diff options
| author | Otto Moerbeek <otto@cvs.openbsd.org> | 2011-06-01 07:18:24 +0000 |
|---|---|---|
| committer | Otto Moerbeek <otto@cvs.openbsd.org> | 2011-06-01 07:18:24 +0000 |
| commit | c74316b0335224c68762624ed9fc6bf459ea8ce9 (patch) | |
| tree | 65083591bf15d2878653928fc1d295449c313a83 /usr.bin/bc | |
| parent | 5fe0663ee83160c283780c5c74b6087e50fbc3c9 (diff) | |
- avoid YY_FLUSH_BUFFER: it is not signal safe and it does not work as intended
after the introduction of editline
- honour editline edit off mode
Diffstat (limited to 'usr.bin/bc')
| -rw-r--r-- | usr.bin/bc/bc.y | 4 | ||||
| -rw-r--r-- | usr.bin/bc/scan.l | 33 |
2 files changed, 30 insertions, 7 deletions
diff --git a/usr.bin/bc/bc.y b/usr.bin/bc/bc.y index c66669f802f..22b850e6540 100644 --- a/usr.bin/bc/bc.y +++ b/usr.bin/bc/bc.y @@ -1,5 +1,5 @@ %{ -/* $OpenBSD: bc.y,v 1.34 2011/03/07 08:11:15 otto Exp $ */ +/* $OpenBSD: bc.y,v 1.35 2011/06/01 07:18:23 otto Exp $ */ /* * Copyright (c) 2003, Otto Moerbeek <otto@drijf.net> @@ -1143,7 +1143,7 @@ main(int argc, char *argv[]) history(hist, &he, H_SETSIZE, 100); el_set(el, EL_HIST, history, hist); el_set(el, EL_EDITOR, "emacs"); - el_set(el, EL_SIGNAL, 1); + el_set(el, EL_SIGNAL, 0); el_set(el, EL_PROMPT, dummy_prompt); el_source(el, NULL); } diff --git a/usr.bin/bc/scan.l b/usr.bin/bc/scan.l index f7b6c6d604f..2a8e7caaeb2 100644 --- a/usr.bin/bc/scan.l +++ b/usr.bin/bc/scan.l @@ -1,5 +1,5 @@ %{ -/* $OpenBSD: scan.l,v 1.24 2011/03/07 08:11:15 otto Exp $ */ +/* $OpenBSD: scan.l,v 1.25 2011/06/01 07:18:23 otto Exp $ */ /* * Copyright (c) 2003, Otto Moerbeek <otto@drijf.net> @@ -38,6 +38,8 @@ History *hist; static char *strbuf = NULL; static size_t strbuf_sz = 1; static bool dot_seen; +static int use_el; +static volatile sig_atomic_t skipchars; static void init_strbuf(void); static void add_str(const char *); @@ -236,12 +238,18 @@ add_str(const char *str) void abort_line(int sig) { - static const char str[] = "[\n]P\n"; + static const char str1[] = "[\n]P\n"; + static const char str2[] = "[^C\n]P\n"; int save_errno; + const LineInfo *info; save_errno = errno; - YY_FLUSH_BUFFER; /* XXX signal race? */ - write(STDOUT_FILENO, str, sizeof(str) - 1); + if (use_el) { + write(STDOUT_FILENO, str2, sizeof(str2) - 1); + info = el_line(el); + skipchars = info->lastchar - info->buffer; + } else + write(STDOUT_FILENO, str1, sizeof(str1) - 1); errno = save_errno; } @@ -295,17 +303,32 @@ static int bc_yyinput(char *buf, int maxlen) { int num; - if (yyin == stdin && interactive) { + + if (el != NULL) + el_get(el, EL_EDITMODE, &use_el); + + if (yyin == stdin && interactive && use_el) { const char *bp; + sigset_t oset, nset; if ((bp = el_gets(el, &num)) == NULL || num == 0) return (0); + sigemptyset(&nset); + sigaddset(&nset, SIGINT); + sigprocmask(SIG_BLOCK, &nset, &oset); + if (skipchars < num) { + bp += skipchars; + num -= skipchars; + } + skipchars = 0; + sigprocmask(SIG_SETMASK, &oset, NULL); if (num > maxlen) { el_push(el, (char *)(void *)bp + maxlen); num = maxlen; } memcpy(buf, bp, num); history(hist, &he, H_ENTER, bp); + el_get(el, EL_EDITMODE, &use_el); } else { int c = '*'; for (num = 0; num < maxlen && |