/sed.c b/toys/pending/sed.c index 070022c4..a5c24454 100644 --- a/toys/pending/sed.c +++ b/toys/pending/sed.c @@ -83,9 +83,9 @@ config SED H Remember this line (appending to remembered line, if any) - l Print this line, escaping \abfrtv (but leaving \n as a newline), - using octal escapes for other nonprintable characters, and - wrapping lines to terminal width with a backslash and newline + l Print line, escaping \abfrtv (but not newline), octal escaping other + nonprintable characters, wrapping lines to terminal width with a + backslash, and appending $ to actual end of line. n Print default output and read next line, replacing current line (If no next line available, quit processing script) @@ -175,6 +175,7 @@ GLOBALS( void *restart, *lastregex; long nextlen, rememberlen, count; int fdout, noeol; + unsigned xx; ) struct step { @@ -425,8 +426,31 @@ static void walk_pattern(char **pline, long plen) } else if (c=='i') { str = logrus->arg1+(char *)logrus; emit(str, strlen(str), 1); -// } else if (c=='l') { -// error_exit("todo: l"); + } else if (c=='l') { + int i, x, off; + + if (!TT.xx) { + terminal_size(&TT.xx, 0); + if (!TT.xx) TT.xx = 80; + if (TT.xx > sizeof(toybuf)-10) TT.xx = sizeof(toybuf)-10; + if (TT.xx > 4) TT.xx -= 4; + } + + for (i = off = 0; i<len; i++) { + if (off >= TT.xx) { + toybuf[off++] = '\\'; + emit(toybuf, off, 1); + off = 0; + } + x = stridx("\\\a\b\f\r\t\v", line[i]); + if (x != -1) { + toybuf[off++] = '\\'; + toybuf[off++] = "\\abfrtv"[x]; + } else if (line[i] >= ' ') toybuf[off++] = line[i]; + else off += sprintf(toybuf+off, "\\%03o", line[i]); + } + toybuf[off++] = '$'; + emit(toybuf, off, 1); } else if (c=='n') { TT.restart = logrus->next; |